sorting and grading.pptx

B.Sc food technology in Bundelkhand university jhansi

1. Method of sorting and grading

2. Visual Inspection This involves manually examining the food products for quality attributes such as size, color, shape, texture, and defects. Skilled workers or inspectors perform this task.

3. Size Sorting: Food items can be sorted based on their size using mechanical equipment such as screens, sieves, or belts with different-sized holes. This method is commonly used for fruits, vegetables, and grains.

4. Weight Sorting Food products can be sorted based on their weight using weighing scales or conveyor systems with weight sensors. This method is useful for products where weight is an important quality parameter.

5. Color Sorting Optical sorting machines equipped with cameras and sensors can detect and sort food items based on their color. This method is commonly used for fruits, vegetables, nuts, and grains.

6. Shape Sorting Mechanical sorting machines can be used to sort food products based on their shape. This is particularly useful for products with specific shape requirements, such as potatoes for french fries or chicken parts.

7. Density Sorting Density-based sorting systems use sensors to measure the density of food items and separate them accordingly. This method is often used to separate denser and lighter materials, such as in the removal of foreign objects or defective items.

8. Magnetic Sorting Magnetic separators are employed to remove metallic contaminants from food products. They use magnets to attract and separate ferrous materials, ensuring food safety and quality.

9. Optical Grading Advanced optical grading systems utilize cameras, sensors, and image analysis algorithms to assess various quality parameters of food items, such as size, color, shape, and defects. This method is highly accurate and efficient.

10. Moisture Sorting Moisture content is a crucial quality factor in many food products. Moisture sorting techniques, such as moisture meters or near-infrared (NIR) spectroscopy, are employed to determine the moisture levels and sort the products accordingly

11. Defect Sorting Food products can be sorted based on the presence of defects or irregularities. This can be done manually or with the help of automated systems that use sensors, cameras, and image analysis software to identify and sort out defective items.

12. Thank you