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https://www.readbyqxmd.com/read/29349547/heterologous-expression-of-two-aspergillus-niger-feruloyl-esterases-in-trichoderma-reesei-for-the-production-of-ferulic-acid-from-wheat-bran
#1
Liangkun Long, Haoyuan Zhao, Dafan Ding, Meijuan Xu, Shaojun Ding
Feruloyl esterase (FAE)-encoding genes AnfaeA and AnfaeB were isolated from Aspergillus niger 0913. For overexpression of the two genes in Trichoderma reesei, constitutive and inductive expression plasmids were constructed based on parental plasmid pAg1-H3. The constructed plasmids contained AnfaeA or AnfaeB gene under the control of glyceraldehyde-3-phosphate dehydrogenase A gene (gpdA) promoter (from A. nidulans) or cellobiohydrolases I (cbh I) gene promoter (from T. reesei), and cbh I terminator from T. reesei...
January 18, 2018: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/29346313/a-comparison-of-the-chemical-composition-in-vitro-bioaccessibility-and-antioxidant-activity-of-phenolic-compounds-from-rice-bran-and-its-dietary-fibres
#2
Guanghe Zhao, Ruifen Zhang, Lihong Dong, Fei Huang, Lei Liu, Yuanyuan Deng, Yongxuan Ma, Yan Zhang, Zhencheng Wei, Juan Xiao, Mingwei Zhang
The composition, in vitro bioaccessibility and antioxidant activities of the phenolic compounds in defatted rice bran (DRB) and its soluble and insoluble dietary fibres were systematically evaluated in this study. The total phenolic content of insoluble dietary fibre from DRB (IDFDRB) was much higher than that of the soluble dietary fibre from DRB (SDFDRB) but was 10% lower than that of DRB. Bound phenolics accounted for more than 90% of the total phenolics in IDFDRB, whereas they accounted for 34.2% and 40...
January 18, 2018: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29336910/bioconversion-of-hemicellulosic-materials-into-ethanol-by-yeast-pichia-kudriavzevii-2-klp1-isolated-from-industrial-waste
#3
Amina Elahi, Abdul Rehman
In the present work, a yeast strain Pichia kudriavzevii was identified on the basis of 18S rDNA, showing maximum growth at 30°C and pH 7.0. Among all the complex polysaccharides used, wheat bran proved to be the best substrate as indicated by the maximum growth of the yeast strain. The yeast isolate was capable of producing xylanase both intra- and extra-cellularly, the dominant form being extracellular. The maximum enzyme activity was determined at pH 5.0 and at 50°C. Na+, Mg2+ and Fe2+ presence caused a substantial increase in enzyme activity while a slight decrease (4...
January 11, 2018: Revista Argentina de Microbiología
https://www.readbyqxmd.com/read/29334221/extracellular-enzyme-composition-and-functional-characteristics-of-aspergillus-niger-an-76-induced-by-food-processing-byproducts-and-based-on-integrated-functional-omics
#4
Lin Liu, Weili Gong, Xiaomeng Sun, Guanjun Chen, Lushan Wang
Byproducts of food processing can be utilized for the production of high-value-added enzyme cocktails. In this study, we utilized integrated functional-omics technology to analyze composition and functional characteristics of extracellular enzymes produced by Aspergillus niger grown on food processing byproducts. The results showed that oligosaccharides constituted by arabinose, xylose, and glucose in wheat bran were able to efficiently induce the production of extracellular enzymes of A. niger. Compared with other substrates, wheat bran was more effective at inducing the secretion of β-glucosidases from GH1 and GH3 families, as well as >50% of proteases from A1-family aspartic proteases...
January 15, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29330814/contrasting-effects-of-alkaline-amendments-on-the-bioavailability-and-uptake-of-cd-in-rice-plants-in-a-cd-contaminated-acid-paddy-soil
#5
Jun Meng, Libin Zhong, Lu Wang, Xingmei Liu, Caixian Tang, Hongjin Chen, Jianming Xu
Reducing cadmium (Cd) concentrations in rice grains is important for food safety, particularly in acid paddy fields in South China where the soils have been previously contaminated with Cd. A field experiment was conducted to evaluate the effects of four alkaline amendments, i.e., lime, compost, biochar, and carbide slag on soil bioavailability and uptake of Cd in plants of two rice cultivars (Oryza sativa L.) in a Cd-contaminated acid paddy soil. The addition of these amendments significantly decreased the concentrations of CaCl2-extractable Cd by 13-41%...
