Dissolution and characterization of biofunctional keratin particles extracted from chicken feathers

2nd International Conference on Mining, Material and Metallurgical Engineering

矿业工程;材料科学;冶金学

Sharma, Swati^1 ; Gupta, Arun^1 ; Bin Tuan Chik, Syed Mohd Saufi^1 ; Gek Kee, Chua Yeo^1 ; Poddar, Pradeep Kumar^1

Faculty of Chemical and Natural Resource Engineering, Universiti Malaysia Pahang (UMP), Lebuhraya Tun Razak, Gambang, Kuantan, Pahang

26300, Malaysia^1

关键词: Alkaline environment;    Biofunctional;    Chicken feathers;    Disulfide cross-links;    Isoelectric precipitation;    Keratin particles;    pH value;    Protein backbone;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/191/1/012013/pdf
DOI  :  10.1088/1757-899X/191/1/012013

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

In the present study chicken feathers were hydrolyzed in alkaline environment. The pH value of feather hydrolyzed solution was adjusted according to the principle of isoelectric precipitation. Three kinds of precipitates of keratin polypeptide were collected at pH of 3.5, 5.5 and 7.5 respectively. The keratin solution were freeze dried and denoted as FKP1, FKP2, FKP3 respectively. All keratin particles possessed smooth, uniform and round surface by scanning electron microscope (SEM). FKP1, FKP2 and FKP3 had higher glass transition temperature examined by thermogravimetry (TG). Fourier transform infrared spectroscopy (FTIR) revealed that the extracted keratin retained the most of protein backbone, with the breakage of disulfide cross-links and hydrogen bonds.