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Component Analysis and Antioxidative Activity of Castanopsis cuspidata var. sieboldii Nut  

Lee, Seung-Je (Department of Food Science and Technology, and Functional Food Research Center, College of Agriculture and Life Science, Chonnam National University)
An, Ki-Wan (Division of Forest Resources and Landscape Architecture, College of Agriculture and Life Science, Chonnam National University)
Choi, Tae-Soo (Division of Forestry Income, Jeollanam Provincial Government)
Jung, Hyeong-Seok (Department of Hotel & Culinary Art, College of Cheongam)
Moon, Jea-Hak (Department of Food Science and Technology, and Functional Food Research Center, College of Agriculture and Life Science, Chonnam National University)
Park, Keun-Hyung (Department of Food Science and Technology, and Functional Food Research Center, College of Agriculture and Life Science, Chonnam National University)
Publication Information
Food Science and Preservation / v.17, no.1, 2010 , pp. 139-144 More about this Journal
Abstract
This study was carried out to investigate potential applications of the extract of Castanopsis cuspidata var. sieboldii $N_{AKAI}$ nut as a functional food ingredient. The pH and $^{\circ}Brix$ of nut were 6.43 and 3.17, respectively. L, a and b values as Hunter's color were 83.07, 1.49 and 10.48, respectively. Total content of monosaccharide was 54.26 mg% and organic acids were composed of oxalic acid 495.37 mg%, formic acid 200.03 mg%, malic acid 93.65 mg%, citric acid 27.80 mg%, and succinic acid 16.61 mg%. Total phenolic contents in various solvent extracts were as follows: water 27.69 mg%, 75% ethanol 16.50 mg%, ethyl acetate 16.50 mg%, and methanol 10.30 mg%. The antioxidant activity ($SC_{50},\;{\mu}g/mL$) of the nut extracts by various solvents was in the order of ethyl acetate 74.88 > methanol 155.00 > n-hexane 213.33 > ethanol 249.33 > butanol 274.78 > chloroform 314.67 > 75% ethanol 848.33 > water extracts 869.67. The results indicated that the extract of C. cuspidata nut contained a potential food ingredient.
Keywords
Castanopsis cuspidata; monosaccharide; organic acid; polyphenol; DPPH;
Citations & Related Records
Times Cited By KSCI : 11  (Citation Analysis)
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