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The purpose of this project is to explore and study a new type of whitebait deep-processing technology . At present, most of the whitebait processing stay preserved in the frozen few reports about its deep processing . Whitebait this project the development of products and strive to maintain the original shape and color to minimize whitebait color , smell , taste , and the loss of nutrients . Study, freeze-drying combined with the vacuum microwave heating process . Outside the traditional freezing process , to explore the whitebait deep processing of new technology . The study to map out the freeze - drying curve , quantitative analysis of the relationship of the freeze-drying time and the whitebait moisture content , appropriate initial microwave moisture content ; sensory evaluation , to determine the appropriate amount of salt to add ; aging products to be , the final preparation people the whitebait food for immediate consumption . Volume shrinkage, the texture of the product quality evaluation system, determine the factors affecting the quality of products : lyophilized time , the microwave power , the degree of vacuum , and the heating time . By single factor experiment to study the impact of each single factor on product quality , choose the level of microwave orthogonal test factors . Optimal conditions for orthogonal test to optimize the processing methods : freeze-dried for 5 hours , microwave power 560W , the degree of vacuum 8000Pa , heating 90s . Acid value, peroxide value indicators , to select nitrogen Package by high temperature ( 45 ° C , 55 ° C ) destructive testing . Determination of whiteness , combined with the sensory evaluation to determine the end of the test . According to the obtained experimental test data , the use of SAS analysis software regression analysis , suggesting that the Q10 value , and then speculated that the storage shelf life of the product at 25 ℃ for 14 months . The research projects : freeze-drying vacuum heating of microwave processing , the product can maintain the original shape and color , the successful exploration of whitebait deep processing .
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