• About
    • About DLSU
      • Facts and Figures
      • Vision-Mission
      • Lasallian Guiding Principles
      • History and Traditions
      • University Governance
      • Code of Ethics
    • Our Core Values
    • Quality@DLSU
    • DLSU President
    • DLSU Administration
    • DLSU Fellows
    • DLSU Emeriti
    • De La Salle Brothers
    • Lasallian Mission
    • Staff
      • Staff Directory
      • Jobs@DLSU
    • Offices
    • Alumni
    • Board of Advisors
  • Admissions
    • Scholarships
    • Undergraduate
    • Graduate
    • Integrated School
      • Grade School
      • Junior High School
      • Senior High School
  • Academics
    • Colleges
      • Brother Andrew Gonzalez FSC College of Education
        • Counseling and Educational Psychology
        • Educational Leadership and Management
        • English and Applied Linguistics
        • Physical Education
        • Science Education
      • College of Computer Studies
        • Computer Technology
        • Information Technology
        • Software Technology
      • Tañada-Diokno School of Law
      • College of Liberal Arts
        • Behavioral Sciences
        • Communication
        • Filipino
        • History
        • International Studies
        • Literature
        • Philosophy
        • Political Science
        • Psychology
        • Theology and Religious Education
      • College of Science
        • Biology
        • Chemistry
        • Mathematics and Statistics
        • Physics
      • Gokongwei College of Engineering
        • Chemical Engineering
        • Civil Engineering
        • Electronics and Communications Engineering
        • Industrial Engineering
        • Manufacturing Engineering and Management
        • Mechanical Engineering
      • Ramon V. del Rosario College of Business
        • Accountancy
        • Commercial Law
        • Decision Sciences and Innovation
        • Management of Financial Institutions
        • Management and Organization Department
        • Marketing Management
      • Carlos L. Tiu School of Economics
    • Campuses
      • Manila
      • Laguna
      • Makati
      • Rufino (BGC)
    • Undergraduate
      • Degree Programs
      • Student Handbook
        • Amendments
      • Undergraduate Viewbook
      • Laguna Campus Viewbook
    • Graduate
      • Degree Programs
      • Student Handbook
        • Amendments
      • Graduate Studies Viewbook
        • Brother Andrew Gonzales F.S.C. College of Education
        • College of Computer Studies
        • College of Liberal Arts
        • College of Science
        • Gokongwei College of Engineering
        • Ramon V. del Rosario College of Business
    • Integrated School
      • SHS Research Congress
      • Student Handbook
    • School of Lifelong Learning
    • Academic Calendar
    • Faculty
    • University Registrar
    • Enrollment Services Hub
      • Document Tracking
      • Request for Documents
      • CAV CHED requests
  • Research
    • Conferences
    • Abstracts
    • Centers (1)
      • Advanced Research Institute for Informatics, Computing and Networking (AdRIC)
      • Alfred Shields FSC Ocean Research (SHORE)
      • Bienvenido N. Santos Creative Writing Center (BNSCWC)
      • Center for Business Research and Development (CBRD)
      • Southeast Asia Research Center and Hub (SEARCH)
      • Yuchengco Center (YC)
    • Centers (2)
      • Center for Engineering and Sustainable Development Research (CESDR)
      • College of Science Center for Natural Sciences and Environmental Research (CENSER)
      • Institute of Biomedical Engineering and Health Technologies (DLSU-IBEHT)
      • Jesse M. Robredo Institute of Governance (JMRIG)
      • Lasallian Institute for Development and Educational Research (LIDER)
      • Social Development Research Center (SDRC)
      • Thermomechanical Analysis Laboratory
    • Offices
      • Research and Grants Management Office
      • DLSU Publishing House (DLSUPH)
      • DLSU Intellectual Property Office (DIPO)
      • DLSU Innovation and Technology Office (DITO)
      • Research Ethics Office (REO)
    • Journals
    • Manuals
    • Projects
      • Algae Big Hub
      • Coenomap
    • Publications
  • Campus Life
    • Undergraduate Online Viewbook
    • Graduate Online Viewbook
      • Brother Andrew Gonzales F.S.C. College of Education
      • College of Computer Studies
      • College of Liberal Arts
      • College of Science
      • Gokongwei College of Engineering
    • Campus Map
    • Student Affairs
    • Student Resources
    • Student Organizations
    • Libraries
    • The Museum
  • Global
    • International Students
      • Student Guide
    • International Short Courses
    • Exchange Programs
    • External Relations
De La Salle UniversityDe La Salle University
