Gas-roller conveying-type catalytic infrared heating peeling method for tomatoes

Abstract

The invention discloses a gas-roller conveying-type catalytic infrared heating peeling method for tomatoes, and relates to the technical field of processing of agricultural products and food. The method comprises the following steps of turning on a front-section gas generator, and heating the tomatoes for 10 seconds by combustion flame; and then feeding the tomatoes sequentially enter a conveyingroller chain to rollably advance by 360 degrees, breaking the skins of the tomatoes after the tomatoes are heated for 4 min at the catalytic infrared temperature of 350 DEG C, and then obtaining peeled tomato products after the tomatoes are peeled. Compared with existing common methods of peeling with hot water and alkali liquor, the dry peeling method has the advantages that no waste water is generated, the method is more environmentally friendly, and the content of lycopene is increased by 133% and 454% respectively; and compared with a static catalytic infrared peeling method, the method provided by the invention has the advantages that the heating is more uniform, the processing time is shortened by 17%, and the lycopene content is improved by 77%. Therefore, the method is more energy-saving and environmentally friendly, the product quality is better, the efficiency of continuous production is higher, and the industrial popularization value is higher.

Description

technical field [0001] The invention relates to the technical field of agricultural products and food processing, in particular to a gas-roller transmission type catalytic infrared heating dry peeling method for fresh tomatoes. Background technique [0002] Tomatoes are rich in nutritional value. In recent years, there are more and more types of processed products, such as tomato paste, preserved tomatoes, canned tomatoes, etc. The nutrition and convenience of eating of their products have gradually attracted people's attention. Because the tomato peel is very hard and is not welcomed by consumers, the first process of tomato product processing is peeling. The lye and hot water peeling method has been the usual method of peeling in the tomato processing industry. However, hot water peeling has the problems of high heat energy consumption and the need to use a large amount of water, which can easily lead to waste of water resources; lye peeling, due to the strong corrosivene...

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Problems solved by technology

[0003] In order to solve the problems of poor heating uniformity and unreasonable structural design in current catalytic infrared processing equipment at home and abroad, the present invention has developed a gas-roller transmission type catalytic infrared heating dry peeling technology for tomatoes. With the help of flame burning, the generator instantly raises the peel to high temperature and the peeling method of continuous high-temperature infrared heating in the later stage shortens the entire processing time, and there is no water used in the processing process, which achieves the purpose of efficient peeling, emission reduction and environmental protection; at the same time The roller chain transmission design method realizes the automatic and continuous production of tomato peeling, and the tomatoes are heated more evenly, which avoids the reduction of pulp quality due to local overheating, and achieves the purpose of better protecting the quality of pulp

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