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Physicochemical properties of Josapine pineapple (Ananas comosus)


Mohd Rosdan, Faridatul Ain and Yusof, Yus Aniza and Aziz, Mohammad Gulzarul and Chin, Nyuk Ling and Mohd Amin, Nor Amaiza and Mohd Ghazali, Hasanah and Chong, Pik Han (2012) Physicochemical properties of Josapine pineapple (Ananas comosus). In: International Conference on Agricultural and Food Engineering for Life (Cafei2012), 26-28 Nov. 2012, Palm Garden Hotel, Putrajaya. (pp. 62-71).


Pineapple pulp and its freeze-dried powder prepared from Josapine pineapple were assessed for physicochemical properties such as colour values (L*, a*, and b*), titratable acidity (TA), total soluble solids (TSS), proximate composition (moisture, protein, ash, fiber and fat content), water activity (Aw), pH, and also the sensory evaluation. Data obtained were analysed using ANOVA where the values of p<0.05 were define as significant. Moisture content, TSS and colour measurement showed a significant different p(<0.05) where; moisture content (pulp) in the range of 87.90 – 91.17 %, moisture content (powder); 1.98 – 2.92 %; TSS (pulp): 18.74 – 22.81 °Brix, TSS (powder): 31.76 – 35.30 °Brix; colour measurement (pulp): L* (51.11-75.27), a* (3.35-3.93), colour measurement (powder): L* (37.59 – 49.63), a* (2.91 – 6.47). All the range of values is throughout all the treatments which can be used to discriminate between pulp and freeze-dried powder, whilst TA, TSS, pH and sensory evaluation results can be used to discriminate between freeze-dried powders prepared using maltodextrin and the one with addition of sugar.

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Additional Metadata

Item Type: Conference or Workshop Item (Paper)
Divisions: Faculty of Engineering
Faculty of Food Science and Technology
Publisher: Faculty of Engineering, Universiti Putra Malaysia
Keywords: Josapine pineapple; Physicochemical analysis; Proximate composition; Freeze-dried pineapple powder
Depositing User: Nabilah Mustapa
Date Deposited: 02 Mar 2017 06:11
Last Modified: 02 Mar 2017 06:11
URI: http://psasir.upm.edu.my/id/eprint/50651
Statistic Details: View Download Statistic

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