Frozen yogurt from sheep milk

ABSTRACT The aim of this work was to develop frozen yogurt formulations from powdered yogurt of sheep milk, through an experimental design of 2², with a triplicate at the central point. The variables studied were emulsifier/stabilizer (0.50%, 0.75%, and 1.00%) and powder for cream (2.75%, 3.00% and...

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Bibliographic Details
Main Authors: Elisangela de Abreu, Jamile Zeni, Clarice Steffens, Juliana Steffens
Format: Article
Language:English
Published: Universidade Federal De Viçosa
Series:Revista Ceres
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0034-737X2016000500605&lng=en&tlng=en
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Summary:ABSTRACT The aim of this work was to develop frozen yogurt formulations from powdered yogurt of sheep milk, through an experimental design of 2², with a triplicate at the central point. The variables studied were emulsifier/stabilizer (0.50%, 0.75%, and 1.00%) and powder for cream (2.75%, 3.00% and 3.25%). The parameters evaluated were sensory characteristics, texture, and microbiological counts. The results showed that the formulations had counts of S. aureus and fecal coliforms at 45 °C, lactic acid bacteria and Salmonella sp within the limits established by legislation. Instrumental analysis of texture-related parameters (firmness, cohesiveness, adhesiveness, and consistency) of the formulations with different concentrations of emulsifier/stabilizer and cream powder showed no significant differences (p > 0.05). In sensory analysis, Formulations 3 and 4 with lower concentrations of emulsifier/stabilizer scored the highest values, thus indicating good acceptability.
ISSN:2177-3491