This study was carried out to investigate the changes in fatty acid composition and phytosterol content of the autumn sowing waxy corn during its ripening period for the production of high quality and value-added fresh ears. The content of crude oil in the waxy corn kernels steadily increased with days after pollination(DAP); the crude oil content in Heukjinjuchal (HC) was higher than that in Ilmichal (IC). The composition of fatty acids according to DAP showed a statistically significant change; palmitic and linoleic acid composition gradually decreased, but oleic acid increased, and the composition of unsaturated fatty acids in HC was higher than that in IC. The phytosterol content was increased until 33 DAP, and was 937.7 mg/100g and 867.9 mg/100g in IC and HC, respectively, but there was no statistically significant difference between the varieties. The phytosterol contents in IC varied in the following order: β-sitosterol > stigmasterol > campesterol, but that in HC varied in the order β-sitosterol > campesterol > stigmasterol. The campesterol content did not show significant differences between the varieties, but the stigmasterol and ß-sitosterol content was significantly higher in HC than in IC. Palmitic, linolieic, and linolenic acid were significantly correlated with campesterol and β-sitosterol, and stearic acid was positively correlated with stigmasterol. Oleic acid was positively correlated with campesterol and β-sitosterol but negatively correlated with stigmasterol. As a result, it was suggested that fatty acids may affect the variation in phytosterol contents during the ripening period in waxy corn.
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