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SOSIALISASI MANFAAT DAN PRODUK TANAMAN TERATAI (NYMPHAEA PUBESCENS WILLD) PERAIRAN RAWA DI SUMATERA SELATAN MENJADI PRODUK BIBUTE Miksusanti Miksusanti; Dasril Basir; Azhar Kholiq; Dedi Rohendi; Desnelli Desnelli
SWARNA: Jurnal Pengabdian Kepada Masyarakat Vol. 2 No. 3 (2023): SWARNA: Jurnal Pengabdian Kepada Masyarakat, Maret 2023
Publisher : LPPM Sekolah Tinggi Ilmu Ekonomi 45 Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/swarna.v2i3.410

Tanaman teratai mempunyai kemampuan yang baik tumbuh di daerah rawa Sumatera Selatan. Berdasarkan hasil riset secara invitro maupun invivo, tanaman ini sangat baik bagi kesehatan, baik untuk pangan fungsional maupun farmasetika lainnya. Daun teratai, bunga teratai, biji teratai serta akar nya mempunyai sifat antioksidan yang setara dengan vitamin C dalam meredam radikal bebas. Biji teratai mempunyai sifat prebiotik yang baik. Dalam kegiatan ini tim pengabdian melakukan sosialisasi manfaat tanaman teratai kepada kaum remaja dan dewasa yang berada di desa Pulo Kerto Gandus Sumatera Selatan. Sosialisasi dilakukan menggunakan metoda virtual lewat zoom sebanyak 8 kali dan 4 kali kunjungan penyuluhan ke lapangan, dan 4 kali evaluasi setelah kegiatan perkulaiahan selesai, mengingat Indonesia masih belum benar benar bebas dari wabah virus. Kegiatan diiikuti 54 remaja putri dan laki-laki. Kegiatan juga melibatkan mahasiswa Universitas Sriwijaya. Kegiatan virtual dilakukan dalam rangka memberi materi ilmu sains dan bukti empiris, untuk memperkenalkan tanaman teratai serta manfaatnya kepada remaja sederajat SMA, yang merupakan calon-calon pekerja dan wirausaha dimasa depan. Sosialisasi meliputi data hasil penelitian yang dipublikasi di jurnal bereputasi, data empiris, buku, video tutorial pengolahan biji teratai dan informasi lainnya. Produk-produk dari tanaman teratai dalam kegiatan pengabdian ini dinamakan produk Bibute.

Study of Effect of Weight Ratio on Copolymerization of Chitosan and Acrylamide Eliza Eliza; Desnelli Desnelli; Ady Mara; Fahma Riyanti
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 6, No 3 (2021): October 2021
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v6.i3.96

The use of chitosan as adsorbent in wastewater treatment has received a lot of attention. This is because the price of chitosan is cheap and easy to obtain. The application of chitosan as an adsorbent has the disadvantage of being soluble in acidic medium (pH <6.5), insoluble in water and organic solvents. Other disadvantages of chitosan are low adsorption capacity, and lack of selectivity. In this research, chitosan copolymer synthesis with acrylamide has been carried out by varying chitosan and acrylamide, namely 1:1, 2: 3 and 3: 2 using a microwave oven. The copolymers were characterized using FTIR, XRD, SEM and TGA/DTA. The results of the synthesis of chitosan copolymer with acrylamide were obtained the largest percentage of grafting at a ratio of 2: 3. From the results of FTIR analysis showed that the copolymer had been successfully synthesized. XRD analysis showed that the copolymers synthesized have amorphous properties compared to chitosan. The results of SEM analysis, the copolymers had a porous structure. Thermal analysis showed that the copolymers have better thermal stability than chitosan. The chitosan-acrylamide copolymer which was synthesized in a ratio of 2: 3 has better properties.

Synthesis of Chitosan−Al2O3 Composite using the Sol-Gel Method and Its Application in Photodegradation of Methylene Blue Desnelli Desnelli; Ipro Hati Padilah; Maria Ulfa; Eliza Eliza; Ady Mara; Fatma Fatma
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 8, No 1 (2023): February 2023
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v8.i1.40

