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Analysis of the Cytotoxicity of Green Pigment Produced on the Surface of Roasted and Retorted Chestnuts Using Immune Cells and Gastrointestinal Cancer Cells

  • Jung, Ha-Na (Department of Food and Nutrition, and Research Institute of Human Ecology, Seoul National University) ;
  • Jeong, Ji-Hyun (Department of Food and Nutrition, and Research Institute of Human Ecology, Seoul National University) ;
  • Cheon, Hee-Soon (Department of Food and Nutrition, and Research Institute of Human Ecology, Seoul National University) ;
  • Choi, Jun-Bong (CJ Cheiljedang Corporation) ;
  • Cho, Hyunn-Ho (Department of Food and Nutrition, and Research Institute of Human Ecology, Seoul National University) ;
  • Jhin, Chang-Ho (Department of Food and Nutrition, and Research Institute of Human Ecology, Seoul National University) ;
  • Hwang, Keum-Taek (Department of Food and Nutrition, and Research Institute of Human Ecology, Seoul National University)
  • Received : 2011.08.01
  • Accepted : 2011.09.02
  • Published : 2011.09.30

Abstract

Roasted and retorted (RR) chestnuts develop green pigment spots on their surface during storage. The purpose of this study was to evaluate the cytotoxicity of the green pigment using RAW 264.7, MOLT-4, KATOIII and HT-29 cells. The pigment scraped from RR chestnuts (GP), whole RR chestnuts with green pigment spots (GC), whole RR chestnuts without green pigment (WC) and roasted and frozen stored chestnuts (FC) were extracted in 10% DMSO. MOLT-4 cells were less resistant to the cytotoxicity of the chestnut extracts than the RAW 264.7 cells. The GP extracts did not show different responses against $H_2O_2$-induced oxidative stress and LPS-induced NO production compared to the other extracts. The chestnut extracts did not have proliferative activity on either of the KATOIII or HT-29 cells (p>0.05). Our results from the comparison of the green pigment produced on the surface of the RR chestnuts to chestnuts that do not develop the green pigment suggest that the pigment may not be harmful in terms of either cytotoxicity towards immune cells or proliferation of gastrointestinal cancer cells.

Acknowledgement

Supported by : CJ Cheiljedang Corporation

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