Research Papers/Topics in Biotechnology

A Comparative Analysis of The Efficacy of Cow, Chicken And Pig Wastes on Spinach (spinacia oleracea) as Alternatives to Artificial Fertilizers.

ABSTRACT Spinach (Spinacia oleracea) is a low growing fleshly leaved annual plant that can be used as a vegetable and or to treat a variety of diseases. This study aimed at comparing the effectiveness of cow, chicken and pig manure on the plant height, leaf number, leaf length as well as root length of spinach. An experiment was conducted in a greenhouse at Africa University between the months of June and July 2018. The experiment was a randomised complete block design (RCBD) with chick...

An Investigation On The Prevalence And Drug Susceptibility Of Salmonella Enterica And Shigella Dysenteria Pathogens In Beitbridge Town

Abstract Salmonella enterica and Shigella dysenteria are different groups of Gram-negative bacteria. Salmonella infection affects the small and large intestine (enterocolitis) whereas Shigella infection affects the colon (colitis). Diarrhea, abdominal pain and fever are the main symptoms in both diseases. The study was conducted among Beitbridge residents who visited Beitbridge District Hospital suffering from diarrhea in the months December 2017 and January 2018. The aim of the stu...

Occurance Of Organic Compounds In Water And Sediments In Sebakwe River

ABSTRACT Pollution of the aquatic environment is a major global concern as it is emerging that pollutants such as organic compounds are rising each day. The anthropogenic activities such as agricultural and wastewater effluent contribute to the pollution of aquatic resources. The aim of this study was to determine the spatial occurrence and concentration of organic compounds in water and sediment along Sebakwe River in Kwekwe. Water and sediment samples were collected once in January 20...

A comparison of susceptibility to feeding by the black bean aphid (aphis fabae) between two varieties of beans (phaseolus vulgaris) (gloria and nua 45) commonly grown in zimbabwe.

ABSTRACT Gloria and Nua 45 are two of the most commonly grown sugar bean varieties in Zimbabwe. Beans are a cheap alternative source of protein and have been on high demand due to the ever-rising meat prices. Gloria and Nua 45 are being affected by the black bean aphid (Aphis fabae) feeding which is the most problematic insect pest of beans. The aphid feeds on foliage of plants resulting in stunted growth and reduced yields. A comparison of susceptibility to feeding by A. fabae was done...

Phosphorus Uptake In Sorghum Seedlings Colonized With Arbuscular Mycorrhizal Fungi

ABSTRACTThe process of re-establishing the natural level of arbuscular mycorrhizae (AM) fungi richness can represent a valid alternative to conventional phosphate based fertilization practices, with a view to sustainable agriculture. The main strategy that can be adopted to achieve this goal is the direct re-introduction of AM fungi inoculum into a target soil. AM fungi have a high affinity for phosphorus, an essential macronutrient that participates in the skeleton of the nucleic acids DNA a...

THE IMPACT OF SEWAGE EFFLUENT ON THE AQUATIC HEALTH OF SEBAKWE RIVER, KWEKWE, ZIMBABWE

AbstractMany of the sewage treatment plants in Zimbabwe have not been upgraded to accommodate the population increases that the cities have undergone. This has resulted in the release of raw or partially treated sewage into rivers, which negatively impacts the ecological health of these ecosystems. The aim of this study was to determine the impact of sewage effluent on the aquatic health of Sebakwe River, Kwekwe. Monthly surveys of macroinvertebrates and water variables were carried out from ...

An assessment on microbial quality of ready to eat cooked foods (Sadza, Rice and Relish), sold by vendors at Midlands State University (MSU) main campus bus terminus.

ABSTRACTDiarrheal diseases are the third leading cause of death in third world countries, resulting in 1.8 million deaths around the world per annum. A study was carried out to assess the microbial quality of ready to eat cooked foods sold at Midlands State University (MSU) bus terminus in March 2018. Type of samples which were microbially assessed were sadza, rice, chicken stew, beef stew, cabbage salads, pork chops and russian sausages. Sampling was done for three different days. A total of...

An investigation of heavy metals pollution in Sebakwe River Kwekwe, Zimbabwe.

ABSTRACTPollution of aquatic ecosystems with heavy metals is now of global concern due to their effects on human health and persistence in the environment. The study was carried out to determine the heavy metal pollution in Sebakwe River Kwekwe, Zimbabwe. To provide information on heavy metals chromium, lead, copper, magnesium and iron concentrations in water and sediments, samples were collected at five sites in January 2019 and in February 2019. The samples were acid digested and analysed w...

The Antibiotic Effects Of Apple Cider Vinegar On Candida Albicans And Candida Tropicalis

ABSTRACTCandida species are the most common cause of fungal infections in humans. Candida species produce infections that range from non life-threatening mucocutaneous illnesses to invasive processes that may involve virtually any organ and this broad range of infections. Candida albicans coexists with a highly diverse human bacterial microbiota. Candida tropicalis is a common pathogen in neutropenic hosts in whom it may spread through the bloodstream to peripheral organs. Candida tropicalis ...

Cadmium From Sludge And Effluent From Gimboki Sewage Treatment Plant Accumulates In The Vegetable Telfairia Ocidentalis

ABSTRACTUse of sewage sludge and effluent in cultivation of crops and vegetables is a common practice in Zimbabwe. However, high concentrations of heavy metals such as Cadmium (Cd) in sewage sludge and effluent does not only result in environmental contamination, but may lead to elevated heavy metal uptake by crops, which may affect food quality and safety. The current study aimed to investigate if high concentration of Cd in sludge and effluent from Gimboki Sewage Treatment Plant translates ...

An Investigation Of The Susceptibility Of Three Acacia Species To Viscum Articulatum Infection

ABSTRACTAcacia species are indigenous trees which are of great importance in Zimbabwe. They can beused for various purposes for example making pulp and tannin, as cattle feed, as fuel (charcoaland wood) and for timber production which can be used for construction purposes. However,Acacia species are being affected by Viscum articulatum in Zimbabwe especially in GreystonePark, Mazowe district, Glen Lorne and some parts of Midlands province. At present, Acacia treesaffected by the Viscum articu...

A study of the M235T variant of the angiotensinogen gene and hypertension in a sample population of Calabar and Uyo, Nigeria

Abstract A common molecular variant of the angiotensinogen gene had been reported to predisposesome ethnic groups to hypertension. This case-control study was designed to determine thefrequency and association of the angiotensinogen M235T al1ele with hypertension in residents ofCalabar and Uyo cities, south-south Nigeria.The study involved 1308 subjects, 612 patients and 696 controls. The M235T variant was investigatedusing an allele specific polymerase chain reaction and enzymatic digestion ...