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https://www.readbyqxmd.com/read/28813779/dna-profiling-of-leuconostoc-citreum-strains-in-fermented-foods-by-repetitive-element-polymerase-chain-reaction
#1
Jasmine Kaur, Anshul Sharma, Sulhee Lee, Young-Seo Park
To identify and discriminate the bacterial species at the sub-specific level, rep-PCR method is a reliable genomic fingerprinting tool. Fourteen strains of bacteria were isolated from different food sources, identified as Leuconostoc citreum using 16S rRNA gene sequencing and amplified using rep-primers (REP, ERIC, and (GTG)5). Fingerprinting patterns generated band range in between 300-6000 bp with REP, 150-6000bp with ERIC and 200-1700 bp with (GTG)5 primers respectively. In UPGMA dendrogram analysis, 14 strains were clustered into three clades (I, II and III) with all the primers, thus differentiating them at the molecular level...
August 17, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28811339/heritable-bovine-rumen-bacteria-are-phylogenetically-related-and-correlated-with-the-cow-s-capacity-to-harvest-energy-from-its-feed
#2
Goor Sasson, Sheerli Kruger Ben-Shabat, Eyal Seroussi, Adi Doron-Faigenboim, Naama Shterzer, Shamay Yaacoby, Margret E Berg Miller, Bryan A White, Eran Halperin, Itzhak Mizrahi
Ruminants sustain a long-lasting obligatory relationship with their rumen microbiome dating back 50 million years. In this unique host-microbiome relationship, the host's ability to digest its feed is completely dependent on its coevolved microbiome. This extraordinary alliance raises questions regarding the dependent relationship between ruminants' genetics and physiology and the rumen microbiome structure, composition, and metabolism. To elucidate this relationship, we examined the association of host genetics with the phylogenetic and functional composition of the rumen microbiome...
August 15, 2017: MBio
https://www.readbyqxmd.com/read/28811221/is-the-hype-around-the-reproductive-health-claims-of-maca-lepidium-meyenii-walp-justified
#3
REVIEW
Shruti Beharry, Michael Heinrich
ETHNOPHARMACOLOGICAL RELEVANCE: Maca - Lepidium meyenii Walp has been cultivated and used by Andean people for over 1,300 to 2000 years in Peru as food and medicine. Starting in the late 1990's it has developed into an important herbal medicine in China and is now cultivated there widely, too. AIM OF STUDY: This study aims to provide an insight into the emergence of maca on the global market as an alternative remedy to treat reproductive health related problems in both men and women and to critically assess these health claims...
August 12, 2017: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/28809383/increasing-symptoms-in-irritable-bowel-symptoms-with-ingestion-of-galacto-oligosaccharides-are-mitigated-by-%C3%AE-galactosidase-treatment
#4
C J Tuck, K M Taylor, P R Gibson, J S Barrett, J G Muir
OBJECTIVES: Galacto-oligosaccharides (GOS) are dietary FODMAPs (fermentable carbohydrates) associated with triggering gastrointestinal symptoms in patients with irritable bowel syndrome (IBS). This randomized, double-blind, placebo-controlled, cross-over trial aimed to assess whether oral α-galactosidase co-ingestion with foods high in GOS and low in other FODMAPs would reduce symptoms. METHODS: Patients meeting the Rome III criteria for IBS who were hydrogen-producers on breath testing were recruited...
