文献类型：期刊文献

英文题名：Isolation, physicochemical and structural characterisation of a novel natural zinc polysaccharide from Crassostrea hongkongensis

作者：Chen, Zhongqin[1,2,3,4,5,6];Han, Rong[1];Zhou, Longjian[1];Lin, Haisheng[1,3,4,5,6];Cao, Wenhong[1,3,4,5,6];Gao, Jialong[1,3,4,5,6];Zheng, Huina[1,2,3,4,5,6];Zhang, Chaohua[1,3,4,5,6];Qin, Xiaoming[1,3,4,5,6]

机构：[1]Guangdong Ocean Univ, Coll Food Sci & Technol, Zhanjiang 524088, Peoples R China;[2]Guangdong Ocean Univ, Shenzhen Inst, Shenzhen 518120, Peoples R China;[3]Natl Res & Dev Branch Ctr Shellfish Proc Zhanjian, Zhanjiang 524088, Peoples R China;[4]Guangdong Prov Engn Technol Res Ctr Seafood, Guangdong Prov Key Lab Aquat Prod Proc & Safety, Zhanjiang 524088, Peoples R China;[5]Guangdong Prov Engn Lab Marine Biol Prod, Key Lab Adv Proc Aquat Prod Guangdong Higher Educ, Zhanjiang 524088, Peoples R China;[6]Dalian Polytech Univ, Collaborat Innovat Ctr Seafood Deep Proc, Dalian 116034, Peoples R China

年份：2022

卷号：57

期号：12

起止页码：7872

外文期刊名：INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY

收录：SCI-EXPANDED(收录号：WOS:000878746000001)、、WOS

基金：This work was supported by the National Key Research and Development Project of China (2018YFD0901105), the "First Class" Provincial Financial Special Fund Project of Guangdong Ocean University (231419014), the Science and Technology Plan Project of Zhanjiang City (2021E05017), the Program for Scientific Research Start-Up Funds of Guangdong Ocean University (060302042007) and the Guangdong Basic and Applied Basic Research Foundation (2021A1515110621). We gratefully acknowledge and are indebted to the anonymous referees for their comments and constructive suggestions provided for improving the manuscript.

语种：英文

外文关键词：Crassostrea hongkongensis; natural zinc polysaccharide; physicochemical properties; structure characterisation; zinc supplements

外文摘要：A novel natural zinc-enriched polysaccharide: OZPs-1 was isolated from oyster (Crassostrea hongkongensis), with 922.18 mu g g(-1) of zinc. The physicochemical properties and structural features of OZPs-1 were systematically studied. The results showed OZPs-1 was predominantly composed of glucose, with a molecular weight ranging from 4 to 2044 kDa. OZPs-1 showed favourable thermal stability. NMR analysis showed that there was no sulphate substitution and C-6 substitution in OZPs-1, while C-4 might be the binding site of zinc and polysaccharide. UV, FTIR and XRD spectra suggested -OH and -COOH group might be involved in the binding of zinc to polysaccharides in OZPs-1 and there were no ZnO and sulphate substitutions in OZPs-1. These conclusions indicated that zinc might bind with -OH and -COOH in C-4 of polysaccharides and impart the stable structure and favourable physicochemical properties of OZPs-1, which could facilitate the application of OZPs-1 as natural organic zinc supplements.