Antioxidant properties of Helichrysum pseudoplicatum Nab
Publish place: Pharmaceutical and Biomedical Research، Vol: 1، Issue: 1
Publish Year: 1393
نوع سند: مقاله ژورنالی
زبان: English
View: 82
This Paper With 7 Page And PDF Format Ready To Download
- Certificate
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
JR_PBRE-1-1_005
تاریخ نمایه سازی: 10 دی 1402
Abstract:
The genus Helichrysum (Asteraceae) is comprised of approximately ۵۰۰-۶۰۰ species and used for the treatment of a variety of pathological conditions in folk medicine in many countries. In this study, antioxidant activities of aerial parts of H. pseudoplicatum were investigated employing various in vitro assay systems, i.e. ۲,۲-diphenyl-۱-picrylhydrazyl (DPPH) and nitric oxide radical scavenging, reducing power and hydrogen peroxide scavenging. IC۵۰ for DPPH radical-scavenging activity was ۴۳۸.۹ ± ۱۵.۶ µg/ml. The extract exhibited good reducing power at ۲۵ - ۴۰۰ µg/ml but was not comparable with that of vitamin C. The extract showed good nitric oxide-scavenging activity. IC۵۰ was ۴۷۴.۳ ± ۱۱.۸ µg/ml. It was capable of scavenging hydrogen peroxide in a concentration dependent manner. It showed good activity. Its IC۵۰ was ۱۵۹.۸ ± ۸.۲ µg/ml. The IC۵۰ values for ascorbic acid and BHA were ۲۱.۴ and ۵۲.۰ µg/ml, respectively. The total amount of phenolic compounds in the extract was determined as gallic acid equivalents (۲۲.۷ ± ۳.۱ mg/g of extract) and total flavonoid contents were calculated as quercetin equivalents (۹.۶ ± ۱.۳ mg/g of extract) from a calibration curve. This plant contained low amount of total flavonoids and phenolic compounds. Its moderate antioxidant activities may be attributed to its low levels of phenols and flavonoids.
Authors
Mohammad Ali Ebrahimzadeh
Pharmaceutical Sciences Research Center, School of Pharmacy, Mazandaran University of Medical Sciences, Sari, Iran.
Afsaneh Tavassoli
Research Center of Natural Resources of Mazandaran, Sari, Iran.
مراجع و منابع این Paper:
لیست زیر مراجع و منابع استفاده شده در این Paper را نمایش می دهد. این مراجع به صورت کاملا ماشینی و بر اساس هوش مصنوعی استخراج شده اند و لذا ممکن است دارای اشکالاتی باشند که به مرور زمان دقت استخراج این محتوا افزایش می یابد. مراجعی که مقالات مربوط به آنها در سیویلیکا نمایه شده و پیدا شده اند، به خود Paper لینک شده اند :