능동 식품 포장을 위한 Poly(vinyl alcohol)/Tannin 블렌드필름의 제조 및 특성분석 = Preparation and Characterization of Poly(vinyl alcohol)/Tannin Blend Filmfor Active Food Packaging

국문 초록 (Abstract)

식품산업의 당면 과제는 식품의 운송, 보관 및 소비의 전 과정에서 기존 식품의 품질을 유지하거나 향상시키는것이다. 따라서, 식품 포장업계에서는 스마트 패키징 기술에 대한 연구가 활발하게 이루어지고 있다. 한 예로 최근바이오고분자의 접근성, 생체적합성, 생분해성, 무독성 등의 특성을 활용하여 바이오소재 기반 식품 패키징 기술이시도되고 있다. 본 연구에서는 환경친화적이며 필름형성능이 우수한 poly(vinyl alcohol) (PVA)에 항산화 및 항균 활성을 가지는 천연 폴리페놀 화합물인 tannic acid (TA)를 혼합하여, 식품의 유통기한을 연장할 수 있는 능동형 식품포장 필름을 개발하였다. 블렌드 필름은 간단한 용액 성형방식으로 제조되었으며, 식품의 부패방지에 도움이 될 수있는 항산화 및 항균 특성을 분석한 다음, 실제 변색이 쉽게 일어나는 바나나를 포장하여 식품 부패방지 특성을 갈변 현상과 중량 감소를 통해 평가하여 식품 보관능력이 향상되었음을 확인하였다.

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