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Journal of Applied Sciences
Year: 2008  |  Volume: 8  |  Issue: 4  |  Page No.: 672 - 676

The Use of Xylanases from Different Microbial Origin in Bread Baking and Their Effects on Bread Qualities

Omar Al-Widyan, Moayad H. Khataibeh and Khaled Abu-Alruz    

Abstract: Effects of xylanases on bread quality were examined. Enzymes used were endo-xylanase (EC 3.2.1.8) from different sources of microorganisms. Baked loaves were assessed for Loaves volume, colour and staling rate. Xylanases produced from rumen microorganisms M6 had clearly positive effects on loaf volume of bread as well as anti-firming potential. M3 (produced from Trichoderma longibrachiatum) improved crumb softness. The use of xylanase for breadmaking lowered firmness of bread crumb effectively compared with control loaf. It can be summarized that xylanases had significant positive effects on bread characteristics. In particular, they had advantage in retarding the staling rate of bread. It is recommended that the optimum dosage of enzymes, method of application in industrial scale especially with xylanase should be studied further in order to gain the great advantages of enzyme addition in breadmaking.

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