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CLASS 9 EUROINVENT 2010 CLASA 9<br />
9.12.<br />
Title EN<br />
Titlu RO<br />
Process of extracting protein from chrome leather wastes and<br />
reducing the average molecular weight of collagen<br />
hydrolysates<br />
Procedeu de extragere a proteinelor din deseuri de piele<br />
cromata si reducere a masei moleculare medii a<br />
hidrolizatelor de collagen<br />
Authors<br />
Mihaela-Doina Niculescu, Carmen Cornelia Gaidau, Marian<br />
Crudu, Demetra Simion<br />
Institution The Leather and Footwear Institute (ICPI)<br />
Patent no. Pending RO A 00240<br />
Description<br />
EN<br />
Descriere<br />
RO<br />
The invention refers to a process of extracting protein from<br />
chrome leather wastes and reducing the average molecular<br />
weight of collagen hydrolysates. This procedure is applied to<br />
natural leather processing, to extract protein component from<br />
chromium tanned leather wastes. The technical problem that the<br />
invention solves is that of obtaining chromium-free collagen<br />
hydrolysates, with a diversified content of amino acids,<br />
including essential amino acids, by developing a process of<br />
extracting protein from chrome leather wastes and reducing the<br />
average molecular weight of collagen hydrolysates, which is<br />
conducted in two hydrolysis stages. Collagen hydrolysates<br />
containing amino acids have applications in agriculture, in the<br />
composition of foliar fertilizers for plant crops, but can also be<br />
used to obtain biodegradable packaging for seedlings, to<br />
encapsulate seeds, etc.<br />
Inventia se refera la un procedeu de extragere a proteinelor din<br />
deseuri de piele cromata si reducere a masei moleculare medii a<br />
hidrolizatelor de colagen. Acest procedeu se aplica in domeniul<br />
prelucrarii pieilor naturale, pentru extragerea componentei<br />
proteice din deseuri de piele tabacita cu crom. Problema tehnica<br />
pe care o rezolva inventia consta din obtinerea de hidrolizate de<br />
colagen lipsite de crom, cu un continut diversificat de<br />
aminoacizi, inclusiv aminoacizi esentiali, prin elaborarea unui<br />
procedeu de extragere a proteinelor din deseuri de piele cromata<br />
si reducere a masei moleculare medii a hidrolizatelor de<br />
colagen, care se desfasoara in doua etape de hidroliza.<br />
Hidrolizate de colagen cu continut de aminoacizi au aplicatii in<br />
domeniul agricol, in compozitia fertilizantilor foliari pentru<br />
cultura plantelor, dar pot fi folosite si pentru obtinerea<br />
ambalajelor biodegradabile pentru rasaduri, pentru incapsularea<br />
semintelor etc.<br />
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