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https://www.readbyqxmd.com/read/28805476/microencapsulate-aspergillus-niger-peptidases-from-agroindustrial-waste-wheat-bran-spray-process-evaluation-and-stability
#1
T P F Cabral, N C Bellini, K R Assis, C C C Teixeira, A D Lanchote, H Cabral, L A P de Freitas
The aim of this work was to obtain microencapsulated stable Aspergillus niger peptidases by post fermentation spray drying. The enzymatic extract was evaluated before and after spray drying microencapsulation to verify the effects of five different process parameters on the extract enzymatic activity, i.e. air flow, extract feed rate, drying temperature, homogenizing time and weight ratio of extract to encapsulation material. The optimal conditions were determined by desirability functions and experimentally confirmed...
August 14, 2017: Journal of Microencapsulation
https://www.readbyqxmd.com/read/28803337/production-of-rhamnolipids-by-semi-solid-state-fermentation-with-pseudomonas-aeruginosa-rg18-for-heavy-metal-desorption
#2
Jianrong Wu, Jingbo Zhang, Panpan Wang, Li Zhu, Minjie Gao, Zhiyong Zheng, Xiaobei Zhan
Foaming problem and cost of substrate limit the commercial application of rhamnolipids, a potential biosurfactant produced by Pseudomonas aeruginosa. We explored the production of rhamnolipids by a semi-solid-state (SSS) fermentation strategy with glycerol as carbon source and rapeseed/wheat bran as matrix, along with the capacity of the produced rhamnolipids to solubilize lead and cadmium in aqueous solution. Structural analysis by MALDI-TOF MS indicated the increased proportion of mono-rhamnolipids from SSS fermentation...
August 12, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/28800848/cold-generation-of-smoke-flavour-by-the-first-phenolic-acid-decarboxylase-from-a-filamentous-ascomycete-isaria-farinosa
#3
Diana Linke, Stephanie J L Riemer, Silke Schimanski, Annabel Nieter, Ulrich Krings, Ralf G Berger
A decarboxylase (IfPAD) from the ascomycete Isaria farinosa converted ferulic acid to 4-vinylguaiacol (4-VG), a volatile which imparts the distinct "smoke flavor" of pyrolized wood. The activity was enhanced by adding (E)-ferulic acid to the culture medium and peaked with 3.6 U g(-1) mycelium (1 μmol 4-VG min(-1)). The coding sequence of 543 bp was translated into a 25 kDa protein with a homology of 91 % to putative phenolic acid decarboxylases of its teleomorph, Cordyceps militaris, and Beauveria bassiana, the anamorph of Cordyceps bassiana...
September 2017: Fungal Biology
https://www.readbyqxmd.com/read/28794212/addition-of-rye-bran-and-pea-fiber-to-pork-meatballs-enhances-subjective-satiety-in-healthy-men-but-does-not-change-glycemic-or-hormonal-responses-a-randomized-crossover-meal-test-study
#4
Ursula Kehlet, Josephine Kofod, Jens J Holst, Christian Ritz, Margit D Aaslyng, Anne Raben
Background: The development of high-protein, fiber-rich foods targeting appetite control could be an efficient tool in obesity prevention.Objectives: We investigated whether ad libitum energy intake (EI), appetite, and metabolic markers in a meal context were affected by 1) fiber addition (rye bran and pea fiber) to pork meatballs, 2) the food matrix of the fiber (fiber meatballs compared with fiber bread), or 3) the protein source (animal compared with vegetable protein patties).Methods: In a crossover design, 40 healthy men [mean ± SD: body mass index (BMI; in kg/m(2)), 22...
August 9, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28780262/production-of-poly-%C3%AE-l-malic-acid-by-aureobasidium-pullulans-ha-4d-under-solid-state-fermentation
#5
Jun Xia, Rongqing Li, Aiyong He, Jiaxing Xu, Xiaoyan Liu, Xiangqian Li, Jiming Xu
Poly(β-l-malic acid) (PMA) production by Aureobasidium pullulans HA-4D was carried out through solid-state fermentation (SSF) using agro-industrial residues. Maximum PMA production (75.4mg/g substrate) was obtained from a mixed substrate of sweet potato residue and wheat bran (1:1, w/w) supplemented with NaNO3 (0.8%, w/w) and CaCO3 (2%, w/w), with an initial moisture content of 70% and inoculum size of 13% (v/w) for 8days. Repeated-batch SSF was successfully conducted for 5 cycles with a high productivity...
