Abstract
Aims: The pomegranate, Punica granatum, is cultivated in tropical and subtropical region. Pomegranates contain a polyphenols such as gallic acid, ellagitannins, gallotannins, chlorogenic acid, caffeic acid, ferulic acid, coumaric acids, and catechin and anthocyanins. The term catechin is also commonly used to refer to the related family of flavonoids and the subgroup flavan-3-ols. In this study we want to compare the amount of catechin in different cultivars of Iranian pomegranate. Place and Duration of Study: Department of Horticulture and Department of Food science and technology, Khorasgan (Isfahan) Branch, Islamic Azad University, Isfahan, Iran, between march 2010 and November 2012. Methodology: We gathered the fruit of Iranian pomegranate cultivars in order to make them dry in freeze dryer (w028, Germany). All of the freeze dryer samples were grained and became a soft powder before analysis. 0.5 g sample, mixed with 25 ml of 80 percent ethanol-water solution, was kept in an ultrasonic bath to extract catechins (M. G. Miguel, Original Research Article Annual Research & Review in Biology, 4(8): 1339-1345, 2014 134
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