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Quilantang, Norman G.

Full Instructor

ngquilantang@usc.edu.ph

Degrees

B.S. Biology, University of San Carlos, 2016
M.S. Plant Science, Chung-Ang University (South Korea), 2018

Research interests:

Phytochemistry, drug discovery and development, cell biology

List of publications:

  1. Acosta, O.B.; Ramos, R.; Padayao, F.R.P.; Consuegra, C.R.; Quilantang, N.; Sanchez, R.M.T.; Padayao, M.H.R.; Arakawa, K.; Yee, J.. Sponge-Derived Streptomyces variabilis Extract Modulates Host Immune Gene Expression and Improves Survival in Caenorhabditis elegans During Vibrio parahaemolyticus Infection. Current Microbiology. 2026, https://doi.org/10.1007/s00284-026-04872-8.
  2. Padayao, F.R.P.A.; Acosta, O.B.L.; Ramos, R.I.; Sanchez, R.M.T.S.; Padayao, M.H.R.A.; Yee, J.C.; Arakawa, K.; Quilantang, N.G.. Bioactivity screening and chemical profiling of Halymenia durvillei fermented by indigenous seaweed-associated Bacillus species. Microbe Netherlands. 2025, https://doi.org/10.1016/j.microb.2025.100491.
  3. Uy, N.P.; Quilantang, N.G.; Kim, H.; Moon, S.K.; Lee, S.. Assessment of biological activity in vitro and phytochemical constituents from Rosa hybrida leaves. Journal of Applied Biological Chemistry. 2024, https://doi.org/10.3839/jabc.2024.044.
  4. Padayao, M.H.R.; Padayao, F.R.P.; Patalinghug, J.M.; Raña, G.S.; Yee, J.; Geraldino, P.J.; Quilantang, N.. Antimicrobial and quorum sensing inhibitory activity of epiphytic bacteria isolated from the red alga Halymenia durvillei. Access Microbiology. 2023, https://doi.org/10.1099/acmi.0.000563.v4.
  5. Lee, D.G.; Lee, J.S.; Quilantang, N.G.; Jacinto, S.D.; Lee, S.. Determination of Afzelin and Astragalin from Lespedeza cuneata on Aldose Reductase Inhibition. Journal of Chromatographic Science. 2021, https://doi.org/10.1093/chromsci/bmaa127.
  6. Lee, J.S.; Quilantang, N.G.; Hahm, D.H.; Kang, K.S.; Jacinto, S.D.; Choi, Y.J.; Lee, S.C.; Lee, S.. Optimization of extraction conditions of continentalic and kaurenoic acids from aralia continentalis by HPLC/UV and their validation. Journal of Chromatographic Science. 2020, https://doi.org/10.1093/chromsci/bmaa019.
  7. Quilantang, N.G.; Choi, K.; Lee, B.H.; Lee, S.. Kaempferol rhamnosides from geranium sibiricum as aldose reductase inhibitors and their content by HPLC analysis. Processes. 2020, https://doi.org/10.3390/PR8060694.
  8. Quilantang, N.G.; Limbo, C.A.; Lee, J.S.; Jacinto, S.D.; Moon, S.K.; Lee, S.. Aldose reductase inhibition of Rosa hybrida petals and its active component, kaempferol. Horticulture Environment and Biotechnology. 2020, https://doi.org/10.1007/s13580-020-00232-y.
  9. Lee, J.S.; Lee, A.Y.; Quilantang, N.G.; Geraldino, P.J.L.; Cho, E.J.; Lee, S.. Anti-oxidant activity of avicularin and isovitexin from Lespedeza cuneata. Journal of Applied Biological Chemistry. 2019, https://doi.org/10.3839/jabc.2019.020.
