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NMR‐based analysis of the chemical composition of Japanese persimmon aqueous extracts
Author(s) -
Ryu Shoraku,
Furihata Kazuo,
Koda Masanori,
Wei Feifei,
Miyakawa Takuya,
Tanokura Masaru
Publication year - 2016
Publication title -
magnetic resonance in chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.483
H-Index - 72
eISSN - 1097-458X
pISSN - 0749-1581
DOI - 10.1002/mrc.4364
Subject(s) - chemistry , diospyros kaki , nuclear magnetic resonance spectroscopy , chemical composition , proton nmr , aqueous solution , carbon 13 nmr , diospyros , analytical chemistry (journal) , chromatography , organic chemistry , botany , biology
Japanese persimmon ( Diospyros kaki L.) is recognized as an outstanding source of biologically active compounds relating to many health benefits. In the present study, NMR spectroscopy provided a comprehensive metabolic overview of Japanese persimmon juice. Detailed signal assignments of Japanese persimmon juice were carried out using various 2D NMR techniques incorporated with broadband water suppression enhanced through T 1 effects (BB‐WET) or WET sequences, and 26 components, including minor components, were identified. In addition, most components were quantitatively evaluated by the integration of signals using conventional 1 H NMR and BB‐WET NMR. This is the first detailed analysis combined with quantitative characterization of chemical components using NMR for Japanese persimmon. Copyright © 2015 John Wiley & Sons, Ltd.