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Dextrins

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https://www.readbyqxmd.com/read/29151980/synbiotic-effects-of-%C3%AE-glucans-from-cauliflower-mushroom-and-lactobacillus-fermentum-on-metabolic-changes-and-gut-microbiome-in-estrogen-deficient-rats
#1
Seong-Yeop Jeong, Suna Kang, Cao Shi Hua, Zhang Ting, Sunmin Park
Background: We investigated whether the long-term consumption of a symbiotic formulation with Lactobacillus fermentum (probiotic) and β-glucan from cauliflower mushroom (prebiotic) would delay the progression of post-menopausal symptoms in ovariectomized (OVX) rats and explored their mechanisms of action, including changes in gut microbiota. Methods: OVX rats were fed with high-fat diets containing 1% dextrin (control), 1% lyophilized cauliflower mushroom extract (CFM), 0...
2017: Genes & Nutrition
https://www.readbyqxmd.com/read/29146428/preparative-fractionation-of-dextrin-by-polyethylene-glycol-effects-of-initial-dextrin-concentration-and-ph
#2
Xiuting Hu, Yu Wang, Chengmei Liu, Zhengyu Jin, Yaoqi Tian
Polyethylene glycol (PEG) was further applied for fractionating dextrin prepared from cassava starch. The initial dextrin concentration and pH of the dextrin solutions were crucially considered in this study with the average molecular-weight dispersity (DMa) as the index. The results showed that the initial dextrin concentration significantly affected the mass fraction and the molecular weight distribution of each dextrin fraction obtained from gradient PEG precipitation. However, the initial dextrin concentration, which ranged from 0...
November 11, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29134685/in-ovo-feeding-of-nutrients-and-its-impact-on-post-hatching-water-and-feed-deprivation-up-to-48%C3%A2-hr-energy-status-and-jejunal-morphology-of-chicks-using-response-surface-models
#3
M Ghanaatparast-Rashti, M Mottaghitalab, H Ahmadi
A Box-Behnken design (BBD) in a response surface methodology (RSM) was used to investigate the response of broiler chicks to in ovo feeding (IOF) of beta-hydroxy beta-methylbutyrate (HMB), dextrin and the timing of the first water and feed deprivation. On day 18th of incubation, 1,500 eggs were randomly assigned to 15 experimental runs of BBD, each with 4 replicates, as 3 levels IOF of HMB (0%, 0.5% and 1%) and dextrin (0%, 20% and 40%), and 3 levels of the first water and feed deprivation (6, 27 and 48 hr)...
November 13, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29127884/regional-dysregulation-of-taurine-and-related-amino-acids-in-the-fetal-rat-brain-following-gestational-alcohol-exposure
#4
Raine Lunde-Young, Katie Davis-Anderson, Vishal Naik, Matthew Nemec, Guoyao Wu, Jayanth Ramadoss
The fetal brain exhibits exquisite alcohol-induced regional neuronal vulnerability. A candidate mechanism for alcohol-mediated brain deficits is disruption of amino acid (AA) bioavailability. AAs are vitally important for proper neurodevelopment, as they comprise the most abundant neurotransmitters in the brain and act as neurotransmitter precursors, nitric oxide donors, antioxidants, and neurotrophic factors, which induce synaptogenesis, neuronal proliferation, and migration. We hypothesized that gestational alcohol alters brain AA concentrations, disrupts AAs associated with neuropathogenesis, and that alterations are region-specific...
September 30, 2017: Alcohol
https://www.readbyqxmd.com/read/29098410/comparative-proteomic-analysis-sclr-is-importantly-involved-in-carbohydrate-metabolism-in-aspergillus-oryzae
#5
Feng-Jie Jin, Pei Han, Miao Zhuang, Zhi-Min Zhang, Long Jin, Yasuji Koyama
The helix-loop-helix (HLH) family of transcriptional factors is a key player in a wide range of developmental processes in organisms from mammals to microbes. We previously identified the bHLH transcription factor SclR in Aspergillus oryzae and found that the loss of SclR function led to significant phenotypic changes, such as rapid protein degradation and cell lysis in dextrin-polypeptone-yeast extract liquid medium. The result implied that SclR is potentially important in both traditional fermentative manufacturing and commercial enzyme production in A...
