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- W2021954376 abstract "냉동 복분자의 품질에 대한 연구가 매우 부족하고 고품질 냉동 복분자를 생산하기 위한 냉해동 최적조건 연구가 시급히 필요한 실정이다. 본 연구에서는 국내에서 가장 많이 재배되는 R. occidentalis의 성숙과를 이용하여 냉해동 연구를 수행하였다. 복분자를 수확 직 후 -20, -45, <TEX>$-70^{circ}C$</TEX> 조건에서 냉동하고 2개월 동안 <TEX>$-20^{circ}C$</TEX>에서 저장한 후 <TEX>$4^{circ}C$</TEX> 혹은 상온에서 해동하여 복분자의 품질변화를 drip률, 강도, pH, 유리당 함량, 색도 및 anthocyanidin 함량을 중심으로 분석하였다. 분석결과, 냉동 온도에 따라 drip률, 유리당 함량 및 과의 강도가 유의적인 차이가 나타나는 것으로 측정되었다. 그러나 색도, pH, anthocyanidin의 함량 등은 냉동 조건에 따른 변화가 뚜렷하게 나타나지 않았다. 냉동 단면을 비교한 결과, 낮은 온도에서 냉동할수록 세포간 유출수가 현저하게 감소하는 것으로 관찰되었다. 미생물의 오염도는 호기성세균은 물론 효모와 곰팡이도 냉해동을 거치면서 유의적으로 감소하는 것을 확인 할 수 있었다. To date, the quality and safety of frozen bokbunja have not been clearly assessed. To produce high-quality frozen bokbunja, the optimal freeze-thaw conditions need to be explored. The most popular cultivar (Rubus occidentalis) in Korea was selected for this study. To determine the changes in the quality of frozen R. occidentalis berries, different freezing temperatures were used. The berries were frozen at -20, -45, and <TEX>$-70^{circ}C$</TEX> immediately after harvest. The drip ratio, hardness, pH, sugar content, color, and anthocyanidin content of the frozen and thawed samples were analyzed. The drip ratio, sugar content, and hardness of the berries correlated significantly with the freezing temperatures. The color and pH of the berries were not significantly affected by the freezing conditions. Frozen leaks between cells reduced significantly with decreasing temperatures. The freeze-thawing process significantly reduced the total aerobic bacteria and inhibited the growth of yeast/mold in the berries to about 2 log scales." @default.
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- W2021954376 date "2014-12-31" @default.
- W2021954376 modified "2023-10-15" @default.
- W2021954376 title "Freeze-thawing Conditions to Produce High Quality Bokbunja (Rubus occidentalis)" @default.
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- W2021954376 doi "https://doi.org/10.9721/kjfst.2014.46.6.710" @default.
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