Browsing Research articles (Dept of Biological Sciences) by Title
Now showing items 39-58 of 78
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Incidence and antimicrobial susceptibility testing of Listeria monocytogenes in four street-food vending sites in Gaborone, Botswana
(Applied Zoologists Research Association (AZRA), http://www.azra-india.com/, 2016-02)Listeria monocytogenes is widely distributed in nature and a significant foodborne pathogen. Where outbreaks of listeriosis have occurred, high fatalities ensue especially among the immune suppressed, pregnant women and ... -
The influence of range fire on soil fungi, microbial activity and soil properties along the Boro route of the Okavango Delta
(Global Science Books, http://www.globalsciencebooks.info/, 2011)The influence of burning on soil microbial dehydrogenase activity, nitrogen content and fungal population along the Boro route in the Okavango Delta was assessed in the flood and dry seasons. Soil samples from the burnt ... -
Influence of seasonal flooding on soil total nitrogen, organic phosphorus and microbial populations in the Okavango Delta, Botswana
(Journal of Arid Environments. http://www.elsevier.com/wps/find/journaldescription.cws_home/622855/description#description, 2003)The effect of flooding on soil total nitrogen, phosphorus and microbial population in different vegetation zones (floodplain, island and woodland) and profile depth (0?1, 0?5, 2?0, 3?0, 4?0 and 5?0m) of the Okavango ... -
Inhibitory response of Raphanus sativus on lipid peroxidation in albino rats
(Oxford University Press, Oxford Journals; http://ecam.oxfordjournals.org/, 2008-03)In the present study, inhibitory effect of the methanol extract of Raphanus sativus root on lipid peroxidation has been carried out in normal rats. Graded doses of methanol extract of root of the plant (40, 80 and 120 ... -
Insect infestation of biltong, a salted dried meat product consumed in Botswana
(Applied Zoologists Research Association (AZRA), http://www.azra-india.com/journal.html, 2017)A survey of home and commercial biltong in Botswana showed that hidden infestation by insects undetected before storage affects the quality of biltong. Seventy-nine (79) samples; made up of sixty-one (61) commercial biltong ... -
Investigating evidence for UV-B induced mutagenesis in dimorphotheca sinuata using the 18S rDNA and rbcL gene sequences
(American-Eurasian Network for Scientific Information. http://www.aensi.org/aeb_online.html, 2008)The nuclear 18S rDNA and chloroplast encoded rbcL gene sequences were used to investigate the evidence of residual UV-B induced mutagenesis in Dimorphotheca sinuata plants. The probes were generated by the polymerase chain ... -
Ionic and water relations of Sesuvium portulacastrum (L.)
(Academic Journals, http://www.academicjournals.org/, 2010)The aim of this study was to assess the growth response of Sesuvium portulacastrum (L.) (a halophyte) to various NaCl concentrations and hence determine how it is adapted to grow optimally under saline conditions. S. ... -
Isolation and characterization of Lactic Acid Bacteria and indicator microorganisms of food safety from Omaere, a traditionally fermented milk product in Botswana
(University of Botswana, www.ub.bw, 2018)Botswana has many traditional foods and beverages that are prepared by means of natural/spontaneous fermentation. The traditional preparation of these foods is for the most part largely undocumented and the microorganisms ... -
Isolation of cultivable halophilic Bacillus sp. from the Makgadikgadi Salt Pans in Botswana
(Global Science Books, http://www.globalsciencebooks.info/, 2011)Halophilic bacteria from the Makgadikgadi salt pans in north central Botswana were isolated using culture-dependent methods. Polymerase chain reaction (PCR) amplification of the 16S rRNA gene and phylogenetic analysis were ... -
Know your cooking oil
(SM Group, http://smjournals.com/, 2016)Most of the cooking oils are vegetable oil. They are very rich in Polyunsaturated Fatty Acids (PUFA), omega-6 (n-3) and omega-3 (n-3) in the ratio of 16-20:1 against the recommended requirement of 1-4:1 and they lack their ... -
Mating type determination of cryptococcus neoformans isolates obtained from faecal samples of veterinary animals in Botswana
(Centre for Info Bio Technology (CIBTech), http://www.cibtech.org/, 2016)Cryptococcus neoformans/gattii species complex cause cryptococcosis, a fatal condition in susceptible humans and animals. This paper aims to find the association of C. neoformans with veterinary excreta, and to carry out ... -
Microbial quality assessment and predominant microorganism of biltong produced in butcheries in Gaborone, Botswana
(Scientific Research Publishing Inc. http://www.scirp.org/journal/fns/, 2014)Biltong is a dried ready to eat meat product that is produced and consumed to a large extent in Botswana. A study was undertaken with the objective of determining the microbial quality and isolating and identifying the ... -
Molecular evidence of high rates of asymptomatic P. vivax infection and very low P. falciparum malaria in Botswana
(BioMed Central, https://bmcinfectdis.biomedcentral.com/, 2016)Background: Botswana is one of eight SADC countries targeting malaria elimination by 2018. Through spirited upscaling of control activities and passive surveillance, significant reductions in case incidence of ... -
Molecular Identification of Campylobacter concisus
(American Society for Microbiology. http://jcm.asm.org/, 2001)A 1.6-kb DNA fragment isolated from a Campylobacter concisus genomic library gave C. concisus-specific restriction fragment length patterns when it was used as a probe in hybridization studies. All of the strains ... -
Monitoring maternity mortality in Botswana
(Elsevier, www.rhmjournal.org.uk, 2007)This paper describes the maternity monitoring system in Botswana, developed in 1998, and the main methods used: maternal death and morbidity reviews at service delivery level, analysis by the National Maternal Mortality ... -
Multivariate analysis of Harpagophytum DC. ex Meisn (Pedaliaceae) based on fruit characters
(Academic Journals; http://www.academicjournals.org/ijbc, 2011)Harpagophytum is bitypic and native to Southern Africa. Its two species are Harpagophytum procumbens and H. zeyheri. H. procumbens is medicinal. A reliable method of identifying the species is through its fruit. However, ... -
Mycoflora and natural occurrence of aflatoxins and fumonisin B1 in cassava and yam chips from Benin, West Africa
(Elsevier B.V. www.elsevier.com/locate/ijfoodmicro, 2008)The presence of fungi, aflatoxins and fumonisin B1 in cassava and yam chips (during 28 processing and storage) were evaluated during two consecutive seasons in two agroecological zones of Benin (Northern Guinea Savannah, ... -
Occurrence of antibiotic-resistant enterococci in some insects from stored food products in Botswana
(Applied Zoologists Research Association (AZRA), http://www.azra-india.com, 2017)The occurrence of antibiotic-resistant enterococci in some insects from stored food products from fourteen geographical areas in Botswana was investigated in the present study. Eleven insect species were identified from a ... -
Optimising growth conditions for the pectinolytic activity of Kluyveromyces wickerhamii by using response surface methodology
(Elsevier / www.elsevier.com/locate/ijfoodmicro, 2003)This present study was undertaken to find optimum conditions of pH, temperature and, period of incubation for the pectinolytic activity of Kluyveromyces wickerhamii isolated from rotting fruits and to assess the effect ... -
Oyster mushrrom cultivation at different production systems: a review
(Dr. Petkova V., http://www.ejbps.com/, 2018-05)This paper aims to review historical perspectives, nutritional and medicinal benefits, biodiversity, cultivation, diseases and their control, pathogen detection systems, food safety concerns and use of spent mushroom compost ...