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https://www.readbyqxmd.com/read/28830019/metabolic-and-functional-paths-of-lactic-acid-bacteria-in-plant-foods-get-out-of-the-labyrinth
#1
REVIEW
Pasquale Filannino, Raffaella Di Cagno, Marco Gobbetti
Even though lactic acid bacteria are only a small part of the plant autochthonous microbiota, they represent the most important microbes having the capability to promote significant changes in the health-promoting properties of plant foods. Owing to the variety of plant chemical components and the possible pathways for bioconversion, plant fermentation is like a metabolic labyrinth undertaken by bacteria. The winding metabolic pathways involve several secondary plant metabolites (e.g. phenolics). The success of these paths is connected to the adaptive growth and survival of lactic acid bacteria...
August 19, 2017: Current Opinion in Biotechnology
https://www.readbyqxmd.com/read/28827547/tracing-heavy-metals-in-swine-manure-maggot-chicken-production-chain
#2
Wanqiang Wang, Wenjuan Zhang, Xiaoping Wang, Chaoliang Lei, Rui Tang, Feng Zhang, Qizhi Yang, Fen Zhu
With the development of large-scale livestock farming, manure pollution has drawn much attention. Conversion by insects is a rapid and cost-effective new method for manure management. Swine manure conversion with maggots (Musca domestica larvae) has developed, and the harvested maggots are often used as animal feed. However, the flow of heavy metals from manure to downstream processes cannot be ignored, and therefore, heavy metal content was measured in untreated raw manure, maggot-treated manure, harvested maggots and maggot-eating chickens (chest muscle and liver) to evaluate potential heavy metal risks...
August 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28822890/production-of-a-novel-monoclonal-antibody-applicable-for-an-immunochromatographic-assay-for-kudoa-septempunctata-spores-contaminating-the-raw-olive-flounder-paralichthys-olivaceus
#3
Michio Jinnai, Takao Kawai, Tetsuya Harada, Yasutaka Nishiyama, Hiroshi Yokoyama, Sho Shirakashi, Hiroshi Sato, Junko Sakata, Yuko Kumeda, Yutaka Fukuda, Kikuyo Ogata, Kentaro Kawatsu
Kudoa septempunctata, a myxosporean parasite of the olive flounder (Paralichthys olivaceus), causes foodborne gastroenteritis after ingestion of contaminated raw flounder. Available methods to detect K. septempunctata require expensive equipment, well-trained personnel, and lengthy procedures. Here we generated a novel monoclonal antibody (MAb 15G11) against K. septempunctata and used it to produce a prototype immunochromatographic assay (prototype Kudoa-ICA). Within 15min, the prototype Kudoa-ICA detected ≥1...
August 9, 2017: International Journal of Food Microbiology
https://www.readbyqxmd.com/read/28822285/conversion-of-raw-and-untreated-disposal-into-ethanol
#4
Saurabh Sudha Dhiman, Aditi David, Namita Shrestha, Glenn R Johnson, Kenneth M Benjamin, Venkataramana Gadhamshetty, Rajesh K Sani
The one-pot CRUDE (Conversion of Raw and Untreated Disposal into Ethanol) process was developed for simultaneous hydrolysis and fermentation of unprocessed food waste into ethanol using thermophilic (growing at 65°C) anaerobic bacteria. Unlike existing waste to energy technologies, the CRUDE process obviates the need for any pre-treatment or enzyme addition. A High-Temperature-High-Pressure (HTHP) distillation technique was also applied that facilitated efficient use of fermentation medium, inoculum recycling, and in-situ ethanol collection...
July 21, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28820044/determination-of-fusarium-toxins-in-functional-vegetable-milks-applying-salting-out-assisted-liquid-liquid-extraction-combined-with-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry
#5
Ahmed M Hamed, Natalia Arroyo-Manzanares, Ana M García-Campaña, Laura Gámiz-Gracia
Vegetable milks are considered as functional foods due to their physiological benefits. Although the consumption of these products has significantly increased, they have received little attention in legislation, as regard to contaminants. However, they may contain mycotoxins resulting from the use of contaminated raw materials. In this work, ultra-high performance liquid chromatography tandem mass spectrometry has been proposed for the determination of the most relevant Fusarium toxins (fumonisin B1 and B2, HT-2 and T-2 toxins, zearalenone, deoxynivalenol and fusarenon-X) in different functional beverages based on cereals, legumes and seeds...
