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김형준,방대영,김민호,이근택 한국포장학회 2018 한국포장학회지 Vol.24 No.3
This study aimed at examining the suitability of Tenax® for the migration testing of food packaging materials, which is currently approved in the EU as a dry food simulant. The results are used as a basis to examine the feasibility of introducing Tenax® to Korean regulation. The OMVs of test specimen into various solvents (diethyl ether, ethanol, pentane, and acetone) after exposure to 100oC for 1 hr were compared. Diethyl ether showed the highest OMV (1.33 mg/dm2) among the solvents tested. When the tests were conducted with different amounts of Tenax® of 2, 4, or 8 g per specimen, the OMVs were 0.75, 1.33 and 1.40 mg/dm2, respectively. The OMV obtained with a closed system after wrapping with aluminum foil showed a significantly higher OMV (1.61 mg/dm2) than that without aluminum wrapping (1.318 mg/dm2 w) and an open system without lid (1.06 mg/dm2). The specific migration rates of surrogates spiked in the polyethylene test film and paper samples into Tenax® were compared with those into liquid food simulants including 95% ethanol and n-heptane, and actual foods such as starch, skim milk, and sugar. In general, the specific migration levels of surrogates into Tenax® were similar compared with n-heptane, however those were significantly higher than into actual foods. These results suggest that Tenax® may be used as a food simulant for the long-term preservation of dried foods and paper products. However, more studies need to be conducted to investigate the factors influencing the migration into Tenax®, such as the types of foods and packaging materials tested, migration conditions, and surrogates properties etc.
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A Short Review of Light Barrier Materials for Food and Beverage Packaging
Seongyoung Kwon,Aungkana Orsuwan,Nattinee Bumbudsanpharoke,윤찬석,Jungwook Choi,고성혁 한국포장학회 2018 한국포장학회지 Vol.24 No.3
Photo-oxidation is one of the main causes of food deterioration of great variety of foods, such as dairy products, nuts, meat products, and wine. It causes a loss of both nutritional value and sensorial quality of products and may even leads to the formation of toxic compounds. Active packaging for food and beverages has been investigated and developed with embedding light absorbers or blocking materials into the plastics. In recent years, several novel light barrier materials have been proposed as an alternative option for different applications. This article reviews the up-to-date technology in light absorber and blocking material with special emphasis on chemical compound and mechanism. Inorganic, organic, hybrid organic-inorganic, and natural light absorbers were scoped. The challenges and future perspectives of light barrier materials are also discussed.
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김철환,조성환 한국포장학회 2007 한국포장학회지 Vol.13 No.3·4
식물성 천연항균제인 BAAG와 기능성 무기계 첨가제인 zeolite를 이용하여 항균 및 ethylene 가스 포집 능력을 갖 는 포장원지를 제조하였다. 기능성 포장원지의 인장강도와 파열강도는 항균제와 zeolite를 첨가하지 않았을 때보다 다 소 감소하는 경향을 나타내었고, 반면에 강성과 인열강도는 항균제와 zeolite를 첨가하지 않았을 때보다 증가하는 경향 을 나타내었다. 과채류 숙성 호르몬인 ethyene 가스는 포장 원지에 zeolite를 첨가하면서 빠르게 감소하였다. 포자원지 의 발수성은 중성 사이즈제인 AKD를 첨가하면서 높은 내 수성을 나타내었다. Functional packaging paper containing botanical antimicrobial agent (BAAG) and inorganic zeolite was developed for antimicrobial activity and adsorption of ethylene gas of the paper. The physical properties of the packaging paper showed different characteristics with addition of BAAG and functional fillers: both tensile strength and burst strength were decreased, but both stiffness and tear strength were slightly increased. Zeolite also contributed to fast removal of ethylene gas known as aging hormone of fruits and vegetables. Alkyl ketene dimer (AKD) was greatly effective to endow the packaging paper with water repellency property.
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