Volume 44, Issue 3 e14367
ORIGINAL ARTICLE

Supercritical fluid tomato extract for stabilization of perilla oil subjected to thermal treatment

Kyo-Yeon Lee

Kyo-Yeon Lee

Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju, South Korea

Search for more papers by this author
M. Shafiur Rahman

M. Shafiur Rahman

Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju, South Korea

Department of Food Engineering and Technology, State University of Bangladesh, Dhaka, Bangladesh

Search for more papers by this author
Ah-Na Kim

Ah-Na Kim

Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju, South Korea

Search for more papers by this author
Khalid Gul

Khalid Gul

Department of Food Science and Technology (Institute of Agriculture and Life Sciences), Gyeongsang National University, Jinju, South Korea

Search for more papers by this author
Myoung-Hee Lee

Myoung-Hee Lee

Department of Southern Area Crop Science, NICS, RDA, Miryang, Korea

Search for more papers by this author
Jung In Kim

Jung In Kim

Department of Southern Area Crop Science, NICS, RDA, Miryang, Korea

Search for more papers by this author
Tae Joung Ha

Tae Joung Ha

Department of Southern Area Crop Science, NICS, RDA, Miryang, Korea

Search for more papers by this author
Doyeon Kwak

Doyeon Kwak

Department of Southern Area Crop Science, NICS, RDA, Miryang, Korea

Search for more papers by this author
Eui-Cheol Shin

Eui-Cheol Shin

Department of Food Science, Gyeongnam National University of Science and Technology, Jinju, Korea

Search for more papers by this author
Hyun-Jin Kim

Hyun-Jin Kim

Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju, South Korea

Department of Food Science and Technology (Institute of Agriculture and Life Sciences), Gyeongsang National University, Jinju, South Korea

Search for more papers by this author
William L. Kerr

William L. Kerr

Department of Food Science and Technology, University of Georgia, Athens, GA, USA

Search for more papers by this author
Sung-Gil Choi

Corresponding Author

Sung-Gil Choi

Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju, South Korea

Department of Food Science and Technology (Institute of Agriculture and Life Sciences), Gyeongsang National University, Jinju, South Korea

Correspondence

Sung-Gil Choi, Division of Applied Life Science (BK21 Plus), Gyeongsang National University, Jinju 52828, South Korea.

Email: [email protected]

Search for more papers by this author
First published: 30 December 2019
Citations: 5

Abstract

There has been increasing concern over the potential carcinogenic problem of the synthetic antioxidants in oil industries. Tomato extract was prepared by supercritical-CO2, which may be a natural antioxidant. The supercritical fluid tomato extract (SFTE) was added in perilla oil (PO) and investigated the oxidative stability of PO and compared with control and those of the PO containing α-tocopherol as a positive control. SFTE had a high content of lycopene (64.91%) and β-carotene (34.93%), which led to significantly higher antioxidant capacity than that of the α-tocopherol. During the thermal treatment at 65°C for 24 hr, the PO containing SFTE at various concentrations (100, 300, 500, and 1,000 µg/ml) showed significantly lower acid value and peroxide value, and at least 1.5 times higher induction period than those of the control and α-tocopherol-added PO at the same concentrations. The results suggest that SFTE may be an attractive natural antioxidant in oil industries.

Practical Applications

Oxidation is a major problem causing the quality deterioration of edible oils which are rich in unsaturated fatty acids. Generally, chemically synthesized antioxidants are widely added to vegetable oils for retarding oxidative deterioration. But, these antioxidants are potentially carcinogenic to human health. SFTE produced in this study can be attractive alternative natural antioxidant over widely used α-tocopherol and chemically synthesized antioxidants for preventing the lipid oxidation in food industries.

CONFLICT OF INTEREST

The authors have declared no conflicts of interest for this article.

The full text of this article hosted at iucr.org is unavailable due to technical difficulties.