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※ 학술발표대회집, 워크숍 자료집 중 4페이지 이내 논문은 '요약'만 제공되는 경우가 있으니, 구매 전에 간행물명, 페이지 수 확인 부탁 드립니다.
4,000원
원문정보
초록
영어
Powdered infant formula is susceptible to oxidation in the presence of oxygen. Even though the product is usually packaged in nitrogen atmosphere, the oxygen ingress through the package layer may occur in case of flexible pouches and affects the oxidation of the product. O2 barrier of the package is thus important variable to protect the product from oxidative deterioration. O2 barrier property was investigated for aluminum-laminated small pillow packs of 3.5×17.5 cm. Storage temperature and combination of primary and secondary packages were evaluated as variables affecting the barrier for conditions of empty pouch flushed with nitrogen. Apparent oxygen transmission rate of the primary package exposed to air was 2.32×10-3 mL (STP) atm-1 d-1 at 30°C and its temperature dependence could be explained by activation energy of 28.5 kJ mol-1 in Arrhenius relationship. The additional secondary package of nylon/PE film containing 20 primary packages was ineffective in modulating package O2 transmission and was only marginally helpful when combined with oxygen scavenger. The same was true in suppressing the product oxidation when the primary package was filled with 14 g of the formula.
목차
Abstract Introduction Materials and Methods 1. Measurement of O2 transmission for small pillow packs 2. Application of secondary packaging condition for protection against oxygen and oxidation Results and Discussion 1. OTR of primary package 2. Effect of secondary packaging on further protectionagainst oxygen and oxidation Conclusion Acknowledgements References