| Summary: | 碩士 === 國立嘉義大學 === 農藝學系研究所 === 99 === This study aimed to investigate (1) the best drying temperature and drying days and (2) the changes of the antioxidant abilities and antioxidant contents of sesame seeds under different treatments. By reducing the damages caused during the rainy seasons or typhoons, the benefits of the farmers were thus to be increased. These sesame seeds, TN1, were planted in the field as spring and fall crops in 2008. Five different drying temperatures, five different drying days and three different cutting treatments were conducted to investigate the agronomic characters, antioxidant abilities and antioxidant contents of sesame seeds after harvested. Results were summarized as follows:
As for the character of ratio of mature seeds no., ratio of mature seeds wt., and 1000 seeds wt., T3D10C1 (35℃, 10 drying days and non-cutting treatments) was found to be the best treatment.
Results of this study indicated, among five drying temperature treatments, temperature 35℃ had the best effect on DPPH• scavenging activity of the fall crops. Among different drying day treatments, day duration between 10~14 days had the best effect on the antioxidant ability (Both DPPH and ABTS scavenging activity) of the spring crops. The effect on antioxidant ability showed no significant difference among those three different cutting treatments of the spring and fall crops. As for the contents of antioxidant precursors, the treatment of D10 (10 drying days) gained higher sesamin and sesamolin contents.
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