Ruengwit Sawangkeaw

@chula.ac.th

The Institute of Biotechnology and Genetic Engineering
Chulalongkorn University

Ruengwit Sawangkeaw


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https://researchid.co/rueangwit.s
52

Scopus Publications

1746

Scholar Citations

20

Scholar h-index

31

Scholar i10-index

Scopus Publications

RECENT SCHOLAR PUBLICATIONS

  • Valorization of tropical fruit seed wastes for biodiesel production: A review of extraction technologies, catalytic systems, and biorefinery perspectives
    M Kamjam, S Ngamprasertsith, W Supang, R Sawangkeaw
    Biomass and Bioenergy 212, 109243 , 2026
    2026
    Citations: 1
  • Biodiesel production from spent coffee grounds via ethanolic extraction and supercritical ethanol transesterification: technoeconomic analysis and life cycle assessment
    W Supang, S Ngamprasertsith, P Nimmanterdwong, W Sakdasri, ...
    Energy Systems, 1-18 , 2026
    2026
  • Valorization of Rambutan Seed Waste into Biodiesel via Non-Catalytic Supercritical Ethanol and Ethyl Acetate
    M Kamjam, D Wongsawaeng, R Sawangkeaw, W Supang, P Hosemann, ...
    Energies 18 (22), 6004 , 2025
    2025
    Citations: 3
  • Technoeconomic analysis of biofuel production from spent coffee grounds using supercritical ethyl acetate
    W Supang, S Ngamprasertsith, W Sakdasri, R Sawangkeaw
    The Journal of Supercritical Fluids, 106834 , 2025
    2025
    Citations: 2
  • Simultaneous extraction of crude polysaccharides, soluble proteins, gingerols, and shogaols from dried ginger by subcritical water extraction
    W Sakdasri, S Kaomaneechot, S Lasim, P Somboon, N Chotigavin, ...
    Lwt 225, 117912 , 2025
    2025
    Citations: 6
  • Life cycle assessment of spray-drying encapsulation of crude peptides produced from defective green coffee beans
    P Hunsub, S Ngamprasertsith, N Prichapan, W Sakdasri, A Karnchanatat, ...
    Clean Technologies and Environmental Policy 27 (3), 1535-1550 , 2025
    2025
    Citations: 6
  • Effects of temperature and pressure on volatile compounds of black cumin seeds ( Nigella sativa L.) oil extracted by supercritical carbon dioxide
    W Sakdasri, B Sakulkittiyut, S Ngamprasertsith, W Supang, ...
    Journal of the American Oil Chemists' Society 102 (1), 61-69 , 2025
    2025
    Citations: 4
  • Biodiesel production from spent coffee grounds by using ethanolic extraction and supercritical transesterification
    W Supang, S Ngamprasertsith, W Sakdasri, R Sawangkeaw
    BioEnergy Research 17 (4), 2429-2439 , 2024
    2024
    Citations: 16
  • The Great Versatility of Supercritical Fluids in Industrial Processes: A Focus on Chemical, Agri-Food and Energy Applications
    M Kamjam, S Ngamprasertsith, R Sawangkeaw, M Charoenchaitrakool, ...
    Processes 12 (11), 2402 , 2024
    2024
    Citations: 19
  • Effects of defatting pretreatment on polysaccharide extraction from rambutan seeds using subcritical water: Optimization using the desirability approach
