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The chemical composition of virgin olive oil may be influenced by genotype and different agronomic (i.e. fruit ripeness degree, water supply) and technological factors. This article reports the evaluation of the influence of the olive ripening stage on the quality indices, the major and the minor components and the oxidative stability of the two main monovarietal Tunisian cultivars (cvv. Chétoui and...
A comparison between a borate-phosphate-SDS based MEKC and an RP-HPLC method for the separation of seven tea catechins and gallic acid in a green tea extract is here proposed. Under optimised conditions, HPCE offered several advantages respect to time of analysis (compounds were separated within 4.5 min), sensitivity (HPCE LODs were about 20-100 times lower than HPLC ones) and solvent consumption...
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