نتایج جستجو برای: میکروجلبک chlorella volgaris
تعداد نتایج: 4161 فیلتر نتایج به سال:
Since the discovery of the Hill reaction (9, 10, 11, 12), there has accumulated considerable evidence (5, 7, 10, 14, 15, 16, 17, 20) indicating that it is indeed a partial reaction of photosynthesis. And in particular there is evidence that the normally limiting dark reactions of photosynthesis and the Hill reaction are identical (5, 7). Numerous substances inhibitory to photosynthesis and the ...
The genus Chlorella was the first microalga to be massively cultured as food, feed and as a source of nutraceuticals. More recently, some species have been suggested as candidates for biodiesel production. One of the most difficult tasks in studying the systematics of green coccoids is the identification of species assigned to the genus Chlorella. In the context of several projects carried out ...
Symbiosis of green algae with protozoa and invertebrates has been studied for more than 100 years. Endosymbiotic green algae are widely distributed in ciliates (e.g. Paramecium, Stentor, Climacostomum, Coleps, Euplotes), heliozoa (e.g. Acanthocystis) and invertebrates (e.g. Hydra, Spongilla), and have traditionally been identified as named or unnamed species of Chlorella Beij. or Zoochlorella K...
The traditional green algal genus Chlorella, which comprised coccoid algae surrounded by a smooth cell wall and reproducing solely by autosporulation, has proved to be polyphyletic and extremely diverse in phylogenetic terms. We studied a new subaerial Chlorella-like strain CAUP H7901 and morphological, ultrastructural, and molecular phylogenetic investigations indicated that it represents a ne...
Most animal–microbe symbiotic interactions must be advantageous to the host and provide nutritional benefits to the endosymbiont. When the host provides nutrients, it can gain the capacity to control the interaction, promote self-growth, and increase its fitness. Chlorella-like green algae engage in symbiotic relationships with certain protozoans, a partnership that significantly impacts the ph...
Hard-shell case: Using a (RKK)4 D8 peptide allows mineralization to occur under cytocompatible conditions. Thus individual Chlorella cells could be encapsulated within a SiO2 -TiO2 nanoshell with high cell viability (87 %). The encapsulated Chlorella showed an almost threefold increase in their thermo-tolerance after 2 h at 45 °C.
The aim of this study was to evaluate the ability of microalgae Spirulina platensis and Chlorella vulgaris to remove nitrate and phosphate in aqueous solutions. Spirulina platensis and Chlorella vulgar is microalgae was collected in 1000 ml of municipal water and KNO3, K2HPO4 was added as sources of nitrate and phosphate in th...
The first identification of a sterol in Chlorella was by Klosty and Bergmann (5) in 1952 when they isolated ergosterol from Chlorella pyrenoidosa. More recently, Otsuka (6) identified ergosterol and a A5 sterol in Chlorella ellipsoidea. Ergosterol was the principal component of the mixture. Recent work in this laboratory has been centered about the identification of sterols from other species o...
اقتصادی و تجاری شدن تولید سوخت زیستی از میکروجلبک ها نیازمند حل برخی مشکل های پیش روی آن می باشد. یکی از کلیدی ترین و پرهزینه ترین مرحله های آن، جداسازی میکروجلبک از محیط کشت می باشد.در این پژوهش ابتدا به بررسی این مشکل و ارایه روش های گوناگون جداسازی زیست توده از محیط کشت پرداخته شد و سپس از بین روش ها به دلیل سادگی و قابلیت صنعتی شدن، روش انعقاد ـ فلوکولاسیون الکتریکی (ec) برای رفع مشکل انتخا...
مقدمه: نگرانی در مورد بحران انرژی همراه با تغییرات آب و هوایی و افزایش گرمایش جهانی، باعث توجه بیشتر به تولید انرژی بیودیزل از میکروجلبکها شده است. رشد سلولی، تولید بیوماس و تجمع لیپید در میکروجلبک از عوامل تعیین کننده بازدهی اقتصادی بیودیزل بوده و هدف از این مطالعه ، بررسی نقش محیط کشت در افزایش بازدهی عوامل مذکور می باشد. روش بررسی: میکروجلبک نانوکلروپسیس اوکولاتا درچهار محیط walne ، f/2 ، ...
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