Foam fractionation for effective recovery of leaf protein from alfalfa (Medicago sativa L.) |
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Authors: | Zhaoliang Wu Ting Shu Mengwei Zhang |
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Affiliation: | School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, China |
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Abstract: | ABSTRACTFoam fractionation for recovering leaf protein from alfalfa (Medicago sativa L.) has been investigated. The extraction yield of alfalfa leaf protein (ALP) from the dried alfalfa leaves reached 71.90% under the extraction conditions of pH 8.0, temperature 70°C, and extracting time 40 min. For strengthening foam drainage at room temperature, a novel foam fractionation column with a cross-internal component covered superhydrophobic coating was developed. By using the extraction liquor as the feeding solution, a two-stage foam fractionation had been performed. Under the suitable operation conditions, the enrichment ratio and the recovery percentage of ALP were 4.33 and 89.0%, respectively. |
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Keywords: | Alfalfa leaf protein foam fractionation foam drainage surface modification superhydrophobic coating |
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