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https://www.readbyqxmd.com/read/28917931/extraction-of-soluble-arabinoxylan-from-enzymatically-pretreated-wheat-bran-and-production-of-short-xylo-oligosaccharides-and-arabinoxylo-oligosaccharides-from-arabinoxylan-by-glycoside-hydrolase-family-10-and-11-endoxylanases
#1
Sindhu Mathew, Eva Nordberg Karlsson, Patrick Adlercreutz
The enzymatic, ecofriendly pretreatment of wheat bran with α-amylase from Bacillus amyloliquifaciens or B. licheniformis at 90°C for 1.5h followed by Neutrase at 50°C for 4h, aqueous liquefaction at 121°C for 15h and ethanol precipitation enabled the production of soluble arabinoxylan (AX) with purity of 70.9% and 68.4% (w/w) respectively. Process alternatives tried, to simplify the process and curtail the cost resulted in AX products with different purities, yields and arabinose to xylose ratio (A/X). Among the two glycoside hydrolase (GH) family endoxylanases evaluated, GH10 family hydrolysed soluble AX more efficiently with xylanase from Geobacillus stearothermophilus T-6 (GsXyn10A) producing maximum amount of quantifiable short xylo-oligosaccharides (XOS) and arabinoxylo-oligosaccharides (AXOS) (53% w/w) followed by the catalytic module of Rhodothermus marinus Xyn10A (RmXyn10A-CM) with 37% (w/w) conversion...
September 13, 2017: Journal of Biotechnology
https://www.readbyqxmd.com/read/28917871/inhibition-of-gelatinized-rice-starch-retrogradation-by-rice-bran-protein-hydrolysates
#2
Liya Niu, Leiyan Wu, Jianhui Xiao
The retrogradation of gelatinized rice starch (GRS) during the shelf life of a product is the biggest barrier related to starch-containing foods. The objective of this study was to produce rice bran protein hydrolysate (RBPH) using proteolytic enzymes (alcalase, flavourzyme, protamex, neutrase, bromelain, papain and trypsin) to suppress the retrogradation of GRS and understand the physical phenomena underlying the reduced retrogradation of GRS by RBPH during short- and long-term storage. Mixtures of GRS incorporated with Protamex-hydrolyzed rice bran protein at 1h (PRBPH-1) at a degree of hydrolysis of 15...
November 1, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28914423/influences-of-nitrogen-fertilization-and-energy-supplementation-for-growth-perfomance-of-beef-cattle-on-alexander-grass
#3
Tiago Venturini, Luís Fernando Glasenapp de Menezes, Marcelo Marcos Montagner, Wagner Paris, Gean Rodrigo Schmitz, Marcos Luis Molinete
This study evaluated the influences of nitrogen fertilizer and energy supplementation cattle on the growth performance of beef cattle. This study was conducted at the Federal University of Technology of Paraná, Dois Vizinhos through continuous grazing on 6.3 ha, divided into nine paddocks. The treatments were: Alexander grass +100 kg ha(-1) of N (N100); Alexander grass + 100 kg ha(-1) of N + 0.5 kg per 100 kg of weight live supplementation of wheat bran (N100S); and Alexander grass +200 kg ha(-1) of N (N200), with an average herbage allowance of 10% for all treatments...
September 15, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28912534/multisegmented-nanowires-a-step-towards-the-control-of-the-domain-wall-configuration
#4
E Berganza, M Jaafar, C Bran, J A Fernández-Roldán, O Chubykalo-Fesenko, M Vázquez, A Asenjo
Cylindrical nanowires synthesized by controlled electrodeposition constitute excellent strategic candidates to engineer magnetic domain configurations. In this work, multisegmented CoNi/Ni nanowires are synthesized for tailoring a periodic magnetic structure determined by the balance between magnetocrystalline and magnetostatic energies. High-resolution Transmission Electron Microscopy confirms the segmented growth and the sharp transition between layers. Although both CoNi and Ni segments have similar fcc cubic crystal symmetry, their magnetic configuration is quite different as experimentally revealed by Magnetic Force Microscopy (MFM) imaging...
September 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28903871/prevalence-and-risk-factors-for-transition-period-diseases-in-grazing-dairy-cows-in-brazil
#5
Rolnei R Daros, Maria J Hötzel, Jose A Bran, Stephen J LeBlanc, Marina A G von Keyserlingk
The aim of this cross-sectional study was to describe the incidence risk of dystocia, retained placenta (RP), pathological recumbence (down cow), the prevalence of metritis and subclinical ketosis (SCK), and the risk factors for SCK, metritis, and RP in grazing dairy herds in Southern Brazil. Fifty-three herds were visited 2-6 times from February to October of 2015. Body condition score (BCS), breed, days in milk (DIM), parity and disease status were recorded for each cow that was between 3 and 21 DIM at the time of the visits...
