大豆蛋白胨

产品简介：

-英文名称：SOY BEAN PEPTONE

-工艺简介：大豆蛋白胨是采用优质大豆经过脱脂后再经消化，过滤，浓缩，喷雾干燥而得到的一种浅黄色至白色的干燥粉末。

- Production Introduction：Soybean peptone is a light yellow to white dry powder obtained from high-quality soybeans after being defatted and then digested, filtered, concentrated and spray-dried.

-CAS号：91079-46-8

-产品简介：黄色粉末或细小颗粒状，具有特殊气味，溶于水，水溶液呈淡黄色，极易吸潮。

用蒸馏水或去离子水配置2%溶液，加热至完全溶解，溶液呈琥珀色，澄清透明，无沉淀，PH5 ~ 7。

-PRODUCT DESCRIPTION: Yellow powder or fine particles, with special odor. Soluble in water. The aqueous solution is in light yellow color. This product tend to easily absorb moisture.

Prepare 2% solution with distilled water or deionized water, heat it until it completely dissolve. The solution will turn to amber color, clear and transparent without precipitation, PH5~7.

-产品用途：本产品富含碳水化合物和维生素，适用于包括真菌在内绝大部分细菌的生长。

-Product use: This product is rich in carbohydrates and vitamins, suitable for the growth of most bacteria including fungus.

理化标准 Physicochemical Index	标准 Standard
	生化级 Biochemical Grade
总氮含量 Total Nitrogen Content	≥ 10%
氨基氮含量 Amino Nitrogen Content	≥ 3%
干燥失重 Loss on Drying	＜ 5%
灰分 Ash Content	＜ 15%

细菌学指标 Bacteriological index	试验菌株 Test strain	标准 Standard
		生化试剂级 Biochemical reagent grade
硫化氢试验 Hydrogen sulfide test	大肠埃希氏杆菌  Escherichia coli	阴性 Negative
	伤寒沙门氏菌 Salmonella typhi	阳性 Positive
靛基质试验 Indole test	大肠埃希氏杆菌 Escherichia coli	阳性 Positive
	伤寒沙门氏菌 Salmonella typhi	阴性 Negative
V-P试验 V-P test	大肠埃希氏杆菌 Escherichia coli	阴性 Negative
	产气杆菌 bacterium aerogens	阳性 Positive
灵敏度 Sensitivity	大肠埃希氏杆菌 Escherichia coli	10-6
	乙型溶血性链球菌 Beta  hemolytic streptococcus	10-6
	沙门氏菌 Salmonella	10-6