Abstract: Proteases are multipurpose group of enzymes which mainly produced from microorganism and used in various industries such as detergent, silver recovery, food, pharmaceutical, leather and textile industries. This work aimed to isolate protease producing bacteria from local environment for use as silver recovery and reuse of polyester from waste X-ray film. Isolation of protease producer was undertaken using skim milk agar medium. A total of 36 protease positive bacteria were isolated from the study area (Arba Minch fish processing site). Five isolates were screened which had relatively higher clear zone and further examined gelatin removal efficiency of their crude enzymes. One isolate designated as Bacillus sp. THZ14 was selected on the basis of gelatin removal efficiency. The crude enzyme from this strain removed gelatin on waste X-ray film at pH 9, 40°C in 40 min. These properties suggest that protease from Bacillus sp. THZ14 could find potential application in silver recovery process and reuse of polyester sheet which have an economic implication.Abstract: Proteases are multipurpose group of enzymes which mainly produced from microorganism and used in various industries such as detergent, silver recovery, food, pharmaceutical, leather and textile industries. This work aimed to isolate protease producing bacteria from local environment for use as silver recovery and reuse of polyester from waste X-ray...Show More
Abstract: Malaria has been the leading cause of mortality for many years in underdeveloped countries like Ethiopia. Community Knowledge of cause and transmission of malaria and mosquito feeding behavior is key to design appropriate health communication strategies for malaria prevention and control. The present study aimed to assess knowledge and awareness on malaria and its association with mosquitoes in Dembele kebele, southeastern, Ethiopia. A community cross sectional study was carried out in Dembele kebele from January to February, 2017. A total of 159 randomly selected individuals were interviewed to assess their KAP about malaria. Data were collected by an interview based structured questionnaire after pre-tested. The collected data were entered in to SPSS for data coding and analysis. Binary logistic regressions analysis was applied and statistical significance test was declared at P-value <0.05 and OR with 95% CI. All respondents had ever heard of malaria and more than 86% of them believed that malaria was one of the most health problem diseases of the community. Most of the respondents (70.4%) were reported mosquito bite as the cause of malaria. The majority (79.2%) and (74.2%) of respondents had good levels of knowledge on transmission and prevention of malaria respectively. Binary logistic regression analysis showed that, knowledge on mode of malaria transmission was positively associated with sex (male) (OR=3.3; CI, 1.27-7.22), age (OR=5.03; CI, 1.03-24.46) and education level (OR=3.30; 95% CI, 1.04-10.50). Among socio-demographic variables, only education level (OR=3.8; CI, 1.51-9.65) was significance factor to knowledge on malaria prevention. The study aimed to assess knowledge and awareness regarding the cause, transmission and preventive measures of malaria; it was found to be high. Use of mosquito net as protective measure against mosquito bites was high in the study area. However, distance of respondent house is near to the mosquito breeding site. Therefore, environmental management and use of other additional preventive methods is very important to reduce prevalence of malaria in study area. Sex, age and education level were strong predictors of knowledge on malaria.Abstract: Malaria has been the leading cause of mortality for many years in underdeveloped countries like Ethiopia. Community Knowledge of cause and transmission of malaria and mosquito feeding behavior is key to design appropriate health communication strategies for malaria prevention and control. The present study aimed to assess knowledge and awareness on...Show More
