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

作者：Karakaya A^*; Kenar A; Laleli Y; Takac S

来源：Waste and Biomass Valorization, 2017, 8(3): 829-837.

DOI：10.1007/s12649-016-9635-9

• Olive mill wastewater
• Grape pomace
• Phenolic compound
• Response surface methodology
• Solvent extraction

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.).

• 出版日期2017-4