In this research the microorganism was initially isolated and selected after evaluation based on COD reduction of cheese whey and biomass production. The selected microorganism was identified as Trichosporon sp. The cultivation conditions of the microorganism were optimized under batch: temperature 30˚C initial pH = 6 aeration speed = 2 ν.ν.m and agitation rate: 800 rpm. Under these conditions,...

In this study, solid-state fermentation of two types of agricultural residues/products for lipase production in a tray-bioreactor was investigated. Rhizopus oryzae was used as a potential fungus strain and two types of agricultural residues including soybean meal and sugarcane bagasse were utilized as substrate. Fermentation was carried out in two different operational conditions: one with cont...

biological characteristics of chrysoperla carnea (stephen.) fed on hyalopterus pruni (goff), brevicoryne brassicae (l.) and aphis pomi (degeer) were studied under laboratory conditions. developmental time of c.carnea on the above mentioned aphids were 24.75, 25.77 and 30.75 days, respectively. preimeainal mortality was 60.69, 43.75 and 63.1%, respectively. female longevity of c.carnea was equal...

the effect of water stress were studied on the agronomic traits related to yield of common bean by planting 32 genotypes in normal and water deficit conditions. these genotypes were evaluated in randomized complete block design with three replications in experimental field of faculty of agriculture, university of tehran, karaj campus in 2007. analysis of variance showed that there were signific...