| Hetao muskmelon is an endemic species in the Inner Mongolia Autonomous Region of China. It has aroma, sweet taste and rich nutrition, which was known as the best in the melons. However, Hetao melon was not resistant to storage, which affected the sale of fresh product directly. At present, researches of postharvest and storage of Hetao melon in physiological and biochemical characteristics have been reported. But studies on Hetao melon processing products were rarely reported.The experiment selected fresh Hetao melon as raw materials, the freeze drying process and technology in Hetao melon powder has been studied. The results are as follows:(1) The best conditions of Hetao muskmelon blanching color protection:95℃ blanching Temperature,120s blanching time.(2) The best pre freezing process parameters of Hetao melon were: 6mm material slice thickness,4h pre freezing time. The best drying process conditions of Hetao muskmelons was 100g material loading,42℃ sublimation temperature and 61℃ analysis temperature.(3) Through the orthogonal test, it can be got that the best additive combination in instant were: maltodextrin 45%, CMC 0.3%, carrageenan 0.5%, and the best sieve mesh was 80.(4) Through the research on quality stability of of two kinds of different storage mode of Hetao melon powder can be got: the quality of Hetao melon could be well remain under refrigerated conditions(4℃). |
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