Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Comparison of the content of bioactive substances and antioxidative activity between conventionally and organically cultivated brown rice (Oryza sativa L.)

관행 및 유기재배 현미의 생리활성 성분의 함량 및 항산화활성 비교

  • Kim, Gee An (Department of Food Science and Technology, and BK21 Plus Program, Chonnam National University) ;
  • Cho, Jeong-Yong (Department of Food Science and Technology, and BK21 Plus Program, Chonnam National University) ;
  • Lee, You Seok (Jeonnam Agricultural Research and Extension Services) ;
  • Lee, Hyoung Jae (Department of Food Science and Technology, and BK21 Plus Program, Chonnam National University) ;
  • Jeong, Hang Yeon (Department of Food Science and Technology, and BK21 Plus Program, Chonnam National University) ;
  • Lee, Yu Geon (Department of Food Science and Technology, and BK21 Plus Program, Chonnam National University) ;
  • Moon, Jae-Hak (Department of Food Science and Technology, and BK21 Plus Program, Chonnam National University)
  • 김기안 (전남대학교 식품공학과 및 BK21 플러스 프로그램) ;
  • 조정용 (전남대학교 식품공학과 및 BK21 플러스 프로그램) ;
  • 이유석 (전라남도 농업기술원) ;
  • 이형재 (전남대학교 식품공학과 및 BK21 플러스 프로그램) ;
  • 정항연 (전남대학교 식품공학과 및 BK21 플러스 프로그램) ;
  • 이유건 (전남대학교 식품공학과 및 BK21 플러스 프로그램) ;
  • 문제학 (전남대학교 식품공학과 및 BK21 플러스 프로그램)
  • Received : 2016.12.26
  • Accepted : 2017.04.26
  • Published : 2017.06.30
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Abstract

The content of bioactive substances and antioxidative activity in conventionally grown brown rice (CGBR) and organically grown brown rice (OGBR) were compared. Minerals (mg/100 g) such as magnesium (OGBR, $168.59{\pm}2.62$; CGBR, $121.43{\pm}2.22$), copper (OGBR, $0.50{\pm}0.06$; CGBR, $0.41{\pm}0.05$), and manganese (OGBR, $4.70{\pm}0.04$; CGBR, $2.49{\pm}0.02$) were higher in OGBR than in CGBR (p<0.05). In addition, levels of (${\mu}g/100g$) vitamins B2 (OGBR, $27.22{\pm}2.56$; CGBR, $22.12{\pm}2.24$) and B6 (OGBR, $46.32{\pm}2.66$; CGBR, $39.91{\pm}3.32$) were higher in OGBR than in CGBR (p<0.05). The contents (mg/100 g) of ${\beta}$-sitosterol (OGBR, $27.40{\pm}2.79$; CGBR, $24.75{\pm}1.06$), total phenolic (OGBR, $6.72{\pm}0.02$; CGBR, $6.64{\pm}0.02$), and ferulic acid (OGBR, $1.75{\pm}0.45$; CGBR, $1.11{\pm}0.14$) as well as the antioxidative activity (OGBR, $53.09{\pm}1.90%$; CGBR, $48.29{\pm}3.38%$) evaluated using 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical-scavenging assay were higher in OGBR than in CGBR, although no significant differences between samples were observed. In comparison to the control group, brown rice samples significantly inhibited cholesteryl ester hydroperoxide formation in rat plasma subjected to copper ion-induced lipid peroxidation. The inhibitory effect of OGBR was higher than that of CGBR. These results indicate that OGBR showed higher levels of bioactive substances and enhanced antioxidative activity than CGBR, although the differences were not statistically significant.

Keywords

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