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Food Science and Technology International
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Effects of Culture, pH and Fat Concentration on Melting Rate and Sensory Characteristics of Probiotic Fermented Yellow Mombin (Spondias mombin L) Ice Creams

C.S. Favaro-Trindade

Universidade de São Paulo, Faculdade de Zootecnia e Engenharia de Alimentos Departamento de Engenharia de Alimentos. Avenida Duque de Caxias Norte 225 Caixa Postal 23, CEP 13 635 900, Pirassununga SP, Brazil,carmenft{at}usp.br

J.C. de Carvalho Balieiro

Universidade de São Paulo, Faculdade de Zootecnia e Engenharia de Alimentos Departamento de Engenharia de Alimentos. Avenida Duque de Caxias Norte 225 Caixa Postal 23, CEP 13 635 900, Pirassununga SP, Brazil

P. Felix Dias

Universidade de São Paulo, Faculdade de Zootecnia e Engenharia de Alimentos Departamento de Engenharia de Alimentos. Avenida Duque de Caxias Norte 225 Caixa Postal 23, CEP 13 635 900, Pirassununga SP, Brazil

F. Amaral Sanino

Universidade de São Paulo, Faculdade de Zootecnia e Engenharia de Alimentos Departamento de Engenharia de Alimentos. Avenida Duque de Caxias Norte 225 Caixa Postal 23, CEP 13 635 900, Pirassununga SP, Brazil

C. Boschini

Universidade de São Paulo, Faculdade de Zootecnia e Engenharia de Alimentos Departamento de Engenharia de Alimentos. Avenida Duque de Caxias Norte 225 Caixa Postal 23, CEP 13 635 900, Pirassununga SP, Brazil

Twelve fermented yellow mombin ice creams were produced with different starter cultures (Lactobacillus acidophilus 74-2, L. acidophilus LAC 4 and yoghurt starter culture), final pH (4.5 and 5) and concentrations of added cream (5 and 10%). Probiotic culture stability, melting properties and sensory acceptance were evaluated in ice cream samples. The mixes were frozen and stored for 105 days at -18°C. The melting rates were lower for samples with a pH of 4.5. Both probiotic cultures resisted the freezing process and, although a tendency for the counts to decrease during storage was detected, they were still higher than 10 6 cfu/g after 105 days, even in products with a pH of 4.5. A pH 4.5, 5% cream and L. acidophilus LAC 4 ice cream received significantly higher sensory scores when compared with pH 5, 10% cream and L. acidophilus 74-2 ice cream. The fermented yellow mombin ice cream was a suitable food for the delivery of L. acidophilus strains, with excellent viability and acceptable sensory characteristics.

Key Words: probiotics • ice cream • frozen storage • sensory evaluation • Lactobacillus acidophilus

Food Science and Technology International, Vol. 13, No. 4, 285-291 (2007)
DOI: 10.1177/1082013207082387
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