期刊
CHEMICAL ENGINEERING COMMUNICATIONS
卷 209, 期 1, 页码 118-126出版社
TAYLOR & FRANCIS INC
DOI: 10.1080/00986445.2020.1842740
关键词
Bovine hair; hair-saving process; keratin recovery; leather waste; protein hydrolysis
资金
- National Council for Scientific and Technological Development (CNPq)
- Science without Borders Program
This study aimed to recover keratin from bovine hair through hydrolysis. The results showed that proteins with higher molecular weights could be extracted from bovine hair, turning it into a valuable resource.
Hair waste from unhairing of bovine hide has high protein content and is also a current issue in tanneries as it causes high organic load to the wastewater. Given that, this study aims to recover keratin from bovine hair by investigating its hydrolysis from remaining solid hair from leather processing and unprocessed hair. For the keratin hydrolysis, 2-mercaptoethanol, Na2S, H2O2, NaOCl, NaOH, C2H4O2S, and HCOOH were tested. SDS-PAGE and the yield analysis of the extracted solution indicated that it was possible to recover proteins with molecular weights around 20 kDa, reusing this hair waste. In an oxidizing pathway (H2O2), 75% of the protein was extracted from the recovered hair powder, and a yield of up to 40% was achieved with Na2S in a reductive pathway. Overall, the results demonstrated good recovery of keratin from bovine hair, turning what was previously considered waste into an interesting source of this protein.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据