The research on synthesis of composites Kitosan-Al2O3 by the sol-gel method for photodegradation of methylene blue has been carried out. Chitosan-Al2O3 varied by mass ratios (1:1), (1:2) and (1:3). The product were characterized using XRD and UV-DRS. Chitosan-Al2O3 ratio (1:1) were characterized by SEM-EDS. The best material will be used to degrade the mehtylene blue by various condition, i.e., effect of pH, contact time and initial concentration of methylene blue. The Chitosan-Al2O3 (1:1) composite was chosen as a material for degrading methylene blue. The result of characterization using XRD showed crystal size the Chitosan- Al2O3 (1:1) composites result were 3,17 nm. UV-DRS characterization, The band gap energy is 1,35 eV. The morphological condition by SEM of Chitosan-Al2O3 ratio (1:1) showed a spherical shape with a small size, and a porous surface the constituent elements C (4.93%), O (33.31%), Na (13.92%), Al (45.59%) dan Zn (2.24%). The degradation process showed the effective condition were pH 10 and contact time of 200 minutes. The optimum concentration of methylene blue at 20 ppm with percent effectivity of concentration reduction methylene blue i.e. 79.35% and the result of TOC analysis i.e. 22,36%. The Chitosan-Al2O3 can be used to degraded the Methylene blue.

Inovasi Pembuatan Sabun Mandi Cair Dari Virgin Coconut Oil di Desa Tetangga UNSRI Miksusanti Miksusanti; Zainal Fanani; Tri Kurnia Dewi; Desnelli Desnelli
ABDIKAN: Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Vol. 2 No. 2 (2023): Mei 2023
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/abdikan.v2i2.1708

Community service has been conducted regarding counseling on making liquid soap from Virgin coconut oil. The service was carried out in front of mothers and young women in Semambu Island village. In the community service activities, demonstrations and practices are carried out on how to make liquid soap that smells good and can be used as bath soap from Virgin Coconut Oil. The community is very enthusiastic to learn how to make this soap because coconut raw materials are widely available in Semambu, Ogan Ilir Utara District, Jalan Raya Palembang-Prabumulih. Counseling and training on liquid soap are carried out face-to-face in the field. This activity was attended by 50 female recitation members as well as young women from the village. The activity was also attended by 7 Sriwijaya University students. The method of community service activities carried out is the delivery of scientific material and empirical facts from Island village. From the results of the activity, the participants tried to make their own soap using the raw materials provided by the community service team from the UNSRI Faculty of Mathematics and Natural Sciences.

Chitosan-ZnO Composite for Removal of Methylene Blue Desnelli Desnelli; Leidya Yulinda; David Fernando; Fatma Fatma; Ady Mara
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 8, No 3 (2023): October 2023
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v8.i3.133

This study aims to determine the effectiveness and increase in absorption of the chitosan-ZnO composite in the process of removing methylene blue when using the photodegradation method with the help of a UV lamp. Chitosan was synthesized from shrimp shell waste composite with metal oxide ZnO. The results of the characterization using XRD obtained the diffraction peak for chitosan at an angle of 2θ, namely 19.85°; 29.43°; 34.76° and chitosan-ZnO composite at an angle of 20.18°; 28.93°; 33.57° The SEM-EDX characterization shows that chitosan-ZnO has small, light-colored grains and more gaps and contains elements of chitosan and Zn. In the FTIR characterization, there was a decrease in intensity at a peak of around 3360 cm-1 which was caused by the chitosan-ZnO composite producing OH groups which reacted with methylene blue dye. In testing the effect of contact time using a UV lamp, there was an increase in the percentage of degraded methylene blue compared to without using a UV lamp. The maximum contact time is obtained at 60 minutes. While testing the effect of methylene blue dye concentration, the maximum absorption concentration was 45 ppm at 60 minutes of contact time. The adsorption capacity of the composite against methylene blue dye without UV light was 18.91 mg/g while using a UV lamp it increased to 20.145 mg/g. Based on this research, the chitosan/ZnO composite can be used quite well as a methylene blue dye remover.Keywords: Chitosan, Chitosan-ZnO, Photodegradation, Adsorption, Methylene blue.