January 12, 2018: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/29329846/nutritionally-enriched-1-3-diacylglycerol-rich-oil-low-calorie-fat-with-hypolipidemic-effects-in-rats
#6
B L A Prabhavathi Devi, K N Gangadhar, R B N Prasad, D Sugasini, Y Poorna Chandra Rao, B R Lokesh
An enzymatic process was developed for the preparation of a nutritionally enriched 1,3-diacylglycerol(DAG)-rich oil from a blend of refined sunflower and rice bran oils. The process involves hydrolysis of vegetable oil blend using Candida cylindracea followed by esterification with glycerol using Lipozyme RM1M. The resultant DAG-rich oil contains 84% of DAG (66% of 1,3-DAG, 18% of 1,2-DAG) and 16% of triacylglycerol (TAG) along with micro nutrients like γ-oryzanol, tocotrienols, tocopherols and phytosterols...
May 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29327790/iron-encapsulation-in-water-in-oil-emulsions-effect-of-ferrous-sulfate-concentration-and-fat-crystal-formation-on-oxidative-stability
#7
Nattapong Prichapan, David Julian McClements, Utai Klinkesorn
Iron deficiency is a major global human health concern. Encapsulation of iron in functional food products may help to solve this problem. However, iron is highly reactive and may promote rapid lipid oxidation in fatty foods. In this study, the effect of ferrous sulfate (0.1 to 0.5 wt%) and rice bran stearin (0 or 30 wt%) on the physical properties, oxidative stability, and encapsulation efficiency of 20 wt% water-in-oil (W/O) emulsions stabilized with polyglycerol polyricinoleate was investigated. In the presence of rice bran stearin crystals in the continuous oil phase, W/O emulsions had smaller mean droplet diameters (d ∼ 250 nm) and better physical stability than its absence (d ∼ 330 nm)...
January 12, 2018: Journal of Food Science
https://www.readbyqxmd.com/read/29327584/gama-aminobutyric-acid-enriched-rice-bran-diet-attenuates-insulin-resistance-and-balances-energy-expenditure-via-modification-of-gut-microbiota-and-scfas
#8
Xu Si, Wenting Shang, Zhongkai Zhou, Guanghou Shui, Sin Man Lam, Christopher L Blanchard, Padraig Strappe
In this study, gama-aminobutyric acid (GABA) enriched rice bran (ERB) was supplemented to obese rats to investigate the attenuation of metabolic syndromes induced by high-fat diet. ERB-containing diet stimulated butyrate and propionate production by promoting Anaerostipes, Anaerostipes sp. and associated synthesizing enzymes. This altered SCFA distribution further enhanced circulatory levels of leptin and glucagon-like peptide-1, controlling food intake by down-regulating orexigenic factors. Together with the enhanced fatty acid β-oxidation highlighted by Prkaa2, Ppara, Scd1 expression via AMPK signaling pathway and Non-alcoholic fatty liver disease pathway, energy expenditure was positively modulated...
January 12, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29326295/randomised-controlled-trial-of-escitalopram-for-cervical-dystonia-with-dystonic-jerks-tremor
#9
Evelien Zoons, Jan Booij, Catherine C S Delnooz, Joke M Dijk, Yasmine E M Dreissen, Johannes H T M Koelman, Sandra M A van der Salm, Matej Skorvanek, Marenka Smit, Majid Aramideh, Henriette Bienfait, Agnita J W Boon, Jeroen W M Brans, Edo Hoogerwaard, Ad Hovestadt, Daan J Kamphuis, Alexander G Munts, Johannes D Speelman, Marina A J Tijssen
OBJECTIVE: Trials for additional or alternative treatments for cervical dystonia (CD) are scarce since the introduction of botulinum neurotoxin (BoNT). We performed the first trial to investigate whether dystonic jerks/tremor in patients with CD respond to the selective serotonin reuptake inhibitor (SSRI) escitalopram. METHODS: In a randomised, double-blind, crossover trial, patients with CD received escitalopram and placebo for 6 weeks. Treatment with BoNT was continued, and scores on rating scales regarding dystonia, psychiatric symptoms and quality of life (QoL) were compared...
January 11, 2018: Journal of Neurology, Neurosurgery, and Psychiatry
https://www.readbyqxmd.com/read/29322581/technical-implementations-of-light-sheet-microscopy
#10
REVIEW
Zagato Elisa, Brans Toon, Stefaan C De Smedt, Remaut Katrien, Neyts Kristiaan, Braeckmans Kevin
Fluorescence-based microscopy is among the most successful methods in biological studies. It played a critical role in the visualization of subcellular structures and in the analysis of complex cellular processes, and it is nowadays commonly employed in genetic and drug screenings. Among the fluorescence-based microscopy techniques, light sheet fluorescence microscopy (LSFM) has shown a quite interesting set of benefits. The technique combines the speed of epi-fluorescence acquisition with the optical sectioning capability typical of confocal microscopes...
