Activity of passion fruit (Passiflora edulis) and guava (Psidium guajava) pulps on Lactobacillus acidophilus in refrigerated mousses Atividade das polpas de maracujá (Passiflora edulis) e goiaba (Psidium guajava) sobre Lactobacillus acidophilus em musses refrigeradas

Five pilot-scale mousse-making trials were produced and supplemented with Lactobacillus acidophilus La-5 probiotic culture: M1 with passion fruit concentrated juice (PJ); M2 with PJ and prebiotic fibre inulin; M3 with frozen passion fruit pulp (PP); M4 with frozen guava pulp (GP); M5 with GP and lac...

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Bibliographic Details
Main Authors: Flávia C. A. Buriti, Tiemy R. Komatsu, Susana M.I. Saad
Format: Article
Language:English
Published: Sociedade Brasileira de Microbiologia 2007-06-01
Series:Brazilian Journal of Microbiology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822007000200025
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Summary:Five pilot-scale mousse-making trials were produced and supplemented with Lactobacillus acidophilus La-5 probiotic culture: M1 with passion fruit concentrated juice (PJ); M2 with PJ and prebiotic fibre inulin; M3 with frozen passion fruit pulp (PP); M4 with frozen guava pulp (GP); M5 with GP and lactic acid. The products were stored refrigerated (4ºC) and M2 and M5 were also stored frozen (-18ºC). Viability of L. acidophilus decreased up to 4.7 log cfu.g-1 in the 21st day for refrigerated mousses containing passion fruit (M1, M2 and M3), whereas the probiotic population remained above 6 log cfu.g-1 in the mousses containing guava (M4 and M5). Inhibition due to acidity was discharged. The addition of fruits to probiotic products should be carefully planned because inhibition of probiotic strains might occur.<br>Cinco musses foram produzidas em escala piloto e suplementadas com a cultura probiótica de Lactobacillus acidophilus La-5: M1 - com suco concentrado de maracujá (SM); M2 - com SM e fibra prebiótica inulina; M3 - com polpa congelada de maracujá (PM); M4 - com polpa congelada de goiaba (PG); M5 - com PG e ácido lático. Os produtos foram armazenados refrigerados (4ºC) e M2 e M5 também congelados (-18ºC). A viabilidade de Lactobacillus acidophilus diminuiu em até 4,7 log ufc.g-1 ao 21º dia nas musses contendo maracujá (M1, M3 e M2), enquanto a população do probiótico permaneceu acima de 6 log ufc.g-1 naquelas contendo goiaba (M4 e M5). A inibição devido à acidez foi descartada. A adição de frutas aos produtos probióticos deve ser cuidadosamente planejada, uma vez que pode haver inibição das cepas probióticas.
ISSN:1517-8382
1678-4405