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Studies on cold injury of fukuhara orange citrus sinensis fruit 4. prevention of dry juice sac development in fruit through control storage following freezing/


Bulletin of the Fruit Tree Research Station Series D (Kuchinotsu) (6): 77-84
Studies on cold injury of fukuhara orange citrus sinensis fruit 4. prevention of dry juice sac development in fruit through control storage following freezing/
To determine a practical way to store frosted Fukuhara orange fruit for dry juice sac prevention, 2 experiments were carried out, using fruit frozen naturally in an orchard and one frozen artificially. The occurrence of dry juice sacs was suppressed when the frosted fruit was harvested and stored at low temperature (.apprx. 3.degree.-5.degree. C) immediately after frost damage. When frosted and harvested fruit were stored at room temperature (.apprx. 10.degree.-15.degree. C), dryjuice sacs occurred as much as in fruit in the orchard. Similarly, fruit harvested 10 days after freezing and stored at low temperatures incurred dry juice sacs severely. Fruit weight decreased at an uniform rate during storage, and there was no difference in weight loss percentage between frozen and unfrozen fruit, or with lower temperature and room-temperature storage. Therefore, there was little correlation between weight loss percentage and the occurrence of dry juice sacs. This suggests estimation of dry juice sac development by the weight loss percentage to be inappropriate. Citric acid content in juice decreased markedly with the development of dry juice sacs. It was high in fruit immediately harvested after freezing and stored for a longer period. However, there was no relationship between brix of juice and the development of dry juice sacs. Fruit stored at lower temperatures immediately after frost damage developed dry juice sacs to a slight extent. However, it was unsavory because of unpleasant smell, and acid and bitter taste.


Accession: 006505744



Related references

Studies on cold injury of citrus sinensis cultivar fukuhara orange fruit 1. relationship between flesh freezing and the subsequent development of dry juice sacs. Bulletin of the Fruit Tree Research Station Series D (Kuchinotsu) (5): 59-66, 1983

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