July 27, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28763015/effect-of-non-dairy-food-matrices-on-the-survival-of-probiotic-bacteria-during-storage
#6
Min Min, Craig R Bunt, Susan L Mason, Grant N Bennett, Malik A Hussain
The viability of probiotics in non-dairy food products during storage is required to meet content criteria for probiotic products. This study investigated whether non-dairy foods could be matrices for probiotics. Selected probiotic bacteria were coated on non-dairy foods under two storage conditions, and viabilities were assessed. The non-dairy foods were coated with 5-7 log cfu g(-1) of Lactobacillus acidophilus ATCC4356(T), Lactobacillus plantarum RC30, and Bifidobacterium longum ATCC15707(T). The coated non-dairy foods were stored at 20 °C and 20% relative humidity (RH) or 30 °C and 50% RH...
August 1, 2017: Microorganisms
https://www.readbyqxmd.com/read/28747866/polysaccharide-from-wheat-bran-induces-cytokine-expression-via-the-toll-like-receptor-4-mediated-p38-mapk-signaling-pathway-and-prevents-cyclophosphamide-induced-immunosuppression-in-mice
#7
Ting Shen, Gongcheng Wang, Long You, Liang Zhang, Haiwei Ren, Weicheng Hu, Qian Qiang, Xinfeng Wang, Lilian Ji, Zhengzhong Gu, Xiangxiang Zhao
Wheat bran-derived polysaccharides have attracted particular attention due to their immunomodulatory effects. However, the molecular mechanisms underlying their functions are poorly understood. The current study was designed to examine the effect of wheat bran polysaccharide (WBP) on RAW 264.7 cells and the underlying signaling pathways, which have not been explored. In addition, we also investigated the immuno-enhancement effects of WBP on cyclophosphamide (CTX)-induced immunosuppression in mice. WBP significantly increased the concentrations of intracellular nitric oxide (NO) and cytokines such as prostaglandin E2 (PGE2) and tumor necrosis factor-α (TNF-α) in RAW 264...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/28747827/effect-of-dietary-fiber-enrichment-and-different-cooking-methods-on-quality-of-chicken-nuggets
#8
Ashok K Pathera, C S Riar, Sanjay Yadav, D P Sharma
The effect of dietary fiber enrichment (wheat bran) and cooking methods (oven, steam and microwave) on functional and physico-chemical properties of raw nuggets formulation as well as nutritional, color and textural properties of chicken nuggets were analyzed in this study. Among different cooking methods used for nuggets preparation, steam cooked nuggets had significantly (p<0.05) higher water holding capacity (56.65%), cooking yield (97.16%) and total dietary fiber content (4.32%) in comparison to oven and microwave cooked nuggets...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28747692/new-criteria-for-the-molecular-identification-of-cereal-grains-associated-with-archaeological-artefacts
#9
Andre Carlo Colonese, Jessica Hendy, Alexandre Lucquin, Camilla F Speller, Matthew J Collins, Francesco Carrer, Regula Gubler, Marlu Kühn, Roman Fischer, Oliver E Craig
The domestication and transmission of cereals is one of the most fundamental components of early farming, but direct evidence of their use in early culinary practices and economies has remained frustratingly elusive. Using analysis of a well-preserved Early Bronze Age wooden container from Switzerland, we propose novel criteria for the identification of cereal residues. Using gas chromatography mass spectrometry (GC-MS), we identified compounds typically associated with plant products, including a series of phenolic lipids (alkylresorcinols) found only at appreciable concentration in wheat and rye bran...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28743065/enantiomerization-and-stereoselectivity-in-bioaccumulation-of-furalaxyl-in-tenebrio-molitor-larvae
#10
Jing Yin, Yongxin Gao, Feilong Zhu, Weiyu Hao, Qi Xu, Huili Wang, Baoyuan Guo
Furalaxyl is a chiral pesticide and widely used in modern agriculture as racemate mixture. The enantiomerization and enantioselecive bioaccumulation by a single dose of furalaxyl to Tenebrio molitor larvae under laboratory conditions were studied using a high-performance liquid chromatography tandem mass spectroscopy method based on a ChiralPAK IC column. Our results showed that a significant enantiomerization (interconversion between R-enantiomer and S-enantiomer) was observed in Tenebrio molitor larvae under R- or S-furalaxyl exposure...
