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Intensifikasi Sintesis Diasetin dan Triasetin Melalui Esterifikasi Gliserol Dengan Katalis Berbasis Daun Bambu Fitri, Maysa; Marwan, Marwan; Syamsuddin, Yanna; Suriaini, Nanda
REACTOR: Journal of Research on Chemistry and Engineering Vol 5, No 1 (2024): Published in June 2024
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v5i1.126

The synthesis of acetins from glycerol is achieved through esterification assisted by a solid acid catalyst and microwave irradiation. Diacetin and triacetin, suitable as biofuel additives, are produced using biogenic silica from bamboo leaves, which is chemically activated with strong acid and calcined. No research has utilized silica catalysts derived from bamboo leaf ash to produce diacetin and triacetin. This study aims to employ bamboo leaf-based heterogeneous catalysts to enhance triacetin selectivity, simplify product purification and separation, and enable catalyst reuse. Furthermore, microwave application can accelerate the reaction time. The best total selectivity for diacetin and triacetin was obtained under operating conditions of 3% catalyst concentration, a 1:6 molar ratio, and 60 minutes of microwave irradiation. The yields of diacetin and triacetin under these conditions were 65.80% and 18.70%, respectively. GC-MS and FTIR analysis confirm the presence of monoacetin, diacetin, and triacetin, with a total selectivity for diacetin and triacetin of 84,50%.

GLISEROLISIS ASAM LEMAK BEBAS DALAM MINYAK SAWIT MENTAH MENGGUNAKAN GLISEROL MENTAH: OPTIMASI PROSES DENGAN CENTRAL COMPOSITE DESIGN (CCD) Suriaini, Nanda; Arpi, Normalina; Syamsuddin, Yanna; Supardan, Muhammad Dani
AKSELERASI: Jurnal Ilmiah Nasional Vol 6 No 3 (2024): AKSELERASI: JURNAL ILMIAH NASIONAL
Publisher : GoAcademica Research dan Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54783/jin.v6i3.1135

Perkebunan kelapa sawit menghasilkan sumber minyak penting untuk produksi pangan dan energi di Indonesia. Investigasi saat ini dilakukan untuk mengetahui pengaruh gliserolis menggunakan gliserol mentah terhadap kandungan ALB CPO. Gliserol yang diperoleh sebagai produk sampingan dari transesterifikasi dapat digunakan secara langsung untuk menurunkan ALB melalui reaksi gliserolisis. Metode respon permukaan menggunakan Central Composite Design (CCD) diimplementasikan untuk merancang eksperimen dan menentukan kondisi optimal. Kondisi optimal glisolisis yang menurunkan kandungan ALB CPO dari 6,15 menjadi 0,24% diperoleh dengan suhu reaksi 75,17 °C, kecepatan pengadukan 235,06 rpm, rasio molar gliserol terhadap ALB 3,57:1, dan katalis 0,98 % (b/b) selama 90 menit durasi reaksi. Modelnya signifikan, dengan nilai p < 0,0001 dan R2 0,95. Temuan ini dikonfirmasi keandalan modelnya dengan menjalankan kondisi optimal secara eksperimental, dengan hasil kandungan ALB sebesar 0,27%.

Pemodelan kinetika pengeringan buah amla (Indian gooseberry) Auliyaa Raaf; Farid Mulana; Yanna Syamsuddin; Nanda Suriaini; Muhammad Dani Supardan
AGROINTEK Vol 18, No 4 (2024)
Publisher : Agroindustrial Technology, University of Trunojoyo Madura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21107/agrointek.v18i4.19802

Amla fruit is not consumed directly because it has a sour and astringent taste, so it is widely used in various forms of dried and processed products for ease of use. Therefore, post-harvest handling of amla fruit as well as drying process is necessary. This study investigates the effect of drying method and sample thickness on the drying kinetics of amla fruit. In this study, amla was dried by sun drying and oven drying (at 40, 60 and 60°C) and sample sizes (1×0,5×0,5) cm and (1×1×0,5) cm. The results showed that the drying method and thickness of the sample affected the drying time. The shortest drying time was obtained from oven-dried samples at a drying air temperature of 60℃ and samples with smaller sizes (slice I). The semi-theoretical and empirical models were evaluated in amla fruit's drying kinetics. The fit of the model with the experimental data is determined using the coefficient determination (R2). Model Midili et al. give the best match with the highest R2 value. The effective moisture diffusivity at various drying conditions ranged from 5.747 × 10-10 to 1.242 × 10-9 m2/s for slice I and 4.522 × 10-10 to 9.213 × 10-10 m2/s for slice II. The effective moisture diffusivity is correlated with temperature using the Arrhenius equation. The activation energy needed to remove moisture from the amla fruit matrix was 20.230 kJ/mol for slice I and 22.006 kJ/mol for slice II. This kinetic study is useful for predicting the drying process yield and designing the dryer.

