Results 81 to 90 of about 261 (128)

Biosorption of radiocaesium by Rhizopus arrhizus fungal biomass

Journal of Hazardous Materials Advances
Marek Hupian, Eva Viglašová, Helena Švajdlenková, Martin Daňo, Michal Galamboš   +4 more
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The Exocellular Lipase from Rhizopus Arrhizus

Scandinavian Journal of Gastroenterology, 1971
The mode of action of the exocellular lipase of the mold Rhizopus arrhizus is very similar to pancreatic lipase as regards positional specificity and interaction with bile salt. It is quite stable at acid pH values and may be considered as a source for lipase in substitution therapy.
B Borgström, A Noma
exaly   +3 more sources

Mechanism of aluminum interference on uranium biosorption by Rhizopus arrhizus

Biotechnology and Bioengineering, 1997
Uranium competitive uptake experiments by Rhizopus arrhizus were carried out at three different solution pH levels and in the presence of different concentrations of competing aluminum ions in order to examine the competing ion effect. The coion effect became more pronounced as the coion concentration in solution and pH level increased.
Marios Tsezos
exaly   +3 more sources

Hemolytic activity of Rhizopus nigricans and Rhizopus arrhizus

Mycopathologia et Mycologia Applicata, 1970
Rhizopus nigricans andR. arrhizus were cultured in modified Sabouraud broth and synthetic dextrose-glutamate medium for periods of two to eight weeks. The culture filtrates and extracts of fungous mats were examined for the presence ofin vitro hemolytic activity.
A, Fujiwara, J W, Landau, V D, Newcomer
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Biosorption of radionuclides by Rhizopus arrhizus

Biotechnology Letters, 1998
The sorption of various radionuclides viz. 233U, 239Pu, 241Am, 144Ce, 147Pm, 152+154Eu and 95Zr from aqueous nitrate medium has been studied using biomass Rhizopus arrhizus. The biosorption of 233U and 239Pu was found to be maximum at pH 6-7 whereas for other trivalent actinides and fission products viz.
P.S. Dhami, V. Gopalakrishnan, R. Kannan, A. Ramanujam, Neeta Salvi, S.R. Udupa   +5 more
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Effects of local anaesthetics on the lipase of Rhizopus arrhizus

Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1976
1. A number of local anaesthetics were shown to inhibit the hydrolytic activity of a partially purified lipase from the mold Rhizopus arrhizur towards both triacylglycerol and phospholipid substrates. 2. Irrespective of whether triacylglycerol or phospholipid substrates were used, the inhibition was uncompetitive with respect to the substrate ...
J R, Traynor, H, Kunze
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The mechanism of uranium biosorption by Rhizopus arrhizus

Biotechnology and Bioengineering, 1982
AbstractBiosorption of elements is a little understood phenomenon exhibited by some types of even nonliving microbial biomass. A common fungus Rhizopus arrhizus has been reported to take up uranium from aqueous solutions to the extent of 180 mg U6+/g.
M, Tsezos, B, Volesky
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Further studies on the exocellular lipase of Rhizopus arrhizus

Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism, 1972
Abstract Some properties of an exocellular lipase (glycerol-ester hydrolase, EC 3.1.1.3) of the mould Rhizopus arrhizus have been investigated and compared with the wellknown properties of the pancreatic enzyme. 1. 1. Both enzymes are able to hydrolyze micelles of short-chain triglycerides as well as emulsified particles.
M, Sĕmĕriva, C, Dufour
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The mechanism of thorium biosorption by Rhizopus arrhizus

Biotechnology and Bioengineering, 1982
AbstractInactive cells of Rhizopus arrhizus have been documented to exhibit a high thorium biosorptive uptake (170 mg/g) from aqueous solutions. The mechanism of thorium sequestering by this biomass type was investigated following the same method as for the uranium biosorption mechanism.
M, Tsezos, B, Volesky
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Lipase production by immobilised Rhizopus arrhizus

Process Biochemistry, 2000
Abstract Immobilisation of Rhizopus arrhizus cells on a solid support (polyurethane foam) for lipase production has been explored. Lipase biosynthesis was repressed at a high glucose level. Maximum productivity was recorded at 1 g l−1 glucose concentration. The inclusion of 0.5 g l−1 corn oil (as an inducer) in the fermentation medium resulted in 2.5-
Murat Elibol, Dursun Özer
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