70% of total extract) and hexanoic acid (
8% of total extract) were found to be the major constituents. Due to noni maturation, octanoic acid, decanoic acid and 2E-nonenal decreased their concentrations, while some esters (methyl hexanoate, methyl octanoate, ethyl octanoate and methyl 4E-decenoate), which their fruity odor notes, increased their contents. Two unsaturated esters, reported for the first time in this fruit, 3-methyl-3-buten-1-yl hexanoate and 3-methyl-3-buten-1-yl octanoate, significantly decreased their concentration in the ripe to over-ripe fruits.]]>
BACKGROUND: Volatile and non-volatile acids were analysed in noni (Morinda citrifolia L.) fruit by a combination of conventional sampling methods with gas chromatography/flame ionisation detection and gas chromatography/mass spectrometry.
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