SOSIALISASI MANFAAT DAN PRODUK TANAMAN TERATAI (NYMPHAEA PUBESCENS WILLD) PERAIRAN RAWA DI SUMATERA SELATAN MENJADI PRODUK BIBUTE Miksusanti Miksusanti; Dasril Basir; Azhar Kholiq; Dedi Rohendi; Desnelli Desnelli
SWARNA: Jurnal Pengabdian Kepada Masyarakat Vol. 2 No. 3 (2023): SWARNA: Jurnal Pengabdian Kepada Masyarakat, Maret 2023
Publisher : LPPM Sekolah Tinggi Ilmu Ekonomi 45 Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/swarna.v2i3.410

Tanaman teratai mempunyai kemampuan yang baik tumbuh di daerah rawa Sumatera Selatan. Berdasarkan hasil riset secara invitro maupun invivo, tanaman ini sangat baik bagi kesehatan, baik untuk pangan fungsional maupun farmasetika lainnya. Daun teratai, bunga teratai, biji teratai serta akar nya mempunyai sifat antioksidan yang setara dengan vitamin C dalam meredam radikal bebas. Biji teratai mempunyai sifat prebiotik yang baik. Dalam kegiatan ini tim pengabdian melakukan sosialisasi manfaat tanaman teratai kepada kaum remaja dan dewasa yang berada di desa Pulo Kerto Gandus Sumatera Selatan. Sosialisasi dilakukan menggunakan metoda virtual lewat zoom sebanyak 8 kali dan 4 kali kunjungan penyuluhan ke lapangan, dan 4 kali evaluasi setelah kegiatan perkulaiahan selesai, mengingat Indonesia masih belum benar benar bebas dari wabah virus. Kegiatan diiikuti 54 remaja putri dan laki-laki. Kegiatan juga melibatkan mahasiswa Universitas Sriwijaya. Kegiatan virtual dilakukan dalam rangka memberi materi ilmu sains dan bukti empiris, untuk memperkenalkan tanaman teratai serta manfaatnya kepada remaja sederajat SMA, yang merupakan calon-calon pekerja dan wirausaha dimasa depan. Sosialisasi meliputi data hasil penelitian yang dipublikasi di jurnal bereputasi, data empiris, buku, video tutorial pengolahan biji teratai dan informasi lainnya. Produk-produk dari tanaman teratai dalam kegiatan pengabdian ini dinamakan produk Bibute.

Adsorption Study on Phenol from Bentonite doped with Zinc oxide: Synthetis, Characterization, Equilibrium, Kinetics, and Thermodynamic Desnelli, Desnelli; Rizkiani, Delisa; Alfarado, Daniel; Ferlinahayati, Ferlinahayati; Yohandini, Heni; Fatma, Fatma; Mara, Ady; Suheryanto, Suheryanto; Nurnawati, Elisa; Hamidah, Afreni; Said, Muhammad
IJFAC (Indonesian Journal of Fundamental and Applied Chemistry) Vol 9, No 2 (2024): June 2024
Publisher : IJFAC (Indonesian Journal of Fundamental and Applied Chemistry)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24845/ijfac.v9.i2.82

This study modified current bentonite with zinc oxide (ZnO) and investigated the performance of phenol adsorption. The material bentonite-ZnO was successfully synthesized and characterized with X-ray diffraction (XRD), scanning electron microscopy-energy dispersive X-ray (SEM-EDX), and Fourier transform infrared (FT-IR). The adsorption performance was determined by adsorption equilibrium, kinetics, and thermodynamic parameters. The adsorption, kinetic, and thermodynamic parameters were compared alternatively. The phenol adsorption capacity was obtained from Langmuir and Freundlich adsorption isotherm models, which for bentonite-ZnO was fit with both isotherm models (Langmuir R2 = 0,997 and Freundlich R2 = 0,9515) and was favorable than activated bentonite (n value bentonite-ZnO = 2.389; activated bentonite = 0,898). A kinetic model was tested with pseudo-first-order, pseudo-second-order, and intraparticle diffusion models which bentonite-ZnO and activated bentonite fit in the pseudo-second-order with an excellent agreement (R2 = 0,999). Several thermodynamic parameters such as enthalpy, Gibbs free energy, and bentonite-ZnO have an entropy more than zero (ΔS = 0.008 J/molK), which demonstrated the feasibility and spontaneity (ΔG < 0) and endothermic nature (ΔH = 3,056 kJ/mol) of the phenol adsorption process. Several thermodynamic parameters such as enthalpy, Gibbs free energy, and bentonite-ZnO have an entropy more than zero (ΔS = 0.008 J/molK), which demonstrated the feasibility and spontaneity (ΔG < 0) and endothermic nature (ΔH = 3,056 kJ/mol) of the phenol adsorption process. Based on the result data in this article, modified bentonite with ZnO has increased the ability for phenol adsorption than currently activated bentoniteKeywords: bentonite, adsorption equilibrium, adsorption kinetics, thermodynamics model, phenol, bentonite-ZnO

