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Quick freezing preservation method for sweet potatoes

A fresh-keeping method and technology for sweet potatoes, which are applied to the preservation of fruits and vegetables, preservation of fruits/vegetables by freezing/refrigeration, and food preservation, etc., can solve the problems of easy deterioration of sweet potatoes, troublesome storage, and poor storage, so as to prevent deterioration and save energy. , the effect of low environmental requirements

Inactive Publication Date: 2017-08-08
赵春芝
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the technical problem that sweet potatoes are easy to deteriorate and difficult to store, especially in winter

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A method for quick-freezing fresh-keeping of sweet potatoes, the fresh-keeping includes the following steps:

[0021] (1) For the selection of fruits, choose fresh, no bumps, no peeling sweet potatoes;

[0022] (2) Quick freezing Put the fresh sweet potatoes stored above 10 degrees Celsius directly in an environment below minus ten degrees Celsius, and quickly freeze; then freeze them for another 13 minutes, turn the sweet potatoes twice during the freezing process, and freeze them thoroughly.

[0023] (3) The frozen sweet potatoes are stored at -5°C.

[0024] In October, 60 sweet potatoes were selected for preservation, and the deterioration was 0 after 60 days.

Embodiment 2

[0026] A method for quick-freezing fresh-keeping of sweet potatoes, the fresh-keeping includes the following steps:

[0027] (1) For the selection of fruits, choose fresh, no bumps, no peeling sweet potatoes;

[0028] (2) Quick freezing Put the fresh sweet potatoes stored above 10 degrees Celsius directly in an environment below minus ten degrees Celsius, and quickly freeze; then freeze for 15 minutes, turn the sweet potatoes 3 times during the freezing process, and freeze thoroughly.

[0029] (3) The frozen sweet potatoes are stored at -10°C.

[0030] In November, 60 sweet potatoes were selected for preservation, and the deterioration was 0 after 90 days.

Embodiment 3

[0032] A method for quick-freezing fresh-keeping of sweet potatoes, the fresh-keeping includes the following steps:

[0033] (1) For the selection of fruits, choose fresh, no bumps, no peeling sweet potatoes;

[0034] (2) Quick freezing Put the fresh sweet potatoes stored above 10 degrees Celsius directly in an environment below minus ten degrees Celsius, and quickly freeze; then freeze them for another 14 minutes, turn the sweet potatoes 3 times during the freezing process, and freeze them completely.

[0035] (3) The frozen sweet potatoes are stored at -5°C.

[0036] In October, 60 sweet potatoes were selected for preservation, and the deterioration was 0 after 90 days.

[0037] In summary, the storage temperature is -5℃, which can guarantee the quality of sweet potatoes and save energy.

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Abstract

The invention relates to a quick freezing preservation method for sweet potatoes. The preservation method comprises the following steps: (1) selecting sweet potatoes: choosing fresh sweet potatoes with no collision and scaling; (2) quickly freezing: directly putting the fresh sweet potatoes which are stored in 10 DEG C or more in an environment lower than 10 DEG C below zero or less to be quickly frozen; (3) storing frozen sweet potatoes into environment lower than zero DEG C or less. The quick freezing preservation method has the advantages that a preservative is avoided, sweet potato taste is not affected, and pollution to food is avoided; refrigeration at 5 DEG C below zero or less is needed to guarantee that the quickly-frozen sweet potatoes do not unfreeze, so that energy is saved; thus, all cells are in a breath stasis state, and metabolic waste is prevented from being generated.

Description

Technical field [0001] The present invention relates to the technical field of agricultural products preservation, in particular to a quick-freezing preservation method of sweet potatoes. Background technique [0002] Sweet potato (English: sweet potato) (scientific name: Ipomoea batatas (L.) Lam.), also known as yam, red jade, sweet potato, sweet potato, yam, yam (Hebei), sweet potato (northern), sweet potato, silk lotus, sweet potato , Golden potato, sweet potato, red potato, pillow potato, kudzu, white yam, fennel sweet potato, red sweet potato, cute sweet potato, etc. [0003] Sweet potato belongs to the tubular flower order, an annual herbaceous plant in the Convolvulaceae family. It is more than 2 meters long, lying on the ground obliquely. The leaves are usually wide ovoid, 4-13 cm long and 3-13 cm wide. The corolla is pink, white, and light. Purple or purple, bell-shaped or funnel-shaped, 3-4 cm long, capsule ovate or oblate, with false septum, divided into 4 compartments,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B7/04
CPCA23B7/0441
Inventor 赵春芝
Owner 赵春芝
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