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标题：ASSESSMENT OF DATE SYRUP DETOXIFICATION AS A FERMENTATION SUBSTRATE BY REMOVING POLYPHENOLS WITH ACTIVATED CHAR COAL
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作者：Salah Mohammed Aleid ; Jamal Saleh Haddadin ; Zhen-Xing Tang 等
期刊名称：Fresenius Environmental Bulletin
印刷版ISSN：1018-4619
出版年度：2021
卷号：30
期号：4
页码：3589-3593
语种：English
出版社：PSP Publishing
摘要：Due to observed Polyphenols (PP) inhibition for Pristinamycin producing microorganism Strepto-myces pristinaespiralis.An optimization pre-treatment for date syrup (DS) detoxification,before its use as a fermentation media,by means of adsorptive removal of PP by activated charcoal (ACC) was evaluated.A total PP content of 2043.83 mg/100g gallic acid equivalent (GAE) in the concentrated thick Khalas DS was obtained.Such high concentration of PP compared to whole date fruits was due to high temperature involved in the process of DS extraction coupled with vacuum evaporation for excess water,which initiated the enrichment for PP in the DS.The performance of the ACC in removing PP from DS was evaluated in batch experiments.The low removal of PP by 1% ACC encouraged the use of 3% and 5%.Precisely,using 5% ACC with a contact time for 1 hour significantly reduced the PP to 483.12 as mg GAE /100g,achieving removal rate of 76.36%.The maximum of PP adsorption capacities obtained at 5 % ACC was found to be 30°C compared with higher temperatures.
关键词：Detoxification;Date Syrup;Polyphenols;Char Coal