Oxygen inhalation bottle cap gasket and preparation method and application thereof

Abstract

The invention discloses an oxygen inhalation bottle cap gasket and a preparation method and application thereof. The invention firstly discloses the oxygen absorbent which is prepared from an oxygen absorbent main agent and an oxygen absorbent auxiliary agent, the oxygen uptake main agent is selected from a composition of (a) and (b) or (c), wherein (a) comprises at least one of ascorbic acid, gallic acid, tea polyphenol, thymol, epicatechin and alpha-tocopherol; (b) comprising sodium carbonate and / or citric acid; (c) a sodium or potassium salt comprising ascorbic acid and / or gallic acid; the oxygen absorption auxiliary agent comprises activated carbon and / or zeolite. The oxygen inhalation bottle cap gasket is composed of a food contact layer and a bottle cap contact layer. Wherein the bottle cap contact layer is prepared by mixing resin serving as a plastic matrix with the oxygen absorbent; the food contact layer is made of resin. According to the invention, raw materials of the oxygen absorbent are screened, processing condition optimization and performance test are carried out on the prepared gasket, and application results show that the gasket has good storage and fresh-keeping effects on products with medium, low and high top gaps.

Description

technical field [0001] The invention relates to an oxygen-absorbing bottle cap gasket, a preparation method and application thereof, and belongs to the fields of food packaging and food storage. Background technique [0002] Juice is rich in nutrients, including vitamin C, phenolic substances, organic acids, etc., which are easily oxidatively degraded by the influence of oxygen. In recent years, people's admiration for clean labels and minimal processing has made the shelf life of juice an urgent problem to be solved. How to maintain the quality of juice and even extend its shelf life without adding food preservatives and reducing the intensity of juice processing is what we need solved problem. [0003] At present, the common packaging form of juice on the market is bottled juice, and the main forms of oxygen are: (1) Dissolved oxygen refers to the oxygen dissolved in the juice system in juice packaging. (2) Oxygen permeation refers to the oxygen that penetrates into the ...

AI Technical Summary

Problems solved by technology

However, they have certain problems in product application and consumer acceptance: the consumer acceptance of the method of using antioxidants to reduce oxygen damage is gradually decreasing; the non-thermal sterilization processing of juice has low intensity and low loss of nutrients. However, its low processing intensity also brings certain problems, such as insufficient removal of dissolved oxygen in the juice and incomplete killing of microorganisms; in addition, the cost of the nitrogen flushing filling plant line is relatively high, and there are also problems of nitrogen flushing equipment and fruit juice The problem of low adaptability between filling production equipment, so there is still a long way to go for nitrogen flushing filling to be popularized in fruit juice products

However, its application in some products, especially fruit and vegetable juices, is limited to a certain extent, because they are easy to cause the alarm of metal detectors in the production line of fruit and vegetable juices, and at the same time, metals also have disadvantages such as accidental ingestion and affecting food flavor.

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