August 15, 2017: American Journal of Gastroenterology
https://www.readbyqxmd.com/read/28808659/functional-profile-evaluation-of-lactobacillus-fermentum-tcuesc01-a-new-potential-probiotic-strain-isolated-during-cocoa-fermentation
#5
Tauá Alves Melo, Thalis Ferreira Dos Santos, Lennon Ramos Pereira, Hélic Moreira Passos, Rachel Passos Rezende, Carla Cristina Romano
The use of intestinal probiotic bacteria is very common in the food industry and has been the focus of the majority of research in this field. Yet in recent years, research on extraintestinal microorganisms has greatly increased due to their well-known potential as probiotics. Thus, we studied a strain of Lactobacillus fermentum (TCUESC01) extracted from fermenting cocoa. First, we examined the impact of pH on the growth of this strain and studied its survival under conditions similar to those of the human gastrointestinal tract...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28808547/patterns-of-seasonality-and-group-membership-characterize-the-gut-microbiota-in-a-longitudinal-study-of-wild-verreaux-s-sifakas-propithecus-verreauxi
#6
Andrea Springer, Claudia Fichtel, Gabriel A Al-Ghalith, Flávia Koch, Katherine R Amato, Jonathan B Clayton, Dan Knights, Peter M Kappeler
The intestinal microbiota plays a major role in host development, metabolism, and health. To date, few longitudinal studies have investigated the causes and consequences of microbiota variation in wildlife, although such studies provide a comparative context for interpreting the adaptive significance of findings from studies on humans or captive animals. Here, we investigate the impact of seasonality, diet, group membership, sex, age, and reproductive state on gut microbiota composition in a wild population of group-living, frugi-folivorous primates, Verreaux's sifakas (Propithecus verreauxi)...
August 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28802559/absence-of-subchronic-oral-toxicity-and-genotoxicity-of-rice-koji-with-aspergillus-terreus
#7
Jun-Won Yun, Seung-Hyun Kim, Yun-Soon Kim, Ji-Ran You, Eun-Young Cho, Jung-Hee Yoon, Euna Kwon, Sang Ju Lee, Seong Pil Kim, Jae Hoon Seo, Jae Pyung In, Jae Hun Ahn, Ja-June Jang, Jin-Sung Park, Jeong-Hwan Che, Byeong-Cheol Kang
Koji products have been considered as an effective fermented food consumed in East Asia with many health benefits. Particularly, rice koji with Aspergillus terreus (RAT) has been reported to be able to prevent hyperlipidemia and hepatic steatosis through regulating cholesterol synthesis. Despite its biological activities, there is a lack of comprehensive information to give an assurance of its safety. Therefore, the objective of this study was to perform a series of toxicological studies (repeated dose oral toxicity and genotoxicity) according to test guidelines published by the Organization for Economic Cooperation and Development...
August 9, 2017: Regulatory Toxicology and Pharmacology: RTP
https://www.readbyqxmd.com/read/28802302/kimchi-intake-and-atopic-dermatitis-in-korean-aged-19-49-years-the-korea-national-health-and-nutrition-examination-survey-2010-2012
#8
Hye Jung Kim, Se-Young Ju, Yoo Kyoung Park
BACKGROUND AND OBJECTIVES: Many studies have reported that fermented foods have favorable effects in preventing and managing atopic dermatitis (AD). Although kimchi, a major fermented food, is an important part of the traditional diet in Korea, only a few studies have investigated the relationship between AD and kimchi. This study aimed to examine the association between the risk of AD and kimchi intake among Korean adults aged 19 to 49 years. METHODS AND STUDY DESIGN: We conducted a population-based, cross-sectional study among a total of 7,222 adults who participated in the 2010-2012 Korea National Health and Nutrition Examination Surveys...
2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28802003/recombinant-lactococcus-lactis-for-efficient-conversion-of-cellodextrins-into-l-lactic-acid
#9
Chiara Gandini, Loredana Tarraran, Denis Kalemasi, Enrica Pessione, Roberto Mazzoli
Lactic acid bacteria (LAB) are among the most interesting organisms for industrial processes with a long history of application as food starters and biocontrol agents, and an underexploited potential for biorefineries converting biomass into high-value compounds. Lactic acid (LA), their main fermentation product, is among the most requested chemicals owing to its broad range of applications. Notably, LA polymers, i.e., polylactides, have high potential as biodegradable substitutes of fossil-derived plastics...
