title: Sensory acceptance and survival of probiotic bacteria in ice cream produced with different overrun levels.
abstract: The effect of different overrun levels on the sensory acceptance and survival of probiotic bacteria in ice cream was investigated. Vanilla ice creams supplemented with Lactobacillus acidophilus were processed with overruns of 45%, 60%, and 90%. Viable probiotic bacterial counts and sensory acceptance were assessed. All the ice creams presented a minimum count of 6 log CFU/g at the end of 60 d of frozen storage. However, higher overrun levels negatively influenced cell viability, being reported a decrease of 2 log CFU/g for the 90% overrun treatment. In addition, it was not reported an influence about acceptability with respect to appearance, aroma, and taste of the ice creams (P > 0.05). Overall, the results suggest that lower overrun levels should be adopted during the manufacture of ice cream in order to maintain its probiotic status through the shelf life.
authors.affiliation: Faculdade de Tecnologia Termomecânica, Curso de Tecnologia de Alimentos, São Bernardo do Campo-São Paulo, Brasil.
authors.forename: Juliana L
authors.initials: JL
authors.lastname: Ferraz
authors.forename: Adriano G
authors.initials: AG
authors.lastname: Cruz
authors.forename: Rafael S
authors.initials: RS
authors.lastname: Cadena
authors.forename: Monica Q
authors.initials: MQ
authors.lastname: Freitas
authors.forename: Uelinton M
authors.initials: UM
authors.lastname: Pinto
authors.forename: Celio C
authors.initials: CC
authors.lastname: Carvalho
authors.forename: Jose A F
authors.initials: JA
authors.lastname: Faria
authors.forename: Helena M A
authors.initials: HM
authors.lastname: Bolini
mesh_terms: D000388:Air / Q000032:analysis; D001938:Brazil; D016000:Cluster Analysis; D015169:Colony Count, Microbial; D003258:Consumer Behavior; D005260:Female; D005421:Flavoring Agents / Q000032:analysis; D005511:Food Handling / Q000379:methods*; D005518:Food Preferences; D006801:Humans; D007054:Ice Cream / Q000032:analysis* / Q000382:microbiology*; D007779:Lactobacillus acidophilus / Q000254:growth & development* / Q000302:isolation & purification; D008297:Male; D050296:Microbial Viability; D009812:Odorants; D019936:Probiotics / Q000008:administration & dosage / Q000302:isolation & purification; D012639:Seeds / Q000737:chemistry; D012677:Sensation; D013649:Taste; D031669:Vanilla / Q000737:chemistry
chemical_list: D005421:Flavoring Agents