faculty & staff


Email: mcdelbarrio@up.edu.ph
Room: CEAT Building

Marilyn C. del Barrio is currently an Assistant Professor of the Department of Chemical Engineering in UP Los Banos. She has worked as supervisor (production and quality assurance) in the manufacturing industry for 8 years before entering the academe in 2004. Prof. del Barrio received both her BS and MS degrees in Chemical Engineering from UP Los Banos in 1996 and 2008, respectively. She is presently teaching undergraduate and graduate courses in the university. Her research interests mostly centers on the application of engineering concepts in microorganisms like microbial cell production, cell immobilization and enzyme production (rennet, bacteriocins) in partnership with BIOTECH. She has also been part of other studies which focused on the use of photocatalysis for treating wastewaters.

Research Interests: Food Science/Engineering, Wastewater Treatment, Fermentation 

Google scholar link: https://scholar.google.com/citations?user=gvs_yXUAAAAJ&hl=en&oi=ao

Academic History

BS Chemical Engineering, University of the Philippines Los Baños, 1996

MS Chemical Engineering, Minor in Environmental Science, University of the Philippines Los Baños, 2008

PhD Chemical Engineering University of the Philippines Diliman (ongoing)

selected publications

del Barrio MC., Demafelis RB., Mercado SM., Movillon, JL. and Rebancos, CM. 2012. Growth kinetics of Rhizopus chinensis Saito BIOTECH 3273 in the production of microbial rennet using coconut paring cake as substrate. Phillip Agric Scientist 95(2):129 – 138.


Mercado, SM., del Barrio MC. and Violanta. 2011. Technology refinement and commercialization of the PCIERRD-BIOTECH technology on microbial rennet.  http://agris.fao.org/agris-search/search.do?recordID=PH2012000275.


Revellame ED., Demafelis RB., del Barrio MC. And Dalawampu RDD. 2007. Numerical simulation and performance evaluation of a direct – contact induced draft cooling tower under varying ambient conditions. Philippine Institute of Chemical Engineers Journal Vol. 10 No. 1.

Courses Taught

ChE 10 Introduction to Chemical Engineering Profession

ChE 32 Industrial Stoichiometry

ChE 41 Chemical Process Industries

ChE 145 Chemical Reaction Engineering

ChE 153 Transfer Operations I

ChE 154 Transfer Operations II

ChE 242 Advanced Chemical Engineering Thermodynamics

ChE 245 Advanced Chemical Reaction Engineering

ChE 284 Solid Waste Management

ChE 288 Hazardous Waste Management