TOTAL PHENOLIC CONTENTS AND ANTIRADICAL ACTIVITIES OF POMACES AND THEIR INGREDIENTS OF TWO IRAQI DATE (Phoenix dactylifera L.) CULTIVARS
Journal Title: WORLD JOURNAL PHARMACY AND PHARMACEUTICAL SCIENCE - Year 2017, Vol 6, Issue 3
Abstract
ABSTRACT The objective of the present study was to determine the total phenolic content (TPC) and antioxidant activities of the extracts prepared from the date by-products [pomaces and their ingredients (flesh and seeds)] of two Iraqi date cultivars (Zahdi and Kestawi) using five different solvents. The TPC was measured using Folin–Ciocalteau method; while the antioxidant activity was measured using DPPH-radical scavenging and Ferric reducing/ antioxidant activity (FRAP) assays. The results showed that the type of the solvent used in the extraction plays an important role in determining the TPC and the antioxidant activity of the pomaces and their ingredients (flesh and seeds) of dates. Tow solvents (distilled water containing 1% and 5% of hydrochloric acid) have been used for the first time for preparation of the extracts from the pomaces and their ingredients and these solvents showed superiority in terms of the quantity of the phenolic compounds and the antioxidant activity over the other solvents (distilled water only, 50% ethanol, and sometimes boiling water). The extracts prepared from the entire pomace, flesh and seeds of Zahdi cultivar had significantly higher (P< 0.5) TPC, free radical scavenging activity and higher reducing power than their counterparts from Khestawi cultivar and in all solvents used. Strong and positive correlation was found between the TPC and the antioxidant activity, indicating that the phenolic compounds are the main ingredients contributing to the antioxidant activity of the two Iraqi date cultivars. In conclusion, the results of the present study showed that the determination of TPC and antioxidant activities was dependent on the extracting solvent used and the cultivar of the date and that the date by-products could be considered as a potential source of antioxidants and may be used as alternatives for the synthetic antioxidants in pharmaceutical and food formulations.
Authors and Affiliations
Dr. Abdul-Lateef Molan
Keywords
Related Articles
- EP ID EP617783
- DOI -
- Views 164
- Downloads 0
RECENT ADVANCEMENT IN DRUG DELIVERY SYSTEM FOR BRAIN: AN OVERVIEW
The brain is one of the most complex and magnificent organs in the human body. It is the organ that controls most of the activities of the body. The central nervous system [CNS], efficiently isolated from the systemic ci...
A RETROSPECTIVE STUDY IN LEBANON. THYROID-STIMULATING HORMONE AND ITS POSSIBLE ASSOCIATION WITH SERUM LIPIDS.
Thyroid gland diseases are a public health problem worldwide. Many disorders result from the imbalance in the regulation of thyroid hormones, these ranges from a small goiter to life threatening diseases, like thyroid ca...
MATERNAL AND NEONATAL OUTCOME IN TERM LOW RISK PREGNANCY WITH REDUCED FETAL MOVEMENT
Maternal perception of fetal movement is the most common method to assess fetal wellbeing in most communities today. It performed as unstructured screening to which most pregnant woman depend Significant reduction or sud...
THE EFFECT OF SUBCLINICAL MASTITIS ON PHYSIOCHEMICAL PROPERTIES OF BOVINE MILK IN SHANDI AND BAHRI LOCALITIES, SUDAN
In Sudan clinical and subclinical mastitis leads to a substantial drop in milk production which may reach 20%. Clinical mastitis can be detected by visual examination of both milk and mammary glands as any abnormalities...
IN VITRO REGULATION OF ADIPOGENIC DIFFERENTIATION OF ADIPOSE-DERIVED MESENCHYMAL STEM CELLS
Human adipose tissue acts as a practical supply of mesenchymal stem cells (hAMSCs) compared to other donor sites. So our attention was directed to study the adipogenic differentiation capacity of mesenchymal stem cells d...