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Zhongguo Zhong Yao Za Zhi. 2019 Sep;44(18):4015-4020. doi: 10.19540/j.cnki.cjcmm.20190619.201.

[Chemical constituents from fermented Noni juice].

[Article in Chinese]

Author information

1
Key Laboratory of Tropical Medicinal Plant Chemistry of Ministry of Education,Hainan Normal University Haikou 571158,China Key Laboratory of Tropical Medicinal Plant Chemistry of Hainan Province,College of Chemistry and Chemical Engineering,Hainan Normal University Haikou 571158,China.

Abstract

The present work was launched to study the chemical constituents from fermented Noni juice. Ten compounds were isolated by using silicagel,Sephadex LH-20 and pre-HPLC. The structures of these compounds were identified by 1D and 2D NMR. Their structures were established as norimester( 1),cyclo( R-Pro-S-Phe)( 2),cyclo-( L-Pro-L-Leu)( 3),trans-cyclo-( D-tryptophanyl-Ltyrosyl)( 4),cyclo( L-Trp-N-methyl-L-Ala-)( 5),4-allyl-2-hydroxyphenyl 1-O-β-D-apiosyl-( 1 → 6)-β-D-glucopyranoside( 6),2-methoxy-4-vinylphenyl β-D-apiofuranosyl-( 1→6)-β-D-glucopyranoside( 7),( +)-lirioresinol A( 8),( ±)-syringaresinol( 9),and2-formyl-1 H-pyrrole-1-butanoic acid( 10). All compounds were tested for their antibacterial activity and α-glucosidase inhibitory activity. Compound 1 was a new compound. All compounds were isolated from fermented Noni juice for the first time. Compound 1 showed significant inhibitory activity against α-glucosidase [IC50 value of( 4. 22±0. 03) μmol·L-1].

KEYWORDS:

chemical constituents; fermented Noni juice; structural identification; α-glucosidase activity

[Indexed for MEDLINE]

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