Now showing items 1-10 of 25
The development of assays for atractyloside and its localisation in rat tissue.
An extract of the tuber of Callilepis laureola is regarded as the source of a powerful therapeutic agent, known as Impila. Its use is associated with fatal hepatic and renal necrosis, the renal toxin being atractyloside ...
A laboratory scale study to investigate the effects of solids concentration on the efficiency of anaerobic digestion.
With the exceptions of mixing and heating mechanisms, and the recycling of settled solids, no radical changes or improvements have been made to conventional anaerobic digesters treating municipal sewage. These digesters ...
Microbiological investigations into granular sludge from two anaerobic digesters differing in design and industrial effluent purified.
Due to a combination of selection criteria, sludges from upflow anaerobic digesters treating industrial waste waters consist primarily of well-settling, dense agglomerates called granules. Quantification of the component ...
Type IV collagenase and cathepsins L and H : proteinases involved in tumour invasion.
The collagenolytic proteinases, type IV collagenase and cathepsins Land H, have been implicated in tumour invasion and metastasis, by virtue of their degradative action on the extracellular matrix barriers traversed by ...
Bioremediation of oil-contaminated soil : a South African case study.
In 1990, an oil recycling plant situated in Hammarsdale, South Africa, was decommissioned and a decision was taken by management to rehabilitate the site in preparation for resale. The heavily impacted area covered over ...
Development of a laboratory river model to determine the environmental impacts of key xenobiotic compounds.
Microorganisms are increasingly used in toxicological studies to determine potential environmental impacts of xenobiotic compounds. A multi-stage laboratory model was developed to facilitate the examination of environmental ...
Direct transformation of maize (Zea mays L.) tissue using electroporation and particle bombardment, and regeneration of plantlets.
Please open electronic version for Abstract.
Quantification of fungal degradation of pinus patula and eucalyptus grandis.
Previous studies of fungal decay have mainly examined long term effects of wood decay. In contrast, the present work, was designed to quantify fungal degradation of wood during incipient decay. Three facultatively ...
Development of a code of practice for co-disposal to obviate inimical environmental impacts of generated gases and leachates.
Despite its phasing out in numerous countries, such as Germany and the U.S.A., co-disposal of hazardous waste with municipal solid waste continues to be widely practised in South Africa. Co-disposal utilises properties ...
Genetic manipulation of saccharomyces cerevisiae for improved ethanol production from d-xylose.
No abstract available.