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Quality Characteristics of Rapeseed Oils according to Different Roasting Temperatures

볶음온도에 따른 유채유의 품질특성

  • Da-Hee An (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Gyeong-Dan Yu (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Kwang-Soo Kim (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Young-Lok Cha (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Jae-Hee Jeong (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Ji-Bong Choi (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Koan Sik Woo (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • Eom-ji Hwang (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration) ;
  • You-Jin Park (Bioenergy Crop Research Institute, National Institute of Crop Science, Rural Development Administration)
  • 안다희 (농촌진흥청 국립식량과학원 바이오에너지작물연구소 ) ;
  • 유경단 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 김광수 (농촌진흥청 국립식량과학원 바이오에너지작물연구소 ) ;
  • 차영록 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 정재희 (농촌진흥청 국립식량과학원 바이오에너지작물연구소 ) ;
  • 최지봉 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 우관식 (농촌진흥청 국립식량과학원 바이오에너지작물연구소 ) ;
  • 황엄지 (농촌진흥청 국립식량과학원 바이오에너지작물연구소) ;
  • 박유진 (농촌진흥청 국립식량과학원 바이오에너지작물연구소)
  • Received : 2023.10.04
  • Accepted : 2023.11.10
  • Published : 2023.12.31

Abstract

In this study, quality properties of rapeseed oil by different roasting temperatures (140, 160, 180, and 200℃) were investigated. Roasted-pressed oil (RPO) showed a decrease in lightness and an increase in redness and yellowness with an increase in temperature compared to cold-pressed oil (CPO). In addition, the β-carotene and tocopherol content also increased in RPO as the roasting temperature increased. The tocopherol content increased by 18~20% in RPO at 200℃ compared to CPO. This increase in bioactive components led to improved radical scavenging activity dependent on roasting temperature, and RPO at 200℃ showed a 2.7-fold improvement compared to CPO. Finally, it was observed that higher roasting temperatures resulted in an extended oxidation induction period, increasing by up to 3.3 times. In conclusion, roasting is an effective method for enhancing the oil functionality of domestic rapeseed varieties. This study provides basic data for producing high-quality oil.

Keywords

Acknowledgement

본 연구는 농촌진흥청 작물시험연구사업(과제번호: PJ016815022023)의 지원에 의해 수행되었다.

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