  • About
    • About DLSU
      • Facts and Figures
      • Vision-Mission
      • Lasallian Guiding Principles
      • History and Traditions
      • University Governance
      • Code of Ethics
    • Our Core Values
    • Quality@DLSU
    • DLSU President
    • DLSU Administration
    • DLSU Fellows
    • DLSU Emeriti
    • De La Salle Brothers
    • Lasallian Mission
    • Staff
      • Staff Directory
      • Jobs@DLSU
    • Offices
    • Alumni
    • Board of Advisors
  • Admissions
    • Scholarships
    • Undergraduate
    • Graduate
    • Integrated School
      • Grade School
      • Junior High School
      • Senior High School
  • Academics
    • Colleges
      • Brother Andrew Gonzalez FSC College of Education
        • Counseling and Educational Psychology
        • Educational Leadership and Management
        • English and Applied Linguistics
        • Physical Education
        • Science Education
      • College of Computer Studies
        • Computer Technology
        • Information Technology
        • Software Technology
      • Tañada-Diokno School of Law
      • College of Liberal Arts
        • Behavioral Sciences
        • Communication
        • Filipino
        • History
        • International Studies
        • Literature
        • Philosophy
        • Political Science
        • Psychology
        • Theology and Religious Education
      • College of Science
        • Biology
        • Chemistry
        • Mathematics and Statistics
        • Physics
      • Gokongwei College of Engineering
        • Chemical Engineering
        • Civil Engineering
        • Electronics and Communications Engineering
        • Industrial Engineering
        • Manufacturing Engineering and Management
        • Mechanical Engineering
      • Ramon V. del Rosario College of Business
        • Accountancy
        • Commercial Law
        • Decision Sciences and Innovation
        • Management of Financial Institutions
        • Management and Organization Department
        • Marketing Management
      • Carlos L. Tiu School of Economics
    • Campuses
      • Manila
      • Laguna
      • Makati
      • Rufino (BGC)
    • Undergraduate
      • Degree Programs
      • Student Handbook
        • Amendments
      • Undergraduate Viewbook
      • Laguna Campus Viewbook
    • Graduate
      • Degree Programs
      • Student Handbook
        • Amendments
      • Graduate Studies Viewbook
        • Brother Andrew Gonzales F.S.C. College of Education
        • College of Computer Studies
        • College of Liberal Arts
        • College of Science
        • Gokongwei College of Engineering
        • Ramon V. del Rosario College of Business
    • Integrated School
      • SHS Research Congress
      • Student Handbook
    • School of Lifelong Learning
    • Academic Calendar
    • Faculty
    • University Registrar
    • Enrollment Services Hub
      • Document Tracking
      • Request for Documents
      • CAV CHED requests
  • Research
    • Conferences
    • Abstracts
    • Centers (1)
      • Advanced Research Institute for Informatics, Computing and Networking (AdRIC)
      • Alfred Shields FSC Ocean Research (SHORE)
      • Bienvenido N. Santos Creative Writing Center (BNSCWC)
      • Center for Business Research and Development (CBRD)
      • Southeast Asia Research Center and Hub (SEARCH)
      • Yuchengco Center (YC)
    • Centers (2)
      • Center for Engineering and Sustainable Development Research (CESDR)
      • College of Science Center for Natural Sciences and Environmental Research (CENSER)
      • Institute of Biomedical Engineering and Health Technologies (DLSU-IBEHT)
      • Jesse M. Robredo Institute of Governance (JMRIG)
      • Lasallian Institute for Development and Educational Research (LIDER)
      • Social Development Research Center (SDRC)
      • Thermomechanical Analysis Laboratory
    • Offices
      • Research and Grants Management Office
      • DLSU Publishing House (DLSUPH)
      • DLSU Intellectual Property Office (DIPO)
      • DLSU Innovation and Technology Office (DITO)
      • Research Ethics Office (REO)
    • Journals
    • Manuals
    • Projects
      • Algae Big Hub
      • Coenomap
    • Publications
  • Campus Life
    • Undergraduate Online Viewbook
    • Graduate Online Viewbook
      • Brother Andrew Gonzales F.S.C. College of Education
      • College of Computer Studies
      • College of Liberal Arts
      • College of Science
      • Gokongwei College of Engineering
    • Campus Map
    • Student Affairs
    • Student Resources
    • Student Organizations
    • Libraries
    • The Museum
  • Global
    • International Students
      • Student Guide
    • International Short Courses
    • Exchange Programs
    • External Relations

