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Sami Sayadi

Sami Sayadi

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Chemistry
Qatar
2026

D-Index & Metrics

Discipline name D-Index World Ranking Current World Ranking National Ranking Current National Ranking Publications Citations
Chemistry 88 2334 2100 3 3 385 23660

Sami Sayadi publications per year

The chart shows the history of publications by Sami Sayadi between 1964 and 2025, highlighting the no. of papers published in each year and offering an overview of the publication velocity of this scholar. Sami Sayadi published across 62 years, from 1964 to 2025, averaging 8.5 papers a year. Output peaked at 31 publications in 2014. 27 of the 525 publications appeared in the last two years.

No. of publications
10 20 30
Bar chart. Horizontal axis: year, 1964 to 2025. Vertical axis: number of publications, 0 to 31. Peak 31 publications in 2014. 1964: 1 publication 1965: 0 publications 1966: 0 publications 1967: 0 publications 1968: 0 publications 1969: 0 publications 1970: 0 publications 1971: 0 publications 1972: 0 publications 1973: 0 publications 1974: 0 publications 1975: 0 publications 1976: 0 publications 1977: 0 publications 1978: 0 publications 1979: 0 publications 1980: 0 publications 1981: 0 publications 1982: 0 publications 1983: 0 publications 1984: 0 publications 1985: 1 publication 1986: 0 publications 1987: 3 publications 1988: 3 publications 1989: 2 publications 1990: 3 publications 1991: 0 publications 1992: 1 publication 1993: 0 publications 1994: 0 publications 1995: 4 publications 1996: 1 publication 1997: 0 publications 1998: 0 publications 1999: 2 publications 2000: 4 publications 2001: 0 publications 2002: 4 publications 2003: 2 publications 2004: 6 publications 2005: 21 publications 2006: 18 publications 2007: 19 publications 2008: 19 publications 2009: 28 publications 2010: 17 publications 2011: 21 publications 2012: 24 publications 2013: 25 publications 2014: 31 publications 2015: 31 publications 2016: 31 publications 2017: 30 publications 2018: 25 publications 2019: 22 publications 2020: 18 publications 2021: 31 publications 2022: 24 publications 2023: 26 publications 2024: 14 publications 2025: 13 publications
1964 2025

525 publications in total across all disciplines

View publications per year as a table
Sami Sayadi: publications per year, 1964 to 2025
Year Publications
1964 1
1965 0
1966 0
1967 0
1968 0
1969 0
1970 0
1971 0
1972 0
1973 0
1974 0
1975 0
1976 0
1977 0
1978 0
1979 0
1980 0
1981 0
1982 0
1983 0
1984 0
1985 1
1986 0
1987 3
1988 3
1989 2
1990 3
1991 0
1992 1
1993 0
1994 0
1995 4
1996 1
1997 0
1998 0
1999 2
2000 4
2001 0
2002 4
2003 2
2004 6
2005 21
2006 18
2007 19
2008 19
2009 28
2010 17
2011 21
2012 24
2013 25
2014 31
2015 31
2016 31
2017 30
2018 25
2019 22
2020 18
2021 31
2022 24
2023 26
2024 14
2025 13
Total 525
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Sami Sayadi 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 Sami Sayadi 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, 381–400 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: 385 publications — 78th percentile

78% 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
241–260 1,100
261–280 979
281–300 939
301–320 764
321–340 643
341–360 628
361–380 522
381–400 459 385
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
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Sami Sayadi 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 Sami Sayadi 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, 88–89 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: 88 D-Index — 88th percentile

88% 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
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 88
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
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Research.com Recognitions

  • 2026 - Research.com Chemistry in Qatar Leader Award
  • 2025 - Research.com Chemistry in Qatar Leader Award
  • 2022 - Research.com Chemistry in Qatar Leader Award

Overview

Sami Sayadi is affiliated with Qatar University in Qatar and has a research focus primarily in environmental science and agricultural and biological sciences. Their work covers a range of topics including pollution, plant science, renewable energy, sustainability, industrial and manufacturing engineering, and molecular biology.

Sayadi's research topics include:

  • Algal biology and biofuel production
  • Microplastics and plastic pollution
  • Anaerobic digestion and biogas production
  • Microbial bioremediation and biosurfactants
  • Recycling and waste management techniques
  • Edible oils quality and analysis
  • Biodegradable polymer synthesis and properties

Their recent published papers reflect a focus on environmental challenges and biotechnology applications in sustainability:

  • Degradation-fragmentation of marine plastic waste and their environmental implications: A critical review (2022), published in Arabian Journal of Chemistry
  • Microalgal-based feed: promising alternative feedstocks for livestock and poultry production (2021), published in Journal of Animal Science and Biotechnology
  • Comparative Study on Beneficial Effects of Hydroxytyrosol- and Oleuropein-Rich Olive Leaf Extracts on High-Fat Diet-Induced Lipid Metabolism Disturbance and Liver Injury in Rats (2020), published in BioMed Research International
  • Smart greenhouses as the path towards precision agriculture in the food-energy and water nexus: case study of Qatar (2022), published in Environment Systems & Decisions
  • Plastic waste impact and biotechnology: Exploring polymer degradation, microbial role, and sustainable development implications (2023), published in Bioresource Technology Reports

Frequent collaborators in their research include Mohamed Chamkha, Fatma Karray, Imen Saadaoui, Mohammad A. Al-Ghouti, and Hareb Al Jabri. These cooperative relationships reflect interdisciplinary work across several environmental and biotechnological fields.

