Institutul National de Cercetare-Dezvoltare Pentru Textile si Pielarie (INCDTP) Sucursala Institul de Cercetare Pielarie Incaltaminte (ICPI)
发明人:
申请号：
EP15464007.2
公开号：
EP3170393A1
申请日:
2015.11.24
申请国别(地区):
EP
年份:
2017
代理人:
摘要：
The invention relates to a product based on collagen polydispersions used for cereal seed treatment in order to stimulate growth, reduce the intake of pesticides and the process of manufacturing thereof.Extraction of collagen polydispersions from leather waste occurs in two phases carried out through a compact process in the first phase through alkaline hydrolysis of chrome tanned leather waste, with 8-12% calcium oxide, or thermal hydrolysis of rawhide waste, at a solid/liquid ratio of 1/4, at a temperature of 70.....85°C, stirring for a period of 3.....5 hours and static until the next day without thermal input, followed by enzymatic hydrolysis with enzymatic preparation Alcalase 2.4L in concentration of 2.5.....4.5 enzyme units/total nitrogen gram, at a temperature of 63°C ± 2°C continuously stirring for 3.....5 hours for tanned leather waste, and static until the next day without thermal input in the case of extraction from rawhide waste. This process enables protein mass recovery in a proportion of 85.....95% and cleavage of peptide chains, yielding collagen polydispersions containing free amino acids, with average molecular weight of 4000-6000 Da for systemic cereal seed treatment, with effects on stimulating germination and increasing resistance to insect and fungal attacks.
