Quality Changes and Nonenzymic Browning Intermediates in Grapefruit Juice During Storage

H.S. Lee, Steven Nagy

Journal of Food Science · 1988 · 122 citations · 18 references

Concepts

Abstract

ABSTRACT Effects of storage temperature and time on the quality of commercially canned grapefruit juice were investigated. The most noteworthy and reproducible trend observed by HPLC was a significant increase in concentration of 5‐hydroxymethylfurfural and furfural with increased storage temperature. During storage over 50% of sucrose was hydrolyzed after 6 wk at 30°C, and the reducing sugars increased in accordance with hydrolysis of sucrose. In the juice stored at 50°C, more than 98% of the ascorbic acid, and about 9% of total sugars were lost. Lightness value of juice decreased continuously during storage.

References

18