Effect of drying temperature of small scale spray dryer on physical properties of coffee powder

Dwi Ayuni, . and Karyadi Joko Nugroho Wahyu, . and Tsania Ayu Rohani, . and Devi Yuni Susanti, . Effect of drying temperature of small scale spray dryer on physical properties of coffee powder. pp. 1315-1327. ISSN 2231-8526

Nowadays coffee has become one of the most favorable commodities for beverages flavoring as well as for cosmetic industries. In Indonesia coffee becomes more popular especially among youngsters. In this study the spray drying process was evaluated giving the potential of how simple spray dryer can help local farmers of Indonesia to produce their coffee powders. One small scale of spray dryer was constructed with the total dimensions of 2.85 x 0.64 for length x width with a height of 2.32 m. The spray dryer was equipped with a digital thermo regulator the pneumatic nozzle system and 4 finned heaters with the power of 2700 watt for each. The spray drying constructed was revealed to be able to produce coffee powders with fine quality. The inlet temperature of the drying chamber as well as the initial Brix content of feed solution were proven to affect the physical properties of powder produced such as moisture content product yield and solubility. The final moisture content of powders was ranged from 3 “ 7 db with the high product yield of the drying process which could reach up to 70.

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Abstract

Nowadays coffee has become one of the most favorable commodities for beverages flavoring as well as for cosmetic industries. In Indonesia coffee becomes more popular especially among youngsters. In this study the spray drying process was evaluated giving the potential of how simple spray dryer can help local farmers of Indonesia to produce their coffee powders. One small scale of spray dryer was constructed with the total dimensions of 2.85 x 0.64 for length x width with a height of 2.32 m. The spray dryer was equipped with a digital thermo regulator the pneumatic nozzle system and 4 finned heaters with the power of 2700 watt for each. The spray drying constructed was revealed to be able to produce coffee powders with fine quality. The inlet temperature of the drying chamber as well as the initial Brix content of feed solution were proven to affect the physical properties of powder produced such as moisture content product yield and solubility. The final moisture content of powders was ranged from 3 “ 7 db with the high product yield of the drying process which could reach up to 70.

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Item Type:	Article
AGROVOC Term:	Coffee
AGROVOC Term:	Drying
AGROVOC Term:	Spray drying
AGROVOC Term:	Dryers
AGROVOC Term:	Temperature
AGROVOC Term:	Physical properties
AGROVOC Term:	Moisture content
AGROVOC Term:	Solubility
AGROVOC Term:	Product quality
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/9357

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