Statistical Optimization of foam mat drying of Sapodilla pulp using Glycerol Monostearate

Kannan K, Sivakumar V1,*, Sangamithra A

Research Articles | Published:

Print ISSN : 0970-4078.
Online ISSN : 2229-4473.
Pub Email:
Doi: 10.5958/2229-4473.2018.00055.1
First Page: 39
Last Page: 52
Views: 168

Keywords: Sapodilla-Foam-Drying-Optimization-RSM-Box Behnken.


In this study, an attempt has been made to convert sapodilla pulp into powder using foam mat drying technique. Box-Benkhen Design was used to optimize the process variables to obtain maximum FE, minimum FDV and FD. The GMS concentration of 5.5%, CMC concentration of 0.63% and WT of 7 min were found to be efficient for foaming of sapodilla pulp. Then foamed sapodilla pulp produced at optimum conditions were subjected to convective drying at temperatures of 60, 70 and 80°C. The drying characteristics, moisture content and drying rate were assessed for different experiments. The moisture content of the dried sapodilla powder found in the range of 3.19 to 4.13% (d.b). The physiochemical properties of dried sapodilla powder such as density, Hausner ratio, Carr index, hygroscopicity, wettability, dispersibility, ascorbic acid content, WSI and WAI were studied. Based on the flowability, solubility, dispersibility characteristics and ascorbic acid retention, drying temperature of 70°C was found optimum for producing sapodilla powder from foamed pulp.

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Author Information

Kannan K Sivakumar V1* Sangamithra A
Department of Food Technology, Kongu Engineering College, Erode, TamilNadu, India

1Department of Chemical Engineering, Anna University, Chennai, TamilNadu, India

*Corresponding author: Department of Chemical Engineering, Anna University, Chennai, Tamil Nadu, India. E-mail: