Chemical Structures and Antioxidant Activities of Polysaccharides from <i>Carthamus tinctorius</i> L.

Dan Lin; Cheng-Jian Xu; Yang Liu; Yu Zhou; Shuang-Li Xiong; Hua-Chang Wu; Jing Deng; Yu-Wen Yi; Ming-Feng Qiao; Hang Xiao; Sook-Wah Chan; Yi Lu

doi:10.3390/polym14173510

Polymers (Aug 2022)

Chemical Structures and Antioxidant Activities of Polysaccharides from <i>Carthamus tinctorius</i> L.

Dan Lin,
Cheng-Jian Xu,
Yang Liu,
Yu Zhou,
Shuang-Li Xiong,
Hua-Chang Wu,
Jing Deng,
Yu-Wen Yi,
Ming-Feng Qiao,
Hang Xiao,
Sook-Wah Chan,
Yi Lu

Affiliations

Dan Lin: Department of Food Science, College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China
Cheng-Jian Xu: Department of Food Science, College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China
Yang Liu: Department of Food Science, College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China
Yu Zhou: Department of Food Science, College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China
Shuang-Li Xiong: Department of Food Science, College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China
Hua-Chang Wu: Department of Food Science, College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China
Jing Deng: Department of Food Science, College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China
Yu-Wen Yi: Department of Food Science, College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China
Ming-Feng Qiao: Department of Food Science, College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China
Hang Xiao: Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA
Sook-Wah Chan: Faculty of Health and Medical Sciences, Taylor’s University, Subang Jaya 47500, Selangor Darul Ehsan, Malaysia
Yi Lu: Department of Food Science, College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China

DOI: https://doi.org/10.3390/polym14173510
Journal volume & issue: Vol. 14, no. 17
p. 3510

Abstract

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Two polysaccharides from Carthamus tinctorius L. (CTLP-1 and CTLP-2) were purified, and their structures were analyzed by physical and chemical testing. CTLP-1 had a mass of 5900 Da that was composed of arabinose, glucose, and galactose with a mass molar ratio of 6.7:4.2:1. The backbone of CTLP-1 was →1)-α-GalAp-(1→4)-α-Arap-(1→2)-α-Glup-(4→. CTLP-2 had a mass of 8200 Da that was composed of arabinose, glucose, and galactose with a mass molar ratio of 16.76:4.28:1. The backbone of CTLP-2 was →1)-α-Galp-(2,6 →1)-α-Arap-(4,6 →1)-α-Glup-(3→. Both of them exhibited a high reducing power, hydroxyl radical scavenging activity, DPPH radical scavenging activity and ABTS radical scavenging activity, moderate Fe2+ chelating activity and superoxide anion scavenging activity, implying that they might be potential antioxidants.

Published in Polymers

ISSN: 2073-4360 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Organic chemistry
Website: http://www.mdpi.com/journal/polymers/

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