Sweet potato steaming and boiling processing method
A processing method and technology for sweet potato, which are applied in heating preservation of fruits/vegetables, food science, food preparation, etc., can solve the problems of rotten potato skin, more changes in sweet potato flavor, and difficulty in preservation, etc., achieving strong practicability and filling production gaps , the effect of avoiding losses
Inactive Publication Date: 2007-10-24
ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES
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Problems solved by technology
However, due to the high water content of sweet potatoes, the storage of fresh potatoes has strict requirements on environmental conditions and storage technology, and it is difficult to preserve under normal conditions. Studies have found that fresh potatoes are packaged in plastic bags after cooking, and the environment at room temperature (25°C) The medium shelf life does not exceed three days (72 hours), and mechanical damage to the potato skin during harvesting, storage, transportation, and sales can easily lead to rot. Therefore, most potato foods need to be processed to extend the shelf life
[0005] At present, there are many processed sweet potato products on the market, such as baked potatoes, preserved potatoes, French fries, baked potato chips, fried potato chips, etc., but most of these products have complicated processing technology, sweet potato flavor changes often, and the investment in production equipment is relatively high. Therefore, it is an urgent need to solve the problem of inventing a kind of sweet potato processing technology with less production investment and simple processing technology, so that the sweet potato can keep the original nutritional content and unique flavor to the greatest extent, and it is convenient to eat, hygienic and has a long shelf life. technical issues
Method used
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Experimental program
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Embodiment Construction
[0019] The sweet potato steaming and cooking process described in the present invention is: material selection, cleaning→cooking→dehydration→soaking liquid, draining→packing→sterilization→cooling→inspection; its specific process content is as follows:
[0020] (1) Material selection and cleaning: select fresh potato pieces without disease spots, insect damage, and mechanical damage, clean the surface sediment and foreign matter with clean water that meets drinking standards, and process them into potato pieces with a diameter of no more than 7cm. The thickness of potato chips is generally 6-7cm;
[0021] (2) Cooking: Put the selected and cleaned potato cubes into a multi-layer drawer-type steamer and spread them evenly. The thickness of each layer of potato cubes should not exceed 15cm to ensure that all potato cubes can Cook until cooked, then start the steamer, and steam for 25 minutes after the water temperature in the steamer reaches the boiling point, so that the potato p...
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The invention relates to a method for boiling sweet potato, comprising following steps: fresh sweet potato-> choosing material and washing-> boiling-> dehydrating-> immersing and draining-> packing-> disinfecting-> cooling-> checking. The invention employs grid principle, disinfects in many steps and overcomes the shortage in high-pressure disinfection and Pasteurising, which realizes no-bacteria product. The processed sweet potato retains the nutrition and specific taste and the storage period at room temperature reaches to over 270 days according to the national method for storage period checking.
Description
technical field [0001] The invention belongs to the field of deep processing of agricultural products, in particular to a sweet potato cooking method. Background technique. [0002] Sweet potato (ipomoea batatas lam) has many aliases in my country, such as sweet potato, sweet potato, sweet potato, sweet potato, sweet potato, etc. It has been introduced to my country for more than 400 years. It has high yield, wide application and strong adaptability. It is an important food crop in my country. , the planting area ranks first in the world. In recent years, with the continuous development of my country's agricultural production, changes in people's food composition, and the rise of food and feed processing industries, the status of sweet potatoes in food has changed, from the original coarse grains to industrial raw materials and excellent feed crop. [0003] Sweet potato contains a variety of nutrients, such as starch, sugar, protein, vitamins, cellulose and various amino aci...
Claims
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IPC IPC(8): A23B7/005A23L1/217A23L19/18
Inventor 龚启明张春荣顾伟平吴列洪季志仙寿建尧
Owner ZHEJIANG ACADEMY OF AGRICULTURE SCIENCES