World's Best Scientists 2026 revealed!
Marco Antônio Záchia Ayub

Marco Antônio Záchia Ayub

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 54 12825 11540 95 90 227 8344

Marco Antônio Záchia Ayub publications per year

The chart shows the history of publications by Marco Antônio Záchia Ayub between 1992 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Marco Antônio Záchia Ayub published across 34 years, from 1992 to 2025, averaging 8.8 papers a year. Output peaked at 22 publications in 2014. 15 of the 299 publications appeared in the last two years.

No. of publications
5 10 15 20
Bar chart. Horizontal axis: year, 1992 to 2025. Vertical axis: number of publications, 0 to 22. Peak 22 publications in 2014. 1992: 1 publication 1993: 1 publication 1994: 0 publications 1995: 1 publication 1996: 3 publications 1997: 4 publications 1998: 7 publications 1999: 5 publications 2000: 9 publications 2001: 7 publications 2002: 10 publications 2003: 6 publications 2004: 4 publications 2005: 7 publications 2006: 9 publications 2007: 12 publications 2008: 9 publications 2009: 21 publications 2010: 6 publications 2011: 19 publications 2012: 10 publications 2013: 18 publications 2014: 22 publications 2015: 14 publications 2016: 11 publications 2017: 8 publications 2018: 9 publications 2019: 10 publications 2020: 14 publications 2021: 8 publications 2022: 11 publications 2023: 8 publications 2024: 6 publications 2025: 9 publications
1992 2025

299 publications in total across all disciplines

View publications per year as a table
Marco Antônio Záchia Ayub: publications per year, 1992 to 2025
Year Publications
1992 1
1993 1
1994 0
1995 1
1996 3
1997 4
1998 7
1999 5
2000 9
2001 7
2002 10
2003 6
2004 4
2005 7
2006 9
2007 12
2008 9
2009 21
2010 6
2011 19
2012 10
2013 18
2014 22
2015 14
2016 11
2017 8
2018 9
2019 10
2020 14
2021 8
2022 11
2023 8
2024 6
2025 9
Total 299
Download as CSV

Marco Antônio Záchia Ayub publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Marco Antônio Záchia Ayub sits on this spectrum.

No. of scientists
250 500 750 1,000 1,250
Bar chart with 63 bars. Horizontal axis: publications, 61–80 to 1,295+. Vertical axis: number of scientists, 0 to 1,350. Most scientists, 1,350, have 161–180 publications. The last bar groups every scientist with 1,295 publications or more. The highlighted bar, 221–240 publications, is where this scientist sits. 61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61–80 publications 1,295+

This scientist: 227 publications — 42nd percentile

42% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

View publications distribution as a table
Number of Chemistry scientists by publication count, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
Publications Scientists This scientist
61–80 66
81–100 302
101–120 623
121–140 918
141–160 1,218
161–180 1,350
181–200 1,344
201–220 1,281
221–240 1,216 227
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459
401–420 397
421–440 327
441–460 270
461–480 265
481–500 252
501–520 201
521–540 185
541–560 148
561–580 148
581–600 132
601–620 114
621–640 104
641–660 91
661–680 92
681–700 73
701–720 57
721–740 54
741–760 67
761–780 45
781–800 46
801–820 39
821–840 32
841–860 36
861–880 29
881–900 26
901–920 24
921–940 14
941–960 23
961–980 28
981–1,000 15
1,001–1,020 29
1,021–1,040 12
1,041–1,060 19
1,061–1,080 12
1,081–1,100 6
1,101–1,120 8
1,121–1,140 12
1,141–1,160 5
1,161–1,180 6
1,181–1,200 14
1,201–1,220 7
1,221–1,240 2
1,241–1,260 6
1,261–1,280 4
1,281–1,294 6
1,295+ 100
Download as CSV

Marco Antônio Záchia Ayub D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Marco Antônio Záchia Ayub sits on this spectrum.

No. of scientists
250 500 750 1,000
Bar chart with 61 bars. Horizontal axis: D-Index, 40–41 to 159+. Vertical axis: number of scientists, 0 to 1,051. Most scientists, 1,051, have 56–57 D-Index. The last bar groups every scientist with 159 D-Index or more. The highlighted bar, 54–55 D-Index, is where this scientist sits. 40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40–41 D-Index 159+

This scientist: 54 D-Index — 31st percentile

31% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

View D-Index distribution as a table
Number of Chemistry scientists by D-index, Research.com 2026 ranking edition. Based on 17,934 ranked scientists.
D-Index Scientists This scientist
40–41 289
42–43 612
44–45 808
46–47 776
48–49 835
50–51 861
52–53 872
54–55 933 54
56–57 1,051
58–59 930
60–61 882
62–63 834
64–65 731
66–67 775
68–69 683
70–71 646
72–73 561
74–75 501
76–77 437
78–79 388
80–81 354
82–83 292
84–85 275
86–87 254
88–89 235
90–91 185
92–93 192
94–95 155
96–97 163
98–99 125
100–101 105
102–103 105
104–105 112
106–107 88
108–109 68
110–111 69
112–113 65
114–115 79
116–117 61
118–119 44
120–121 37
122–123 40
124–125 33
126–127 26
128–129 34
130–131 35
132–133 25
134–135 27
136–137 17
138–139 16
140–141 20
142–143 20
144–145 15
146–147 9
148–149 9
150–151 16
152–153 11
154–155 9
156–157 3
158 3
159+ 98
Download as CSV

