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Raman Spectroscopy and 2DCOS Analysis of Unsaturated Fatty Acid in Edible Vegetable Oils

Title
Raman Spectroscopy and 2DCOS Analysis of Unsaturated Fatty Acid in Edible Vegetable Oils
Authors
Qiu, JinHou, Hua-YiHuyen, Nguyen ThiYang, In-SangChen, Xiang-Bai
Ewha Authors
양인상
SCOPUS Author ID
양인상scopus
Issue Date
2019
Journal Title
APPLIED SCIENCES-BASEL
ISSN
2076-3417JCR Link
Citation
APPLIED SCIENCES-BASEL vol. 9, no. 14
Keywords
unsaturated fatty acidedible vegetable oilRaman spectroscopyrelative intensity ratio2DCOS
Publisher
MDPI
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
Raman spectroscopy has been applied to study unsaturated fatty acid in edible vegetable oils. The relative intensity ratio of characteristic vibrational bands has been investigated as a function of the content of totally unsaturated fatty acid, polyunsaturated fatty acid, and monounsaturated fatty acid. The results suggest the intensity ratio of 1655 cm(-1) to 1440 cm(-1) or 1265 cm(-1) to 1300 cm(-1), i.e., a characteristic vibrational band correlated with carbon-carbon double bond in acid chain to a vibrational band not correlated with double bond, could be applied for preliminary analysis of the content of polyunsaturated fatty acid or monounsaturated fatty acid, but cannot be used to analyze the content of total unsaturated fatty acid. Additionally, two-dimensional correlation spectroscopy (2DCOS) has been performed on the content dependent Raman spectra. The 2DCOS result is consistent with that by Raman spectroscopy.
DOI
10.3390/app9142807
Appears in Collections:
자연과학대학 > 물리학전공 > Journal papers
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