Lin Dan, Xu Cheng-Jian, Liu Yang, Zhou Yu, Xiong Shuang-Li, Wu Hua-Chang, Deng Jing, Yi Yu-Wen, Qiao Ming-Feng, Xiao Hang, Chan Sook-Wah, Lu Yi
Department of Food Science, College of Food Science and Technology, Sichuan Tourism University, Chengdu 610100, China.
Faculty of Health and Medical Sciences, Taylor's University, Subang Jaya 47500, Selangor Darul Ehsan, Malaysia.
Polymers (Basel). 2022 Aug 26;14(17):3510. doi: 10.3390/polym14173510.
Two polysaccharides from 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 Fe chelating activity and superoxide anion scavenging activity, implying that they might be potential antioxidants.
从罗伊氏乳杆菌中纯化出两种多糖（CTLP - 1和CTLP - 2），并通过物理和化学测试对其结构进行了分析。CTLP - 1的分子量为5900 Da，由阿拉伯糖、葡萄糖和半乳糖组成，质量摩尔比为6.7:4.2:1。CTLP - 1的主链为→1)-α-半乳糖醛酸-(1→4)-α-阿拉伯糖-(1→2)-α-葡萄糖醛酸-(4→。CTLP - 2的分子量为8200 Da，由阿拉伯糖、葡萄糖和半乳糖组成，质量摩尔比为16.76:4.28:1。CTLP - 2的主链为→1)-α-半乳糖-(2,6→1)-α-阿拉伯糖-(4,6→1)-α-葡萄糖醛酸-(3→。它们都表现出较高的还原力、羟基自由基清除活性、DPPH自由基清除活性和ABTS自由基清除活性，以及适度的铁螯合活性和超氧阴离子清除活性，这表明它们可能是潜在的抗氧化剂。
