Content in organic acids of Mespilus spp. and Crataegus spp. genotypes
Keywords:fruits; genotype; hawthorn; HPLC; medlar; organic acids
Medlar and hawthorn genotypes were analyzed and also their individual organic acids, in order to better understand their use as functional foods, but also as ingredients in pharmaceutical, nutritional products and in medicine. HPLC analysis was carried out using a Surveyor Thermo Electron system. Ascorbic, oxalic, tartric, malic, citric, succinic and fumaric acids were detected. On average, malic acid was predominant with a range of 415.08 mg/100 g FW in Mespilus germanica and 1,128.68 mg/100 g FW in Crataegus pentagyna. The order of organic acid depending on their content/100 g FW was: for Mespilus germanica - malic > tartric > oxalic > citric > fumaric > ascorbic > succinic; for Crataegus monogyna - malic > oxalic > citric > succinic >tartric > ascorbic > fumaric; for Crataegus pentagyna - malic > citric > oxalic > succinic >tartric > ascorbic > fumaric. The data obtained in this study do confirm that medlar and hawthorn fruits are a rich source of organic acid, and their organic acid content within the 100 g was greater than human daily consumption for this required level.
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