کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4514563 1322214 2011 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Antioxidant activity and phenolic composition of the medicinal and edible halophyte Mesembryanthemum edule L.
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
Antioxidant activity and phenolic composition of the medicinal and edible halophyte Mesembryanthemum edule L.
چکیده انگلیسی

Mesembryanthemum edule L. (sourfig, Aizoaceae) has long been used as food and in traditional medicine. This study was intended to characterize the antioxidant properties and the phenolic compounds of M. edule leaf, stem and root. The approach consisted to evaluate these organs for their antioxidant activities through several in vitro tests, to determine tissue contents in total phenolics, flavonoids and proanthocyanidins and to establish the phenolic composition through RP-HPLC analysis. All studied organs showed a high antioxidant activity as compared to positive control BHT, with maximal efficiency for stems followed by leaves and roots. The highest polyphenolic levels were found in stems and leaves (86.5 and 68.7 mg GAE g−1 DW, respectively), suggesting that their strong antioxidant activity could be attributed to these phytochemicals. The HPLC analysis revealed that the main phenolic compounds were quercitrin and avicularin (1.4 and 1.15 mg g−1 DW, respectively) in the leaves, while catechin and procyanidin B2 (1.66 and 1.54 mg g−1 DW, respectively) were the most abundant phenolics in the stems. Overall, the strong antioxidant activity and richness of M. edule aerial tissues suggest that it could be advantageously used as a functional or nutraceutical food, to prevent or moderate oxidative stress-related diseases.


► M. edule leaves and stems exhibited significant antioxidant activities as compared to the positive control.
► M. edule contains important polyphenol content as compared to other medicinal plants.
► Our results confirm the potential of M. edule shoots as active phytochemical source.
► M. edule can be used as a powerful antioxidant herbal.
► The DPn indicate that M. edule procyanidins might be used as substituted antioxidants.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Industrial Crops and Products - Volume 34, Issue 1, July 2011, Pages 1066–1071
نویسندگان
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