200 results match your criteria [11] coffea

Organic Farming Practices and Shade Trees Reduce Pest Infestations in Robusta Coffee Systems in Amazonia.

Life (Basel) 2021 Apr 30;11(5). Epub 2021 Apr 30.

Plants and Pathogens Group, Research Institute Land Nature and Environment, Geneva School of Engineering, Architecture and Landscape (HEPIA), HES-SO University of Applied Sciences and Arts Western Switzerland, 1254 Jussy, Switzerland.

Coffee agroforestry systems could reconcile agricultural and environmental objectives. While pests and diseases can reduce yield, their interactions with shade and nutrition have been rarely researched, and are particularly lacking in perennial systems. We hypothesized that intermediate shade levels could reduce coffee pests while excess shade could favor fungal diseases. Read More

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Green () from Lampung province effect toward free radicals in chickens infected with bacteria.

Open Vet J 2021 Jan-Mar;11(1):61-69. Epub 2021 Jan 27.

Laboratory of Pharmacology, Faculty of Veterinary Medicine, Brawijaya University, Malang, Indonesia.

Background: Foodborne diseases are caused by acquired pathogenic bacteria such as . It causes an intestinal imbalance and the microbial toxins found in the gastrointestinal tract induce symptoms such as diarrhea. Coffee contains active ingredients such as antioxidants and is used as an anti-inflammatory agent by reducing pro-inflammatory cytokine levels in the body. Read More

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January 2021

Effect of glyphosate and P on the growth and nutrition of Coffea arabica cultivars and on weed control.

Sci Rep 2021 Apr 14;11(1):8095. Epub 2021 Apr 14.

School of Agricultural and Veterinarian Sciences, São Paulo State University (UNESP), Jaboticabal, São Paulo, 14884-900, Brazil.

The effect of the phosphorus (P) and glyphosate interactions on the growth and nutrition of Arabica coffee cultivars (Coffea arabica), as well as on the control of Ipomoea grandifolia and Urochloa decumbens, was evaluated. Catuaí-Amarelo/IAC-62 and Catuaí-Vermelho/IAC-144 cultivars did not show glyphosate poisoning, regardless of the soil P content. However, glyphosate reduced the growth of Catuaí-Vermelho/IAC-144. Read More

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The absence of the caffeine synthase gene is involved in the naturally decaffeinated status of Coffea humblotiana, a wild species from Comoro archipelago.

Sci Rep 2021 Apr 14;11(1):8119. Epub 2021 Apr 14.

Nestle Research-Plant Science Research Unit, BP 49716, 37097, Tours Cedex 2, France.

Caffeine is the most consumed alkaloid stimulant in the world. It is synthesized through the activity of three known N-methyltransferase proteins. Here we are reporting on the 422-Mb chromosome-level assembly of the Coffea humblotiana genome, a wild and endangered, naturally caffeine-free, species from the Comoro archipelago. Read More

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New species and records of Trichoderma isolated as mycoparasites and endophytes from cultivated and wild coffee in Africa.

Sci Rep 2021 Mar 11;11(1):5671. Epub 2021 Mar 11.

Departamento de Fitopatologia, Universidade Federal de Viçosa, Viçosa, MG, 36570-900, Brazil.

A survey for species of the genus Trichoderma occurring as endophytes of Coffea, and as mycoparasites of coffee rusts (Hemileia), was undertaken in Africa; concentrating on Cameroon and Ethiopia. Ninety-four isolates of Trichoderma were obtained during this study: 76 as endophytes of healthy leaves, stems and berries and, 18 directly from colonized rust pustules. A phylogenetic analysis of all isolates used a combination of three genes: translation elongation factor-1α (tef1), rpb2 and cal for selected isolates. Read More

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Identification of Phytochemical Compounds in Whole Coffee Cherries and Their Extracts by LC-MS/MS.

J Agric Food Chem 2021 Mar 10;69(11):3430-3438. Epub 2021 Mar 10.

VDF FutureCeuticals, Inc, Momence, Illinois 60954, United States.

The current work assessed the phytochemical contents of Arabica whole coffee cherry (WCC) and its two commercially available extracts: a minimum 40% chlorogenic acid (CGA; WCCE-1) and 70% caffeine (WCCE-2). Mass spectrometry analyses tentatively identified 219 phytochemicals in the three coffee samples, which is, so far, the largest number of identifications in a single study. A new group of CGA derivative namely caffeoylvaleroylquinic acid (CVQA) was identified in the three samples. Read More

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A coffee berry borer (Hypothenemus hampei) genome assembly reveals a reduced chemosensory receptor gene repertoire and male-specific genome sequences.

