Study on the Determination Methods of Free Fatty Acids in Leather
The content of free fatty acids was researched by qualitative and quantitative methods. The cable-extraction method was used to test six different types of leather sample in which the dichloromethane was as extraction agent. After the extraction was methylesterified, it was extracted again by petroleum ether. Then the color and titration method were used to quantitatively analyze the extraction. Meantime, the effect of different decolorization ways on the quantitative analysis was studied. The properties of extraction products were characterized by GC-MS instrument. The results showed that the main components of free fatty acids in leather were oleic acid, palmitic acid, stearic acid and a few linoleic acids. If the w (ethanol) was 80％ to 85％ of the solution was as depigmenting agent, the effect would be better.
leather products free fatty acid content determination method
LUO Xiaomin XIE Xing LI Pengni
Shaanxi University of Science & Technology, Xi’an, Shaanxi 710021, P.R.China
国际会议
The 12th International Wool Research Conference(第十二届国际羊毛会议12th IWRC)
上海
英文
588-592
2010-10-19（万方平台首次上网日期，不代表论文的发表时间）