Results 1 to 10 of about 919 (65)
Zhongguo youzhi, 2022 为促进微胚乳玉米醇溶蛋白的开发和应用，以微胚乳玉米为原料，分别采用乙醇浸提法和超声波辅助乙醇浸提法提取玉米醇溶蛋白，通过单因素实验优化工艺条件，并对微胚乳玉米醇溶蛋白的氨基酸组成进行分析。结果表明：乙醇浸提法提取微胚乳玉米醇溶蛋白的最优工艺条件为提取温度50 ℃，提取时间 2.0 h，乙醇体积分数80%，料液比1∶ 12；超声波辅助乙醇浸提法提取微胚乳玉米醇溶蛋白的最优工艺条件为乙醇体积分数80%,超声时间40 min，料液比1∶ 20，超声功率500 W。在各自最优条件下 ...
张泽英1，付思晗2，谢军波2 ZHANG Zeying1，FU Sihan2，XIE Junbo2
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Lughawiyah: Journal of Arabic Education and Linguistics, 2022 Amin al-Khouli is the pioneer of Balaghah renewal in modern era. Balaghah renewal that is called Fann al-Qaul (Art of Speaking) appeared in a period close to the appearance period of stylistic study in Europe. The purpose of this research is to reveal the connection between Amin al-KhouliÔÇÖs ideas about Balaghah renewal in his book Fann al-Qaul and ...
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Zhongguo youzhi, 2022 为了优化脂肪酰乙醇胺的制备工艺，以油酸甲酯和乙醇胺为原料，采用无溶剂法制备油酰乙醇胺，采用单因素实验优化了反应条件。然后以10种脂肪酸甲酯为原料，考察了该反应方法的普适性，并对制备得到的10种脂肪酰乙醇胺的结构进行了表征。结果表明：制备油酰乙醇胺的最佳工艺条件为无溶剂、油酸甲酯与乙醇胺物质的量比1∶ 5、反应温度100 ℃、反应时间15 h，在此条件下油酰乙醇胺产率为76.52%；在最佳工艺条件下考察了反应底物的普适性，得到10种脂肪酰乙醇胺目标化合物，其产率在53%~87%之间，并通过核磁氢谱 ...
李孟昱1,2，陈伟珠2,3，晋文慧2,3，方华2,3，洪专2,3，张玉苍1 LI Mengyu1,2, CHEN Weizhu2,3, JIN Wenhui2,3, FANG Hua2,3, HONG Zhuan2,3, ZHANG Yucang1
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The Anatomical Record, Volume 306, Issue 12, Page 2945-2957, December 2023., 2023 Abstract Incipient diagnosis and noninvasive forecasts using urinary biomarkers are important for preventing diabetic kidney disease (DKD) progression, but they are also controversial. Previous studies have shown a potential relationship between urinary tubular biomarkers (UTBs) and traditional Chinese medicine (TCM) syndrome in patients with DKD. Thus,
Wei Wu +11 more
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Integrative Conservation, Volume 2, Issue 3, Page 133-139, September 2023., 2023 Invertebrate‐derived DNA (iDNA) has enabled the identification and quantification of ecological interactions within trophic networks and its use in biodiversity assessment. The dung beetle iDNA currently uses live beetles. However, the effectiveness of the iDNA approach hinges on the successful detection of mammalian DNA from specimens collected via ...
Thilina S. Nimalrathna +3 more
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Zhongguo youzhi, 2022 为了提高麻疯树种子的开发利用价值，采用体外抗氧化实验对麻疯树籽仁/壳乙醇提取物抗氧化活性进行了研究。分别以麻疯树种子中的籽仁和籽壳为原料，经75%乙醇提取，在对提取物主要成分进行分析的基础上，以VE为阳性对照，测定两种提取物对自由基（DPPH自由基、ABTS+自由基、羟自由基和超氧自由基）的清除能力、还原能力以及抑制亚油酸自氧化能力。结果表明：麻疯树籽仁/壳乙醇提取物中多糖类物质总含量分别为47.67%和52.21%，酮类物质总含量分别为0.774%和 4.22%，麻疯树籽壳乙醇提取物中还含有0.30 ...
王钰，周一萍，汤运嘉，余莉莉，牛丽亚WANG Yu, ZHOU Yiping, TANG Yunjia, YU Lili, NIU Liya
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Zhejiang Daxue xuebao. Lixue ban, 2010 建立小鼠急性高尿酸血症模型,通过灌胃给药考察车前草的降血尿酸作用.采用正交试验设计,以车前草所含大车前苷为指标,考察乙醇浓度、提取时间、提取次数和乙醇用量4种因素对提取结果的影响.大车前苷和血尿酸的含量均用HPLC法测定.结果表明,车前草醇提组的小鼠血清尿酸水平明显低于模型组 ...
QIANYing(钱莺) +3 more
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Polyphenol Components and Antioxidant Activities of Three Fractions Extracted by Different Polar Solvents from Litchi Pulp Polyphenol Extract(荔枝果肉多酚不同极性分部的构成谱及其抗氧化活性比较) [PDF]
Shipin kexue jishu xuebao, 2016 Two different polar solvents (ethyl acetate and butanol) were used to fractionate polyphenol from aqueous solution of litchi polyphenol extract. The phenolic profiles in each fraction were determined by HPLC, and their antioxidant activities were ...
WEN Yejie(温叶杰) +6 more
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Zhongguo youzhi, 2022 为解决樟树籽蛋白色泽深、纯度低的问题，将樟树籽脱壳、冷榨脱脂、粉碎后制得脱脂樟树籽仁粉，经不同体积分数乙醇前处理后，用碱溶酸沉法制备樟树籽仁分离蛋白（CPI）。对CPI的白度值、纯度、溶解度、分子质量和结构进行分析。结果表明：经55％～85％乙醇前处理，CPI色泽明显改善，其中经65%乙醇前处理后制备的CPI白度值由（0.70±0.02）%提高至（6.00±0.02）%；经95%乙醇前处理，CPI纯度由（60.61±0.35）%提高至（87.45±0.14）%；经85%乙醇前处理，CPI的溶解度由（81.
孙旦，姜秋水，孙逸文，刘轩，沈华 SUN Dan, JIANG Qiushui, SUN Yiwen, LIU Xuan, SHEN Hua
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野生动物学报, 2020 本研究以圈养华北豹粪便样品中雌二醇的提取方法为研究对象。本实验中比较了甲醇加热法、乙醇加热法和乙醇蒸馏水，3种粪样中提取雌二醇的技术方法，利用放射免疫分析法测定雌二醇的含量。结果显示，甲醇加热法、乙醇加热法和乙醇蒸馏水法3种方法分别提取浓度为（281547±59747）pg/mL、（766025±154611）pg/mL和（193783±53171）pg/mL。其中乙醇加热法是这3种方法中提取含量可达（766025±154611）pg/mL，通过统计学分析发现 ...
李亮亮 1 由玉岩 2 金修哲 1 张卓 1 孙乐天 1 卫泽珍 1 杨引亮 1 刘学锋 2 张成林 2 李晓光 2
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