Test method for oxygen resistance of plastic packaging containers for fish oil health products

Abstract: with the improvement of living standard, people are no longer unfamiliar with fish oil as a health food What kind of packing container can ensure the good quality of fish oil within the shelf life is a common concern of health food enterprises This paper discusses the method of determining the oxygen resistance of packaging containers by using ox2 / 231 oxygen permeability tester from the aspect of the barrier of packaging materials, which provides a reference for enterprises to select the appropriate packaging materials Key words: barrier, oxygen resistance, oxygen permeability, oxygen permeability, oxygen permeability tester, packaging container, fish oil, health products, isobaric method 1, meaning, health and disease prevention has become one of the life goals people pursue The change of life attitude has led to the prosperity of health products industry Fish oil is a kind of health care products Fish oil soft capsule is rich in essential unsaturated fatty acids, such as EPA, DHA, etc it can help regulate blood lipid, reduce blood concentration, prevent thrombosis, improve vision and memory The main functional components of fish oil, such as EPA, DHA and other unsaturated fatty acids, are easy to be oxidized in the presence of oxygen, high temperature and light due to the particularity of their molecular structure, which leads to the reduction or even loss of the original functions of fish oil Therefore, the appropriate packaging and storage environment is an important factor affecting the quality of fish oil The characteristics of fish oil that needs to be kept away from light and not resistant to high temperature can be met by selecting opaque and opaque packaging containers and controlling the storage and transportation conditions, while the amount of oxygen that fish oil can contact within the shelf life is very related to the oxygen resistance of the packaging containers The barrier property of packaging materials depends on its material structure, processing technology and other factors, which cannot be determined by naked eyes or simple calculation Therefore, this paper introduces a test method that can accurately test the oxygen resistance of fish oil packaging containers 2 The test is based on the oxygen permeability, which is the physical index to characterize the oxygen resistance performance of packaging materials There are two commonly used test methods: isobaric method (coulometric method) and differential pressure method The most commonly used method is isobaric method At present, there is no domestic standard for testing the oxygen permeability of packaging containers The testing process of this paper is based on the American Standard ASTM f1307 3 The common packaging materials of fish oil soft capsule are glass bottle and plastic bottle This paper takes a plastic bottle for packaging fish oil soft capsule as an example to test its oxygen transmission Fig 1 common packaging form of fish oil soft capsule 4 The testing equipment used in this paper is ox2 / 231 oxygen transmittance tester in accordance with ASTM f1307 standard, which is independently developed and designed by Jinan Languang Electromechanical Technology Co., Ltd Fig 2 the principle equipment of ox2 / 231 oxygen transmittance tester 4.1 is developed based on the principle of isobaric method When testing the container type sample, the sample is sealed in a closed space after being sealed on the sample rack During the test, oxygen flows outside the container and high-purity nitrogen flows inside the container Under the effect of concentration difference, the oxygen outside the container will penetrate into the container through the container and be carried to the sensor by the flowing nitrogen for test and analysis, so as to obtain The oxygen transmittance of the container sample and other results 4.2 the test range of equipment parameter container sample is 0.0001 ~ 10 cm 3 / PKG · D, and the resolution is 0.0001 cm3 / PKG · D The test range of the equipment is wide and the resolution is high; the test range of film and sheet samples is 0.01 ~ 1000 cm 3 / M 2 · D and the resolution is 0.01 cm3 / m2 · D The equipment is equipped with three test chambers, and the average value of three samples can be obtained in one test, which improves the test efficiency of the equipment The temperature control range of the equipment is 15 ~ 55 ℃, and the temperature control accuracy is ± 0.1 ℃; the humidity control range is 0% RH, 15% RH ~ 90% RH, 100% RH, and the humidity control accuracy is ± 1% RH It can meet the requirements of different test conditions of users Provide standard membrane calibration quickly to ensure the accuracy and universality of test data Support Lystem Gamma Laboratory data sharing system, unified management of test results and test reports 4.3 scope of application (1) this equipment is applicable to the test of oxygen transmittance of containers, films, sheets and other packages Containers include bottles, bags, cans, boxes and barrels made of plastic, rubber, paper, paper plastic composite, glass, metal and other materials, such as Coke bottles, peanut oil barrels, Tetra Pak packaging, jelly cups, yogurt cups, three piece metal cans, toothpaste cartilage, cosmetics plastic packaging, etc Film type includes all kinds of plastic film, plastic composite film, paper plastic composite film, CO extrusion film, aluminum coating film, aluminum foil, aluminum plastic composite film and other film-like materials Sheet materials include various engineering plastics, rubber and other sheets, such as PP sheet, PVC sheet, PVDC sheet, etc (2) The equipment can meet many national and international standards, such as ASTM f1307, ISO 15105-2, GB / T 19789, ASTM d3985, ASTM f2622, ASTM f1927, JIS k7126-2, ybb00082003, etc 5 The test process (1) seal the specimen to be tested on the sealing device of the specimen holder with fast adhesive, then install the specimen holder in the equipment, and seal the specimen and the sealing device with aluminum foil sealing bag (2) Set the test temperature, test humidity and other parameter information, click the test option, and the test starts (3) According to the change of oxygen concentration, the equipment automatically calculates and displays the test results 6 The results showed that the oxygen permeability of the plastic container for fish oil soft capsule packaging was 0.00631 cm 3 / (PKG · d) 7 Conclusion the special composition of fish oil requires that its packaging materials should have high barrier and good shading, and avoid contact with high temperature environment in transportation and storage The ox2 / 231 oxygen permeability tester can be used to test the oxygen resistance performance of the commonly used packaging containers for fish oil packaging The equipment is easy to operate, the test process is simple, the accuracy of the test results is good, and the test efficiency is high In addition, ox2 / 231 oxygen transmittance tester can also be used to test the oxygen resistance of film, sheet and other types of packaging materials, so as to provide data support for enterprises in the selection, quality control, supervision and other aspects of packaging materials Jinan Languang mechanical and Electrical Technology Co., Ltd is driven by scientific and technological innovation, and has always been committed to providing professional packaging testing equipment and intimate packaging testing services for customers around the world, providing thousands of barrier testing services for customers every year To learn about the relevant testing equipment information and testing service content, you can log in Jinan Languang company to check or call directly for consultation Labthink is looking forward to enhancing technical exchanges and cooperation with enterprises and institutions in the industry!