Determination of population density of Aspergillus flavus and Aspergillus parasiticus in the last irrigation treatments before harvest in soil and fruits of pistachio trees

ObjectiveContamination of pistachio with Aspergillus and aflatoxin is one of the most important problems in the production and export of this valuable product.In this research, in addition to molecular identification of Aspergillus flavus and A.parasiticus and determination of the frequency of their toxigenic and atoxigenic isolates, the population

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High-level expression of Bacillus naganoensis pullulanase from recombinant Escherichia coli with auto-induction: effect of lac operator.

Pullulanase plays an important role in specific hydrolysis of branch points in amylopectin and is generally employed as an important enzyme in starch-processing industry.So far, however, the production level of pullulanase is still somewhat low from wide-type strains and even heterologous expression systems.Here the gene encoding Bacillus naganoens

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