DETERMINATION AND COMPARISON OF MAJOR POLYPHENOL OF FOUR RED FRUITS USING HIGH-PERFORMANCE LIQUID CHROMATOGRAPHY (HPLC) WITH DIODE-ARRAY DETECTION

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December – January 2013/14, vol. 3, no. 3
pages: 250-252
Article type: Food Sciences of Food Sciences
Abstract: Polyphenols are ubiquitous compounds in plants which are abundant micronutrients in our diet. They got more attention in recent years due to their bioactive functions and health effects on many diseases such as cancer. These components are secondary plant metabolites that function as antimicrobial, antiviral and anti-inflammatory compounds. Extraction of these compounds from plants and fruits and in vitro and in vivo study of their various health effects has been subject of many researches. The objective of this study was to investigate the profiles of polyphenolic compounds in apple, red grape, sour cherry and pomegranate fruit juices and comparison of the phenolic contents of various juices. Major polyphenolic compounds of four different concentrated fruit juices from various industries were analyzed and characterized by liquid chromatography. RP-HPLC-DAD was used in our study as powerful and accurate method. The total and individual polyphenolic compounds differed significantly among the four selected red fruit juices. Among the tested juices, sour cherry and apple juices had the highest and the lowest contents of phenolic compounds, respectively.
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