老妇性hqmaturetube,欧洲人妻丰满av无码久久不卡 ,沈阳45岁老阿姨叫的没谁了,2012中文字幕

OXOID酵母粉Yeast Extract LP0021

規(guī)格：500g/瓶  25KG/桶

干酵母的自溶產物，富有氨基氮和維生素，尤其是水溶性維生素B復合物的含量豐富。它是許多培養(yǎng)基的組份之一，也常用于發(fā)酵肉湯以促進細菌的生長。當需要細菌快速、大量繁殖時，也推薦使用LP0021.

成分分析：每批平均（%W/W）

總氮              10.9

氨基氮            5.3

氯化鈉            0.3

PH（2%溶液）     7.0

OXOID酵母粉Yeast Extract LP0021

OXOID酵母粉Yeast Extract LP0021

This is a dried yeast autolysate which is a good source of amino-nitrogen and vitamins, particularly the water soluble B-complex vitamins. Its addition to many media or fermentation broths increases the yield of organisms and is recommended where rapid and luxuriant growth is required.