Qualitative Analysis of Edible Oil Mixture for Omega-3 Content Using Thz Time-Domain Spectroscopy

23 Pages Posted: 25 Dec 2024

See all articles by Lan-Hee Yang

Lan-Hee Yang

affiliation not provided to SSRN

Inhee Maeng

Yonsei University

Sanggu Lee

affiliation not provided to SSRN

Kwangsung Kim

affiliation not provided to SSRN

Young Bin Ji

affiliation not provided to SSRN

Hyeon Sang Bark

affiliation not provided to SSRN

Hee Jun Shin

Pohang University of Science and Technology (POSTECH) - Pohang Accelerator Laboratory

Seung Jae Oh

affiliation not provided to SSRN

Abstract

The utility of terahertz time-domain spectroscopy (THz-TDS) for the qualitative and quantitative analysis of edible oils remains underexplored. Hence, this study aimed to characterize an edible oil mixture consisting of perilla, soybean, and corn oils using THz-TDS spectroscopy and compared the findings with those from Fourier transform infrared spectroscopy and proton nuclear magnetic resonance spectroscopy. THz-TDS was used to obtain complex optical constants such as power absorption and refractive index of oils in the range of 0.2–2.0 THz. Perilla oil mixtures were quantitatively analyzed using complex dielectric constants in the THz frequency region. We characterized the double bond structure of omega-3 in perilla oil using THz-TDS. Furthermore, we used reflection-mode THz-TDS imaging to demonstrate its application as a non-destructive authenticity test for bottled edible oil.

Keywords: Terahertz spectroscopy, perilla oil, omega-3, authenticity test

Suggested Citation

Yang, Lan-Hee and Maeng, Inhee and Lee, Sanggu and Kim, Kwangsung and Ji, Young Bin and Bark, Hyeon Sang and Shin, Hee Jun and Oh, Seung Jae, Qualitative Analysis of Edible Oil Mixture for Omega-3 Content Using Thz Time-Domain Spectroscopy. Available at SSRN: https://ssrn.com/abstract=5071625 or http://dx.doi.org/10.2139/ssrn.5071625

Lan-Hee Yang

affiliation not provided to SSRN ( email )

No Address Available

Inhee Maeng

Yonsei University ( email )

Seoul
Korea, Republic of (South Korea)

Sanggu Lee

affiliation not provided to SSRN ( email )

No Address Available

Kwangsung Kim

affiliation not provided to SSRN ( email )

No Address Available

Young Bin Ji

affiliation not provided to SSRN ( email )

No Address Available

Hyeon Sang Bark

affiliation not provided to SSRN ( email )

No Address Available

Hee Jun Shin

Pohang University of Science and Technology (POSTECH) - Pohang Accelerator Laboratory ( email )

77 Cheongam-ro
Pohang
Korea, Republic of (South Korea)

Seung Jae Oh (Contact Author)

affiliation not provided to SSRN ( email )

No Address Available

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