Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Minimal Processing Characteristics of Asian Pears in Relation to Storage Duration

저장기간에 따른 배 과실의 최소가공 특성

  • Published : 2003.09.01
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Abstract

This study was conducted to determine the minimal processing characteristics as affected by the storage duration of whole Asian pears(Pyrus pyrifolia Nakai cv. Niitaka). Before and after storage for 4 months under air at 0$^{\circ}C$, whole pears were sliced, placed in unsealed plastic bags, and kept for 4 days at 10$^{\circ}C$. Storage of whole pears increased the initial levels of electrolyte leakage, total phenols and browning index and decreased the initial content of vitamin C in pear slices. Slices from stored pears maintained higher respiration rate compared with slices from non-stored pears during keeping. The increase of electrolyte leakage, browning index and microbial number and the decrease of total phenol in slices during keeping were more fast in slices from stored pears than in those from non-stored pears. These results suggest that the minimal processing characteristics of ‘Niitaka’ pears are depending upon storage duration.

‘신고’ 배의 저장기간에 따른 최소가공 특성을 확인하기 위하여, 원형 과실의 저장 전과 $0^{\circ}C$에서 4개월 저장 후에 슬라이스를 제조하여 1$0^{\circ}C$에서 보관하면서 호흡량, 전해질 유출량, 총페놀 함량, 갈변도, 비타민C 함량 및 총균수를 각각 조사하였다 배 슬라이스의 제조 직후 무저장 과실보다 저장 과실로 만든 슬라이스에서 전해질 유출량, 총페놀 함량 및 갈변도가 유의적으로 높았으며 비타민C 함량은 낮았다. 배 슬라이스의 보관 중에는 무저장 과실에 비해 저장과실로 제조한 슬라이스에서 호흡량이 높았으며 전해질 유출량, 갈변도 및 총균수가 보다 빠르게 증가하였고 총페놀함량은 보다 빠르게 감소하였다. 이러한 결과로 볼 때 원형배의 저장기간이 최소가공성에 영향을 미치는 것으로 볼 수 있으며 최소가공품의 제조 및 품질관리 인자로 원형 과실의 저장기간도 고려되어야 할 것으로 판단된다.

Keywords

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