Acta Microbiologica et Immunologica Hungarica
Volume/Issue:
Volume 53: Issue 2
Enhancement of Ethyl Propionate Synthesis by poly (AAc-co-HPMA-cl-MBAm)-immobilized  Pseudomonas aeruginosa MTCC-4713, Exposed to Hg2+ and NH4+ Ions
Authors:
S. S. Kanwar Department of Biotechnology, Himachal Pradesh University Summer Hill, Shimla-171 005, India

Search for other papers by S. S. Kanwar in
Current site
Google Scholar
PubMed Close
,
H. K. Verma Department of Biotechnology, Himachal Pradesh University Summer Hill, Shimla-171 005, India

Search for other papers by H. K. Verma in
Current site
Google Scholar
PubMed Close
,
S. Pathak Department of Biotechnology, Himachal Pradesh University Summer Hill, Shimla-171 005, India

Search for other papers by S. Pathak in
Current site
Google Scholar
PubMed Close
,
R. K. Kaushal Department of Biotechnology, Himachal Pradesh University Summer Hill, Shimla-171 005, India

Search for other papers by R. K. Kaushal in
Current site
Google Scholar
PubMed Close
,
Y. Kumar Department of Chemistry, Himachal Pradesh University Summer Hill, Shimla-171 005, India

Search for other papers by Y. Kumar in
Current site
Google Scholar
PubMed Close
,
M. L. Verma Department of Biotechnology, Himachal Pradesh University Summer Hill, Shimla-171 005, India

Search for other papers by M. L. Verma in
Current site
Google Scholar
PubMed Close
,
S. S. Chimni Department of Chemistry, Guru Nanak Dev University Amritsar-143 005, India

Search for other papers by S. S. Chimni in
Current site
Google Scholar
PubMed Close
, and
G. S. Chauhan Department of Chemistry, Himachal Pradesh University Summer Hill, Shimla-171 005, India

Search for other papers by G. S. Chauhan in
Current site
Google Scholar
PubMed Close
Pages:
195–207
Online Publication Date:
20 Jul 2006
Publication Date:
01 Jun 2006
Article Category:
Journal Article
DOI:
https://doi.org/10.1556/amicr.53.2006.2.6
Keywords:
thermo-tolerant lipase; P. aeruginosa; immobilization; poly (AAc-co-HPMA-cl-MBAm) hydrogel; Hg2+ and NH4+ ions promoted ethyl propionate synthesis
Restricted access

A purified alkaline thermo-tolerant bacterial lipase from Pseudomonas aeruginosa MTCC-4713 was immobilized on a poly (AAc-co-HPMA-cl-MBAm) hydrogel. The hydrogel-bound lipase achieved 93.6% esterification of ethanol and propionic acid (300 mM: 100 mM) into ethyl propionate at temperature 65oC in 3 h in the presence of a molecular sieve (3 Å). In contrast, hydrogel-immobilized lipase pre-exposed to 5 mM of HgCl2 orNH4Cl resulted in approximately 97% conversion of reactants in 3 h into ethyl propionate under identical conditions. The salt-exposed hydrogel was relatively more efficient in repetitive esterification than the hydrogel- bound lipase not exposed to any of the cations. Moreover, bound lipase exposed Hg2+ or NH4+ ions showed altered specificity towards p-nitrophenyl esters and was more hydrolytic towards higher C-chain p-nitrophenyl esters (p-nitrophenyl laurate and p-nitrophenyl palmitate with C 12 and C 16 chain) than the immobilized lipase not exposed to any of the salts. The later showed greater specificity towards p-nitrophenyl caprylate (C 8).

  • Collapse
  • Expand
Cover Acta Microbiologica et Immunologica Hungarica
Acta Microbiologica et Immunologica Hungarica A Quarterly of the Hungarian Academy of Sciences
Print ISSN:
1217-8950
Online ISSN:
1588-2640

Senior editors

Editor-in-Chief: Prof. Dóra Szabó (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)

Managing Editor: Dr. Béla Kocsis (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)

Co-editor: Dr. Andrea Horváth (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)

