摘要
山羊绒夹杂的肤皮屑会严重影响纺织品质量。采用胃蛋白酶法和还原法从山羊绒肤皮中提取了胶原蛋白和角蛋白,并对其进行表征。结果表明：洗净绒中肤皮屑组成及其质量分数为水分9.14%,脂肪8.72%,水溶物11.36%,粗蛋白60.13%,灰分10.65%,粗蛋白中胶原蛋白和角蛋白分别占蛋白质质量分数的30.98%和15.67%,是蛋白质的主要组成,其他蛋白种类有待于进一步研究。肤皮屑中胶原蛋白相对分子质量集中在49 ku,角蛋白分子质量在26~35 ku和49 ku区域。各组分在肤皮屑结构中分布情况不同,脂肪和胶原蛋白分布不均匀,角蛋白呈较均匀分布,水溶物对肤皮片状粘接起主要作用。研究结果为解决山羊绒染色肤皮点提供了理论参考。
Skin dander included in the cashmere seriously affected the quality of textiles. Pepsin method and restore method were used to extract collagen and keratin from cashmere skin dander, and its characterization was conducted. The results show that cashmere skin dander contains 9.14% of moisture, 8.72% of fat, 11.36% of soluble solids, 60.13% of crude protein and 10.65% of ash, collagen and keratin protein account for 30.98% and 15.67% of the total protein, respectively, which are the major components of protein, the remaining proteins are needed to be further studied. Molecular weight of collagen from skin dander is concentrated at 49 ku, while the molecular weight of keratin distributes mainly in the range of 26 to 35 ku and 49 ku. The distributions of components among skin dander is different, fat and collagen distribute unevenly, while keratin shows a more uniform distribution, and water soluble solids play a major role on skin bonding between flaky skin danders. The findings provide a theoretical basis for addressing dark skin point among cashmere dyeing.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2015年第6期24-29,共6页
Journal of Textile Research
