ISSN: 0041-3216 (Online), 0041-3216 (Print)
Volume 92 Number 2
Chemical properties, bioactive compounds, organic sugars and acids of harvested pomegranate cv. Wonderful in the Western Cape Province, South Africa. (129)
A pomegranate cultivar (Wonderful) from all three localities in Western Cape province of South Africa during the 2013 season was evaluated for chemical properties. Fruits were analyzed for total soluble solids (TSS) or °Brix, titratable acidity (TA) and juice pH. Chemical properties evaluated were; total phenols, anthocyanin, antioxidant, organic sugars and acids. Results of the study revealed significant variations in all measured parameters attributed to location. Total soluble solids content varied from 16.0 – 17.3 (°Brix), pH values from 2.7 – 3.0, titratable acid content varied from 1.3 – 1.7 and maturity index from 9.7 – 13.4. Anthocyanins, total phenols and antioxidants were 772 – 1134 mg/100ml; 1611 – 1834 mg/100ml and 12.57 – 14.84 mg/100ml, respectively. Organic acids (citric and malic) and organic sugar (fructose, glucose and sucrose) had significant differences, while no differences were shown in Acetic acid across the production areas. Location and cultivar therefore play an important role when assessing chemical properties (TSS, pH, TA, anthocyanin, phenolics and antioxidants) and organic sugar/acids of pomegranate.
Keywords: Punica granatum, chemical properties, organic sugar/acid