Jung DH, Jung JH, Seo DH, Ha SJ, Kweon DK, Park CS. One-pot bioconversion of sucrose to trehalose using enzymatic sequential reactions in combined cross-linked enzyme aggregates.
BIORESOURCE TECHNOLOGY 2013;
130:801-804. [PMID:
23357588 DOI:
10.1016/j.biortech.2012.12.162]
[Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Revised: 12/25/2012] [Accepted: 12/26/2012] [Indexed: 06/01/2023]
Abstract
Amylosucrase (AS), maltooligosyltrehalose synthase (MTS), and maltooligosyltrehalose trehalohydrolase (MTH) were used in combined cross-linked enzyme aggregates (combi-CLEAs) to achieve one-step bioconversion of sucrose to trehalose. Combi-CLEAs of three enzymes were successfully established with acetone and glutaraldehyde (GA) as a precipitant and a cross-linker, respectively. The optimum enzyme ratio was 8:0.5:0.5 (AS, 4mg:MTS, 0.25mg:MTH, 0.25mg). To improve trehalose production, bovine serum albumin was co-aggregated with enzymes as a proteic feeder. The trehalose production yield of combi-CLEAs was about 8% in each cycle on the basis of substrate added up to 400mM. Finally, the combi-CLEAs used in this experiment showed reusability of about five cycles without any activity loss.
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