July 22, 2017: Ecotoxicology and Environmental Safety
https://www.readbyqxmd.com/read/28742221/effects-of-concentrated-and-dephytinized-wheat-bran-and-rice-bran-addition-on-bread-properties
#11
Berrin Özkaya, Burcu Baumgartner, Hazim Özkaya
Wheat bran and rice bran were concentrated in terms of dietary fiber and were dephytinized by two different methods (fermentation and hydrothermal). Untreated, concentrated, concentrated-dephytinized by fermentation method, and concentrated-dephytinized by hydrothermal method bran samples were each incorporated into flour at levels of 0%, 10%, 15%, and 20%, and their effects on bread properties were investigated. Unprocessed wheat bran and rice bran addition decreased the volume yield, and the specific volume of the bread depends on the incorporation level...
July 25, 2017: Journal of Texture Studies
https://www.readbyqxmd.com/read/28733762/reconsidering-betaine-as-a-natural-anti-heat-stress-agent-in-poultry-industry-a-review
#12
REVIEW
Muhammad Saeed, Daryoush Babazadeh, Muhammad Naveed, Muhammad Asif Arain, Faiz Ul Hassan, Sun Chao
Betaine is found ubiquitously in plants, animals, microorganisms, and rich dietary sources including seafood, spinach, and wheat bran. The chief physiological role of betaine is to function as a methyl donor and an osmolyte. Betaine also acts as an osmolyte, to maintain the avian's cellular water and ion balance to improve the avian's capacity against heat stress via preventing dehydration and osmotic inactivation. It helps in maintaining the protective osmolytic activity, especially in heat-stressed birds...
July 21, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28732724/recombinant-bacillus-amyloliquefaciens-xylanase-a-expressed-in-pichia-pastoris-and-generation-of-xylooligosaccharides-from-xylans-and-wheat-bran
#13
Ming-Qi Liu, Wen-Kang Huo, Xin Xu, Xiao-Yan Weng
In this study, BaxA (GenBank: KM624029), which encodes the Bacillus amyloliquefaciens xylanase A (BaxA), was highly expressed in Pichia pastoris GS115 under the control of the AOX1 promoter. The recombinant xylanase, namely rePBaxA, was purified to homogeneity by using Ni-affinity resin and its molecular weight was 35.0kDa. The optimum temperature and pH of rePBaxA were 50°C and 5.0, respectively. The kinetic parameters Michaelis-Menten constant (Km) and maximum reaction rate (Vmax) of rePBaxA were 5.41mg/mL and 22...
July 18, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28728365/effects-of-inclusion-level-and-adaptation-period-on-nutrient-digestibility-and-digestible-energy-of-wheat-bran-in-growing-finishing-pigs
#14
Jinbiao Zhao, Shuai Zhang, Fei Xie, Defa Li, Chengfei Huang
Objective: This experiment was to evaluate the effect of different inclusion levels and adaptation periods on digestible energy (DE) and the apparent total tract digestibility (ATTD) of chemical constituents in diets supplemented with wheat bran. Methods: Thirty-six crossbred barrows with an initial body weight (BW) of 85.0 ± 2.1 kg were allotted to 6 diets in a completely randomized block design with 6 pigs per diet. Diets included a corn-soybean basal diet and 5 additional diets which formulated by replacing corn and soybean meal in control diet with 15, 25, 35, 45, or 55% wheat bran...
June 27, 2017: Asian-Australasian Journal of Animal Sciences
https://www.readbyqxmd.com/read/28717237/fat-binding-capacity-and-modulation-of-the-gut-microbiota-both-determine-the-effect-of-wheat-bran-fractions-on-adiposity
#15
Francesco Suriano, Laure B Bindels, Joran Verspreet, Christophe M Courtin, Kristin Verbeke, Patrice D Cani, Audrey M Neyrinck, Nathalie M Delzenne
The aim of this study was to determine the impact of different wheat bran fractions on the gut microbiota and fat binding capacity to explain their differential effects on metabolic and inflammatory disorders induced by a western diet (WD) in mice. Wheat bran derived arabinoxylan oligosaccharides (AXOS), a crude fraction of wheat bran (WB), or the same wheat bran with reduced particle size (WBs) were added to the WD of mice for 8 weeks. AXOS shifted the gut microbiota composition, blunted Clostridium and Turicibacter genera and strongly promoted Bifidobacterium and Butyricicoccus genera, independently of changes in gut antimicrobial peptide expression...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28698485/dynamic-fumonisin-b%C3%A2-production-by-aspergillus-niger-intented-used-in-food-industry-in-china
#16
Xiaomin Han, Hongru Jiang, Jin Xu, Jing Zhang, Fengqin Li
There are a total of 30 strains including 27 strains of Aspergillus niger intended used in Chinese food industry, two strains used as control and one strain isolated from corn for fumonisin (FB) production on 3 media. It was found that FB₂ production by A. niger was function-dependent and highly related to culture media, as well as incubation time. All strains studied were unable to produce FB₁ and FB₃. Almost all strains were found to produce FB₂ on corn, rice and wheat bran. Based on their intended use in the food industry, the higher level of FB₂ producers were strains used for saccharifying enzyme (n = 13) production, followed by organic acid (n = 6), tannase (n = 7) and β-galactosidase (n = 1) production, with the FB₂ mean level of 3553-10,270 μg/kg, 1059-12,036 μg/kg, 3-7 μg/kg and 2-4 μg/kg on corn, 5455-9241 μg/kg, 559-2190 μg/kg, 4-9 μg/kg and 6-10 μg/kg on rice, 5959-7709 μg/kg, 9491-17,339 μg/kg, 8-14 μg/kg and 120-222 μg/kg on wheat bran, respectively...
