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Article: Enzymic transformation of isoflavone phytoestrogens in soymilk by β-glucosidase-producing bifidobacteria
Title | Enzymic transformation of isoflavone phytoestrogens in soymilk by β-glucosidase-producing bifidobacteria |
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Authors | |
Keywords | β-glucosidase Bifidobacteria Equol Isoflavones Soymilk |
Issue Date | 2002 |
Publisher | Wiley-Blackwell Publishing, Inc. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0022-1147 |
Citation | Journal Of Food Science, 2002, v. 67 n. 8, p. 3104-3113 How to Cite? |
Abstract | Five strains of bifidobacteria were screened for β-glucosidase activity using p-nitrophenyl-β-D-glucopyranoside as the substrate, and selected strains were used to ferment soymilk. Enumeration of viable bifidobacteria and quantification of isoflavones using HPLC were performed at 0, 12, 24, 36, and 48 h of incubation. Four strains produced β-glucosidase. B. pseudolongum and B. longum-a displayed the best growth in soymilk, with an increase of 1.3 log10 CFU/mL after 12 h. B. animalis, B. longum-a, and B. pseudolongum caused hydrolysis of isoflavone malonyl-, acetyl- and β-glucosides to form aglycones, and transformed daidzein to equol in soymilk. Fermentation of soymilk with Bifidobacterium sp. resulted in a significant increase (p < 0.05) in the concentration of aglycones. |
Persistent Identifier | http://hdl.handle.net/10722/144469 |
ISSN | 2021 Impact Factor: 3.693 2020 SCImago Journal Rankings: 0.772 |
References |
DC Field | Value | Language |
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dc.contributor.author | Tsangalis, D | en_HK |
dc.contributor.author | Ashton, JF | en_HK |
dc.contributor.author | Mcgill, AEJ | en_HK |
dc.contributor.author | Shah, NP | en_HK |
dc.date.accessioned | 2012-01-20T09:02:14Z | - |
dc.date.available | 2012-01-20T09:02:14Z | - |
dc.date.issued | 2002 | en_HK |
dc.identifier.citation | Journal Of Food Science, 2002, v. 67 n. 8, p. 3104-3113 | en_HK |
dc.identifier.issn | 0022-1147 | en_HK |
dc.identifier.uri | http://hdl.handle.net/10722/144469 | - |
dc.description.abstract | Five strains of bifidobacteria were screened for β-glucosidase activity using p-nitrophenyl-β-D-glucopyranoside as the substrate, and selected strains were used to ferment soymilk. Enumeration of viable bifidobacteria and quantification of isoflavones using HPLC were performed at 0, 12, 24, 36, and 48 h of incubation. Four strains produced β-glucosidase. B. pseudolongum and B. longum-a displayed the best growth in soymilk, with an increase of 1.3 log10 CFU/mL after 12 h. B. animalis, B. longum-a, and B. pseudolongum caused hydrolysis of isoflavone malonyl-, acetyl- and β-glucosides to form aglycones, and transformed daidzein to equol in soymilk. Fermentation of soymilk with Bifidobacterium sp. resulted in a significant increase (p < 0.05) in the concentration of aglycones. | en_HK |
dc.language | eng | en_US |
dc.publisher | Wiley-Blackwell Publishing, Inc. The Journal's web site is located at http://www.wiley.com/bw/journal.asp?ref=0022-1147 | en_HK |
dc.relation.ispartof | Journal of Food Science | en_HK |
dc.subject | β-glucosidase | en_HK |
dc.subject | Bifidobacteria | en_HK |
dc.subject | Equol | en_HK |
dc.subject | Isoflavones | en_HK |
dc.subject | Soymilk | en_HK |
dc.title | Enzymic transformation of isoflavone phytoestrogens in soymilk by β-glucosidase-producing bifidobacteria | en_HK |
dc.type | Article | en_HK |
dc.identifier.email | Shah, NP: npshah@hku.hk | en_HK |
dc.identifier.authority | Shah, NP=rp01571 | en_HK |
dc.description.nature | link_to_subscribed_fulltext | en_US |
dc.identifier.scopus | eid_2-s2.0-0036812272 | en_HK |
dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-0036812272&selection=ref&src=s&origin=recordpage | en_HK |
dc.identifier.volume | 67 | en_HK |
dc.identifier.issue | 8 | en_HK |
dc.identifier.spage | 3104 | en_HK |
dc.identifier.epage | 3113 | en_HK |
dc.publisher.place | United States | en_HK |
dc.identifier.scopusauthorid | Tsangalis, D=6508214893 | en_HK |
dc.identifier.scopusauthorid | Ashton, JF=7102016481 | en_HK |
dc.identifier.scopusauthorid | Mcgill, AEJ=24326143500 | en_HK |
dc.identifier.scopusauthorid | Shah, NP=7401823907 | en_HK |
dc.identifier.issnl | 0022-1147 | - |