플라스틱 포장재의 주요 기능은 식품을 수송, 보관과정에서 안전하게 보존하는 것이다. 식품과 플라스틱 포장재간의 반응은 식품의 품질과 안전성 문제에 있어서 상당한 이슈가 되고 있는데 이는 주로 플라스틱에 남아있는 잔류용제, 단량체, 첨가물 등이 식품으로 전이되는 문제들이다. 플라스틱 포장재에 항산화제를 첨가하는 것은 필름의 열화는 물론 포장된 식품, 특히 유지가 많은 제품의 산화를 막을 수 있다. 현재 BHT와 같은 항산화제를 플라스틱 포장재에 적용하는 것이 상업화되어 제품의 유통기간을 연장시키는 방법으로 사용되고 있다. Alpha tocopherol은 가장 중요한 자유기 제거제의 하나로 생물 시스템에는 잘 알려져 있는데 이것을 포장재에 사용함으로써 생산자와 소비자 모두 매우 긍정적인 반응을 보이고 있다. Alpha tocopherol은 폴리올레핀계 레진에 적용되어 BHT를 대체하고 있다. 이 연구는 포장재와 제품간의 증발-흡착 메카니즘을 이용한 항산화제의 효과와 그 적용, 그리고 이러한 메카니즘을 예측할 수 있는 분석기법을 설명하였다.
플라스틱 포장재의 주요 기능은 식품을 수송, 보관과정에서 안전하게 보존하는 것이다. 식품과 플라스틱 포장재간의 반응은 식품의 품질과 안전성 문제에 있어서 상당한 이슈가 되고 있는데 이는 주로 플라스틱에 남아있는 잔류용제, 단량체, 첨가물 등이 식품으로 전이되는 문제들이다. 플라스틱 포장재에 항산화제를 첨가하는 것은 필름의 열화는 물론 포장된 식품, 특히 유지가 많은 제품의 산화를 막을 수 있다. 현재 BHT와 같은 항산화제를 플라스틱 포장재에 적용하는 것이 상업화되어 제품의 유통기간을 연장시키는 방법으로 사용되고 있다. Alpha tocopherol은 가장 중요한 자유기 제거제의 하나로 생물 시스템에는 잘 알려져 있는데 이것을 포장재에 사용함으로써 생산자와 소비자 모두 매우 긍정적인 반응을 보이고 있다. Alpha tocopherol은 폴리올레핀계 레진에 적용되어 BHT를 대체하고 있다. 이 연구는 포장재와 제품간의 증발-흡착 메카니즘을 이용한 항산화제의 효과와 그 적용, 그리고 이러한 메카니즘을 예측할 수 있는 분석기법을 설명하였다.
The main function of plastic materials in food packaging is to preserve a food for safe transportation and storage. The interactions between food and plastic materials in food packaging have become increasingly important for food quality and safety because monomer, low molecular weight components, o...
The main function of plastic materials in food packaging is to preserve a food for safe transportation and storage. The interactions between food and plastic materials in food packaging have become increasingly important for food quality and safety because monomer, low molecular weight components, or additives of plastic packaging materials can migrate into a food. The use of antioxidants in plastic materials can help protect the degradation of film itself and retard the oxidation of a packaged food containing lipid, through the migration of antioxidant from the packaging to a product via an evaporation / sorption mechanism. Nowadays, antioxidant (BHT) impregnated plastic materials are used for commercial food packaging application with the intention of achieving an extended shelf life of food in USA. Alpha tocopherol, as one of the most important free radical scavengers, has been well known in biological systems. Moreover, the potential use of alpha tocopherol as an additive for polymers used in the packaging industry may offer the most positive perception from both consumers and manufacturers. Alpha tocopherol has been used as an antioxidant for polyolefin resins fabricated to both bottles and film and has applications in the food packaging industry as a replacement for BHT. Today, alpha tocopherol offers an attractive choice for use as an antioxidant in polymers. This paper provides an overview of antioxidant effectiveness and applications for its use by the food packaging industry based on the evaporation-sorption mechanism of a packaging model product, where quality is associated with lipid oxidation. Important analytical techniques for predicting antioxidant interaction between the package system and product are discussed.
The main function of plastic materials in food packaging is to preserve a food for safe transportation and storage. The interactions between food and plastic materials in food packaging have become increasingly important for food quality and safety because monomer, low molecular weight components, or additives of plastic packaging materials can migrate into a food. The use of antioxidants in plastic materials can help protect the degradation of film itself and retard the oxidation of a packaged food containing lipid, through the migration of antioxidant from the packaging to a product via an evaporation / sorption mechanism. Nowadays, antioxidant (BHT) impregnated plastic materials are used for commercial food packaging application with the intention of achieving an extended shelf life of food in USA. Alpha tocopherol, as one of the most important free radical scavengers, has been well known in biological systems. Moreover, the potential use of alpha tocopherol as an additive for polymers used in the packaging industry may offer the most positive perception from both consumers and manufacturers. Alpha tocopherol has been used as an antioxidant for polyolefin resins fabricated to both bottles and film and has applications in the food packaging industry as a replacement for BHT. Today, alpha tocopherol offers an attractive choice for use as an antioxidant in polymers. This paper provides an overview of antioxidant effectiveness and applications for its use by the food packaging industry based on the evaporation-sorption mechanism of a packaging model product, where quality is associated with lipid oxidation. Important analytical techniques for predicting antioxidant interaction between the package system and product are discussed.
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성능/효과
In this case a diffusion coefficient can be measured under the test conditions and during a specified contact time. (3) Migration is controlled by the food product at the packaging surface, and the food system plays an important role in the transfer of migrants from the film structure to the contained product. Here, penetration of the film structure by a component of the contacting food system can increase the rate of diffusion of the migrant from the packaging film.
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