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Spray drying as the alternative method for production of tropical fruit powder

Bachtiar, N.A. and Sarmidi, Mohamad Roji (1997) Spray drying as the alternative method for production of tropical fruit powder. In: Regional Symposium on Chemical Engineering 1997 in conjunction with 13th Symposium of Malaysian Chemical Engineers, 13-15 October 1997, Hyatt Regency, Johor, Malaysia.

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Abstract

Mango puree was encapsulated with gum arabic using a laboratory scale spray dryer at inlet and outlet air temperatures ranging from 160 degree C to 220 degree C and 79 degree C to 110 degree C respectively. A preliminary drying run was done at 160 degree C inlet and 106 degree C exit air temperatures with a flow rate of 900 ml/hr using the laboratory scale spray dryer. The temperature and flow rate were adjusted until a high product yield with low moisture content is achieved. Optimum operating condition for spray drying of mango puree using a laboratory scale spray dryer were at a flow rate of 900ml/hr, inlet temperature of 200 degree C and outlet temperature of 134 degree C. The powders were analysed for starch, vitamin C and moisture content. These data is used determine the optimum operating condition for a pilot-scale spray dryer. The optimum operating condition of a laboratory scale spray dryer was then applied to the pilot scale spray dryer. Similar analysis on the powder were conducted. This optimum operating condition was applied to a pilot scale spray dryer. From the trial runs, it was found the optimum operating condition for pilot scale spray dryer was at a flow rate of 1200ml/hr, inlet temperature of 160 degree C and outlet temperature of 96 degree C. The powder dried at this operating condition was found possible for commercial production of tropical fruit powder.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:Mango puree, moisture content, spray drying, starch, tropical fruit powder, vitamin C
Subjects:T Technology > T Technology (General)
Divisions:Chemical and Natural Resources Engineering (Formerly known)
ID Code:4652
Deposited By: Norhani Jusoh
Deposited On:13 Dec 2007 10:23
Last Modified:01 Jun 2010 03:19

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