November 2, 2017: Applied Microbiology and Biotechnology
https://www.readbyqxmd.com/read/29080707/preparation-and-characterization-of-an-amylase-triggered-dextrin-linked-graphene-oxide-anticancer-drug-nanocarrier-and-its-vascular-permeability
#6
Siaw Fui Kiew, Yan Teck Ho, Lik Voon Kiew, James Chen Yong Kah, Hong Boon Lee, Toyoko Imae, Lip Yong Chung
We synthesized a dextrin (DEX)-conjugated graphene oxide (GO) nanocarrier (GO100-DEX) as a potential drug delivery system to respond to a tumor-associated stimulus, α-amylase, that has high permeability through the fenestrated endothelial barrier to the tumor site. At acidic pH and in the presence of α-amylase to simulate tumor conditions, GO100-DEX released a 1.5-fold higher amount of doxorubicin (DOX) than of GO100. Under the same conditions, the cytotoxic effects of GO100-DEX/DOX were 2-fold greater than those of free DOX and 2...
October 27, 2017: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29078182/tungsten-vi-based-molecular-puzzle-photoluminescent-nanoparticles-easily-covered-with-biocompatible-natural-polysaccharides-via-direct-chelation
#7
Volodymyr Lobaz, Martin Hladik, Miloš Steinhart, Aleksandra Paruzel, Peter Černoch, Jiří Pánek, Miroslav Vetrík, Daniel Jirák, Markéta Jirátová, Ognen Pop-Georgievski, Miroslav Šlouf, Sébastien Garcia-Argote, Gregory Pieters, Eric Doris, Martin Hrubý
Multimodal probes, which can be simultaneously visualized by multiple imaging modalities, enable the cellular uptake, intracellular fate, biodistribution and elimination to be tracked in organisms. In this study, we report the synthesis of crystalline WO3 and CaWO4 doped with Eu(3+) or Tb(3+) nanoparticles (size range of 10-160 nm) coated with polysaccharides, and these nanoparticles constitute a versatile easy-to-construct modular toolbox for multimodal imaging. The particles adsorb significant amounts of polysaccharides from the solution, providing biocompatibility and may serve as a platform for labeling...
October 16, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29037674/structure-of-pyrodextrin-in-relation-to-its-retrogradation-properties
#8
Xiaoxian Han, Ji Kang, Yanjie Bai, Meng Xue, Yong-Cheng Shi
Pyrodextrins were prepared by heating waxy maize starch at 170°C and pH 3.0 for 0.5, 1, 2, 3 and 4h. Structural changes of pyrodextrins were determined by gel permeation chromatography and (1)H NMR. Gelatinization and retrogradation of pyrodextrins were measured by differential scanning calorimetry. The water solubility of pyrodextrins increased from 48.9 to 99.4% as heating time increased from 0.5 to 4h. The molecular size, melting enthalpy of pyrodextrin, and the degree of retrogradation decreased as pyrodextrin solubility increased...
March 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29037665/unit-and-internal-chain-profiles-of-maca-amylopectin
#9
Ling Zhang, Guantian Li, Weirong Yao, Fan Zhu
Unit chain length distributions of amylopectin and its φ, β-limit dextrins, which reflect amylopectin internal structure from three maca starches, were determined by high-performance anion-exchange chromatography with pulsed amperometric detection after debranching, and the samples were compared with maize starch. The amylopectins exhibited average chain lengths ranging from 16.72 to 17.16, with ranges of total internal chain length, external chain length, and internal chain length of the maca amylopectins at 12...
March 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29036399/use-of-a-crossed-high-alcohol-preferring-chap-mouse-model-with-the-niaaa-model-of-chronic-binge-ethanol-intake-to-study-liver-injury
#10
Kyle J Thompson, Shayan S Nazari, W Carl Jacobs, Nicholas J Grahame, Iain H McKillop
Aims: This study sought to compare mice bred to preferentially consume high amounts of alcohol (crossed-high alcohol preferring, cHAP) to c57BL/6 (C57) mice using a chronic-binge ethanol ingestion model to induce alcoholic liver disease (ALD). Methods: Male C57 and cHAP mice were randomized to a Lieber-DeCarli control (LDC) diet, Lieber-DeCarli 5% (v/v) ethanol (LDE) diet or free-choice between 10% (v/v) ethanol in drinking water (EtOH-DW) and DW. After 4 weeks mice were gavaged with either 9 g/kg maltose-dextrin (LDC+MD) or 5 g/kg EtOH (LDE+Binge, EtOH-DW+Binge)...
