Quick-frozen roasted sweet potato manufacturing method

Abstract

The invention provides quick-frozen roasted sweet potatoes. The quick-frozen roasted sweet potatoes are prepared by steps: step one, cleaning sweet potatoes and roasting; step two, taking out flesh of the roasted sweet potatoes, and trimming original skin of the sweet potatoes into a certain shape, and subjecting the flesh of the sweet potatoes to tunnel microwave high-temperature sterilization; step three, adopting a vacuum electric heating stirrer for well stirring the pulp of the sweet potatoes and ingredients under a vacuum heating condition, wherein the ingredients are mainly selected from one or more of milk powder, vegetable shortening, custard powder and white sugar; step four, subjecting products obtained at the step three to forming lamination, refilling mixed sweet tomato mash into a mould, starting a vacuum piston type forming machine, and laminating the trimmed sweet potato skin to surfaces of the formed products; step five, starting a vacuum pre-cooler for precooling the roasted sweet potatoes subjected to forming lamination; step six, putting the pre-cooled products into a quick-freeze storage; step seven, adopting a continuous pillow type packaging machine for quickly packaging to obtain products.

Description

technical field [0001] The invention relates to a method for preparing quick-frozen baked sweet potatoes, which belongs to the field of food processing. Background technique [0002] There are a wide variety of frozen and quick-frozen foods sold in the freezer in the market. Among the many frozen and quick-frozen foods, there are mostly pasta, such as buns, dumplings, wontons, siu mai, spring rolls, yuanxiao, etc. The dishes include lamb skewers, shrimp, shrimp, Meatballs, etc., these frozen and quick-frozen dishes can be eaten immediately after a simple heat treatment. [0003] Sweet potatoes, also known as sweet potatoes and sweet potatoes, are rich in protein, starch, pectin, cellulose, amino acids, vitamins and various minerals, and are known as "longevity food". It has anti-cancer, heart protection, prevention of emphysema, diabetes, weight loss and other effects. Baked sweet potato is a food baked with sweet potato and auxiliary ingredients. It originated in Hong Kon...

AI Technical Summary

Problems solved by technology

[0005] The usual baked sweet potatoes are processed through cleaning, meat extraction, sterilization, mixing, molding and packaging. There are many problems in this method. They are baked and sold immediately, and hygiene and safety are difficult to guarantee, and the output is low; the outer skin of sweet potatoes is easily damaged. The water retention performance is poor, and the quality of baked sweet potatoes cannot be guaranteed, especially the taste; the product takes a long time to process and is exposed to high temperature environment for a long time, which cannot effectively control the reproduction of microorganisms

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