Natural & Applied Sciences

Natural & Applied Sciences Research Papers/Topics

PHYSICOCHEMICAL PROPERTIES, ANTIOXIDANT AND ANTIMICROBIAL ACTIVITIES OF PAPAYA (Carica papaya L.) SEED, RIND AND PULP OILS

Abstract: Carica papaya (L.) is a monoecious, dioecious or hermaphrodite tree; it belongs to the family Caricaceae. It is widely cultivated throughout the world and is used as food and traditional medicine, particularly as an antiseptic and contraceptive. Papaya contains many biologically active compounds. Fruits, leaves, latex and stems are used to treat indigestion, diarrhoea, stoppage of urination, blindness and alopecia. The aim of this work was to assess the physicochemical properties, ...

FLORISTIC COMPOSITION, STRUCTURAL ANALYSIS AND REGENERATION STATUS OF WOODY PLANT SPECIES IN DABAL FOREST, EAST HARARGHE ZONE, OROMIA, ETHIOPIA

Abstract: The study was conducted in Dabal forest to investigate the floristic composition, population structure and regeneration status of woody plant species (WS) in the forest. 52 nested quadrats of the size 20m × 20m, 10m x 10m and 5m × 5m for tree/shrub, sapling and seedling respectively, were laid systematically along seven line transects. For each quadrat, variables such as altitude, longitude and latitudes were recorded by using Garmin 62 GPS. A metermarked stick was used to measur...

EVALUATION OF ALLELOPATHIC EFFECT OF Lantana camara L. LEAF EXTRACTS AND GROWTH INHIBITORY EFFECT OF SOIL FROM BENEATH ITS CANOPY ON Lepidium sativum L.

Abstract: In most cases invasive plants have allelopathic effects on crops and other indigenous associated plants. Allelochemicals from such plants may also have negative impact on soils. This study was carried out to investigate the allelopathic effect of leaf extracts of Lantana camara and soils invaded by it on Lepidium sativum. Leaf extracts of Lantana camara were prepared in 5, 10, 15 and 20% concentration levels while distilled water was used as control to evaluate germination paramete...

HEMATOLOGICAL PROFILE OF SCHOOL CHILDREN WITH AND WHITHOUT INTESTINAL PARASITIC INFECTIONS IN FIK DISTRICT, ERER ZONE, ETHIOPIAN-SOMALI REGION

Abstract: Parasite infections are a disease conditions associated with the presence of parasite in a host’s body. And It is believed that infections caused by parasites have an effect on hematological parameters. Hence this study was designed to investigate the effect of intestinal parasites infections on Packed Read Cell Volume (PCV), Hemoglobin (Hb) concentration, and blood groups frequencies as well as to investigate the intestinal parasite prevalence among school children. Stool and bl...

EFFECT OF pH AND SUBSTRATE CONCENTRATION ON BIO-ETHANOL PRODUCTION FROM POTATO PEEL WASTE USING Saccharomyces cerevisiae

Abstract: Fermentation is a metabolic process of microorganisms to obtain energy by breaking down organic compound. Potato peel waste was fermented with different concentration substrate (1gm, 2.5gm, 5gm, 10gm, 15gm, 20gm and 25gm) with 1% yeast and pH4.5 in different fermentation period (4th day, 8th day, 12th and 16 th days) with the aim of optimizing the substrate concentration for ethanol production. Among the different substrate concentration 10 gram of substrate produced more quantity ...

IN VITRO PROPAGATION OF TWO IRISH POTATO (Solanum tuberosum L.) VARITIES THROUGH LATERAL BUD CULTURE

Abstract: Irish Potato (Solanum tuberosum L.) is one of the world’s most economically important tuber crops belonging to the family Solanaceae. It is a versatile vegetable that is eaten all around the year. The objective of this study was to establish a protocol for in vitro micropropagation of Gudene and Belete Irish potato varieties from lateral bud explants. For shoot induction lateral buds of Gudene and Belete were cultured on MS basal medium that contained 30 g/l sucrose, 6 g/l agar, ...

Evaluation of the Antimicrobial Activities of Wollayta Honey against Escherichia coli O157:H7 and Salmonella Typhimurium and its Physico-Chemical Characteristics.

Abstract: This study evaluated the antimicrobial activities and the physicochemical characteristics of five honey samples (White, Red, Yellow, Black, and Mixed) from Wollayta, Ethiopia. The agar dilution method was used to assess the antibacterial activities of honey against S.Typhimurium and E.coli strains. Microbial growth inhibition was determined by measuring the diameter of clear zone of microbial growth around the well in the agar. The mean inhibition zone diameters (mm) for White, Red...

ASSESSMENT OF WATER-BORNE PARASITES AMONG SCHOOL CHILDREN AND THEIR WATER SOURCES IN EFA BERI PRIMARY SCHOOL, EJERE TOWN, WEST SHAWA, OROMIA, ETHIOPIA

Abstract: Shawa Zone of Oromia Region, Ethiopia from March-April, 2017. A total of 384 fresh stool samples of school-children were examined using direct wet mount, formol-ether concentration and Modified Ziehl-Neelsen methods and 72 water samples from different sources were examined to detect the presence of water-borne parasites. The resulst indicated that the overall prevalence of water-borne parasitic infections among students was 38.0%. The result revealed that Giardia lamblia, Entamoeba...

