Hydrogen peroxide scavenging activity of grape (Vitis vinifera) methanolic extract
Journal Title: Food Research - Year 2017, Vol 1, Issue 2
Abstract
Grape is a fruit used since antiquity by man for its therapeutic virtues due to its richness in antioxidant molecules that can replace synthetic antioxidants such as butylated hydroxytoluene (BHT) and butylated hydroxyanisole (BHA) and tert-butylhydroquinone (TBHQ) which are dangerous for human health. Antioxidant activity of methanolic grape extract was evaluated using the hydrogen peroxide (H2O2) scavenging activity. The high percentages of H2O2 scavenging activity were obtained for black varieties (Gros noir and Muscat noir) with 72.86 and 65.72, respectively. The white variety (Victoria) has exhibited a percentage of 38.57 which is close to that obtained for Cardinal 2 (38.64) and higher than that obtained for Cardinal 1 (30.64) which is red variety. These results suggest that grape extracts may serve as a potential source of natural antioxidant for food preservative and pharmaceutical application even black, red or white varieties.
Authors and Affiliations
F. Benmeziane
Influence of gamma irradiation and low temperature storage on the quality and shelf life of squid (Doryteuthis sibogae)
Irradiation is considered as an efficient method for the reduction of microorganisms in food. It has been used to improve the safety and shelf life of food products. The present investigation is aimed at studying the inf...
Stingless bee honey and its potential value: a systematic review
Modern science has found that most traditional practice of using stingless bee honey has great potential as an added value in modern medicine and considered to have a higher medicinal value than other bee species. Howeve...
Nutritional stability of instant Kunun zaki flours produced from millet-malted cowpea and millet-malted soybean during the 3 months storage
The study investigated the changes in crude protein content, moisture, fat, total sugar, and thiobarbituric acid (TBA) value) of instant Kunun zaki powder packaged in polyethylene and stored for 90 days. Instant Kunun za...
Characteristics of crude cellulose from palm (Elaeis oleifera) midrib by sodium hydroxide pretreatment
The purpose of this research was to determine the effect of concentration of sodium hydroxide (NaOH) on physicochemical characteristics of cellulose powder extracted from palm midrib that was underutilized optimally. Cel...
Quality of “urda” obtained after production of montenegrin semi-hard cheese
"Urda" cheese is one of the dairy products with a long tradition of production in mountainous areas in Montenegro. It is mainly used for its own use, fresh and unsalted, but can be kept for a longer period in “kaca” (vat...