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https://www.readbyqxmd.com/read/28645183/in-defense-of-bacillus-thuringiensis-the-safest-and-most-successful-microbial-insecticide-available-to-humanity-a-response-to-efsa
#1
Ben Raymond, Brian A Federici
The Bacillus cereus group contains vertebrate pathogens such as Bacillus anthracis and Bacillus cereus and the invertebrate pathogen Bacillus thuringiensis. Microbial biopesticides based on B. thuringiensis (Bt) are widely recognized as being among the safest and least environmentally damaging insecticidal products available. Nevertheless, a recent food poisoning incident prompted a European Food Safety Authority review which argued that B. thuringiensis poses a health risk equivalent to B. cereus, a causative agent of diarrhoea...
June 22, 2017: FEMS Microbiology Ecology
https://www.readbyqxmd.com/read/28644912/biofilm-formation-and-disinfectant-resistance-of-salmonella-spp-in-mono-and-dual-species-with-pseudomonas-aeruginosa
#2
Xinyi Pang, Yishan Yang, Hyun-Gyun Yuk
AIMS: This study aimed to evaluate the biofilm formation and disinfectant resistance of Salmonella cells in mono- and dual-species biofilms with Pseudomonas aeruginosa, and to investigate the role of extracellular polymeric substances (EPS) in protection of biofilms against disinfection treatment. METHODS AND RESULTS: The populations of Salmonella in mono- or dual-species biofilms with P. aeruginosa on stainless steel (SS) coupons were determined before and after exposure to commercial disinfectant, 50 μg ml(-1) chlorine or 200 μg ml(-1) Ecolab(®) Whisper(™) V (a blend of four effective quaternary ammonium compounds)...
June 23, 2017: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/28644760/expression-and-characterization-of-soybean-seed-coat-peroxidase-in-escherichia-coli-bl21-de3
#3
Changqing Liu, Kai Zheng, Ying Xu, Lacmata Tamekou Stephen, Jiming Wang, Hongwei Zhao, Tongqing Yue, Rui Nian, Haibo Zhang, Mo Xian, Huizhou Liu
Soybean seed coat peroxidase(SBP) is a valuable enzyme having a broad variety of applications in analytical chemistry, biochemistry and food processing. In the present study, the sscp gene (Gene ID: 548068) was optimized based on the preferred codon usage of Escherichia coli, synthesized, and expressed in E. coli BL21(DE3). SDS-PAGE and western blot analysis of this expressed protein revealed that its molecular weight is approximately 39 kDa. The effects of induction temperature, concentration of IPTG (isopropyl-β-D-thiogalactoside) and hemin, induction time, expression time were optimized to enhance SBP production with a maximum activity of 11...
June 23, 2017: Preparative Biochemistry & Biotechnology
https://www.readbyqxmd.com/read/28644413/clonal-diversity-of-esbl-producing-escherichia-coli-isolated-from-environmental-human-and-food-samples
#4
Elena Ojer-Usoz, David González, Ana Isabel Vitas
This study presents a comprehensive approach of a clonal diversity analysis of 448 Extended-spectrum β-lactamase (ESBL)-producing E. coli isolated from environmental, human and food samples in Spain. The phenotypic confirmation of ESBL production was performed by disc diffusion and microdilution methods, while Polymerase Chain Reaction (PCR) and sequencing were used for the molecular characterization of β-lactamase genes (blaCTX-M, blaSHV, blaTEM, blaOXA). Clonal relationship of isolates was determined by multi-locus sequence typing (MLST)...
June 23, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28644408/isolation-and-selection-of-microalgal-strains-from-natural-water-sources-in-viet-nam-with-potential-for-edible-oil-production
#5
Tran Yen Thao, Dinh Thi Nhat Linh, Vo Chi Si, Taylor W Carter, Russell T Hill
Industrial vegetable oil production in Viet Nam depends on oil seeds and crude plant oils that are currently more than 90% imported. As the first step in investigating the feasibility of using microalgae to provide Viet Nam with a domestic source of oil for food and edible oil industries, fifty lipid-producing microalgae were isolated and characterized. The microalgae were isolated from water sources ranging from freshwater to brackish and marine waters from a wide geographic distribution in Viet Nam. Initial analyses showed that 20 of the 50 strains had good growth rates, produced high biomass and had high lipid content, ranging up to 50% of dry weight biomass...
