التقدير الكيميائي لمكونات مخلفات العنب المعصور و دراسة تأثير المعاملات الحرارية لمستخلصه في تثبيط نمو بعض الأحياء المجهرية

Abstract EN

The chemical composition of wastes of pressed grapes and found that the main components of wastes of pressed grapes, represented by the percentage of moisture was 6.47 %, and the proportions are 3.7 %.

Either carbohydrates amounted to 85.77 %, either in fat models using petroleum ether Petroleum ether) was the increase of 0.27%.

estimated the percentage of ash in the sampls was 3.78 %, either fiber reached 69.47 %,, in addition to the test extracts towards the growth of seven types of bacteria, which included Bacillus subtilis, Bacillus cereus, Bacillus stearothermophilus, Escherishia coli, Staphylococcus aureus, Salmonella typhimurium and Pseudomonas fluorescens and yeast Candida albicans and Kluyveromyces marxianus, (diffusion metho).

Tested the effect of three transactions calories a pasteurization fast and sterilization autoclave as well as the sterilization cold as it gave extracts positive results in terms of impact inhibitory to bacteria positive and negative gram, while expressed yeast sensitivity less toward extracts.