    K Nilmat, P Hunsub, S Ngamprasertsith, W Sakdasri, A Karnchanatat, ...
    Foods 13 (13), 1967 , 2024
    2024
    Citations: 13
  • Sequential process to valorization of rambutan seed waste by supercritical CO2-ethanol and subcritical water extractions
    K Nilmat, S Ngamprasertsith, W Sakdasri, A Karnchanatat, ...
    Chemical Engineering Transactions 109, 313-318 , 2024
    2024
    Citations: 7
  • Lemon basil seed-derived peptide: Hydrolysis, purification, and its role as a pancreatic lipase inhibitor that reduces adipogenesis by downregulating SREBP-1c and PPAR-γ in 3T3 …
    K Kuptawach, S Noitung, A Buakeaw, S Puthong, R Sawangkeaw, ...
    Plos one 19 (5), e0301966 , 2024
    2024
    Citations: 12
  • Production of coffee oil and bioactive peptides from spent coffee grounds via supercritical carbon dioxide extraction and enzymatic hydrolysis
    P Hunsub, K Ponmana, S Ngamprasertsith, W Sakdasri, A Karnchanatat, ...
    Waste and Biomass Valorization 15 (4), 2061-2070 , 2024
    2024
    Citations: 7
  • Polysaccharide extraction from defatted rambutan seeds with hot water and subcritical water extractions
    K Nilmat, S Ngamprasertsith, W Sakdasri, P Jirukkalul, A Karnchanatat, ...
    Biology and Life Sciences Forum 26 (1), 75 , 2023
    2023
    Citations: 5
  • Production of Protein Hydrolysates from Spent Coffee Grounds via Microwave, Enzymatic, and Subcritical Water Extractions and Their Combination
    P Hunsub, S Ngamprasertsith, N Prichapan, W Sakdasri, A Karnchanatat, ...
    Biology and Life Sciences Forum 26 (1), 43 , 2023
    2023
    Citations: 3
  • Optimization of coffee oil extraction from defective beans using a supercritical carbon dioxide technique: Its effect on volatile aroma components
    W Pattaraprachyakul, R Sawangkeaw, S Ngamprasertsith, ...
    Foods 12 (13), 2515 , 2023
    2023
    Citations: 14
  • Ethanol as Extracting and Reacting Solvents for Biodiesel Production from Spent Coffee Grounds in Supercritical Condition
    W SUPANG, N CHAROENDEE, S NGAMPRASERTSITH, W SAKDASRI, ...
    旭硝子財団助成研究成果報告= Reports of research assisted by the Asahi Glass … , 2023
    2023
  • Optimization of yield and thymoquinone content of screw press-extracted black cumin seed oil using response surface methodology
    W Sakdasri, P Sila-Ngam, S Chummengyen, A Sukruay, ...
    Industrial Crops and Products 191, 115901 , 2023
    2023
    Citations: 17
  • Pressurized hot water extraction of crude polysaccharides, β-glucan, and phenolic compounds from dried gray oyster mushroom
    W Sakdasri, P Arnutpongchai, S Phonsavat, E Bumrungthaichaichan, ...
    Lwt 168, 113895 , 2022
    2022
    Citations: 44
  • Ethyl acetate as extracting solvent and reactant for producing biodiesel from spent coffee grounds: A catalyst-and glycerol-free process
    W Supang, S Ngamprasertsith, W Sakdasri, R Sawangkeaw
    The Journal of Supercritical Fluids 186, 105586 , 2022
    2022
    Citations: 30