June 23, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28644370/adaptation-of-new-colombian-food-based-complementary-feeding-recommendations-using-linear-programming
#6
Marion Tharrey, Gilma A Olaya, Mary Fewtrell, Elaine Ferguson
OBJECTIVE: To use Linear Programming (LP) analyses to adapt New Complementary Feeding Guidelines (NCFg) designed for infants aged 6-12 month (m) living in poor socioeconomic circumstances in Bogota to ensure dietary adequacy for young children aged 12-23 m. DESIGN: A secondary data analysis was performed using dietary and anthropometric data collected from 12 m old infants (n = 72) participating in a randomised controlled trial. LP analyses were performed to identify nutrients whose requirements were difficult to achieve using local foods as consumed; and to test and compare the NCFg and alternative food-based recommendations (FBRs) on the basis of dietary adequacy, for 11 micronutrients, at the population level...
June 21, 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28644359/commercial-probiotic-products-a-call-for-improved-quality-control-a-position-paper-by-the-espghan-working-group-for-probiotics-and-prebiotics
#7
Sanja Kolaček, Iva Hojsak, Roberto Berni Canani, Alfredo Guarino, Flavia Indrio, Rok Orel, Bruno Pot, Raanan Shamir, Hania Szajewska, Yvan Vandenplas, Johannes van Goudoever, Zvi Weizman
Probiotics have been proposed for a number of indications ranging from the hypothetical long-term immunomodulatory effects to proven benefits in the management of different clinical conditions.An increasing number of commercial products containing probiotics are available. In those products, irrespective if it is food, food supplement, medical food, or drug, the probiotic microorganisms have to be present in a sufficient number by the end of the shelf-life, to pass through the gastrointestinal tract resisting acid and bile, to colonize the gut, and to retain functional properties required to obtain the suggested beneficial effect...
July 2017: Journal of Pediatric Gastroenterology and Nutrition
https://www.readbyqxmd.com/read/28644339/committee-opinion-no-707-access-to-emergency-contraception
#8
(no author information available yet)
Emergency contraception refers to contraceptive methods used to prevent pregnancy in the first few days after unprotected intercourse, sexual assault, or contraceptive failure. Although the U.S. Food and Drug Administration approved the first dedicated product for emergency contraception in 1998, numerous barriers to emergency contraception remain. The purpose of this Committee Opinion is to examine barriers to the use of emergency contraception, emphasize the importance of increasing access, and review new methods of emergency contraception and limitations in efficacy in special populations...
July 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28644332/committee-opinion-no-707-summary-access-to-emergency-contraception
#9
(no author information available yet)
Emergency contraception refers to contraceptive methods used to prevent pregnancy in the first few days after unprotected intercourse, sexual assault, or contraceptive failure. Although the U.S. Food and Drug Administration approved the first dedicated product for emergency contraception in 1998, numerous barriers to emergency contraception remain. The purpose of this Committee Opinion is to examine barriers to the use of emergency contraception, emphasize the importance of increasing access, and review new methods of emergency contraception and limitations in efficacy in special populations...
July 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28643627/bifidobacteria-and-their-health-promoting-effects
#10
Claudio Hidalgo-Cantabrana, Susana Delgado, Lorena Ruiz, Patricia Ruas-Madiedo, Borja Sánchez, Abelardo Margolles
Bifidobacteria are members of the intestinal microbiota of mammals and other animals, and some strains are able to exert health-promoting effects. The genus Bifidobacterium belongs to the Actinobacteria phylum. Firmicutes, Bacteroidetes, and Actinobacteria constitute the most abundant phyla in the human intestinal microbiota, Firmicutes and Bacteroidetes being predominant in adults, and Actinobacteria in breast-fed infants, where bifidobacteria can reach levels higher than 90% of the total bacterial population...
