J Korean Clin Nurs Res.  2019 Dec;25(3):333-341. 10.22650/JKCNR.2019.25.3.333.

Study on the Shelf Life of Sterilized Products according to Packaging Materials

• Chang SJ
• Jeong JH
• Choi KM
• Kim MY
• Park JH
• Jeong NY

• KMID: 2470648
• DOI: http://doi.org/10.22650/JKCNR.2019.25.3.333

Abstract

PURPOSE
The purpose of this study was to determine the most appropriate shelf life for sterilized products according to their packaging material.
METHODS
Samples were prepared to target six nursing units in one general hospital in Seoul. After steam and E.O gas sterilization, sterilized product, samples were supplied to wards. Data collection was conducted for 3 months, after the expiration date of 3 months had passed for samples packaged with crepe paper and nonwoven wraps. For samples packaged with paper-plastic pouches, data collection conducted for 3 months when the expiration date of 9 months had passed. The sterilized products were collected and tested for microbial contamination. Identification of the storage environment was done as samples were collected.
RESULTS
This study confirmed that the storage environment met international standards such as CDC, except for temperature. For steam sterilized crepe paper packaging samples and steam and E.O gas sterilized for nonwoven packaging samples no contamination in all products was found for 3 months past the expiration date. However, in the E.O gas sterilized paper-plastic pouch packaging sterile samples, Gram-positive bacilli were detected in one sample from a surgical intensive care unit at 45 weeks and another sample from an operating room at 47 weeks. Furthermore, the results did not show any microorganisms for up to 52 weeks in all products.
CONCLUSION
According to the results of this study, sterilized product packaging made with crepe paper and nonwoven wraps is better able an extended shelf life from 3 months to 6 months, reducing unnecessary costs.

Keyword

Packaging Materials; Sterilization; Shelf Life

MeSH Terms

Centers for Disease Control and Prevention (U.S.)
Critical Care
Data Collection
Hospitals, General
Nursing
Operating Rooms
Product Packaging*
Seoul
Steam
Sterilization
Steam