Microbiological, physicochemical evaluation and sensory acceptance of kefir with graviola pulp

Kefir is a product obtained by fermentation of milk with kefir grains and cultures prepared from the grains. Considering the functional qualities of kefir and seeking the use of fruits from the Amazon region, a kefir beverage was produced with graviola pulp and its microbiological and physicochemica...

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Main Authors: Luciana Silva Rocha Contim, Ila Maria Aguiar Oliveira, José Cardoso Neto
Format: Article
Language:English
Published: Empresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG) 2018-08-01
Series:Revista do Instituto de Latícinios Cândido Tostes
Subjects:
Online Access:https://revistadoilct.com.br/rilct/article/view/604
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author Luciana Silva Rocha Contim
Ila Maria Aguiar Oliveira
José Cardoso Neto
author_facet Luciana Silva Rocha Contim
Ila Maria Aguiar Oliveira
José Cardoso Neto
author_sort Luciana Silva Rocha Contim
collection DOAJ
description Kefir is a product obtained by fermentation of milk with kefir grains and cultures prepared from the grains. Considering the functional qualities of kefir and seeking the use of fruits from the Amazon region, a kefir beverage was produced with graviola pulp and its microbiological and physicochemical characteristics were evaluated during the storage period under refrigeration, as well as its acceptability. The main groups of microorganisms presented in kefir were Lactobacillus, Lactococcus, yeast and acetic bacteria quantified in specific broths. The total number of microorganisms was similar for all groups, around 109cfu/g. At the end of 28 days of storage it was reduced to 107cfu/g. It was verified that the addition of graviola pulp and sugar to the natural kefir did not influence the behavior of its microbiota. Nine lactic acid bacteria were isolated from the kefir grains and were characterized as Lactococcuslactissubps. lactis. The pH value did not change significantly during 21 days of storage. The pH statistically increased  only on the 28th day of storage under refrigeration. The acidity (% of lactic acid) increased gradually during the storage period. The sensory analysis of kefir with graviola pulp showed an excellent acceptability.
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spelling doaj.art-6616387e08204606805bf9ec05320f992022-12-21T23:17:00ZengEmpresa de Pesquisa Agropecuária de Minas Gerais (EPAMIG)Revista do Instituto de Latícinios Cândido Tostes0100-36742238-64162018-08-017311910.14295/2238-6416.v73i1.604394Microbiological, physicochemical evaluation and sensory acceptance of kefir with graviola pulpLuciana Silva Rocha Contim0Ila Maria Aguiar Oliveira1José Cardoso Neto2Universidade Federal de GoiásUniversidade Federal do AmazonasUniversidade Federal do AmazonasKefir is a product obtained by fermentation of milk with kefir grains and cultures prepared from the grains. Considering the functional qualities of kefir and seeking the use of fruits from the Amazon region, a kefir beverage was produced with graviola pulp and its microbiological and physicochemical characteristics were evaluated during the storage period under refrigeration, as well as its acceptability. The main groups of microorganisms presented in kefir were Lactobacillus, Lactococcus, yeast and acetic bacteria quantified in specific broths. The total number of microorganisms was similar for all groups, around 109cfu/g. At the end of 28 days of storage it was reduced to 107cfu/g. It was verified that the addition of graviola pulp and sugar to the natural kefir did not influence the behavior of its microbiota. Nine lactic acid bacteria were isolated from the kefir grains and were characterized as Lactococcuslactissubps. lactis. The pH value did not change significantly during 21 days of storage. The pH statistically increased  only on the 28th day of storage under refrigeration. The acidity (% of lactic acid) increased gradually during the storage period. The sensory analysis of kefir with graviola pulp showed an excellent acceptability.https://revistadoilct.com.br/rilct/article/view/604alimentos funcionais, leite fermentado, bactérias láticas
spellingShingle Luciana Silva Rocha Contim
Ila Maria Aguiar Oliveira
José Cardoso Neto
Microbiological, physicochemical evaluation and sensory acceptance of kefir with graviola pulp
Revista do Instituto de Latícinios Cândido Tostes
alimentos funcionais, leite fermentado, bactérias láticas
title Microbiological, physicochemical evaluation and sensory acceptance of kefir with graviola pulp
title_full Microbiological, physicochemical evaluation and sensory acceptance of kefir with graviola pulp
title_fullStr Microbiological, physicochemical evaluation and sensory acceptance of kefir with graviola pulp
title_full_unstemmed Microbiological, physicochemical evaluation and sensory acceptance of kefir with graviola pulp
title_short Microbiological, physicochemical evaluation and sensory acceptance of kefir with graviola pulp
title_sort microbiological physicochemical evaluation and sensory acceptance of kefir with graviola pulp
topic alimentos funcionais, leite fermentado, bactérias láticas
url https://revistadoilct.com.br/rilct/article/view/604
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AT ilamariaaguiaroliveira microbiologicalphysicochemicalevaluationandsensoryacceptanceofkefirwithgraviolapulp
AT josecardosoneto microbiologicalphysicochemicalevaluationandsensoryacceptanceofkefirwithgraviolapulp