Sayadi's publications are frequently found in the following venues:

  • Biomass Conversion and Biorefinery
  • The Science of The Total Environment
  • Journal of Environmental Management
  • Algal Research
  • Environmental Science and Pollution Research

Their research contributes significantly to subfields such as pollution, plant science, renewable energy, sustainability, industrial and manufacturing engineering, and molecular biology. This broad scope supports an integrated approach to addressing environmental issues and advancing sustainable technologies.

Best Publications

  • Antidiabetic and antioxidant effects of hydroxytyrosol and oleuropein from olive leaves in alloxan-diabetic rats.

    Hedya Jemai;Abdelfattah El Feki;Sami Sayadi

  • Low cost biosorbent "banana peel" for the removal of phenolic compounds from olive mill wastewater: Kinetic and equilibrium studies

    M. Achak;A. Hafidi;N. Ouazzani;S. Sayadi

  • Treatment of olive oil mill wastewater by combined process electro-Fenton reaction and anaerobic digestion

    Sonia Khoufi;Fathi Aloui;Sami Sayadi

  • Laccase purification and characterization from Trametes trogii isolated in Tunisia: decolorization of textile dyes by the purified enzyme

    Héla Zouari-Mechichi;Tahar Mechichi;Abdelhafidh Dhouib;Sami Sayadi

  • Hypolipidimic and antioxidant activities of oleuropein and its hydrolysis derivative-rich extracts from Chemlali olive leaves

    Hedya Jemai;Mohamed Bouaziz;Ines Fki;Abdelfattah El Feki

  • Toward a high yield recovery of antioxidants and purified hydroxytyrosol from olive mill wastewaters.

    Noureddine Allouche;Ines Fki;Sami Sayadi

  • Detrimental effects of high molecular-mass polyphenols on olive mill wastewater biotreatment

    Sami Sayadi;Noureddine Allouche;Mohamed Jaoua;Fathi Aloui

  • Anaerobic membrane reactor with phase separation for the treatment of cheese whey.

    Ahlem Saddoud;Ilem Hassaïri;Sami Sayadi

  • Effect of storage on refined and husk olive oils composition: Stabilization by addition of natural antioxidants from Chemlali olive leaves

    Mohamed Bouaziz;Ines Fki;Hedya Jemai;Mohamed Ayadi

  • Decolourization and detoxification of textile industry wastewater by the laccase-mediator system.

    Rim Khlifi;Lassad Belbahri;Stephen Woodward;Mariem Ellouz

  • Antibacterial activity of Thymus maroccanus and Thymus broussonetii essential oils against nosocomial infection - bacteria and their synergistic potential with antibiotics.

    Mariam Fadli;Asmaa Saad;Sami Sayadi;Jacqueline Chevalier

  • Changes in microbial and soil properties following amendment with treated and untreated olive mill wastewater

    Ali Mekki;Abdelhafidh Dhouib;Sami Sayadi

  • Roles of Lignin Peroxidase and Manganese Peroxidase from Phanerochaete chrysosporium in the Decolorization of Olive Mill Wastewaters.

    Sami Sayadi;Radhouane Ellouz

  • Isolation and evaluation of antioxidants from leaves of a tunisian cultivar olive tree

    Mohamed Bouaziz;Sami Sayadi

  • The use of polyphenolic extract, purified hydroxytyrosol and 3,4-dihydroxyphenyl acetic acid from olive mill wastewater for the stabilization of refined oils: a potential alternative to synthetic antioxidants

    Ines Fki;Noureddine Allouche;Sami Sayadi

  • Polyphenols dynamics and phytotoxicity in a soil amended by olive mill wastewaters

    Ali Mekki;Abdelhafidh Dhouib;Sami Sayadi

  • Photocatalytic activity of ZnO doped with Ag on the degradation of endocrine disrupting under UV irradiation and the investigation of its antibacterial activity

    Olfa Bechambi;Manel Chalbi;Wahiba Najjar;Sami Sayadi

  • Hydroxytyrosol rich extract from olive leaves modulates cell cycle progression in MCF-7 human breast cancer cells.

    Zouhaier Bouallagui;Junkuy Han;Hiroko Isoda;Sami Sayadi

  • Photocatalytic degradation of bisphenol A in the presence of C-doped ZnO: Effect of operational parameters and photodegradation mechanism

    Olfa Bechambi;Sami Sayadi;Wahiba Najjar

  • Detoxification of olive mill wastewater by electrocoagulation and sedimentation processes.

    Sonia Khoufi;Firas Feki;Sami Sayadi

  • Identification and antioxidant potential of flavonoids and low molecular weight phenols in olive cultivar chemlali growing in Tunisia.

    Mohamed Bouaziz;Renee J Grayer;Monique S J Simmonds;Mohamed Damak

Frequent Co-Authors

Mohamed Bouaziz
Mohamed Bouaziz University of Sfax
Mitsutoshi Nakajima
Mitsutoshi Nakajima University of Tsukuba
Daniel Thomas
Daniel Thomas University of Rennes
María Jesús Martínez
María Jesús Martínez Spanish National Research Council
Moktar Hamdi
Moktar Hamdi University of Carthage
Nidal Hilal
Nidal Hilal New York University Abu Dhabi
Irina Smirnova
Irina Smirnova Hamburg University of Technology
Alain Saliot
Alain Saliot Centre national de la recherche scientifique, CNRS
Yasukazu Nakamura
Yasukazu Nakamura National Institute of Genetics
Enrico Drioli
Enrico Drioli National Research Council (CNR)

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