August 18, 2017: Food Additives & Contaminants. Part A, Chemistry, Analysis, Control, Exposure & Risk Assessment
https://www.readbyqxmd.com/read/28819632/detection-of-islet-cell-immune-reactivity-with-low-glycemic-index-foods-is-this-a-concern-for-type-1-diabetes
#6
Datis Kharrazian, Martha Herbert, Aristo Vojdani
Dietary management of autoimmune diabetes includes low glycemic foods classified from the glycemic index, but it does not consider the role that immunoreactive foods may play with the immunological etiology of the disease. We measured the reactivity of either monoclonal or polyclonal affinity-purified antibodies to insulin, insulin receptor alpha, insulin receptor beta, zinc transporter 8 (ZnT8), tyrosine phosphatase-based islet antigen 2 (IA2), and glutamic acid decarboxylase (GAD) 65 and 67 against 204 dietary proteins that are commonly consumed...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28815181/characterization-of-exopolysaccharide-produced-by-streptococcus-thermophilus-cc30
#7
Sri Lakshmi Ramya Krishna Kanamarlapudi, Sudhamani Muddada
An exopolysaccharide (EPS) producing strain CC30 was isolated from raw milk and identified as Streptococcus thermophilus with morphological and 16S sequencing analysis. The strain was shown to produce 1.95 g/L of EPS when grown in skim milk lactose medium at 30°C by increasing the viscosity of the medium. The EPS was isolated and purified, and it was shown to consist of glucose and galactose in 1 : 1 ratio, with molecular weights ranging from 58 to 180 kDa. FTIR spectroscopy indicated the EPS to have amide, hydroxyl, and carboxyl groups...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28812980/application-of-an-in-vitro-digestion-model-for-210po-bioaccessibility-assessment-in-seafood
#8
Carla Roselli, Donatella Desideri, Laura Feduzi, Lucia Ugolini, Maria Assunta Meli
This study aims to investigate the bioaccessibility of 210Po in seafood and the impact of food preparation on this radionuclide. Polonium bioaccessibility is the fraction of 210Po mobilized from food matrices into digestive extractants when applying an in vitro digestion model. The degree of bioaccessibility of 210Po in food has important implications for estimating ingestion doses from this radionuclide. The simulation of gastrointestinal digestion was divided into three stages through the use of synthetic saliva, gastric and bile-pancreas solutions...
August 16, 2017: Journal of Radiological Protection: Official Journal of the Society for Radiological Protection
https://www.readbyqxmd.com/read/28812009/the-bacteriological-quality-safety-and-antibiogram-of-salmonella-isolates-from-fresh-meat-in-retail-shops-of-bahir-dar-city-ethiopia
#9
Melkamnesh Azage, Mulugeta Kibret
The habit of raw meat consumption in addition to the poor hygienic standards and lack of knowledge contribute to food-borne diseases outbreaks. The objective of this research was to assess the bacterial quality and safety of fresh meat from retail Bahir Dar City, Ethiopia. A total of 30 fresh meat samples were collected from butcher shops. Standard bacteriological methods were used to isolate and enumerate bacteria. Kirby-Bauer disk diffusion method was used for antimicrobial susceptibility testing of Salmonella isolates...
2017: International journal of food science
https://www.readbyqxmd.com/read/28809507/persistence-of-indigenous-escherichia-coli-in-raw-bovine-manure-amended-soil
#10
Samantha K Çekiç, Jaysankar De, Mohammad Jubair, Keith R Schneider
The Food Safety Modernization Act attempts to reduce produce-related foodborne illness by using preventive rather than reactive measures. The goal of this research was to determine the persistence of manure-borne generic Escherichia coli under laboratory and field conditions. The population density of naturally occurring E. coli was ∼7.2 and 5.4 log CFU/10 g in pre- and postscreened manures, respectively. Postscreened (i.e. after the liquid manure has passed through a screen) manure was applied at light, medium, and heavy rates to fields in Live Oak and Citra, FL, during the fall and summer...