September 15, 2017: Preventive Veterinary Medicine
https://www.readbyqxmd.com/read/28900905/biodegradation-of-ramie-stalk-by-flammulina-velutipes-mushroom-production-and-substrate-utilization
#6
Chunliang Xie, Wenbing Gong, Li Yan, Zuohua Zhu, Zhenxiu Hu, Yuande Peng
In the textile industry, ramie stalk is byproducts with a low economic value. The potential use of this leftover as a substrate ingredient for Flammulina velutipes (F. velutipe) cultivation was evaluated. The degradation and utilization of ramie stalk by F. velutipes was evaluated through mushroom production, lignocelluloses degradation and lignocellulolytic enzymes activity. The best substrate mixture for F. velutipes cultivation comprised 50% ramie stalk, 20% cottonseed hulls, 25% wheat bran, 4% cornstarch and 2% CaCO3...
September 12, 2017: AMB Express
https://www.readbyqxmd.com/read/28892684/mild-temperature-dilute-acid-pretreatment-for-integration-of-first-and-second-generation-ethanol-processes
#7
Ramkumar B Nair, Mahdi Kalif, Jorge A Ferreira, Mohammad J Taherzadeh, Patrik R Lennartsson
The use of hot-water (100°C) from the 1st generation ethanol plants for mild-temperature lignocellulose pretreatment can possibly cut down the operational (energy) cost of 2nd generation ethanol process, in an integrated model. Dilute-sulfuric and -phosphoric acid pretreatment at 100°C was carried out for wheat bran and whole-stillage fibers. Pretreatment time and acid type influenced the release of sugars from wheat bran, while acid-concentration was found significant for whole-stillage fibers. Pretreatment led up-to 300% improvement in the glucose yield compared to only-enzymatically treated substrates...
August 24, 2017: Bioresource Technology
https://www.readbyqxmd.com/read/28888041/supplementation-with-the-methyl-donor-betaine-prevents-congenital-defects-induced-by-prenatal-alcohol-exposure
#8
Ganga Karunamuni, Megan M Sheehan, Yong Qiu Doughman, Shi Gu, Jiayang Sun, Youjun Li, James P Strainic, Andrew M Rollins, Michael W Jenkins, Michiko Watanabe
BACKGROUND: Despite decades of public education about dire consequences of prenatal alcohol exposure, drinking alcohol during pregnancy remains prevalent. As high as 40% of live-born infants exposed to alcohol during gestation and diagnosed with Fetal Alcohol Syndrome have congenital heart defects that can be life-threatening. In animal models, the methyl donor betaine, found in foods such as wheat bran, quinoa, beets and spinach, ameliorated neurobehavioral deficits associated with prenatal alcohol exposure (PAE) but effects on heart development are unknown...
September 9, 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28886263/functional-peptides-derived-from-rice-bran-proteins
#9
Y Q Liu, P Strappe, W T Shang, Z K Zhou
Rice bran has been predominantly used in the feed industry, and only recently it has attracted greater attention in terms of human nutrition with increasing knowledge of its bioactivity. A growing interest is the analysis of physiologically active peptides derived from rice bran proteins. In this paper, the bioactivities of rice bran proteins hydrolysates and peptides are reviewed based on recent studies. These enzymatic hydrolysates and peptides exert various biological activities including antioxidant, antidiabetic, anticancer and inhibitory activity for angiotensin converting enzyme (ACE), which may ultimately prevent certain chronic diseases...
September 8, 2017: Critical Reviews in Food Science and Nutrition
https://www.readbyqxmd.com/read/28884952/soluble-dietary-fiber-reduces-trimethylamine-metabolism-via-gut-microbiota-and-co-regulates-host-ampk-pathways
#10
Qian Li, Tao Wu, Rui Liu, Min Zhang, Ruijun Wang
SCOPE: Evidence from animal experiments and clinical medicine suggest that high dietary fiber intake, followed by gut microbiota-mediated fermentation, decreases trimethylamine (TMA) metabolism, the mechanism of which, however, remains unclear. The objective of this analysis was to evaluate, using mice fed with red meat, the effects of soluble dietary fiber (SDF) intervention on TMA metabolism. METHODS AND RESULTS: Low- or high-dose soluble dietary fiber (SDF) from natural wheat bran (LN and HN, low- and high-dose natural SDF), fermented wheat bran (LF and HF, low- and high-dose fermented SDF), and steam-exploded wheat bran (LE and HE, low- and high-dose exploded SDF groups) were used to examine whether SDF interventions in mice fed with red meat can alter TMA and trimethylamine N-oxide (TMAO) metabolism by gut microbial communities in a diet-specific manner...
