نتایج جستجو برای: algae

تعداد نتایج: 19083  

2016
Firozeh Saberzadeh Sarvestani Hossein Esmaeili Bahman Ramavandi

In this paper, a new and facile approach for molybdate loading in the brown algae of Sargassum angustifolium is introduced. The molybdate ions were entered into the algae body during a short cultivation to produce algae-Mo as a novel adsorbent for eliminating phosphate ions from synthetic and real wastewaters. Results of the surface analysis showed that molybdate loading onto the algae was succ...

Journal: :Bioresource technology 2012
Martin Cerff Michael Morweiser Robert Dillschneider Aymeé Michel Katharina Menzel Clemens Posten

In this study, the focus is on magnetic separation of fresh water algae Chlamydomonas reinhardtii and Chlorella vulgaris as well as marine algae Phaeodactylum tricornutum and Nannochloropsis salina by means of silica-coated magnetic particles. Due to their small size and low biomass concentrations, harvesting algae by conventional methods is often inefficient and cost-consuming. Magnetic separa...

2016
Beuy Joob Viroj Wiwanitkti

There are many kinds of marine algae. Several medical advantages of algae is confirmed[1-11]. Of several species, Laminaria species is a group of marine algae that is generally known as sea brown algae. It can be seen around the world and the coastal people have known it for years. Generally, the algae can be seen at 25 to 100 feet depth level. This algae has been used as food source for a long...

2012
Andrea Cantu Jolene Kokroko Jamie Brett Megan Grove

A major threat to coral reefs today is the phase shift to algaldominated reefs. Algae can stress corals by overgrowing and smothering them, blocking sunlight needed for photosynthesis, and enhancing microbial growth. However, the mechanisms underlying algae-coral interactions are still poorly understood. This study examined how the tumbleweed algae Dictyota sp. affects the photophysiology of th...

Journal: :international journal of environmental research 2011
m. fallahi g. azari takami g.h. vossoughi a. mashinchian n. mehdipour

currently, white fish or kutum rutilus frisii is considered to be a good candidate for commercial aquaculture. however, little information is available regarding the nutritional requirement of this fish fry. experiments were conducted to examine the effects daphnia magna as live food cultured on two freshwater green algae, chlorella sp. and scenedesmus obliquus enriched with different b group v...

Journal: :Current Biology 2011
Heroen Verbruggen Aline Tribollet

and an increased chlorophyll b to chlorophyll a ratio for better light capture in low light. Furthermore, an Ostreobium strain living in a coral skeleton, where nearly all of the red light has been captured by the zooxanthellae in the coral tissue, has been shown to have modified chlorophyll with a spectrum shifted towards far-red wavelengths. As zooxanthellae cannot use far-red light, more of ...

Journal: :The Journal of nutrition 2007
Maria N García-Casal Ana C Pereira Irene Leets José Ramírez Maria F Quiroga

Searching for economical, nonconventional sources of iron is important in underdeveloped countries to combat iron deficiency and anemia. Our objective was to study iron, vitamin C, and phytic acid composition and also iron bioavailability from 4 species of marine algae included in a rice-based meal. Marine algae (Ulva sp, Sargassum sp, Porphyra sp, and Gracilariopsis sp) were analyzed for month...

ژورنال: :مجله گیاهشناسی ایران 1999
جلوه سهرابی پور رضا ربیعی

153 گونه جلبک از سواحل خلیج فارس و دریایی عمان لیست می شود. که 87 گونه آن (48 رودوفیت، 16 فئوفیت، 18 کلروفیت، 3 اگزوانتوفیت و 2 سیانوفیت) گزارش های جدیدی برای فلور جلبکی ایران می باشند. در 16 مورد نیز نام برخی از گونه های که در گزارش هایی قبلی آمده اند تصحیح شده است.

Journal: :applied biotechnology reports 0
ali mohammad latifi applied biotechnology research center, baqiyatallah university of medical sciences, tehran, iran ehsan sadegh nejad hamid babavalian

the alginate was extracted with six different methods from iran south seacoast algae, sargassum sp, and the percentage yield of alginate was determined. we divided our methods to two groups including acidic extraction and non-acidic. in acidic methods, hcl and h 2 so 4 were used as a detergent in extraction process and cacl 2 was exerted in non-acidic treatments. all treatments compared with ea...

Journal: :American journal of botany 2004
Louise A Lewis Richard M McCourt

Over the past two decades, molecular phylogenetic data have allowed evaluations of hypotheses on the evolution of green algae based on vegetative morphological and ultrastructural characters. Higher taxa are now generally recognized on the basis of ultrastructural characters. Molecular analyses have mostly employed primarily nuclear small subunit rDNA (18S) and plastid rbcL data, as well as dat...

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