September 2017: Journal of Food Protection
https://www.readbyqxmd.com/read/28807876/molecular-insights-on-xenoestrogenic-potential-of-zearalenone-14-glucoside-through-a-mixed-in%C3%A2-vitro-in-silico-approach
#11
Luca Dellafiora, Roberta Ruotolo, Alessio Perotti, Martina Cirlini, Gianni Galaverna, Pietro Cozzini, Annamaria Buschini, Chiara Dall'Asta
The mycotoxin zearalenone may contaminate food and feed worldwide upon infections by Fusarium spp. of plants and raw materials intended for human and animal consumption. Currently, contamination by zearalenone and congeners pose concern for health due to xenoestrogenic effects. However, while zearalenone and the main reduced metabolites are well-known xenoestrogens, some plant metabolites that may enter the food chain have been observed aside. Among them, zearalenone-14-glucoside may be abundant in the edible parts of infected plants, thereby entering significantly the human diet and animal feeding...
August 12, 2017: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28807093/mc-media-pad-sa-sanita-kun-sa-for-the-enumeration-of-staphylococcus-aureus-in-a-variety-of-foods
#12
Hajime Teramura, Gail Betts
MC-Media Pad SA (formerly known as Sanita-kun SA) is a dry rehydratable film medium for the enumeration of Staphylococcus aureus. The performance of the method in a variety of foods was compared with that of ISO 6888-1:1999, Microbiology of Food and Animal Feeding Stuffs - Horizontal Method for the Enumeration of Coagulase-Positive Staphylococci (Staphylococcus aureus and Other Species) - Part 1: Technique Using Baird-Parker Agar Medium. The validated matrixes included pastrami, a sliced cooked chicken roll, cooked prawns, cold-smoked salmon, pasta salad, sandwich spread, fresh uncooked pasta, infant cereal, custard, and raw-milk Brie cheese...
August 10, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28803866/pericarditis-caused-by-campylobacter-fetus-subspecies-fetus-associated-with-ingestion-of-raw-beef-liver
#13
Yoshihiko Kiyasu, Daiki Akiyama, Yoko Kurihara, Hiroshi Koganemaru, Shigemi Hitomi
Campylobacter fetus is an organism residing primarily in the gastrointestinal tracts of cattle and sheep and transmitting to humans through ingestion of contaminated food products or surface water. The organism has caused various extraintestinal infections but, to date, purulent pericarditis due to the organism has rarely been described. We report a case of purulent pericarditis due to C. fetus subsp. fetus, occurring in a patient having several predisposing conditions, including receiving hemodialysis therapy, recent surgery for cecal cancer, and administration of esomeprazole...
August 10, 2017: Journal of Infection and Chemotherapy: Official Journal of the Japan Society of Chemotherapy
https://www.readbyqxmd.com/read/28802846/effect-of-domestic-cooking-on-the-starch-digestibility-predicted-glycemic-indices-polyphenol-contents-and-alpha-amylase-inhibitory-properties-of-beans-phaseolis-vulgaris-and-breadfruit-treculia-africana
#14
E Chinedum, S Sanni, N Theressa, A Ebere
The effect of processing on starch digestibility, predicted glycemic indices (pGI), polyphenol contents and alpha amylase inhibitory properties of beans (Phaseolis vulgaris) and breadfruit (Treculia africana) was studied. Total starch ranged from 4.3 to 68.3g/100g, digestible starch ranged from 4.3 to 59.2 to 65.7g/100g for the raw and processed legumes; Resistance starch was not detected in most of the legumes except in fried breadfruit and the starches in both the raw and processed breadfruit were more rapidly digested than those from raw and cooked beans...
August 9, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28801015/food-allergen-extracts-to-diagnose-food-induced-allergic-diseases-how-they-are-made
#15
Natalie A David, Anusha Penumarti, A Wesley Burks, Jay E Slater
OBJECTIVE: To review the manufacturing procedures of food allergen extracts and applicable regulatory requirements from government agencies, potential approaches to standardization, and clinical application of these products. The effects of thermal processing on allergenicity of common food allergens are also considered. DATA SOURCES: A broad literature review was conducted on the natural history of food allergy, the manufacture of allergen extracts, and the allergenicity of heated food...
