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METHOD FOR PRODUCING HIGHLY DIGESTIBLE HYDROLYZED KERATINACEOUS MATERIAL
专利权人:
发明人:
申请号:
EP17700439.7
公开号:
EP3402340A1
申请日:
2017.01.16
申请国别(地区):
EP
年份:
2018
代理人:
摘要:
The invention relates to a method for producing digestible, partly hydrolyzed keratinaceous material, preferably from feathers, hair, wool, hooves or nails, comprising the steps of (1) hydrolyzing keratinaceous material in the presence of water, in a hydrolyser with heat and at a pressure between about 2 bar and about 15 bar, and (2) concurrently drying and grinding the resultant hydrolyzed keratinaceous material in an air turbulence mill at about atmospheric pressure such that the drop in pepsin and/or ileal digestibility is less than 10%, and/or the pepsin and ileal digestibility remain higher than respectively 75% and 80%, wherein the resultant keratinaceous material comprises at least partly insoluble material, and wherein the average particle size of the dry product leaving the air turbulence mill measured as d50 in volume fraction, as measured with laser diffraction using a dry powder Beckman Coulter particle size analyzer, is between about 20 µm and about 0.7 mm and the d90 is below about 1 mm..
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