June 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28643623/the-genomic-basis-of-lactobacilli-as-health-promoting-organisms
#11
Elisa Salvetti, Paul W O'Toole
Lactobacilli occupy a unique position in human culture and scientific history. Like brewer's and baker's yeast, lactobacilli have been associated with food production and preservation for thousands of years. Lactobacillus species are used in mixed microbial cultures, such as the classical Lactobacillus bulgaricus/Streptococcus thermophilus inoculum for yogurt fermentation, or combinations of diverse lactobacilli/yeasts in kefir grains. The association of lactobacilli consumption with greater longevity and improved health formed the basis for developing lactobacilli as probiotics, whose market has exploded worldwide in the past 10 years...
June 2017: Microbiology Spectrum
https://www.readbyqxmd.com/read/28643618/heat-stabilised-rice-bran-consumption-by-colorectal-cancer-survivors-modulates-stool-metabolite-profiles-and-metabolic-networks-a-randomised-controlled-trial
#12
Dustin G Brown, Erica C Borresen, Regina J Brown, Elizabeth P Ryan
Rice bran (RB) consumption has been shown to reduce colorectal cancer (CRC) growth in mice and modify the human stool microbiome. Changes in host and microbial metabolism induced by RB consumption was hypothesised to modulate the stool metabolite profile in favour of promoting gut health and inhibiting CRC growth. The objective was to integrate gut microbial metabolite profiles and identify metabolic pathway networks for CRC chemoprevention using non-targeted metabolomics. In all, nineteen CRC survivors participated in a parallel randomised controlled dietary intervention trial that included daily consumption of study-provided foods with heat-stabilised RB (30 g/d) or no additional ingredient (control)...
May 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28643515/structures-of-degradation-products-and-degradation-pathways-of-aflatoxin-b1-by-high-voltage-atmospheric-cold-plasma-hvacp-treatment
#13
Hu Shi, Bruce R Cooper, Richard L Stroshine, Klein E Ileleji, Kevin Keener
High voltage atmospheric cold plasma (HVACP) is a novel non-thermal decontamination technology that has potential for use in the food industry. In this study, HVACP was applied to treat pure aflatoxin B1 (AFB1) powder on a glass slide. AFB1 was degraded by 76% using a 5 min HVACP treatment in air having 40% relative humidity. The degradation products of AFB1 were separated and their molecular formulas were elucidated using liquid chromatography time of flight mass spectrometry (HPLC-TOF MS). Six main degradation products were observed...
June 23, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28642876/magnetic-separation-methods-for-the-detection-of-mycobacterium-avium-subsp-paratuberculosis-in-various-types-of-matrices-a-review
#14
REVIEW
Marketa Husakova, Radka Dziedzinska, Iva Slana
The main reasons to improve the detection of Mycobacterium avium subsp. paratuberculosis (MAP) are animal health and monitoring of MAP entering the food chain via meat, milk, and/or dairy products. Different approaches can be used for the detection of MAP, but the use of magnetic separation especially in conjunction with PCR as an end-point detection method has risen in past years. However, the extraction of DNA which is a crucial step prior to PCR detection can be complicated due to the presence of inhibitory substances...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28642078/experimental-tests-on-commercial-sweet-product-residue-spr-as-a-suitable-feed-for-anaerobic-bioenergy-h2-ch4-production
#15
Andrea C Luongo Malavè, Debora Fino, Carlos E Gómez Camacho, Bernardo Ruggeri
Food stores can find themselves in the position of having to dispose of different types of products, such as snacks, confectionery, prepackaged food, drinks and others, Sweet Product Residue (SPR), which presents a great opportunity to produce energy through Anaerobic Digestion (AD), due to its high sugar, carbohidrate and fat contents. In order to valorise SPR, this paper takes into consideration the all necessary treatments; owing the fact that the refuses are constitute by an organic part and packaging (plastic, paper and their combinations), a pretreatment able to remove the latter is necessary...
