Chemical composition of three manufactured Monterey cheese (Control Monterey cheese (C), therapeutic Monterey cheese with the single probiotic strain (A) and therapeutic Monterey cheese with mixture probiotic strains (B)) by adding probiotics bacteria was studied at 0, 14, 28 and 42 days of ripening period. Moisture content decreased in all manufactured Monterey cheese (C, A and B) during the ripening period, protein and fat content increased after 42 days of ripening period and reached 23.41, 23.78 and 23.63% respectively for protein whilst 31.20, 31.03 and 30.43% for fat. Salt and ash content in manufactured monterey cheese by using a mixture of probiotics strains was higher than both manufactured monterey cheese with single probiotic strain and control product (without probiotics)
A total of 272 mutants (161 from sunlight exposed and 111 from unexposed conidia) resistant to the chemicals Topas, 8-azaguanine or Chloral hydrate were Isolated in the fungus Alternaria alternata. Initially, the exposure periods to sunlight and the minimal inhibitory concentrations for the chemicals were determined. The exposure periods were 20, 40, 60 and 90 minutes and the minimal inhibitory concentrations were 150 µg/ml for Topas, 3.5 µg/ml for 8-azaguanine and 4.5 mM for Chloral hydrate. The frequency of mutants resistant to each chemical was calculated and although the frequencies from the exposed samples were greater than those from unexposed one, the differences, however, were
The frequency of spontaneous mutants resistant to both chlorate and selenite was compared with the frequency of mutations induced by ultraviolet rays. The results showed that, the frequencies of chlorate resistance strains which isolated from two different parenting strains, AA 1 and SW 1 , were higher than 27 and 23 times from spontaneous frequencies respectively, so as for selenite resistant results, the induced and isolating mutants of two different parenting strains, AA 1 and SW 3 , were about 5 and 8 times higher than their spontaneous frequency, respectively. The mutant strains (Chl 5-Ch l9) and (Chl 13-Chl 27) were all resistant to chlorate-nitrate auxotrophic but they were distributed between spontaneous and induced as well as white or black conidia, while the mutants sel 1-sel 5 resistance to the selenite are color mutants (white conidia) and sulfates auxotrophic at the same time. Heterokaryon was also formed in Alternaria alternata between the two black Chl 10 strains, nitrate auxotrophic, have the genotype (nit 10 , w 2 + , s 2 +) and the white Sel2
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