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Agapay RC

Agapay, Ramelito C.

Assistant Dean
School of Engineering
Full Professor

rcagapay@usc.edu.ph

Degrees

B.S. Chemical Engineering, University of San Carlos, 1994
M.S. Environmental Science and Technology, UNESCO-IHE Delft, 1998
Ph.D. Chemical Engineering, National Taiwan University of Science and Technology, 2020

Research Interests:

Hydrolytic enzymes, biogas technology, biodiesel production technology

List of publications:

  1. Dadol, G.C.; Tijing, L.D.; Agapay, R.C.; Lobarbio, C.F.Y.; Tan, N.P.B.. Solution blow-spun polyacrylonitrile–polyamide thin-film nanofibrous composite membrane for the removal of fermentation inhibitors. Nanocomposites. 2024, https://doi.org/10.1080/20550324.2024.2399978.
  2. Agapay, R.C.; Go, A.W.; Ju, Y.H.; Gunarto, C.; Quijote, K.L.; Angkawijaya, A.E.; Santoso, S.P.. Solvent-free synthesis of partial glycerides and structured triglycerides from soybean oil deodorizer distillate: bottom-up approach. Biomass Conversion and Biorefinery. 2023, https://doi.org/10.1007/s13399-021-02072-x.
  3. Go, A.W.; Quijote, K.L.; Agapay, R.C.; Ju, Y.H.; Angkawijaya, A.E.; Santoso, S.P.. Biodiesel from rice bran lipids: resource assessment and technological review. Biomass Conversion and Biorefinery. 2023, https://doi.org/10.1007/s13399-021-01371-7.
  4. Vo, H.N.; Go, A.W.; Gunarto, C.; Agapay, R.C.; Quijote, K.L.; Angkawijaya, A.E.; Santoso, S.P.; Alivio, R.K.O.. Removal of pararosaniline hydrochloride (basic red 9) from aqueous system with lignocellulose fraction of sugarcane bagasse as adsorbent. Industrial Crops and Products. 2022, https://doi.org/10.1016/j.indcrop.2022.115573.
  5. Xiong, Y.W.; Go, A.W.; Alivio, R.K.O.; Santoso, S.P.; Angkawijaya, A.E.; Soetaredjo, F.E.; Agapay, R.C.. Non-isothermal (trans)esterification of linoleic acid and soybean oil deodorizer distillate with methanol under subcritical conditions. Renewable Energy. 2022, https://doi.org/10.1016/j.renene.2022.07.104.
  6. Go, A.W.; Agapay, R.C.; Ju, Y.H.; Conag, A.T.; Toledo, A.S.; Angkawijaya, A.E.; Tran Nguyen, P.L.. The capacity of major countries in Southeast Asia in meeting biodiesel mandates and pursue higher blends based on available major feedstocks. Biofuels. 2022, https://doi.org/10.1080/17597269.2020.1824474.
  7. Go, A.W.; Quijote, K.L.; Gunarto, C.; Ju, Y.H.; Angkawijaya, A.E.; Santoso, S.P.; Agapay, R.C.. In-situ (trans)esterification of lipid-dense post-hydrolysis rice bran at ambient pressures with low acid loading. Biomass and Bioenergy. 2021, https://doi.org/10.1016/j.biombioe.2021.106300.
  8. Agapay, R.C.; Liu, H.C.; Ju, Y.H.; Go, A.W.; Angkawijaya, A.E.; Nguyen, P.L.T.; Truong, C.T.; Quijote, K.L.. Synthesis and Initial Evaluation of Solid Acid Catalyst Derived from Spent Coffee Grounds for the Esterification of Oleic Acid and Methanol. Waste and Biomass Valorization. 2021, https://doi.org/10.1007/s12649-020-01325-6.
  9. Quijote, K.L.; Go, A.W.; Agapay, R.C.; Ju, Y.H.; Angkawijaya, A.E.; Santoso, S.P.. Lipid-dense and pre-functionalized post-hydrolysis spent coffee grounds as raw material for the production of fatty acid methyl ester. Energy Conversion and Management. 2021, https://doi.org/10.1016/j.enconman.2021.114216.
  10. Agapay, R.C.; Ju, Y.H.; Tran-Nguyen, P.L.; Angkawijaya, A.E.; Santoso, S.P.; Go, A.W.. Synthesizing Precursors for Functional Food Structured Lipids from Soybean Oil Deodorized Distillates. Waste and Biomass Valorization. 2021, https://doi.org/10.1007/s12649-020-01284-y.
