CN1181883A

CN1181883A - Preservatizing method of red dates

Info

Publication number: CN1181883A
Application number: CN 97120273
Authority: CN
Inventors: 王照会
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-11-11
Filing date: 1997-11-11
Publication date: 1998-05-20

Abstract

The said method is that fresh date, after being washed and dried to eliminate surface moisture, is soaked with wine and vacuum packed in plastic bag in vacuum packing machine. It can maintain fresh and crisp date for over one year.

Description

A kind of preservation method of red date

The invention belongs to fruit or vegetables and preserve technical field, the preservation method of a kind of fresh and crisp red date of more specifically saying so.

As everyone knows, the jujube top grade fruit that just is listed in health body-building since ancient times, nutritive value contains rich in protein, vitamin, particularly vitamin C than other fruit height, thus it have strengthen the spleen and stomach, nourishing blood and tranquilization, the special efficacy that nourishes the body.But bright jujube can only be deposited several days, the time slightly length will go bad and rot, therefore how to make its long-period freshness preserving just become important research project.Traditional method all is the bright jujube under plucking directly to be shone into dried jujube without cleaning deposit, sell, but harmful impurity such as agricultural chemicals raffinate, dust still apply for a long time on the surface of wrinkling jujube, even eat preceding cleaning, it is also relatively more difficult to remove these impurity from wrinkling surface, and dried jujube does not have bright jujube crisp and sweet.Also useful relatively large wine is made liquor-saturated dates in the old method, normally bright jujube is put into the container of bigger jar one class, pours drinking white spirit into, mixes thoroughly, uses dirt seal.Such method also can only deposit in about three months, and higher southern access time of temperature is just shorter; If play envelope, liquor-saturated dates are not sold edible immediately, will rot in four, five days.

Application number be propose in 95113721 the patent application with selected, clean, the bright jujube sealing back of oven dry surface water is with cobalt-60 radiation source irradiation, to reach fresh-keeping purpose.Though this method has its advantage, the method more complicated needs with cobalt-60 radiation source irradiation.

The objective of the invention is to overcome the shortcoming of prior art, it is simple to propose a kind of method, and clean hygiene keeps bright jujube local flavor, do not lose the red date long-period freshness preserving method of nutrition.

Main technical schemes of the present invention: be with red date selected, that clean, remove surperficial moisture content, it is soaked, at last through the sterile vacuum packing with a spot of liquor.

Method specific operation process of the present invention is followed successively by:

1. selected nothing is gone rotten, the fresh and crisp jujube of no breach, free from insect pests, with agricultural chemicals raffinate and other impurity of the clean jujube surface attachment of pure clear water;

2. with the red date airing cleaned or dry lip-deep water, generally need 10-30 minute;

3. the airing red date is put into container, adds a certain amount of wine, mixes thoroughly, and the addition of wine is the 1-5% of red date weight;

4. with vacuum packing machine vacuum plastic bag packaging.

The above-mentioned implements that respectively go on foot all contact red dates all must be cleaned.

Described wine is meant the drinking white spirit on the market, and it is fixed that the number of degrees that the addition of wine is looked wine come, but the surface of each jujube must soak, and vacuum-packed immediately, in case the liquor evaporation.

Described vacuum packing machine is an equipment commonly used on the market, and the vacuum packing machine that the present invention uses is that food packing machine factory of Tianli Aeronautics Electromechanical Co., Tianjin produces, and the trade mark is the ZBZ84-B type.

Major advantage of the present invention: method of the present invention adopts vacuum-packed, fresh and crisp red date is preserved more than 1 year at normal temperatures to never degenerate, clear and melodious and the sugariness that keeps fresh date, and has mellow fragrance, shift to an earlier date a wheat harvesting period than common suning method bright jujube is come into the market, jujube farming and client can be benefited as early as possible;

Method fresh-preserved red dates clean hygiene of the present invention, nontoxic, no synthetic preservative and antistaling agent, the characteristics of maintenance natural green food; Method improvement of the present invention traditional red date fresh-keeping method, also more simple than cobalt source method of radiating.

Further describe characteristics of the present invention below by example.

Example 1

With the existing selected 10kg of bright jujube that plucks, clean with clear water, be layered on the clean plank, the 15 minutes lip-deep water of airing red date puts it in the clean container, pours 36 degree liquor 0.5kg into, mixes thoroughly, with vacuum packing machine plastic bag packaging (one bag of 1kg).Wherein 5 bags of red date preservations were at room temperature opened in 8 months, and red date is shiny, and is clear and melodious, fragrant and sweet.

Example 2

Selected 100kg red date is cleaned with clear water, and airing is put into container, pours the Erguotou wine 1kg of 65 degree into, mix thoroughly, with vacuum packing machine plastic bag packaging (one bag of 1kg), press the same method of example 1, get wherein 5 bags and deposited 1 year, red date is still clear and melodious, and mellow fragrance is arranged.

Claims

1. the preservation method of a red date is characterized in that specific operation process is followed successively by:

(1) selected nothing go rotten, the fresh and crisp red date of no breach, free from insect pests, with agricultural chemicals raffinate and other impurity of the surface attachment of the clean jujube of pure clear water;

(2) with the red date cleaned airing or dry the water of surface attachment in 10-30 minute;

(3) red date of airing places container, puts into wine, mixes thoroughly, and the addition of wine is the 1-5% of red date weight;

(4) with the wet red date of (3) step steeping in wine vacuum packing machine vacuum plastic bag packaging.

2. in accordance with the method for claim 1, it is characterized in that described wine is drinking white spirit.