Effect of temperature on the rheological behaviour of 'Josapine' pineapple (Ananas comosus L.) pulp

S. Rosnah, I. Coskan, Wan Ramli Wan Daud, Mohd Sobri Takriff, Osman Hassan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The temperature effect on the rheological behaviour of 30% 'Josapine' pineapple pulp in juice has been determined over a wide range of temperature (5 to 65°C) using a rotational rheometer. The speed of the rotating cylinder varied from 1 to 300 s -1. These pulp containing juices behaved as Non Newtonian with yield stress. The Bingham equation was observed to describe best the relationship between the shear stress and shear rate. The average value of yield stress was 0.566 Pa and plastic viscosity was in the range 0.0312 to 0.0510 Pas. The plastic viscosity decreased with an increase in temperature. The effect of temperature on their plastic viscosity can be described by an Arrhenius-type equation. The values of the K O was 0.0038 Pas and activation energy (Ea)was 5871.10 J/mol.

Original languageEnglish
Title of host publicationActa Horticulturae
Pages449-452
Number of pages4
Volume902
Publication statusPublished - 31 Jul 2011

Publication series

NameActa Horticulturae
Volume902
ISSN (Print)05677572

Fingerprint

Ananas comosus
pineapples
pulp
viscosity
plastics
juices
temperature
activation energy
shear stress
shears

Keywords

  • Activation energy
  • Arrhenius
  • Pineapple
  • Plastic viscosity

ASJC Scopus subject areas

  • Horticulture

Cite this

Rosnah, S., Coskan, I., Wan Daud, W. R., Takriff, M. S., & Hassan, O. (2011). Effect of temperature on the rheological behaviour of 'Josapine' pineapple (Ananas comosus L.) pulp. In Acta Horticulturae (Vol. 902, pp. 449-452). (Acta Horticulturae; Vol. 902).

Effect of temperature on the rheological behaviour of 'Josapine' pineapple (Ananas comosus L.) pulp. / Rosnah, S.; Coskan, I.; Wan Daud, Wan Ramli; Takriff, Mohd Sobri; Hassan, Osman.

Acta Horticulturae. Vol. 902 2011. p. 449-452 (Acta Horticulturae; Vol. 902).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Rosnah, S, Coskan, I, Wan Daud, WR, Takriff, MS & Hassan, O 2011, Effect of temperature on the rheological behaviour of 'Josapine' pineapple (Ananas comosus L.) pulp. in Acta Horticulturae. vol. 902, Acta Horticulturae, vol. 902, pp. 449-452.
Rosnah S, Coskan I, Wan Daud WR, Takriff MS, Hassan O. Effect of temperature on the rheological behaviour of 'Josapine' pineapple (Ananas comosus L.) pulp. In Acta Horticulturae. Vol. 902. 2011. p. 449-452. (Acta Horticulturae).
Rosnah, S. ; Coskan, I. ; Wan Daud, Wan Ramli ; Takriff, Mohd Sobri ; Hassan, Osman. / Effect of temperature on the rheological behaviour of 'Josapine' pineapple (Ananas comosus L.) pulp. Acta Horticulturae. Vol. 902 2011. pp. 449-452 (Acta Horticulturae).
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