lactose test 中文意思是什麼
lactose test
解釋
乳糖試驗-
On the base of the single factor, three c sources, three n sources and mineral were selected for the homogeneous test. the results of the coefficients showed that the influence of peptone was the most important ; then corn steep liquor, lactose and cuso4 5h2o ; the effects of others were small
在單因素試驗基礎上對菌體生長比較有利的3種碳源、氮源和無機鹽進行了均勻試驗，標準回歸系數表明；蛋白腖的影響最為顯著，其次為；玉米漿，乳糖， cuso _ 4 ? 5h _ 2o ，其他影響不大。 -
Deproteinized from crude polysaccharide by adopting sevag method. through orthogonal test, we found that the best constitution for extracting polysaccharide from porphyridium aerugineum 755 were as follow : alcohol concentration was 50 %, alcohol volume was 3 - fold time, percolation time was 1. 5h, the volume ratio of glycoprotein solution to sevag reagent was 1 : 2, time was 15min and sevag reagent was 4 : 1 between chloroform and butanol. the result also indicate that lactose and ( nh4 ) 2so4 were the best carbonic and nitrogen sources for polysaccharide respectively
研究結果表明，三種紫球藻的最佳提取工藝各不相同，銅綠紫球藻的最優提取工藝為乙醇濃度50 ，乙醇用量為3倍體積，醇沉時間為1 . 5小時；氯仿與正丁醇的比例4 ： 1 ，樣液與sevag試劑的比例1 ： 2 ，作用時間為15min ；由方差分析可得五種碳源和五種氮源對胞外多糖的影響不顯著，其中添加乳糖和（ nh _ 4 ） _ 2so _ 4的培養基多糖產率最高，分別為37 . 296mg l和12 . 961mg l 。
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