کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8882218 | 1625140 | 2018 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The effects of seasonal debarking on physical structure, polyphenolic content and antibacterial and antioxidant activities of Sclerocarya birrea in the Nylsvley nature reserve
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کلمات کلیدی
μLμg/mlNa2CO3Sclerocarya birreaMETERCTFCAlCl3ATCCintTFCTPCMICTCAIC50FeCl3DPPH2,2-diphenyl-1-picrylhydrazyl - 2،2-دی فینیل-1-پریکیل هیدرازیل50% inhibitory concentration - 50٪ غلظت مهاریDMSO - DMSO°C - ° CPhenolic acids - اسیدهای فنولیکERP - برنامه ریزی منابع سازمانUltra violet - بسیار بنفشanalysis of variance - تحلیل واریانسANOVA - تحلیل واریانس Analysis of varianceSeasonal variation - تنوع فصلیMin - حداقلMinimum inhibitory concentration - حداقل غلظت مهاریdegree celsius - درجه سلسیوسPercentage - درصدminutes - دقایقDimethyl sulfoxide - دیمتیل سولفواکسیدHour - ساعتPotassium ferricyanide - فروسیانید پتاسیمBiological activities - فعالیت های بیولوژیکیFlavonoids - فلاونوئیدهاTotal phenolic content - محتوای فنلی کلMethicillin resistant - مقاوم به متیسیلینTotal flavonoid content - مقدار کل فلاونوئیدMolar - مولارmilliliter - میلی لیترMicroliter - میکرولیترnanometer - نانومترCRP - پروتئین واکنشی سی یا سی. آر. پی Sodium carbonate - کربنات سدیمAluminum chloride - کلرید آلومینیومferric chloride - کلرید آهنkilometer - کیلومترGram - گرام
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم زراعت و اصلاح نباتات
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The effects of seasonal debarking on physical structure, polyphenolic content and antibacterial and antioxidant activities of Sclerocarya birrea in the Nylsvley nature reserve The effects of seasonal debarking on physical structure, polyphenolic content and antibacterial and antioxidant activities of Sclerocarya birrea in the Nylsvley nature reserve](/preview/png/8882218.png)
چکیده انگلیسی
Continuous debarking results in the death of medicinal trees. The aim of this study was to evaluate the effects of seasonal debarking on the physical structure, polyphenolic content and biological activities of Sclerocarya birrea at Nylsvley Nature Reserve in Limpopo Province, South Africa. Bark samples were collected from trees during the autumn, winter, spring and summer seasons. During each visit the created scars were examined for any physical changes. The effect of debarking on the polyphenolic content, antioxidant and antibacterial activities of methanol extracts of the powdered bark samples was determined. Seasonal debarking resulted in infestation by insects, reduction in callus formation and decay of stems. The results also indicated that seasonal debarking did not affect the polyphenolic concentration. However, debarking significantly (pâ¯<â¯0.05) increased the DPPH antioxidant activity of the experimental trees (IC50 21.30â¯Â±â¯0.62â¯Î¼g/mL) compared to the control (IC50 46.0â¯Â±â¯0.8â¯Î¼g/mL). Seasonal debarking also increased the antibacterial activities of the experimental trees compared to the control against the selected pathogens. A further relatively long-term study is required to conclusively establish the effect of seasonal debarking on the bioactive constituents.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: South African Journal of Botany - Volume 118, September 2018, Pages 138-143
Journal: South African Journal of Botany - Volume 118, September 2018, Pages 138-143
نویسندگان
M. Nndwammbi, M.H. Ligavha-Mbelengwa, C.P. Anokwuru, I.D.I. Ramaite,