Comparison of the Content of Bioactive Substances and the Inhibitory Effects against Rat Plasma Oxidation of Conventional and Organic Hot Peppers (Cap

[Tae-Ho Han]

Comparison of the Content of Bioactive Substances and the Inhibitory Effects against Rat Plasma Oxidation of Conventional and Organic Hot Peppers (Capsicum annuum L.)

2010 12 15 문제학교수님jf1028448.pdf

The aim of this study was to eval‎uate the chemical compositions and antioxidative activities of hot
pepper fruits cultivated with strict management by organic and conventional agricultural practices.
The ascorbic acid content in the organically grown hot pepper (OGP) was significantly higher than
that of conventionally grown hot pepper (CGP) in both green and red fruits. The content of other
bioactive compounds such as flavonoids (apigenin, luteolin, quercetin) and total phenolics in OGP
was typically higher than in CGP regardless of fruit color. In addition, the ABTS
þ
radical-scavenging
activity of OGP red fruits was significantly higher than that of CGP red fruits. Moreover, regardless
of the color of the fruits, a higher antioxidative activity was observed in blood plasma from rats
administered the OGP fruit extracts than in blood plasma from rats administered the CGP fruit
extracts. It was hypothesized that the higher antioxidant activity of the OGP fruits may have resulted
from the higher antioxidant content in the OGP fruits. These results suggest that consumption of
pepper fruits may increase antioxidant activity in the blood, and OGP fruits may be more effective in
increasing this antioxidant activity than CGP fruits.

KEYWORDS: Capsicum annuum; hot pepper; organic agricultural products; bioactive compounds;
antioxidant activity

GWI DEOK KIM,†,[ YOU SEOK LEE,‡ JEONG-YONG CHO,† YOUNG HAN LEE,# KYEONG JU CHOI,‡ YOUN LEE,§ TAE-HO HAN,^ SANG-HYUN LEE,X KEUN-HYUNG PARK,† AND JAE-HAK MOON*,†

†Department of Food Science and Technology and Funcitional Food Research Center, Chonnam National
University, Gwangju 500-757, Korea, ‡Jeonnam Agricultural Research and Extension Services, Naju 520-
715, Korea, #Gyeongnam Agricultural Research and Extension Services, Jinju 660-370, Korea, §Rural
Development Administration, Organic Agricultural Division, Suwon 441-707, Korea, ^Department of
Horticulture and Institute of Agricultural Science and Technology, Chonnam National University,
Gwangju 500-757, Korea, and XKorea Pear Research Organization, Chonnam National University,
Gwangju 500-757, Korea. [ Present address: R&D Center, Bohea Brewery Co., Ltd.,
71-1 Poongdukcheon-Dong, Suji-Gu, Yongin-City, Kyunggi 449-171, Korea.