CN104814504A

CN104814504A - Beverage freshness preservation method by filling nitrogen gas

Info

Publication number: CN104814504A
Application number: CN201510175453.2A
Authority: CN
Inventors: 陆波; 李学军
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-04-14
Filing date: 2015-04-14
Publication date: 2015-08-05

Abstract

The present invention provides a new preservation method of preventing oxidation of beer, grape wine, fruit juice and other beverages, as well as improving the mouth feel of the beverages at the same time. The preservation method uses nitrogen or mixed gas with nitrogen as main gas in the purification, deoxygenation, isolated packaging and freshness preservation of beer, grape wine, fruit juice and other beverages. The nitrogen gas or mixed gas with nitrogen gas as main gas is filled into liquid beverages (alcoholic drinks and non-alcoholic beverages) in various filling ways in order to achieve the effect of isolating packages, preserving freshness and improving drinking mouth feel.

Description

The inflated with nitrogen preservation method of beverage

Technical field

The present invention relates to a kind of preservation method, particularly a kind of nitrogen or the mist based on nitrogen are at the production process of beverage and preservation method when packing.

Background technology

Nitrogen is basic surrounding material, it is a kind of colorless and odorless, the inactive inert gas of chemical property, accounts for 78% of earth atmosphere, can not leave any chemical residue when gaseous nitrogen is used for antistaling process, and it is low to have operating cost, the fireballing clear superiority of aerogenesis.

But at present, the manufacturer of the beverages such as the beer on market, grape wine and fruit juice all also uses carbon dioxide as fresh-keeping gas.

With fresh-keeping as beverages such as beer, grape wine and fruit juice of nitrogen, this series products deaeration in process of production can be made, afterwards with nitrogen as isolation, anti-oxidation rotten gas during the packing of the beverages such as beer, grape wine, fruit juice, make the beverage freshness remaining phases such as beer, grape wine, fruit juice longer.In addition, because nitrogen is not easily reacting with other material at normal temperatures, when avoiding completely using carbon dioxide as barrier packaging gas, carbon dioxide forms carbonic acid in water, to the change of the beverage mouthfeel such as beer, grape wine, fruit juice and local flavor, thus make the beverages such as beer, grape wine, fruit juice more meet the mouthfeel of modern, it also avoid people simultaneously and take in great amount of carbon dioxide at health formation sour water to health formation injury.

Summary of the invention

The object of this invention is to provide a kind of beverages such as beer, grape wine, fruit juice that prevent newly to be oxidized, improve again the preservation method of its mouthfeel simultaneously.Nitrogen or the mist based on nitrogen are applied to the purification deoxygenation of the beverages such as beer, grape wine, fruit juice and barrier packaging, fresh-keeping by the method.Described nitrogen or the mist based on nitrogen comprise and are not limited to the food-grade nitrogen prepared in every way or the mist of (nitrogen is maximum content) based on nitrogen, in every way filling, be filled in liquid beverage (pick-me-up and soft beverage), with play barrier packaging, fresh-keeping, improve and drink the effect of mouthfeel.

Specifically, the inventive method at least comprises the following steps:

(1) production phase

In beverage deoxygenation process, nitrogen is filled with beverage, as beverage production of heating can not drink generation bad reaction to beverage, beverage can be warmed to 40 degrees Celsius to 80 degrees Celsius, beverage fully stirs after being filled with nitrogen, dissolving oxygen in the beverage is fully got rid of, and the oxygen that the often liter of beverage obtained detects is not higher than 1 milligram.

(2) packing stage

Filled drink in a reservoir, and in container, being filled with fresh-keeping gas, gland seal subsequently, described fresh-keeping gas is the nitrogen of compression or the mist based on nitrogen, make the residual oxygen of head space in container be less than 0.5%, it is 80% nitrogen that described mist at least comprises volumetric concentration.

Described beverage comprises pick-me-up and soft beverage; Wherein alcoholic beverage comprises white wine, beer and grape wine, and soft beverage comprises fruit juice, coarse cereals juice, vegetable juice, various flavouring beverages (sweet, salty, sour etc. mouthfeel).

Described container internal gas pressure is 2-3Mpa under normal temperature state.

The nitrogen be filled with is food-grade (the State Bureau of Quality Supervision's standard) nitrogen, and purity is 99.999%, and filling nitrogen pressure is 2-3Mpa, fills the nitrogen time to set by filling apparatus filling process.

Preferably, the described mist based on nitrogen comprises the nitrogen of 80%-100% and the carbon dioxide of 0-20%.

