查询词典 acid value

Meanwhile,The impact of alcohol concentration,fermentation temperature,inoculums dose,initial sugar concentration,rotation speed,initial pH value to acid yield and ester yield in the process of solid-state fermenting craft was studied.

同时研究了酒精度、发酵温度、接种量、起始糖度、摇床转速、初始pH值等因素在固态发酵过程中对产醋酸和产酯量的影响。

The proportion of oleic acid: the iodine value gives an index of this.

脂肪硬度随油酸含量增加而减少：碘值可以给出这一变化的指数。

Methods The ionization constant was determined with acid-basle titration in acetone/water solutions with different ratios, the pH at half neutralization point was regarded as pKa, the value to infinite diluted in pure water was explored and the lgP was determined with bottle-shaking method by HPLC.

方法采用酸碱滴定法测定各不同体积比的丙酮-水溶液中药物半中和点时的pH值作为药物在该体积比的丙酮-水溶液中的pKa值，再外推至纯水中药物浓度无限稀释时的pKa值；采用HPLC配合摇瓶法测定药物的分配系数。

For (NH4)2S2O8 initiated ISP system consisted of AA, SPAN emulsifier and kerosine, it was found Rp 1.10.8, Eap=78.8kJ/mol for acrylic acid system and Rp 1.50.6, Eap=57.8-83.7kJ/mol for ammonium acrylate system The value of was negative when , the emulsifier concentration ,was low and became positive when was high for both systems.

用过硫酸铵引发AA类单体、SPAN系列乳化剂及煤油体系的ISP时，对AA体系Rp∝~(1.1)~(0.8)~Y，聚合总活化能为78.8KJ／mol；对丙烯酸铵体系，Rp∝~(1.4)~(0.6)~Y，聚合总活化能为57.6～83.7 kJ／mol，两体系中的γ值在乳化剂浓度较小时为负值，增加到一定程度时为正值。

Objective:Evaluation the application value of Fatty acid methyl ester method in Vibrio cholerae strain identification and relationship judgment.

目的：对脂肪酸分型方法在霍乱弧菌菌株鉴定、菌株相似性分析等方面的应用价值进行评价。

With peroxide value as experimental index, the oxidative stability of cold pressed oil of Xanthoceras sorbifolia Bunge seed was studied by Schaal experiment using TBHQ, PG and V as antioxidants, V and critic acid as synergists.

采用Schaal烘箱加速法，以叔丁基对苯二酚、没食子酸丙酯、生育酚V(下标 E为抗氧化剂，抗坏血酸V(下标 C和柠檬酸为增效剂，过氧化值为试验指标，研究了光线、温度等对冷榨文冠果籽油抗氧化性能的影响。

The results show that DEHP can migrate into all water food simulants from PVC film and the migration rate was the highest in 65% aqueous ethanol with the range 0.85%～6.31% and a big increasing amplitude when contacting temperature over 30℃, the rate was lower in 20% aqueous ethanol and distilled water with the range 0.19%～0.45% and 0.19%～0.37%, respectively; and the rate was the lowest in 4% aqueous acetic acid with the picked out rate 17% and the value ＜0.4%.

研究结果表明，PVC膜中DEHP在几种水性溶剂中均有溶出，在65%乙醇中溶出率最大，范围为0.85%～6.31%，当浸泡温度超出30℃后，溶出率增幅较大；在20%乙醇和蒸馏水中的溶出率较小，范围为0.19%～0.45%和0.19%～0.37%；4%乙酸对DEHP的溶出作用最小，70个样品中，检出率为17%，检出溶出率。4%。

Pseudoacacia and Caragana were significantly (P.05) better than A. fruticosa in pH, lactate content and ammonia-N/total-N ratio, so that their fermentation quality was better. In addition, they were high in crude protein and low in neutral detergent fiber and acid detergent fiber, showing that they were abundant in nutritive components. A. fruticosa was the inferior silage in every evaluation in the experiment. The mixed silage of R. pseudoacacia and Caragana was the best, and the mixed silage with A. fruticosa was not recommendable. There were no obvious changes in the time before and after silaging in nutritive value of these three kinds of plants, it showed that the silage technology was good.

结果表明：刺槐、柠条青贮伺料在pH值、乳酸含量、氨态氮／总氮比值方面均显著地(P.05)好于紫穗槐处理，发酵品质良好，且粗蛋白含量高，中性洗涤纤维和酸性洗涤纤维含量低，营养价值高；而紫穗槐青贮品质在各项评定中均较差；在混合青贮中刺槐和柠条青贮混合品质最佳，与紫穗槐混合的两种混合饲料品质较差；刺槐、柠条、紫穗槐在青贮前后营养品质均无明显降低，青贮饲料品质等级均为良好，青贮效果较优。

Results showed that there were no evident effects of different mechanical processes on the organic acid content(P＞0.05). The pH value of silages was all lower than 4.0 and the ratio of ammonia nitrogen to total nitrogen was all lower than 5.0, which improved the quality that all the silages in experiment were good. Though the effects of three different mechanical processes on the CP, CA and WSC contents of silages were evident, the silages were all excellent.

经不同切碎方式的各组青贮饲料的有机酸含量均无显著差异(P＞0.05)，pH值均在4.0以下，而且氨态氮与总氮的质量比也均在5.0以下，达到了优质青贮饲料的标准，虽然各青贮饲料的粗蛋白、粗灰分和可溶性碳水化合物含量有显著差异(P＜0.05)，但均为优质的青贮饲料。

Lactobacillus decreased pH, the value of NH3 / TN, and increased the content of lactic acid of all silages, especially improved the quality of alfalfa and the whole-plant paddy.

加入乳酸菌制剂后降低了所有青贮料的pH值、NH3/TN；提高了各青贮料的乳酸含量，尤其对于苜蓿与全株水稻的效果最为明显。

We have no common name for a mime of Sophron or Xenarchus and a Socratic Conversation; and we should still be without one even if the imitation in the two instances were in trimeters or elegiacs or some other kind of verse--though it is the way with people to tack on 'poet' to the name of a metre, and talk of elegiac-poets and epic-poets, thinking that they call them poets not by reason of the imitative nature of their work, but indiscriminately by reason of the metre they write in.

索夫农 、森那库斯和苏格拉底式的对话采用的模仿没有一个公共的名称；三音步诗、挽歌体或其他类型的诗的模仿也没有——人们把&诗人&这一名词和格律名称结合到一起，称之为挽歌体诗人或者史诗诗人，他们被称为诗人，似乎只是因为遵守格律写作，而非他们作品的模仿本质。

The relationship between communicative competence and grammar teaching should be that of the ends and the means.

交际能力和语法的关系应该是目标与途径的关系。