Extraction, purification and antioxidant activities of the polysaccharides from maca (Lepidium meyenii)

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	Extraction, purification and antioxidant activities of the polysaccharides from maca (Lepidium meyenii)
	Zha, Shenghua 1,2; Zhao, Qingsheng 1; Chen, Jinjin 1,2; Wang, Liwei 1; Zhang, Guifeng 1; Zhang, Hong 3; Zhao, Bing 1
刊名	CARBOHYDRATE POLYMERS
	2014-10-13
卷号	111 期号:OCT 页码:584-587
关键词	Maca Lepidium meyenii Polysaccharides Monosaccharide composition Antioxidant activity
ISSN号	0144-8617
其他题名	Carbohydr. Polym.
中文摘要	Water-soluble polysaccharides were separated from maca (Lepidium meyenii) aqueous extract (MAE). The crude polysaccharides were deproteinized by Sevag method. During the preparation process of maca polysaccharides, amylase and glucoamylase effectively removed starch in maca polysaccharides. Four Lepidium meyenii polysaccharides (LMPs) were obtained by changing the concentration of ethanol in the process of polysaccharide precipitation. All of the LMPs were composed of rhamnose, arabinose, glucose and galactose. Antioxidant activity tests revealed that LMP-60 showed good capability of scavenging hydroxyl free radical and superoxide radical at 2.0 mg/mL, the scavenging rate was 52.9% and 85.8%, respectively. Therefore, the results showed that maca polysaccharides had a high antioxidant activity and could be explored as the source of bioactive compounds. (C) 2014 Elsevier Ltd. All rights reserved.
英文摘要	Water-soluble polysaccharides were separated from maca (Lepidium meyenii) aqueous extract (MAE). The crude polysaccharides were deproteinized by Sevag method. During the preparation process of maca polysaccharides, amylase and glucoamylase effectively removed starch in maca polysaccharides. Four Lepidium meyenii polysaccharides (LMPs) were obtained by changing the concentration of ethanol in the process of polysaccharide precipitation. All of the LMPs were composed of rhamnose, arabinose, glucose and galactose. Antioxidant activity tests revealed that LMP-60 showed good capability of scavenging hydroxyl free radical and superoxide radical at 2.0 mg/mL, the scavenging rate was 52.9% and 85.8%, respectively. Therefore, the results showed that maca polysaccharides had a high antioxidant activity and could be explored as the source of bioactive compounds. (C) 2014 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Chemistry, Applied ; Chemistry, Organic ; Polymer Science
研究领域[WOS]	Chemistry ; Polymer Science
收录类别	SCI
原文出处	://WOS:000340302100069
语种	英语
WOS记录号	WOS:000340302100069
公开日期	2014-09-30
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/11599]
专题	过程工程研究所_研究所（批量导入）
作者单位	1.Chinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 3.Beijing Tong Ren Tang Hlth Pharmaceut Co Ltd, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zha, Shenghua,Zhao, Qingsheng,Chen, Jinjin,et al. Extraction, purification and antioxidant activities of the polysaccharides from maca (Lepidium meyenii)[J]. CARBOHYDRATE POLYMERS,2014,111(OCT):584-587.
APA	Zha, Shenghua.,Zhao, Qingsheng.,Chen, Jinjin.,Wang, Liwei.,Zhang, Guifeng.,...&Zhao, Bing.(2014).Extraction, purification and antioxidant activities of the polysaccharides from maca (Lepidium meyenii).CARBOHYDRATE POLYMERS,111(OCT),584-587.
MLA	Zha, Shenghua,et al."Extraction, purification and antioxidant activities of the polysaccharides from maca (Lepidium meyenii)".CARBOHYDRATE POLYMERS 111.OCT(2014):584-587.