Pellet growth of Aspergillus terreus ATCC 20542 in submerged batch fermentations in stirred bioreactors was used to examine the effects of agitation (impeller tip speed u(t) of 1.01-2.71 ms(-1)) and aeration regimens (air or an oxygen-enriched mixture containing 80% oxygen and 20% nitrogen by volume) on the fungal pellet morphology, broth rheology and lovastatin production. The agitation speed ...

mojtaba moharami 1 - hossein modirrousta 2       1-assistant professor of  bee pathology, razi vaccine and serum research institute. 2- msc of  microbiology, razi vaccine and serum research institute abstract  american foulbrood (afb), a severe bacterial disease of honeybee brood, caused by the sporeforming bacterium paenibacillus larvae subspecies larvae. the agent, infect and kill larvae and ...

Before the advent of critical isotope-labelling experiments (Eichberg & Dawson, 1965), myelin was believed to be metabolically inert. Evidence soon accumulated which indicated that not only did an active myelin metabolism persist in young adult animals, but was accompanied by a progressive change in chemical composition of the sheath. Typically the myelin isolated by centrifugation from develop...

Effects of 2 pellet diameters for piglets pre- and postweaning on feed intake, BW, and feed-related behavior were studied in 3 experiments. In Exp. 1, 19 litters were provided with pellets of 2 and 12 mm in diameter in a choice-feeding setup from d 4 of lactation onward. From d 4 to 18, piglets preferred the 12-mm diameter pellet over the 2-mm diameter pellet (519 vs. 168 g/pen; P < 0.001). In ...

Introduction: Adipose-derived stem cells (ADSCs) have shown the potentials to differentiate toward the chondrogenic phenotypes with growth factors [1]. But the chondrogenic differentiation with proteomic growth factor needs a prolonged duration of in vitro culture, which would obviously delay the treatments to patients. Growth and differentiation factor 5 (GDF5) is a member of the TGF-beta supe...

T HE volume o’ f literature considering the food habits of owls approaches prodigious proportions (see Earhart and Johnson, 1970). Much of this information has been derived from analysis of the pellets of non-digestible matter which these raptors egest periodically. A number of authors have reviewed this technique and its applications (Craighead and Craighead, 1956; Errington, 1930, 1932; Fishe...

Traditional susceptibility testing of blood cultures requires overnight incubation in order to obtain isolated colonies. Susceptibility results can be reported up to 24 h sooner by using a bacterial pellet from the blood culture broth. This study evaluated the accuracy of direct susceptibility testing from positive ESP blood culture broths by using Sensititre broth microdilution plates compared...

Various investigations have focused on understanding the relationship between mucosal serotonin (5-HT) and colonic motility, however contradictory studies have questioned the importance of this intestinal transmitter. Here we described the fabrication and use of a fecal pellet electrochemical sensor that can be used to simultaneously detect the release of luminal 5-HT and colonic motility. Feca...