GB532458A - Improvements in or relating to the manufacture of rennet - Google Patents
Improvements in or relating to the manufacture of rennetInfo
- Publication number
- GB532458A GB532458A GB2132039A GB2132039A GB532458A GB 532458 A GB532458 A GB 532458A GB 2132039 A GB2132039 A GB 2132039A GB 2132039 A GB2132039 A GB 2132039A GB 532458 A GB532458 A GB 532458A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rennet
- acids
- solution
- sodium
- precipitate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12N—MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA
- C12N9/00—Enzymes; Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating or purifying enzymes
- C12N9/14—Hydrolases (3)
- C12N9/48—Hydrolases (3) acting on peptide bonds (3.4)
- C12N9/50—Proteinases, e.g. Endopeptidases (3.4.21-3.4.25)
- C12N9/64—Proteinases, e.g. Endopeptidases (3.4.21-3.4.25) derived from animal tissue
- C12N9/6421—Proteinases, e.g. Endopeptidases (3.4.21-3.4.25) derived from animal tissue from mammals
- C12N9/6478—Aspartic endopeptidases (3.4.23)
- C12N9/6481—Pepsins (3.4.23.1; 3.4.23.2; 3.4.23.3)
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Zoology (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Biomedical Technology (AREA)
- Genetics & Genomics (AREA)
- Biotechnology (AREA)
- Microbiology (AREA)
- Medicinal Chemistry (AREA)
- Biochemistry (AREA)
- General Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Peptides Or Proteins (AREA)
- Medicines Containing Plant Substances (AREA)
Abstract
532,458. Rennet. BENGERS FOOD, Ltd., THORNLEY, B. D., and HILTON, S. July 22, 1939, No. 21320. [Class 2 (iii)] Rennet is prepared by extracting the initial material with a salt solution of concentration up to 10 per cent. at pH 4.6-7 and then adding a suitable acid to bring the solution to a pH less than 3.6, preferably 1.5, to precipitate the rennet. Suitable salts for the extraction are sodium and ammonium chlorides and sulphates and magnesium sulphate. The precipitate may be allowed to stand for a time, such as 1-3 days in a solution of pH less than 2, such as the mother-liquor. Suitable acids are hydrochloric, nitric, sulphuric and trichloracetic acids. Additional salt may be added to the extract before or after the precipitation. Examples describe the preparation of rennet from dried vells, using sodium chloride and sodium sulphate for the extraction and hydrochloric, trichloracetic and sulphuric acids as acidifying agents. Specification 503,730 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2132039A GB532458A (en) | 1939-07-22 | 1939-07-22 | Improvements in or relating to the manufacture of rennet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2132039A GB532458A (en) | 1939-07-22 | 1939-07-22 | Improvements in or relating to the manufacture of rennet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB532458A true GB532458A (en) | 1941-01-24 |
Family
ID=10160882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2132039A Expired GB532458A (en) | 1939-07-22 | 1939-07-22 | Improvements in or relating to the manufacture of rennet |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB532458A (en) |
-
1939
- 1939-07-22 GB GB2132039A patent/GB532458A/en not_active Expired
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