August 12, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28801839/biotransformation-with-cellulase-hemicellulase-and-yarrowia-lipolytica-boosts-health-benefits-of-okara
#10
Weng Chan Vong, Xin Ying Lim, Shao-Quan Liu
Okara (soybean residue) is a highly perishable food processing by-product from soymilk and tofu manufacture. It contains a large proportion of insoluble dietary fibre (40-60% on a dry basis), as well as digestion-resistant proteins, trypsin inhibitors and phytic acid. These factors contribute lead to the under-utilisation of okara. To improve the overall nutritional quality of okara, sequential saccharification of okara by Celluclast® 1.5L (cellulase) or Viscozyme® L (cellulase and hemicellulase) and fermentation by the yeast Yarrowia lipolytica were performed...
August 11, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28800966/reconstruction-of-a-metabolic-regulatory-network-in-escherichia-coli-for-purposeful-switching-from-cell-growth-mode-to-production-mode-in-direct-gaba-fermentation-from-glucose
#11
Yuki Soma, Yuri Fujiwara, Takuya Nakagawa, Keigo Tsuruno, Taizo Hanai
γ-aminobutyric acid (GABA) is a drug and functional food additive and is used as a monomer for producing the biodegradable plastic, polyamide 4. Recently, direct GABA fermentation from glucose has been developed as an alternative to glutamate-based whole cell bioconversion. Although total productivity in fermentation is determined by the specific productivity and cell amount responsible for GABA production, the optimal metabolic state for GABA production conflicts with that for bacterial cell growth. Herein, we demonstrated metabolic state switching from the cell growth mode based on the metabolic pathways of the wild type strain to a GABA production mode based on a synthetic metabolic pathway in Escherichia coli through rewriting of the metabolic regulatory network and pathway engineering...
August 8, 2017: Metabolic Engineering
https://www.readbyqxmd.com/read/28799779/melatonin-intake-and-potential-chronobiological-effects-on-human-health
#12
Ana Luiza Gomes Domingos, Helen Hermana Miranda Hermsdorff, Josefina Bressan
Melatonin is an indolamine with a recognized chronobiotic role. In turn, the supplementation of melatonin through capsules has been shown to be efficient in the modulation of inflammatory markers, oxidative stress, as well as in the control of hypertension and metabolic syndrome. However, the science of nutrition is interested in the study of the food sources of this hormone and its possible therapeutic effects. Thus, this review aimed to identify and present scientific papers that quantified melatonin in foods and evaluated its application in intervention studies...
August 11, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28799082/mathematical-model-of-interaction-between-bacteriocin-producing-lactic-acid-bacteria-and-listeria-part-2-bifurcations-and-applications
#13
Roberta Regina Delboni, Hyun Mo Yang
The big challenge for the food industry is the attending to demands for minimally processed foods, avoiding intense heat treatments and reducing the addition of chemical preservatives, but at the same time ensuring microbiological safety of these products. Lactic acid bacteria are traditionally used in the production of fermented foods. They are responsible for the production of antimicrobial compounds, such as organic acids and bacteriocins, which are protein compounds with bactericidal effect against related species and bacteria such as Listeria monocytogenes and Staphylococcus aureus...
August 10, 2017: Bulletin of Mathematical Biology
https://www.readbyqxmd.com/read/28796370/a-highly-sensitive-bimodal-detection-of-amine-vapours-based-on-aggregation-induced-emission-of-1-2-dihydroquinoxaline-derivatives
#14
Parvej Alam, Nelson Lik Ching Leung, Huifang Su, Zijie Qiu, Ryan T K Kwok, Jacky W Y Lam, Ben Zhong Tang
The detection of food spoilage is a major concern in food safety as large amounts of food are transported globally. Direct analysis of food samples is often time-consuming and requires expensive analytical instrumentation. A much simpler and more cost-effective method for monitoring food fermentation is to detect biogenic amines generated as a by-product during food decomposition. In this work, a series of 1,2-dihydroquinoxaline derivatives (DQs) with aggregation-induced emission (AIE) characteristics were synthesized and their protonated forms, i...
August 10, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28796363/physiochemical-properties-and-probiotic-survivability-of-symbiotic-corn-based-yogurt-like-product
#15
Cuina Wang, Huajie Zheng, Tingting Liu, Dawei Wang, Mingruo Guo
Corn is a major grain produced in northern China. Corn-based functional food products are very limited. In this study, a symbiotic corn-based yogurt-like product was developed. Corn milk was prepared through grinding, extrusion and milling, and hydration processes. Corn extrudate was prepared under the optimized conditions of corn flour particle size <180 μm, moisture content of 15% and extrusion temperature at 130 °C. The corn milk was prepared from 8% corn extrudate suspension and then milled twice with 0...
