This investigation was carrid out to utilize whey and rice in manufacturing nutritious product with therapeutic virtue . The rice cooked with whey in a ratio 1:10 w/w, then the product was fermented by lactic acid bacteria (LAB) starters that comprise each Lb.acidophilus (Lb.a),Lb.casie(Lb.c) and their mixes at ratios: 1a:1c ;2a:1c ; 1a;2c . The five different starters were used separately in processing fermented products . The best fermentation period was 2 days as hieghest therapeutic bacterial counts were resulted . Antibacterial activity of LAB filtrate from fermented products were obtained before drying and after drying them after 3 months of storage. The tested bacteria were Staph.aureus, E.coli ,and B.subtilis The results reveald that filterated of LAB from processed product treatments have inhibitory effects on tested bacteria .Staph. aureus was the most liable ,the inhibiting zone were between10.03-19.0 mm., while the inhibitory zone of E.coli were between 10.1612.83 mm. The activity of LAB filtarate obtained from products after drying dropped as compared with the same products before drying.There were significant defferences (p≤0.05) among diameters of inhibition zones of tested bacteria for different products treatments. The largest inhibition zone diameters were for Lb.a products which valued 12.36 ,16.50 ,and 15.16 mm. forE.coli,Staph. aureus, and B.subtilis ,respectively. The inhibition effects of products filteratesdecreased gradually during storage period, so that the inhibition zone diameters became smaller for Lb.a. treatments at order of 48.86 ,40.6,and 43.07 % forE.coli,,Staph. aureus, and B.subtilis ,respectively. It had been observed that the inhibitory activity of Lb.a.filterrate with grater on the examined bacteria as compared with other filterate treatments during storage period.
This study aims to expand the traditional model in calculating the break-even point to include the cost of capital invested and the funds employed in industrial companies through a change in the traditional model and the effect of adopting the advanced model of the break point on the operational leverage in planning profits in industrial companies. Where, the analysis of the break-even point and the operational leverage of the tools important by the management, which is used in the field of planning profits. A parity analysis in its sophisticated model will help in planning profits and determine the optimal size of production that maximizes profits. For its part, the operational leverage helps to make decisions regarding the expansion of
... Show MoreThe aim of the research is to design educational software based on Web Quests and to measure its effectiveness in developing information search skills of students at the Department of Educational and Psychological Sciences. The research is experimental in nature using pre-post measurement. The research sample consisted of (91) male and female students from the second grade in the Department of Educational and Psychological Sciences, they were divided into two equal groups; the experimental group consisted of (47) students who adopted the educational software as a studying method, and the control group consisted of (44) students who follow the traditional method. The researchers prepared a list of skills for searching information and they
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