الفهرس | Only 14 pages are availabe for public view |
Abstract This study aims to introduce a survey and assessment of mycotoxins (aflatoxin) contaminants in the Egyptian rice through the stages of preparation after harvest and until releasig to the consumer. The rice samples was collected from (Dakahleya, Kafr El-Sheikh, and Al-Sharkia Governorates. Stored rice in flat warehouses in some Egyptian Governmental facilities. Samples divided, graded and kept in cloth bags and stored for Nine months period at ambient environmental condition. The results of the study dealt with chemical properties of Polished and rough rice before storing, moisture content, Ash percentage, Fiber percentage, Nitrogen Free Extract (NFE%) percentage, total caloric value percentage, physical properties of rough and dirough, Physical properties of rough rice, Weight per 1000 kernels (g), Hardness (%), Color of rough rice, physical properties of Polished rice, Weight per 1000 kernels (g) of Polished rice, Hardness (%) of Polished rice, color of Polished rice, grading at different periods of storage, Microbial properties of rice after different storing periods, Total count of fungi for Polished rice of different Governorates subject of the study at the beginning, Total count of fungi for rough rice of different Governorates subject of the study, Aflatoxin in storage periods for rough rice, Aflatoxin in storage periods for Polished rice. The study concluded that after 270 days of storage, the grade of polished rice for processing is grade 4 for all the rice collected from the different zones of the study (Dakahleya, Kafr El-Sheikh and Sharkia). All types of the polished rice are infested. It is also noticed that there is an increase in damaged kernel, broken kernels and well –milled kernels than the previous storage period. The heat damaged kernel increased to be 4 for Dakahleya and 4.5 for Kafr El-Sheikh and reached to 5 for El-Sharkia. Keywords: Aflatoxin, storage periods, rough rice, Polished rice |