Producing Powders Containing Active Dry Probiotics With the Aid of Spray Drying.

Producing Powders Containing Active Dry Probiotics With the Aid of Spray Drying. Adv Food Nutr Res. 2018;85:211-262 Authors: Fu N, Huang S, Xiao J, Chen XD Abstract Probiotics are microorganisms capable of conferring health benefits to humans and animals when ingested. Probiotic products that prevail in food market usually contain viable bacteria from Lactobacillus and Bifidobacterium genera. Bacterial strains in these genera often have complex nutrient requirements and tend to be fragile under environmental stresses. How to incorporate the cells into food matrix without causing undesired viability loss is a key issue for developing products of viable probiotics. Spray drying offers a rapid way to produce powders encapsulating probiotics in a matrix of protectant(s), which may extend the term of viability preservation and expand the application of probiotic products. In spray drying, feed solution that contains probiotic cells and dissolved or suspended protectant solids are atomized into droplets, which are quickly converted into particles by drying in a hot airflow. The harsh conditions and interplaying stresses make the maintenance of cell viability a challenging task. To enhance cell survival in dried powders, various approaches have been attempted, including the enhancement of the intrinsic stress tolerance of cells, adjustment of protectant composition, and optimization of the production process and dryer settings. This chapter...
Source: Advances in Food and Nutrition Research - Category: Nutrition Authors: Tags: Adv Food Nutr Res Source Type: research