July 9, 2017: Toxins
https://www.readbyqxmd.com/read/28697583/the-gut-microbiota-in-larvae-of-the-housefly-musca-domestica-and-their-horizontal-transfer-through-feeding
#17
Yao Zhao, Wanqiang Wang, Fen Zhu, Xiaoyun Wang, Xiaoping Wang, Chaoliang Lei
House fly larvae provide a prolific and sustainable source of proteins used in poultry and fish feed. Wheat bran is a superior diet for house fly larvae and has been widely investigated to exploit its potential in the food and feed area. Using Illumina MiSeq 16S rDNA sequencing, this study investigated the gut microbiota of house fly larvae feeding on wheat bran and the bacterial community in the wheat bran. The bacterial communities in the house fly larvae were dominated by the phyla Proteobacteria and Firmicutes...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28690170/polyhydroxybutyrate-by-streptomyces-sp-production-and-characterization
#18
Sivakumar Krishnan, Gandhi Shree Chinnadurai, Palani Perumal
A total number of 20 actinomycetes isolates were isolated from soil sediments obtained from Semmancheri coastal areas of Bay of Bengal, India and they were qualitatively screened for the production of polyhydroxybutyrate (PHB) on a medium containing Sudan black stain. Nine of the 20 isolates produced PHB and the quantity of PHB produced varied from 1.79 to 4.26g(-L). Among the positive isolates an actinomycete isolate which was identified as Streptomyces sp. through 16S rRNA sequencing analysis (Accession No: KF667247) produced relatively higher PHB than other positive isolates...
July 6, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/28687934/co-administration-of-a-konjac-based-fibre-blend-and-american-ginseng-panax-quinquefolius-l-on-glycaemic-control-and-serum-lipids-in-type-2-diabetes-a-randomized-controlled-cross-over-clinical-trial
#19
Alexandra L Jenkins, Linda M Morgan, Jacqueline Bishop, Elena Jovanovski, David J A Jenkins, Vladimir Vuksan
PURPOSE: Use of polypharmacy in the treatment of diabetes is the norm; nonetheless, optimal control is often not achieved. Konjac-glucomannan-based fibre blend (KGB) and American ginseng (AG) have individually been shown to improve glycaemia and CVD risk factors in type 2 diabetes. The aim of this study was to determine whether co-administration of KGB and AG could improve diabetes control beyond conventional treatment. METHOD: Thirty-nine participants with type 2 diabetes (6...
July 7, 2017: European Journal of Nutrition
https://www.readbyqxmd.com/read/28669823/biochemical-and-structural-analyses-of-two-cryptic-esterases-in-bacteroides-intestinalis-and-their-synergistic-activities-with-cognate-xylanases
#20
Daniel Wefers, Janaina J V Cavalcante, Rachel R Schendel, Jaigeeth Deveryshetty, Kui Wang, Zdzislaw Wawrzak, Roderick I Mackie, Nicole M Koropatkin, Isaac Cann
Arabinoxylans are constituents of the human diet. Although not utilizable by the human host, they can be fermented by colonic bacteria. The arabinoxylan backbone is decorated with arabinose side chains that may be substituted with ferulic acid, thus limiting depolymerization to fermentable sugars. We investigated the polypeptides encoded by two genes upregulated during growth of the colonic bacterium Bacteroides intestinalis on wheat arabinoxylan. The recombinant proteins, designated BiFae1A and BiFae1B, were functionally assigned esterase activities...
August 4, 2017: Journal of Molecular Biology
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