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2013•Advanced materials researchOpen access

Recovery of Sweet Potato Protein Materials from the Starch Waste

Li Xia Hou, Yang Bo Wang, Shu Chang Zhao, Jun Ming Ji, Xiao Lei Shang

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Abstract

Recovery of sweet potato protein materials from the starch waste was studied in the paper. Ultrafiltration followed with alkaline extraction and acid precipitation by adjusting pH through lactic fermentation, had the highest extraction rate (40.81%). While ultrafiltration followed with alkaline extraction and acid precipitation by adjusting pH with HCl yielded the protein material with the highest protein content (73.68 %), these two procedures provide good alternatives for different purpose.

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What this paper is about

Recovery of sweet potato protein materials from the starch waste was studied in the paper. Ultrafiltration followed with alkaline extraction and acid precipitation by adjusting pH through lactic fermentation, had the highest extraction rate (40.81%). While ultrafiltration followed with alkaline extraction and acid precipitation by adjusting pH with HCl yielded the protein material with the highest protein content (73.68 %), these two procedures provide good alternatives for different purpose.

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Available abstract

Recovery of sweet potato protein materials from the starch waste was studied in the paper. Ultrafiltration followed with alkaline extraction and acid precipitation by adjusting pH through lactic fermentation, had the highest extraction rate (40.81%). While ultrafiltration followed with alkaline extraction and acid precipitation by adjusting pH with HCl yielded the protein material with the highest protein content (73.68 %), these two procedures provide good alternatives for different purpose.

Key concepts: Ultrafiltration (renal), Extraction (chemistry), Starch, Lactic acid, Chemistry, Fermentation, Precipitation, Chromatography

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