propionic acid 中文意思是什麼
propionic acid
解釋
丙酸-
Study on isobaric vapor - liquid equilibrium of methanol - propionic acid - h2o multisystems
水多元系汽液平衡研究 -
Mercapto propionic acid
巰基丙酸 -
Using niobic acid as catalyst, cyclohexane as dehydrant, benzyl propionate was synthesized based on propionic acid and benzyl alcohol
摘要以鈮作催化劑，環己烷為帶水劑，用丙酸和苯甲醇直接合成了丙酸芐酯。 -
Determination of propionic acid, propionate in feeds
飼料中丙酸丙酸鹽的測定 -
But in s. mycarofaciens, there is no distinctive propionate kinase, so that the utilization rate of propionic acid is lower than that of acetic acid. for this reason, it is hoped that the higher producers would be obtained by protoplast interspecies fusion between s. mycarofaciens and s. erythreus, which would transfer propionate kinase of s. erythreus to s. mycarofaciens. therefore, the fusion cells could use propionic acid as precursor in synthesis of mdma _ ( 1 ), which would reduce the production costs
根據文獻報道，紅黴素鏈黴菌中的丙酸激酶對丙酸的利用率是對乙酸的利用率的13倍；而在生米卡鏈黴菌中，無特異的丙酸激酶，菌體對丙酸的利用低於對乙酸的利用，因此希望利用原生質體種間融合的方法將紅黴素鏈黴菌的丙酸激酶基因轉移到生米卡鏈黴菌中，從而使融合子能夠利用丙酸鹽作為合成mdma _ 1的前體，提高mdma _ 1的產量，降低生產成本。 -
464 and erythromycin producer s. erythreus as original strains, studies were carried out for researching higher producers and enhancing content of midecamycin ( mdm ) ai, which could use propionate as precursor to reduce production costs. according to the literature, the utilization rate of propionic acid is thirteen times to that of acetic acid by propionate kinase in s. erythreus
本論文主要研究了生米卡鏈黴菌與紅黴素鏈黴菌原生質體種間融合育種，以提高麥迪黴素a _ 1 （ mdma _ 1 ）的組分，增加其對丙酸鹽的利用度，降低生產成本。 -
Methods 3, 3 - bis ( dibenzyloxyphosphoiyl ) propionic acid ( 5 ) and ( 6 ) were synthesized from tetraethyl methylene bisphosphonate via hydrolysis, chlorination of the acid, esterification, condensation, then 3, 3 - bis ( dibenzyloxyphosphoryl ) propanol ( 6 ) was obtained via selective reduction of ( 5 )
方法以亞甲基偕二膦酸四乙酯（ 1 ） ?原料經水解、氯膦酰化、酯化、縮合得3 ， 3二（二芐氧膦酰基）丙酸（ 5 ） ，隨后選擇性硼氫化還原得3 ， 3二（二芐氧膦酰基）丙醇（ 6 ） 。 -
Bromo propionic acid methyl ester
氯丙酸甲酯 -
Iron ; tetranuclear complex ; propionic acid ; 2, 2 - bipyridine ; crystal structure
鐵四核配合物丙酸2 ， 2 -聯吡啶晶體結構 -
The factors influencing on the yield of benzyl propionate, such as the dosage of catalyst, molar ratio of benzyl alcohol to propionic acid, reaction time and the amount of cyclohexane and so on, were investigated
考察了催化劑用量、苯甲醇與丙酸物質的量比、反應時間和帶水劑環己烷用量等因素對丙酸芐酯收率的影響。 -
This paper is focused on reviewing the present application - oriented research of extraction technique based on chemical complexation in food analyzing, separating of amino acid fermented liquid, disposing of citric liquid waste, separating of lactic acid fermented liquid and separating of propionic acid fermented liquid
摘要綜述了絡合萃取技術在食品分析、氨基酸發酵液分離、檸檬酸廢水處理、乳酸發酵液分離和丙酸發酵液分離中的應用特點和研究進展。 -
The synthesis of poly ( - hydroxybutyrate - co - - hydroxyvalerate ) by the strain g - iiiy from different precusor was studied. it was found that the strain g - iiiy could accumulate phbv with sucrose as carbon source and propionic acid or valeric acid as precursor. in 2l self - controlled fermentor, the dry cell weight, phbv concentration and phbv content reached 35. 8g ? l - 1, 22. 6g ? l - 1 and 38. 4 % respectively in the case of fermentation for 42 hours and the propionic acid as precursor
研究了添加不同前體物， g - y菌株生產聚-羥基丁酸和聚-羥基戊酸共聚物（ phbv ）的發酵條件，結果表明，此菌株能以丙酸或戊酸為前體，在蔗糖為碳源的條件下合成phbv共聚物；在2l發酵罐中，以丙酸為前體，發酵16小時開始流加丙酸，根據發酵液ph值變化控制丙酸流加量，發酵42小時，細胞干重、 phbv產量和含量分別達到35 . 8g / l ， 22 . 6g / l ， 63 . 13 。 -
Isolation and primary charaterization of propionibacteria for propionic acid fermentation
丙酸桿菌的分離與初步鑒定 -
Manufactures a small but diverse range of primarily organic chemicals. bulk products include anthraquinone disulfonate and dimethylol propionic acid
-專業化開發研製生產醫藥農藥中間體石油助劑和新型建築防水材料的工廠。 -
Workplace air - determination of propionic acid - gas chromatographic method
車間空氣中丙酸的氣相色譜測定方法 -
Food additive propionic acid
食品添加劑.丙酸 -
Bromo - 2 - methyl propionic acid
甲基丙酸 -
Dl - 2 - phenyl propionic acid
苯基丙酸
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