Innovation of oxygen indicator for packaging leak detector: A review

Abstract

Oxygen is one of the factors causing the food product damage. Therefore, vacuum packaging or modified atmosphere packaging (MAP) is an effective solution offered. However, there is always a risk of leakage in the package especially in the packaging process, in the distribution process, and by the insect or rodent damage. Therefore, an oxygen indicator that helps retailers and consumers to detect leaks and to prevent them from buying leaking products is created. Its working principle is to show a color change that reflects changes in the composition of the gas. The use of oxygen indicators is beneficial not only for consumers but also for manufacturers of products who use this indicator for loyal consumers to maintain the consumer credibility with their products. Furthermore, technological advances encourage researchers to improve several important aspects of oxygen indicators such as product safety application, product cost retrenchment, ease of manufacture, and environmental friendliness. This article reviews the development of oxygen indicators and the advantages and disadvantages of each type of oxygen indicator and provides information for researchers and the MAP industry on the types of oxygen indicators that are well developed in the future.

Spectral Change of Curcumin in DMSO–NaOH Solution after Exposure to Air

“…It is also theoretically conceivable to utilize this solution to determine whether there is air (oxygen) in space [14]. It may be an effective air (oxygen) detector that is used in the packaging of food and beverages, which helps to prevent the product from going bad [15]. Detection of oxygen pollution is also required to halt the corrosion that is occurring inside the pipeline system [16].…”

Softness indicator made from tapioca and ammonium molybdate for avocado

“…Examples of external indicators are time indicators, temperature indicators [1], microbial growth indicators [2][3][4][5]. While examples of internal indicators are oxygen indicators [6], carbon dioxide indicators, pathogenic bacteria indicators and microbial growth indicators [7].…”

Supraparticles with a Mechanically Triggerable Color‐Change‐Effect to Equip Coatings with the Ability to Report Damage

“…[2,4] In addition to the increasing development of high-performance packagings, there are also a large number of studies that deal with the development of intelligent packagings. [5,6] This involves the development of intelligent systems, consisting of sensors and indicators, respectively, that can, on the one hand, record the actual state of the packaging throughout the entire supply chain (via sensors) and, on the other hand, provide an irreversible indication of changes regarding the food quality (via indicators). [1,2,[5][6][7] Sensors are described as instruments that are able to detect an event or a change in their environment, to localize it, or even to quantify it in order to send signals that this change can be investigated in terms of its physical or chemical nature.…”

“…[5,6] This involves the development of intelligent systems, consisting of sensors and indicators, respectively, that can, on the one hand, record the actual state of the packaging throughout the entire supply chain (via sensors) and, on the other hand, provide an irreversible indication of changes regarding the food quality (via indicators). [1,2,[5][6][7] Sensors are described as instruments that are able to detect an event or a change in their environment, to localize it, or even to quantify it in order to send signals that this change can be investigated in terms of its physical or chemical nature. [1,2] These types of sensors can be, for example, gas sensors, fluorescence-based oxygen sensors, or biosensors.…”