398 results match your criteria Biocontrol Science[Journal]


A Multifaceted Evaluation on the Penetration Resistance of Protective Clothing Fabrics against Viral Liquid Drops without Pressure.

Biocontrol Sci 2020 ;25(1):9-16

National Institute of Infectious Diseases.

Healthcare workers should wear appropriate personal protective clothing (PPC) on assuming the risk of exposure to various pathogens. Therefore, it is important to understand PPC performance against pathogen penetration. Currently, standard methods to evaluate and classify the penetration resistance of PPC fabrics with pressure using synthetic blood or phi-X174 phage have been established by the International Organization for Standardization (ISO). Read More

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http://dx.doi.org/10.4265/bio.25.9DOI Listing
January 2020

Synergistic Antibacterial Efficacies of Chlorhexidine Digluconate or Protamine Sulfate Combined with Laminaria japonica or Rosmarinus officinalis Extracts against Streptococcus mutans.

Biocontrol Sci 2020 ;25(1):41-44

Department of Oral Microbiology, College of Dentistry, Research Institute of Oral Science, Gangneung-Wonju National University.

Chlorhexidine digluconate inhibits oral bacteria and the formation of dental plaque. Protamine sulfate, a polycationic protein, exerts antibacterial activity by altering the cell wall of bacteria. Extracts of Laminaria japonica and Rosmarinus officinalis display antimicrobial effects against oral pathogens. Read More

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http://dx.doi.org/10.4265/bio.25.41DOI Listing
January 2020

Skin Cleansing Technique with Disinfectant using Improved High-Velocity Steam-Air Micromist Jet Spray.

Biocontrol Sci 2020 ;25(1):35-39

Department of Oral and Maxillofacial Surgery, National Defense Medical College.

Application of a high-velocity steam-air micromist jet spray (HVS-AMJS) with disinfectants for cleansing the skin is proposed. Low-pressure steam is mixed with compressed air in a nozzle and then sprayed onto a surface of skin or material located approximately 22 cm from the nozzle. The temperature on the sprayed surface was controlled between 40ºC and 45 ºC. Read More

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http://dx.doi.org/10.4265/bio.25.35DOI Listing
January 2020

Diversity of the Photosynthetic Bacterial Communities in Highly Eutrophicated Yamagawa Bay Sediments.

Biocontrol Sci 2020 ;25(1):25-33

Research Field in Fisheries; Agriculture, Fisheries and Veterinary Medicine Area; Research and Education Assembly; Kagoshima University.

Yamagawa Bay, located in Ibusuki, Kagoshima Prefecture, Japan, is a geographically enclosed coastal marine inlet, and its deteriorating seabed sediments are under an anoxic, reductive, sulfide-rich condition. In order to gain insight into diversity of anoxygenic photosynthetic bacteria (AnPBs) and their ecophysiological roles in the sediments, three approaches were adopted: isolation of AnPBs, PCR-DGGE of 16S rDNA, and PCR-DGGE of pufM. Among the bacterial isolates, relatives of Rhodobacter sphaeroides were most dominant, possibly contributing to transforming organic pollutants in the sediments. Read More

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http://dx.doi.org/10.4265/bio.25.25DOI Listing
January 2020

Changes in the Survivability of Marine Vibrio sp. under Hyper KCl Stress in the Presence of Betaine as Well as with Exposure to 37ºC.

Biocontrol Sci 2020 ;25(1):17-24

Graduate School of Maritime Sciences, Kobe University.

Survivability at hyper KCl stress was examined at 30ºC and 37ºC in the presence and absence of an osmoprotectant by using resting cells prepared from marine Vibrio sp. grown at early stationary phase. Survivability was decided by counting colonies. Read More

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http://dx.doi.org/10.4265/bio.25.17DOI Listing
January 2020

Postbiotics Applications as Infectious Disease Control Agent in Aquaculture.

Biocontrol Sci 2020 ;25(1):1-7

Borneo Marine Research Institute, Universiti Malaysia Sabah, Jalan UMS.

Aquaculture is developing so fast that infectious disease outbreak happens regularly. Antibiotic treatment results in development of antibiotic resistance pathogens, thus cause urgent action in searching of other alternative treatment method. Postbiotic was one of the explored strategies among various proposed alternatives. Read More

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http://dx.doi.org/10.4265/bio.25.1DOI Listing
January 2020

Comparative Evaluation of Selective Media for the Detection of Bacillus cereus.

