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In this work, we are interested in studying the investment challenges of packaged reconstituted milk in Southwestern Algeria with respect to the high demand for this strategic consumer product. To reach this objective, we have calculated the cost price of two products (partially reconstituted milk and fermented milk) which present the main production line of the dairy factory of Bechar (Algeria) to assess the profitability of the company in terms of benefit or deficit. The cost price of milk is calculated from the general balance and shows all the movements of the accounts which we have established the table of counting results 'TCR' corresponding to the different charges directly related to the milk manufacturing. The analysis of spending data given by the TCR showed that for this factory, the cost price of one liter of pasteurized milk is estimated at 27.06 DZD/L compared a quay-factory fixed selling price at 23.20 DZD/L, which reveals a deficit of -3.86 DZD/L (-16.63 %), while produced fermented milk showed a profit of +14.65 DZD/L representing a margin of distribution equivalent to (+ 60.16 %) of the cost price that was estimated at 24.35 DZD/L. According to the obtained results, it appears that the dairy industries in Algeria, and elsewhere which are based mainly on milk powder as raw material for the manufacturing of reconstituted milk at a fixed price subsidized in a dairy policy of social character privileged by the state, can have significant profit margins generated primarily by dairy products that can be sold at a free price.This study provides a platform which can be used, not only, to define the ability of dairy factory to overcome competitive market challenges, but also the pre-requisite programs installation challenges required to implement a quality system promoting the quality of milk and dairy products. [ABSTRACT FROM AUTHOR]

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The essential oils of many plants are become popular in recent years and their bioactive principles have recently won several industries. Lavandula angustifolia Mill., is a medicinal plant belonging to the family Lamiaceae, this species is known as the 'Khezama'. Their use as antimicrobial agents has been reported. This work focuses on the phytochemical analysis and study of the antibacterial activity of some extracts on six strains of bacteria responsible for food poisoning; E. coli, S. aureus, L. monocytogenes, S. typhimurium, B. cereus and Clostridium perfringens. The essential oil has been obtained by distillation, aqueous and methanolic macerats by maceration. The antibacterial activity was evaluated by the disc diffusion method. The yields of extracts obtained are 4,12; 21,18 and 24,07% respectively for the essential oil, methanolic and aqueous macerate. However, the variables antibacterial activity has been revealed that the strain S. typhimurium and S. aureus are the most sensitive to the action of the essential oil with a percentage inhibition of 15, 15 and 18, 14% respectively. The methanolic macerate gave a relatively medium antibacterial activity on three bacterial strains Gram positive, while other strains are resistant. No action has been given by the aqueous macerate. [ABSTRACT FROM AUTHOR]