5 out of 7 Scientific Posters of DOST-PTRI Researchers Chosen for this Year’s PAASE and APAMS Rapid Fire Competition

By: Sharmainne Rhey B. Caoili
Technology Transfer, Information and Promotions Staff

TAGUIG CITY – Five scientific papers of DOST-PTRI researchers submitted as posters were presented in the Rapid Fire Competition which was held today, August 12, 2020, as part of this year’s celebration of the 40th Philippine – American Academy of Science and Engineering (PAASE) Anniversary & 2020 APAMS (Annual Scientific Meeting) Philippines.

The poster sessions, grouped into 4 categories, were conducted from August 6 – 11, 2020. Seven scientific papers of the DOST-PTRI fall under Group C category of Material Science, which was presented/posted on PAASE’s website last August 10, 2020, from 9:00 AM – 5:00 PM. The list of the DOST-PTRI poster submissions are seen below:

Scientific Posters of DOST-PTRI Researchers for the PAASE and APAMS Poster Session:


Poster Title


Brief Description of the Research


High Molecular Weight Carrier-stabilized Spray Drying of Aqueous Talisay (Terminalia catappa) Leaf Extracts as Natural Dye for Textile

Joanna Tess M. Manuel, Dr. Julius L. Leaño, Jr.


This study explored an additive that was found to be suitable for spray drying Talisay extract to increase its powder yield production and its storage stability as a natural dye.


Varietal and Locational Variability of Philippine Pineapple (Ananas comosus) Leaf Fiber Fineness for Spun Yarn Processing

Agustin A. Bordallo, Jr., Eduardo M. Marin, Dr. Julius L. Leaño, Jr.


A project wherein decorticated pineapple leaf fibers (PALF) from 3 varieties of pineapple plant namely Formosa, Hawaiian, and F200 from different localities were evaluated based on their physico-chemical properties and processing performances in producing 75/25 ratio blend of cotton/PALF blended yarn.


Commercialization of Bivoltin Bombyx Mori L Silkworm Hybrid Cocoon Production in Support of Philippine Silk Industry

Cheryl G. Lopez, Serenita S. Ompoy, Vincent Michael E. Salon, Ronnie M. Liguan


The study focused on the rearing performance, cocoon characteristics and grading, and the raw silk properties of the four (4) different DOST-PTRI hybrid lines of silkworms reared in different production areas. This highlights the contribution of the institute in improving silkworm hybrids and to the achievements of the Philippine silk industry.


Digitization of Traditional Filipino Weaves Using a Computer-Aided Design Software (Weavepoint©)


Cornelio V. Loyola, Jr., and Dr. Julius L. Leaño, Jr.


The research centered on the aim to digitize and generate manual draft of the Binakol pattern of Ilocos, Hablon pattern of Iloilo, and the Inaul pattern of Maguindanao using a CAD program, by means of Weavepoint© in order to advance the product development and innovation of the traditional Filipino textile weave patterns.


Thermoacoustic Nonwoven Textiles from Abaca (Musa textilis Nee) Fibers


Roberto O. Casero, Dr. Julius L. Leaño, Jr.


The potential application of Musa textilis Nee abaca fiber for nonwoven fabric production was investigated. The treatment of abaca fiber with dilute alkali solution and bleaching agent resulted in finer fibers with decreased residual gum content. This is indicative of the optimal reduction of non-cellulosic components which is important in nonwoven fabric production.



Mechano-Chemical Natural Textile Fiber Extraction of Kawayang Tinik (Bambusa blumeana) Bamboo

Eduardo M. Marin and Dr. Julius L. Leaño, Jr.


The study explored the most efficient method for mechanical, chemical, and bio-retting treatments for Kawayang Tinik bamboo fiber extraction as a textile material source.



Pineapple Leaf Fiber-blended Yarns with ≥ 40% (w/w) Content using the Semi-Worsted Spinning System


Ronald S.Pechera , Dr. Julius L. Leaño, Jr.


Two appropriate spinning systems were used in the study utilizing both short and long staple spinning systems. The semi-worsted spinning system for the pineapple (Ananas comosus) leaf fiber (PALF) enables the development of more PALF from 25% to 60% w/w. The established higher composition (>40%w/w) promises more opportunities for farmers in extending the value of PALF which is considered as an agricultural by-product

The first five researches in the above list were chosen to be presented in the Rapid Fire Competition. Each of the researchers was only given 3-5 minutes to present and pitch their respective researches in the field. The winner of the competition will be announced on August 14, 2020.

The Institute is equally proud of Dr. Julius L, Leaño, Chief of the Research and Development Division of the institute, on his induction as a new Associate Member of the PAASE organization on the same date as the Rapid Fire Competition.

The PAASE is a non-profit organization with more than 300 distinguished members from the Philippines and the United States of America and includes those from around the globe who are engaged in various scholarly and research-related activities. Their month-long anniversary is celebrated through Online Congress from July 20 to August 14, 2020, with the conduct of hundreds of webinars and conferences of plenary and parallel sessions to advance engineering, science, and technology while collaborating with fellow scientists and engineers, including the topic of the times: various COVID-19 initiatives.

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