MOST CITED SCHOLAR PUBLICATIONS

  • Continuous production of biodiesel via transesterification from vegetable oils in supercritical methanol
    K Bunyakiat, S Makmee, R Sawangkeaw, S Ngamprasertsith
    Energy & Fuels 20 (2), 812-817 , 2006
    2006
    Citations: 394
  • A review of lipid-based biomasses as feedstocks for biofuels production
    R Sawangkeaw, S Ngamprasertsith
    Renewable and Sustainable Energy Reviews 25, 97-108 , 2013
    2013
    Citations: 209
  • A review of laboratory-scale research on lipid conversion to biodiesel with supercritical methanol (2001–2009)
    R Sawangkeaw, K Bunyakiat, S Ngamprasertsith
    The Journal of Supercritical Fluids 55 (1), 1-13 , 2010
    2010
    Citations: 184
  • Techno-economic analysis of biodiesel production from palm oil with supercritical methanol at a low molar ratio
    W Sakdasri, R Sawangkeaw, S Ngamprasertsith
    Energy 152, 144-153 , 2018
    2018
    Citations: 82
  • Effect of co-solvents on production of biodiesel via transesterification in supercritical methanol
    R Sawangkeaw, K Bunyakiat, S Ngamprasertsith
    Green Chemistry 9 (6), 679-685 , 2007
    2007
    Citations: 76
  • Biofuel production from palm oil with supercritical alcohols: Effects of the alcohol to oil molar ratios on the biofuel chemical composition and properties
    R Sawangkeaw, S Teeravitud, K Bunyakiat, S Ngamprasertsith
    Bioresource technology 102 (22), 10704-10710 , 2011
    2011
    Citations: 73
  • Pressurized hot water extraction of crude polysaccharides, β-glucan, and phenolic compounds from dried gray oyster mushroom
    W Sakdasri, P Arnutpongchai, S Phonsavat, E Bumrungthaichaichan, ...
    Lwt 168, 113895 , 2022
    2022
    Citations: 44
  • Statistical optimization of biodiesel production from para rubber seed oil by SO3H-MCM-41 catalyst
    C Samart, S Karnjanakom, C Chaiya, P Reubroycharoen, R Sawangkeaw, ...
    Arabian Journal of Chemistry 12 (8), 2028-2036 , 2019
    2019
    Citations: 43
  • Continuous production of biodiesel with supercritical methanol: Optimization of a scale-up plug flow reactor by response surface methodology
    R Sawangkeaw, K Bunyakiat, S Ngamprasertsith
    Fuel processing technology 92 (12), 2285-2292 , 2011
    2011
    Citations: 43
  • Supercritical Transesterification of Palm Oil and Hydrated Ethanol in a Fixed Bed Reactor with a CaO/Al 2 O 3 Catalyst
    R Sawangkeaw, P Tejvirat, C Ngamcharassrivichai, S Ngamprasertsith
    Energies 5 (4), 1062-1080 , 2012
    2012
    Citations: 39
  • Continuous production of palm biofuel under supercritical ethyl acetate
    C Komintarachat, R Sawangkeaw, S Ngamprasertsith
    Energy Conversion and Management 93, 332-338 , 2015
    2015
    Citations: 37
  • Continuous production of biofuel from refined and used palm olein oil with supercritical methanol at a low molar ratio
    W Sakdasri, R Sawangkeaw, S Ngamprasertsith
    Energy conversion and management 103, 934-942 , 2015
    2015
    Citations: 34
  • Transesterification in supercritical conditions
    S Ngamprasertsith, R Sawangkeaw
    Biodiesel-Feedstocks and Processing Technologies. Rijeka: InTech, p247-268 , 2011
    2011
    Citations: 33
  • Integrated process for the production of fermentable sugar and methane from rubber wood
    B Charnnok, R Sawangkeaw, S Chaiprapat
    Bioresource technology 302, 122785 , 2020
    2020
    Citations: 32
  • Biofuel production from crude palm oil with supercritical alcohols: Comparative LCA studies
    R Sawangkeaw, S Teeravitud, P Piumsomboon, S Ngamprasertsith
    Bioresource technology 120, 6-12 , 2012
    2012
    Citations: 32
  • Ethyl acetate as extracting solvent and reactant for producing biodiesel from spent coffee grounds: A catalyst-and glycerol-free process
    W Supang, S Ngamprasertsith, W Sakdasri, R Sawangkeaw
    The Journal of Supercritical Fluids 186, 105586 , 2022
    2022
    Citations: 30
  • Lipid-based biofuel synthesized from palm-olein oil by supercritical ethyl acetate in fixed-bed reactor
    W Sakdasri, S Ngamprasertsith, S Daengsanun, R Sawangkeaw
    Energy Conversion and Management 182, 215-223 , 2019
    2019
    Citations: 28
  • Supercritical reaction between methanol and glycerol: the effects of reaction products on biodiesel properties
    W Sakdasri, S Ngamprasertsith, P Saengsuk, R Sawangkeaw
    Energy Conversion and Management: X 12, 100145 , 2021
    2021
    Citations: 26
  • Caryophyllene oxide extraction from lemon basil (Ocimum citriodorum Vis.) straw by hydrodistillation and supercritical CO2
    S Ngamprasertsith, J Menwa, R Sawangkeaw
    The Journal of Supercritical Fluids 138, 1-6 , 2018
    2018
    Citations: 23
  • An entirely renewable biofuel production from used palm oil with supercritical ethanol at low molar ratio
    W Sakdasri, R Sawangkeaw, S Ngamprasertsith
    Brazilian Journal of Chemical Engineering 34 (4), 1023-1034 , 2017
    2017
    Citations: 23