Physico-chemical properties of spray-dried red pitaya (Hylocereus polyrhizus) peel powder during storage

Jamilah B., . and Ee S. C., . and Hashim D. M., . and Adzahan N., . and Muhammad K., . Physico-chemical properties of spray-dried red pitaya (Hylocereus polyrhizus) peel powder during storage. pp. 155-160. ISSN 22317546

The physico-chemical properties of spray-dried pitaya peel powders kept at accelerated (45 2C) and room temperature (28 2C) for 14 weeks and 6 months respectively were evaluated. Changes in physico-chemical properties of the peel powder were used as indicators of stability while changes of the betacyanin pigment retention was used to calculate the shelf-life of the powder. Storage temperatures significantly (p 0.05) affected all the studied parameters and Hunter a value had the most significant change. The pigment retention of peel powder was approximately 87 at 45C and 89 at room temperature storage. Degradation of betacyanin pigment in the powder followed the first order reaction kinetics with the half-life (t1/2) of approximately 76 weeks at 45C and 38 months at 28C. The spray-dried pitaya peel powder had a solubility of 87 to 92 and low in powder hygroscopicity. The final Aw of the powder did not exceed 0.6 for both storage temperatures.

Full text available from: Official URL: http://www.ifrj.upm.edu.my/21%20(01)%202014/22%20I...

Abstract

The physico-chemical properties of spray-dried pitaya peel powders kept at accelerated (45 2C) and room temperature (28 2C) for 14 weeks and 6 months respectively were evaluated. Changes in physico-chemical properties of the peel powder were used as indicators of stability while changes of the betacyanin pigment retention was used to calculate the shelf-life of the powder. Storage temperatures significantly (p 0.05) affected all the studied parameters and Hunter a value had the most significant change. The pigment retention of peel powder was approximately 87 at 45C and 89 at room temperature storage. Degradation of betacyanin pigment in the powder followed the first order reaction kinetics with the half-life (t1/2) of approximately 76 weeks at 45C and 38 months at 28C. The spray-dried pitaya peel powder had a solubility of 87 to 92 and low in powder hygroscopicity. The final Aw of the powder did not exceed 0.6 for both storage temperatures.

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Item Type:	Article
AGROVOC Term:	Physicochemical properties
AGROVOC Term:	Hylocereus
AGROVOC Term:	Storage
AGROVOC Term:	Spray drying
AGROVOC Term:	Stability
AGROVOC Term:	Pigments
AGROVOC Term:	Shelf life
AGROVOC Term:	Powders
AGROVOC Term:	Solubility
AGROVOC Term:	Hygroscopicity
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:26
URI:	http://webagris.upm.edu.my/id/eprint/21264

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