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All Journal VALENSI AL KAUNIYAH Jurnal Sumberdaya Hayati
Lily Surayya Eka Putri, Lily Surayya Eka
Program Studi Biologi, Fakultas Sains Dan Teknologi, UIN Syarif Hidayatullah Jakarta
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Immunology & microbiology Materials Science & Nanotechnology

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Synthesis and Characterization of Bioplastic from Macroalgae Padina australis Putri, Lily Surayya Eka; Saridewi, Nanda; Farah, Sabrina
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 9, No. 2, November 2023
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v9i2.32906

Abstract

Synthetic plastics are one of the more significant contributors to waste in the environment. Bioplastic is a type of plastic that is environmentally friendly because it is made from biomass. In this study. brown macroalgae. Padina australis. is one of the potential raw materials found in large quantities in Indonesian waters and used to produce bioplastics with filtration technique. The aim of this study was to synthesis bioplastics using P. australis alginate with glycerol plasticizer.The alginate macroalgae were mixed with glycerol as a plasticizer in the following proportions: 1:15. 1:25. 2:15. and 2:25. with the quality determined through tensile strength measurements. water solubility. and degradation time. On day 12. the tensile strength of P. australis bioplastic was 3.24-7.33 MPa. the water solubility was 61.79-65.19%. and the biodegradability rate was 0.1-20.0%. When the macroalgae alginate and glycerol formulation was 2:25. the best bioplastic film produced had a tensile strength of 7.33 MPa and a water solubility of 61.79%. which was lower than the Indonesia National Standard number 7818/2016 for bioplastic products. P. australis. however. has the potential to be a promising alternative bioplastic product that contributes to the reduction of petroleum-based plastic pollution in the environment. Furthermore. as a preliminary study. it will be improved to meet industrial standards or find the products that match these characteristics.
Potensi Waste Organic Product (WOP) FST 1310 terhadap Pertumbuhan Candida albicans Penyebab Kandidiasis: Potential of the Waste Organic Product (WOP) FST 1310 on the Growth of the Fungi Candida albicans Causes Candidiasis Ramadhan, Firdaus; Ghoza, Muhammad Radian; Haribowo, Dinda Rama; Sholeha, Dania Refia Riska; Kartika; Lestari, Anggita Rana Sasmita; Fikriwansyah, Aswir; Putri, Lily Surayya Eka; Ramadhani, Lidia Anggita; Sugoro, Irawan
Jurnal Sumberdaya Hayati Vol. 11 No. 1 (2025): 2025
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.11.1.8-15

Abstract

Candida albicans is an agent that causes candidiasis which can cause health problems in human’s organs. This study aims to determine the antifungal activity and inhibition zone diameter of Waste Organic Product (WOP) FST 1310 against Candida albicans. This type of research is experimental, using the Kirby-Bauer agar diffusion method with 6 treatments: P1: 100%, P2: 80%, P3: 60%, and P4: 40%, along with 2 controls, P5: nystatin (positive control) and P6: distilled water (negative control). The results showed that the WOP FST 1310 from orange peel had a larger inhibition zone diameter compared to the vegetable-derived. For the vegetable-derived eco-enzyme, the highest inhibition zone diameter was at a 100% concentration with an average of 3.7 mm. Meanwhile, for the orange peel eco-enzyme, the highest inhibition zone diameter was at a 40% concentration with an average of 5.3 mm.
Microplastics Desorption From Green Mussels (Perna viridis L., 1758) Using Oxidizing Agent Ca(OH)2 Putri, Lily Surayya Eka; Mardiansyah, Mardiansyah; Yulia, Anis
Al-Kauniyah: Jurnal Biologi Vol 18, No 2 (2025): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v18i2.44931

Abstract

Microplastics (MPs) are currently one of the main pollutants in the aquatic environment and translocation to the human body will cause health problems. This study aims to find the desorption formula for MPs from green mussels (Perna viridis) with the oxidizing agent Ca(OH)2 or whiting lime. The results will be compared with the use of HNO3 which is commonly used for MPs analysis. There were 2 variations of Ca(OH)2, namely 10 and 15 mL, and soaking for 15; 30; and 60 minutes. The abundance and characteristics of MPs (shape, size, and color) were observed in 30 samples with 3 repetitions. The results of this research indicate that all samples have been contaminated with MPs. The highest number of MPs was found in the immersion of Ca(OH)2 for 30 minutes at a concentration of 15 mL of 1% Ca(OH)2. The oxidizing agent Ca(OH)2 was able to remove MPs much higher than HNO3 with an effectiveness of 72.98–1,120% or 2–12 times, which was supported by statistical results that showed significant differences (P <0.05). Thus, the conclusion is that the use of Ca(OH)2 is effective in removing MPs from green mussels with an optimal ratio of 1:3.8 (g/mL).
Microplastics Desorption From Green Mussels (Perna viridis L., 1758) Using Oxidizing Agent Ca(OH)2 Putri, Lily Surayya Eka; Mardiansyah, Mardiansyah; Yulia, Anis
Al-Kauniyah: Jurnal Biologi Vol. 18 No. 2 (2025): AL-KAUNIYAH JURNAL BIOLOGI
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v18i2.44931

Abstract

Microplastics (MPs) are currently one of the main pollutants in the aquatic environment and translocation to the human body will cause health problems. This study aims to find the desorption formula for MPs from green mussels (Perna viridis) with the oxidizing agent Ca(OH)2 or whiting lime. The results will be compared with the use of HNO3 which is commonly used for MPs analysis. There were 2 variations of Ca(OH)2, namely 10 and 15 mL, and soaking for 15; 30; and 60 minutes. The abundance and characteristics of MPs (shape, size, and color) were observed in 30 samples with 3 repetitions. The results of this research indicate that all samples have been contaminated with MPs. The highest number of MPs was found in the immersion of Ca(OH)2 for 30 minutes at a concentration of 15 mL of 1% Ca(OH)2. The oxidizing agent Ca(OH)2 was able to remove MPs much higher than HNO3 with an effectiveness of 72.98–1,120% or 2–12 times, which was supported by statistical results that showed significant differences (P <0.05). Thus, the conclusion is that the use of Ca(OH)2 is effective in removing MPs from green mussels with an optimal ratio of 1:3.8 (g/mL).
Co-Authors Farah, Sabrina Fikriwansyah, Aswir Firdaus Ramadhan Ghoza, Muhammad Radian Irawan Sugoro Kartika Lestari, Anggita Rana Sasmita Mardiansyah Mardiansyah, Mardiansyah Nanda Saridewi, Nanda Ramadhani, Lidia Anggita Sholeha, Dania Refia Riska Yulia, Anis