Journal of Microwave Power and Electromagnetic Energy (JMPEE)

 

TITLE

Effects of Susceptor, Coating and Conventional Browning Applications on Color and Crust Formation During Microwave Baking  [PDF]

AUTHORS

S. Sahin, G. Sumnu, and D. Zincirkiran

2002

37

4

223-236

YEAR

VOLUME

ISSUE

PAGES

 

Abstract

The effects of different browning treatments on the crust color and crust hardness of microwave baked breads were investigated. Microwave oven was operated at 20%, 30% and 40% powers for 3.5-5.5 minutes. As a control, breads were baked in a conventional oven at 200°C for 12 minutes. After microwave baking, breads were browned or conventional browning times increased, crust hardness and weight loss of breads increased. When susceptors were used, desired browning and hardness were obtained on the bottom surfaces of the breads. However, they did not affect top surface color significantly. The optimum microwave baking conditions for safety susceptor and standard susceptor were found as 5.0 minutes at 20% power and 4.5 minutes at 20% power, respectively. Breads coated with a solution composed of 10.5% sodium bicarbonate, 31.6% glucose, 5.3% glycine and 52.6% water (by weight) did not have the desired crust color and hardness. Conventional browning at 200°C for 8 minutes was an alternative to achieve browning on top and bottom surfaces and crust formation on the bottom surface.

 

Key Words: Microwave baking, Bread, Nonenzymatic browning, Coating, Susceptor.