Phytochemical, minerals and free radical scavenging profiles of Phoenix dactilyfera L. seed extract

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• 作者：Abiola M. Adeosun ; M.Sc^a ; ^{albaraat2020@gmail.com" class="auth_mail" title="E-mail the corresponding author} ; Sarah O. Oni ; M.Sc^b ; Osasenaga M. Ighodaro ; PhD^a ; Okikiola H. Durosinlorun ; B.Sc^a ; Omotayo M. Oyedele ; B.Sc^a
• 关键词：Antioxidants ; Date seeds ; Free radicals ; Minerals ; Phytochemicals
• 刊名：Journal of Taibah University Medical Sciences
• 出版年：2016
• 出版时间：February 2016
• 年：2016
• 卷：11
• 期：1
• 页码：1-6
• 全文大小：1247 K

文摘

Phoenix dactilyfera L (date palm) seeds are used in traditional medicine for the treatment of several ailments. These seeds have been shown to lower the risk of cancer and some cardiovascular conditions as well as to improve the functionality and integrity of the immune system. On the basis of established associations between the composition of plants and their therapeutic or biological effects, this study sought to investigate the phytochemical, mineral, and antioxidant profiles of the date palm seed.

Methods

The phytochemical and mineral compositions as well as the free radical scavenging capacity of the date palm seed were evaluated using standard protocols.

Results

The alkaloids, flavonoids, anthraquinones, saponins, terpenoids, and tannins contents (mg/100 g dry weight) were 102.27 Atropine equivalents (ATE), 2471.23 Quercetin equivalents (QE), 334.93 Alizarin equivalents (ALE), 124.41, 19.47, and 133.20, respectively. The sodium, potassium, calcium, magnesium, iron, phosphorus, and zinc contents (mg/100 g dry weight) were 0.67, 78.12, 18.20, 0.48, 0.82, 19.32, and 0.25, respectively. The scavenging activities (EC₅₀) of the seed against 1,1-diphenyl-2-picryl hydrazyl (DPPH) and superoxide dismutase (SOD)-generated free radicals were 10.21 mg/mL and 1.67 mg/mL respectively.

Conclusions

This study concluded that the date palm seed is rich in flavonoids, a group of polyphenolic antioxidants that are apparently responsible for the appreciable free radical scavenging effects. The polyphenolic compounds present in the investigated date seed may account for its therapeutic relevance in traditional medicines.