  10. Kim, J.H.; Quilantang, N.G.; Kim, H.Y.; Lee, S.; Cho, E.J.. Attenuation of hydrogen peroxide-induced oxidative stress in SH-SY5Y cells by three flavonoids from Acer okamotoanum. Chemical Papers. 2019, https://doi.org/10.1007/s11696-018-0664-7.
  11. Quilantang, N.G.; Ryu, S.H.; Park, S.H.; Byun, J.S.; Chun, J.S.; Lee, J.S.; Rodriguez, J.P.; Yun, Y.S.; Jacinto, S.D.; Lee, S.. Inhibitory activity of methanol extracts from different colored flowers on aldose reductase and HPLC-UV analysis of quercetin. Horticulture Environment and Biotechnology. 2018, https://doi.org/10.1007/s13580-018-0072-5.
  12. Rodriguez, J.P.; Quilantang, N.G.; Lee, J.S.; Park, J.Y.; Shim, J.S.; Kang, K.S.; Cho, E.J.; Geraldino, P.J.L.; Lee, S.. Simultaneous determination of methoxyflavones in selected Korean thistles. Journal of Applied Biological Chemistry. 2018, https://doi.org/10.3839/jabc.2018.033.
  13. Cho, S.; Quilantang, N.G.; Lee, J.S.; Kim, Y.M.; Kim, H.B.; Cho, E.J.; Jung, Y.S.; Lee, S.. Content analysis of rutin in the leaves of Boehmeria nivea harvested in different regions of South Korea by HPLC-UV. Natural Product Sciences. 2018, https://doi.org/10.20307/nps.2018.24.1.36.
  14. Lee, J.S.; Quilantang, N.G.; Nam, K.W.; Piao, X.L.; Chung, M.J.; Lee, S.. Optimization of extraction conditions and quantitative analysis of isoquercitrin and caffeic acid from aster scaber. Natural Product Sciences. 2018, https://doi.org/10.20307/nps.2018.24.3.199.
  15. Quilantang, N.G.; Lee, J.S.; Ryu, S.H.; Park, S.H.; Byun, J.S.; Chun, J.S.; Jacinto, S.D.; Lee, S.. Inhibitory effects of synurus excelsus and weigela subsessilis on aldose reductase and HPLC-UV analysis of scopolin, scopoletin, and quercetin. Journal of Applied Biological Chemistry. 2018, https://doi.org/10.3839/jabc.2018.020.
  16. Rodriguez, J.P.; Quilantang, N.G.; Lee, J.S.; Lee, J.M.; Kim, H.Y.; Shim, J.S.; Lee, S.. Determination of silybin B in the different parts of silybum marianum using HPLC-UV. Natural Product Sciences. 2018, https://doi.org/10.20307/nps.2018.24.2.82.
  17. Lee, D.G.; Quilantang, N.G.; Lee, J.S.; Geraldino, P.J.L.; Kim, H.Y.; Lee, S.. Quantitative analysis of dammarane-type ginsenosides in different ginseng products. Natural Product Sciences. 2018, https://doi.org/10.20307/NPS.2018.24.4.229.
  18. Choi, S.Y.; Kim, J.H.; Quilantang, N.G.; Lee, S.; Cho, E.J.. Acer okamotoanum inhibit the hydrogen peroxide-induced oxidative stress in c6 glial cells. Natural Product Sciences. 2018, https://doi.org/10.20307/nps.2018.24.3.148.
  19. Lee, J.; Rodriguez, J.P.; Quilantang, N.G.; Lee, M.H.; Cho, E.J.; Jacinto, S.D.; Lee, S.. Determination of flavonoids from Perilla frutescens var. japonica seeds and their inhibitory effect on aldose reductase. Applied Biological Chemistry. 2017, https://doi.org/10.1007/s13765-017-0260-5.
  20. Quilantang, N.G.; Lee, K.H.; Lee, D.G.; Lee, J.S.; Cho, E.J.; Kim, H.Y.; Lee, S.. Quantitative determination of bakkenolide D in Petasites japonicus and Farfugium japonicum by HPLC/UV. Natural Product Sciences. 2017, https://doi.org/10.20307/nps.2017.23.4.270.

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