September 8, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/28879835/the-nutritional-quality-of-new-zealand-breakfast-cereals-an-update
#11
Lynne Chepulis, Shaunie Hill, Gael Mearns
OBJECTIVE: To compare the nutritional quality of New Zealand breakfast cereals in 2013 and 2017. DESIGN: Nutrition Information Panel data were collected from all cereals available from two large supermarket chains in 2017 and compared with earlier published data collected in 2013. SETTING: Urban New Zealand supermarkets. SUBJECTS: The nutritional content of breakfast cereals ('biscuits and bites', 'brans', 'bubbles, flakes and puffs', 'children's cereals', 'muesli' and 'oats') was analysed for total energy, protein, fat (total and saturated), carbohydrate, sugar, fibre and Na...
September 7, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/28873583/analysis-of-polyphenols-in-brewer-s-spent-grain-and-its-comparison-with-corn-silage-and-cereal-brans-commonly-used-for-animal-nutrition
#12
Flávia Santi Stefanello, Clarissa Obem Dos Santos, Vivian Caetano Bochi, Ana Paula Burin Fruet, Marcela Bromenberg Soquetta, Andréa Cristina Dörr, José Laerte Nörnberg
Brewer's spent grain (BSG) could be tested as an alternative source of polyphenols in animal nutrition. Proper extraction and analytical methods are critical for quantification. Thus, extraction for BSG, corn silage, and brans of rice, corn, and wheat were studied for the highest yield of polyphenols. A method for 18 phenolic monomers by HPLC-DAD was developed, validated, and applied to samples. An aqueous solution of NaOH (0.75% w/v) using integral samples for extraction resulted in the highest values for colorimetric measurements in all analyzed sources...
January 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28873568/phenolic-contents-cellular-antioxidant-activity-and-antiproliferative-capacity-of-different-varieties-of-oats
#13
Chao Chen, Li Wang, Ren Wang, Xiaohu Luo, Yongfu Li, Juan Li, Yanan Li, Zhengxing Chen
The objectives of this research were to determine the phenolic contents, oxygen radical absorbance capacities (ORAC), cellular antioxidant activities (CAA), and antiproliferative capacities of nine oat varieties and four brans in China. Of all varieties, Longyan 3 and Beiyan 1 exhibited the highest total avenanthramides (146.94±7.31 and 120.95±6.66µg/g, respectively) and ORAC values (21.03±0.56 and 21.18±1.45µM Trolox/g, respectively), while Shaotong exhibited the highest total phenolic acids (143.52±9...
January 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28870011/inhibitory-effect-of-an-ethanol-extract-of-a-rice-bran-mixture-including-angelica-gigas-cnidium-officinale-artemisia-princeps-and-camellia-sinensis-on-brucella-abortus-uptake-by-professional-and-non-professional-phagocytes
#14
Huynh Tan Hop, Lauren Togonon Arayan, Alisha Wehdnesday Bernardo Reyes, Tran Xuan Ngoc Huy, Eun Jin Baek, WonGi Min, Hu Jang Lee, Chun Hee Lee, Man Hee Rhee, Suk Kim
In this study, we evaluated the inhibitory effect of a rice bran mixture extract (RBE) on Brucella (B.) abortus pathogenesis in professional (RAW 264.7) and non-professional (HeLa) phagocytes. We fermented the rice bran mixture and then extracted with 50% ethanol followed by gas chromatography-mass spectrometry to identify components in RBE. Our results clearly showed that RBE caused a significant reduction in the adherence of B. abortus in both cell lines. Furthermore, analysis of phagocytic signaling proteins by Western blot revealed that RBE pretreatment resulted in inhibition of phosphorylation of JNK, ERK and p38, leading to decline of internalization compared with the controls...
September 5, 2017: Journal of Microbiology and Biotechnology
https://www.readbyqxmd.com/read/28869259/anti-hyperlipidemic-effect-of-rice-bran-polysaccharide-and-its-potential-mechanism-in-high-fat-diet-mice
#15
Ying Nie, Feijun Luo, Long Wang, Tao Yang, Limin Shi, Xinhua Li, Junjun Shen, Wei Xu, Ting Guo, Qinlu Lin
Hyperlipidemia occurs very often in modern society along with a high calorie intake and is regarded as one of the greatest risk factors for the prevalence of cardiac vascular disease (CVD). In this study, we investigated the anti-hyperlipidemic effect of the rice bran polysaccharides (RBP) and its mechanism in a high fat diet animal model. 60 ICR mice were randomly divided into 3 groups, which included Control, HFD (high fat diet) and HFD + RBP, and each group included 20 mice. The control group was fed with a standard diet while the other two groups were fed with HFD...