Pyrolysis of Puspa Wood Sawdust and Sugarcane Bagasse into Biochar Asri, Wan Ryan; Mara, Ady; Desnelli, Desnelli; Hasanudin*, Hasanudin
Aceh International Journal of Science and Technology Vol 11, No 1 (2022): April 2022
Publisher : Graduate School of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/aijst.11.1.25066

Puspa wood sawdust and sugarcane bagasse are abundantly available but have low carbon content and nutrients. The carbon content and nutrients could be increased by converting biomass into biochar through pyrolysis. The independent variables of pyrolysis were essential to investigate because those inherently influence biochar quality. In this study, the effect of pyrolysis temperature (300, 350, 400, 450, and 500 C) and time (30, 60, 90 mins) on the biochar characteristic such as pH, yield, and proximate compositions were determined. The total nitrogen, P2O5, and K2O content at optimum condition biochar were also investigated. The data analysis showed that the pyrolysis temperature and time increment positively correlated to the pH, ash content, and carbon content. At the same time, the yield and volatile matter were vice versa. Both biochar's optimum pyrolysis temperature and time were achieved at 500 and 90 minutes. The carbon content and nutrient of biochar were also increased compared to the biomass. The pyrolysis method has enhanced biomass quality, and the biochar may be used as a growing media and soil amendment. It can be concluded that the sugarcane bagasse biochar was more likely favorable than puspa wood sawdust biochar due to its higher fixed carbon and nutrient content

Effect of Silica Addition on Mechanical Properties of Eggshell-Derived Hydroxyapatite Fatma, Fatma; Desnelli, Desnelli; Riyanti, Fahma; Kamal, Mustafa; Mannan, Muhammad Ramdan Abdul; Hariani*, Poedji Loekitowati
Aceh International Journal of Science and Technology Vol 10, No 2 (2021): August 2021
Publisher : Graduate School of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/aijst.10.2.21982

Eggshell is a solid waste that is available in abundance but is being left unused. Eggshell containing calcium in a high amount. Calcium can be used as a precursor for hydroxyapatite (HAp). Modification of HAp with SiO2 is expected to improve its low mechanical properties for biomedical applications. In this study, HAp is synthesized from the eggshell. Then, it was modified by adding SiO2 utilizing the coprecipitation method with concentrations of 10%, 20%, 30%, and 40%, respectively. The HAp and HAp/SiO2 were characterized using; X-ray diffraction and Fourier transform infrared spectroscopy. The analysis HAp and HAp/SiO2 were density, compressive strength, and hardness. The best mechanical properties of HAp/SiO2 were characterized using SEM-EDS. The HAp were prepared successfully with a ratio of Ca/P was 1.673, close to the theoretical 1.67. The addition of SiO2 caused a decrease in crystallite size and density but increased compressive strength and hardness. The best mechanical properties of HAp/SiO2 were obtained with SiO2 of 30% and 40% with similar values.

Peningkatan Kesehatan Masyarakat dengan Pembuatan Cairan Fermentasi dari Limbah Sayur dan Buah sebagai Obat Kumur dan Obat Aneka Luka Fahma Riyanti; Desnelli, Desnelli; Nova Yuliasari; Fatma, Fatma; Julinar, Julinar
ABDIKAN: Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Vol. 3 No. 2 (2024): Mei 2024
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/abdikan.v3i2.3112

The liquid product resulting from fermentation of leftover vegetables and fruit that is still fresh and not rotten for approximately 100 days has the characteristics of being brown in color, has an aroma like vinegar or fresh sourness and a very acidic pH, namely less than 4. This fermented product contains acertic acid and lactic acid and is a natural antimicrobial source, so it has antibacterial and anti-fungal capabilities. This antibacterial activity can inhibit the activity of bacteria that cause tooth decay such as L.acidophilus and S.mutans bacteria so it can be used as a mouthwash. The wound healing process can be accelerated due to the presence of antibacterial compounds by stimulating the body's immune response. So that this fermented liquid can be used as a wound medicine. Community service activities in the form of counseling, practice of making fermented liquid and providing ready-made products are topics carried out at RT 07 LK IV, Timbangan Indralaya Utara, Ogan Ilir Sumatera Sealatan. The counseling participants were mothers and young women, estimated to be 15 - 25 people. To make it easier for the extension participants to understand and the aim of the activity to be achieved, a demonstration was carried out on making fermentation liquid, harvesting F2 products with mint leaves for gargling and distributing the product. The extension participants were very enthusiastic about participating in the activity, seen from the many questions asked.

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