Achieving dough stability as bakers' portfolios expand
Consumers' demand for natural, more healthful products presents challenges for bakers who strive to produce high quality products without sacrificing production efficiencies, finished product integrity or driving up costs.
Photo courtesy of Danisco.
Bakers continue to be challenged by consumer demands for more healthful products that retain the quality, flavor and texture of their old world counterparts. Consumers are demanding reductions in trans fats, the inclusion of whole grains, and fewer additives and preservatives in their bakery products.
In addition to “natural” requirements, the consumer's desire to have cleaner labels provides both manufacturers and ingredient suppliers with challenges and opportunities to bring new products to the market.
Last year, 33 percent of new products launched in the United States were marketed as “natural,” according to statistics from Danisco, New Century, Kan. And “natural” claims on bread products doubled from 2006 to 2007, says Danisco's Linda Dunning, technical applications director.
In addition, says Pierre Tossut, Group R&D leader for Puratos, Belgium, consumers want quality, taste, a pleasurable eating experience, visual gratification and products that provide good health and convenience in baked products that can be eaten at a variety of occasions.
Natural, more healthful, convenient, visually gratifying — all of these criteria place a big demand on bakers, who also must maintain efficiencies, production quotas and profitability.
Luckily, ingredient suppliers realize these demands and are hard at work developing solutions that can help bakers improve the nutrition of their products while maintaining optimal economic benefits for bakers.
Operation: enzyme
If there is one operative word for the latest in bakery ingredients, it's enzymes. These powerful biomolecules are generally protein derivatives developed through fermentation and act as catalysts in chemical reactions. Newer enzymes are more specialized than their older cousins in both action and effect by acting more specifically to improve loaf volume, crumb structure, machineability, shelf life and eating quality often without adding excessive expense to the finished product. Dosage is always important, with more not necessarily being better. Microdispensing equipment can help prevent over-weighing mistakes.
New enzyme technology has developed lipase and xylanase enzymes that provide dough strength by solubilizing non-starch polysaccharides, enabling them to absorb the precise amount of water for hydration, allowing for better structure. This is especially important for high fiber and ancient grain breads, which can be hard to handle.
Ingredient manufacturers are hard at work developing systems that will improve the condition of artisan doughs, while providing that all-important clean label. Caravan Ingredients, Lenexa, Kan., has a line of products designed for cleaner label applications that artisan bakers are finding to be quite versatile. This line of products can be used to make bagels, English muffins, panini and multi-grain, cracked wheat and rye breads with great success.
“A versatile multi-purpose enzyme/ascorbic acid blend from Caravan is used to replace chemical oxidation, dough conditioners/emulsifiers, chemical reducing agents and also contains crumb softening enzymes for extended shelf life,” says Ron Zelch, CMB, product knowledge and training manager, Product Development Center, Caravan Ingredients. In addition, this enzyme/ascorbic acid blend also is recommended for frozen dough production, providing great frozen dough storage shelf life. Caravan also offers an organic certified version. These ingredients are finding good success in all types of bread and roll production.
Emulsifiers and other dough improvers
A newer generation of enzymes has more specialized effects on many aspects of dough stability.
Photo courtesy of Danisco.
Emulsifiers may be used in conjunction with enzymes, providing a cost benefit for the baker, but most emulsifiers generally do not come under the “natural” labeling claim. The all-natural label can be used when using solely enzymes as dough conditioners, or when lecithin is the emulsifier of choice.
Lecithin, while not as effective as chemical emulsifiers, can be used to achieve the desired clean label. It is used to emulsify fats and helps develop a more consistent crumb and retain moisture. Liquid lecithin is more difficult to use than dry.
Other ingredients that can improve dough conditions are hydrocolloids and gums, such as carrageenan, for moisture control and to extend shelf life in frozen doughs.
The addition of gluten, especially in artisan and ancient grain breads improves elasticity. Ascorbic acid also makes doughs more elastic and less extensible while providing a more acidic environment for an improvement of the action of yeast.
Even spices, such as powdered ginger, can be added to doughs for the improvement of yeast growth. The amounts added to a formula need not be great. In fact the flavor of the spice can be undetectable in taste tests, yet can provide significant improvement in yeast performance.
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© 2012 Penton Media Inc.
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