Evaluation offunctional properties of phenolic compounds extracted from date palm (Phoenix dactylifera L.) seed in comparison to green tea extract on viability of probiotic bacteriaAbstract
Subject Areas : Industrial Food Microbiology
مهرنوش تدینی
1
,
Mozhgan Moghadam
2
,
Ali Fazlara
3
1 - Department of Food Science and Technology,Ahvaz Branch, Islamic Azad University of Ahvaz
2 - Department of food science and technology, Ahvaz Branch,Islamic Azad University, Ahvaz, Iran.
3 - Department of Food Science and Technology, Ahvaz Branch, Islamic Azad University, Ahvaz, Iran.
Keywords: Phenolic compounds, Antioxidant property, Date palm seeds extract, Green tea extract,
Abstract :
Phenolic compounds with antioxidant and antiradical properties have important role in food preservation and human health. Phenolic compounds are important compounds ofdate palm seeds usually show high antioxidant activity. In this study, the effect of phenolic compounds extracted from date palm seeds on probiotic bacteria is studied, the total amount of ethanol extract date palm seeds, using the Folin-Ciocateu reagent and the antioxidant activity of the extract using the DPPH reagent was evaluated against BHT. Prebiotic effect of phenolic compounds of date palm seeds on growth and survival of probiotic bacteria Lactobacillus plantarum, (ATCC14917) in three concentrations 0.1, 0.5, 1 % compared with green tea extract and extract antimicrobial effect against Staphylococcus aureus and E.coli were performed at 0.5, 1 %.The total dry extract ethanol date palm seeds phenolic compounds was found 6.62 % on galic acid. Free radical scaverning rate 48.27 %, IC50for ethanol palm seeds183.73 μg/mL was calculated. According to the HPLC output, which confirm high amounts of Gallic acid and Catechin as phenolic compounds in from date palm seed. The results showed that phenolic compounds extracted from date palm seeds has increased the viability of probiotic bacteria in the level 0.5, 1% and some what have antibacterial effect on the concentration of 1% on bactria Staphylococcus aureus. Acording to the results, phenolic compounds extracted from date palm seeds showed good prebiotic functionality.
