A Novel Two-Step Process to Co-valorize Antioxidant Rich By-products of Olive and Grape Processing Industries

被引:0
作者
A. Karakaya
A. Kenar
Y. Laleli
S. Takaç
机构
[1] Ankara University,Biotechnology Institute
[2] Ankara University,Department of Chemistry, Faculty of Science
[3] Düzen Laboratories,Department of Chemical Engineering, Faculty of Engineering
[4] Ankara University,undefined
来源
Waste and Biomass Valorization | 2017年 / 8卷
关键词
Olive mill wastewater; Grape pomace; Phenolic compound; Response surface methodology; Solvent extraction;
D O I
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中图分类号
学科分类号
摘要
An integrated process for collective recovery of phenolic compounds from olive mill wastewater (OMW) and grape pomace (GP), which would also benefit easier biodegradation of OMW in a further process, was developed. Response surface methodology was employed to optimize the process parameters. Treatment of GP with OMW resulted in the transfer of 64.41 % of total polyphenols contained in OMW to GP under the optimal conditions predicted by the model. In the following step, extraction of phenolic compounds in treated-GP with ethyl alcohol:water under the optimum conditions predicted by the model was performed and 11.97 mg g−1 phenolics was recovered. The total antioxidant activity of the recovered phenolics was 81 % (inh.).
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页码:829 / 837
页数:8
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