Biosynthesis of cyclodextrin glucosyltransferase by immobilized Bacillus amyloliquefaciens in batch and continuous cultures (Record no. 41148)

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fixed length control field 01976nam a2200241Ia 4500
003 - CONTROL NUMBER IDENTIFIER
control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625124649.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-6809
008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION
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245 10 - TITLE STATEMENT
Title Biosynthesis of cyclodextrin glucosyltransferase by immobilized Bacillus amyloliquefaciens in batch and continuous cultures
490 0# - SERIES STATEMENT
Volume/sequential designation BioChemical Engineering Journal , 5(1), p.1-9, 2000
520 3# - SUMMARY, ETC.
Summary, etc. The immobilized cells of five bacterial cultures on different carriers were investigated for the production of cyclodextrin glucosyltransferase (CGTase). The entrapped cells of Bacillus amyloliquefaciens in calcium alginate showed the highest enzyme activity (70.8 U ml-1). The enzyme production with respect to alginate concentration, bead diameter, and maximal cell loading in the immobilization matrix was optimized. In repeated batch fermentation, the immobilized cells retained their ability to produce CGTase consistently over 14 cycles and the activity remain between 70 and 88 U ml-1 throughout the cycles. Continuous culture was investigated in packed-bed and fluidized-bed reactors. In packed-bed reactor, maximal productivity (23 KU l-1 h-1)with enzyme concentration of 48 U ml-1 and specific productivity of 141.8 U g wet cells-1 h-1 was attained at a dilution of 0.48 h-1. Continuous production in fluidized-bed reactor showed maximal productivity (30.4 KU l-1 h-1)with enzyme concentration of 53.0 U ml-1 and specific productivity of 230.9 U g wet cells-1 h-1 at a relatively high dilution rate of 0.57 h-1.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element CYCLODEXTRIN GLUCOSYLTRANSFERASE
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PRODUCTION
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element IMMOBILIZED CELLS
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element CONTINUOUS
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Abdel-Naby, A.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Reyad, R. M.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Abdel-Fattah, A. F.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1tRxhRNcXLlO30k9LnJWo1BrF6WLtKHGg/view?usp=drivesdk">https://drive.google.com/file/d/1tRxhRNcXLlO30k9LnJWo1BrF6WLtKHGg/view?usp=drivesdk</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
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Source of classification or shelving scheme Clasificación local
Koha item type Documentos solicitados
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  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-6809 25.06.2025 25.06.2025 Documentos solicitados