JPH0657139B2 - How to store sake - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for preserving sake. More specifically, the present invention relates to a method for storing sake, which is characterized by storing sake in a closed container together with a blister-packed oxygen absorber.

[Prior Art] In general, sake is liable to be aged during storage and easily deteriorates in quality such as coloring and perfume. As a method to prevent such quality deterioration, (1) storage temperature is lowered as compared with the conventional method. (2) Remove dissolved oxygen. A method has been adopted, and addition of activated carbon, N ₂ gas substitution, etc. have been attempted as a method of removing dissolved oxygen in (2). But these methods are not perfect. A method using an oxygen scavenger has been considered as an alternative method, but the method using a conventional oxygen scavenger is not perfect.

Generally, iron-based deoxidants are often used,
Alcohol in the oxygen absorber due to contact between the oxygen absorber and sake,
In some cases, water is transferred and the oxygen scavenger gets wet, the oxygen scavenging rate decreases, and the oxygen scavenging reaction stops halfway.
Further, iron was dissolved in sake and coloring of sake was unavoidable, which was difficult to carry out on an industrial scale.

[Problems to be solved by the invention]

The present invention uses iron powder, ascorbic acid, erythorbic acid or catechol and the like as a main component of a deoxidizer in a closed container together with sake, without causing a situation in which the oxygen scavenger elutes even when contacted with sake Deoxidizing reaction is performed continuously, small containers such as bottles and cans can be easily filled, and it looks good in appearance. It relates to the preservation method of raw sake, raw sake, and general sake before and after shipment.

[Means for solving problems]

In order to solve the above problems, the present inventors pack an oxygen absorber in a blister of a packaging material as shown in the drawing, and further isolate this blister with a breathable material and place it in a space in a sealed container. The present invention was invented and the present invention was completed. That is, according to the present invention, the air-permeable material surface of a laminated material composed of a substantially gas-impermeable material and a gas-permeable material is aligned with the opening of a cup-shaped plastic container containing an oxygen scavenger, and a gas-permeable adhesive material is interposed. Sake is sealed and stored in a container formed by stacking and bonding and closing the opening so as to package a so-called blister-packaged oxygen absorber isolated from the inner lid of the cap with a breathable material. It is a method of storing sake that is characterized by that.

In the present invention, a cup-shaped molded container made of polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polyamide, polystyrene or the like is used as the cup-shaped plastic container forming the blister containing the oxygen scavenger. Further, as a laminated material for sealing the opening of the cup-shaped molded container, for example, an air-permeable material composed of paper, a non-woven fabric of plastic, a microporous film, and the like, for example, polyethylene terephthalate, polyamide, polyvinyl alcohol, polyethylene, polypropylene, ethylene. -A laminated material with a substantially non-permeable material composed of a plastic film such as a vinyl acetate copolymer can be used.

The blister package can be formed by aligning the air-permeable material surface of the above-mentioned laminated material with the opening of the cup-shaped molding container and adhesively sealing it with a gas-permeable adhesive material. The air-permeable adhesive material is preferably a heat-fusible resin having a low softening point, and a coating layer of the heat-fusible resin is provided on the air-permeable material surface of the air-permeable material of the laminate material, or the heat-fusible resin Heat-sealing becomes possible by laminating and adhering the films and opening the holes.

The blister package of the oxygen scavenger according to the present invention enables ventilation inside and outside the blister through the cross section of the air-permeable material around the periphery of the laminated material that seals the cup-shaped plastic container.

FIG. 1 shows a blister-packed oxygen scavenger in which upper (1) and lower (3) packaging materials with low air permeability and moisture permeability are used, and between them (2) breathable packaging material. By filling the oxygen absorber packed in a blister into a cap having a hole at the bottom, these problems can be solved. That is, by inserting an air-permeable packaging material between packaging materials having low air permeability and low moisture permeability, deoxidizing oxygen from the side surface of the packaging material can prevent elution of the oxygen absorber in alcoholic beverages.

FIG. 2 shows that the blister is further filled inside the cap, and then the cap is combined with a microporous film or a plastic film having a sealing property such as polyethylene, polyester, nylon, aluminum, polypropylene, etc., to form a hole in the lower part of the cap. The film is sealed so that the alcohol and the oxygen scavenger do not come into complete contact with each other.

