GB929137A - Improvements in and relating to colloidal solutions - Google Patents

Improvements in and relating to colloidal solutions

Info

Publication number
GB929137A
GB929137A GB3282061A GB3282061A GB929137A GB 929137 A GB929137 A GB 929137A GB 3282061 A GB3282061 A GB 3282061A GB 3282061 A GB3282061 A GB 3282061A GB 929137 A GB929137 A GB 929137A
Authority
GB
United Kingdom
Prior art keywords
collagen
proteolytic enzyme
acid
colloidal solution
fibres
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
Application number
GB3282061A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nihon Hikaku KK
Original Assignee
Nihon Hikaku KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nihon Hikaku KK filed Critical Nihon Hikaku KK
Publication of GB929137A publication Critical patent/GB929137A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09H—PREPARATION OF GLUE OR GELATINE
    • C09H3/00—Isolation of glue or gelatine from raw materials, e.g. by extracting, by heating
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
    • C08H1/00—Macromolecular products derived from proteins
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08H—DERIVATIVES OF NATURAL MACROMOLECULAR COMPOUNDS
    • C08H1/00—Macromolecular products derived from proteins
    • C08H1/06—Macromolecular products derived from proteins derived from horn, hoofs, hair, skin or leather
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L89/00—Compositions of proteins; Compositions of derivatives thereof
    • C08L89/04—Products derived from waste materials, e.g. horn, hoof or hair
    • C08L89/06—Products derived from waste materials, e.g. horn, hoof or hair derived from leather or skin, e.g. gelatin

Abstract

A process for the production of a colloidal solution of insoluble collagen fibres such that the collagen is in a fibre reproducible state, the collagen being insoluble in dilute acid, alkali or neutral salt solution, comprises either heating the collagen to at least the shrinkage temperature thereof or treating the collagen with a protein denaturing agent in at least a sufficient amount to denature the collagen, treating the collagen with a proteolytic enzyme other than collagenase which has activity at a pH from 5 to 9 and extracting the collagen with acid at a pH from 1.5 to 4.5. The proteolytic enzyme may be trypsin, pancreatin or chymotrypsin and the colloidal solution may be further treated with a proteolytic enzyme having activity at pH 1.0 to 4.5 such as pepsin. The protein denaturing agent may be potassium thiocyanate, calcium, magnesium or barium chloride, urea, sodium salicylate or guanidine hydrochloride, and the acid may be hydrochloric, acetic, sulphuric, citric, malonic or lactic acid. The colloidal solution may be treated with an alkali such as sodium or ammonium hydroxide to a pH of from 7 to 8 to reproduce the collagen fibres. Gelatin may be produced by dissolving in hot water reproduced collagen fibres which have been prepared by a process incorporating the step of treatment with a proteolytic enzyme having activty at pH 1.0 to 4.5. Specification 903,975 is referred to.
GB3282061A 1960-09-19 1961-09-13 Improvements in and relating to colloidal solutions Expired GB929137A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3836460 1960-09-19

Publications (1)

Publication Number Publication Date
GB929137A true GB929137A (en) 1963-06-19

Family

ID=12523211

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3282061A Expired GB929137A (en) 1960-09-19 1961-09-13 Improvements in and relating to colloidal solutions

Country Status (2)

Country Link
DE (1) DE1470904A1 (en)
GB (1) GB929137A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2510809A2 (en) 2011-04-15 2012-10-17 Select Pet Products Europe Degradable animal chew toy and method of making same
US8613261B2 (en) 2010-11-22 2013-12-24 Salix Animal Health, Llc Method of making a degradable animal chew toy

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE426902B (en) * 1980-05-23 1983-02-21 Einar Sjolander SINGLE WRAP AND SET FOR ITS PREPARATION

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8613261B2 (en) 2010-11-22 2013-12-24 Salix Animal Health, Llc Method of making a degradable animal chew toy
US9265233B2 (en) 2010-11-22 2016-02-23 Spectrum Brands, Inc. Degradable animal chew toy
EP2510809A2 (en) 2011-04-15 2012-10-17 Select Pet Products Europe Degradable animal chew toy and method of making same

Also Published As

Publication number Publication date
DE1470904A1 (en) 1969-04-17

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