Enzyme and microwave co-assisted extraction, structural characterization and antioxidant activity of polysaccharides from Purple-heart Radish

被引：78
作者：
Lin, Yuyang [1 ,2 ]
Pi, Jiaju [2 ]
Jin, Peiyi [2 ]
Liu, Yingtao [2 ]
Mai, Xiaoman [2 ]
Li, Pingfan [1 ]
Fan, Huajun [2 ]
机构：
[1] Guangdong Ind Polytech, Sch Food Engn & Biotechnol, Guangzhou 510300, Peoples R China
[2] Guangdong Pharmaceut Univ, Sch Pharm, Guangzhou 510006, Peoples R China
来源：
FOOD CHEMISTRY | 2022年 / 372卷
关键词：
Purple-heart Radish; Enzyme-assisted extraction; Microwave-assisted aqueous two-phase extraction; Synergistic extraction; Polysaccharides; Process optimization; Structural characterization; Antioxidant activity; AQUEOUS 2-PHASE EXTRACTION; SULFATED POLYSACCHARIDES; SOPHORAE TONKINENSIS; PROCESS OPTIMIZATION; ULTRASOUND; PURIFICATION; ALKALOIDS; PRODUCTS;
D O I：
10.1016/j.foodchem.2021.131274
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
A novel method of simultaneous extraction and separation of diverse polysaccharides from Purple-heart Radish was developed by integrating EAE with MAATPE. The effects of different enzymes, the ATPS composition, extraction temperature, time etc. were investigated by single-factor experiments and RSM. Under the optimum conditions, the extraction yields of PTP, PBP and total polysaccharides were 9.107 +/- 0.391%, 32.506 +/- 0.046% and 41.613 +/- 0.437%, respectively. By means of HPGPC and PMP-HPLC, Mw of PTP and Mw of PBP were 15935 Da and 27962 Da, respectively. PTP and PBP were mainly composed of mannose, glucuronic acid, aminogalactose, glucose, galactose and arabinose. Moreover, both polysaccharides exhibited stronger antioxidant activities for scavenging multiple radicals and anti-lipid peroxidation. Compared to the conventional extraction methods, EAE-MAATPE achieved higher extraction efficiency due to the synergistic effect between EAE and MAATPE leading to rupture and enzymolysis of cell. Thus, EAE-MAATPE provided an efficient alternative to simultaneous extraction of different polysaccharides from natural products.
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页数：12
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