June 19, 2017: Waste Management
https://www.readbyqxmd.com/read/28641598/progress-towards-elimination-of-trans-fatty-acids-in-foods-commonly-consumed-in-four-latin-american-cities
#16
Rafael Monge-Rojas, Uriyoán Colón-Ramos, Enrique Jacoby, Thelma Alfaro, Maria das Graças Tavares do Carmo, Salvador Villalpando, Claudio Bernal
OBJECTIVE: To assess progress towards the elimination of trans-fatty acids (TFA) in foods after the 2008 Pan American Health Organization (PAHO) recommendation of virtual elimination of TFA in Latin America. DESIGN: A descriptive, comparative analysis of foods that were likely to contain TFA and were commonly consumed in four cities in Latin America. SETTING: San José (Costa Rica), Mexico City (Mexico), Rio de Janeiro (Brazil), Buenos Aires (Argentina)...
June 23, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28641532/trimethylamine-n-oxide-tmao-as-a-new-potential-therapeutic-target-for-insulin-resistance-and-cancer
#17
Jens Oellgaard, Signe Abitz Winther, Tobias Schmidt Hansen, Peter Rossing, Bernt Johan von Scholten
BACKGROUND: The intake of animal products in food has been associated with both the development of insulin resistance and gastrointestinal cancers (GIC). Through the digestion of animal protein and other constituents of animal products, the commensal bacteria in the gut (the gut microbiota) forms metabolites that can contribute to the development of both insulin resistance and cancer. Trimethylamine-N-Oxide (TMAO) is such a molecule and has recently drawn a lot of attention as it may be a risk factor for - and a link between - the gut microbiota and cardiovascular and renal disease...
June 21, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28641511/microbial-lipase-mediated-by-health-beneficial-modification-of-cholesterol-and-flavors-in-food-products-a-review
#18
Ranjana Sharma, Nivedita Sharma
BACKGROUND: The tremendous need of lipase in varied applications in biotechnological increases its economical value in food and allied industries. Lipase has an impressive number of applications viz. enhancements of flavor in food products (Cheese, butter, alcoholic beverages, milk chocolate and diet control food stuffs), detergent industry in removing oil, grease stain, organic chemical processing, textile industry, oleochemical industry, cosmetic industry and also as therapeutic agents in pharmaceutical industries...
June 14, 2017: Recent Patents on Biotechnology
https://www.readbyqxmd.com/read/28641475/care-and-not-wealth-is-a-predictor-of-wasting-and-stunting-of-the-coffee-kids-of-jimma-zone-southwest-ethiopia
#19
Kalkidan Hassen Abate, Tefera Belachew
BACKGROUND: The generation of cash from agricultural products is the mainstay of the livelihood of many households in developing countries. However, critics of cash cropping have highlighted its influence on dietary diversity and availability of food at the household level, eroding the potential for optimal child caring practices. METHODS: A community-based cross-sectional survey was carried out in three randomly selected coffee-producing districts of Jimma Zone in southwest Ethiopia...
January 1, 2017: Nutrition and Health
https://www.readbyqxmd.com/read/28640328/-validity-and-reproducibility-of-an-internet-based-questionnaire-web-caafe-to-evaluate-the-food-consumption-of-students-aged-7-to-15-years
#20
Gilmar Mercês de Jesus, Maria Alice Altenburg de Assis, Emil Kupek
The study evaluated the validity and reproducibility of the food consumption section of the questionnaire Food Intake and Physical Activity of School Children (Web-CAAFE), an Internet-based software for the qualitative measurement of food consumption by recalling the previous day. A total of 390 students in grades 2 to 5 (7 to 15 years) of a semi-integral public school participated in the study. The validity was tested by comparing the report in the Web-CAAFE and the direct observation of food consumed in the school in the previous day...
June 5, 2017: Cadernos de Saúde Pública
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