volatile acid

The contents of titration acid and volatile acid increase distinctly .

各样品的总酸和挥发酸含量差异显著；

Comparable Analysis of Total Volatile Acid in Domestic Flue-cured Tobacco

国产烤烟挥发酸含量的对比分析

Controlling of Volatile Acid Amount in the Fermentation of Litchi Wine

荔枝酒发酵过程中挥发酸含量的控制

Inoculating concentration Mainly influenced MLF rate and volatile acid .

酒类酒球菌接种量主要影响苹果酸-乳酸发酵速率和挥发酸生成量。

TFA is a strong volatile acid , can be recovered by distillation .

三氟乙酸一种强挥发性酸，可以利用蒸馏的方式直接回收。

The total volatile acid in 170 tobacco samples from 5 provinces of China grown in 2002 and 2003 were determined and compared .

测定了2002、2003年全国6产区170个烤烟烟叶样品的总挥发酸含量，并对其差异显著性进行了分析。

In Gas Chromatograph , the peak area values of volatile acid and non-volatile acid in test group were smaller than those in control group .

气相色谱分析可看出，实验组的挥发酸、非挥发酸峰面积小于对照组，乳酸亦然。

The fermentation quality got better in the aspects of alcoholicity , acidity , volatile acid , reducing sugar and total sugar etc. ;

发酵质量在酒度、酸度、挥发酸、还原糖、总糖等方面均好于高温蒸煮；

The leading content of the experiment was decreasing volatile acid through adding alkalinity and trace metal elements and adopting the way of circumfluence .

试验中分别考察了碱度、微量金属元素、回流比对出水挥发酸的影响。

Using volatile acid and alkali to regulate the pH of pressed juice from bamboo shell , saltless Fraction ⅰ and Fraction ⅱ were got separately .

采用挥发性酸和碱调节鲜笋壳压榨液pH值，分别获得无盐FractionⅠ和fractionⅡ；

The influences of temperature , initiative acidity , and the addition amount of potassium propionate on reducing volatile acid in the fermentation of litchi wine were approached .

研究了荔枝酒发酵过程中温度、起始酸度以及添加丙酸钾量对减少挥发酸的影响。

The primary and secondary factors of affecting the content of volatile acid were the content of SO_2 , the ratio of citric acid and malic acid , the content of acid and the fermentation temperature .

影响龙眼果酒中挥发酸含量的因素主次顺序为：二氧化硫的添加量、柠檬酸和苹果酸的比例、酒醪的含酸量和发酵温度。

And test and examine the content of schizandrol A and schisandrin A , alcohol content , total acid , volatile acid , total ester , light transmission rate , residual sugar , and other indicators .

并检测其五味子醇甲和甲素等功能成分的含量及酒度、总酸、挥发酸、总酯、透光率、残糖等各项指标。

The change of some main chemical compositions , such as sugar , acid , tannin , volatile acid , ethanol , methanol , ester and so on , during manual fermentation in strawberry wine was investigated .

研究了草莓酒人工发酵过程中一些主要成分如糖、酸、单宁、挥发酸、乙醇、甲醇、高级醇和酯等物质含量的变化。

Orthogonal designing experiment was carried out to study the effect of pretreatment technology on longan wine brewing , and the selection of longan wine yeast strain , the factors affecting content of volatile acid , the brewing technology was optimized .

研究了龙眼果酒酿造中前处理方式对果酒发酵的影响，进行了不同发酵菌株的筛选，并以正交试验研究影响龙眼果酒挥发酸含量的因素，进行了工艺优化。

The results show that the Volatile acid increasing ratio ( VA , as acetic acid ) ranged from - 11 % to 408.3 % , volatile solid ( VS ) degradation ratios of 27.3 % to 46.3 % and pH values of 4.71-5.01 were obtained .

结果显示，pH值范围为5.014.71，挥发性有机酸的增长率范围为-11%408.3%、挥发性固体的降解率范围是27.3%46.3%、基于表面降解动力学常数范围是1.081.4。

When the surface treatment of special steels is conducted by using the mixed acid formed with Nitric acid ( HNO3 ) and other acids , there will occur a lot of NOx and other Volatile acid mist which become the main pollution source of metallurgical enterprises .

采用硝酸与其它酸的混合酸对特殊钢进行表面处理时，会产生大量的NOx和其它挥发性酸雾，是冶金企业的主要污染源之一。

The acidification experiment of the original high concentration wastewater was carried out with dilution by gradient and batch type with the conclusions as follows : Acetic acid and butyric acid were the main forms of volatile acid ( VFA ) components of the alcohol wastewater acidification .

结果表明，糖质废水酸化的挥发酸（VFA）组分以乙酸和丁酸为主要形式；

Primary study on the convenient detection of volatile organic acid in beer with GC analysis

气相色谱分析啤酒中挥发性有机酸的简单方法初探

Relationship of total volatile fatty acid , gas production and feed nutrients in vitro

体外法研究总挥发性脂肪酸和产气量与饲料营养成分的关系

Relationship between Tapping Systems and Volatile Fatty Acid Number of Natural Rubber Latex

割胶制度与天然胶乳挥发脂肪酸值的关系

Research on accumulation characteristics of volatile fatty acid in an anaerobic sequencing batch reactor

厌氧序批式反应器内挥发性脂肪酸积累特性研究

Study on the relation between volatile fatty acid number and electric conductivity of natural rubber latex

天然胶乳的挥发脂肪酸值与电导率关系的探索

Alkalinity improved production of volatile fatty acid from anaerobic fermentation of textile dyeing sludge

碱性条件促进纺织印染污泥厌氧发酵产挥发性脂肪酸

Effect of ISCA on volatile fatty acid and cellulose disappearance in rumen

ISCA对瘤胃挥发性脂肪酸代谢及纤维素降解率的影响

Study on the methods of determination of volatile fatty acid in the rumen liquid of lambs by gas chromatography

气相色谱测定羊瘤胃液中挥发性脂肪酸方法研究

Rumen Ciliate Protozoal Fauna and Volatile Fatty Acid Concentration of Buffalo in China

中国水牛瘤胃纤毛虫分布与挥发性脂肪酸的研究

A colorless poisonous volatile liquid acid that hydrolyzes readily to ammonia and carbon dioxide .

一种无色有毒的挥发性液态酸，容易水解为氨水和二氧化碳。

The relational order of elevation and organic acid was the nonvolatile organic acid , total organic acid and volatile organic acid .

海拔与有机酸各项指标的灰色关联序依次为非挥发性有机酸、有机酸总量、挥发性有机酸。

A simple method is described that can be used to determine bicarbonate and volatile fatty acid in wastewater by a two-stage sequential titration .

用二终点连续滴定方法测定污水中的碳酸氢根和挥发性脂肪酸的含量，结果准确，方法简单易行，值得应用。