Mass Spectrometer를 바탕으로 한 전자코를 이용한 식물성 유지가 혼합된 참기름의 판별 분석

손희진¹, 홍은정¹, 고상훈², 최진영³, 노봉수¹^,^*

Identification of Vegetable Oil-added Sesame Oil by a Mass Spectrometer-based Electronic Nose

Hee-Jin Son¹, Eun-Jeung Hong¹, Sanghoon Ko², Jin Young Choi³, Bong-Soo Noh¹^,^*

¹서울여자대학교 식품공학과

²세종대학교 식품공학과

³한북대학교 식품영양학과

¹Department of Food Science and Technology, Seoul Women's University

²Department of Food Science and Technology, Sejong University

³Department of Food and Nutritional Sciences, Hanbuk University

^*Corresponding author: Bong-Soo Noh, Department of Food Science and Technology, Seoul Women's University, 126 Kongleung 2-dong, Nowon-ku, Seoul 139-774, Korea, Tel: +82-2-970-5636 ; Fax: +82-2-970-5977, E-mail: bsnoh@swu.ac.kr

ⓒ Copyright 2009 Korean Society for Food Engineering. This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/4.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Received: Aug 31, 2009; Revised: Nov 10, 2009; Accepted: Nov 11, 2009

Published Online: Nov 30, 2009

Abatract

Sesame oils are partially mixed with other vegetable oils due to high price in a Korean market. To find out authentic sesame oil, a mass spectrometer-based electronic nose (MS-based E-nose) was used. Sesame oil (Se) was blended with soybean oil (So) or corn oil (Co) at the ratio (Se:So, Se:Co) of 97:3, 94:6, 91:9, 88:12 and 85:15, respectively. Intensities of each fragment from sesame oil by MS-based E-nose were completely different from those of soybean oil or corn oil. The obtained results were used for discriminant function analysis (DFA). Volatile organic components (VOC) of soybean oil or corn oil were similar to those of fresh air and DFA plot indicated a significant separation of pure sesame oil and pure other oil. The group of the mixed oil was seperated with that of sesame oil in DFA plot and the added amount of soybean oil to sesame oil was correlated with discriminant function first score (DF1). MS based E-nose system could be used as an efficient method to investigate the purity of sesame oil.

Keywords: sesame oil; soybean oil; corn germ oil; electronic nose; mass spectrometrer