HPLC/DAD/MS and Antioxidant Activity of Isoflavone-Based Food Supplements
نویسندگان
چکیده
منابع مشابه
antioxidant and antimicrobial activity of allium jesdianum extract
چکیده بررسی فعالیت ضد اکسیدانی و ضدمیکروبی عصاره گیاه بن سرخ (allium jesdianum) به کوشش: زهرا مقیمی هدف از این تحقیق بررسی میزان ترکیبات فنولی کل، ترکیبات فلاوونوئیدی کل، فعالیت ضداکسیدانی و ضدمیکروبی عصاره ی گیاه تازه و خشک بن سرخ بود. استخراج عصاره به روش های غوطه وری، استفاده از همزن مغناطیسی، دستگاه مایکروویو، امواج فراصوت و گرمادهی مقاومتی و با استفاده از متانول، اتانول و آب به عنوا...
detection of volatile compounds of medicinal plants with some nano-sorbents using modified or new methodologies and investigation of antioxidant activity of their methanolic extracts
in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...
Assessment of isoflavone aglycones variability in soy food supplements using a validated HPLC-UV method
BACKGROUND AND AIMS Soy supplements are often recommended in the management of menopause symptoms. The declared content of soy supplements is commonly expressed as total isoflavones per dosage form. Given that soy isoflavones have different estrogenic potencies, pharmacokinetics and metabolism, the aim of this study was to evaluate the total isoflavone content and the aglycone profile of seven ...
متن کاملHow Safe are Antioxidant Food Supplements Containing Selenium?
Three antioxidant food supplements were analysed for selenium (Se) and its species. Sample A main constituents were coenzyme Q10, selenium (as medical yeast), vitamin C and natural vitamin E. The product is used for maintaining health and strengthening physical and mental abilities, stimulating the immune system, inhibiting the development of atherosclerosis, strengthening a weakened heart. Sam...
متن کاملAntioxidant supplements and mortality.
To the Editor: Based on their meta-analysis of antioxidant supplementation trials, Dr Bjelakovic and colleagues 1 conclude that some of the intervention nutrients appeared to be associated with increased mortality. Particular aspects of their approach, analysis, and reported findings may have led to incomplete or biased determinations of the real effect of such nutrients in various populations....
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Natural Product Communications
سال: 2010
ISSN: 1934-578X,1555-9475
DOI: 10.1177/1934578x1000501115