Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for performing vacuum freeze drying on kiwi fruits

A vacuum freeze-drying and kiwi fruit technology, which is applied in food preservation, fruit and vegetable preservation, food science, etc., can solve the problems of easy damage, perishability, and difficult long-term storage, etc., and achieve good taste and less nutrient loss.

Inactive Publication Date: 2016-06-08
CHONGQING DINGCHUAN ECOLOGICAL AGRI DEV CO LTD
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, kiwi fruit is a fragile and perishable fruit, and it is not easy to store it for a long time after it matures. This is a great challenge for the transportation or preservation of kiwi fruit.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0014] ① Pretreatment: including picking, sorting, cleaning and disinfection, a. Picking: Picking healthy, pest-free, non-damaged and quality-compliant kiwifruit; b. Finishing: sorting by size after picking; c. Cleaning: Kiwi is cleaned, drained after cleaning, and then disinfected. The disinfectant composition used for disinfection is composed of potassium permanganate solution and sodium hypochlorite solution; preferably, the potassium permanganate solution is 0.1% permanganate Potassium solution; the sodium hypochlorite solution is 100ppm-300ppm sodium hypochlorite solution.

[0015] ② Pre-freezing: Pre-freeze the pre-treated kiwi at -35 to -25°C, preferably at -30°C for 4 to 7 hours; the temperature of the center of the kiwi is rapidly lowered to fully freeze the water;

[0016] ③Vacuum freeze-drying: Vacuum freeze-dry the kiwifruit to be frozen quickly, the temperature is -60~-55℃, and the time is 10~15h; the vacuum degree is generally 70~120pa. After the kiwifruit is fre...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a method for performing vacuum freeze drying on kiwi fruits. The method comprises the following steps: S1, performing pretreatment, wherein the step of pretreating comprises picking, sorting, cleaning and disinfecting; S2, performing pre-freezing, wherein the pretreated kiwi fruits are put at a place of minus 35 DEG C to minus 25 DEG C for pre-freezing, and the time is 4-7 hours; and S3, performing vacuum freeze drying, wherein vacuum freeze drying is performed on the pre-frozen kiwi fruits rapidly, the temperature is minus 60 DEG C to minus 55 DEG C, and the time is 10-15 hours. The kiwi fruits obtained after operation by the method can maintain fresh for a long term, the favorable taste of the kiwi fruits is reserved, the quantity of nutritive losses is small, and the kiwi fruits are convenient to preserve and transport, so that the method has important application values.

Description

technical field [0001] The invention relates to a method for freeze-drying fruit, in particular to a method for vacuum freeze-drying kiwi fruit. Background technique [0002] Kiwi fruit is a plant of the genus Actinidia in the family Actinidia, and is a healthy fruit welcomed by the general public. The content of vitamin C in its fruit is particularly high, and is known as "the king of fruits" or "the king of Vc". In addition, kiwi fruit also contains 17 kinds of amino acids, fruit acids, citric acid and various mineral elements necessary for the human body. However, kiwi fruit is a fragile and perishable fruit, and it is not easy to store it for a long time after it matures. This is a great challenge for the transportation or preservation of kiwi fruit. Contents of the invention [0003] The purpose of the invention is to provide a method for vacuum freeze-drying kiwi fruit. The purpose of the present invention is to realize through the following technical solutions: ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/024
Inventor 闵玉琼
Owner CHONGQING DINGCHUAN ECOLOGICAL AGRI DEV CO LTD