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Labthink Instruments Co., Ltd.
Oxygen Permeability Test Method of Pudding Cups

Oxygen Permeability Test Method of Pudding Cups

Product catalog summary

Introduction

This document discusses the oxygen barrier properties of pudding cups, which are critical for maintaining product shelf life and quality. It highlights the importance of measuring oxygen transmission rates (OTR) through packaging materials, particularly plastic cups used for pudding and similar products.

Significance of Oxygen Barrier Properties

Pudding cups are typically made from plastic materials that vary in oxygen permeability. High oxygen transmission can lead to nutrient loss, oxidation, and deterioration of the product. Therefore, understanding and controlling the oxygen barrier characteristics of packaging is essential for quality control and shelf life extension.

Testing Methods for Oxygen Transmission Rate (OTR)

The article introduces an oxygen transmission rate test method using coulometric sensors, which provide precise and reliable measurements of oxygen permeability. This method is referenced against standards such as ASTM F1307-02 and involves:

Preparing specimens by sealing the plastic pudding cup material with adhesives and placing it in a controlled test environment.
Using a test apparatus that controls temperature and humidity automatically to simulate storage conditions.
Measuring oxygen transmission through the specimen using coulometric sensors with high sensitivity and accuracy.

The test system includes features such as automated control of temperature and humidity, a test block designed for hydrodynamic stability, and simultaneous testing of multiple samples to reduce variability.

Instrumentation and Technological Advances

The Labthink C230H instrument is highlighted as an advanced solution for OTR testing. It replaces traditional sensors with an independent coulometric sensor that improves precision by an order of magnitude (accuracy to 7 x 10^-4). The instrument maintains stable temperature and humidity conditions, enhancing test reliability.

Design improvements include a test block with hydrodynamic flow to minimize differences between samples and three identical chambers for simultaneous testing, supporting consistent and reproducible results.

Procedures and Best Practices

Key procedural steps include:

Sealing the specimen properly to avoid leaks.
Rapidly preparing the sample and placing it in the test fixture.
Setting and maintaining test parameters such as temperature and humidity according to the product’s storage conditions.
Using automated systems to start and monitor the test, ensuring consistent environmental control.

Conclusions and Recommendations

Effective measurement of oxygen transmission rates is crucial for guaranteeing the quality and shelf life of pudding cups and similar packaging. The coulometric method and advanced instrumentation like the Labthink C230H provide reliable, precise, and automated testing capabilities.

Manufacturers are encouraged to adopt these testing methods to monitor and control packaging barrier properties, ensuring product integrity during storage and transportation.

Catalog excerpts

Oxygen Permeability Test Method of Pudding Cups-1

Oxy en Perm ability T t yge P mea Test Met d of Pu ding Cu tho f udd g ups Labthink In nstruments s Co., Ltd. Phone: + 8 86‐531‐85068566 Email: trad E [email protected]

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Oxygen Permeability Test Method of Pudding Cups-2

ABSTRAC CT Pudding cu ups need t have ef to ffective oxy ygen barrier prop perties to guarantee th quality of its he f shelf life. This article introduce an oxy es ygen transmission rate test m method to te the pudd est ding cup, i.e. the coulometric method. Th test princ c he ciple, instrument features, s specification and tes ns, sting procedures are all incl luded in this article, wh s hich may provid reference for oxyge permeab de e en bility test of pack kaging conta ainers. me entioned in this art n ticle were performed d acc cording to ASTM F13 307-02: Sta andard Tes st Me ethod for Ox...

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Oxygen Permeability Test Method of Pudding Cups-3

The oxygen permeabil n lity represen the oxy nts ygen barrier prop perty of a pudding cup. Pudding c cups need to hav an effecti oxygen barrier prop ve ive perty to guarantee the quality of the prod y duct’s shelf life. This article introduced an OTR tes of a pudd st ding cup using th coulomet method (equal press he tric ( sure method). ADVANCEM MENTS IN P PERMEATIO ON MEASUREM MENT TECH HNOLOGY Labthink C C230H Replacing th traditiona coulometr sensor wiith a he al ric totally new and indep pendent designed oxy ygen coulometric sensor inc c creased the sensitivity and precision o Labthink C230H...

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