Color and density of apple cubes dried in air and modified atmosphere

Matthew B. O'Neill, M. Shafiur Rahman, Conrad O. Perera, Bronwen Smith, Laurence D. Melton

Research output: Contribution to journalArticle

34 Citations (Scopus)

Abstract

The color, density and porosity of apple cubes dried in air and modified atmospheres were measured to identify the potential of modified atmosphere drying for foods. The modified atmospheres were achieved by flushing nitrogen gas through a specially designed laboratory dryer. The drying temperature was varied from 17 to 75°C. The results indicated that dried apple cubes with no browning could be produced under low oxygen atmospheres. Thus, chemical additives, such as sulfur dioxide can be completely eliminated from the process. The temperature and oxygen levels in the drying atmosphere were important factors in achieving the best quality in terms of color. Apple cubes dried in low oxygen atmospheres gave more porous products than those dried in air. Moreover, apple cubes dried in a nitrogen atmosphere had the greater number of open pore structures connected to the the exterior surface of the cubes.

Original languageEnglish
Pages (from-to)197-205
Number of pages9
JournalInternational Journal of Food Properties
Volume1
Issue number3
Publication statusPublished - 1998

Fingerprint

air drying
Malus
Atmosphere
Color
apples
Air
color
oxygen
drying
Oxygen
drying temperature
nitrogen
dryers
sulfur dioxide
Nitrogen
porosity
Sulfur Dioxide
gases
Temperature
Porosity

ASJC Scopus subject areas

  • Food Science

Cite this

O'Neill, M. B., Rahman, M. S., Perera, C. O., Smith, B., & Melton, L. D. (1998). Color and density of apple cubes dried in air and modified atmosphere. International Journal of Food Properties, 1(3), 197-205.

Color and density of apple cubes dried in air and modified atmosphere. / O'Neill, Matthew B.; Rahman, M. Shafiur; Perera, Conrad O.; Smith, Bronwen; Melton, Laurence D.

In: International Journal of Food Properties, Vol. 1, No. 3, 1998, p. 197-205.

Research output: Contribution to journalArticle

O'Neill, MB, Rahman, MS, Perera, CO, Smith, B & Melton, LD 1998, 'Color and density of apple cubes dried in air and modified atmosphere', International Journal of Food Properties, vol. 1, no. 3, pp. 197-205.
O'Neill, Matthew B. ; Rahman, M. Shafiur ; Perera, Conrad O. ; Smith, Bronwen ; Melton, Laurence D. / Color and density of apple cubes dried in air and modified atmosphere. In: International Journal of Food Properties. 1998 ; Vol. 1, No. 3. pp. 197-205.
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