نتایج جستجو برای: Sargassum Angostifolium

تعداد نتایج: 1681  

Journal: :iranian journal of chemistry and chemical engineering 0
maryam ghaemi iranian national institute of oceanography and atmospheric sciences, tehran, iran sara gholamipour iranian national institute of oceanography and atmospheric sciences, tehran, i.r. iran

a simple, fast and one-pot synthesis procedure based on the bioreduction ability of an algal extract solution has been developed to produce silver nanoparticles (agnps). we focus especially on the influencing factors of agnps formation. the effects of various factors like ph, temperature, the concentration of metal ions and alga, the volume ratio of silver nitrate solution to alga extract, reac...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم و فنون دریایی خرمشهر - دانشکده علوم دریایی و اقیانوسی (شعبه خرمشهر) 1391

در سال های اخیر، به دلیل کاربرد بالقوه بسته بندی های زیست تخریب پذیر، پژوهش درباره ی فیلم های خوراکی با اقبال چشمگیری مواجه شده است. در این پژوهش، سدیم آلژینات از جلبک قهوه ای sargassum angostifolium، جمع آوری شده از سواحل خلیج فارس (استان بوشهر)، استخراج گردید و ساختار و ویژگی های فیزیکوشیمیایی آن بررسی شد. استخراج آلژینات در شرایط بهینه سازی شده با دمای c?50 و به مدت 3 ساعت (سه تکرار) انجام ش...

بیماری دیابت نوع دو، ناشی از اختلال در عملکرد و ترشح انسولین و به دنبال آن افزایش میزان قند خون است که به سومین عامل مرگ و میر در جهان تبدیل شده‌است. مشتقات فعال اکسیژن از جمله عوامل آسیب و مرگ برنامه‌ریزی شده سلولی و دیابت می-باشند. اثرات جانبی مخرب مصرف داروهای سنتزی بر بیماران، تحقیقات را به سمت داروهای طبیعی متمایل کرده‌است. در این تحقیق، فعالیت آنتی‌دیابتی و آنتی‌اکسیدانی سه عصاره متانولی،...

A simple, fast and one-pot synthesis procedure based on the bioreduction ability of an algal extract solution has been developed to produce silver nanoparticles (AgNPs). We focus especially on the influencing factors of AgNPs formation. The effects of various factors like pH, temperature, the concentration of metal ions and alga, the volume ratio of silver nitrate solution to ...

2014
Dilys Zhang Tim M. Glasby Peter J. Ralph Paul E. Gribben

Like invasive macrophytes, some native macrophytes are spreading rapidly with consequences for community structure. There is evidence that the native alga Caulerpa filiformis is spreading along intertidal rocky shores in New South Wales, Australia, seemingly at the expense of native Sargassum spp. We experimentally investigated the role physical disturbance plays in the spread of C. filiformis ...

2013
Sean P. Powers Frank J. Hernandez Robert H. Condon J. Marcus Drymon Christopher M. Free

The pelagic brown alga Sargassum forms an oasis of biodiversity and productivity in an otherwise featureless ocean surface. The vast pool of oil resulting from the Deepwater Horizon oil spill came into contact with a large portion of the Gulf of Mexico's floating Sargassum mats. Aerial surveys performed during and after the oil spill show compelling evidence of loss and subsequent recovery of S...

Journal: :The British journal of nutrition 2009
Maria N García-Casal José Ramírez Irene Leets Ana C Pereira Maria F Quiroga

Marine algae are easily produced and are good sources of Fe. If this Fe is bioavailable, algae consumption could help to combat Fe deficiency and anaemia worldwide. The objective of the present study was to evaluate Fe bioavailability, polyphenol content and antioxidant capacity from three species of marine algae distributed worldwide. A total of eighty-three subjects received maize- or wheat-b...

2012
Chae-Won Lee Ji-Sook Han

This study was designed to investigate whether Sargassum ringgoldianum extract may inhibit α-glucosidase and α-amylase activities, and alleviate postprandial hyperglycemia in streptozotocin-induced diabetic mice. The IC50 values of Sargassum ringgoldianum extract against α-glucosidase and α-amylase were 0.12 mg/mL and 0.18 mg/mL, respectively, which evidenced higher activities than those of aca...

2015
D. Sujatha Kiranpal Singh Mursalin Vohra K. Vijay Kumar S. Sunitha

PURPOSE Urolithiasis is a common urological disorder responsible for serious human affliction and cost to the society with a high recurrence rate. The aim of the present study was to systematically evaluate the phlorotannin rich extract of Sargassum wightii using suitable in vitro and in vivo models to provide scientific evidence for its antilithiatic activity. MATERIALS AND METHODS To explor...

2017
DHANISH JOSEPH ARYA VENUGOPAL

Sargassum species are brown macroalgae found in shallow marine meadows. These are nutritious and rich source of several bioactive compounds. These isolated active compounds exhibit diverse biological activities like antioxidant, antiinflammatory, antipyretic, analgesic, antiviral, antidiabetic, hepatoprotective, anti-obesity, cholinesterase inhibitory activities etc. This makes the Sargassum sp...

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