Bamboo shoot powder and processing and preparing method thereof

Abstract

The invention belongs to the field of food, and relates to a food raw material and a processing and preparing method thereof, in particular to bamboo shoot powder and a processing and preparing method thereof. The concrete preparing method of bamboo shoot powder comprises the following steps: 1, cleaning raw materials, namely bamboo shoots, dicing the bamboo shoots and draining the diced bamboo shoots for later use, wherein the diced bamboo shoots are cubes with the size of 1-20mm; 2, performing dehydration treatment on the prepared bamboo shoot cubes for removing 30-70% water from the prepared bamboo shoot cubes, and then naturally drying the dehydrated bamboo shoot cubes until no obvious moisture exists on the surface; 3, quick-freezing the bamboo shoot cubes subjected to dehydration treatment to crystallization by spraying liquid nitrogen, and then grinding the crystallized bamboo shoot cubes into powder, wherein the mesh number is greater than 120 meshes; and 4, immediately packaging the prepared bamboo shoot powder and sealing for storage. The large-scale preparation of bamboo shoot powder is realized, the cost is effectively reduced, and the productivity is increased.

Description

technical field [0001] The invention belongs to the field of food, and relates to a food raw material and a processing and preparation method thereof, in particular to a bamboo shoot powder and a processing and preparation method thereof. Background technique [0002] Bamboo shoot powder is popular in the market due to its unique nutritional value and can be easily added to various foods such as noodles, but it is not only expensive, but also has low production efficiency, which cannot meet the needs of the market. At present, there are two processing methods for processing bamboo shoots into bamboo shoot powder: [0003] One is the dry pulverization method. The processing steps of the dry pulverization method are to remove the bamboo shoots from the thick and old part of the bamboo shoot base, cut them into pieces, then completely dehydrate them by airing and drying procedures, and then pulverize them with a pulverizer. This method has its inherent defects. First, dry crus...

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Problems solved by technology

[0004] Second, it is a wet colloid mill pulverization method. Simply put, water is added during the pulverization process, and then the pulverized colloid is dehydrated and dried for grinding. This method avoids some inherent defects of dry pulverization. For 100 mesh The processing cost of the above-mentioned high-fineness bamboo shoot powder is also lower than that of dry grinding, but there are still shortcomings: first, wet colloid grinding will cause dehydration after grinding into gel, and this process will cause water-soluble dietary fiber A large amount of loss makes the nutritional value greatly reduced; second, the discharged wastewater is still polluted; third, the wet colloid mill is crushed, and the crushing process needs to be ground with water. Filters, centrifuges, flash dryers, and horizontal centrifuges are unable to perform continuous dehydration because bamboo shoot fibers block the filter cloth, and the production time is even shorter than the time for preparing and cleaning production equipment. A station operated by 5 to 6 people Colloid mill + 10 centrifuges, the production capacity of bamboo shoot powder is 500Kg / 40h, the production efficiency is extremely low, which is obviously unacceptable to the manufacturer

[0005] So how to solve the problem of low quality of bamboo shoot powder caused by processing technology, low production capacity and high price in the prior art, so that bamboo shoot powder can be prepared on a large scale is exactly the problem that the inventor will solve

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