Biocontrol Sci 2019 ;24(4):221-227

Department of Food Bioscience and Biotechnology, College of Bioresource Science, Nihon University.

The commercially available 3 types of selective media in Japan were compared for the detection of Bacillus cereus. When assessed inclusivity using 25 B. cereus strains, MYP agar, NGKG agar, and chromogenic X-BC agar demonstrated excellent inclusivity. Read More

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http://dx.doi.org/10.4265/bio.24.221DOI Listing

Investigations on Contamination of Environmental Water Samples by Legionella using Real-Time Quantitative PCR Combined with Amoebic Co-Culturing.

Biocontrol Sci 2019 ;24(4):213-220

Department of Pathology and Microbiology Faculty of Medicine, Saga University.

We analyzed the contamination of environmental water samples with Legionella spp. using a conventional culture method, real-time quantitative PCR (qPCR), and real-time qPCR combined with an amoebic co-culture method. Samples (n = 110) were collected from 19 cooling towers, 31 amenity water facilities, and 60 river water sources of tap water in Japan. Read More

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http://dx.doi.org/10.4265/bio.24.213DOI Listing

An Assessment of the Bacterial Diversity found in Dental Unit Waterlines using the Illumina MiSeq.

Biocontrol Sci 2019 ;24(4):201-212

Department of Oral Microbiology, College of Dentistry, Research Institute of Oral Science, Gangneung-Wonju National University.

Water from the waterlines of dental units is often contaminated with bacteria but there have been few studies accurately assessing the diversity of these bacterial populations. The aim of our study was to assess the bacterial diversity present in water collected from dental unit waterlines using the Illumina MiSeq. Water was collected from two separate dental units located in a dental hospital and two units found in two separate private clinics in Gangneung-si, Korea. Read More

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http://dx.doi.org/10.4265/bio.24.201DOI Listing

Ochroconis Species Isolated from Limestone Areas as the Origin of Indoor Ochroconis.

Biocontrol Sci 2019 ;24(4):193-200

Osaka Institute of Public Health.

The molecular, morphological, and physiological features of 42 strains of Ochroconis collected from many limestone areas were studied. Ochroconis strains are often found in limestone areas, although they have rarely been found in other wild areas, e. g. Read More

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http://dx.doi.org/10.4265/bio.24.193DOI Listing

Antibacterial Activity of Lactic Acid Bacteria to Improve Shelf Life of Raw Meat.

Biocontrol Sci 2019 ;24(4):185-192

Posgrado en Producción Animal, Universidad Autónoma Chapingo.

Lactic Acid Bacteria (LAB) are generally recognized as safe. It has been used to increase the shelf-life of fermented products, and its antimicrobial action is based on the metabolites secretions, such as lactic acid, hydrogen peroxide, reuterin, bacteriocins and the like-bacteriocins substances. It has been proven that LAB are able to inhibit deteriorating bacteria of raw meat, but improper handling of live cultures could lead to spoilage. Read More

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http://dx.doi.org/10.4265/bio.24.185DOI Listing

Effects of UV Irradiation on Penicillium Strains Isolated from a Bread Plant and the Application to Bakery Products.

Biocontrol Sci 2019 ;24(3):179-183

Center for Fungal Consultation, JAPAN.

We tested treatement with UV irradiation for controlling the growth of bread mold. First, we analyzed the sterilizing effect of a dose of approximately 25 mJ/cm radiation on nine Penicillium and two Talaromyces strains that were isolated from a bread-manufacturing plant. The P. Read More

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http://dx.doi.org/10.4265/bio.24.179DOI Listing
January 2020

Antibiotic-resistance of Fecal Coliforms at the Bottom of the Tama River, Tokyo.

Biocontrol Sci 2019 ;24(3):173-178

Department of Marine Resources and Energy, Tokyo University of Marine Science and Technology.

We investigated the midstream bottom of the Tama River, which flows through Tokyo, to evaluate the occurrence and degree of antibiotic-resistant fecal coliforms including multidrug-resistant fecal coliforms. The genera Klebsiella and Escherichia were the major isolates among the fecal coliforms. For the genus Klebsiella, the highest antibiotic resistance was observed for ampicillin (100%) , followed by kanamycin, tetracycline, cefotaxime, and cefoxitin. Read More

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http://dx.doi.org/10.4265/bio.24.173DOI Listing
January 2020

Microflora of Mycotoxigenic Fungi in Rice Grains in Kyushu Region of Japan and Their Changes during Storage under non-Controlled Conditions.

