Evaluation of Drying Methods on Antioxidant Activity, Total Phenolic and Total Carotenoid Contents of Sweet Potato (Ipomoea batatas (L.) Lam.) var. Tainong73

in Foreign journals(other), 國外期刊(其他)
標題Evaluation of Drying Methods on Antioxidant Activity, Total Phenolic and Total Carotenoid Contents of Sweet Potato (Ipomoea batatas (L.) Lam.) var. Tainong73
出版類型國外期刊(其他)
出版年度2008
AuthorsPao-Chuan Hsieh, 謝寶全, Albert Linton Charles 邱亞伯, & Albert Linton Charles 賴博永
開始頁73
頁數13
出版日期2008 / 9
其他編號0000
中文摘要

This study analyzed the evaluation of the antioxidant activity (AOA), total phenolics, total flavonoids, and total carotenoids of sweet potato (Ipomoea batatas Lam.) var. Tainong 73 during the drying process. Flesh and skin samples were submitted to sun-drying, low-temperature drying (LTD) at 25°C, hot air drying (HAD) at 50°C, or HAD at 75oC, and extracted with ethanol. Then, AOA was assessed by 2,2-diphenyl-1-picrylhydradzyl (DPPH); anti-oxidative potency in linoleic acid system model (AOP), and 2,2’-Azino-di-[3-ethylbenzothiazoline-6-sulfonate] (ABTS) assays. Skin samples showed, on average, higher AOA than the flesh. The AOA and composition were higher in samples submitted to HAD at 50 or 75oC for four or one day than at lower temperatures for longer times. Stronger correlation was observed between the AOA and phenolics than carotenoids content, suggesting that phenolics are the major contributors to AOA of sweet potato var. Tainong 73.

期刊名稱J. International Cooperation
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