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- levulinic hydrazide 乙酰基丙酰肼
- The content of levulinic acid in soy sauce, hydrolyzed vegetable protein (HVP) and caramel was determined. 摘要对酱油、酸水解植物蛋白(HVP)、焦糖色素中乙酰丙酸的含量进行了测定。
- Abstract： A new method for determining hydrazide group introduced to polymethylacrylate resin was established. 摘 要： 研究了一种测定聚丙烯酸甲酯上酰肼基团分布的新方法。
- The content of levulinic acid was relatively lower in soy sauce and higher in HVP (the maximum was 15.79%). 其中，酱油中乙酰丙酸含量较低，酸水解植物蛋白中乙酰丙酸含量较多（最高含量为15.;79%25），而焦糖色素中也测出含有乙酰丙酸（最高含量达8
- The content of levulinic acid in soy sauce,hydrolyzed vegetable protein(HVP)and caramel was determined. 对酱油、酸水解植物蛋白(HVP)、焦糖色素中乙酰丙酸的含量进行了测定。
- We strictly control indicators ofChloropropanol and Levulinic Acid, which can meet the industry demands. 严控氯丙醇和果糖酸两个指标，使之符合行业标准；
- Fructose decomposition consisted of two successive reactions, first from fructose to 5-HMF, then from 5-HMF to levulinic acid. 果糖分解反应主要由果糖分解为中间产物5-HMF和5-HMF进一步分解成LA两步组成,乙酸的加入加快了第一步反应速度,而对第二步反应无明显影响,因而中间产物5-HMF收率可高达83%25;
- The decarboxylation of 5-hydroxymethylfurfural to levulinic acid is a key step in the preparation of levulinic acid from biomass. 5-羟甲基糠醛脱羧生成乙酰丙酸是生物质资源出发制备乙酰丙酸过程中的关键步骤之一。
- Levulinic acid is a promising biomass-derived feedstock obtained by acid-catalyzed dehydration of hexose sugars, Poliakoff explains. 这样的温度和压力条件只需使用一家发电站用不完的热量即可以提供。
- Process of synthesizing ACVA from cyan alcohol was studied,using sodium cyanide,levulinic acid,and A as starting materials. 对氰醇法合成ACVA的工艺进行了研究，该法采用氰化钠、果糖酸及物质A为原料。
- The work proved the possibility of substituting inorganic acid with strong acidic resins for levulinic acid preparation from biomass. 该研究结果证实了用耐水型强酸性树脂替代现有的无机酸催化制备乙酰丙酸的可能性。
- Therefore,it was unsuitable to determine brewing soy sauce and confecting soy sauce through the content of levulinic acid as index. 故此认为采用乙酰丙酸指标来判定酿造酱油还是配制酱油是不恰当的。
- Using levulinic acid (LA) derived from biomass as raw material, 5-HLA was synthesized via modified bromination and hydrolysis processes. 以来源于生物质资源的乙酰丙酸(LA)为原料，通过改进的溴化和水解反应合成了5-HLA。
- In this paper,the progress on diphenolic acid preparation by condensation reaction of levulinic acid and phenol is introduced. 利用乙酰丙酸和苯酚缩合反应制取双酚酸。
- A series of 2 pyrazolyl 5 substituted 1,3,4 oxadiazoles were synthesized starting from 5 pyrazole formic acid hydrazide and carboxylic acid by one pot method in the presence of phosphorus oxychloride. 以 5 吡唑甲酰肼和取代羧酸为起始物 ;运用“一锅煮”法合成了一系列 2 取代 5 吡唑基 1 ;3 ;4 ?二唑 .
- The interaction between the metal complex of hydrazide of podophyllic acid and calf thymus (CT) DNA was studied by using absorption spectra, fluorescence spectra and DNA heat denaturation. 利用吸收光谱、荧光光谱、DNA热变性研究了鬼臼酰肼金属配合物与小牛胸腺DNA之间的相互作用。
- The content of levulinic acid was relatively lower in soy sauce and higher in HVP (the maximum was 15.79%). There was levulinic acid in caramel too (the max is 8.02%). 其中;酱油中乙酰丙酸含量较低;酸水解植物蛋白中乙酰丙酸含量较多(最高含量为15.;79%25);而焦糖色素中也测出含有乙酰丙酸(最高含量达8
- In particular, the resulting active ester with pentafluorophenol facilitated the subsequent reaction with an amine and the hydrazine derivative to yield the C-terminal amide and hydrazide, respectively. 特别是与五氟苯酚生成的酯对后续的与氨或肼衍生化分别生成C端酰胺或酰肼非常有利。
- The content of levulinic acid was relatively lower in soy sauce and higher in HVP (the maximum was 15.79%).There was levulinic acid in caramel too (the max is 8.02%). 其中;酱油中乙酰丙酸含量较低;酸水解植物蛋白中乙酰丙酸含量较多(最高含量为15.;79%25);而焦糖色素中也测出含有乙酰丙酸(最高含量达8
- The following two decades then witnessed the development of a series of anti-TB drugs including p-aminosalicylic acid (PAS), isonicotinyl hydrazide (INH), pyrazinamide (PZA), D-cycloserine (CS), Ethambutol (EMB), ethionamide (ETH) and rifampin (RIF). 随后的20年中,迅速发展出了一系列抗结核药物,包括对氨基水杨酸(PAS)、异烟肼(INH)、吡嗪酰胺(PZA)、环丝氨酸(CS)、乙胺丁醇(EMB)、利福平(RIF)等。