Biocontrol Sci 2019 ;24(3):161-166

Department of Food and Life Sciences, Azabu University.

Contamination of agricultural crops by mycotoxins has increased because of the expansion of mycotoxin-producing fungi along with global warming. In this study, the fungal microflora of brown rice grains cultivated in Kyushu region in the southern part of Japan was investigated. A total of 75% of rice samples examined in this study showed less than 30% of fungal contamination rates with a median rate of 12. Read More

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http://dx.doi.org/10.4265/bio.24.161DOI Listing
January 2020

Investigation of the Effective Concentration of Ozonated Water for Disinfection in the Presence of Protein Contaminants.

Biocontrol Sci 2019 ;24(3):155-160

Faculty of Pharmaceutical Sciences, Suzuka University of Medical Science.

Ozonated water (OW) is presently used as a chemical disinfectant in many fields, due to its versatile antimicrobial properties. As ozone rapidly decomposes to oxygen, especially in the presence of organic matter, it is important to estimate the authentic antimicrobial activity of OW in the presence of contaminants. However, the effect of contaminants on the antimicrobial activity of OW has not been fully investigated. Read More

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http://dx.doi.org/10.4265/bio.24.155DOI Listing
January 2020

Plant Defense System Activated in Chili Plants by Using Extracts from Eucalyptus citriodora.

Biocontrol Sci 2019 ;24(3):137-144

Institute of Agricultural Sciences, University of the Punjab.

Capsicum annuum L. is infected by Fusarium Wilt and causes significant yield losses in Pakistan. Biological control is an excellent and environment friendly way. Read More

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http://dx.doi.org/10.4265/bio.24.137DOI Listing
January 2020

The Bacteriological Properties of Bacillus Strain TM-I-3 and Analysis of the Volatile Antifungal Compounds Emitted by this Bacteria.

Biocontrol Sci 2019 ;24(3):129-136

Faculty of Pharmaceutical Sciences, Nagasaki International University.

Previously, we isolated and examined a bacterial strain designated as TM-I-3, belonging to the genus Bacillus, from soil in Nagasaki, Japan. This bacterium was able to inhibit the growth of molds, without coming into direct contact with them. Non-contact antifungals are capable of providing multidirectional inhibition and may contribute to disease prevention. Read More

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http://dx.doi.org/10.4265/bio.24.129DOI Listing
January 2020

Bactericidal Effects of Oxidative Stress Generated by EDTA-Fe and Hydrogen Peroxide.

Biocontrol Sci 2019 ;24(2):97-101

Graduate Institute of Engineering Science and Technology, National Kaohsiung University of Science and Technology.

Hydrogen peroxide is widely used as a disinfectant by generating oxidative stress. The chelate of ethylenediaminetetraacetic acid (EDTA) and ferrous iron (EDTA-Fe) was used to increase oxidative stress and bactericidal effects. The Escherichia coli (E. Read More

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http://dx.doi.org/10.4265/bio.24.97DOI Listing
November 2019
11 Reads

Genetic Identification of Dematiaceous Fungi Isolated from Washing Machine in Japan, and Considering of Fungal Removal Methods.

Biocontrol Sci 2019 ;24(2):89-96

Laboratory of Integrated Pest Management, FCG Research Institute, Inc.

In 2017, 2 household washing machines which were used at a house in Saitama prefecture were tested for fungal flora sampling. The fungi were identified in detail via genetic analysis of the ITS region. The number of fungi which were isolated were 8. Read More

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http://dx.doi.org/10.4265/bio.24.89DOI Listing
November 2019
15 Reads

Analysis of Antagonistic Potential of Secondary Metabolites and Organic Fractions of Trichoderma Species against Alternaria Alternata.

Biocontrol Sci 2019 ;24(2):81-88

Dept. of Botany, University of Education, Township Campus.

Role of Trichoderma species is well documented as antagonists as well as plant growth enhancers. Presently, the fungicidal potential of three Trichoderma species namely, T. koningii (FCBP769) , T. Read More

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http://dx.doi.org/10.4265/bio.24.81DOI Listing
November 2019
4 Reads

Antimycotic Activity of Seaweed Extracts( Caulerpa lentillifera and Eucheuma cottonii) against Two Genera of Marine Oomycetes, Lagenidium spp. and Haliphthoros spp.

