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Bioresour Technol 2022 May 20:127358. Epub 2022 May 20.

Institute of Sustainable Processes, University of Valladolid, Dr. Mergelina, s/n, 47011, Valladolid, Spain; Department of Chemical Engineering and Environmental Technology, School of Industrial Engineering, University of Valladolid, Dr. Mergelina, s/n, 47011 Valladolid, Spain. Electronic address:

This study proposed a lactate-based two-stage anaerobic digestion (AD) process to enhance bioenergy production rate from food waste (FW) and investigated the effect of inoculum addition and culture pH on hydrolysis-acidogenesis and further methanization. A series of batch fermentations were performed with an enriched lactate-producing consortium and without inoculum addition under controlled (5.7) and uncontrolled pH (initial 6. Read More

Biotechnol Adv 2022 May 20:107988. Epub 2022 May 20.

Université libre de Bruxelles (ULB), École polytechnique de Bruxelles - BioMatter unit, Avenue F.D. Roosevelt, 50 - CP 165/61, 1050 Brussels, Belgium.

As a source of several valuable products, photosynthetic microorganisms (microalgae and cyanobacteria) have many applications in biomedical, electrochemical, and urban-space fields. Microalgal and cyanobacterial (photoautotrophs) implementations have been the subject matter of several reviews, which mainly focused on exploring effective methods of their harvesting, optimal cultivation conditions, energy conversion efficiency, and new strategies for microalgal health-promoting compound recovery. This review highlights recent investigations into biomedical, urban, environmental, and electrical engineering microalgae and cyanobacteria applications over the last seven years. Read More

Int J Biol Macromol 2022 May 20. Epub 2022 May 20.

Institute of Microbial Pharmaceuticals, College of Life and Health Sciences, Northeastern University, Shenyang 110169, PR China. Electronic address:

Guava is a popular fruit consumed worldwide with beneficial effects in regulation of glucose and lipid metabolism. Although polysaccharides are a major phytochemical component of guava, to date, the alleviative effects of polysaccharides from the guava fruit against die-induced obesity remain unclear. The relationship between the anti-obesity effects of guava polysaccharide (GP) and gut microbiota is unknown. Read More

Enzyme Microb Technol 2022 May 6;159:110057. Epub 2022 May 6.

State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, Jiangsu 214122, China; International Joint Laboratory of Food Science and Safety, Jiangnan University, Wuxi, Jiangsu 214122, China.

Maltoheptaose (G7) is one of the mixtures of maltodextrin widely used in the food, pharmaceutical, and cosmetics industries. A genetically engineered strain, which simultaneously expressed cyclodextrin glucanotransferase (CGTase) from Gracilibacillus alcaliphilus SK51.001 and cyclomaltodextrinase (CDase) from Bacillus sphaericus E-244, two enzymes, was constructed by cloning the above two genes into a plasmid and transformed into the host Escherichia coli BL21(DE3) (E. Read More

Aquat Toxicol 2022 May 17;248:106200. Epub 2022 May 17.

Department of Biosciences, University of Milan, Via Celoria 26, Milan 20133, Italy.

Despite the pollution induced by plastics become a well-known and documented problem, bringing many countries to adopt restrictions about their production, commercialization and use, the impact of another emerging category of synthetic polymers, represented by the Water-Soluble Polymers (WSPs), also known as "liquid plastics", is overlooked by scientific community. WSPs are produced in large quantities and used in a wide plethora of applications such as food packaging, pharmaceuticals and personal care products, cosmetics and detergents, with a consequent continuous release in the environment. The aim of this study was the investigation of the possible toxicity induced by polyvinyl alcohol (PVA), one of the main produced and used WSPs, on two freshwater model organisms, the crustacean Daphnia magna and the teleost Danio rerio (zebrafish). Read More