Effect of drying parameters on moisture content and papain enzyme activity of dried papaya

Due to the importance of minimizing thermal stresses over drying and maintenance of relevant compounds, selection of proper drying condition is necessary to maintain the quality of the processed fruit. The aim of this project is to study the effect of drying parameters i.e. temperature, air velocity...

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Main Authors: Zaki, Nurul Asyikin, Mohamad Darwi, Lizawati, Md. Salleh, Liza, Muhamad, Ida Idayu
Format: Conference or Workshop Item
Language:en
Published: 2005
Subjects:
Online Access:http://eprints.utm.my/5269/1/NurulAsyikinZaki2005_EffectOfDryingParametersOnMoistureContent.pdf
http://eprints.utm.my/5269/
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author Zaki, Nurul Asyikin
Mohamad Darwi, Lizawati
Md. Salleh, Liza
Muhamad, Ida Idayu
author_facet Zaki, Nurul Asyikin
Mohamad Darwi, Lizawati
Md. Salleh, Liza
Muhamad, Ida Idayu
author_sort Zaki, Nurul Asyikin
building UTM Library
collection Institutional Repository
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
continent Asia
country Malaysia
description Due to the importance of minimizing thermal stresses over drying and maintenance of relevant compounds, selection of proper drying condition is necessary to maintain the quality of the processed fruit. The aim of this project is to study the effect of drying parameters i.e. temperature, air velocity and geometry on moisture content and papain enzyme activity of dried papaya. Slices (0.5 x 1.5 x 1.5 cm) and cubes (1.0 cm3) of papaya were treated in tray drier at temperature (40, 50 and 60 °C) and air velocity (0.5, 1.0 and 1.5 m/s). Temperature was found to be significantly influencing the drying performance and quality retention for both slices and cubes. However, geometry was the most significant factor played as a controlling effect on moisture content, in which larger surface exposure helps temperature to take action strongly. Slices suffered higher water loss and enzyme degradation compared to cubes of papaya. Models obtained for moisture content and enzyme activity through response surface methodology were significant with R2 =0.93 and 0.80 respectively.
format Conference or Workshop Item
id my.utm.eprints-5269
institution Universiti Teknologi Malaysia
language en
publishDate 2005
record_format eprints
spelling my.utm.eprints-52692017-08-30T06:51:06Z http://eprints.utm.my/5269/ Effect of drying parameters on moisture content and papain enzyme activity of dried papaya Zaki, Nurul Asyikin Mohamad Darwi, Lizawati Md. Salleh, Liza Muhamad, Ida Idayu T Technology (General) Due to the importance of minimizing thermal stresses over drying and maintenance of relevant compounds, selection of proper drying condition is necessary to maintain the quality of the processed fruit. The aim of this project is to study the effect of drying parameters i.e. temperature, air velocity and geometry on moisture content and papain enzyme activity of dried papaya. Slices (0.5 x 1.5 x 1.5 cm) and cubes (1.0 cm3) of papaya were treated in tray drier at temperature (40, 50 and 60 °C) and air velocity (0.5, 1.0 and 1.5 m/s). Temperature was found to be significantly influencing the drying performance and quality retention for both slices and cubes. However, geometry was the most significant factor played as a controlling effect on moisture content, in which larger surface exposure helps temperature to take action strongly. Slices suffered higher water loss and enzyme degradation compared to cubes of papaya. Models obtained for moisture content and enzyme activity through response surface methodology were significant with R2 =0.93 and 0.80 respectively. 2005 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/5269/1/NurulAsyikinZaki2005_EffectOfDryingParametersOnMoistureContent.pdf Zaki, Nurul Asyikin and Mohamad Darwi, Lizawati and Md. Salleh, Liza and Muhamad, Ida Idayu (2005) Effect of drying parameters on moisture content and papain enzyme activity of dried papaya. In: 2nd International Conference on Chemical and Bioprocess Engineering in conjunction with 19th Symposium of Malaysian Chemical Engineers (SOMChE 2005), 8-10 December 2005, Kota Kinabalu, Sabah.
spellingShingle T Technology (General)
Zaki, Nurul Asyikin
Mohamad Darwi, Lizawati
Md. Salleh, Liza
Muhamad, Ida Idayu
Effect of drying parameters on moisture content and papain enzyme activity of dried papaya
title Effect of drying parameters on moisture content and papain enzyme activity of dried papaya
title_full Effect of drying parameters on moisture content and papain enzyme activity of dried papaya
title_fullStr Effect of drying parameters on moisture content and papain enzyme activity of dried papaya
title_full_unstemmed Effect of drying parameters on moisture content and papain enzyme activity of dried papaya
title_short Effect of drying parameters on moisture content and papain enzyme activity of dried papaya
title_sort effect of drying parameters on moisture content and papain enzyme activity of dried papaya
topic T Technology (General)
url http://eprints.utm.my/5269/1/NurulAsyikinZaki2005_EffectOfDryingParametersOnMoistureContent.pdf
http://eprints.utm.my/5269/
url_provider http://eprints.utm.my/