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Quick-freezing fresh-keeping processing process of roses

A processing technology and technology for roses, applied in the field of quick-freezing and fresh-keeping processing technology of roses, can solve the problems of rose petal freezing injury, rose petal juice loss, large color change, etc., and achieves strong technological operability, less fragrance volatilization, and easy operation. Effect

Inactive Publication Date: 2012-08-01
GUANGDONG KEQI SUPER QUICK FREEZING TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional freezing process generally uses air freezing, and the processed rose petals have serious juice loss and large color changes, and rose petals are prone to frost damage.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A kind of rose quick-freezing fresh-keeping processing technology, comprises the following steps:

[0033] Use fresh roses as raw materials, select petals that are free from diseases and insect pests, without withering and deterioration, thick and plump, rich in fragrance, and bright in color, and placed in a cold storage at 5°C for freshness preservation. During the preservation period in the cold storage, spray roses with a citric acid solution with a mass concentration of 1%; Then remove the stamens and keep the petals, and remove the damaged or poor-quality petals, spray the rose petals with a mass concentration of 1% citric acid solution; put the fresh flower petals into a composite plastic packaging bag, place them in a mold, and press them while vacuuming Form into a block with a thickness of 4cm and seal it, with a vacuum of 0.08Mpa; place the packaged petals in an ice-water mixture at 4°C for 2 hours; then place the packaged petals in a liquid immersion freezer ...

Embodiment 2

[0035] A kind of rose quick-freezing fresh-keeping processing technology, comprises the following steps:

[0036] Using fresh roses as raw materials, select petals that are free from diseases and insect pests, without withering and deterioration, thick and plump, rich in fragrance, and bright in color, and placed in a cold storage at 10°C for pre-cooling and preservation. Spray roses with a citric acid solution with a mass concentration of 0.5%; put the petals into a composite plastic bag and place it in a mold, then vacuumize and seal it, and press it into a block with a thickness of 2cm when vacuuming, with a vacuum degree of 0.095Mpa ;Pre-cool the packaged petals in an ice-water mixture at 1°C for 1 hour; then put the pre-cooled petal packages into a liquid immersion quick-freezer for quick-freezing, the quick-freezing temperature is -40°C, and the freezing time is 5 minutes until the center temperature of the petal packaging is at -20°C; the quick-frozen bag is refrigerate...

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Abstract

The invention belongs to the field of a fresh-keeping technology of agricultural products, in particular to a quick-freezing fresh-keeping processing process of roses. The quick-freezing fresh-keeping processing process comprises the following steps of selecting materials, pre-processing, packaging, pre-cooling, quick-freezing, refrigerating at constant temperature and the like. According to the invention, the roses quickly pass through a maximum ice crystal zone and are free of larger ice crystals; the original quality of the roses are kept furthest; the problem of seasonal shortage of the roses as industrial raw materials is effectively solved; the processing process is free of any preservative and is free of toxicity and harm to body; the quick-freezing fresh-keeping processing process provided by the invention completely adopts a localization device and is easy to control, strong in operability and low in energy consumption, achieves the purposes of keeping the quality, saving and reducing the emission, is suitable for large-scale production of quick-freezing roses, and provides a brand-new technology for deep processing industry of the roses.

Description

[0001] technical field [0002] The invention belongs to the technical field of fresh-keeping of agricultural products, and in particular relates to a process for quick-freezing and fresh-keeping of roses. [0003] Background technique [0004] Roses are perennial shrubs of the Rosaceae family. Roses are good food with the same source of medicine and food. Roses have a medicinal history of more than 2,000 years in my country. It was first recorded in "Food Materia Medica", saying that "the main benefit is the lungs and spleen, the liver and gallbladder, and the fragrance of food is sweet and refreshing." "Compendium of Supplements" states that it "cures pain in the liver and stomach, and uses roses (dried in the shade) to make soup instead of tea." Roses are warm and sweet in nature, enter the liver and spleen, and have the effects of promoting qi and relieving depression, harmonizing blood and relieving pain. In addition, roses are rich in flavonoids, which have certain...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G5/00
Inventor 余铭崔晓浔杨公明张全凯
Owner GUANGDONG KEQI SUPER QUICK FREEZING TECH
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