Literature DB >> 29199449

Structure, conformation in aqueous solution and antimicrobial activity of ulvan extracted from green seaweed Ulva reticulata.

Thi Thanh Van Tran1, Hai Bang Truong1, Nguyen Ha Vy Tran1, Thi Minh Thu Quach2, Thi Nu Nguyen3, Minh Ly Bui1, Yoshiaki Yuguchi4, Thi Thu Thuy Thanh2.   

Abstract

The aim of this study is to elucidate the structure and investigate the antimicrobial activity of an ulvan obtained by water extraction from green seaweed Ulva reticulata collected at Nha Trang sea of Vietnam by using IR, NMR, SEC-MALLS and SAXS methods. The ulvan is composed of rhamnose, galactose, xylose, manose and glucose (mole ratio Rha: Gal: Xyl: Man: Glu = 1:0.12:0.1:0.06:0.03), uronic acid (22.5%) and sulphate groups (17.6%). Chemically structural determination showed that the ulvan mainly composed of disaccharide [→4)β-D-GlcA(1→4)α-L-Rha3S-(1→]. The results from SAXS indicated that ulvan under study has a rod-like bulky chain conformation. Ulvan from U. reticulata showed high antimicrobial activity, with inhibition zone diameter of 20 mm against Enterobacter cloace and 18 mm against Escherichia coli.

Entities:  

Keywords:  Ulva reticulata; Ulvan; antimicrobial activity; green seaweed; structure

Mesh：

Substances：

Year:  2017        PMID： 29199449     DOI： 10.1080/14786419.2017.1408098

Source DB:  PubMed          Journal:  Nat Prod Res        ISSN： 1478-6419            Impact factor:   2.861


  10 in total

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Authors:  Stefanos Kikionis; Efstathia Ioannou; Eleni Aggelidou; Leto-Aikaterini Tziveleka; Efterpi Demiri; Athina Bakopoulou; Spiros Zinelis; Aristeidis Kritis; Vassilios Roussis
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  10 in total

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