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The 2012 ASHS Annual Conference

10085:
Antioxidant Activity and Whitening Effect of Various Tomato Plant Parts

Tuesday, July 31, 2012
Grand Ballroom
Bong-yun Oh, Food and Farm Management Research Institute, Jellanamdo Agricultural Research and Extension Services, Naju, South Korea
Hee-chul Hong, Research & Development, Jeonnam Biofood Technology Center Jeonnam Bioindustry Foundation, Jeonnam, South Korea
Mi-Ae Bang, Research & development, Jeonnam Biofood Technology Center Jeonnam Bioindustry Foundation, Jeonnam, South Korea
You-Seok Lee, Food and Farm Management Research Institute, Jellanamdo Agricultural Research and Extension Services, Naju, South Korea
Seung-Hee Nam, Food and Farm Management Research Institute, Jellanamdo Agricultural Research and Extension Services, Naju, South Korea
Jeong-Hwa Kang, Food and Farm Management Research Institute, Jellanamdo Agricultural Research and Extension Services, Naju, South Korea
Dong-Sub Kim, Seoul National University, Seoul 151-742, Korea
Hae-Young Na, Seoul National University, Seoul 151-742, Korea
Changhoo Chun, Seoul National Univ, Seoul 151-742, South Korea
Jong-Bun Seo, Food and Farm Management Research Institute, Jellanamdo Agricultural Research and Extension Services, Naju, South Korea
Kyung-Ju Jung, Food and Farm Management Research Institute, Jellanamdo Agricultural Research and Extension Services, Naju, South Korea
Kyeong-Ju Choi, Food and Farm Management Research Institute, Jellanamdo Agricultural Research and Extension Services, Naju, South Korea
Tomato is one of annual plant and cultivated mostly in greenhouse. Most of tomato plant has been discarded as a waste after fruit harvesting although tomato plants, not fruit have many physiological functions like antioxidant activity and whitening effects. Therefore, in this study, various parts of tomato plants (leave, stem, root, or fruit) were evaluated their antioxidant and whitening effect for cosmetic purpose. Tomato samples were freeze-dried, extracted with 80% methanol. Antioxidant activities of tomato plants were determined by DPPH radical scavenging and ABTS radical scavenging. Whitening effect of tomato samples were studied by tyrosinase inhibition or melanin synthesis extent on B16 melanoma cell line. Tomato leave extract showed the strongest antioxidant activity with 31% DPPH scavenging, 88.7% ABTS scavenging among samples. For whitening effect of tomato extracts, leave  extracts showed a 1.5–2 times higher tyrosinase inhibition than those of stem or fruit. Leave and root extracts showed above 70% inhibition of melanin synthesis on B16 melanoma cell. In conclusion, tomato leaves showed the highest antioxidant activity and whitening effect among samples. Therefore, these results indicated that tomato leave could be applicable for functional cosmetic material in industry field instead of throwing away.
See more of: Organic Horticulture 1 (Poster)
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