August 10, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28791562/production-of-fumaric-acid-by-bioconversion-of-corncob-hydrolytes-using-an-improved-rhizopus-oryzae-strain
#16
Xuefeng Wu, Qing Liu, Yongdong Deng, Xiaoju Chen, Zhi Zheng, Shaotong Jiang, Xingjiang Li
The use of microorganism fermentation for production of fumaric acid (FA), which is widely used in food, medicine, and other fields, can provide technical support for the FA industry. In this study, we aimed to increase the titer of FA production by using an improved Rhizopus oryzae WHT5, which was domesticated to obtain a furfural-resistant strain in corncob hydrolytes. The metabolic pathways and metabolic network of this strain were investigated, and the related enzymes and metabolic flux were analyzed. Metabolic pathway analysis showed that the R...
August 8, 2017: Applied Biochemistry and Biotechnology
https://www.readbyqxmd.com/read/28791292/the-role-of-supplemental-complex-dietary-carbohydrates-and-gut-microbiota-in-promoting-cardiometabolic-and-immunological-health-in-obesity-lessons-from-healthy-non-obese-individuals
#17
REVIEW
Petra C Vinke, Sahar El Aidy, Gertjan van Dijk
Dietary supplementation with complex carbohydrates is known to alter the composition of gut microbiota, and optimal implementation of the use of these so called "prebiotics" could be of great potential in prevention and possibly treatment of obesity and associated cardiometabolic and inflammatory diseases via changes in the gut microbiota. An alternative to this "microbiocentric view" is the idea that health-promoting effects of certain complex carbohydrates reside in the host, and could secondarily affect the diversity and abundance of gut microbiota...
2017: Frontiers in Nutrition
https://www.readbyqxmd.com/read/28790923/gut-microbiome-response-to-sucralose-and-its-potential-role-in-inducing-liver-inflammation-in-mice
#18
Xiaoming Bian, Liang Chi, Bei Gao, Pengcheng Tu, Hongyu Ru, Kun Lu
Sucralose is the most widely used artificial sweetener, and its health effects have been highly debated over the years. In particular, previous studies have shown that sucralose consumption can alter the gut microbiota. The gut microbiome plays a key role in processes related to host health, such as food digestion and fermentation, immune cell development, and enteric nervous system regulation. Inflammation is one of the most common effects associated with gut microbiome dysbiosis, which has been linked to a series of human diseases, such as diabetes and obesity...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28789570/an-overview-of-bacillus-proteases-from-production-to-application
#19
Fabiano Jares Contesini, Ricardo Rodrigues de Melo, Hélia Harumi Sato
Proteases have a broad range of applications in industrial processes and products and are representative of most worldwide enzyme sales. The genus Bacillus is probably the most important bacterial source of proteases and is capable of producing high yields of neutral and alkaline proteolytic enzymes with remarkable properties, such as high stability towards extreme temperatures, pH, organic solvents, detergents and oxidizing compounds. Therefore, several strategies have been developed for the cost-effective production of Bacillus proteases, including optimization of the fermentation parameters...
August 8, 2017: Critical Reviews in Biotechnology
https://www.readbyqxmd.com/read/28783111/nutritional-guidelines-and-fermented-food-frameworks
#20
Victoria Bell, Jorge Ferrão, Tito Fernandes
This review examines different nutritional guidelines, some case studies, and provides insights and discrepancies, in the regulatory framework of Food Safety Management of some of the world's economies. There are thousands of fermented foods and beverages, although the intention was not to review them but check their traditional and cultural value, and if they are still lacking to be classed as a category on different national food guides. For understanding the inconsistencies in claims of concerning fermented foods among various regulatory systems, each legal system should be considered unique...
August 7, 2017: Foods (Basel, Switzerland)
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