Overview

Marco Antônio Záchia Ayub is affiliated with the Federal University of Rio Grande do Sul in Brazil. Their research primarily spans the fields of Biochemistry, Genetics and Molecular Biology and Agricultural and Biological Sciences, with a notable focus on subfields such as Molecular Biology, Biomedical Engineering, Food Science, Pathology and Forensic Medicine, and Biotechnology.

Their scholarly work covers key topics including biofuel production and bioconversion, microbial metabolic engineering and bioproduction, enzyme catalysis and immobilization, tea polyphenols and effects, fermentation and sensory analysis, enzyme production and characterization, and microbial metabolites in food biotechnology.

Marco Antônio Záchia Ayub has contributed to several academic journals with frequent publications appearing in:

  • Anais da Academia Brasileira de Ciências
  • Food Bioscience
  • Biotechnology Progress
  • Biomass Conversion and Biorefinery
  • Bioprocess and Biosystems Engineering

Their recent papers include:

  • Health effects and probiotic and prebiotic potential of Kombucha: A bibliometric and systematic review (2021) published in Food Bioscience
  • Transglutaminases: part I-origins, sources, and biotechnological characteristics (2020) published in World Journal of Microbiology and Biotechnology
  • Effect of freeze-dried kombucha culture on microbial composition and assessment of metabolic dynamics during fermentation (2021) published in Food Microbiology
  • Biosynthesis of vitamin B12 by Propionibacterium freudenreichii subsp. shermanii ATCC 13673 using liquid acid protein residue of soybean as culture medium (2020) published in Biotechnology Progress
  • Understanding the effect of fermentation time on physicochemical characteristics, sensory attributes, and volatile compounds in green tea kombucha (2023) published in Food Research International

Collaboration is a notable aspect of their academic activity, with frequent coauthors including:

  • Mariana Fensterseifer Fabricio
  • Lilian Raquel Hickert
  • Carla Roberta Matte
  • Daniele Misturini Rossi
  • Paulo Roberto Dall Cortivo

Best Publications

  • Effect of microencapsulation on survival of Lactobacillus plantarum in simulated gastrointestinal conditions, refrigeration, and yogurt

    Graziela Brusch Brinques;Marco Antônio Záchia Ayub

  • Production of biosurfactant by hydrocarbon degrading Rhodococcus ruber and Rhodococcus erythropolis

    Flávio Correa Bicca;Leonardo Colombo Fleck;Marco Antônio Záchia Ayub

  • Cellulase and xylanase productions by isolated Amazon Bacillus strains using soybean industrial residue based solid-state cultivation

    Júlio Xandro Heck;Plinho Francisco Hertz;Marco Antônio Záchia Ayub

  • Enzymatic reactors for biodiesel synthesis: Present status and future prospects

    Jakeline Kathiele Poppe;Roberto Fernandez-Lafuente;Rafael C. Rodrigues;Marco Antônio Záchia Ayub

  • Enzymatic Synthesis of Biodiesel from Transesterification Reactions of Vegetable Oils and Short Chain Alcohols

    Rafael Costa Rodrigues;Giandra Volpato;Keiko Wada;Marco Antônio Záchia Ayub

  • Effects of the combined use of Thermomyces lanuginosus and Rhizomucor miehei lipases for the transesterification and hydrolysis of soybean oil

    Rafael C. Rodrigues;Marco A. Záchia Ayub

  • Production of ethanol from soybean hull hydrolysate by osmotolerant Candida guilliermondii NRRL Y-2075

    Ângela Cristina Schirmer-Michel;Simone Hickmann Flôres;Plinho Francisco Hertz;Gilvane Souza Matos

  • Immobilization–stabilization of the lipase from Thermomyces lanuginosus: Critical role of chemical amination

    Rafael C. Rodrigues;Rafael C. Rodrigues;Cesar A. Godoy;Giandra Volpato;Giandra Volpato;Marco A.Z. Ayub

  • Rapid and high yields of synthesis of butyl acetate catalyzed by Novozym 435: Reaction optimization by response surface methodology

    Andrea B. Martins;Natalia G. Graebin;André Soibelmann Glock Lorenzoni;Roberto Fernandez-Lafuente

  • Electrospraying microencapsulation of Lactobacillus plantarum enhances cell viability under refrigeration storage and simulated gastric and intestinal fluids

    Chaline Caren Coghetto;Graziela Brusch Brinques;Nataly Machado Siqueira;Jéssica Pletsch

  • High stability of immobilized β-D-galactosidase for lactose hydrolysis and galactooligosaccharides synthesis.