MICROWAVE ASSISTED EXTRACTION OF PHENOLIC COMPOUNDS FROM UBE (Dioscorea alata L.) PEELS

  • Home
  • Colleges
  • Gokongwei College of Engineering
  • Academic Departments
  • Chemical Engineering
  • Thesis Archive
  • MICROWAVE ASSISTED EXTRACTION OF PHENOLIC COMPOUNDS FROM UBE (Dioscorea alata L.) PEELS

Thesis Archive

MICROWAVE ASSISTED EXTRACTION OF PHENOLIC COMPOUNDS FROM UBE (Dioscorea alata L.) PEELS

Deniel Manuel L. de los Reyes
Jessica J. Koa Lee
Sarah Katrina K. Te

Abstract:

The study conducted was the optimization of the microwave assisted extraction of phenolic compounds from ube (Dioscorea alata L.) peels. Based on different studies, ube peels contain phenolic compounds that are beneficial for the human health and these peels are already treated as waste once the ube meat is obtained; thus, it was chosen as the sample for this study.
The extraction of phenolic compounds from the ube peels were done using microwave assisted extraction. It was done using three different parameters at three different levels: microwave power (140, 420 and 700 watts) which is microwave energy delivered into the ube peels, extraction time (2, 5 and 8 minutes) and solid-to-solvent ratio (1:40, 1:60, 1:80 mg/mL). The solvent used throughout the experiment was fixed at 60% (v/v) ethanol. The yield of total phenolic compounds and yield of total anthocyanin content were determined using the Folin Ciocalteau method and HPLC analysis, respectively. The responses for the total phenolic compounds yield were expressed in terms of gallic acid equivalent (GAE) in three ways: yield of total phenolic compounds (mg GAE/ 100 g), yield of total phenolic compounds per power (mg GAE/ 100 g – W) and yield of total phenolic compounds per time (mg GAE/ 100 g – min.).

Out of the three responses, the yield of total phenolic compounds per power gave the highest yield at 578.51 mg GAE/ 100 g of peels. The optimum conditions, determined using the RSM model, of the microwave power, extraction time and solid-to-solvent ratio were found to be at 140 watts, 2 minutes and 1:66.49 mg/mL, respectively. A verification run was done and compared to the model, which had an error of 2.06%. For the determination of the total anthocyanin content, which was expressed in terms of cyanidin-3-O-glucoside (C3G), the highest, median and lowest for each response from the total phenolic compounds yield were tested. The results showed that the highest total phenolic compounds yield had the highest total anthocyanin content with 170.32 mg C3G/ 100 dry ube peel sample.

 

Adviser:

Dr. Cynthia F. Madrazo
Dr. Luis Razon

[email protected]
[email protected]

Chemical Engineering

  • CHE Home
    • Vision-Mission
    • Program History
  • Expected LaSallian Graduate Attributes (ELGA)
  • Program Educational Objectives
  • Student Outcomes
  • Curriculum Map
  • Recognitions, Awards, and Achievements
  • Undergraduate Programs
  • Graduate Programs
  • Enrollment and Graduation Statistics
  • Organizational Structure
  • Faculty Profile – Chemical Engineering
  • Laboratory and Facilities
  • Research and Publications
  • Community Engagement and Linkages
  • Awards and Achievements
  • Thesis Archive
  • Chemical Engineering Society
  • Conferences
  • Licensure Examination
  • Alumni and Board of Advisers
  • Downloadable Forms and Policies
  • Contact Us

Gokongwei College of Engineering

  • About GCOE
    • Vision-Mission
    • Enrollment and Graduation Statistics
    • Thesis Archive
    • OBE Framework
    • Opportunities for Grants and Awards
    • Organization
      • Student Outcomes
      • Office of the Dean
      • Deans’ Gallery
      • Academic Departments
        • Chemical Engineering
        • Civil Engineering
        • Electronics and Computer Engineering
        • Industrial and Systems Engineering
        • Manufacturing Engineering and Management
        • Mechanical Engineering
      • Research Centers
      • Organizational Chart
    • Contact Information
  • ERDT
  • Degree Programs
    • Undergraduate Degree Programs
    • Graduate Degree Programs
  • People
    • Faculty
      • Chemical Engineering
      • Civil Engineering
      • Electronics and Computer Engineering
      • Industrial and Systems Engineering
      • Manufacturing Engineering and Management
      • Mechanical Engineering
    • Students
      • Student Organizations
  • Awards and Recognitions
    • Faculty Awards and Recognitions
    • Student Awards and Recognitions
    • Licensure Examinations
    • Accreditations
    • Rankings

Industry-Academe Linkage

  • Home
  • Activities
  • Development Plans
  • Organizational Framework
  • TECHNOLINK Vol.1.No.1
  • Administration
  • Contact Information
  • Conferences
  • Policies for OJT
  • Company Evaluation Form
  • Benefits
  • Member Companies
  • Student Evaluation Form
  • Administrator-Manage Evaluations

Copyright©2017. All Rights Reserved De La Salle University | Manila PH

 


__________________
Connect with us

__________________

Accessibility | Contact us | Jobs | Campus Map | My.DLSU | Animo.Sys | Privacy | Terms | Give | Safe Spaces Act | Request for Documents
Copyright©2017. All Rights Reserved De La Salle University | Manila PH

×
  • Animo.Sys
  • My.LaSalle
  • AnimoSpace (Canvas)
  • DLSU Gateway
  • HRIS Portal
  • Website Portal
  • The CONCiERGE
  • Give to DLSU
  • Online Request for Documents