• 한국포장학회지
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• 제27권1호
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• pp.9-16
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• 2021

The present study was conducted to accomplish management efficiency by preparing preemptive measures for consumer dissatisfaction and overcome risks caused by Global Warming through studies of model cases in packaging. Through this study, we made it possible to find a way for companies to prepare for Global warming and consumer dissatisfaction. By contributing to eco-friendly packaging, we are trying to preemptively respond to recent major issues through packaging. Through this experiment, we tried to measure the degree of penetration of Plodia interpunctella H. larva into the insect repellent film produced by printing Ink containing a natural repellent. The control experiment was conducted with an untreated LDPE film to which no insect repellent was applied. The numbers decreased from 17 to 7 when the film was processed with repellent to show experimental results verifying effects of repellent by decrease in 10 (58.8% Decrease). Such results show that it is safe when the film is unfolded but in the case where the film is folded, the Plodia interpunctella H. punches through the film to lead to consumer dissatisfaction and it suggests that this can bring on risks to corporate management. Considering that most of the film is folded in the case of PE bag packaging, the direction which the corporations should take in terms of preparing for climate change countermeasures and consumer dissatisfaction has been clarified. Due to it receiving satisfactory results in safety rest results for printing film applied with pest repellent as well as the Quality analysis to test repellent contents of repellent film, it is certain that the importance of repellent method in packaging will increase in preparing for consumer dissatisfaction and actions against climate change henceforth.

• 월간포장계
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• 통권337호
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• pp.84-88
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• 2021

• 한국식품저장유통학회지
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• 제22권5호
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• pp.623-628
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• 2015

절단 배추의 포장재에 따른 저장 중 품질변화를 알아보기 위해 배추($3{\times}3cm$)를 PP film, OPP film, LDPE film백에 각각 넣은 후 $5^{\circ}C$에서 4주 동안 저장하면서 저장 특성을 조사하였다. 중량은 0.03~0.24%의 범위로 감소하였으며, PP film 포장구가 가장 낮은 감소율을 보였다. 가용성 고형분 함량은 $0.03{\sim}0.2^{\circ}Brix$의 범위로 감소하였으며, PP film 포장구가 낮은 감소율을 보였다. 적정산도는 모든 처리구에서 증가하다가 감소하는 경향을 나타냈으나, PP film과 OPP film 포장구의 증가율이 낮았다. 색도값은 저장기간이 길어질수록 전체적으로 감소하였으나, 포장재에 따른 유의적인 차이는 나타나지 않았다. 관능검사 결과 역시 포장재에 따른 유의적인 차이가 나타나지 않았으나, 외관상 품질특성은 PP film 포장구가 다른 포장보다 우수하였다. 따라서 투명한 PP film으로 절단배추를 포장하여 저장 및 유통하는 것이 선도 및 품질 유지에 효과적이라고 사료된다.

• 식품과학과 산업
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• 제50권2호
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• pp.12-26
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• 2017

Processing steps such as washing and cutting, involved in preparing fresh-cut produce causes tissue damage, leading to rapid quality deterioration. Major defects of fresh-cut produce are discoloration, softening, off-odor development, and microbial growth. Packaging of fresh-cut produce has been changed to reduce these quality problems. Flexible packaging film is widely used to pack fresh-cut produce. Vacuum packaging was the popular packaging method in the beginning of fresh-cut industry in Korea. Vacuum packaging creates high $CO_2$ and low $O_2$ levels to control browning of fresh-cut produce. However, these conditions induce some visual defects and off-odor development. Discoloration problem was also found when fresh-cut produce was packaged with conventional packaging film or plastic tray. Modified atmosphere (MA) packaging is effective for prolonging shelf-life of fresh-cut produce by decreasing $O_2$ and increasing $CO_2$ concentration in the package. Retail MA packaging using different oxygen transmission rate (OTR) film and micro-perforated film has started to be applied to fresh-cut produce in Korea. Proper MA package design that provides optimum range of $O_2$ and $CO_2$ partial pressures is one of the major challenges in the industry. An initial package flushing with $N_2$ or an low $O_2$/high $CO_2$ atmosphere is also used to more rapidly establish steady-state MA condition. Film OTR and $O_2$ flushing affects the fermentative volatile production, off-odor development, electrolyte leakage, discoloration, $CO_2$ injury, microbial population of fresh-cut produce. There is also a demand for convenient packaging to attract consumers. Rigid fresh-cut produce container for retail market has increased since the packaging provides excellent protection from physical damage during transport. Rigid tray used as actual serving vessel for the consumer is increasing in Korea. The tray with flexible lid to wrap or seal fresh-cut produce is more and more gaining popularity. Further practical technology to control quality change and microbial growth for each fresh-cut product has been studied since various fresh-cut items were required. The fresh-cut industry also focuses on searching for more convenient and environmentally friendly packaging.

• 한국포장학회지
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• 제26권1호
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• pp.19-23
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• 2020

Al-laminated packaging film incorporating ascorbic acid or tocopherol at inner food contact layer was tested in the potential to improve antioxidative preservation of powdered infant formula under CO₂-enriched atmosphere. Product of 200 g was packaged with the packaging film containing 0.3% antioxidant in sealant layer of low density polyethylene and stored at 30℃ for 286 days with periodic measurement of package atmosphere and product's quality attributes. The CO₂-flushed package resulted in shrinkage of tight contact between the product and the film not allowing gas sampling of package atmosphere after 140 days. Package of tocopherol-incorporated film allowed some ingress of oxygen after 112 days presumably due to its weakening of heat-seal area. The increased oxygen concentration in the tocopherol-added film package led to the concomitant increase of peroxide value, an index of lipid oxidation. On the other hand, packaging of ascorbic acid-added film pouch could suppress lipid oxidation marginally in consistent manner compared to control package without any antioxidant.

• 한국포장학회지
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• 제24권3호
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• pp.149-157
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• 2018

Low density polyethylene (LDPE) has been researched in many industrial applications, and LDPE/zeolite 4A composites has been extensively studied for many applications such as microporous, breathable film and so on. LDPE/zeolite composite have a great potential for carbon dioxide adsorption film due to its high adsorption ability. In this study, LDPE/zeolite 4A composites with various contents were prepared by melt mixing process, and co-extrusion process was applied to develop a $CO_2$ adsorption conventional film and foamed film. The thermal, rheological, mechanical, physical and morphological properties of composite films has been characterized, and $CO_2$ adsorption of the composite films evaluated by thermogravimetric analysis (TGA) and the performance was found to be about 18 cc/g at 30.9 wt% of the zeolite content.

• 월간포장계
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• 통권107호
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• pp.180-184
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• 2002

• 월간포장계
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• 통권341호
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• pp.89-92
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• 2021

• 월간포장계
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• 통권339호
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• pp.58-67
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• 2021

• 한국식품저장유통학회:학술대회논문집
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• 한국식품저장유통학회 1999년도 임시총회 및 제14차 학술발표회 진행표 및 발표논문 초록집
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• pp.11-22
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• 1999

The functional packaging film, that keeps the freshness of the fresh produce, has composed of the ferro fluid particles, chitin and chitosan. The film exhibited selectivity in permeability for carbon dioxide and ethylene gases. Antagonistic effect of the film for Fusarium, Botrysphania, Altanaria and E. coli was excellent. The film kept the favorable taste of Kimchi and Korean strawberry well.