Biocontrol Sci 2019 ;24(2):73-80

Borneo Marine Research Institute, Universiti Malaysia Sabah, Jalan UMS.

Fungal infection mostly caused by marine oomycetes had hindered crustacean production thus searching for natural and safe treatment is currently needed. Thus, this study was conducted to investigate the antimycotic effect of different seaweed extract against marine oomycetes (Lagenidium spp. and Haliphthoros spp) . Read More

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http://dx.doi.org/10.4265/bio.24.73DOI Listing
November 2019
1 Read

New Insight on Fumigation Action of Essential Oil, Commercial Fungicide and Low Oxygen Microenvironment on Museum Mold, Alternaria alternata.

Biocontrol Sci 2019 ;24(2):123-127

Graduate School of Conservation and Cultural Properties, Tokyo University of the Arts.

Fumigation has been the most convenient method in the field of pest control in museums. In this study, as fumigants, ethanol 70%, deltamethrin (commercial pesticide (CP) ) , essential oil (EO) from Pinus regida, and low oxygen microenvironment (0.1%, (LOM) ) were tested individually and jointly against museum fungal strain Alternaria alternata. Read More

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http://dx.doi.org/10.4265/bio.24.123DOI Listing
November 2019
13 Reads

A survey of Lasioderma serricorne (Fabricius) in Japanese Dental Clinics.

Biocontrol Sci 2019 ;24(2):117-121

Department of Oral Microbiology, Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama University.

This study was to survey the capturing rate in Japanese dental clinics of the Lasioderma serricorne (cigarette beetles) , and to evaluate the beetle's potential as a carrier for transmission of nosocomial pathogens. L. serricorne imagoes were captured in pheromone traps in 14 Japanese dental clinics in August and September 2012 and 2013, and their numbers recorded. Read More

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http://dx.doi.org/10.4265/bio.24.117DOI Listing
November 2019
12 Reads

In vitro Antifungal Activity of Japanese Folk Herb Extracts against Trichophyton rubrum.

Biocontrol Sci 2019 ;24(2):109-116

Department of Dermatology, Shimane University Faculty of Medicine.

Folk herbs are vital to the Japanese health care system, with some being used to treat fungal skin infections. We tested folk herbs used in traditional Japanese medicine for in vitro antifungal activity against Trichophyton rubrum, the most common pathogen in patients with superficial dermatitis. Acetone, ethanol, methanol, water, and acetic acid extracts from 15 species of Japanese folk herbs (Bi-wa, Aka-me-gashiwa, Ta-mushi-ba, Yomogi, Shi-so, Ku-ko, So-ba, Yama-momo, Kuro-mo-ji, Ichi-ji-ku, Kaki-no-ki, Kuwa-no-ki, Kusa-gi, Chimaki-zasa, and I-bukijya-kou-sou) were evaluated for fungal growth inhibition, as measured by absorbance. Read More

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http://dx.doi.org/10.4265/bio.24.109DOI Listing
November 2019
2 Reads

Comparison of Various Disinfectants on Bactericidal Activity Under Organic Matter Contaminated Environments.

Biocontrol Sci 2019 ;24(2):103-108

Department of Oral and Maxillofacial Surgery, National Defense Medical College.

The bactericidal activity of heated bio-shell calcium oxide (BiSCaO) powder suspension (pH 12.4) , hypochlorous acid (HClO; pH 6), sodium hypochlorite (NaClO; pH 8) , povidone-iodine (Isodine solution) , and chlorhexidine gluconate (Hibiscrub) under organic matter contaminated environments were compared for tests conducted on wood scraps and pig skin pieces that were incubated with normal bacterial flora (total viable counts and coliform bacteria) . The test results showed that BiSCaO suspension had higher bactericidal activity than HClO and NaClO. Read More

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http://dx.doi.org/10.4265/bio.24.103DOI Listing
November 2019
12 Reads

Low-concentration Sorbic Acid Promotes the Induction of Escherichia coli into a Viable but Nonculturable State.

Biocontrol Sci 2019 ;24(1):67-71

Faculty of Applied Bioscience, Kanagawa Institute of Technology.

 The effect of food preservatives and sanitizers at low concentrations on the induction of Escherichia coli into a viable but nonculturable (VBNC) state was investigated. When E. coli was incubated in physiological saline at 37℃, the viable cell count measured by plate counting was approximately 3-logs lower than that measured by flow cytometry after 30 days. Read More

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http://dx.doi.org/10.4265/bio.24.67DOI Listing
July 2019
1 Read

Construction of Its Evaluation System in Originally Designed Test-Chamber System and Sporicidal Activity of Aerosolized Hypochlorite Solution to Bacillus subtilis Spores.

Biocontrol Sci 2019 ;24(1):57-65

Engineering Division, Kajima Corporation.

 Effective spatial disinfection systems are required for human health care, public hygiene, and food and medicine manufacturing. Although some aerosolized disinfectants were already applied to its purpose, accurate evaluation systems were under constructed. In this study, the spatial sporicidal activity of aerosolized hypochlorite solution (AHS) to dormant cells, Bacillus subtilis spores, was evaluated by an originally designed chamber system. Read More

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http://dx.doi.org/10.4265/bio.24.57DOI Listing
July 2019
4 Reads

Solid-liquid Interface Screening SystemーApplication to the Screening of Antibiotic and Cytotoxic Substance-producing Fungi.

Biocontrol Sci 2019 ;24(1):47-56

Department of Life Science and Biotechnology, National Institute of Advanced Industrial Science andTechnology (AIST).

 A useful tool for the screening of fungi producing biologically active secondary metabolites such as antibiotics and cytotoxic substances has been developed. An agar plate-organic solvent interface cultivation (A/S-IFC) system, which comprised a hydrophobic organic solvent (upper phase) , a fungal mat (middle phase) and an agar plate (lower phase) , was constructed. The metabolite profiles were compared among the A/S-IFC, a traditional submerged cultivation (SmC) and an extractive liquid surface immobilization (Ext-LSI) system consisted of a hydrophobic solvent (upper phase) , a fungal cells-ballooned microspheres (middle phase) and a liquid medium (lower phase) , with high-performance liquid chromatography-photodiode array detector (HPLC-PDA) . Read More

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http://dx.doi.org/10.4265/bio.24.47DOI Listing
July 2019
5 Reads

Phylogenetic Characterization of Viable but-not-yet Cultured Legionella Groups Grown in Amoebic Cocultures: A Case Study using Various Cooling Tower Water Samples.

Biocontrol Sci 2019 ;24(1):39-45

Ibaraki University College of Agriculture.

 Legionella spp. exist naturally in association with amoeba in water environments and are known to be the etiological agent of a severe form of pneumonia. To detect diverse Legionella populations in cooling tower water systems, amoebic coculturing was performed for 15 water samples obtained from five different kinds of facilities in six geographically different locations. Read More

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http://dx.doi.org/10.4265/bio.24.39DOI Listing
July 2019
4 Reads

Rapid Single Cell Detection of Lactic Acid Bacteria in the Beer Using Bioluminescence Method.

Biocontrol Sci 2019 ;24(1):29-37

Group R&D Strategy Department, SAPPORO HOLDINGS LTD.

 In this study, we developed a system, known as MicroStar Rapid Microbe Detection System (RMDS) , to detect Lactobacillus brevis, which usually requires 2-4 days for examination by the conventional plate count procedure, for beer quality control using a bioluminescence method within 24 hr and also aimed to develop a technology to detect bacterial growth without the need for cultivation. We used a highly sensitive luminous reagent that increased the activity of the luciferin- luciferase reaction to 2.5×10 mol ATP/0. Read More

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https://www.jstage.jst.go.jp/article/bio/24/1/24_29/_article
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http://dx.doi.org/10.4265/bio.24.29DOI Listing
July 2019
20 Reads

Selection of Phages to Control Aeromonas hydrophila - An Infectious Agent in Striped Catfish.

Biocontrol Sci 2019 ;24(1):23-28

3Department of Aquatic Pathology, College of Aquaculture and Fisheries, Can Tho University.

Striped catfish (Pangasianodon hypophthalmus) farming in the Mekong Delta Vietnam (MKDVN) importantly contributes to national aquaculture export. Currently, however, diseases occur more frequently across the entire MKDVN region. One of the most common types is hemorrhagic septicemia caused by Aeromonas hydrophila. Read More

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http://dx.doi.org/10.4265/bio.24.23DOI Listing
July 2019
1 Read

Susceptibility of Oral Streptococci to Chlorhexidine and Cetylpyridinium Chloride.

