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한국포장학회지 [Journal of Korea Society of Packaging Science & Technology]
연구논문
단백질 기반 Oxygen High Barrier 소재의 전과정평가를 통한 환경 영향 측정
한국포장학회 한국포장학회지 Vol. 25 No. 1 2019.04 pp.1-10
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4,000원
Environmental evaluation of two different oxygen high barrier films were performed using life cycle assessment. One of the films (traditional film) was composed of aluminum oxide coated PET film, ink, LDPE and LLDPE. Another film (new film) was consists of PET, ink, protein based coating material, LDPE, LLDPE. Main layer to achieve the high oxygen barrier for traditional film was aluminum oxide coated PET film, whereas the protein based coating material act as oxygen barrier layer for new film. Functional unit of this study was 1000 pouches made of traditional and new film. System boundary was factory to gate. The results of this study revealed that the new film shows better environmental performance for most of impact indicator than traditional film, except marine eutrophication and fine particulate matter formation due to extra coating process in new film system.
냉동식품용 포장재 현황 및 냉동 과정 중 포장재 내부 온도 변화에 관한 연구
한국포장학회 한국포장학회지 Vol. 25 No. 1 2019.04 pp.11-16
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4,000원
This study analyzed various packaging materials and types for frozen foods and the effects of packaging materials on temperature changes during frozen process. Pouches with different film thickness were prepared and placed in an IQF freezer, then the temperature inside pouches measured using a deep thermometer. The most common types of primary packaging for frozen foods in the marketwas plastic pouches with polyethylene or polyamide/polyethylene multilayer materials. The temperature change inside of packaging was delayed with film thickness increased. As the size of packaged food increased, the temperature change inside the food was slowed down. In addition, the pouches with air inside took more time to reach -30oC compared to pouches with less air during frozen process. This study provides information on packaging materials and types for frozen foods and preliminary data of temperature change by different types of packaging.
4,000원
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