Horticultural Science & Technology (원예과학기술지)

Korean Society of Horticultural Science (한국원예학회)
권호 표지

Optimum CA Condition for Four Apple Cultivars Grown in Korea

한국에서 재배된 사과 4품종의 적정 CA 저장 농도 설정

Hong, Yoon-Pyo;Lee, Sung-Koo
홍윤표;이승구

  • Published : 20030000
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Abstract

‘Hongro’, ‘Hwahong’, ‘Tsugaru’, and ‘Fuji’ apples were placed in CA storage at 0$\circ$C immediately after harvest and those apples were additionally placed in regular air (RA) storage. The atmospheric compositions were set at the combinations of O_2 1%+CO_2 1%, O_2 1%+CO_2 3%, O_2 3%+CO_2 3%. The storage condition of O_2 1%+CO_2 1% resulted in longer storability with harder flesh firmness in ‘Hongro’ and ‘Hwahong’ apples after three months and ‘Fuji’ apples after six months than the RA storage or the condition of O_2 3%+CO_2 3%. However, ‘Tsugaru’ apples did not show significant difference in storability by different CA conditions. Organic acid content significantly decreased according to storage conditions in ‘Tsugaru’, ‘Hongro’, and ‘Fuji’ except ‘Hwahong’ apples. Hunter value ‘a’ of skin color considerably increased in the conditions of O_2 3% combinations and RA storage in all the surveyed cultivars. The storage conditions of O_2 1% combinations showed no internal browning after three months but brought out internal browning after six months in all the cultivars. Decay occurrence in those apples followed the similar tendency of internal browning. Cork spots in ‘Fuji’ apples were not observed in the storage conditions of O_2 1% combinations. From the results, it could be concluded that the suitable condition for CA storage in ‘Hongro’, ‘Hwahong’, ‘Tsugaru’, and ‘Fuji’ was the combination of O_2 1%+CO_2 1%.

‘홍로’, ‘화홍’, ‘쓰가루’, 그리고 ‘후지’ 사과를 수확 직후 0℃의 CA 저장고에 저장하였으며 대기상태의 저장이 추가로 조사되었다. 내부 공기의 조성은 O21%+CO21%, O21%+CO23%, O23%+CO2 3%의 구성으로 조절되었다. O2 1%+CO2 1%의 저장조건은 과육 경도로 비교하였을 때 대기상태의 저장보다 ‘홍로’와 ‘화홍’ 사과의 저장력을 3개월 그리고 ‘후지’ 사과의 저장력을 6개월 연장시켰다. 반면 ‘쓰가루’ 사과는 저장조건에 따른 저장력의 변화를 보여주지 않았다. ‘화홍’ 사과를 제외한 ‘쓰가루’, ‘홍로’ 그리고 ‘후지’ 사과는 저장조건에 따라 유기산이 현저히 감소하였으며 모든 조사 품종은 O2 농도가 3%인 CA 저장과 대기저장에서 과피의 Hunter ‘a’ 값이 상당히 증가하였다. O2 농도가 1%인 CA 저장조건은 3개월 후 내부갈변을 나타내지 않았으나 모든 조사품종에서 6개월 경과 후엔 발생하였다. 조사과실의 부패과 발생은 내부갈변과 비슷한 경향을 따랐다. ‘후지’ 사과에서의 코르크스팟은 O2 농도가 1%인 CA 저장조건에서는 발견되지 않았다. 상기 시험 결과, ‘홍로’, ‘화홍’, ‘쓰가루’ 그리고 ‘후지’ 사과의 CA 저장에 적합한 조건은 O2 농도 1% + CO2 농도 1%라고 결론지을 수 있었다.

Keywords

References

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