Intensifikasi Sintesis Diasetin dan Triasetin melalui Esterifikasi Gliserol dengan Katalis Berbasis Daun Bambu Fitri, Maysa; Marwan, Marwan; Syamsuddin, Yanna; Suriaini, Nanda
REACTOR: Journal of Research on Chemistry and Engineering Vol. 5 No. 1 (2024)
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v5i1.126

The synthesis of acetins from glycerol is achieved through esterification assisted by a solid acid catalyst and microwave irradiation. Diacetin and triacetin, suitable as biofuel additives, are produced using biogenic silica from bamboo leaves, which is chemically activated with strong acid and calcined. No research has utilized silica catalysts derived from bamboo leaf ash to produce diacetin and triacetin. This study aims to employ bamboo leaf-based heterogeneous catalysts to enhance triacetin selectivity, simplify product purification and separation, and enable catalyst reuse. Furthermore, microwave application can accelerate the reaction time. The best total selectivity for diacetin and triacetin was obtained under operating conditions of 3% catalyst concentration, a 1:6 molar ratio, and 60 minutes of microwave irradiation. The yields of diacetin and triacetin under these conditions were 65.80% and 18.70%, respectively. GC-MS and FTIR analysis confirm the presence of monoacetin, diacetin, and triacetin, with a total selectivity for diacetin and triacetin of 84,50%.

Pengenalan Dan Pelatihan Proses Pembuatan Balsam Cair Di Gampong Lubok Sukon Kecamatan Ingin Jaya, Kabupaten Aceh Besar Sofyana, Sofyana; Mairiza, Lia; Razi, Fachrul; Mulana, Farid; Suriaini, Nanda
PESARE: Jurnal Pengabdian Sains dan Rekayasa Vol 2, No 2 (2024): Juni 2024
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/pesare.v2i2.38865

This training activity aims to enhance the knowledge, insights, and skills of the community regarding external medicines, specifically the skills to make liquid balm that is beneficial for health. Additionally, this activity aims to foster entrepreneurial interest among the community through home-based businesses that can increase family income. The activity is centered in Lubuk Sukon Village, Ingin Jaya District, Aceh Besar Regency. The targets of this training activity are housewives and teenage girls who spend most of their time taking care of their households and families. To facilitate this training activity, brochures about the materials and procedures for making balm, the ingredients used, introductory theory, and tips for making balm were distributed to the target community. Furthermore, demonstrations and hands-on practice in making balm were provided, resulting in products that can be used personally or become a business idea.

Effect of Solid to Solvent Ratio and Extraction Time on Yield, Phytochemical Content and Physicochemical of Amla (Phyllanthus emblica) Seed Oil Extracted using Hexane Mauliza, Nadia Putri; Suriaini, Nanda; Rosnelly, Cut Meurah; Satriana, Satriana; Supardan, Muhammad Dani
Jurnal Rekayasa Kimia & Lingkungan Vol 17, No 2 (2022): Jurnal Rekayasa Kimia & Lingkungan (December, 2022)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v17i2.26915

Amla (Phyllanthus emblica) seeds have only been disposed of as waste and have not been utilized optimally. Utilizing the seeds to produce oil has been regarded as a promising approach for reducing solid wastes and producing value-added products. This study evaluated the effect of solid to solvent ratio and extraction time on yield, phytochemical content and physicochemical of oil extracted from amla seed using hexane as a solvent. The amla seed oil was extracted through the solid-liquid process at different solid to solvent ratios (1:20, 1:25 and 1:30 g/mL) and extraction times (30, 60, 90 and 120 minutes). The highest yield found was 10.97% at a solid to solvent ratio of 1:30 (g/mL) and an extraction time of 120 minutes. The highest concentrations of phenolic compounds and flavonoids were 66.12 mg GAE/g and 95.70 mg QE/g respectively, obtained at a solid to solvent ratio of 1:25 (g/mL) and extraction time of 120 minutes. Physicochemical analysis (pH, density, acid number, free fatty acid, and peroxide number) showed that the quality of extracted oil was better than what the previous study reported. In the amla seed oil, the content of unsaturated fatty acids was higher than saturated fatty acids with linoleate as the main component. These results clarified that solid-liquid extraction method can be used for extracting amla seed oil and also indicated that amla seed oil can be used as an ingredient in health-related industry products.

Purification of Biodiesel from Waste Cooking Oil Using Bentonite as Dry Washing Agent Suriaini, Nanda; Febriana, Tika Thalia; Yulanda, Andesta; Adisalamun, Adisalamun; Syamsuddin, Yanna; Supardan, Muhammad Dani
Jurnal Rekayasa Kimia & Lingkungan Vol 14, No 2 (2019): Jurnal Rekayasa Kimia & Lingkungan (December, 2019)
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v14i2.13165

The process of biodiesel purification is an important step in getting biodiesel products that meet specifications as a substitute for fossil-based fuels. Dry washing method has been developed to achieve an effective purication strategy in order to produce high-quality biodiesel. Bentonite can be used as dry washing agent because it has a good adsorbing properties as well as a large pore and surface area therefore can attract polar substances such as glycerol and methanol. The purpose of this research is to know the capability of activated bentonite as dry washing agent for purification of biodiesel produced from waste cooking oil. The activation process of bentonite was carried out using sulfuric acid with concentration 1.5 M. Characterization of the bentonite was conducted using X-Ray Diffraction (XRD) for minerals content and BrunauerEmmettTeller (BET) method for surface area. Bentonite was used as dry washing agent for biodiesel purification by varying washing time (10, 20, 30, 40 and 50 minutes) and adsorbent amount (1, 2, 3, 4 and 5%). The experimental results showed that purification of biodiesel by dry washing using activated bentonite resulted in a better yield and quality than wet washing and dry washing using non-activated bentonite, except the acid number. The best operation condition resulted from this research is at 10 minutes washing time and 1% adsorbent with yield of 94.1%; acid number of 0.4208 mg KOH/gram; density of 0.8838 gram/cm3, viscosity of 3.0617 mm2/s and water content of 1.17%.

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