September 20, 2017: Alcohol and Alcoholism: International Journal of the Medical Council on Alcoholism
https://www.readbyqxmd.com/read/29031887/direct-colorimetric-detection-of-unamplified-pathogen-dna-by-dextrin-capped-gold-nanoparticles
#11
Amy M Baetsen-Young, Matthew Vasher, Leann L Matta, Phil Colgan, Evangelyn C Alocilja, Brad Day
The interaction between gold nanoparticles (AuNPs) and nucleic acids has facilitated a variety of diagnostic applications, with further diversification of synthesis match bio-applications while reducing biotoxicity. However, DNA interactions with unique surface capping agents have not been fully defined. Using dextrin-capped AuNPs (d-AuNPs), we have developed a novel unamplified genomic DNA (gDNA) nanosensor, exploiting dispersion and aggregation characteristics of d-AuNPs, in the presence of gDNA, for sequence-specific detection...
October 7, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29030291/evaluation-of-a-spray-type-novel-dextrin-hydrogel-adhesion-barrier-under-laparoscopic-conditions-in-a-porcine-uterine-horn-adhesion-model
#12
Miho Kai, Kazuha Maeda, Masako Tasaki, Shinichirou Kira, Shintarou Nakamura, Naotaka Chino, Hitomi Hagiwara, Hitoshi Nishida, Tetsuro Kawanishi
STUDY OBJECTIVE: To establish a porcine uterine horn adhesion model that mimicked laparoscopic procedures and use it to investigate the effect of a spray-type, novel dextrin hydrogel adhesion barrier (AdSpray) on postsurgical adhesions. DESIGN: Single: Single-blind randomized controlled trial (Canadian Task Force Classification I). SETTING: Certified animal research facility. SUBJECTS: 16 female pigs. INTERVENTIONS: All animals underwent laparoscopically-assisted adhesion-inducing surgery...
October 10, 2017: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29027557/ionic-surfactant-coated-subtilisin-activity-enantioselectivity-and-application-to-dynamic-kinetic-resolution-of-secondary-alcohols
#13
Kyungwoo Kim, Eungyeong Lee, Cheolwoo Kim, Jaiwook Park, Mahn-Joo Kim
In this work, we explored the utility of ionic-surfactant-coated Bacillus licheniformis subtilisin (ISCBLS) as the catalyst for the dynamic kinetic resolution of secondary alcohols. ISCBLS was prepared by freeze-drying Bacillus licheniformis subtilisin with both ionic surfactant 1 and dextrin. ISCBCL displayed 9300-fold enhanced activity relative to its native counterpart in the transesterificaion of N-acetyl phenylalanine ethyl ester with 1-propanol in hexane and 12 800-fold enhanced activity in the transesterification of trifluoroethyl butyrate with 1-phenylethanol in THF...
October 25, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/29027421/-online-endpoint-detection-algorithm-for-blending-process-of-chinese-materia-medica
#14
Zhao-Zhou Lin, Chan Yang, Bing Xu, Xin-Yuan Shi, Zhi-Qiang Zhang, Jing Fu, Yan-Jiang Qiao
Blending process, which is an essential part of the pharmaceutical preparation, has a direct influence on the homogeneity and stability of solid dosage forms. With the official release of Guidance for Industry PAT, online process analysis techniques have been more and more reported in the applications in blending process, but the research on endpoint detection algorithm is still in the initial stage. By progressively increasing the window size of moving block standard deviation (MBSD), a novel endpoint detection algorithm was proposed to extend the plain MBSD from off-line scenario to online scenario and used to determine the endpoint in the blending process of Chinese medicine dispensing granules...
March 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28972677/hepatocellular-uptake-of-cyclodextrin-complexed-curcumin-during-liver-preservation-a-feasibility-study
#15
Saber Abdelkader Saidi, Nicolas Meurisse, Ina Jochmans, Veerle Heedfeld, Tine Wylin, Jaakko Parkkinen, Jacques Pirenne, Diethard Monbaliu, Abdelfattah El Feki, Jos van Pelt
Increasing demand for donor organs and decreasing organ quality is prompting research toward new methods to reduce ischemia reperfusion injury (IRI). Several strategies have been proposed to protect the preserved organ from this injury. Before curcumin/dextrin complex (CDC), a potent antioxidant and anti-inflammatory agent, can be used clinically we need to better understand the intracellular uptake under hypothermic conditions on rat model of liver donation after circulatory death (DCD) and brain death (DBD)...
