Phenolic compounds and antioxidant activity of olive leaves extract from Palestine and their biological activities

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

Different olive leafsamples were collected from different areas of West Bank (north, middle, and south) at different maturation stages (June 2013,October 2013, and January 2014). The crude extracts of olive leaves wereanalyzed for their total phenolic content (TPC), total flavonoid content (TFC), and antioxidant activity (AA) using standard assay methods (Folin-Ciocalteau method for TPC, ferric ion reducing antioxidant power(FRAP) for AA, and colorimetric assay method for TFC). The results revealedthat maturation stage affectedthe composition of the olive leavesunder investigationin terms oftotal phenolic, total flavonoid, andantioxidant activity. Additionally it was found that there is a significant difference in TPC, TFC, and AA of the olive leaves samples collected fromnorth, middle, and south West Bank.Comparing both extraction media (water and acidified water)in terms of TPC, TFC, and AA, there was no clear trend because the differences were significant in all samples,but the higher values alternate between different extraction methods in different samples.Pearson correlation between TPC, TFC, and AA of samples collected from the three areas in West Bank showed that antioxidant activity is significantly correlated with total phenolic contentin both extraction treatments, and weaklycorrelated with total flavonoids. But when all data was pooled, both TPCand TFCwere highly and significantly correlated with AA. It was also foundthatno significant correlationexistedbetween TPCand TFCin any sample under investigation.

روابط وملفات

التعريف والنوع

رقم الوثيقة

0d663ebb-48e3-4e24-8c67-9aa91f71d922

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1696457_1.pdf

بيانات النشر

ترجمة العنوان

معرفة المجموع الكلي لمركبات الفيلون مضادات الأكسدة في مستخلصات أوراق الزيتون من عدة مناطق في فلسطين وفحص فعاليتهم الحيوية

ألقاب المؤلفين

[{"name_ar":"عبد الله عبد الحليم عبد الحميد بشر","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"فؤاد الريماوي","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

English

المصدر والدورية

اسم المصدر

Phenolic compounds and antioxidant activity of olive leaves extract from Palestine and their biological activities

المحتوى والصفحات

عدد الصفحات

0

إشراف وإعداد

الإشراف

فؤاد الريماوي

الإعداد

عبد الله عبد الحليم عبد الحميد بشر

الاقتباسات الببليوغرافية