Preparation method of dried day lily

Abstract

The invention belongs to the field of food processing, and particularly relates to a preparation method of dried day lily. The dried day lily is prepared by the working procedures of with fresh day lily buds as raw materials, destemming, rinsing by running water, leaching, putting into dishes, carrying out microwave heating for deactivating enzymes, cooling, carrying out once microwave drying for dehydrating, cooling, carrying out secondary microwave drying for dehydrating, cooling, carrying out three-segment far infrared rotary baking, and packaging. According to the invention, microwave heating for deactivation of enzymes for three times, dehydration and three-segment far infrared rotary baking and drying modes are adopted, the day lily is subjected to enzyme deactivation, dehydration and drying, and sterilization, and the prepared dried day lily can be directly eaten or can be eaten after rehydrated. The method provided by the invention is beneficial to preservation of the dried day lily, also keeps the color, fragrance, flavor and shape of the day lily well, and effectively solves the problem of nutritional ingredient loss in the processes of deactivating enzymes and drying. The dried day lily prepared by the method provided by the invention is straight and uniform in shape, is golden yellow and green in color, and can be preserved for 18 months with perfect packages under the normal temperature condition.

Description

technical field [0001] The invention belongs to the field of food processing, in particular to a preparation method of dried day lily. Background technique [0002] Yellow flower is the flower bud of the perennial herbaceous perennial plant of Liliaceae Daylily. It is rich in nutritional value, rich in protein, minerals and vitamins, especially carotene, which is the crown of vegetables. It also contains a variety of substances that the human body cannot synthesize by itself amino acid. Since ancient times, it has the reputation of "treasures on the table" and "view as a famous flower, use as a good medicine, and eat as a delicacy". At present, the yellow flower products on the market mainly include refrigerated fresh-keeping products and dehydrated dried products, among which dehydrated dried day lily is the main one. "A Method for Cold Storage and Preservation of Day Lily" (CN1875726A) discloses a method for cold storage and preservation of day lily. Refrigerate at ~4°C...

AI Technical Summary

Problems solved by technology

The method of solar energy fixation is simple and low in cost, but it is easily affected by rainy weather; although the speed of steam fixation is fast, the effect of fixation is uneven, and carbon dioxide is emitted into the atmosphere, which is not conducive to ecological protection; the energy consumption of drug fixation is low, but it is easy to make the product The sulfur content exceeds the standard, which does not meet the requirements for safe use

Moreover, these commonly used methods dry the daylily color dark yellow, the dried strips are soft, and the nutritional loss is greater during the drying process.