Title of article :
Identification and quantification of phenolic compounds and their effects on antioxidant activity in pomegranate juices of eight Iranian cultivars
Author/Authors :
Mousavinejad، نويسنده , , Gelareh and Emam-Djomeh، نويسنده , , Zahra and Rezaei، نويسنده , , Karamatollah and Khodaparast، نويسنده , , Seyyed Mohammad Hossein Haddad، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Abstract :
Important health-promoting compounds, including six types of anthocyanins, phytoestrogenic flavonoids and ellagic acid were determined individually in pomegranate juices (Punica granatum L.) of eight Iranian cultivars by high performance liquid chromatography coupled to UV–vis detector (HPLC–UV) using individual calculation from the peak area based on standard curves of each component. Total phenolics and antioxidant activities were determined by Folin–Ciocalteu and 2,2-diphenyl-1-picrylhydrazyl (DPPH) methods, respectively, and compared among the cultivars. The predominant anthocyanins were delphinidin 3,5-diglucoside (372–5301 mg/l) followed by cyanidin 3,5-diglucoside (242–2361 mg/l), delphinidin 3-glucoside (49–1042 mg/l) and pelargonidin 3,5-diglucoside (7–90 mg/l), respectively. The highest level of total tannins was found in Sweet Alak cultivar (3 mg/l). Saveh Black Leather showed the highest level of ellagic acid (160 mg/l). Antioxidant activity varied among the cultivars (18–42 Trolox equivalents antioxidant capacity) and was directly related to the total phenolics in each type of juice.
Keywords :
Cultivar , DPPH , Phenolic compositions , HPLC , antioxidant activity , Pomegranate juice
Journal title :
Food Chemistry
Journal title :
Food Chemistry