• The monthly packaging world
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• s.136
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• pp.58-69
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• 2004

• The monthly packaging world
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• s.261
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• pp.84-88
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• 2015

• The monthly packaging world
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• s.146
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• pp.110-116
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• 2005

• The monthly packaging world
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• s.102
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• pp.229-234
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• 2001

• The monthly packaging world
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• s.111
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• pp.66-71
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• 2002

• The monthly packaging world
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• s.124
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• pp.54-59
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• 2003

• The monthly packaging world
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• s.126
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• pp.76-77
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• 2003

• The monthly packaging world
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• s.97
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• pp.132-139
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• 2001

• KOREAN JOURNAL OF PACKAGING SCIENCE & TECHNOLOGY
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• v.18 no.1_2
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• pp.27-32
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• 2012

There are many possibilities that recycled papers adulterate contaminants during the process. The objective of this research was to evaluate safety of paper-based packaging materials for food, especially commercial pizza boxes in Korea. Ultimately, we compared recycled and non-recycled commercial paper packaging materials. This study was based on Korean Food and Drug Administration (KFDA) regulation. PCBs were measured by GC-ECD. Arsenic and lead were analyzed using an ICP-MS. Formaldehyde was determined by LC-MS. Fluorescent materials were detected by UV lamp. The result of this study shows that non-recycled paper packaging materials meets all the tested hygienic specifications for food packaging materials, whereas recycled paper-based paperboard box may be contaminated by fluorescent whitening agent. Though these results need to be further studied, it is recommended to avoid using recycled paper in direct contact with food when used in food packaging.

• Journal of Korean Clinical Nursing Research
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• v.25 no.3
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• pp.333-341
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• 2019

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.