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KMID : 0380619930250030243
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Korean Journal of Food Science and Technology
1993 Volume.25 No. 3 p.243 ~ p.246
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Shelf - life Extension of Yukwa(oil Puffed rice cake) by O2 Preventive Packing
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Abstract
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For extending the shelf-life of Yukwa (oil puffed rice cake) which is one of the most favorable Korean traditional rice snack, the Yukwa was packed in O₂ preventive container and substituted the air with N₂ gas or packed with O₂ absorbent (ageless sachet). The quality of Yukwa stored at 35℃ was evaluated by POV, AV and TBA including sensory evaluation. The POV of oil in Yukwa of N₂ substitute pack and absorbent sachet included were 5.3 and 11.9 meq/kg, respectively, while no packing (control) was 195.5 meq/kg after 90 days storage at 35 ℃ . AV and TBA were also same trend but the gap with the control was not so big. The Yukwa, Nz gas substituted, was better in quality than absorbent treatment in sensory evaluation and no difference was detected in quality of 90 days storage Yukwa at 35 ℃ with 15 days. The main reason for lower sensory score of absorbent treatment was that the O₂ absorbent also absorbed the flavor component of Yukwa.
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