World's Best Scientists 2026 revealed!
Sami Sayadi

Sami Sayadi

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Chemistry
Qatar
2026

D-Index & Metrics

Chemistry

D-Index
88
Citations
23660
World Ranking
2334
National Ranking
3

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.

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 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.

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.

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 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.

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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