A method of preparing guava instant powder

Abstract

The invention discloses a method of preparing guava instant powder, which includes the following steps: picking fresh guavas and cleaning, then soaking them into the color-protecting solution consisting of sodium citrate and EDTA-2Na. Squeezing the guava into juice with a juicer to get raw guava juice; adding mixed enzyme for enzymolysis; performing the vacuum concentration and vacuum freeze drying of juice after enzymolysis to get the dry powder through ultraviolet sterilization and packaging of the dry powder. Finally the guava instant powder is obtained. Guava instant powder prepared by the method of this invention involves the steps of color-protecting treatment, enzymolysis, vacuum freeze drying and so on, which not only can maintain the nutrient content and natural flavor of guava, but also has the advantages of cold water brewing-and-drinking, easy to carry, easy to store, easy to use and so on. Thus it further enriches the types of deep processed products of guava, helping to promote the development of guava industry and improving the economic benefits of orchardists. The method features simple process, low energy consumption, high production efficiency, low cost and so on, which is applicable to industrial production.

Description

technical field [0001] The invention relates to the technical field of food processing, in particular to a method for preparing guava instant dry powder. Background technique [0002] Guava (PsidiumguajavaL), also known as chicken arrow fruit, plucked seeds, Myrtaceae (Myrtaeeae), guava (Psidium), evergreen perennial shrubs. Guava meat is thick and crisp, sweet and refreshing, with a unique aroma, rich in vitamin C (Vc), polyphenols, riboflavin, soluble protein, etc., and is deeply loved by consumers. It can be eaten fresh or processed into fruit juice or powdered products. It also has medicinal and health effects, such as lowering blood sugar, preventing diabetes, and anti-oxidation. The skin of fresh guava fruit is thin and tender, easy to be bruised, and the dry water is severe after harvesting, and the hardness drops rapidly, so the storage life is short, and it is not resistant to storage and transportation. Generally, the quality and flavor will change after a few day...

AI Technical Summary

Problems solved by technology

The deep processing of guava in the prior art is simply freeze-drying and pulverizing the fresh guava to make dry powder, so as to facilitate storage and transportation, but the active ingredients in the guava still exist in the cell wall of the plant tissue without dissolving or Extracted, so that the guava powder is not easy to absorb, the effect after eating is not ideal

Therefore, it is necessary to use water with a higher temperature when brewing, and it needs to be stirred to fully dissolve it, which brings a lot of inconvenience to users; on the other hand, the processed products have serious loss of original nutrients and natural flavor.

Instant powder is a health food that integrates convenience, naturalness, and compound nutrition and is easy to preserve. It is ready-to-drink and meets the current needs of people's high-efficiency and fast-paced life. Report on instant powder