|本期目录/Table of Contents|

[1]李欢欢,傅吉全. 热老化对柞蚕丝蛋白二级结构的影响[J].丝绸,2011,48(11):000008-11.
 LI Huan-huan,FU Ji-quan. Effects of heat aging on the secondary structure of tussah silk protein[J].Journal of Silk,2011,48(11):000008-11.
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《丝绸》[ISSN:1001-7003/CN:33-1122/TS]

卷:
48
期数:
2011年11期
页码:
000008-11
栏目:
研究与技术
出版日期:
2011-11-20

文章信息/Info

Title:
 Effects of heat aging on the secondary structure of tussah silk protein
文章编号:
1001-7003(2011 )11 -0008-04
作者:
 李欢欢傅吉全
 北京服装学院 材料科学与工程学院,北京 100029
Author(s):
 LI Huan-huan FU Ji-quan
School of Materials Science & Engineering, Beijing Institute of Fashion Technology, Beijing 10029, China
关键词:
 柞蚕丝热老化傅里叶红外光谱二级结构
Keywords:
 Tussah silk Heat aging Fourier transform infrared spectroscopy Secondary structure
分类号:
TS102.332
doi:
-
文献标志码:
A
摘要:
    利用ATR-FTIR光谱技术和红外光谱去卷积拟合计算蛋白质二级结构百分含量,研究热老化对柞蚕丝纤维二级结构的影响,并用XRD技术分析测定了老化后柞蚕丝的结晶度。结果表明:一定温度下,随着老化时间的延长,柞蚕丝β-sheet结构的相对百分含量下降,而α-helix结构和Random结构的相对百分含量上升;老化温度越高,柞蚕丝破坏的速度越快,β-sheet结构的相对百分含量下降得也越快,结晶度下降得也更加明显。
Abstract:
 With the technology of ATR-FTIR spectroscopy and the approaches of Fourier self-deconvolution fitting to calculate quantitatively the percentage of the secondary structure of protein, the effects of heat aging on the secondary structure of tussah silk protein was investigated in this paper, combined with the analysis of the crystallinity of tussah silk by X-ray diffraction. The results showed that: under certain temperature, the β-sheet structure of silk percentage content will decrease, while the percentage content of α-helix structure and Random structure will increase, with the prolonged aging; the higher of temperature, the faster of decrease of β-sheet structure percentage content, and the more obvious decline in crystallinity will occur.

参考文献/References:

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备注/Memo

备注/Memo:
 收稿日期:2011 -07-10;
修回日期:2011 -09-28
基金项目:北京市教育委员会资金支持项目(KM20080012003)
作者简介:李欢欢(1987- ),女,硕士研究生,研究方向为丝织品老化机理。通讯作者:傅吉全,教授,fujq010@sina.com。
更新日期/Last Update: 2012-03-28