Journal of the Korea Academia-Industrial cooperation Society (한국산학기술학회논문지)

The Korea Academia-Industrial cooperation Society (한국산학기술학회)
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Effects of high carbon dioxide and ethylene treatment on postharvest ripening regulation of red kiwifruit (Actinidia melanandra Franch) during cold storage

고농도 이산화탄소와 에틸렌처리가 레드키위의 수확 후 저온저장 중 숙성조절에 미치는 효과

  • 양용준 (상명대학교 식물식품공학과) ;
  • 임병선 (농촌진흥청 국립원예특작과학원 저장유통과)
  • Received : 2017.03.21
  • Accepted : 2017.06.09
  • Published : 2017.06.30
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Abstract

The effect of high carbon dioxide and ethylene treatment on postharvest ripening regulation of red kiwifruit (Actinidia melanandra) was investigated during cold storage. Physio-chemical properties such as weight loss, firmness, SSC, acidity, and market quality were analysed in red kiwifruit held at $10^{\circ}C$ compared to the fruit treated with carbon dioxide and ethylene during 75 days of storage. No significant weight loss was detected in red kiwifruit treated with carbon dioxide until 75 days of storage while the most rapid loss was found in fruit treated with ethylene. In ethylene-treated fruit, the firmness was dramatically reduced from 4.2kg on the first day to 1.2 kg after 27 days of storage at $10^{\circ}C$. However, the firmness of the carbon dioxide-treated fruit was 1.8kg after 54 days of storage. The highest level of SSC(%) was investigated within the 27 storage days at $10^{\circ}C$ for fresh red kiwifruit treated with exogenous ethylene, whereas the carbon dioxide-treated fruit exhibited a greatly increased SSC after 64 days. The carbon dioxide-treated red kiwifruit maintained statistically(p<.01) higher levels of acidity compared to the control and the exogenous ethylene-treated ones during 41 days of storage at $10^{\circ}C$. The SSC/Acid ratio of fruit treated with carbon dioxide was significantly lower (p<.01) maintained than the other two treatments (ethylene-treated and control fruit)throughout the 75-day experiment. Based on the quality characteristics of postharvest red kiwifruit, it could be concluded that the carbon dioxide treatment significantly delayed the ripening process and maintained the market quality of harvested red kiwifruit, which can be a potential application for commercial use in the kiwi industry.

본 연구는 레드키위 과실의 수확 후 숙성반응에 미치는 이산화탄소와 외부 에틸렌처리 효과를 구명하기 위하여 수행되었다. 저장온도 $10^{\circ}C$에 75일 저장 기간 중 레드키위의 숙성과정에 영향을 미치는 이산화탄소와 에틸렌 처리 효과를 구명하기 위하여 과실의 생체 중, 경도, 가용성 당 함량, 유기산 및 시장성 품질 등 물리 화학적 특성을 분석하였다. 레드키위의 생체중은 이산화탄소 처리로 저장 75일후 까지 무 처리와 에틸렌 처리에 비하여 가장 적게 감소된 반면 에틸렌 처리된 과실은 가장 빠르게 감소되었다. 에틸렌 처리과실의 경도는 $10^{\circ}C$ 저온저장 27일 후 4.2kg에서 1.2kg으로 감소된 반면, 이산화탄소 처리된 레드키위 과실은 저장 54일 후까지 1.8kg을 유지하였다. 가용성 당 함량(%)은 에틸렌처리로 $10^{\circ}C$ 저장 27일 후 가장 높은 값을 보인 반면 이산화탄소 처리된 과실에서는 64일 저장 후 가장 높게 나타났다. 레드 키위 과실의 유기산함량은 이산화탄소 처리에서 대조 구와 에틸렌 처리된 과실에 비하여 $10^{\circ}C$에 41일 저장 동안 통계적으로 유의성 있는 높은 값을 유지하였다. 당산 비는 75일 저장 기간 동안 대조 구와 에틸렌 처리된 과일에 비하여 이산화탄소 처리된 키위 과실이 가장 낮은 값을 보였다. 본 연구에서 이산화탄소 처리가 수확 후 레드 키위 과실의 숙성지연과 시장성 품질유지에 매우 효과적으로 나타나 향후 키위 산업에 상업적인 목적으로 이용 가능할 것으로 밝혀졌다.

Keywords

References

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