title: Effect of extraction methods on the properties and antioxidant activities of Chuanminshen violaceum polysaccharides.
abstract: The yields, properties and antioxidant activities of polysaccharides extracted from Chuanminshen violaceum (CVPs) by various methods including heated reflux extraction (HRE), ultrasound-assisted extraction (UAE), and microwave-assisted extraction (MAE), were evaluated. The results indicated that the yield of the polysaccharides (34.59%) obtained by MAE was higher than those obtained by other methods. Polysaccharides extracted by all three methods had similar physicochemical characteristics and FT-IR spectra. However, SEM images of particles of Chuanminshen violaceum treated by the three different methods were significantly different. Compared with HRE, UAE and MAE resulted in CVPs with lower molecular weight distributions and higher reducing power and scavenging abilities for ABTS+and DPPH. CVPs obtained by UAE had reduced scavenging abilities for DPPH compared to those obtained by MAE. These data indicated that MAE resulted in better extraction yields for CVPs and also resulted in CVPs with higher bioactivity.
authors: College of Food Science, Sichuan Agricultural University, Ya'an 625014, China. Electronic address: Dongdonghmin@outlook.com.
authors: Hongmin
authors: H
authors: Dong
authors: College of Food Science, Sichuan Agricultural University, Ya'an 625014, China. Electronic address: 459525039@qq.com.
authors: Shang
authors: S
authors: Lin
authors: College of Food Science, Sichuan Agricultural University, Ya'an 625014, China. Electronic address: zhangqing@sicau.edu.cn.
authors: Qing
authors: Q
authors: Zhang
authors: College of Food Science, Sichuan Agricultural University, Ya'an 625014, China. Electronic address: calm945@aliyun.com.
authors: Hong
authors: H
authors: Chen
authors: College of Food Science, Sichuan Agricultural University, Ya'an 625014, China. Electronic address: lwj18728158690@163.com.
authors: Weijie
authors: W
authors: Lan
authors: College of Food Science, Sichuan Agricultural University, Ya'an 625014, China. Electronic address: Lee909293@163.com.
authors: Huiyan
authors: H
authors: Li
authors: College of Food Science, Sichuan Agricultural University, Ya'an 625014, China. Electronic address: hjingliu@163.com.
authors: Jingliu
authors: J
authors: He
authors: College of Food Science, Sichuan Agricultural University, Ya'an 625014, China. Electronic address: qinwen@sicau.edu.cn.
authors: Wen
authors: W
authors: Qin
mesh_terms: D000975:Antioxidants / Q000737:chemistry* / Q000302:isolation & purification* / Q000494:pharmacology; D019661:Apiaceae / Q000737:chemistry*; D052160:Benzothiazoles / Q000737:chemistry; D001713:Biphenyl Compounds / Q000737:chemistry; D005591:Chemical Fractionation / Q000379:methods*; D006358:Hot Temperature; D008872:Microwaves; D008970:Molecular Weight; D010084:Oxidation-Reduction / Q000187:drug effects; D010851:Picrates / Q000737:chemistry; D011134:Polysaccharides / Q000737:chemistry* / Q000302:isolation & purification* / Q000494:pharmacology; D013451:Sulfonic Acids / Q000737:chemistry; D000069453:Ultrasonic Waves
chemical_list: D000975:Antioxidants; D052160:Benzothiazoles; D001713:Biphenyl Compounds; D010851:Picrates; D011134:Polysaccharides; D013451:Sulfonic Acids; C002502:2,2'-azino-di-(3-ethylbenzothiazoline)-6-sulfonic acid; C004931:1,1-diphenyl-2-picrylhydrazyl
keywords: Chuanminshen violaceum; Extraction method; Polysaccharide