In Situ Raman Spectrometric Analysis of Crystallinity and Crystal Polymorphism of Fat in Porcine Adipose Tissue
详细信息 查看全文
- 作者：Michiyo Motoyama ; Koichi Chikuni ; Takumi Narita ; Katsuhiro Aikawa ; Keisuke Sasaki
- 刊名：Journal of Agricultural and Food Chemistry
- 出版年：2013
- 出版时间：January 9, 2013
- 年：2013
- 卷：61
- 期：1
- 页码：69-75
- 全文大小：385K
- 年卷期：v.61,no.1(January 9, 2013)
- ISSN：1520-5118
文摘
From the adipose tissues of pork carcasses stored in a refrigerator, Raman spectra were observed in situ by a portable Raman spectrometer. The observed Raman spectra, which were almost completely due to fat, showed clear dependence on the refrigeration time and carcass temperature. This dependence reflected an increase in the crystallinity of the fat and a change in the fraction of the 尾鈥?polymorph. Evidence of changes in the packing order of the aliphatic chains of acylglycerol molecules was obtained, and the changes lasted for a long time after the temperature reached the lowest point (4.3 掳C). Possibilities of using Raman spectrometry as a tool for routine monitoring of the conditions of carcasses as well as for research on the improvement of the mechanical strength of the adipose tissue are discussed.