PREVALENCE AND INTENSITY OF INTESTINAL PROTOZOAN AND HELMINTH INFECTIONS AND THEIR ASSOCIATIONS WITH ANTHROPOMETRIC MEASUREMENTS OF PRIMARY SCHOOL CHILDREN IN CHAGNI TOWN, AMHARA REGIONAL STA

Abstract: Intestinal protozoan and helminth infections are the major public health problems in many developing countries including Ethiopia. This study was aimed to determine the prevalence and intensity of intestinal protozoan and helminth infections in school children and their associations with anthropometric measurement. A cross-sectional study was carried out and 393 school children were chosen using stratified random sampling technique and enrolled in the present study. Structured and ...

PHENOTYPIC, GENOTYPIC AND ALLELIC FREQUENCIES OF ABO AND Rh(D) BLOOD GROUPS AMONG STUDENTS BELONGING TO SOME SELECTED ETHNIC GROUPS IN GERESU DUKI PREPARATORY SCHOOL IN WOLISO TOWN, OROMIA

Abstract: The ABO and Rh blood groups are the most important blood groups despite the long list of several other blood groups discovered so far. The ABO and Rh blood groups varies worldwide and are not found in equal numbers even among ethnic groups. Therefore, the objective of the study was to estimate phenotypic, genotypic and allelic frequencies of ABO and Rh blood groups among students of Oromo, Amhara and Gurage ethnic groups in Geresu Duki preparatory school in Woliso town, Oromia, Eth...

PREVALENCE OF INTESTINAL PROTOZOAN PARASITIC INFECTIONS AND ASSOCIATED DETERMINANT FACTORS AMONG CHILDREN IN ASHINGA PRIMARY SCHOOL, SAYINT DISTRICT, SOUTH WOLLO, NORTH EAST ETHIOPIA

Abstract: Intestinal protozoan parasitic infection is the major public health problem in many developing countries including Ethiopia. The present study was conducted to assess the common protozoan parasitic infections among school children and the associated determinant factors in Ashinga Primary School, Sayint district, Northeast Ethiopia. The design of the study was a crosssectional epidemiological investigation involving a sample population of 384 grade 1-8 school children in AshingaPrim...

INDIVIDUAL AND COMBINED ANTIMICROBIAL ACTIVITIES OF CRUDE EXTRACTS FROM HONEY, GARLIC AND GINGER AGAINST SELECTED HUMAN PATHOGENS

Abstract: Concerns about disease causing bacteria are now ever increasing. The common and immediate action to these disease causing microbes is the use of antibiotics. However, due to the challenges of drug-resistance in bacteria and the problems of affordability of the drugs, the search for new compounds from plant and animal sources that act against the pathogens has become crucial in many countries. The aim of this study was to investigate the possibility of using honey, garlic and ginger...

ALLELIC AND GENOTYPIC FREQUENCIES OF THE ABO BLOOD GROUP SYSTEMS AND THEIR ASSOCIATIONS WITH Helicobacter pylori INFECTION AMONG PATIENTS WITH GASTROINTESTINAL COMPLAINTS IN EJERE DISTRICT,WE

Abstract: Helicobacter pylori is a small, spiral-shaped bacteria that lives on the surface of the stomach and duodenum. H. pylori is closely associated with onset of diseases such as gastric ulcers, duodenal ulcers, gastritis and gastric cancers. The aim of this study was to determine the allelic and genotypic frequencies of ABO blood group system and their associations with H. pylori infection among 384 patients with gastrointestinal complaints in the Ejere and Amaro Helth Center. Stool sam...

ETHNOBOTANICAL STUDY OF TRADITIONAL MEDICINAL PLANTS IN ADAMI TULU JIDO KOMBOLCHA DISTRICT, OROMIA, ETHIOPIA

Abstract: Ethiopia has rich flora with different plant species having medical importance in health care system based on local indigenous knowledge. In this study, plants of traditional medicinal use and their associated indigenous knowledge in Adami Tulu Jido Kombolcha were investigated. A total of 100 informants (age≥25) were selected to collect information on medicinal plant use from three sampled kebeles. Of these, 20 key informants were selected purposively and 80 informants were selec...

EFFECTS OF Eucalyptus camaldulensis Dehnh AND Croton macrostachyus Del ON SELECTED SOIL CHEMICAL AND PHYSICAL PROPERTIES IN NITSOILS IN BISHO WATERSHED, SOUTHERN ETHIOPIA

Abstract: In the past, Ethiopia was rich in natural resources. As population pressure increased, resources have been exploited greatly. In the study area the need to expand cultivated has led to the removal of well-adapted, nutrient additive indigenous trees. The study was conducted in Bisho watershed, Southern Ethiopia, to evaluate the Effect of Eucalyptus camaldunesis Dehnh. and Croton macrostachyus Del. and distance away from tree trunk on selected soil chemical and physical properties in...


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