January 11, 2018: Microscopy Research and Technique
https://www.readbyqxmd.com/read/29320723/comparative-study-of-structural-and-functional-characterization-of-bran-protein-concentrates-from-superfine-fine-and-coarse-rice-cultivars
#11
Tajendra Pal Singh, Dalbir Singh Sogi
Rice bran protein concentrates prepared from superfine, fine and coarse cultivars were assessed for their physicochemical, structural, functional properties and digestibility. The protein concentrates differed in structural, thermal and functional properties. Rice bran protein concentrate of fine cultivar (F-RBPC) had relatively more β-sheets (42.81%) and less α-helix (15.03%) and β-turns (21.98%) than that of superfine (SF-RBPC) and coarse (C-RBPC) cultivars. Thermal denaturation temperature (Td) was similar for all cultivars, whereas enthalpy of denaturation (ΔH) was high for F-RBPC...
January 7, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29313751/a-randomized-double-blind-placebo-controlled-four-arm-parallel-study-investigating-the-effect-of-a-broad-spectrum-wellness-beverage-on-mood-state-in-healthy-moderately-stressed-adults
#12
Malkanthi Evans, Joseph Antony, Najla Guthrie, Bernie Landes, Okezie I Aruoma
OBJECTIVE: The objective of this study was to investigate the effect of a broad-spectrum wellness beverage (Zeal Wellness [ZW]) on standardized measures of mood states, including overall feelings of vitality, in healthy, moderately stressed adults. METHODS: A randomized, double-blind, placebo-controlled clinical trial was conducted among 99 eligible participants prescreened for moderate stress. Participants were randomized to one of four groups and received ZW once daily (1-dose-ZW; 14 g), ZW twice daily (2-dose-ZW; 28 g), placebo once daily (1-dose-placebo), or placebo twice daily (2-dose-placebo) for 4 weeks...
January 9, 2018: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/29302275/rapid-evolution-leads-to-differential-population-dynamics-and-top-down-control-in-resurrected-daphnia-populations
#13
Eyerusalem Goitom, Laurens J Kilsdonk, Kristien Brans, Mieke Jansen, Pieter Lemmens, Luc De Meester
There is growing evidence of rapid genetic adaptation of natural populations to environmental change, opening the perspective that evolutionary trait change may subsequently impact ecological processes such as population dynamics, community composition, and ecosystem functioning. To study such eco-evolutionary feedbacks in natural populations, however, requires samples across time. Here, we capitalize on a resurrection ecology study that documented rapid and adaptive evolution in a natural population of the water flea Daphnia magna in response to strong changes in predation pressure by fish, and carry out a follow-up mesocosm experiment to test whether the observed genetic changes influence population dynamics and top-down control of phytoplankton...
January 2018: Evolutionary Applications
https://www.readbyqxmd.com/read/29298067/high-levels-of-avenanthramides-in-oat-based-diet-further-suppress-high-fat-diet-induced-atherosclerosis-in-ldlr-mice
#14
Michael Thomas, Sharon Kim, Weimin Guo, William F Collins, Mitchell L Wise, Mohsen Meydani
Oats, in addition to cholesterol-lowering properties, contain unique antioxidants called avenanthramides (Avns), which inhibit both inflammatory cytokines and adhesion molecules in endothelial cells in culture. This study evaluated the effects of Avns of oats on atherosclerosis in Ldlr-/- mice, one of the most commonly used atherosclerosis mouse models with their similar cholesterol distributions to humans. The Ldlr-/- mice were fed a low fat, high fat, high fat containing regular oat brans with low levels of Avns (HFLA), or high fat containing regular oat brans with high levels of Avns (HFHA) diet...
January 3, 2018: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29287468/effect-of-maize-bran-feruloylated-oligosaccharides-on-the-formation-of-endogenous-contaminants-and-the-appearance-and-textural-properties-of-biscuits
#15
Junqing Huang, Yijinruo Wang, Ling Yang, Xichun Peng, Jie Zheng, Shiyi Ou
Feruloylated oligosaccharides (FOs) have been approved by the US Food and Drug Administration for addition to baked goods. This work investigated the effect of FOs on the formation of endogenous contaminants, antioxidant properties, appearance and texture of biscuits. FOs inhibited the formation of fluorescent AGEs (advanced glycation end-products), protein oxidation products, and dicarbonyl compounds in a dose-dependent manner. Addition of 10 mg/g FOs decreased the levels of fluorescent AGEs, dityrosine, kynurenine, N'-formylkynurenine, 3-deoxyglucosone, glyoxal, and methylglyoxal by 80%, 97%, 56%, 86%, 46%, 54% and 62%, respectively...
