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茯苓酸可促进前脂肪细胞棕色化及脂代谢 [PDF]

open access: yes浙江大学学报. 医学版
目的:探究茯苓酸对前脂肪细胞棕色化及脂代谢的影响。方法:采用棕色鸡尾酒法诱导3T3-L1 MBX细胞向米色脂肪细胞分化,建立棕色化体系。利用CCK-8法检测不同浓度茯苓酸对3T3-L1 MBX细胞存活率的影响;油红O染色观察茯苓酸作用后脂滴形成情况;定量逆转录聚合酶链反应检测棕色化关键基因解偶联蛋白(Ucp)1、过氧化物酶体增殖物激活受体γ辅激活子(Pgc)-1α、含PR结构域16转录因子(Prdm16),脂肪生成相关基因固醇调节元件结合蛋白(Srebp)1c、乙酰辅酶A羧化酶(Acc)、脂肪酸合酶 ...
陈 坤铃   +5 more
doaj   +2 more sources

Research on Mechanism of Decarboxylation of Intermediates Involved in Preparation of Flavor Furanone(食用香料呋喃酮制备过程中中间体脱羧反应机理研究) [PDF]

open access: yesShipin kexue jishu xuebao, 2023
The decarboxylations of the intermediates involved in the industrial production of furanone starting from diethyl α-methyldiglycolate and diethyl oxalate were investigated. Furanone was obtained through two successive Claisen condensations, hydrolysis of
WANG Yutong(王禹茼)   +5 more
doaj   +1 more source

Synthesis and Structure Characterization of Bioactive Polymethoxy Flavonoids Carboxylic Acid and Amino Acids Derivatives(生物活性多甲氧基黄酮羧酸和氨基酸衍生物的合成及其结构表征) [PDF]

open access: yesShipin kexue jishu xuebao, 2020
Polymethoxy flavonoids (PMFs) are a class natural products, which almost exclusively exist in citrus plants possessing distinguished anti-carcinogenic, anti-inflammatory and antioxidative activities.
LIU Wei(刘伟)   +3 more
doaj   +1 more source

Effect of Adding Lactic Acid Bacteria in Diet on Lipid Metabolism and Meat Quality of Sunit Sheep(日粮添加乳酸菌对苏尼特羊脂质代谢及肉品质的影响) [PDF]

open access: yesShipin kexue jishu xuebao, 2022
In order to investigate the effect of adding lactic acid bacteria (LAB) in the diet on lipid metabolism and meat quality of Sunit sheep, twelve Sunit sheep aged 3 months with good body condition [body weight (18.70±2.69)kg] were selected, and then ...
ZHANG Yue(张月)   +8 more
doaj   +1 more source

Effect of Different Emulsion Stabilizers on Stability of Whole Grain Milk and Proportion Optimization(不同乳化稳定剂对全谷物糙米营养乳稳定性的影响及其配比优化) [PDF]

open access: yesShipin kexue jishu xuebao, 2017
The major factors affected the stability of whole grain milk was investigated. Then the emulsion stabilizer was screened and its proportion was optimized.
MA Yongxuan(马永轩)   +9 more
doaj   +1 more source

油茶籽粕多糖不同分子修饰产物的抗氧化活性Antioxidant activity of different molecular modified products of polysaccharide from Camellia oleifera seed meal

open access: yesZhongguo youzhi, 2022
为比较不同修饰方法对油茶籽粕多糖抗氧化活性的影响,通过硫酸酯化、羧甲基化及乙酰化3种方法对纯化的油茶籽粕多糖(COP)进行分子修饰,以制备具有不同取代度的COP。采用体外实验法,以羟自由基(·OH)、超氧阴离子自由基(·O-2)及DPPH自由基(DPPH·)清除率为指标,探究COP及其分子修饰产物的抗氧化活性。结果表明:较低取代度的硫酸酯化修饰能提高COP对·OH、·O-2以及DPPH·的清除能力;高取代度的羧甲基化修饰能提高COP对·OH的清除能力,低取代度的羧甲基化修饰则能提高COP对DPPH ...
杨建安1,2,张超1,文焱炳2,方芳1YANG Jian′an1,2, ZHANG Chao1,WEN Yanbing2, FANG Fang1
doaj   +1 more source

Detection of Volatile Flavor Compounds and Harmful Factors in Four Kinds of Convenience Food(4种方便食品挥发性风味物质与不良因子检测) [PDF]

open access: yesShipin kexue jishu xuebao, 2022
In order to explore the correlation between flavor compounds and harmful factors, the contents of volatile flavor compounds and harmful factors including acrylamide, polycyclic aromatic hydrocarbons, and trans fatty acids were determined in 16 samples ...
ZHANG Chenping(张晨萍)   +5 more
doaj   +1 more source

Composition Analysis of Phenolic Compounds with Different Polarities in Walnut Green Husk(核桃青皮不同极性酚类物质组成分析) [PDF]

open access: yesShipin kexue jishu xuebao, 2019
As a by-product of walnut processing, walnut green husk contains different polar phenolic substances with different compositions. In order to grading utilization of walnut green husk resources, orthogonal test was used to optimize the extraction process ...
LIU Rui(刘瑞)   +4 more
doaj   +1 more source

A study on reaction pathways for the cyclodehydration of hexedioic acids to 2, 5-furandicarboxylic acid(己糖二酸脱水环合制备2,5-呋喃二甲酸反应路径探究)

open access: yesZhejiang Daxue xuebao. Lixue ban, 2022
2,5-呋喃二甲酸(2,5-FDCA)是生物可降解聚呋喃二甲酸乙二醇酯(PEF)的单体,目前尚未形成廉价的制备技术,其中用己糖二酸脱水环合制备2,5-FDCA是一条具有发展潜力的路线。针对此路线中副产物定性不准确、反应路径研究不完善等问题,通过高效液相色谱、高分辨质谱、核磁共振和傅里叶变换红外光谱分析,开展了副产物定性工作,确定反应体系中的2个主要副产物为糠酸和3-羟基-6-羧基-2-吡喃酮(HOCA)。在硫酸催化下不同己糖二酸脱水环合的反应路径相似,半乳糖二酸易生成副产物HOCA ...
LYUXilei(吕喜蕾)   +6 more
doaj   +1 more source

Comparative Study of Free and Bound Volatile Components in Lichuan Black Tea and Enshi Green Tea(利川红茶与恩施绿茶中游离态与键合态挥发性物质对比分析) [PDF]

open access: yesShipin kexue jishu xuebao, 2022
The kinds and contents of free and bound volatile substances in Lichuan black tea and Enshi green tea, which are unique to Enshi, Hubei province, Wuling area, were studied by headspace solid-phase microextraction technology combined with gas ...
ZHAO Shilan(赵诗兰)   +6 more
doaj   +1 more source

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