August 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28800825/efficacy-evaluation-of-a-new-water-sanitizer-for-increasing-the-shelf-life-of-southern-australian-king-george-whiting-and-tasmanian-atlantic-salmon-fillets
#16
Manouchehr Khazandi, Permal Deo, Sergio Ferro, Henrietta Venter, Hongfei Pi, Simon Crabb, Tony Amorico, Abiodun D Ogunniyi, Darren J Trott
The bacterial species and specific spoilage organisms associated with the Southern Australian King George Whiting (KGW) and Tasmanian Atlantic Salmon (TAS), and the efficacy of a HOCl-containing water-based sanitization product (Electro-Chemically Activated Solution, by ECAS4) in extending the shelf life of KGW and TAS fillets were evaluated. Fillets were washed with an ECAS4 solution containing either 45 ppm or 150 ppm of free chlorine and bacterial species enumerated on selective and non-selective media, followed by identification of pure isolates by 16 S rRNA gene sequencing...
December 2017: Food Microbiology
https://www.readbyqxmd.com/read/28799790/review-comparison-of-the-effectiveness-of-decontaminating-strategies-for-fresh-fruits-and-vegetables-and-related-limitations
#17
Jae-Hyun Yoon, Sun-Young Lee
Given that it should be aware of the nutritional benefits, resulting from the consumption of fresh fruits and vegetables consumed raw and/or minimally processed, comparing the efficacy of different individual sanitizing methods against the major food-borne pathogens localized in fresh commodities is of much importance; these products are easily vulnerable to the microbial contamination. In this review, the current propensity of alternative sanitizing methods was introduced, as well as principal elements for deteriorating the cleaning effects were also discussed...
August 11, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28799725/engineering-of-corynebacterium-glutamicum-for-consolidated-conversion-of-hemicellulosic-biomass-into-xylonic-acid
#18
Sung Sun Yim, Jae Woong Choi, Se Hwa Lee, Eun Jung Jeon, Wook-Jin Chung, Ki Jun Jeong
Xylonic acid is a promising platform chemical with various applications in the fields of food, pharmaceuticals, and agriculture. However, in the current process, xylonic acid is mainly produced by the conversion of xylose, whose preparation requires substantial cost and time. Here, we engineered Corynebacterium glutamicum for the consolidated bioconversion of hemicellulosic biomass (xylan) into xylonic acid in a single cultivation. First, for the efficient conversion of xylose to xylonic acid, xylose dehydrogenase (Xdh) and xylonolactonase (XylC) from Caulobacter crescentus were evaluated together with a previously optimized xylose transporter module (XylE of Escherichia coli), and cells expressing xdh and xylE genes with an optimized expression system could produce xylonic acid from xylose with 100% conversion yield...
August 11, 2017: Biotechnology Journal
https://www.readbyqxmd.com/read/28795292/relevance-of-lipophilic-allergens-in-food-allergy-diagnosis
#19
REVIEW
Uta Jappe, Christian Schwager
PURPOSE OF REVIEW: The purpose of this review is to provide available data on a new class of allergens, the oleosins, and their diagnostic value. There is evidence that allergen extracts used for in vivo as well as in vitro diagnostic tests do not contain oleosins because these proteins are lipophilic and nearly insoluble in saline or aqueous solutions. So far, only oleosins of peanut, sesame and hazelnut have been registered as allergens. Reports on IgE-binding tests performed with oleosins of different species with sera from allergic patients show that IgE specific for oleosins are associated with severe allergic reactions which is why they should be part of the diagnostic tests in the future...
August 9, 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28794923/a-sustainable-use-of-low-cost-raw-substrates-for-biodiesel-production-by-the-oleaginous-yeast-wickerhamomyces-anomalus
#20
Fatma Arous, Imen Ben Atitallah, Moncef Nasri, Tahar Mechichi
Over the past decade, the increasing demand of vegetable oils for biodiesel production has highlighted the need for alternative oil feedstocks that do not compete with food production. In this context, the combined use of agro-industrial wastes and oleaginous microorganisms could be a promising strategy for sustainable biodiesel production. The present investigation involves the performance of the oleaginous yeast Wickerhamomyces anomalus strain EC28 to produce lipids from different agro-industrial wastewaters (i...
August 2017: 3 Biotech
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