Wherein said container comprises pop can, vial, plastic bottle, and described plastic bottle is preferably PET bottle.

Preferably, described nitrogen is through method preparations such as empty point-score, pressure swing adsorption method, membrane separation process and combustion methods.

It is by after air liquefaction that empty point-score produces its general principle of nitrogen, utilizes the liquefaction separator that do not coexist of each component boiling point in air to carry out separation rectifying, produces nitrogen.

Pressure swing adsorption method, from the compressed air of air compressor, first enters cooling driers and removes moisture, then enters the PSA nitrogen-making device be made up of two adsorption towers, utilizes the special carbon molecular sieve adsorbent loaded in tower optionally to adsorb to fall O ₂, CO ₂etc. foreign gas component, and as product nitrogen gas, the purity with 99% is discharged by tower top.

Membrane separation process is different according to the transfer rate of component each in mist through film under the promotion of pressure, realizes being separated of nitrogen and other gas.

Combustion method mainly utilizes the air-making after burning purification for the method for nitrogen.

Utilize the deoxidation of food-grade nitrogen purge, be called as the method for " stirring " (Compressed Gas is by sprayer agitated liquid), in processing procedure, in liquid, pass into nitrogen, the oxygen in these nitrogen bubble removing liquid.In the process of filling nitrogen, the air in container and the oxygen in beverage out replaced, make on the one hand bottle oxygen of internal oxidition beverage residual very low, beverage does not have can for the source of oxygen of reaction; On the other hand, nitrogen defines nitrogen envelope in the head space part of container, has intercepted the contact of oxygen and wine or beverage, reaches protection wine or beverage, prevents the effect that it is oxidized.Moreover nitrogen dissolubility in water is very little also can not react with water, therefore can not have an impact to mouthfeel.

Detailed description of the invention

Embodiment 1

(1) production process

In beverage deoxygenation process, nitrogen is filled with beverage, as beverage production of heating can not drink generation bad reaction to beverage, beverage can be warmed to 40 degrees Celsius to 80 degrees Celsius, beverage fully stirs after being filled with nitrogen, cause dissolving oxygen in the beverage fully to be got rid of, advise that the oxygen that can be detected by often liter of beverage is not higher than 1 milligram.

(2) packaging process (adopting bottle placer to produce)

To prepare and beverage through deoxygenation adds bottle placer, connect fresh-keeping gas, the container such as pop can, PET bottle is filled into through pressurization, fill and build the bottle cap having blown away impurity immediately after nitrogen terminates and carry out capping process, in sampling Detection bottle, the residual oxygen of head space is for being less than 0.5%, under normal temperature, the container inner pressure such as pop can is 2-3Mpa, through coding vanning warehouse-in after gland terminates.

Effective evaluation

Above embodiment uses reviewer to drink test, and mouthfeel silk floss is suitable, anacidity picotement, measures the shelf-life at least at 6 months.

Claims

1. a beverage freshness remaining method, it comprises the following steps:

(1) in beverage deoxygenation process, nitrogen is filled with beverage, stir, the oxygen that often liter of beverage is detected is not higher than 1 milligram;

(2) filled drink in a reservoir, and be filled with in container mist make the residual oxygen of head space in container be less than 0.5% after sealing, wherein said mist comprises the nitrogen that volumetric concentration is at least 80%.

2. method according to claim 1, wherein as fruit beverage production of heating can not drink generation bad reaction to beverage, can be warmed to 40 degrees Celsius to 80 degrees Celsius by beverage.

3. method according to claim 1, wherein: described beverage comprises pick-me-up and soft beverage.

4. method according to claim 3, described pick-me-up comprises white wine, beer and grape wine, and described soft beverage comprises fruit juice, coarse cereals juice, vegetable juice and various flavouring beverages.

5. method according to any one of claim 1 to 4, wherein: described container internal gas pressure is 2-3Mpa under normal temperature state.

6. method according to any one of claim 1 to 4, wherein: the nitrogen be filled with is food-grade nitrogen, purity is 99.999%.

7. method according to any one of claim 1 to 4, wherein said mist comprises the nitrogen of 80%-100% and the carbon dioxide of 0-20%.

8. method according to any one of claim 1 to 4, wherein: described nitrogen is prepared by empty point-score, pressure swing adsorption method, membrane separation process or combustion method method.

9. method according to any one of claim 1 to 4, wherein said container is pop can, plastic bottle or vial, and wherein said plastic bottle is preferably PET bottle.

10. the beverage using the method described in claim 1 to 9 any one obtained.