October 3, 2017: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/28969805/characterization-of-the-functional-interactions-of-plastidial-starch-phosphorylase-and-starch-branching-enzymes-from-rice-endosperm-during-reserve-starch-biosynthesis
#16
Yasunori Nakamura, Masami Ono, Takayuki Sawada, Naoko Crofts, Naoko Fujita, Martin Steup
Functional interactions of plastidial phosphorylase (Pho1) and starch branching enzymes (BEs) from the developing rice endosperm are the focus of this study. In the presence of both Pho1 and BE, the same branched primer molecule is elongated and further branched almost simultaneously even at very low glucan concentrations present in the purified enzyme preparations. By contrast, in the absence of any BE, glucans are not, to any significant extent, elongated by Pho1. Based on our in vitro data, in the developing rice endosperm, Pho1 appears to be weakly associated with any of the BE isozymes...
November 2017: Plant Science: An International Journal of Experimental Plant Biology
https://www.readbyqxmd.com/read/28955752/preparation-and-characterization-of-cockle-shell-aragonite-nanocomposite-porous-3d-scaffolds-for-bone-repair
#17
Saffanah Khuder Mahmood, Md Zuki Abu Bakar Zakaria, Intan Shameha Binti Abdul Razak, Loqman Mohamed Yusof, Alhaji Zubair Jaji, Isa Tijani, Nahidah Ibrahim Hammadi
The demands for applicable tissue-engineered scaffolds that can be used to repair load-bearing segmental bone defects (SBDs) is vital and in increasing demand. In this study, seven different combinations of 3 dimensional (3D) novel nanocomposite porous structured scaffolds were fabricated to rebuild SBDs using an extraordinary blend of cockle shells (CaCo3) nanoparticles (CCN), gelatin, dextran and dextrin to structure an ideal bone scaffold with adequate degradation rate using the Freeze Drying Method (FDM) and labeled as 5211, 5400, 6211, 6300, 7101, 7200 and 8100...
July 2017: Biochemistry and Biophysics Reports
https://www.readbyqxmd.com/read/28946314/characterization-of-polymer-chain-fractions-of-kiwifruit-starch
#18
Dongxing Li, Fan Zhu
In this report, the amylose composition and molecular structure of starches from the core and outer pericarp of 3 golden kiwifruit varieties were characterised, using enzymatic and chromatographic techniques. Starches from the core tissues of kiwifruit tend to have higher amylose contents (by ∼3-5%) and longer unit chains of both amylopectins and their φ, β-limit dextrins (LDs) than those of the outer pericarp starches. The contents of short B-chains of the φ, β-LDs of amylopectins from the outer pericarp were higher (by ∼3%) than those of φ, β-LDs of the core amylopectins...
February 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/28925148/-near-infrared-analysis-of-blending-homogeneity-of-chinese-medicine-formula-particles-based-on-moving-window-f-test-method
#19
Chan Yang, Bing Xu, Zhi-Qiang Zhang, Xin Wang, Xin-Yuan Shi, Jing Fu, Yan-Jiang Qiao
Blending uniformity is essential to ensure the homogeneity of Chinese medicine formula particles within each batch. This study was based on the blending process of ebony spray dried powder and dextrin(the proportion of dextrin was 10%),in which the analysis of near infrared (NIR) diffuse reflectance spectra was collected from six different sampling points in combination with moving window F test method in order to assess the blending uniformity of the blending process.The method was validated by the changes of citric acid content determined by the HPLC...
October 2016: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28910527/comparative-structural-characterization-of-spiral-dextrin-inclusion-complexes-with-vitamin-e-or-soy-isoflavone
#20
Ping-Ping Wang, Xin-Sheng Qin, Qing-Yu Yang, Zhi-Gang Luo, Zhi-Gang Xiao, Xi-Chun Peng
In this study, the preparation and structural properties of spiral dextrin (SD)/vitamin E and SD/soy isoflavone inclusion complexes were studied. SD was obtained from debranched normal maize starch using isoamylases. After fractionation using a novel method of gradient ethanol precipitation, SD was separated into different fractions, among which SD-40 was found to be the optimal host molecule to prepare SD inclusion complexes with vitamin E or soy isoflavone. X-ray diffraction (XRD) and (13)C cross-polarization magic angle spinning nuclear magnetic resonance (NMR) suggested that the crystalline structures of SD-40/vitamin E and SD-40/soy isoflavone were V6II and V6III types, respectively...
September 25, 2017: Journal of Agricultural and Food Chemistry
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