Modeling of physicochemical and functional parameters of pumpkin (Cucurbita pepo) powder using response surface methodology

Deshmukh Y., . and Sharma H. K., . and Kumar N., . Modeling of physicochemical and functional parameters of pumpkin (Cucurbita pepo) powder using response surface methodology. pp. 2071-2081. ISSN 2231-7546

Pumpkin (Curcurbita pepo) is a rich source of carotene vitamins minerals pectin and dietary fiber however it is perishable in nature. Spray drying was used for the preparation of pumpkin powder to enhance the shelf life and process parameters were modelled. Response surface methodology was used to investigate the effect of maltodextrin concentrations (10-30) inlet air temperature (140-210C) and feed flow rate (8-12 rpm) at constant 2400 rpm blower speed during spray drying on different physico-chemical functional and anti oxidants properties to obtain optimum quality of spray dried pumpkin juice powder. The optimized conditions for dehydration were found as maltodextrin concentration of 15 inlet air temperature of 177C and feed flow rate of 10 rpm. Experimental values of the responses under the optimized conditions were as water activity: 0.14 L value: 96.54 a value: 4.91 b value: 21.71 water solubility index: 82.58 water absorption index: 10.09 g/g hygroscopicity: 13.25 g/100g bulk density: 0.29 g/ml process yield: 64.53 beta carotene: 3.06 mg/100g moisture content: 3.25 and DPPH (2 2diphenyl 1- pecrylhydrazyl) free radical scavenging activity: 40.95.

Full text available from: Official URL: http://www.ifrj.upm.edu.my/24%20(05)%202017/(32).p...

Abstract

Pumpkin (Curcurbita pepo) is a rich source of carotene vitamins minerals pectin and dietary fiber however it is perishable in nature. Spray drying was used for the preparation of pumpkin powder to enhance the shelf life and process parameters were modelled. Response surface methodology was used to investigate the effect of maltodextrin concentrations (10-30) inlet air temperature (140-210C) and feed flow rate (8-12 rpm) at constant 2400 rpm blower speed during spray drying on different physico-chemical functional and anti oxidants properties to obtain optimum quality of spray dried pumpkin juice powder. The optimized conditions for dehydration were found as maltodextrin concentration of 15 inlet air temperature of 177C and feed flow rate of 10 rpm. Experimental values of the responses under the optimized conditions were as water activity: 0.14 L value: 96.54 a value: 4.91 b value: 21.71 water solubility index: 82.58 water absorption index: 10.09 g/g hygroscopicity: 13.25 g/100g bulk density: 0.29 g/ml process yield: 64.53 beta carotene: 3.06 mg/100g moisture content: 3.25 and DPPH (2 2diphenyl 1- pecrylhydrazyl) free radical scavenging activity: 40.95.

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Item Type:	Article
AGROVOC Term:	Cucurbita
AGROVOC Term:	Cucurbita pepo
AGROVOC Term:	Pumpkins
AGROVOC Term:	Carotenes
AGROVOC Term:	Dehydration
AGROVOC Term:	Keeping quality
AGROVOC Term:	Extraction
AGROVOC Term:	Spray drying
AGROVOC Term:	Methodology
AGROVOC Term:	Analysis of variance
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 06:28
URI:	http://webagris.upm.edu.my/id/eprint/23846

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