Biocontrol Sci 2019 ;24(1):13-21

Department of Oral Microbiology, College of Dentistry, Research Institute of Oral Science, Gangneung-Wonju National University.

Although the most common bacteria in the supragingival plaque are Gram-positive streptococci, no extensive investigations have been conducted into the susceptibility of these species to chlorhexidine and cetylpyridinium chloride. Therefore, in this study, we investigated the susceptibility of 80 streptococcal strains in planktonic or biofilm states to these two antimicrobial agents. The minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC) of the planktonic streptococci were measured using the microdilution method, as were the minimum biofilm inhibitory concentration (MBIC) and minimum biofilm eradication concentration (MBEC) measured on streptococcal biofilms formed on 96-well plates. Read More

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http://dx.doi.org/10.4265/bio.24.13DOI Listing
July 2019
3 Reads

Identification, Growth Profile and Probiotic Properties of Autochthonous Intestinal Bacteria of Sagor catfish (Hexanematichthys sagor).

Biocontrol Sci 2019 ;24(1):1-11

Microbiology and Fish Disease Laboratory, Borneo Marine Research Institute, University Malaysia Sabah.

 The prevalence of antibiotic resistant bacteria in aquaculture has reached alarming proportions and intensified the search for microbe derived antimicrobial compounds. This study isolated bacteria from the intestine of Sagor catfish (Hexanematichthys sagor) and screened it for antagonistic properties. Five out of 334 bacterial isolates inhibited growth of fish pathogens. Read More

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http://dx.doi.org/10.4265/bio.24.1DOI Listing
July 2019
2 Reads

Effects of Fragrance Ingredients on the Uptake of Legionella pneumophila into Acanthamoeba castellanii.

Biocontrol Sci 2018 ;23(4):241-244

Department of Microbiology, School of Pharmaceutical Sciences, Josai University.

Acanthamoeba castellanii, a ubiquitous organism in water environments, is pathogenic toward humans and also is a host for bacteria of the genus Legionella, a causative agent of legionellosis. Fragrance ingredients were investigated for their antibacterial activity against planktonic Legionella pneumophila, amoebicidal activity against A. castellanii, and inhibitory effect against L. Read More

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http://dx.doi.org/10.4265/bio.23.241DOI Listing
April 2019
7 Reads

Evaluation of the Novel Dry Sheet Culture Method for the Enumeration of Enterobacteriaceae.

Biocontrol Sci 2018 ;23(4):235-240

Yokohama Research Center, JNC Corporation.

MC-Media Pad EB (MMP-EB) , a novel sheet culture method for the enumeration of Enterobacteriaceae, has been evaluated. When both inclusivity and exclusivity of MMP-EB were assessed using 104 microbes including 51 Enterobacteriaceae strains, all tested Enterobacteriaceae strains grew and formed obvious red-colored colonies and all tested non-Enterobacteriaceae strains were shown different appearance from Enterobacteriaceae strains. For the comparison study of the method, MMP-EB was compared with violet red bile glucose agar (VRBG) according to ISO 21528-2:2017 and Petrifilm Enterobacteriaceae Count Plate (Petrifilm EB) method using 100 naturally contaminated food samples. Read More

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https://www.jstage.jst.go.jp/article/bio/23/4/23_235/_articl
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http://dx.doi.org/10.4265/bio.23.235DOI Listing
April 2019
39 Reads

Evaluation of a Novel Chromogenic Selective Medium for the Improved Detection of Campylobacter from Stool Samples.

Biocontrol Sci 2018 ;23(4):229-234

BML Inc.

BD mCCDA Clear-HT (CCHT; Nippon Becton Dickinson Company, Ltd.) , a novel chromogenic selective medium was evaluated for its superior capacity to isolate Campylobacter jejuni/ coli. When CCHT was assessed using 142 microbes including 42 Campylobacter jejuni/ coli strains, all Campylobacter strains were found to form purple-colored colonies on CCHT whereas all the other microbes failed to grow. Read More

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http://dx.doi.org/10.4265/bio.23.229DOI Listing
April 2019
1 Read

Application of Potassium Myristate as an Antifungal and a Dough Improving in Bread-Making.

