TY - JOUR
T1 - Phytochemical content, antioxidant capacity and physicochemical properties of pomegranate grown in different microclimates in South Africa
AU - Mditshwa, Asanda
AU - Fawole, Olaniyi A.
AU - Al-Said, Fahad
AU - Al-Yahyai, Rashid
AU - Opara, Umezuruike L.
N1 - Funding Information:
Acknowledgements — This work is based upon research supported by the South African Research Chairs Initiative of the Department of Science and Technology and National Research Foundation. The authors are grateful to Citrogold (Pty) Ltd and and the Perishable Products Export Control Board (PPECB) for their financial support.
PY - 2013/6/1
Y1 - 2013/6/1
N2 - We investigated the antioxidant and physicochemical properties of pomegranate (Punica granatum cv. Bhagwa) fruit grown in three microclimates in South Africa. The physicochemical properties of fruit peel and arils differed among the growing locations, including weight and redness color of both peel and arils. Contents of vitamin C, anthocyanin and total phenolics were 0.67-1.41 mg ml-1, 0.07-0.16 mg ml-1 and 8.54-13.91 mg ml -1, respectively. Fruit grown in locations with high light intensity had higher vitamin C content and lower phenolic content than those of fruit from low-altitude locations and high light intensity. The pH of juice did not significantly differ among locations, whereas significant variation was observed in total soluble solids (TSS), titratible acidity (TA) and TSS:TA ratio. Fruit from locations with low rainfall had high TSS and low TA. Principal component analysis was used successfully to classify fruit by growing location on the basis of antioxidant and phytochemical contents.
AB - We investigated the antioxidant and physicochemical properties of pomegranate (Punica granatum cv. Bhagwa) fruit grown in three microclimates in South Africa. The physicochemical properties of fruit peel and arils differed among the growing locations, including weight and redness color of both peel and arils. Contents of vitamin C, anthocyanin and total phenolics were 0.67-1.41 mg ml-1, 0.07-0.16 mg ml-1 and 8.54-13.91 mg ml -1, respectively. Fruit grown in locations with high light intensity had higher vitamin C content and lower phenolic content than those of fruit from low-altitude locations and high light intensity. The pH of juice did not significantly differ among locations, whereas significant variation was observed in total soluble solids (TSS), titratible acidity (TA) and TSS:TA ratio. Fruit from locations with low rainfall had high TSS and low TA. Principal component analysis was used successfully to classify fruit by growing location on the basis of antioxidant and phytochemical contents.
KW - Punica granatum
KW - altitude
KW - antioxidant capacity
KW - phytochemicals
KW - principal component analysis
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U2 - 10.1080/02571862.2013.802033
DO - 10.1080/02571862.2013.802033
M3 - Article
AN - SCOPUS:84880246049
SN - 0257-1862
VL - 30
SP - 81
EP - 90
JO - South African Journal of Plant and Soil
JF - South African Journal of Plant and Soil
IS - 2
ER -