Purpose of processing ⚫ One purpose of processing is to achieve and maintain microbial safety in the product. It was quite evident that foods without some form of preservation could create illness after consumption. The second common factor is the interest in extending the shelf life of the product. In most situations, there is a desire on the part of the consumer to have an opportunity to acquire many of the seasonal commodities on a year-round basis
Purpose of processing ⚫ One purpose of processing is to achieve and maintain microbial safety in the product. It was quite evident that foods without some form of preservation could create illness after consumption. The second common factor is the interest in extending the shelf life of the product. In most situations, there is a desire on the part of the consumer to have an opportunity to acquire many of the seasonal commodities on a year-round basis
PROCESSING CONCEPTS ⚫ Concentration, freezing，canning, drying, ⚫ manufacturing of orange juice concentrate ⚫ Manufacturing of frozen peas ⚫ Pasteurization of Milk ⚫ Manufacture of a canned soup ⚫ Manufacture of dry potato flakes
PROCESSING CONCEPTS ⚫ Concentration, freezing，canning, drying, ⚫ manufacturing of orange juice concentrate ⚫ Manufacturing of frozen peas ⚫ Pasteurization of Milk ⚫ Manufacture of a canned soup ⚫ Manufacture of dry potato flakes
Harvesting of Harvesting of Vegetables oranges peas starch Juice Cleaning and extraction sorting Blending Concentration Blanching Concentration Package Packaging Filling into filling cans Freezing Freezing Retort sterilization Storage Storage Storage distribution distribution distribution Consumer Consumer Consumer 1.1 Processing Processing Processing steps for the 1.2 13 团r可 steps for the steps for the manufacture manufacture manufacture of orange juice of frozen peas. of canned concentrate. soup
manufacturing of orange juice concentrate ⚫ Beginning with several preliminary steps such as washing and grading, the first key step is juice extraction. In commercial operations, removal of the juice from the orange occurs in a highly efficient and high-volume process. Following extraction, the juice is concentrated by reducing the water content while retaining the desirable components of the product before the product is placed in the final package for delivery to the consumer
manufacturing of orange juice concentrate ⚫ Beginning with several preliminary steps such as washing and grading, the first key step is juice extraction. In commercial operations, removal of the juice from the orange occurs in a highly efficient and high-volume process. Following extraction, the juice is concentrated by reducing the water content while retaining the desirable components of the product before the product is placed in the final package for delivery to the consumer
⚫ The shelf-life is extended further by reducing the temperature to well below the freezing point of water. The partially frozen product has a highly desirable storage stability for extended periods of time. The frozen juice concentrate is placed in storage and is maintained in the frozen state until the consumer is prepared to use the product
⚫ The shelf-life is extended further by reducing the temperature to well below the freezing point of water. The partially frozen product has a highly desirable storage stability for extended periods of time. The frozen juice concentrate is placed in storage and is maintained in the frozen state until the consumer is prepared to use the product