Natural Science > Biology > DG CY2020 7942

Research Title Ethnobotanical Survey, Usage Validation, and Safety Assessment of Economically-Important Native Plants in Forest Over Limestone Ecosystem (Year 2 of 2)
Research Personnel Leader:

Research Duration Start:
1 January 2019
31 August 2019
Research Location UPLB-CAS-IBS
Research Description This project includes ethnobotanical researches to look for economicallyimportant plants as possible resources for community development programs in selected municipalities in Samar Island. The information that will be gathered can help in identifying those native plants that are being used as alternative food source, natural colorants, biopesticides, for fibers and textiles, among others. Upon identification of such plants and documentation of their uses, there should be a scientific validation for those claims especially for those that are being taken or can be taken by the locals. This would ensure that the plant materials the locals are using as food have not only the nutrients they need, but also other phytochemicals that may improve their health. It could also determine the efficiency of their natural colorants by characterizing the pigments present in the plants. Defining the presence of different active metabolites in their biopesticides could also explain how those plants can be used as such. In the same manner, it is also important to evaluate how safe these plants to be used for various purposes. This information could also help the locals to develop products from plants which are known to be effective and, at the same time, safe.
Research Objectives The project generally aims to conduct a comprehensive ethnobotanical inventory of the plants in the forests over limestone of selected municipalities of Samar Island (Taft, Guiuan, Basey, and Paranas) and validate their current applications. Specifically, it seeks to: 1. provide an ethnobotanical account of the plants from forests over limestone areas with economic and cultural values utilized by the local community; 2. validate documented applications (i.e. food among others) through proximate composition analysis and secondary metabolite profiling; and 3. assessment of the possible risks of using such plants through toxicity and mutagenicity testing.
Research Beneficiary(ies) People's Organization (PO), Researchers, DENR, LGU, academe possible business operators
Research Accoplishments [CY 2018] Gratuitous permit (GP), Prior Inform Consent (PIC), community clearance; Organized information (synthesized historical and contemporary data); Narrative description and photo/videodocumentation of the processing activities to plant-derived product; Documentation of the phytochemicals (primary and secondary metabolites) present in the plants; TLC profiles of different metabolites present in the plant extracts showing the diversity and relative concentrations; Determination of the lethal dose (LD50) of the plant extracts identified as food source/colorant/medicine; Presence/ number of revertant colonies caused by mutagenic extracts; At least two (2) ISI publications
Total Research Cost ₱626,146.96
Research Agencies Funding:


Research Budget Breakdown Year:
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Code DG CY2020 7942
KRA Code
Priority Thrust DOST

Sector Natural Sciences
Actual Sector Plant Science
Related sectors Environmental
Entry revision: February 2021