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Effects of lactulose supplementation on the growth of bifidobacteria and biotransformation of isoflavone glycosides to isoflavone aglycones in soymilk.
J Agric Food Chem. 2008 Jun 25; 56(12):4703-9.JA

Abstract

Bifidobacterium animalis subsp. lactis bb12 and B. longum 20099 were used to hydrolyze isoflavone glycosides (IG) to biologically active forms, which are isoflavone aglycones (IA), in soymilk (SM) prepared from soy protein isolate (SPI) and SM supplemented with 0.5% (w/v) of lactulose (SML). Supplementation of lactulose significantly (p < 0.05) enhanced the viable counts of B. animalis subsp. lactis bb12 and B. longum 20099 up to 2.34 and 2.15 log CFU/mL, respectively. Bifidobacterium animalis subsp. lactis bb12 and B. longum 20099 utilized 3.32 and 3.75 mg/mL of lactulose at 24 h of incubation, respectively. Supplementation of lactulose also appeared to be a key factor in decreasing the pH of SML. The biotransformation of IG to IA was enhanced significantly by 6.8-17.1% and 12.8-13.5% in SML by B. animalis subsp. lactis bb12 and B. longum 20099, respectively. However, the presence of lactulose in SML showed the stimulating effect on B. longum 20099 only after 12 h of incubation. Isoflavone aglycones ranged from 69.5 to 77.1% of total isoflavone compounds in SML after incubation.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Pham TT
School of Molecular Sciences, Faculty of Health, Engineering and Science, Victoria University, Werribee Campus, P.O. Box 14428, Melbourne, Victoria 8001, Australia.
Shah NP
No affiliation info available

MeSH

BifidobacteriumColony Count, MicrobialFermentationGlycosidesHydrogen-Ion ConcentrationIsoflavonesLactuloseProbioticsSoy Milk

Pub Type(s)

Journal Article

Language

eng

PubMed ID

18500812

Citation

Pham, Thuy T., and Nagendra P. Shah. "Effects of Lactulose Supplementation On the Growth of Bifidobacteria and Biotransformation of Isoflavone Glycosides to Isoflavone Aglycones in Soymilk." Journal of Agricultural and Food Chemistry, vol. 56, no. 12, 2008, pp. 4703-9.
Pham TT, Shah NP. Effects of lactulose supplementation on the growth of bifidobacteria and biotransformation of isoflavone glycosides to isoflavone aglycones in soymilk. J Agric Food Chem. 2008;56(12):4703-9.
Pham, T. T., & Shah, N. P. (2008). Effects of lactulose supplementation on the growth of bifidobacteria and biotransformation of isoflavone glycosides to isoflavone aglycones in soymilk. Journal of Agricultural and Food Chemistry, 56(12), 4703-9. https://doi.org/10.1021/jf072716k
Pham TT, Shah NP. Effects of Lactulose Supplementation On the Growth of Bifidobacteria and Biotransformation of Isoflavone Glycosides to Isoflavone Aglycones in Soymilk. J Agric Food Chem. 2008 Jun 25;56(12):4703-9. PubMed PMID: 18500812.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Effects of lactulose supplementation on the growth of bifidobacteria and biotransformation of isoflavone glycosides to isoflavone aglycones in soymilk. AU - Pham,Thuy T, AU - Shah,Nagendra P, Y1 - 2008/05/24/ PY - 2008/5/27/pubmed PY - 2008/9/3/medline PY - 2008/5/27/entrez SP - 4703 EP - 9 JF - Journal of agricultural and food chemistry JO - J Agric Food Chem VL - 56 IS - 12 N2 - Bifidobacterium animalis subsp. lactis bb12 and B. longum 20099 were used to hydrolyze isoflavone glycosides (IG) to biologically active forms, which are isoflavone aglycones (IA), in soymilk (SM) prepared from soy protein isolate (SPI) and SM supplemented with 0.5% (w/v) of lactulose (SML). Supplementation of lactulose significantly (p < 0.05) enhanced the viable counts of B. animalis subsp. lactis bb12 and B. longum 20099 up to 2.34 and 2.15 log CFU/mL, respectively. Bifidobacterium animalis subsp. lactis bb12 and B. longum 20099 utilized 3.32 and 3.75 mg/mL of lactulose at 24 h of incubation, respectively. Supplementation of lactulose also appeared to be a key factor in decreasing the pH of SML. The biotransformation of IG to IA was enhanced significantly by 6.8-17.1% and 12.8-13.5% in SML by B. animalis subsp. lactis bb12 and B. longum 20099, respectively. However, the presence of lactulose in SML showed the stimulating effect on B. longum 20099 only after 12 h of incubation. Isoflavone aglycones ranged from 69.5 to 77.1% of total isoflavone compounds in SML after incubation. SN - 1520-5118 UR - https://www.unboundmedicine.com/medline/citation/18500812/Effects_of_lactulose_supplementation_on_the_growth_of_bifidobacteria_and_biotransformation_of_isoflavone_glycosides_to_isoflavone_aglycones_in_soymilk_ DB - PRIME DP - Unbound Medicine ER -