Here, the cap material is polyethylene, which is normally used.
The microporous film sealed in this cap is generally called a microporous film and has a Galley air permeability of 0.01.
~ 10000sec / 100ml, preferably 1 ~ 1000sec / 100ml, which allows only gas to permeate without passing liquid under normal pressure, for example, Jyular guard (US, manufactured by Celanese), FP-2 (manufactured by Asahi Kasei), NOP (Japan Petrochemical), Nitoflon NTF (Nitto Denki Kogyo), Serpore NWO1 (Sekisui Chemical) Gore-Tex (Conne Gore) Tyvek (Dupont)
Etc.

In the present invention, a plastic film or sheet made of polyethylene, polyethylene terephthalate, vinyl chloride or the like is used as the packaging material having a low air permeability and a low water vapor transmission rate shown in (1) and (3) of FIG. As the packaging material having air permeability shown in (2), paper, non-woven fabric, microporous film, etc. are used. Furthermore, the air permeability of (1),
It is also possible to use a combination of (2) and (3) by using a microporous film in (2) without using a packaging material with low moisture permeability.

As the oxygen scavenger, an ordinary oxygen scavenger such as iron-based, hydrosulfite-based ascorbic acid-based, etc., which is molded into an appropriate shape such as powder, granules, granules, and doublets, is used.

〔Example〕

 The present invention will be described below with reference to examples.

Example 1. A glass bottle containing 1.8 bottles of raw sake once fired was opened and a blister pack-shaped oxygen scavenger was filled therein, and the bottle was sealed and stored at room temperature of 25 ° C. for 150 days.

After 150 days, the sensory evaluation by Kikishu was excellent in total quality, the absorbance showing coloring was 0.033 at 430 mμ, and the degree of aging was 3.DG.
(3. Deoxyglycosone) 0.083 mM, dissolved oxygen 0.03 ppm
The aging did not proceed, and the quality was maintained well. On the other hand, raw sake that does not use oxygen scavenger is not possible due to the comprehensive quality of kikishu.
Absorbance was 0.07, dissolved oxygen was 5.6 ppm, and 3.DG was 0.427 mμ, and the quality was deteriorated due to the appearance of old aroma due to the progress of coloring and aging.

Example 2. In a 200 cc sample bottle, 150 cc of commercially available sake was put, and the back of the cap was filled with a blister pack-shaped oxygen scavenger, and the deoxidation rate of the headspace and the dissolved oxygen of sake were measured. As a result, the oxygen in the headspace was 0.01% or less after 4 days, and the dissolved oxygen in sake was 0.02 ppm.

Example 3. Put 200 cc of commercial sake in a 200 cc sample bottle and put it in a blister pack-shaped oxygen scavenger and OP coated oil-resistant paper / PE / warif / P
The oxygen absorber packed in the packaging material made of E was immersed for 30 days, and the coloring degree was compared by the absorbance.

As a result, the absorbency of sake immersed in a blister pack-shaped oxygen scavenger was 0.03 at 430 mμ and no coloring was observed.
Absorbing the oxygen absorber packed in a packaging material consisting of coated oil-resistant paper / PE / warif / PE, the absorbance was
It was colored yellow at 0.07.

[Brief description of drawings]

FIG. 1 shows a blister pack-shaped oxygen absorber used in the present invention. FIG. 2 shows a figure in which the oxygen absorber is double-wrapped in a cap. FIG. 3 is a cross-sectional view for explaining a preferred specific example when the present invention is applied to a container such as a bottle and a can. The symbols in the figure are as follows. 1 …… Packaging material with low air permeability and moisture permeability 2 …… Packing material with air permeability 3 …… Packaging material with low air permeability and moisture permeability 4 …… Oxygen scavenger 5 …… Cap (inner lid) 6 ... Blister pack-shaped oxygen absorber 7 ... Air-permeable packaging material (microporous film, etc.) 8 ... Hole under cap 9 ... Space 10 ... Outer lid 11 ... Container

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Claims (1)

[Claims] 1. A cup-shaped plastic container containing an oxygen scavenger, wherein an opening of a cup-shaped plastic container is laminated with an air-permeable adhesive material on the air-permeable material surface of a laminated material made of a substantially non-air-permeable material and an air-permeable material. Preservation of sake by sealing and storing the sake in a container in which the oxygen absorber in a blister package by being adhered and closing the opening is isolated and stored in the cap inner lid with a breathable material Method.