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Green extraction of soluble dietary fibre from coffee silverskin: impact of ultrasound/microwave‐assisted extraction
International Journal of Food Science & Technology ( IF 2.6 ) Pub Date : 2020-01-21 , DOI: 10.1111/ijfs.14477 Le Wen 1, 2 , Zhihang Zhang 1 , Ming Zhao 1 , Ramsankar Senthamaraikannan 3 , Ramesh Babu Padamati 3 , Da‐Wen Sun 2 , Brijesh K. Tiwari 1
International Journal of Food Science & Technology ( IF 2.6 ) Pub Date : 2020-01-21 , DOI: 10.1111/ijfs.14477 Le Wen 1, 2 , Zhihang Zhang 1 , Ming Zhao 1 , Ramsankar Senthamaraikannan 3 , Ramesh Babu Padamati 3 , Da‐Wen Sun 2 , Brijesh K. Tiwari 1
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Coffee silverskin (CSS), a potential source of soluble dietary fibre (8%–11%), is a major coffee by‐product obtained during the coffee roasting process. Ultrasound‐assisted extraction (UAE) and microwave‐assisted extraction (MAE) have been considered as efficient and economic novel extraction techniques. In this study, UAE, MAE and simultaneous ultrasound–microwave‐assisted extraction (UMAE) techniques were investigated for soluble dietary fibre (SDF) extraction from CSS and compared with conventional solvent extraction (CSE). The highest recovery rate of SDF was accomplished by UMAE (42.7 ± 0.4%), which was 1.5‐fold, 1.9‐fold and 1.2‐fold of the recovery rates achieved by CSE, UAE and MAE, respectively. The extraction time of UMAE was 20 min, which was the same as UAE and MAE, and 4.5‐fold less than CSE. It implied that the combination of UAE and MAE could enhance the extraction process by increasing the recovery rate as well as by reducing extraction time as compared with CSE or other individual novel extraction methods applied. Nutritional composition and physicochemical characteristics of the SDF extracts from CSS were also investigated in the study.
中文翻译：
从咖啡银皮中绿色提取可溶性膳食纤维：超声/微波辅助提取的影响
咖啡银皮（CSS）是可溶性膳食纤维（8％–11％）的潜在来源，是咖啡烘焙过程中获得的主要咖啡副产品。超声波辅助萃取（UAE）和微波辅助萃取（MAE）被认为是高效且经济的新型萃取技术。在这项研究中，研究了从阿拉伯联合酋长国，MAE和同时进行的超声-微波辅助提取（UMAE）技术中提取CSS中的可溶性膳食纤维（SDF），并将其与常规溶剂提取（CSE）进行了比较。UMAE达到了SDF的最高回收率（42.7±0.4％），分别是CSE，UAE和MAE的回收率的1.5倍，1.9倍和1.2倍。UMAE的提取时间为20分钟，与UAE和MAE相同，比CSE缩短4.5倍。这表明与CSE或其他单独应用的新型提取方法相比，UAE和MAE的组合可通过提高回收率以及减少提取时间来增强提取过程。研究中还研究了CSS中SDF提取物的营养成分和理化特性。
更新日期：2020-01-21
中文翻译：
从咖啡银皮中绿色提取可溶性膳食纤维：超声/微波辅助提取的影响
咖啡银皮（CSS）是可溶性膳食纤维（8％–11％）的潜在来源，是咖啡烘焙过程中获得的主要咖啡副产品。超声波辅助萃取（UAE）和微波辅助萃取（MAE）被认为是高效且经济的新型萃取技术。在这项研究中，研究了从阿拉伯联合酋长国，MAE和同时进行的超声-微波辅助提取（UMAE）技术中提取CSS中的可溶性膳食纤维（SDF），并将其与常规溶剂提取（CSE）进行了比较。UMAE达到了SDF的最高回收率（42.7±0.4％），分别是CSE，UAE和MAE的回收率的1.5倍，1.9倍和1.2倍。UMAE的提取时间为20分钟，与UAE和MAE相同，比CSE缩短4.5倍。这表明与CSE或其他单独应用的新型提取方法相比，UAE和MAE的组合可通过提高回收率以及减少提取时间来增强提取过程。研究中还研究了CSS中SDF提取物的营养成分和理化特性。
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