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Levente Karaffa University of Debrecen Department of Microbiology and Biotechnology, Faculty of Sciences H-4010 Debrecen

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Erzsébet Sándor Department of Microbiology and Biotechnology, Faculty of Sciences, University of Debrecen Department of Microbiology and Biotechnology, Faculty of Sciences H-4010, P.O. Box 63, Debrecen, Hungary H-4010 Debrecen

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Erzsébet Fekete Department of Microbiology and Biotechnology, Faculty of Sciences, University of Debrecen Department of Microbiology and Biotechnology, Faculty of Sciences H-4010, P.O. Box 63, Debrecen, Hungary H-4010 Debrecen

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Fungi, in particular Aspergilli, are well known for their potential to overproduce a variety of organic acids. These microorganisms have an intrinsic ability to accumulate these substances and it is generally believed that this provides the fungi with an ecological advantage, since they grow rather well at pH 3 to 5, while some species even tolerate pH values as low as 1. 5. Organic acid production can be stimulated and in a number of cases conditions have been found that result in almost quantitative conversion of carbon substrate into acid. This is exploited in large-scale production of a number of organic acids like citric-, gluconic- and itaconic acid. Both in production volume as well as in knowledge available, citrate is by far the major organic acid. Citric acid (2-hydroxy-propane-1, 2, 3-tricarboxylic acid) is a true bulk product with an estimated global production of over 900 thousand tons in the year 2000. Till the beginning of the 20th century, it was exclusively extracted from lemons. Since the global market was dominated by an Italian cartel, other means of production were sought. Chemical synthesis was possible, but not suitable due to expensive raw materials and a complicated process with low yield. The discovery of citrate accumulation by Aspergillus niger led to a rapid development of a fermentation process, which only a decade later accounted for a large part of the global production. The application of citric acid is based on three of its properties: (1) acidity and buffer capacity, (2) taste and flavour, and (3) chelation of metal ions. Because of its three acid groups with pKa values of 3. 1, 4. 7 and 6. 4, citrate is able to produce a very low pH in solution, but is also useful as a buffer over a broad range of pH values (2 to 7). Citric acid has a pleasant acid taste which leaves little aftertaste. It sometimes enhances flavour, but is also able to mask sweetness, such as the aspartame taste in diet beverages. Chelation of metal ions is a very important property that has led to applications such as antioxidant and preservative. Moreover, it is a “natural” substance and fully biodegradable.

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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. Zsuzsanna SCHAFF (2nd Department of Pathology, 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.)

 

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Editorial Correspondence:
Acta Microbiologica et Immunologica Hungarica
Institute of Medical Microbiology
Semmelweis University
P.O. Box 370
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2021  
Web of Science  
Total Cites
WoS
696
Journal Impact Factor 2,298
Rank by Impact Factor Immunology 141/161
Microbiology 118/136
Impact Factor
without
Journal Self Cites
2,143
5 Year
Impact Factor
1,925
Journal Citation Indicator 0,39
Rank by Journal Citation Indicator Immunology 146/177
Microbiology 129/157
Scimago  
Scimago
H-index
29
Scimago
Journal Rank
0,362
Scimago Quartile Score Immunology and Microbiology (miscellaneous) (Q3)
Medicine (miscellaneous) (Q3)
Scopus  
Scopus
Cite Score
3,6
Scopus
CIte Score Rank
General Immunology and Microbiology 26/56 (Q2)
Infectious Diseases 149/295 (Q3)
Microbiology (medical) 66/118 (Q3)
Scopus
SNIP
0,598

2020  
Total Cites 662
WoS
Journal
Impact Factor
2,048
Rank by Immunology 145/162(Q4)
Impact Factor Microbiology 118/137 (Q4)
Impact Factor 1,904
without
Journal Self Cites
5 Year 0,671
Impact Factor
Journal  0,38
Citation Indicator  
Rank by Journal  Immunology 146/174 (Q4)
Citation Indicator  Microbiology 120/142 (Q4)
Citable 42
Items
Total 40
Articles
Total 2
Reviews
Scimago 28
H-index
Scimago 0,439
Journal Rank
Scimago Immunology and Microbiology (miscellaneous) Q4
Quartile Score Medicine (miscellaneous) Q3
Scopus 438/167=2,6
Scite Score  
Scopus General Immunology and Microbiology 31/45 (Q3)
Scite Score Rank  
Scopus 0,760
SNIP
Days from  225
submission
to acceptance
Days from  118
acceptance
to publication
Acceptance 19%
Rate

2019  
Total Cites
WoS
485
Impact Factor 1,086
Impact Factor
without
Journal Self Cites
0,864
5 Year
Impact Factor
1,233
Immediacy
Index
0,286
Citable
Items
42
Total
Articles
40
Total
Reviews
2
Cited
Half-Life
5,8
Citing
Half-Life
7,7
Eigenfactor
Score
0,00059
Article Influence
Score
0,246
% Articles
in
Citable Items
95,24
Normalized
Eigenfactor
0,07317
Average
IF
Percentile
7,690
Scimago
H-index
27
Scimago
Journal Rank
0,352
Scopus
Scite Score
320/161=2
Scopus
Scite Score Rank
General Immunology and Microbiology 35/45 (Q4)
Scopus
SNIP
0,492
Acceptance
Rate
16%

 

Acta Microbiologica et Immunologica Hungarica
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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)

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