Metod för behandling av björkbark och användning av produkten

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专利权人:

UPM-KYMMENE CORPORATION

发明人:

HOTANEN, ULF,PIETARINEN, SUVI

申请号：

FI20115513

公开号：

FI20115513A

申请日:

2011.05.24

申请国别(地区):

FI

年份:

2012

代理人:

摘要：

The present invention provides an improved method for obtaining a bark extract by hydrolysis and acidification in the presence of water. The method comprises the steps of subjecting birch bark to hydrolysis； separating the undissolved bark portions from the hydrolysis liquid； providing a liquid phase and acidifying this liquid phase； precipitating the extracts from the liquid phase by raising the relative amount of water in the liquid phase and recovering the extract. Further the invention relates to an animal feed obtainable by this method and to the use of the birch bark extract in food, animal feed, pulp, paper and board, pigments and barriers for paper coating.

来源网站：

中国工程科技知识中心

来源网址：

http://www.ckcest.cn/home/