An improved method for solubilisation of wool keratin using peracetic acid

被引：79
作者：
Shavandi, Amin [1 ]
Carne, Alan [2 ]
Bekhit, Adnan A. [3 ]
Bekhit, Alaa El-Din A. [1 ]
机构：
[1] Univ Otago, Dept Food Sci, Dunedin, New Zealand
[2] Univ Otago, Dept Biochem, Dunedin, New Zealand
[3] Univ Alexandria, Dept Pharmaceut Chem, Fac Pharm, Alexandria, Egypt
来源：
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2017年 / 5卷 / 02期
关键词：
Peracetic acid; Oxidation; Keratin extract; Wool; HUMAN HAIR; IONIC LIQUIDS; ALPHA-KERATIN; FORMIC-ACID; DISSOLUTION; REGENERATION; PROTEIN; FIBERS; FILMS;
D O I：
10.1016/j.jece.2017.03.043
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Keratin in wool is a potentially important natural source of protein with many applications. However, solubilisation of keratin from wool is challenging. The yield of solubilised keratin was investigated using peracetic acid (PA) treatment of wool. The yield of keratin obtained by extraction of wool with various concentrations of PA (6, 12, 24 and 36%) with 1, 2, or 3 days of treatment time was examined. Treatment of wool for two days with 24% PA was found to be the optimum treatment condition, resulting in a 57% yield of water soluble keratin (WSK) and a 40% yield of insoluble keratin (ISK). The physicochemical properties of the obtained keratin samples were determined using XRD, FTIR and SDS-PAGE. FTIR analysis of the WSK and ISK showed both extracts had a high content of cysteine-S-sulfonated residues and SDS-PAGE confirmed that the extracts contained proteins in the 40-60 kDa molecular weight range.
引用
收藏
页码：1977 / 1984
页数：8
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