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Effects of storage time and temperature on polyphenolic content and qualitative characteristics of freeze-dried and spray-dried bayberry powder.
- Source :
-
LWT - Food Science & Technology . May2017, Vol. 78, p235-240. 6p. - Publication Year :
- 2017
-
Abstract
- To extend shelf-life and develop new bayberry products, the effects of storage time and temperature on polyphenolic content and qualitative characteristics of freeze-dried and spray-dried bayberry power were studied. Results showed that the retention of total polyphenols, gallic acid, protocatechuic acid, cyanidin-3-o-glucoside and anthocyanins in the freeze-dried bayberry powder was in most cases higher than in the spray-dried powder when they were stored for the same period. The content of these components in both the freeze-dried and spray-dried bayberry powder decreased gradually with the longer storage time. No significant difference was detected for the retention of these compounds whether they were stored at 4 °C or 25 °C. The browning index of both the freeze-dried and spray-dried powder significantly increased during a 50-day storage period. The ΔE value of the bayberry powder stored at 25 °C was distinctly higher than that of the other treated samples; a value of the spray-dried powder was slightly higher than that of the other samples. All presented results indicate that freeze-drying and 4 °C storage is an efficient and convenient method to maintain the bioactive polyphenolic components and high-qualitative characteristics of bayberry fruits. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POLYPHENOLS
*FREEZE-drying
*SPRAY drying
*FOOD storage
*SHELF-life dating of food
Subjects
Details
- Language :
- English
- ISSN :
- 00236438
- Volume :
- 78
- Database :
- Academic Search Index
- Journal :
- LWT - Food Science & Technology
- Publication Type :
- Academic Journal
- Accession number :
- 120954656
- Full Text :
- https://doi.org/10.1016/j.lwt.2016.12.027