Researchers tout potential of probiotic coating for partially baked bread
BakeryandSnacks.com (2/5/2012) reported on a study which identified a probiotic coating added to the surface of bread through microcapsules, which can produce functional bread with similar characteristics to common bread. The research found that probiotic lactobacillus acidophilus can be applied as an edible coating to bread to produce added health benefits.
“Edible coatings have been used as a vehicle for microorganism and the physical properties of the resulting bread confirmed the potential use of this procedure for obtaining healthier baked goods,” said the study.
Probiotic bacteria often do not survive during processing and storage, which is seen as a limitation for application in food. However, in the present study microencapsulated L. acidophilus survived and could protect microcapsules during baking and storage time.
The researchers added L. acidophilus to a starch-based coating and applied it to the surface of partially baked breads. These types of breads were chosen because of the potential for obtaining functional bread combing microencapsulation and coating technologies due to the short baking time.
The researchers observed the survival of L. acidophilus after baking and after 24-hour storage. Fresh breads were sensory evaluated and the physical and chemical properties of bread crust were determined.
Further studies are currently underway to confirm the probiotic effects of these breads.
The paper printed in Journal Food Hydrocolloids, was titled ‘Viability of some probiotic coatings in bread and its effect on the crust mechanical properties’ by R. Altamirano-Fortoul et.al. http://dx.doi.org/10.1016/j.foodhyd.2012.02.015