Sci Rep 2021 Mar 1;11(1):4900. Epub 2021 Mar 1.

National Coffee Research Center-CENICAFE, Manizales, Colombia.

Coffee berry borer-CBB (Hypothenemus hampei) is a globally important economic pest of coffee (Coffea spp.). Despite current insect control methods for managing CBB, development of future control strategies requires a better understanding of its biology and interaction with its host plant. Read More

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Effectiveness of Single Nucleotide Polymorphism Markers in Genotyping Germplasm Collections of Using KASP Assay.

Front Plant Sci 2020 25;11:612593. Epub 2021 Jan 25.

Sustainable Perennial Crops Laboratory, Agricultural Research Service, United States Department of Agriculture, Beltsville, MD, United States.

Accurate genotype identification is imperative for effective use of L. germplasm to breed new varieties with tolerance or resistance to biotic and abiotic stresses (including moisture stress and pest and disease stresses such as coffee berry borer and rust) and for high yield and improved cup quality. The present study validated 192 published single nucleotide polymorphism (SNP) markers and selected a panel of 120 loci to examine parentage and labeling errors, genetic diversity, and population structure in 400 accessions assembled from different coffee-producing countries and planted in a field gene bank in Ghana. Read More

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January 2021

First Report of Colletotrichum siamense Causing Leaf Spot on Alocasia macrorrhiza in China.

Plant Dis 2021 Jan 12. Epub 2021 Jan 12.

Guangxi Agricultural Vocation-Technical College, Department of Biotechnology, Nanning, Guangxi, China;

Alocasia macrorrhiza (L.) Schott, known as Alocasia is found in the Araceae, and is widely planted in southern China for its ornamental and medicinal value. This plant has a wide range of pharmacological effects, and has potential anti-tumor activity (Lei et al. Read More

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January 2021

New ent-kaurane diterpenes from the roasted arabica coffee beans and molecular docking to α-glucosidase.

Food Chem 2021 May 7;345:128823. Epub 2020 Dec 7.

State Key Laboratory of Phytochemistry and Plant Resources in West China, Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650201, Yunnan, People's Republic of China; University of Chinese Academy of Sciences, Beijing 100049, People's Republic of China. Electronic address:

Ten new (1-10) and five known (11-15) ent-kaurane diterpene derivatives were identified from the roasted beans of coffea arabica. Their structures were established by extensive spectroscopic analysis including 1D, 2D NMR (HSQC, HMBC, COSY, and ROESY), HRESIMS, and X-ray diffraction analysis. Compounds 1-3 were three types of rearranged ent-kaurane diterpenes, and compounds 4 and 5 were diterpene esters with a rare 6-hydroxyhexanoyl at C-17. Read More

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Coffee Berry Borer (), a Global Pest of Coffee: Perspectives from Historical and Recent Invasions, and Future Priorities.

Insects 2020 Dec 12;11(12). Epub 2020 Dec 12.

Department of Agroenvironmental Sciences, Center for Excellence in Quarantine & Invasive Species, Agricultural Experimental Station-Rio Piedras, University of Puerto Rico-Mayaguez, 1193 Calle Guayacan, San Juan, PR 00926-1118, USA.

Coffee berry borer ( (Ferrari), CBB) has invaded nearly every coffee-producing country in the world, and it is commonly recognized as the most damaging insect pest of coffee. While research has been conducted on this pest in individual coffee-growing regions, new insights may be gained by comparing and contrasting patterns of invasion and response across its global distribution. In this review, we explore the existing literature and focus on common themes in the invasion biology of CBB by examining (1) how it was introduced into each particular region and the response to its invasion, (2) flight activity and infestation patterns, (3) economic impacts, and (4) management strategies. Read More

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December 2020

Determination of organochlorine and organophosphorus residues in surface waters from the coffee zone in Quindío, Colombia.

J Environ Sci Health B 2020 8;55(11):968-973. Epub 2020 Sep 8.

Grupo de Investigación en Enfermedades Cardiovasculares y Metabólicas-GECAVYME, Facultad de Ciencias de la Salud, Universidad del Quindío, Armenia, Colombia.

The aim of this study was to identify organochlorine (OC) and organophosphorus (OP) pesticides levels in water samples collected in secondary water bodies in agricultural area planted with coffee and plantain. A descriptive cross-sectional study was carried out. A validated method for microwave-assisted extraction and gas chromatography with electron microcapture detector (MAE-GC-μECD) was used to analyze pesticide residues in samples. Read More

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January 2021

Elevated Temperatures Impose Transcriptional Constraints and Elicit Intraspecific Differences Between Coffee Genotypes.