Biocontrol Sci 2018 ;23(4):223-227

Faculty of Environmental Engineering, University of Kitakyushu.

Surface-acting agents are used as bread improvers in bread making to increase the specific loaf volume. We focused on the use of fatty acid salts as surface acting agents and new food additives. Fatty acid salts are the main components of soaps and display antibacterial activity. Read More

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http://dx.doi.org/10.4265/bio.23.223DOI Listing
April 2019
1 Read

Effectiveness of Airborne Fungi Removal by using a HEPA Air Purifier Fan in Houses.

Biocontrol Sci 2018 ;23(4):215-221

Laboratory of Integrated Pest Management, FCG Research Institute, Inc.

Few studies have evaluated the performance of air purifiers in removing airborne fungi in houses. Here, we evaluated the ability of a HEPA air purifier fan to remove airborne fungi in six houses in Japan. In each house, the number of airborne fungi decreased more rapidly when the air purifier fan was on (test measurement) than when it was off (control) , demonstrating its ability to decrease the fungal concentration. Read More

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https://www.jstage.jst.go.jp/article/bio/23/4/23_215/_articl
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http://dx.doi.org/10.4265/bio.23.215DOI Listing
April 2019
13 Reads

Characteristics of Staphylococcal Enterotoxin A Production and Growth of Staphylococcus aureus in Shaking and Stationary Cultures.

Biocontrol Sci 2018 ;23(4):207-214

Laboratory of Veterinary Public Health, Faculty of Agriculture, Tokyo University of Agriculture and technology.

Staphylococcal food poisoning, which is still a serious health problem worldwide, is caused by staphylococcal enterotoxin (SE) . Among many types of SE, staphylococcal enterotoxin type A (SEA) is known to be the most responsible for staphylococcal food poisoning. Production by SEA-producing strains in shaking culture has been studied by many investigators, whereas the kinetical differences between shaking and stationary cultures have not been studied intensively. Read More

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http://dx.doi.org/10.4265/bio.23.207DOI Listing
April 2019
1 Read

Viability of Chlorine-injured Escherichia Coli O157:H7 on Fresh-cut Cabbage during Cold Storage in High CO Atmospheres.

Biocontrol Sci 2018 ;23(4):199-206

Faculty of Biology-Oriented Science and Technology, Kindai University.

Viability of chlorine-injured E. coli O157:H7 inoculated onto shredded cabbage was evaluated during storage in air or high CO controlled atmospheres (CA) of 5%, 10%, and 15% at 10℃ and in a modified atmosphere packaging (MAP) at 5℃ and 10℃. When shredded cabbage was inoculated with chlorine-injured E. Read More

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http://dx.doi.org/10.4265/bio.23.199DOI Listing
April 2019
1 Read

Molecular and Biological Differences Among Ochroconis Strains Collected from Indoor and Outdoor Environments.

Biocontrol Sci 2018 ;23(4):187-198

Department of Microbiology, Osaka Institute of Public Health.

The molecular, morphological, and physiological characters of 55 Ochroconis strains collected from indoor and outdoor environments were studied. In Japan, Ochroconis species are often found in indoor detergent-rich environments, such as bathrooms and washing machines, and the predominant species have been identified as O. humicola, similar to that in other Asian and European countries. Read More

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http://dx.doi.org/10.4265/bio.23.187DOI Listing
April 2019
1 Read

Fungicidal Effects of Ultraviolet Light (254 nm) Irradiation on Contaminated Museum Packing and Storing Materials.

Biocontrol Sci 2018 ;23(4):177-186

Graduate School of Conservation and Cultural Properties, Tokyo University of the Art.

In storage of modern museums, collections are packed and stored with acid-free paper-based materials for keeping safe and stable conditions. Direct contact of fungal contaminated packing and storing materials with the collections is concerned about expanding of infection in storage facilities. In this study, fungicidal effects of UV light irradiation on the materials such as archival board and Japanese tissue paper contaminated with Penicilliun commune and Chaetomium globosum were tested. Read More

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https://www.jstage.jst.go.jp/article/bio/23/4/23_177/_articl
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http://dx.doi.org/10.4265/bio.23.177DOI Listing
April 2019
2 Reads

Influence of Gas Temperature in Atmospheric Non-Equilibrium Plasma on Bactericidal Effect.

Biocontrol Sci 2018 ;23(4):167-175

FIRST, Tokyo Institute of Technology.

