Isolation, physicochemical and structural characterisation of a novel natural zinc polysaccharide from Crassostrea hongkongensis

被引：7

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

来源：

INTERNATIONAL JOURNAL OF FOOD SCIENCE AND TECHNOLOGY | 2022年 / 57卷 / 12期

关键词：

Crassostrea hongkongensis; natural zinc polysaccharide; physicochemical properties; structure characterisation; zinc supplements; OYSTER; ACCUMULATION; PURIFICATION; ANTIOXIDANT;

D O I：

10.1111/ijfs.16139

中图分类号：

TS2 [食品工业];

学科分类号：

0832 ;

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.

引用

页码：7872 / 7884

页数：13

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