POPULATION DENSITY OF ASPERGILLUS FLAVUS AND ASPERGILLUS NIGER GROUPS AT DIFFERENT KINDS OF PISTACHIO PROCESSING TERMINALS IN KERMAN PROVINCE

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MORADI GHAHDRIJANI M.; MIRABOU ALFATHI M.

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Journal: Year:2008 | Volume:20 | Issue:4 (77 IN AGRONOMY AND HORTICULTURE) Page(s): 104-110

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Title

POPULATION DENSITY OF ASPERGILLUS FLAVUS AND ASPERGILLUS NIGER GROUPS AT DIFFERENT KINDS OF PISTACHIO PROCESSING TERMINALS IN KERMAN PROVINCE

Author(s)

MORADI GHAHDRIJANI M. | MIRABOU ALFATHI M. | Issue Writer Certificate

Keywords

AFLATOXINQ3

PISTACHIOQ3

A. NIGERQ3

A. FLAVUSQ4

Abstract

Pistachio processing terminals play an important role in contamination of PISTACHIO nuts by Aspergillus species and their toxin. The population density of Aspergillus flavus and Aspergillus niger groups were examined in PISTACHIO processing terminals. Sampls collected from different stages of 17 semi-mechanized and traditional PISTACHIO processing terminals. The media used for isolations were AFPA and Czapek agar. Serial dilution method was used to quantify populations of A. FLAVUS and A. NIGER groups. The results indicated that population density of flavus and niger groups in traditional terminals was more than semi-mechanized terminals in processed PISTACHIOs. Comparison between different washing systems during PISTACHIO processing revealed that using water shower baths is more efficient than current or non-current pools to reduce population densities of above fungi. Combination of two systems could be useful to establish a suitable washing system and sorting of contaminated PISTACHIOs from healthy ones is necessary. There was a positive correlation between shell staining and population density of Aspergillus flavus and Aspergillus niger groups and can be applied to sort out contaminated PISTACHIOs from healthy PISTACHIOs. There was no different between fungal population densities of sun-drying days, significantly. It seems sun-drying conditions are not suitable for growing Aspergillus species in Kerman province. Nevertheless conditions througout maturation of PISTACHIO nuts in the orchards are suitable for growing Aspergillus species, but in Kerman,s condition during processing and storage conditions are not suitable for occuring next infections in PISTACHIO lots. There was no certain correlation between small PISTACHIO and population densities of A. FLAVUS and A. NIGER groups, because population densities was high in some and low in other small PISTACHIOs. This is the first report to determine the population densities of Aspergillus species in PISTACHIO processing terminals and the role of different PISTACHIO processing terminals in contamination.Results of this research can be applied to improve PISTACHIO nut processing systems and sorting contaminated PISTACHIOs from healthy PISTACHIOs in processing stages.

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APA: Copy

MORADI GHAHDRIJANI, M., & MIRABOU ALFATHI, M.. (2008). POPULATION DENSITY OF ASPERGILLUS FLAVUS AND ASPERGILLUS NIGER GROUPS AT DIFFERENT KINDS OF PISTACHIO PROCESSING TERMINALS IN KERMAN PROVINCE. PAJOUHESH-VA-SAZANDEGI, 20(4 (77 IN AGRONOMY AND HORTICULTURE)), 104-110. SID. https://sid.ir/paper/20015/en

Vancouver: Copy

MORADI GHAHDRIJANI M., MIRABOU ALFATHI M.. POPULATION DENSITY OF ASPERGILLUS FLAVUS AND ASPERGILLUS NIGER GROUPS AT DIFFERENT KINDS OF PISTACHIO PROCESSING TERMINALS IN KERMAN PROVINCE. PAJOUHESH-VA-SAZANDEGI[Internet]. 2008;20(4 (77 IN AGRONOMY AND HORTICULTURE)):104-110. Available from: https://sid.ir/paper/20015/en

IEEE: Copy

M. MORADI GHAHDRIJANI, and M. MIRABOU ALFATHI, “POPULATION DENSITY OF ASPERGILLUS FLAVUS AND ASPERGILLUS NIGER GROUPS AT DIFFERENT KINDS OF PISTACHIO PROCESSING TERMINALS IN KERMAN PROVINCE,” PAJOUHESH-VA-SAZANDEGI, vol. 20, no. 4 (77 IN AGRONOMY AND HORTICULTURE), pp. 104–110, 2008, [Online]. Available: https://sid.ir/paper/20015/en

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