Processing technology of broccoli superfine powder

Abstract

The invention discloses a processing technology of broccoli superfine powder, comprising the following specific preparation processes: cleaning fresh broccoli through a multi-stage combined cleaning machine, draining, dicing, deactivating enzymes, feeding into a freezing room of minus 18 DEG C, quickly freezing for 3-5 hours, feeding into a vacuum freezing bin after freezing, freeze-drying for 12-18 hours, controlling the freeze-drying temperature in the whole process to be below 50 DEG C, and discharging the broccoli out of the bin when the water content of broccoli is below 8%; carrying outsuperfine grinding on the freeze-dried broccoli by virtue of a primary grinding and superfine grinding unit, carrying out UHT sterilization on broccoli superfine powder in a powder sterilization machine system, and then screening, packaging, boxing and labeling the sterilized broccoli superfine powder so as to obtain a finished product. According to the method, fresh broccoli is subjected to deactivation of enzymes and vacuum freeze drying dehydration, the whole dehydration process is in an anaerobic low-temperature process, the broccoli is barely not discolored, the fragrance is not lost, thetaste is kept fresh, and compared with hot air high-temperature drying dehydration, the product quality is greatly improved.

Description

technical field [0001] The invention belongs to the field of broccoli superfine powder preparation and relates to a processing technology of broccoli superfine powder. Background technique [0002] Broccoli, also known as broccoli, broccoli, and green cauliflower, is a variety of Brassica cabbage species that uses green curds as products. The average nutritional value and disease prevention effect of broccoli far exceed other vegetables, and it is known as the "king of vegetables". The nutrients in broccoli are not only high in content, but also very comprehensive, mainly including protein, carbohydrates, fat, minerals, vitamin C and carotene. According to analysis, the protein content of every 100 grams of fresh broccoli is 3 times that of cauliflower and 4 times that of tomato. In addition, broccoli has more comprehensive mineral components than other vegetables, and is rich in calcium, phosphorus, iron, potassium, zinc, and manganese. [0003] At present, the processin...

AI Technical Summary

Problems solved by technology

[0003] At present, the processing process of broccoli superfine powder is mainly to dehydrate and dry fresh broccoli, then superfinely pulverize it into superfine powder, and use it as beverage brewing and food and beverage raw materials. The processing technology is: fresh broccoli→cleaning→cutting Ding → high temperature hot air drying and dehydration → superfine grinding → screening → packaging → irradiation sterilization → labeling → finished product However, the current product processing technology has the following defects: fresh broccoli dehydration is dehydrated by high temperature drying, for The color and aroma of the product are greatly damaged, the color will turn yellowish brown, the aroma will be lost, and the taste will lose its freshness; during high-temperature hot air drying, the active ingredients will be seriously lost; sterilization is sterilized by radiation, and the product has radiation residue after sterilization. The product has potential safety hazards

[0004] In the broccoli preparation process, it needs to be cleaned and then drained and diced. The existing broccoli cleaning method is to put the broccoli in water to repeatedly brush and then remove and drain. The cleaning efficiency is low, and in order to To make the broccoli clean, it needs anti-corrosion washing, which wastes water resources

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