September 4, 2017: Food & Function
https://www.readbyqxmd.com/read/28868223/enzymatic-saccharification-of-seaweeds-into-fermentable-sugars-by-xylanase-from-marine-bacillus-sp-strain-bt21
#16
Pankaj Parab, Rakhee Khandeparker, Ujwala Amberkar, Vishwas Khodse
Enzymatic hydrolysis of seaweed biomass was studied using xylanase produced from marine bacteria Bacillus sp. strain BT21 through solid-state fermentation of wheat bran. Three types of seaweeds, Ahnfeltia plicata, Padina tetrastromatica and Ulva lactuca, were selected as representatives of red, brown, and green seaweeds, respectively. Seaweed biomass was pretreated with hot water. The efficiency of pretreated biomass to release reducing sugar by the action of xylanase as well as the type of monosaccharide released during enzyme saccharification of seaweed biomass was studied...
October 2017: 3 Biotech
https://www.readbyqxmd.com/read/28867950/extracellular-alkaline-lipase-from-a-novel-fungus%C3%A2-curvularia-sp-dhe-5-optimisation-of-physicochemical-parameters-partial-purification-and-characterisation
#17
Dina Helmy El-Ghonemy, Mamdouh S El-Gamal, Amir Elsayed Tantawy, Thanaa Hamed Ali
Thirty isolated fungal strains were screened for lipase production using Phenol Red plates, containing tributyrin as lipidic substrate, and a novel fungus identified genetically as Curvularia sp. DHE 5 was found as the most prominent strain. Various agro-industrial substrates were evaluated as inert supports for lipase production in solid-state fermentation. The highest yield of lipase ((83.4±2.2) U/g on dry mass basis) was reported with wheat bran medium after seven days of fermentation at pH=7.0, temperature of 30 °C, 70% moisture content, inoculum size of 1...
June 2017: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/28867946/recombinant-xylanase-from-bacillus-tequilensis-bt21-biochemical-characterisation-and-its-application-in-the-production-of-xylobiose-from-agricultural-residues
#18
Rakhee Khandeparker, Pankaj Parab, Ujwala Amberkar
Bacterial strain Bacillus tequilensis BT21 isolated from marine sediments was found to produce extracellular xylanase. The xynBT21 gene encoding xylanase enzyme was cloned and expressed in Escherichia coli. The gene encoded a protein consisting of 213 amino acid residues with calculated molecular mass of 23.3 kDa. Purified recombinant xylanase had optimum activity at 60 °C and pH=6. The enzyme was highly stable in alkaline pH, at pH=7 it remained 100% active for 24 h, while its activity increased at pH=8 and 9 during incubation...
June 2017: Food Technology and Biotechnology
https://www.readbyqxmd.com/read/28867765/breakfast-cereal-consumption-and-obesity-risk-amongst-the-mid-age-cohort-of-the-australian-longitudinal-study-on-women-s-health
#19
Angelica Quatela, Robin Callister, Amanda J Patterson, Mark McEvoy, Lesley K MacDonald-Wicks
Obesity affects 27.5% of Australian women. Breakfast cereal consumption has been proposed to be protective against obesity. This study investigated the association of breakfast cereal consumption with the risk of developing obesity (Body Mass Index (BMI) ≥ 30 kg/m²) over 12 years among mid-age participants in the Australian Longitudinal Study on Women's Health (ALSWH). Dietary data were obtained at S3 and obesity incidence at S4-S7. Women were excluded if: dietary data were incomplete, energy intake was <4500 or >20,000 kJ/day, or they reported being overweight or obese at S3...
August 30, 2017: Healthcare (Basel, Switzerland)
https://www.readbyqxmd.com/read/28867107/fatty-acid-profile-of-edible-oils-and-fats-consumed-in-india
#20
Charles Dorni, Paras Sharma, Gunendra Saikia, T Longvah
A total 320 samples of edible oils and fats (Oils-236; Vanaspati- 45; Ghee-39) were sampled from 107 sampling sites in India and were evaluated for their fatty acid profile. This is the first comprehensive report on fatty acids profile of fats & oil commonly consumed in India. Every variety of edible oil showed its own unique fatty acid profile with significant variation within each individual fatty acid. Pure safflower oil exhibited the highest total TPUFA (76.78%) while the highest TSFA was noticed for coconut oil (90...
January 1, 2018: Food Chemistry
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