the re- constituted freeze dried yoghurt has a high con- tent of microorganisms, and the Lactobacilli- streptococci ratio is no different than the orig- inal yoghurt (KUMAr and MISHrA, 2004). Yo- ghurt powder used as a functional food can also be mixed with dried fruit particles to formulate a novel product and improve the reconstitution properties of the yoghurt. In this study, yoghurt and candied chestnuts, which are individually considered healthy prod- ucts, were combined to obtain a novel product with beneficial properties of both. the aim of the study was to determine physical properties such as moisture content, water activity, ash content, color (L*, a*, b* values) and color change (ΔE) ,
472 Ital. J. Food Sci., vol. 25 - 2013
handling properties such as bulk density and flowability, and reconstitution properties such as wettability and solubility, along with deter- mining of the survival of lactic acid bacteria in yoghurt powder.