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酵母提取物

酵母提取物用途

酵母提取物是酵母可溶性部分的浓缩物,尤其是酿酒酵母。酵母提取物的主要营养成分包括部分水解蛋白,游离氨基酸含量为35-40%,还含有B族维生素和一些微量元素。酵母提取物可作为细菌培养基的营养物质[1]。

酵母提取物名称

[ CAS 号 ]:
8013-01-2

[ 中文名 ]:
酵素

[ 英文名 ]:
Yeast extract

[中文别名 ]:

[英文别名 ]:

EINECS 232-387-9
4-Bromo-2,2-diphenylbutyric acid
MFCD00132599
Benzeneacetic acid, α-(2-bromoethyl)-α-phenyl-
4-bromo-2,2-diphenylbutanoic acid
Yeast extract

酵母提取物生物活性

[ 描述 ]:

[ 相关类别 ]:

研究领域 >> 其他

[参考文献]

[1]. Tomé D. Yeast extracts: Nutritional and flavoring food ingredients. ACS Food Science & Technology, 2021, 1(4): 487-494.

酵母提取物物理化学性质

[ 密度 ]:
1.4±0.1 g/cm3

[ 沸点 ]:
365.8±21.0 °C at 760 mmHg

[ 分子式 ]:
n_.a_.

[ 分子量 ]:
319.193

[ 闪点 ]:
175.0±22.1 °C

[ 精确质量 ]:
318.025543

[ LogP ]:
4.59

[ 外观性状 ]:
powder | slightly brown

[ 蒸汽压 ]:
0.0±0.9 mmHg at 25°C

[ 折射率 ]:
1.606

[ 储存条件 ]:
2-8°C

[ 水溶解性 ]:
H2O: 2%, turbid, yellow

酵母提取物安全信息

[ 个人防护装备 ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ 危害码 (欧洲) ]:
Xi

[ 风险声明 (欧洲) ]:
36/37/38

[ 安全声明 (欧洲) ]:
26-36

[ 危险品运输编码 ]:
NONH for all modes of transport

[ WGK德国 ]:
3

[ RTECS号 ]:
ZF6610000

酵母提取物制备

1.所用原料以啤酒酵母、葡萄酒酵母和面包酵母为主，分自溶法、加酶法和酸水解法等。一般以自溶法为主，即利用酵母本身所存在的葡聚糖酶(Glueanase)和蛋白酶自溶后质壁分离(plasmolysis)而得。其工艺为面包活性干酵母加水成酵母悬浮液，在浓度5%、酶解温度50℃、Ph6.5以下酶解60h，然后加热灭酶后分离以除去菌体，再用水提取后减压浓缩杀菌而成。亦可进一步作热风干燥或喷雾干燥。

酵母提取物文献

The mitosis-to-interphase transition is coordinated by cross talk between the SIN and MOR pathways in Schizosaccharomyces pombe.

J. Cell Biol. 190(5) , 793-805, (2010)

The mechanisms that regulate cytoskeletal remodeling during the transition between mitosis and interphase are poorly understood. In fission yeast the MOR pathway promotes actin polarization to cell ti...

LsrR quorum sensing "switch" is revealed by a bottom-up approach.

PLoS Comput. Biol. 7(9) , e1002172, (2011)

Quorum sensing (QS) enables bacterial multicellularity and selective advantage for communicating populations. While genetic "switching" phenomena are a common feature, their mechanistic underpinnings ...

Hypoxia modifies the feeding preferences of Drosophila. Consequences for diet dependent hypoxic survival.

BMC Physiol. 10 , 8, (2010)

Recent attention has been given to the relationships between diet, longevity, aging and resistance to various forms of stress. Flies do not simply ingest calories. They sense different concentrations ...

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