Front Plant Sci 2020 21;11:1113. Epub 2020 Jul 21.

Plant Physiology Sector, Biology Department, Universidade Federal de Lavras (UFLA), Lavras, Brazil.

The projected impact of global warming on coffee production may require the heat-adapted genotypes in the next decades. To identify cellular strategies in response to warmer temperatures, we compared the effect of elevated temperature on two commercial L. genotypes exploring leaf physiology, transcriptome, and carbohydrate/protein composition. Read More

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Development of a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for characterizing caffeine, methylliberine, and theacrine pharmacokinetics in humans.

J Chromatogr B Analyt Technol Biomed Life Sci 2020 Oct 2;1155:122278. Epub 2020 Aug 2.

The National Center for Natural Products Research, University of Mississippi, Oxford, MS, USA; NPI, LLC, Oxford, MS, USA. Electronic address:

Coffea liberica possesses stimulant properties without accumulating the methylxanthine caffeine. The basis for this peculiar observation is that methylurates (e.g. Read More

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October 2020

Contents of key bioactive and detrimental compounds in health performance coffees compared to conventional types of coffees sold in the United States market.

Food Funct 2020 Sep;11(9):7561-7575

Food Chemistry and Bioactivity Laboratory & Coffee Research Core - NUPECAFÉ, NutritionInstitute, Federal University of Rio de Janeiro, Ilha do Fundão, CCS bloco J, 21941-902, Rio de Janeiro, RJ, Brazil.

The United States is the largest coffee consuming country worldwide. Recently, in addition to cup quality, the focus on health promotion has increased significantly in the country, with launching of many brands with health claims, mainly highlighting the antioxidative and stimulating properties of the beverage. On the other hand, mycotoxins and, to a lesser extent, acrylamide, have raised concerns among consumers and health authorities. Read More

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September 2020

16-O-Methylated diterpenes in green Coffea arabica: ultra-high-performance liquid chromatography-tandem mass spectrometry method optimization and validation.

J Mass Spectrom 2020 Nov 6;55(11):e4636. Epub 2020 Aug 6.

illycaffè SpA, Trieste, Italy.

Coffee diterpenes are the main constituents of the coffee oil unsaponifiable fraction. The three most important diterpenes are cafestol, kahweol, and 16-O-methylcafestol (16-OMC), and they are produced, except for cafestol, only by plants of the Coffea genus. Recently, in addition to these three major diterpenes, another 16-O-methylated diterpene (16-O-methylkahweol: 16-OMK) has been identified and quantified, for the first time, in Robusta coffee. Read More

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November 2020

Resilient and Sensitive Key Points of the Photosynthetic Machinery of spp. to the Single and Superimposed Exposure to Severe Drought and Heat Stresses.

Front Plant Sci 2020 9;11:1049. Epub 2020 Jul 9.

PlantStress & Biodiversity Lab, Centro de Estudos Florestais (CEF), Dept. Recursos Naturais, Ambiente e Território (DRAT), Instituto Superior de Agronomia (ISA), Universidade de Lisboa (ULisboa), Lisbon, Portugal.

This study unveils the single and combined drought and heat impacts on the photosynthetic performance of cv. Icatu and cv. Conilon Clone 153 (CL153). Read More

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The coffee agroecosystem: bio-economic analysis of coffee berry borer control (Hypothenemus hampei).

Sci Rep 2020 07 23;10(1):12262. Epub 2020 Jul 23.

Agenzia nazionale per le nuove tecnologie, l'energia e lo sviluppo economico sostenibile (ENEA), Centro Ricerche Casaccia, Via Anguillarese 301, 00123, Rome, Italy.

Coffee, after petroleum, is the most valuable commodity globally in terms of total value (harvest to coffee cup). Here, our bioeconomic analysis considers the multitude of factors that influence coffee production. The system model used in the analysis incorporates realistic field models based on considerable new field data and models for coffee plant growth and development, the coffee/coffee berry borer (CBB) dynamics in response to coffee berry production and the role of the CBB parasitoids and their interactions in control of CBB. Read More

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Evaluation of Exclusion Netting for Coffee Berry Borer () Management.

Insects 2020 Jun 11;11(6). Epub 2020 Jun 11.

Daniel K. Inouye US Pacific Basin Agricultural Research Center, United States Department of Agriculture-Agricultural Research Service, Hilo, HI 96720, USA.