Editorial Board

  • Prof. Éva ÁDÁM (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)
  • Prof. Sebastian AMYES (Department of Medical Microbiology, University of Edinburgh, Edinburgh, UK.)
  • Dr. Katalin BURIÁN (Institute of Clinical Microbiology University of Szeged, Szeged, Hungary; Department of Medical Microbiology and Immunobiology, University of Szeged, Szeged, Hungary.)
  • Dr. Orsolya DOBAY (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)
  • Prof. Ildikó Rita DUNAY (Institute of Inflammation and Neurodegeneration, Medical Faculty, Otto-von-Guericke University, Magdeburg, Germany; Center for Behavioral Brain Sciences (CBBS), Magdeburg, Germany)
  • Prof. Levente EMŐDY(Department of Medical Microbiology and Immunology, University of Pécs, Pécs, Hungary.)
  • Prof. Anna ERDEI (Department of Immunology, Eötvös Loránd University, Budapest, Hungary, MTA-ELTE Immunology Research Group, Eötvös Loránd University, Budapest, Hungary.)
  • Prof. Éva Mária FENYŐ (Division of Medical Microbiology, University of Lund, Lund, Sweden)
  • Prof. László FODOR (Department of Microbiology and Infectious Diseases, University of Veterinary Medicine, Budapest, Hungary)
  • Prof. József KÓNYA (Department of Medical Microbiology, University of Debrecen, Debrecen, Hungary)
  • Prof. Yvette MÁNDI (Department of Medical Microbiology and Immunobiology, University of Szeged, Szeged, Hungary)
  • Prof. Károly MÁRIALIGETI (Department of Microbiology, Eötvös Loránd University, Budapest, Hungary)
  • Prof. János MINÁROVITS (Department of Oral Biology and Experimental Dental Research, University of Szeged, Szeged, Hungary)
  • Prof. Béla NAGY (Centre for Agricultural Research, Institute for Veterinary Medical Research, Budapest, Hungary.)
  • Prof. István NÁSZ (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)
  • Prof. Kristóf NÉKÁM (Hospital of the Hospitaller Brothers in Buda, Budapest, Hungary.)
  • Dr. Eszter OSTORHÁZI (Institute of Medical Microbiology, Semmelweis University, Budapest, Hungary)
  • Prof. Rozália PUSZTAI (Department of Medical Microbiology and Immunobiology, University of Szeged, Szeged, Hungary)
  • Prof. Peter L. RÁDY (Department of Dermatology, University of Texas, Houston, Texas, USA)
  • Prof. Éva RAJNAVÖLGYI (Department of Immunology, Faculty of Medicine, University of Debrecen, Debrecen, Hungary)
  • Prof. Ferenc ROZGONYI (Institute of Laboratory Medicine, Semmelweis University, Budapest, Hungary)
  • Prof. Joseph G. SINKOVICS (The Cancer Institute, St. Joseph’s Hospital, Tampa, Florida, USA)
  • Prof. Júlia SZEKERES (Department of Medical Biology, University of Pécs, Pécs, Hungary.)
  • Prof. Mária TAKÁCS (National Reference Laboratory for Viral Zoonoses, National Public Health Center, Budapest, Hungary.)
  • Prof. Edit URBÁN (Department of Medical Microbiology and Immunology University of Pécs, Pécs, Hungary; Institute of Translational Medicine, University of Pécs, Pécs, Hungary.)

 

Editorial Office:
Akadémiai Kiadó Zrt.
Budafoki út 187-187, A/3, H-1117 Budapest, Hungary

Editorial Correspondence:
Acta Microbiologica et Immunologica Hungarica
Institute of Medical Microbiology
Semmelweis University
P.O. Box 370
H-1445 Budapest, Hungary
Phone: + 36 1 459 1500 ext. 56101
Fax: (36 1) 210 2959
E-mail: amih@med.semmelweis-univ.hu

 Indexing and Abstracting Services:

  • Biological Abstracts
  • BIOSIS Previews
  • CAB Abstracts
  • CABELLS Journalytics
  • Chemical Abstracts
  • Global Health
  • Index Medicus
  • Index Veterinarius
  • Medline
  • Referativnyi Zhurnal
  • SCOPUS
  • Science Citation Index Expanded

2024  
Scopus  
CiteScore  
CiteScore rank  
SNIP  
Scimago  
SJR index 0.41
SJR Q rank Q3

2023  
Web of Science  
Journal Impact Factor 1.3
Rank by Impact Factor Q4 (Immunology)
Journal Citation Indicator 0.31
Scopus  
CiteScore 2.3
CiteScore rank Q3 (Infectious Diseases)
SNIP 0.389
Scimago  
SJR index 0.308
SJR Q rank Q3

Acta Microbiologica et Immunologica Hungarica
Publication Model Hybrid
Submission Fee none
Article Processing Charge 1100 EUR/article (only for OA publications)
Regional discounts on country of the funding agency World Bank Lower-middle-income economies: 50%
World Bank Low-income economies: 100%
Further Discounts Editorial Board / Advisory Board members: 50%
Corresponding authors, affiliated to an EISZ member institution subscribing to the journal package of Akadémiai Kiadó: 100%
Subscription fee 2025 Online subsscription: 772 EUR / 848 USD
Print + online subscription: 860 EUR / 944 USD
Subscription Information Online subscribers are entitled access to all back issues published by Akadémiai Kiadó for each title for the duration of the subscription, as well as Online First content for the subscribed content.
Purchase per Title Individual articles are sold on the displayed price.

Acta Microbiologica et Immunologica Hungarica
Language English
Size A4
Year of
Foundation		 1954
Volumes
per Year		 1
Issues
per Year		 4
Founder Magyar Tudományos Akadémia
Founder's
Address		 H-1051 Budapest, Hungary, Széchenyi István tér 9.
Publisher Akadémiai Kiadó
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1217-8950 (Print)
ISSN 1588-2640 (Online)

Monthly Content Usage

Abstract Views Full Text Views PDF Downloads
Dec 2024 6 0 0
Jan 2025 16 0 0
Feb 2025 10 0 0
Mar 2025 13 0 0
Apr 2025 16 0 0
May 2025 6 0 0
Jun 2025 9 0 0