Study of phenolic compound and antioxidant activity of date fruit as a function of ripening stages and drying process

Journal of Food Science and Technology
F ShahdadiA Daraei Garmakhany

Abstract

Edible parts of two varieties of date palm (Mazfati and Kalute varieties) (Phoenix dactylifera) fruits (DPF) from Iran were analyzed to determine their phenolic compound and antioxidant activities (AA). Antioxidant activity evaluated using typical methods such as 2, 2-diphenyl-1-picrylhydrazyl (DPPH), reducing power and total antioxidant method. The total phenolic content (TPC) of the DPF was measured using Folin-Ciocalteau method. The samples used in this study included samples were gathered at three stages of khalaal, rutab, tamr and dried date from Bam and Jiroft date. The TPC ranged from 2.89 to 4.82, 1074 to 856.4 and 782.8 mg gallic acid equivalents (GAE/100 gdw sample) for khalal, rutab and tamr stage of Mozafati variety, respectively. This work demonstrates the potential of Iranian dates as good sources of antioxidant which can be used as functional food ingredients. The influence of sun drying process and oven drying at temperature ranged 50-80 °C on phenolic compounds and AA of date palm fruits were investigated. Result of drying process showed that TPC and AA varied with temperature and decreased by increase of drying temperature (from 667.3 to 610.5 mg galic acid in sun dried dates of Mozafati and Kaluteh respective...Continue Reading

References

Apr 1, 1995·Free Radical Research·C A Rice-EvansJ B Pridham
Feb 14, 1996·JAMA : the Journal of the American Medical Association·E B RimmW C Willett
Nov 24, 1999·Journal of Agricultural and Food Chemistry·I F Benzie, Y T Szeto
Sep 20, 2000·Journal of Agricultural and Food Chemistry·C Da PortoM C Nicoli
Nov 21, 2001·Journal of Agricultural and Food Chemistry·A Jiménez-EscrigF Saura-Calixto
Jan 24, 2002·Journal of Agricultural and Food Chemistry·Praveen K Vayalil
Oct 31, 2002·Journal of Agricultural and Food Chemistry·Qin Yan ZhuCarl L Keen
Dec 14, 2002·Science·Barbara Demmig-Adams, William W Adams
Oct 7, 2003·Comparative Biochemistry and Physiology. Part A, Molecular & Integrative Physiology·Iris F F Benzie
Jan 7, 2004·Journal of Agricultural and Food Chemistry·H J Damien DormanRaimo Hiltunen
Jun 10, 2004·Journal of Agricultural and Food Chemistry·Xianli WuRonald L Prior
Oct 22, 2004·Nutrition Journal·Michael S Donaldson
Jan 27, 2005·Journal of the American College of Nutrition·Joe A VinsonJohn Proch
May 8, 2014·Journal of Food Science and Technology·Hui GaoWei Cao

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.