Total phenolics, flavonoids and antioxidant activities of peanut（Arachis hypogaea L.）seed as affected by organic different cultivation practices

• Main Authors: Ling-Hui Chiu, 邱齡慧
• Other Authors: Chin-Jin Hou
• Format: Others
• Language: zh-TW
• Online Access: http://ndltd.ncl.edu.tw/handle/50804679466012797123

碩士 === 國立嘉義大學 === 農藝學系研究所 === 102 === Peanut seeds have effect of antioxidant capacity, DPPH free radicals scavenging effect and health.Explore field experiments of peanuts Tainan No.11 and Tainan No.14 were conducted in an organic field in Yizhu, Chiayi County in 2010. Total phenolics, flavonoids content and antioxidant activities of peanut seed as affected by fertilizer management, weed management and harvest management. Organic farming fertilizer management, different fertilization treatments [ Low application rate (1500 kg / ha), middle application rate (3000 kg / ha), high application rate (4500 kg / ha) ] and different of application processing [ all application (3000 kg / ha) of all basal fertilizer, split application 2/3 of the basal (2000 kg / ha) and 1/3 of the dressing (1000 kg / ha) ], the results are as follows: (1)Effects on antioxidant activities of peanut seeds of different fertilization treatments, the spring crop, the total antioxidant activity in conventional cultivation highest, DPPH free radical scavenging effect and reducing power handling begin with a low application rate higher, Total phenolics content of the fertilizer deal higher; the fall crop, DPPH free radical scavenging effect with high fertilization treatments higher, reducing power, flavonoids content and Total phenolics content in fertilizer tailor treatment is higher. Varieties the total antioxidant activity in Tainan No.11 is greater in spring crop, DPPH free radical scavenging effect and ferrous ion chelating capacity in Tainan No.14 is greater; the fall crop was no significant difference. (2)Effects on antioxidant activities of peanut seeds of different modes of administration handling, the spring crop, the total antioxidant activity of the highest in the Split application, DPPH free radical scavenging effect, reducing power and Total phenolics contents begin with the control group was the highest; the fall crop was no significant difference. Regardless the spring crop or the fall crop were no significant difference in varieties. Weed management of organic cultivation techniques, cultivating, processing(one, two and non-cultivator), mulching(rice straw, rice husk, peanut shells and no mulching)and inter-planting green manure treatment(soybean, sun hemp sesbania and no planting green manure ), the results are as follows: (1)The number of different treatments on peanut seeds of antioxidant activity, the spring crop, the two varieties of peanut seeds antioxidant capacity than conventional cultivation of good. No difference when the fall crop. However, the antioxidant capacity of peanut seeds for the spring than the fall of excellent. (2)Different crop mulching effect on antioxidant activity of peanut, , the spring crop, TN 11 peanut seeds antioxidant capacity than conventional cultivation of good, TN 14 and flavonoids content of mulching than conventional cultivation. No difference when the fall crop. differences varieties between no significant. Whole words, when the spring crop mulching rice husks and peanut shells is better. (3) Different Inter-planting green manure crops effects on antioxidant activity of peanut seeds. Whether during the spring or fall crop or variety as no significant. Peanut seeds of the first flower after harvest 50days, 60days, 70days, 80days and cultivation management style(pest management, no pest management and conventional cultivation)the harvest of peanut seeds, carried antioxidant capacity the results are as follows: (1)Different harvest on antioxidant activity of peanut seeds effect. the spring crop, the overall, organic cultivation and management of the two varieties of peanut seeds antioxidant capacity than conventional cultivation are highest 50 days after flowering, gradually reduced. No difference when the fall crop. No significant differences between varieties. Overall, organic cultivation, pest management h than conventional cultivation of excellent.