Exclusion nets are increasingly being used to protect a variety of agricultural crops from insect pests as a sustainable alternative to chemical controls. We examined the efficacy of exclusion nets in controlling the world's most damaging insect pest of coffee, (coffee berry borer), on two small-scale coffee farms on Hawai'i Island. We recorded microclimate data, fruit infestation, population per fruit, sex ratio, mortality by , coffee yield and quality in four paired exclusion and control (un-netted) plots on both farms. Read More

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Lost and Found: and , the Forgotten Coffee Crop Species of West Africa.

Front Plant Sci 2020 19;11:616. Epub 2020 May 19.

Department of Agriculture, Health and Environment, Faculty of Engineering and Science, Natural Resources Institute, University of Greenwich, Medway, United Kingdom.

(Arabica) and (robusta) almost entirely dominate global coffee production. Various challenges at the production (farm) level, including the increasing prevalence and severity of disease and pests and climate change, indicate that the coffee crop portfolio needs to be substantially diversified in order to ensure resilience and sustainability. In this study, we use a multidisciplinary approach (herbarium and literature review, fieldwork and DNA sequencing) to elucidate the identity, whereabouts, and potential attributes, of two poorly known coffee crop species: and . Read More

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Modelling the effect of temperature on the biology and demographic parameters of the African coffee white stem borer, Monochamus leuconotus (Pascoe) (Coleoptera: Cerambycidae).

J Therm Biol 2020 Apr 14;89:102534. Epub 2020 Feb 14.

International Centre of Insect Physiology and Ecology, P.O. Box 30772-00100, Nairobi, Kenya; CIRAD, UPR Bioagresseurs, P.O. Box 30677-00100, Nairobi, Kenya; Bioagresseurs, Univ Montpellier, CIRAD, Montpellier, France.

The African coffee white stem borer Monochamus leuconotus (Pascoe) (Coleoptera: Cerambycidae) is a destructive insect pest of Arabica coffee trees in African highlands. Our study aims to provide information on the pest biology as influenced by temperature, determine thermal thresholds, and provide life table parameters for M. leuconotus reared in the laboratory. Read More

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Transfer kinetics of labeled aroma compounds from liquid media into coffee beans during simulated wet processing conditions.

Food Chem 2020 Aug 9;322:126779. Epub 2020 Apr 9.

CIRAD, UMR Qualisud, F 34398 Montpellier, France; Qualisud, Univ Montpellier, CIRAD, Montpellier SupAgro, Univ d'Avignon, Univ de La Réunion, Montpellier, France.

The transfer kinetics of three labelled compounds (butanal, 2-phenyethanol, isoamyl acetate) was studied from a liquid medium into the coffee beans during simulated wet processing using four media (M) (M1: contained dehulled beans, M2: contained demucilaginated beans, M3: contained depulped beans, M4: contained depulped beans with yeast). Trials were carried out at 25 °C, under agitation and for five time periods (0, 6, 12, 24 and 48 h), and then the labelled volatiles were analyzed by SPME-GC-MS. The three labelled molecules were transferred into the coffee beans with different mass transfer rates; reaching at 12hrs in the M4, 0. Read More

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Primary Metabolism Is Distinctly Modulated by Plant Resistance Inducers in Leaves Infected by .

Front Plant Sci 2020 20;11:309. Epub 2020 Mar 20.

Centro de Investigação das Ferrugens do Cafeeiro, Instituto Superior de Agronomia, Universidade de Lisboa, Lisbon, Portugal.

Epidemics of coffee leaf rust (CLR) leads to great yield losses and huge depreciation of coffee marketing values, if no control measures are applied. Societal expectations of a more sustainable coffee production are increasingly imposing the replacement of fungicide treatments by alternative solutions. A protection strategy is to take advantage of the plant immune system by eliciting constitutive defenses. Read More

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Contrasting Patterns of Functional Diversity in Coffee Root Fungal Communities Associated with Organic and Conventionally Managed Fields.

Appl Environ Microbiol 2020 05 19;86(11). Epub 2020 May 19.

Department of Biological Sciences, North Dakota State University, Fargo, North Dakota, USA

The structure and function of fungal communities in the coffee rhizosphere are influenced by crop environment. Because coffee can be grown along a management continuum from conventional application of pesticides and fertilizers in full sun to organic management in a shaded understory, we used coffee fields to hold host constant while comparing rhizosphere fungal communities under markedly different environmental conditions with regard to shade and inputs. We characterized the shade and soil environment in 25 fields under conventional, organic, or transitional management in two regions of Costa Rica. Read More

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Autotetraploid and Auto-Alloctaploid From Chromosome Set Doubling: New Germplasms for .

