Basic information
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Consensus Reports
Reported in EPA TSCA Inventory.
Specification
The CAS registry number of Yeast extract is 8013-01-2. It often contains free glutamic acid. The liquid form of this product can be dried to a light paste or a dry powder. In addition, it is used as food additives or flavourings, or as nutrients for bacterial culture media.
Preparation and uses of Yeast extract: it can be extracted from various yeast such as beer yeast, wine yeast and Saccharomyces cerevisiae. The autolysis method is the main method to produce it. The glucanase and protease of the yeast will take place plasmolysis after autolysis reaction. And it is a kind of vitamin medicine which can be used to treat vitamin B1 deficiency. In addition, it can used as a flavoring, stabilizers, emulsifier and thickener.
When you are using this chemical, please be cautious about it as the following:
It is irritating to eyes, respiratory system and skin. When you are using it, wear suitable protective clothing. In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
The toxicity data is as follows:
| Organism | Test Type | Route | Reported Dose (Normalized Dose) | Effect | Source |
|---|---|---|---|---|---|
| mouse | LD50 | intraperitoneal | > 8gm/kg (8000mg/kg) | BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Toho Igakkai Zasshi. Journal of Medical Society of Toho University. Vol. 23, Pg. 295, 1976. |
| rat | LD50 | intraperitoneal | 4500mg/kg (4500mg/kg) | SENSE ORGANS AND SPECIAL SENSES: MYDRIASIS (PUPILLARY DILATION): EYE BEHAVIORAL: CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD LUNGS, THORAX, OR RESPIRATION: DYSPNEA | Toho Igakkai Zasshi. Journal of Medical Society of Toho University. Vol. 23, Pg. 295, 1976. |