The aim of this work is to evaluate utilization of sweet potato peel as a source of bioactive compounds. The effect of solvents (acetone and acetone/ethanol mixture) on the extraction efficiency of total carotenoids and phenolics from sweet potato tuber, flesh and peel, and antioxidant activity were investigated. Sweet potato peel extract stood out in terms of antioxidant activity and was chosen for encapsulation by spray and freeze-drying.

中文翻译：

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甘薯皮生物活性化合物在贮藏过程中的包封和降解动力学。

这项工作的目的是评估甘薯皮作为生物活性化合物来源的利用。研究了溶剂（丙酮和丙酮/乙醇混合物）对甘薯块茎、果肉和果皮中总类胡萝卜素和酚类物质的提取效率和抗氧化活性的影响。红薯皮提取物在抗氧化活性方面表现突出，并被选择通过喷雾和冷冻干燥进行封装。