Journal
INTERNATIONAL JOURNAL OF FOOD PROPERTIES
Volume 15, Issue 3, Pages 481-494Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10942912.2010.491931
Keywords
Anthocyanins; Colour juice; HPLC; Mollar; Organic acids; Punica granatum; Sugars
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Six pomegranate (Punica granatum L.) cultivars belonging to the 'Mollar' group were evaluated under homogeneus growing conditions. Chemical parameters, such as sugars, organic acids, and anthocyanin contents, and other quality parameters, including fruit weight, pH, total soluble solids, titratable acidity, and colour, were evaluated. Fruit weight was not significantly affected by cultivar. The highest TSS content was detected in juice from MO6 (15.81 degrees Brix). All cultivars were sweet, and the ripening index ranged from 59.14 (ME5) to 87.95 (MO6). The composition of pomegranate juice was dependent on the cultivar. Glucose was the major sugar in all evaluated cultivars (60-64% of total sugars), followed by fructose, maltose, and sucrose. Among the detected organic acids, citric acid was the predominant (>54%). The total anthocyanin content ranged from 72 to 200 mg per litre of juice, being the main anthocyanin cyanidin 3-glucoside followed by cyanidin 3,5-diglucoside. The principal component analysis and cluster analysis showed high dissimilarity levels in cultivars ME5, MO6, MA4, and MA5.
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