异丁酸

体外发酵试验表明，葡萄皮渣纤维可使接种人粪便提取液的体外发酵液pH值显著降低，并能产生乙酸、丙酸、丁酸和异丁酸等短链脂肪酸。

Vitro fermentation experiments showed that GPF can significantly reduce pH in vitro fermentation with the inoculation of human fecal bacteria , and produce short-chain fatty acids such as acetic acid , propionic acid , butyric acid and isobutyric acid .

目的：考察生物诱导子yeastextract和不同非生物诱导子（Ag+，Co2+，α-氨基异丁酸）协同作用对丹参毛状根培养生产丹参酮的影响。

Objective : To investigate the synergistic effects of a biotic elicitor yeast extract and different abiotic elicitors ( Ag ~ ( + ), Co ~ ( 2 + ) and α - amino isobutyric acid ) on the production of tanshinones in Salvia miltiorrhiza hairy root .

生物催化合成（R）-β-羟基异丁酸的工艺研究

Study on ( R ) - β - Hydroxyisobutyric Acid Synthetic Technique by Biocatalysis

α-羟基异丁酸阳离子交换色层法分离Am、Cm、Cf和Y

Separation of am , cm , CF and y by cation exchange with α - hydroxy isobutyric acid

LaCl3·7H2O催化合成异丁酸酯

Catalytic Synthesis of Isobutyrate over LaCl_3 · 7H_2O

采用直接沉淀法制备了异丁酸修饰纳米氧化锌微粒，用XRD、TEM、XPS、IR、UV-Vis、PL等检测手段对样品进行结构表征。

Isobutyric acid modified ZnO nanoparticles were prepared by direct precipitation method in water solution . The sample was characterized by TEM , XRD , IR , XPS , UV-Vis , PL.

采用一种新型的催化体系CaCl2·2H2O/K2S2O8/CF3COOH，将丙烷直接羰基化反应合成异丁酸，考察了反应过程中温度、反应时间、CO压力和催化剂等因素对反应收率的影响；

A novel catalytic system CaCl_2 · 2H_2O / K_2S_2O_8 / CF_3COOH was used for direct carboxylation of propane to give isobutyric acid . The effects of reaction temperature 、 reaction time 、 CO pressure and catalyst were investigated .

报道了在CTAB/正己烷和AOT/正己烷反胶束体系中，CCL脂肪酶催化合成异丁酸异戊酯的新方法。

A new method of lipase-catalyzed esterification of isoamyl isobutyrate by CCL in the reversed micelle of CTAB / n-hexane and AOT / n-hexane has been reported .

描述了以α-羟基异丁酸为淋洗剂的阳离子交换色层法分离Am，Cm，Cf和Y的实验程序，得到了令人满意的分离结果。

The experimental procedure for ion exchange separation of Am , Cm , Cf and Y by elution with α - hydroxy-isobutyric acid has been described . Using this technique , satisfactory separation for these elements has been obtained .

继而，测定了压力为101.325Pa，温度在313.15K、323.15K、333.15K下新物系甲基丙烯酸（1）&异丁酸（2）二元溶液全浓度内的超额摩尔体积。

The excess molar volumes of methacrylic acid - Isobutyric acid have been determined at 101.325 Pa and 313.15K , 323.15K , 333.15K over a wide range of compositions .

D-β-羟基异丁酸（DHIBA）是合成卡托普利的关键中间体，同时也是维生素、香料、抗生素的重要合成原料。

D - ( 3-hydroxyisobutyrate ( DHIBA ) is the key intermediate for synthesis of captopril , and is also the important raw materials for vitamins , spices and antibiotics .

磷钨酸催化合成异丁酸丁酯的研究

Study on the synthesis of butyl isobutyrate catalyzed by phosphotungstic acid

强酸性树脂催化合成异丁酸酯

Synthesis of alkyl isobutyrate catalyzed with strongly acidic cationic exchange resin

β-氨基异丁酸尿症、皮肤黑色素病与智力不足附一病例报告

β - Aminoisobutyric Aciduria , Neurocutaneous Melanosis and Mental Deficiency

稀土硝酸盐与α-羟基异丁酸配合物的合成及表征

Synthesis and Characterization of Rare Earth Nitrate Complexes with α - Hydroxyisobutyric Acid

硫酸氢钠催化合成食用香料异丁酸苯氧乙酯

Synthesis of flavor phenoxyethyl isobutyrate catalyzed by sodium bisulfate

乙酸异丁酸蔗糖酯原位凝胶流变学性质的研究

Rheological properties of sucrose acetate isobutyrate in situ gel

对甲苯磺酸催化合成异丁酸乙酯的研究

A Study of Catalytic Synthesis of Ethyl Isobutyrate with p Toluene Sulfonic Acid

钒取代三元钼杂多化合物对异丁酸氧化脱氢的催化作用

Catalytic Behaviour of the Oxidative Dehydrogenation of Isobutyl Acid on V-Substituted Molybdenum Heteropoly Compound

目的合成一种新型汽油辛烷值改进剂&甲氧基异丁酸烷基酯。

Aim To synthesize new type of octane number improver for gasoline , methoxyisobutyrate .

异丁酸对西门塔尔牛瘤胃发酵及尿嘌呤衍生物的影响

Effects of Isobutyrate on Rumen Fermentation and Purine Derivatives of Urine in Simmental Steer

硫酸镓催化合成异丁酸异戊酯的研究

Synthesis of Isoamyl Isobutyrate Catalyzed by Gallium Sulphate

2,2,4-三甲基-1,3-戊二醇单异丁酸酯的合成研究

Research on the Synthesis of 2,2,4-Trimethyl-1,3-pentanediol Isobutyrate

乙酸·异丁酸蔗糖酯是一种低级混合烷基酸酯。

The sucrose acetate isobutyrate ( SAIB ) is a mixed lower alkyl sugar ester .

季铵盐-α-羟基异丁酸体系中稀土的柱上萃取层析

The Column Extraction Chromatography of Rare Earths in the System of Quaternary Ammonium - Hydroxyisobutyric Acid

乙酸·异丁酸蔗糖酯的制备

Preparation of Sucrose Acetate Isobutyrate

新型自由基引发剂偶氮二异丁酸二甲酯的合成及其在聚合物多元醇生产中的应用

Synthesis of Novel Free Radical Initiator Dimethyl Azobisisobutyrate ( AIBME ) and Its Application in Polymeric Polyol Production

为进一步研究异丁酸在此催化剂上吸附及氧化脱氢反应机理提供某些信息。

Some information on further consideration of mechanism of adsorption and oxidative dehydrogenation of isobutylic acid on the catalysts was provided .

相转移催化法合成对氯苯氧异丁酸杂多酸催化剂的酸催化作用及其应用研究新进展

SYNTHESIS OF CLOFIBRIC ACID WITH THE PHASETRANSFER CATALYSIS The Acid Catalysis of Heteropoly Compounds and it 's Development on the Application

茶黄毒蛾是中国南方茶树上的重要害虫，其性引诱外激素经鉴定为10，14&二甲基十五碳异丁酸酯。

The sex attractant pheromone of the tea tussock moth , a serious economic pest of tea plantations in southern China , has been identified as10,14-dimethylpentadecyl isobutyrate .