Front Plant Sci 2020 4;11:154. Epub 2020 Mar 4.

Laboratório de Citogenética e Citometria, Departamento de Biologia Geral, Centro de Ciências Biológicas e da Saúde, Universidade Federal de Viçosa, Viçosa, Brazil.

Polyploidy is more than two chromosomal sets per nucleus, as the allotetraploid . Due to allotetraploidy, shows different phenotypes compare to diploid species, highlighting by beverage quality produced from its grains. Looking for the possibility of new phenotypes coupled with economic feature, considerable progress since 60's was reached for synthetic chromosome set doubling (CSD) , involving especially the antitubulin compounds, biological material, and used tissue culture pathway as the indirect somatic embryogenesis (ISE). Read More

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Spent coffee (Coffea arabica L.) grounds promote satiety and attenuate energy intake: A pilot study.

J Food Biochem 2020 06 18;44(6):e13204. Epub 2020 Mar 18.

Institute of Food Science Research (CIAL, UAM-CSIC), Universidad Autónoma de Madrid, Madrid, Spain.

We evaluated the effects of acute intake of biscuits (B) containing either spent coffee grounds (SCG), (added with fructooligosaccharides; SC-FOS) or SCG antioxidant dietary fiber (SCF), on satiety, energy intake as well as gastrointestinal tolerance of healthy overweight volunteers. The addition of SCG and SCF to the biscuits (SC-FOS-B and SCF-B) increased their protein (11.4% and 12. Read More

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Effects of regular and decaffeinated roasted coffee (Coffea arabica and Coffea canephora) extracts and bioactive compounds on in vitro probiotic bacterial growth.

Food Funct 2020 Feb;11(2):1410-1424

Food Chemistry and Bioactivity Laboratory & Coffee Research Core (NUPECAFÉ), Nutrition Institute, Federal University of Rio de Janeiro (UFRJ), Brazil.

The aim of this study was to investigate the effects of coffee species, roast degree and decaffeination on in vitro probiotic bacterial growth, and to identify the major coffee compounds responsible for such effects. Six C. arabica and C. Read More

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February 2020

Machine learning algorithms for forecasting the incidence of Coffea arabica pests and diseases.

Int J Biometeorol 2020 Apr 7;64(4):671-688. Epub 2020 Jan 7.

Science and Technology of Sul of Minas - Campus of Muzambinho, IFSULDEMINAS - Federal Institute of Education, Muzambinho, Brazil.

Disease and pest alert models are able to generate information for agrochemical applications only when needed, reducing costs and environmental impacts. With machine learning algorithms, it is possible to develop models to be used in disease and pest warning systems as a function of the weather in order to improve the efficiency of chemical control of pests of the coffee tree. Thus, we correlated the infection rates with the weather variables and also calibrated and tested machine learning algorithms to predict the incidence of coffee rust, cercospora, coffee miner, and coffee borer. Read More

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Genome-wide identification, characterization and phylogenetic analysis of Dicer-like (DCL) gene family in Coffea arabica.

Bioinformation 2019 11;15(11):824-831. Epub 2019 Dec 11.

Bioinformatics Laboratory, Department of Statistics, University of Rajshahi, Rajshahi-6205, Bangladesh.

A fine-tuned RNA interference (RNAi) pathway has been developed by plants to restrain distinct biological processes in various life stages including stress responses, development and maintenance of genome integrity. The Dicer-Like (DCL) proteins starts the RNAi process by producing complementary double-stranded RNAs (dsRNAs) into small RNA duplexes (21-24 nucleotides) trigger the RNAi process. Nevertheless, these members of RNAi pathway have not been deciphered in one of the most economically important plant coffee (). Read More

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December 2019

, and Extracts Modulate the Insulin Receptor Expression and Improve Hepatic Steatosis in NAFLD Patients: A Pilot Clinical Trial.

Nutrients 2019 Dec 16;11(12). Epub 2019 Dec 16.

Gastroenterology Unit, Department of Clinical Medicine and Surgery, University of Naples "Federico II", 80131 Naples, Italy.

Non-alcoholic fatty liver disease (NAFLD) is associated with insulin resistance and diabetes. A reduction in insulin receptor (IR) expression has been reported in these patients. The aims of this study were to evaluate the effects of a mixture of plant extracts consisting of , and decaffeinated green coffee by on the improvement of glycaemic profile, through the modulation of IR levels, and of hepatic steatosis in NAFLD patients. Read More

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December 2019