미세캡슐화 마늘분말의 안정성 및 관능특성

Abstract

The objectives of this study are to encapsulate lyophilized garlic powder with various coating materials for reducing its unpleasant taste and odor and to investigate their physiochemical and taste masking properties. All coating materials used in this study were edible ones such as maltodextrin (MD), whey protein isolate (WPI), whole milk powder (WMP), and skim milk powder (SMP). To produce encapsulated garlic powders, lyophilized garlic powder was mixed with coating materials at the ratio of 1:1 followed by homogenization for 30 min, and then spray- or freezedried. Physiochemical property measurements and quantitative analyses were carried out for the encapsulated garlic powders. Encapsulated garlic powder using WMP with spray drying method showed the highest alliin concentration (4.131 mg/g) compared to those coated with other coating materials. Sensory evaluation showed that encapsulated garlic powder using WPI and WMP reduced unpleasant garlic taste and odor effectively. Milk fats in the WMP and hydrophobic chains of the proteins in WPI might bind with volatile and hydrophobic odor emitting molecules. In the evaluation for aqueous stability, encapsulated garlic powder using WMP showed better stability compared to others. This garlic taste and odor masking study can contribute to a number of possible health benefits by adding garlic powder to a wide variety of functional foods.