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All Journal Asean Journal of Science and Engineering (AJSE)

Anamarie Valdez

Sultan Kudarat State University

Author-ID : 5746704

Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Engineering Materials Science & Nanotechnology

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Articles

Paracord Anklet and Bracelet Controls Against Mosquitoes Deaniella Shaira Sembrano; Omeir Yasin; Ericka Shyn Guimbuayan; Joshua Dave Dalanon; Ih Robert John Cambel; Eric Manalo Jr.; Amera Malaco; Anamarie Valdez
ASEAN Journal of Science and Engineering Vol 1, No 1 (2021): AJSE: March 2021
Publisher : Universitas Pendidikan Indonesia (UPI)

The purpose of this study is to assess the effectiveness of paracord anklet and bracelet made up of guyabano (Annona Muricata) seeds and wormwood plant (Artemisia Absinthium) extract as mosquito repellent and to determine if the paracord anklet and bracelet can be as effective as the commercial patch used in this study. In the study, 2 groups were examined: The experimental group and the control group. The experimental group with variation 1 (50 guyabano seed, 80% of water, and wormwood extract), variation 2 (75 Guyabano seed, 50% of water, and wormwood extract), and variation 3 (100 Guyabano seed, 30% of water, and wormwood extract). The control group was tested with the commercialized patch. Results showed that the overall gathered data showed very promising effectiveness, with a level of effectiveness of 6.5 means. Furthermore, the ANOVA showed no differences at all between the Control and Experimental Group (fcalc 2.20fcrit3.49, P=0.13). This may therefore mean that the paracord anklet and bracelet made up of guyabano and wormwood plant is as effective as the commercial patch used in this study. This study shows that the paracord anklet and bracelet can be considered as an alternative and environmentally friendly mosquito repellent.

Bioplastic from Seaweeds (Eucheuma Cottonii) as an Alternative Plastic Karylle Lyra Consebit; Kenneth Cole Dermil; Emmanuel Yuri Magbanua; Frenz Janna Racadio; Shea Verni Saavedra; Hassanal Abusama; Anamarie Valdez
ASEAN Journal of Science and Engineering Vol 2, No 2 (2022): AJSE: September 2022
Publisher : Universitas Pendidikan Indonesia (UPI)

This study aims to determine the capability of seaweed (Eucheuma cottonii) as a bioplastic material on varying concentrations of glycerine (10, 20, and 30mL) in terms of (1) tensile strength, and (2) biodegradability. In making the bioplastic, the researchers dried and extracted several seaweeds, used glycerine as the plasticizer, water as the solvent, corn-starch as the thickener, and vinegar to help the starch dissolve easily. After mixing all the ingredients on a hot pan, we placed them on a flat surface lined with foil as soon as possible before the product starts to solidify. It took 3-4 days to harden, depending on how thick the product is. The results in testing the tensile strength revealed that the less amount of glycerine allowed the harder bioplastic produced. The biodegradability test showed that glycerine components caused the plastics to differ in size, shape, moisture, texture, and how fast they degrade, as well as the tensile strength. However, in testing biodegradability, there is no significant difference in the level of glycerine concentration. This study presents how the seaweed bioplastic was created, what it contributes to the community, and how the ecosystem benefits from it, such as reducing the usage of synthetic plastic.

Bignay (Antidesma Bunius) Leaf Extract Stands as an Organic Pesticide against Rice Black Bugs (Scotinophara Coarctata) Jeune Aiyana Zophie Latiza; Ashley Claire Pasawilan; Goji Gacoscos; Dave Lesther Bangeles; Charles Godwin Caas; Anamarie Valdez; Hassanal Abusama
ASEAN Journal of Science and Engineering Vol 2, No 1 (2022): AJSE: March 2022
Publisher : Universitas Pendidikan Indonesia (UPI)

This research aimed to sought solutions to the growing problems of rice black bugs (Scotinophara coarctata) damaging the rice crops of farmers. This study used an experimental method to determine which solution is effective against rice black bugs. Bignay (Antidesma bunius) leaves were collected, cut, soaked in water, crushed using a mortar and pestle, and extracted using a thin cloth. The extracts of the leaves were then placed in 4 different concentrations in bottles. 6 bugs were soaked in each solution, respectively, but with different periods (3, 5, and 10 min). We found that the extract is lethal towards black bugs since it has anti-bacterial activity, even though it damaged the rice crops. Bignay fruit was intended to be utilized as another variable, but due to the weather, fruits were not yet visible in the Bignay tree. We concluded that the thickness of the solution served as the main reason why the rice black bugs died. The result of this study can be utilized to address the rising problems caused by rice black bugs.

Co-Authors Amera Malaco Ashley Claire Pasawilan Charles Godwin Caas Dave Lesther Bangeles Deaniella Shaira Sembrano Emmanuel Yuri Magbanua Eric Manalo Jr. Ericka Shyn Guimbuayan Frenz Janna Racadio Goji Gacoscos Hassanal Abusama Ih Robert John Cambel Jeune Aiyana Zophie Latiza Joshua Dave Dalanon Karylle Lyra Consebit Kenneth Cole Dermil Omeir Yasin Shea Verni Saavedra

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