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Advantages And Disadvantages Of Frozen Dough

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It has been believed from ages that there is no substitute for fresh baked product. However the current trend in the baking industry is to use frozen dough to manufacture quality product because it can be quickly transformed into fresh baked product. Main advantages of freezing of dough are reduction of losses caused by aging of products and harmonization of product with the market demands (Dodic et al, 2007). However use of frozen dough has certain disadvantages such as its variable performance and loss of stability over long term frozen storage (Inoue and Bushuk, 1991; Berglund 1988). All this results in prolonged final fermentation time, lower loaf volume, and poor bread characteristics (shape of bread, uniform pores, …show more content…

Water influences the wheat and wheat products from the point of its storage to its final processed product. Water is required for gluten formation, cohesiveness of dough and it acts as a medium for all types of interactions and biological reactions that occur during processing of dough into a bakery product. Carbon dioxide produced by yeast during fermentation is dissolved into the water present in dough phase. The same carbon dioxide later expands and gives rise to porous texture to the fermented bakery products. Process such as gelatinization of starch and coagulation of gluten involve at the time of baking involve movement of water within dough system. In oven the starch granules starts to swell around 450c and gelatinization begins at around 600c . Gelatinization of starch involves a change from an ordered, crystalline state to disordered amorphous state of starch granules. Starch granules need more water for this transition, which it takes from gluten …show more content…

Agar forms the strongest and most stable gels at lowest concentration. Agar gels are transparent and reversible upon heating and cooling. Therefore agar finds several uses in stabilizing food products. Carrageenans are also sulphated galactans from seaweed extracts. These are both gel- forming and non gel forming carageenan fractions. Both form stable complexes with proteins and other gums. Carrageenan are especially useful in dairy products because they form stabilizing complexes with milk proteins and suspended cocoa powder in milk and give a more acceptable texture to processed cheese and cream.
Some microbial gums also find use in foods. Two important ones are dextrans and xanthan gums. Dextran is a polysaccharides consisting of D- glucose units. Dextrans of molecular weight below 100,000 are readily soluble in water and are used in many food products. Xanthans are formed by the action of bacterium Xanthomonas compestris on D- glucose. The gum contains D- glucose, D-mannose and D-galacturonic acid and has a high molecular weight. It is dissolved in cold water and finds use in food as a stabilizer, emulisifier, thickener, suspending agent, bodying and foam enhancer (Whistler and Bemiller, 1972). Gums are widely used in baked goods to enhance dough handling properties, to increase overall quality of the fresh products and to extend shelf life of stored goods. Different hydrocolloids had been proved beneficial (sodium alginate,

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