In this study, the relationship between plasma gas temperature and the bactericidal effects on five of bacteria (Escherichia coli, Pseudomonas aeruginosa, Staphylococcus aureus, Enterococcus faecalis and Bacillus cereus (spore)) in liquid was investigated using a temperature-controllable plasma source. We determined that the bactericidal ability improved as the plasma gas temperature increased. Specifically, the bactericidal ability on E. Read More

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http://dx.doi.org/10.4265/bio.23.167DOI Listing
April 2019
11 Reads

Sorbitol Minimizes Calcium Carbonate Scale Generation While Maintaining the Disinfection Effect of Heated Scallop-Shell Powder for Fresh Produce.

Biocontrol Sci 2018 ;23(4):157-165

Faculty of Applied Bioscience, Kanagawa Institute of Technology.

Scallop shells subjected to heat treatment exhibit antimicrobial activity, and heated scallop-shell powder (HSSP) has recently been reported to be effective for disinfecting food. However, because the main component of these shells is calcium oxide, there is a problem that scales of calcium carbonate (CaCO) become established on the surface of equipment used for food processing. In this study, we thus investigated whether the addition of sugar to HSSP slurry suppressed CaCO scale generation and whether the sugar-supplemented HSSP could be applied to the disinfection and preservation of fresh lettuce. Read More

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http://dx.doi.org/10.4265/bio.23.157DOI Listing
April 2019
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Antibacterial Properties of Silicone Membranes after a Simple Two-Step Immersion Process in Iodine and Silver Nitrate Solutions.

Biocontrol Sci 2018 ;23(3):97-105

Faculty of Applied Bioscience, Kanagawa Institute of Technology.

 Silicone is widely used in packing materials, medical equipment, and separation membranes. Since microbial cells easily adhere to the surface of silicone materials and form biofilms, techniques for incorporating antimicrobial activity into silicone materials are in high demand. This study describes the preparation of silver (Ag)/silicone composite membranes through a simple two-step immersion process, utilizing an iodine solution followed by a silver nitrate solution at room temperature. Read More

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http://dx.doi.org/10.4265/bio.23.97DOI Listing
December 2018
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Control of Aliivibrio fischeri Luminescence and Decrease in Bioluminescence by Fungicides.

Biocontrol Sci 2018 ;23(3):85-96

Faculty of Environment Engineering, University of Kitakyushu.

Studies have reported that cell density, ultraviolet (UV) irradiation, and redox reactions, can induce bioluminescence in bacteria. Conversely, the relationship between seawater components and luminescence is not well understood. The efficacy of marine luminous bacteria as biosensors, and their reactivity to fungicides (for example postharvest pesticides) are also unknown. Read More

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http://dx.doi.org/10.4265/bio.23.85DOI Listing
December 2018
39 Reads

Discovery of Terbinafine Low Susceptibility Trichophyton rubrum strain in Japan.

Biocontrol Sci 2018 ;23(3):151-154

Graduate School of Health Care Science, Bunkyo Gakuin University.

This is the first confirmed report of terbinafine low susceptibility Trichophyton rubrum, BGUTR13, in Japan collected from the whole sole of the elderly over 65s with cotton swab sampling method at the special nursing care-home in 2016. We revealed BGUTR13 showed low susceptibility (MIC, >128 μg/mL) against terbinafine. But, BGUTR13 exhibited normal susceptibility to itraconazole, did not showed cross-resistance. Read More

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http://dx.doi.org/10.4265/bio.23.151DOI Listing
December 2018
3 Reads

Eligibility of Feline Calicivirus for a Surrogate of Human Norovirus in Comparison with Murine Norovirus, Poliovirus and Coxsackievirus.

Biocontrol Sci 2018 ;23(3):145-149

Department of Virology, Graduate School of Biomedical and Health Sciences, Hiroshima University.

Feline calicivirus (FCV) is frequently used as a surrogate of human norovirus. We investigated eligibility of FCV for anti-viral assay by investigating the stability of infectivity and pH sensitivity in comparison with other viruses. We found that infectivities of FCV and murine norovirus (MNV) are relatively unstable in infected cells compared with those of coxsackievirus (CoV) and poliovirus (PoV) , suggesting that FCV and MNV have vulnerability. Read More

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http://dx.doi.org/10.4265/bio.23.145DOI Listing
December 2018
27 Reads