Technology for preparing fruit juice powder from passion fruits as raw materials

Abstract

The invention discloses a technology for preparing fruit juice powder from passion fruits as raw materials. The technology comprises removing shells and seeds of selected and cleaned fresh passion fruits, beating the fresh passion fruits to obtain passion fruit raw pulp with soluble solid content of 10-12 brix degrees, total acid content of 3-5% and pH of 3.0+ / -0.5, carrying out freeze concentration on the passion fruit raw pulp to obtain thick paste with soluble solid content of 40-60 brix degrees, freezing the thick paste to a temperature of -50 to -60 DEG C, after freezing of all the thick paste, feeding the thick paste into a crusher, carrying out crushing so that particle diameter is less than 3mm, putting the crushed thick paste on a disc, putting the disc with the crushed thick paste into a drying tank, carrying out pressurization, carrying out freezing at a temperature of -29 to -23 DEG C, keeping the temperature for 3-6h, gradually heating the dried material to a temperature of 27 DEG C in 1-2h, carrying out heating again, keeping the temperature of 50-60 DEG C for several minutes, carrying out milling by a jet mill, collecting the aggregate which is fruit juice powder and carrying out packaging so that the passion fruit juice powder product with water content less than 4.5% is obtained. The juice powder retains nutrients, can be stored at a normal temperature for a long time, is free of dextrin and any antiseptic, has light weight, can be carried and transported easily, has a wide application range and is simple and convenient in use.

Description

technical field [0001] The invention belongs to food processing technology, in particular to a process for preparing fruit juice powder with passion fruit as raw material. Background technique [0002] Passionfruit (passionfruit), also known as passion fruit and egg fruit, is a perennial evergreen climbing plant of the family Passiflora and Passiflora, and is a rare tropical and subtropical fruit. It is an indispensable raw material or high-grade additive for the manufacture of food such as jam (mud), fruit milk, ice cream, confectionery, flavors and fragrances, as well as health care products, high-end beauty and skin care products, and can play the role of flavoring, seasoning and nutrition. It contains flavor components of 165 kinds of fruits, covering almost the aroma types of most fruits in tropical, subtropical and temperate regions. It has a unique flavor and its aroma cannot be artificially imitated. [0003] One of the products known to utilize Passiflora to produc...

AI Technical Summary

Problems solved by technology

It contains flavor components of 165 kinds of fruits, covering almost the aroma types of most fruits in tropical, subtropical and temperate regions. It has a unique flavor and its aroma cannot be artificially imitated

[0003] It is known that one of the products produced by using passionflower is passionflower juice concentrate, and its production process is vacuum heating, evaporation and concentration. Taste and color deteriorate, so it is difficult to maintain the original flavor of passionflower, and the liquid product finally obtained contains 50% moisture, which is not conducive to transportation and storage

[0004]Another processed passion fruit product is the frozen puree of passion fruit. Its production process is obtained by directly freezing after squeezing the juice. The aroma and nutritional effect of pulp are better, but because the storage must be below -18°C, it will be easily contaminated by microorganisms, so it needs to be thawed during storage and use, resulting in extremely inconvenient transportation and use.

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