Quality changes in Rubus coreanus Miquel during Frozen Storage

냉동 저장 중 복분자딸기(Rubus coreanus Miq.)의 품질 변화

  • Published : 2009.10.30

Abstract

Ripened Rubus coreanus Miquel harvested at Gochang was stored for 8 months at $-20{\pm}2^{\circ}C$, and quality changes were investigated at intervals of 2-3 months. Soluble solid concentration increased slightly, but acidity fell during frozen storage. The lightness (L value) and red color index (a value) of ripened R. coreanus Miquel decreased during storage. The vitamin C and ellagic acid contents were 30.79 mg/100 g and $155.12\;{\mu}g/100\;mg$ mg before storage, respectively, but fell to 17.03 mg/100g and $140.11\;{\mu}g/100\;mg$ after 8 months of storage. However, the total anthocyanin content was 39.45 mg/100 g before storage, and this remained unchanged from 2 to 8 months of storage.

완숙 복분자딸기(Rubus coreanus Miq.) 과실부의 냉동저장 중 품질 특성의 변화를 조사하였다. 저장 초기에 비하여 과실을 저장 할수록 산도는 감소하였고, 가용성고형분은 증가하는 것으로 나타났다. 색상의 경우 저장 초기에는 L, a값이 35.63, 6.74 value로 전체적으로 밝은 붉은 빛을 가졌지만, 냉동 저장되어지면서 28.56, 4.13 value로 유의적으로 감소되어짐에 따라 점차 어두워지고 붉은 빛은 감소하였다. 비타민 C(30.79 mg/100 g)와 엘라그산($155.12\;{\mu}g/100\;mg$) 함량은 저장 초기에 가장 높았으며, 저장 시간이 지날수록 이들의 함량은 감소되었다.

Keywords

References

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