Valorization of Asparagus leafy by-product by ionic-liquid extraction and characterization of bioactive compounds in the extracts

作     者：Bimal Chitrakar Min Zhang Sakamon Devahastin Benu Adhikari Xiaohu Zhang 

作者机构：State Key Laboratory of Food Science and TechnologyJiangnan University214122WuxiJiangsuChina College of Food Science and TechnologyHebei Agricultural UniversityBaoding071001HebeiChina Jiangsu Province International Joint Laboratory on Fresh Food Smart Processing and Quality MonitoringJiangnan University214122WuxiJiangsuChina Advanced Food Processing Research LaboratoryDepartment of Food EngineeringFaculty of EngineeringKing Mongkut’s University of Technology Thonburi126 Pracha u-tid RoadBangkok10140Thailand School of ScienceRMIT UniversityMelbourneVIC3083Australia Nantong Shuangyang Ecological Agriculture Technology Co.Ltd.NantongJiangsuChina 

出 版 物：《Food Bioscience》 (食品生物科学（英文）)

年 卷 期：2022年第46卷第2期

页      面：857-864页

核心收录：

学科分类：0710[理学-生物学] 0832[工学-食品科学与工程（可授工学、农学学位）] 1004[医学-公共卫生与预防医学(可授医学、理学学位)] 081704[工学-应用化学] 07[理学] 070304[理学-物理化学(含∶化学物理)] 08[工学] 0817[工学-化学工程与技术] 0703[理学-化学] 

基　　金：We acknowledge the financial supports from National Key R&D Program of China(Contract No.2017YFD0400901) Jiangsu Province(China)Agricultural Project(Contract No.BE2018329) Jiangsu Province Key Laboratory Project of Advanced Food Manufacturing Equipment and Technology(No.FMZ202003) National First-Class Discipline Program of Food Science and Technology(No.JUFSTR 20180205),all of which had enabled us to carry out this study 

主　　题：1-Ethy-3-methylimidazolium bromide Ionic-liquid Methanol-extraction Rutin Ultrasound-microwave extraction 

摘      要：Asparagus(Asparagus officinalis)is a high-value low-calorie vegetable with array of bioactive *** processing nevertheless generates substantial quantity of by-products;their valorization is of utmost importance for the sustainability of the ***,feasibility of using four imidazolium-based ionic liquids and their combinations as well as water and methanol to extract bioactive compounds from asparagus leafy by-product was *** of ultrasound-microwave-assisted heating to augment extraction was also assessed.1-ethyl-3-methylimidazolium-bromide(EMIMBr)resulted in the highest extraction yield of rutin(25.7 mg/g),which is the most abundant compound in the by-product;such a yield was comparable to that achievable via methanol ***-microwave-assisted extraction did not show significant improvement in rutin yield when EMIMBr was ***,although methanolic extract exhibited slightly higher content of rutin,it also contained the higher number of impurities;EMIMBr extract contained less impurities with higher relative content of rutin(70.9%)than that in methanolic extract(67.7%).This could be a milestone in extraction work for an efficient purification.