2003
DOI: 10.1007/s00253-003-1426-0
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Synthesis of ?-galactooligosaccharides with ?-galactosidase from Lactobacillus reuteri of canine origin

Abstract: Crude cell-free extracts from Lactobacillus reuteri grown on cellobiose, maltose, lactose and raffinose were assayed for glycosidic activities. When raffinose was used as the carbon source, alpha-galactosidase was produced, showing the highest yield at the beginning of the stationary growth phase. A 64 kDa enzyme was purified by ultra- and gel filtration, and characterized for its hydrolytic and synthetic activity. Highest hydrolytic activity was found at pH 5.0 at 50 degrees C ( K(M) 0.55 mM, V(max) 0.80 micr… Show more

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Cited by 53 publications
(37 citation statements)
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“…Family GH36 members originate from bacteria, fungi, and plants and carry out hydrolysis with a net retention of the anomeric configuration, which is why many enzymes from this family have been shown to possess transglycosylation activity (21)(22)(23)(24)(25)(26)(27). For their ability to hydrolyze ␣-galactosides non-digestible by humans and to synthesize diverse oligosaccharides, GH36 ␣-galactosidases have potential applications for the production of prebiotics.…”
mentioning
confidence: 99%
“…Family GH36 members originate from bacteria, fungi, and plants and carry out hydrolysis with a net retention of the anomeric configuration, which is why many enzymes from this family have been shown to possess transglycosylation activity (21)(22)(23)(24)(25)(26)(27). For their ability to hydrolyze ␣-galactosides non-digestible by humans and to synthesize diverse oligosaccharides, GH36 ␣-galactosidases have potential applications for the production of prebiotics.…”
mentioning
confidence: 99%
“…Természetesen a prokarióta eredetű -galaktozidáz enzimmel is egyre több kutatás foglalkozik [Leder et al, 1994, Yoon & Hwang 2008, Garro et al, 1996. A mikroorganizmusok extracellulárisan [Gote et al, 2004, Puchart et al, 2000, Shivam et al, 2010, Manzanares et al, 1998], illetve intracellulárisan [Carrera-Silva et al, 2006, Tzortzis et al, 2003, Xiao et al, 2000 szintetizálják az alfa-galaktozidáz enzimet.…”
Section: Előfordulásaunclassified
“…Érdekes, hogy ez az enzim két aktív centrummal rendelkezik és két N-terminális ( / ) 8 Víz jelenléte nélkül a galaktozidáz enzimek hidroláz aktivitásuk mellett mutatnak transzfer aktivitást is. Általában Gal--1,6, vagy Gal--1,3 kötéseket tartalmazó terméket szintetizálnak [Tzortzis et al, 2003, van Laere et al, 1999 és ritkábban Gal--1,4 kötéssel állítanak elő terméket. Egy Stachys affinis gumóiból izolált alfa-galaktozidáz enzimről írták le eddig, hogy…”
Section: áBra a Melibióz Hidrolíziseunclassified
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