نتایج جستجو برای: scenedesmus

تعداد نتایج: 1054  

ژورنال: :اقیانوس شناسی 0
سیما فیاضی sima fayazi بهروز زارعی دارکی behrouz zarei darki جعفر سیف آبادی jafar seyfabadi

در مقاله حاضر اثر ترکیبات سه محیط کشت متفاوت f/2) guillard, trenkenshu, tamiya  بر میزان تراکم سلولی و نرخ رشد ویژه جلبک سبزscenedesmus obliquus kutzing مورد بررسی قرار گرفت. جلبک فوق ­الذکر از جنوب دریای مازندران (ساحل شهر نور) جداسازی و سپس خالص ­سازی شد و در سه تیمار با سه تکرار برای هر کدام کشت داده شد. شمارش سلولی روزانه با سه تکرار به­ وسیله لام هماسیتومتر انجام شد و منحنی رشد جلبک با است...

2017
Tsvetelina Batsalova Ivanka Teneva Plamen Stoyanov

Background: Pollution of aquatic ecosystems with heavy metals leads to decrease of the biodiversity and accumulation of toxicants in the food chain. Species of the genus Scenedesmus are sensitive indicators of environmental changes and have been used for the evaluation of risk factors for contamination of aquatic ecosystems. The microalga Scenedesmus incrassatulus can remove chromium and cadmiu...

Journal: :Journal of Cleaner Production 2022

Availability of cost-effective nutrients for the commercial cultivation microalgae is one major challenges. The present study investigated feasibility primary municipal wastewater (PMWW) collected from a local treatment plant in Minnesota, USA as an alternative to fresh-water growth media towards high-value bioenergy feedstock production. novel strain Scenedesmus sp. DDVG I was cultivated PMWW ...

Journal: :Scientia Plena 2021

Microalgae have great potential to become a new crop that could significantly impact the world's need for food in 21st century. Despite their as ingredient, microalgae social acceptance food. In addition, organoleptic traits, such aroma, are key factors humans accept part of diet. this sense, some requirements culture, species, and environmental conditions extremely important these microorganis...

2013
Hong-Yu Ren Bing-Feng Liu Chao Ma Lei Zhao Nan-Qi Ren

BACKGROUND Biodiesel production from oleaginous microalgae shows great potential as a promising alternative to conventional fossil fuels. Currently, most research focus on algal biomass production with autotrophic cultivation, but this cultivation strategy induces low biomass concentration and it is difficult to be used in large-scale algal biomass production. By contrast, heterotrophic algae a...

Journal: :The Journal of antibiotics 2002
Rajendra P Maskey Ratnakar N Asolkar Edwin Kapaun Irene Wagner-Döbler Hartmut Laatsch

N-Phenylethylamides 1a-1f, were isolated from cultures of three limnic strains GW90a, GW102a and GW73a. Strain GW102a delivered additionally the compound cyclo(isoleucyldehydroalanyl) (2). The structure of these compounds were assigned by a detailed spectral analysis. Due to their potential use as herbicides, various related compounds 1a, 3, 4a and 4b were synthesized. The minimum inhibitory co...

2016
Tao Li Jin Xu Hualian Wu Guanghua Wang Shikun Dai Jiewei Fan Hui He Wenzhou Xiang

Microalgae oil is an optimal feedstock for nutraceutical, pharmaceutical and biodiesel production, but its high levels of chlorophyll limit its large-scale application. To date, few effective approaches have been developed to remove chlorophyll from microalgae oil. The main purpose of this study was to present a preprocessing method of algae oil feedstock (Scenedesmus) to remove chlorophyll by ...

2012
Seok-Cheol Cho Woon-Yong Choi Sung-Ho Oh Choon-Geun Lee Yong-Chang Seo Ji-Seon Kim Chi-Ho Song Ga-Vin Kim Shin-Young Lee Do-Hyung Kang Hyeon-Yong Lee

Marine microalga, Scenedesmus sp., which is known to be suitable for biodiesel production because of its high lipid content, was subjected to the conventional Folch method of lipid extraction combined with high-pressure homogenization pretreatment process at 1200 psi and 35°C. Algal lipid yield was about 24.9% through this process, whereas only 19.8% lipid can be obtained by following a convent...

Journal: :Zeitschrift fur Naturforschung. Section C, Biosciences 1984
H Baumann R Hofmann M Lammers G Schimpff-Weiland H Follmann

Ribonucleoside diphosphate reductases isolated from Escherichia coli, baker's yeast, Ehrlich ascites tumor cells, and unicellular green alga (Scenedesmus obliquus) are inhibited strongly and uniformly by the polymeric triphenylmethane dye, aurintricarboxylic acid. The molecule appears to interact simultaneously with the enzyme's various nucleotide and catalytic (iron-organic radical) sites. Oli...

2012
Elif Neyran SOYLU Arif GÖNÜLOL

Molecular techniques are used today in many areas and have increased the confi dence level of studies. Th e aim of the study was to compare the classical morphological characters of coccoid green algae under fi eld and culture conditions by using modern molecular analysis. To achieve this aim, we fi rst isolated the coccoid green algae from Liman and Cernek lakes. Th e morphological variations ...

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