The drying technology of rapeseed is an important link in the process of rapeseed processing. The different drying methods and processes have a significant impact on the quality of rapeseed. Based on the research results of rapeseed drying mechanism, mathematical simulation, drying technology and quality analysis at home and abroad, the research progress of rapeseed drying technology at home and abroad was reviewed. The methods of hot air drying, warehouse drying,
high voltage electric field and superheated steam drying of rapeseed were summarized, and the current situation was pointed out. The problems and shortcomings in the research of rapeseed drying technology were discussed. The development direction of rapeseed drying research was prospected. The aim was to provide reference for the follow-up research of rapeseed drying technology.
Keywords rapeseed, drying, current situation and progress
Rapeseed is the second largest source of vegetable oil in the world, next to soybeans. Its annual output is nearly 60 million tons. Among them, Canada, China, India and Australia are among the top domestic producers. The area and yield of rape in China ranked first in the world in the past 20 years. Rapeseed contains about 38% to 45% fat, 20% to 25% protein and 25% carbohydrates.
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