  11. Agapay, R.C.; Ju, Y.H.; Tran-Nguyen, P.L.; Ismadji, S.; Angkawijaya, A.E.; Go, A.W.. Process evaluation of solvent-free lipase-catalyzed esterification schemes in the synthesis of structured triglycerides from oleic and palmitic acids. Asia Pacific Journal of Chemical Engineering. 2021, https://doi.org/10.1002/apj.2606.
  12. Go, A.W.; Pham, T.Y.N.; Truong, C.T.; Quijote, K.L.; Angkawijaya, A.E.; Agapay, R.C.; Gunarto, C.; Ju, Y.H.; Santoso, S.P.. Improved solvent economy and rate of rice bran lipid extraction using hydrolyzed rice bran with hexane as solvent. Biomass and Bioenergy. 2020, https://doi.org/10.1016/j.biombioe.2020.105773.
  13. Go, A.W.; Pham, T.Y.N.; Ju, Y.H.; Agapay, R.C.; Angkawijaya, A.E.; Quijote, K.L.. Extraction of lipids from post-hydrolysis spent coffee grounds for biodiesel production with hexane as solvent: Kinetic and equilibrium data. Biomass and Bioenergy. 2020, https://doi.org/10.1016/j.biombioe.2020.105704.
  14. Go, A.W.; Agapay, R.C.; Ju, Y.H.; Conag, A.T.. Unified Semi-Empirical Models for Predicting or Estimating the Heating Value of Coal and Related Properties–Theoretical Basis and Thermochemical Implications. Combustion Science and Technology. 2020, https://doi.org/10.1080/00102202.2019.1617705.
  15. Ju, Y.H.; Sari, N.N.F.; Go, A.W.; Wang, M.J.; Agapay, R.C.; Ayucitra, A.. Preparation of Epoxidized Fatty Acid Ethyl Ester from Tung Oil as a Bio-lubricant Base-Stock. Waste and Biomass Valorization. 2020, https://doi.org/10.1007/s12649-019-00749-z.
  16. Ting, R.R.; Agapay, R.; Angkawijaya, A.E.; Tran Nguyen, P.L.; Truong, C.T.; Ju, Y.H.. Diglyceride production via noncatalyzed esterification of glycerol and oleic acid. Asia Pacific Journal of Chemical Engineering. 2019, https://doi.org/10.1002/apj.2383.
  17. Bureros, G.M.A.; Tanjay, A.A.; Cuizon, D.E.S.; Go, A.W.; Cabatingan, L.K.; Agapay, R.C.; Ju, Y.H.. Cacao shell-derived solid acid catalyst for esterification of oleic acid with methanol. Renewable Energy. 2019, https://doi.org/10.1016/j.renene.2019.01.082.
  18. Flores, K.P.; Omega, J.L.O.; Cabatingan, L.K.; Go, A.W.; Agapay, R.C.; Ju, Y.H.. Simultaneously carbonized and sulfonated sugarcane bagasse as solid acid catalyst for the esterification of oleic acid with methanol. Renewable Energy. 2019, https://doi.org/10.1016/j.renene.2018.06.093.
  19. Cabije, A.H.; Agapay, R.C.; Tampus, M.V.. Carbon-nitrogen-phosphorus removal and biofilm growth characteristics in an integrated wastewater treatment system involving a rotating biological contactor. Asia Pacific Journal of Chemical Engineering. 2009, https://doi.org/10.1002/apj.329.
  20. Agapay, R.C.; Savvides, S.N.; Van Driessche, G.; Devreese, B.; Van Beeumen, J.; Jongejan, J.A.; Hagen, W.R.. Expression, purification, crystallization and preliminary crystallographic analysis of a stand-alone RAM domain with hydrolytic activity from the hyperthermophile Pyrococcus furiosus. Acta Crystallographica Section F Structural Biology and Crystallization Communications. 2005, https://doi.org/10.1107/S1744309105028393.
  21. Cabatingan, L.K.; Agapay, R.C.; Rakels, J.L.L.; Ottens, M.; Van der Wielen, L.A.M.. Potential of biosorption for the recovery of chromate in industrial wastewaters. Industrial and Engineering Chemistry Research. 2001, https://doi.org/10.1021/ie0008575.

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