Fatty acid profile of peel and pulp of Spanish jujube (Ziziphus jujuba Mill.) fruit

Add time:08/30/2019    Source:sciencedirect.com

The fatty acid methyl esters (FAMEs) profiles of fruit peel and pulp of 4 Spanish cultivars of Ziziphus jujuba were studied. The FAMEs profile of the cultivar ‘GAL’ was studied under two farming practices, (i) organic, ‘GAL-E’ and conventional, ‘GAL-T’. Eleven FAMEs were identified, the predominant ones were cis-palmitoleic acid (pulp) and oleic and palmitic acid (peel). When comparing the FAMEs profiles between organic and conventional ‘GAL’ peel jujube fruits, the ‘GAL-E’ (organic) presented a higher unsaturated/saturated ratio than the ‘GAL-T’ cultivar (conventional), while this relationship in the pulp was the opposite. The ‘DAT’ cultivar was interesting for its high palmitoleic acid content while the ‘GAL-E’ and ‘GAL-T’ cultivars had high contents of oleic, palmitic and linoleic acids. The LDA (linear discriminant analysis) model showed that the FAMEs contents could be used to discriminate the studied cultivars, and the agricultural practice, because all groups were clearly separated with no overlaps.

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