    Manuela P. Klein;Lucas P. Fallavena;Jéssie da N. Schöffer;Marco A.Z. Ayub

  • Immobilization and stabilization of different β-glucosidases using the glutaraldehyde chemistry: Optimal protocol depends on the enzyme

    Diandra de Andrades;Natália G. Graebin;Marina Kimiko Kadowaki;Marco A.Z. Ayub

  • Ultrasound-assisted butyl acetate synthesis catalyzed by Novozym 435: enhanced activity and operational stability.

    Andréa B. Martins;Mirela F. Schein;John L.R. Friedrich;Roberto Fernandez-Lafuente

  • Improved production of butyl butyrate with lipase from Thermomyces lanuginosus immobilized on styrene-divinylbenzene beads

    Andréa B. Martins;John L.R. Friedrich;Jhonnattas C. Cavalheiro;Cristina Garcia-Galan

  • Utilization of protein-hydrolyzed cheese whey for production of β-galactosidase by Kluyveromyces marxianus

    R Rech;C F Cassini;A Secchi;M A Z Ayub

  • The combined use of ultrasound and molecular sieves improves the synthesis of ethyl butyrate catalyzed by immobilized Thermomyces lanuginosus lipase.

    Natalia Paludo;Joana S. Alves;Cintia Altmann;Marco A.Z. Ayub

  • Conversion of sugars present in rice hull hydrolysates into ethanol by Spathaspora arborariae, Saccharomyces cerevisiae, and their co-fermentations

    Fernanda da Cunha-Pereira;Lilian Raquel Hickert;Nicole Teixeira Sehnem;Priscila Brasil de Souza-Cruz

  • Combi-lipase for heterogeneous substrates: a new approach for hydrolysis of soybean oil using mixtures of biocatalysts

    Joana S. Alves;Nathália S. Vieira;Alisson S. Cunha;Alexandre M. Silva

  • Ultrasound technology and molecular sieves improve the thermodynamically controlled esterification of butyric acid mediated by immobilized lipase from Rhizomucor miehei

    Lucas P. Fallavena;Fábio H. F. Antunes;Joana S. Alves;Natalia Paludo

  • Environmentally friendly hide unhairing: enzymatic hide processing for the replacement of sodium sulfide and delimig

    Aline Dettmer;Élita Cavalli;Marco A.Z. Ayub;Mariliz Gutterres

  • Optimization of cellulase-free xylanase activity produced by Bacillus coagulans BL69 in solid-state cultivation

    Júlio Xandro Heck;Simone Hickmann Flôres;Plinho Francisco Hertz;Marco Antônio Záchia Ayub

Frequent Co-Authors

Rafael C. Rodrigues
Rafael C. Rodrigues Federal University of Rio Grande do Sul
Roberto Fernandez-Lafuente
Roberto Fernandez-Lafuente Spanish National Research Council
Simone Hickmann Flôres
Simone Hickmann Flôres Federal University of Rio Grande do Sul
Carlos A. Rosa
Carlos A. Rosa Universidade Federal de Minas Gerais
João Antonio Pêgas Henriques
João Antonio Pêgas Henriques University of Caxias Do Sul
Jose M. Guisan
Jose M. Guisan Spanish National Research Council
Adriano Brandelli
Adriano Brandelli Federal University of Rio Grande do Sul
Cesar Mateo
Cesar Mateo Spanish National Research Council
Jairton Dupont
Jairton Dupont Federal University of Rio Grande do Sul
Maria Fatima Grossi-de-Sa
Maria Fatima Grossi-de-Sa Brazilian Agricultural Research Corporation

If you think any of the details on this page are incorrect, let us know.

Report an issue

We appreciate your kind effort to assist us to improve this page, it would be helpful providing us with as much detail as possible in the text box below:

Related Online Degrees & Career Pathways

Studying Chemistry in the USA opens doors to numerous career paths, many of which require specialized education. For those interested in healthcare, understanding how do you become a pharmacist can be invaluable. Pharmacists rely heavily on chemistry knowledge to prepare and dispense medications safely.

Additionally, careers in forensic science offer exciting opportunities for chemistry graduates. Pursuing a forensic science degree online can help students gain the skills needed to analyze evidence and contribute to criminal investigations.

For those drawn to the legal and medical investigation fields, learning how to become a medical examiner assistant provides insight into supporting autopsies and understanding biological samples, a field closely linked to chemistry principles.

Finally, exploring advanced studies through forensic psychology graduate programs online offers a unique blend of psychology and forensic science, ideal for those interested in the behavioral aspects of criminal cases.

Best Scientists Citing Marco Antônio Záchia Ayub

Trending Scientists

Recently Published Articles