April 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29281178/a-novel-anti-hypertensive-peptide-identified-in-thermolysin-digested-rice-bran
#16
Naohisa Shobako, Yutaro Ogawa, Atsushi Ishikado, Kayo Harada, Etsuko Kobayashi, Hirohisa Suido, Takeshi Kusakari, Mariko Maeda, Makoto Suwa, Motonobu Matsumoto, Ryuhei Kanamoto, Kousaku Ohinata
SCOPE: Hypertension is a risk factor for arteriosclerosis. In this study, we investigated the anti-hypertensive effect of protease-digested rice bran in a spontaneously hypertension rat (SHR) model. We also purified a novel anti-hypertensive peptide from the digest. METHODS AND RESULTS: Thermolysin-digested rice bran (TRB) was administered to SHRs for 4 weeks, and systolic blood pressure (SBP) was measured weekly using the tail-cuff method. TRB showed an anti-hypertensive effect in a dose-dependent manner...
December 27, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29276944/a-rice-bioactive-peptide-binding-with-tlr4-to-overcome-h2o2-induced-injury-in-human-umbilical-vein-endothelial-cells-through-nf-%C3%AE%C2%BAb-signaling
#17
Ying Liang, Qinlu Lin, Ping Huang, Yuqian Wang, Jiajia Li, Lin Zhang, Jianzhong Cao
Reactive oxygen species (ROS)-induced vessel endothelium injury is crucial in cardiovascular diseases progression. Rice-derived bran bioactive peptides (RBAP) might exert antioxidant effect through unknown mechanisms. Herein, we validated the antioxidant effect and mechanism of RBAP on H2O2-induced oxidative injury in human umbilical vein endothelial cells (HUVECs). Here, HUVECs were treated with RBAP under H2O2 stimulation; the effects of RBAP on HUVECs oxidative injury were evaluated. H2O2 injury-induced cell morphology changes were ameliorated by RBAP...
December 25, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/29249922/rice-bran-mineral-extract-increases-the-expression-of-anagen-related-molecules-in-human-dermal-papilla-through-wnt-catenin-pathway
#18
Yu-Mi Kim, Soon-Joung Kwon, Hyun-Joon Jang, Young-Kwon Seo
The objective of this study is to evaluate of rice bran mineral extract (RBM) increases the expression of anagen-related molecules in human dermal papilla (DOCs). Four treatment groups were established to evaluate the efficacy of RBM, including a negative control, positive control (ascorbic acid), RBM and ortho-silicic acid (Si(OH)4) (OSA) group. Three days after the DPCs were administered the various treatments, western blot analysis showed that type I collagen expression was increased 2.5-fold in the OSA group and 4-fold in the RBM group, and ALP expression was increased 1...
2017: Food & Nutrition Research
https://www.readbyqxmd.com/read/29244718/prebiotic-dietary-fiber-and-gut-health-comparing-the-in-vitro-fermentations-of-beta-glucan-inulin-and-xylooligosaccharide
#19
Justin L Carlson, Jennifer M Erickson, Julie M Hess, Trevor J Gould, Joanne L Slavin
Prebiotic dietary fiber supplements are commonly consumed to help meet fiber recommendations and improve gastrointestinal health by stimulating beneficial bacteria and the production of short-chain fatty acids (SCFAs), molecules beneficial to host health. The objective of this research project was to compare potential prebiotic effects and fermentability of five commonly consumed fibers using an in vitro fermentation system measuring changes in fecal microbiota, total gas production and formation of common SCFAs...
December 15, 2017: Nutrients
https://www.readbyqxmd.com/read/29239475/the-production-of-hydrolysates-from-industrially-defatted-rice-bran-and-its-surface-image-changes-during-extraction
#20
Geerada Kaewjumpol, Maria J Oruna-Concha, Keshavan Niranjan, Supawan Thawornchinsombut
BACKGROUND: This research employed mild-subcritical alkaline water extraction (SAW) technique to overcome the difficulty of active compounds extractability from an industrially defatted rice bran (IDRB). Mild-SAW (pH 9.5, 130 °C, 120 min) treatment, followed by enzymatic hydrolysis (Protease G6) were applied to produce rice bran hydrolysate (RBH). Response surface methodology was used to identify proteolysis conditions for maximizing protein content and ABTS radical scavenging activity (ABTS-RSA)...
December 14, 2017: Journal of the Science of Food and Agriculture
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