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All Journal VALENSI JURNAL KIMIA SAINS DAN APLIKASI The Journal of Pure and Applied Chemistry Research Jurnal Riset Kimia Science and Technology Indonesia Indonesian Journal of Chemistry PRIMA: Journal of Community Empowering and Services Molekul: Jurnal Ilmiah Kimia Bulletin of Chemical Reaction Engineering & Catalysis
Maulidan Firdaus
Department Of Chemistry, Faculty Of Mathematics And Natural Sciences, Sebelas Maret University, Jl. Ir. Sutami 36A Surakarta 57126
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Engineering Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology Physics

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Synthesis and Characterization of Anethole-lauryl Methacrylate Copolymer via Cationic Polymerization Handayani, Desi Suci; Tahara, Alfia Uke; Firdaus, Maulidan; Suryanti, Venty; Kusumaningsih, Triana; Marliyana, Soerya Dewi; Wibowo, Fajar Rakhman; Wartono, Muhammad Widyo
Molekul Vol 18 No 3 (2023)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2023.18.3.7078

Abstract

The synthesis of anethole-lauryl methacrylate (LMA) copolymer had been carried out by cationic polymerization using BF3O(C2H5)2 as the initiator without the use of solvent at room temperature (28-30 °C) over atmospheric N2 conditions. Polymerization was conducted by varying LMA concentration i.e. 2%, 4%, and 6%, (w/w) with respect to the anethole weight. Structural determination of co-poly(anethole-LMA) was done using FTIR and 1H-NMR spectrophotometer. The relative molecular weight (Mv) of co-poly (anethole-LMA) was measured by an Ostwald Viscometer at room temperature. Morphological characterization and surface area analysis of co-poly(anethole-LMA) was performed using SEM and SAA, respectively. The successful synthesis of co-poly(anethole-LMA) was proven by the disappearance of vinyl group absorption at 1696, 1638, 965, and 938 cm-1 of the FTIR spectra, as well as the loss of vinyl group proton signals at 6.4-5.5 ppm in the 1H-NMR spectra. Increasing the weight of the LMA affected the characteristics of co-poly(anethole-LMA). The relative molecular weight of co-poly(anethole-LMA) was found to rise by increasing the weight of LMA. The Mv of co-poly(anethole-LMA) 2%, 4%, and 6% were 32378.62, 50611.05, and 65133.79 g/mol, respectively. The morphology of co-poly(anethole-LMA) showed that the surface distance between particles was getting tighter and the highest surface area in co-poly(Anethole-LMA) 6% was 233.80 m2/g.
In Silico and In Vivo Studies of Carboxymethyl Cellulose Based Hydrogels from Cassava Stem and Young Papaya Seed Extract for Diabetic Wounds Rahmawati, Risma; Lestari, Annisa Firda; Anggraini, Putri Regita; Safitri, Rahmadita Irma; A'yunin, Alfi Rizki; Firdaus, Maulidan
Molekul Vol 19 No 2 (2024)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2024.19.2.7286

Abstract

ABSTRACT. Diabetic chronic wound care remains a global challenge due to higher rates of infection leading to amputations and death. The development of wound dressing materials with good biocompatibility, adequate mechanical strength, high absorption, and anti-inflammatory and antibacterial properties are criteria for ideal wound dressings in clinical applications. This study aimed to prepare hydrogel plasters based on carboxymethyl cellulose (CMC) from cassava stems (Manihot esculenta C.) with the addition of an active substance from young papaya seeds (Carica papaya L.) for diabetic wound healing. The methods used included CMC synthesis, extraction of young papaya seeds, preparation of nanoparticles, hydrogel optimization using Response Surface Methodology (RSM), in silico study, and in vivo tests. All products for each stage were characterized by FTIR and XRD. Hydrogels were characterized by testing pH, organoleptic, swelling ratio, gel fraction, biodegradability, FTIR, and SEM. The results of RSM optimization obtained hydrogel with the formula Na-CMC 3%, citric acid 2%, and stirring temperature 70. Based on the in-silico test results, the apigenin compound has the lowest binding energy, namely -9.4 kcal/mol, so it has the potential to heal diabetic wounds by triggering angiogenesis through the VEGFR2 signal. In vivo test results showed that the hydrogel with the addition of young papaya seed extract had the fastest wound healing rate compared to other treatments, marked by 100% wound closure on the 10th day. Keywords: carboxymethyl cellulose, cassava stem, diabetes wound, hydrogel, young papaya seeds.
Green Metrics Evaluation on The Cannizzaro Reaction of p-Anisaldehyde and Benzaldehyde Under Solvent-Free Conditions Firdaus, Maulidan; Firdausi, Nisrina Rahma; Rahmana, Desy Nila; Kusumaningsih, Triana
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.v9i2.35641

Abstract

In the pursuit of environmentally responsible chemical processes, we conducted a thorough assessment of the green metrics associated with the Cannizzaro reaction using p-anisaldehyde and benzaldehyde under solvent-free conditions. This research elaborates the application of two different methods i.e., reflux and ultrasonication, applying potassium hydroxide (KOH) as the reagent. The progress of the Cannizzaro reaction was methodically followed via thin-layer chromatography (TLC), and the resulting products were characterized using various techniques, including melting point analysis, Fourier-transform infrared spectroscopy (FTIR), and gas chromatography-mass spectrometry (GC/MS). To measure the environmental impact and sustainability of these reactions, a multifaceted approach was used. Green metrics were evaluated by the state-of-the-art Environmental Assessment Tool for Organic Syntheses (EATOS) software, combined with the Andraos algorithm. Moreover, energy consumption calculations were evaluated. Reasonable analysis of the green metrics results was undertaken in the framework of prevailing literature, permitting to measure the level of eco-friendliness attained. Experimental findings revealed optimal conditions for the Cannizzaro reaction concerning p-anisaldehyde at a temperature of 50 °C for 90 minutes, resulting in remarkable of p-anisyl alcohol and p-anisic acid in 95.16% and 95.04% yields, respectively. Likewise, the reaction involving benzaldehyde reached its peak performance at 50 °C for 2 hours, giving benzyl alcohol and benzoic acid in 96.17% and 97.22% yields, respectively. Overall, the green metrics assessment and energy consumption calculations reliably confirmed that the solvent-free Cannizzaro reaction, when performed via ultrasonication, offers a reasonably greener and more energy-efficient method than the traditional ones. This research highlights the importance of sustainable chemical synthesis practices and their potential to reduce the environmental footprint of chemical processes.
Labdane Aldehyde Diterpenoids from Curcuma mangga Rhizome Wartono, Muhammad Widyo; Aini, Qurotul; Suryanti, Venty; Firdaus, Maulidan; Rakhman Wibowo, Fajar; Dewi Marliyana, Soerya; Kusumaningsih, Triana; Suci Handayani, Desi
The Journal of Pure and Applied Chemistry Research Vol. 12 No. 3 (2023): September-December 2023
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2023.012.03.694

Abstract

Curcuma mangga val. (Zingiberaceae) is one of the plants that used as traditional medicine by Indonesian. Several studies have been reported on the content of compounds of C. mangga, but it is not yet known which compounds have medicinal properties. In this study, two labdane diterpenes were isolated from the extract of rhizome of C. mangga. Determination of the structure conducted by NMR (1H, 13C, HSQC and HMBC) that obtained two compounds, calcaratarin A (1) and labda-8(17),12-diene-15,16-dial (2). Both compounds have an aldehyde functional group. However, both compounds did not show antibacterial activity on Escherichia coli.
Development and Testing of a Portable Air Purifier with Chemical and UV-C Filtration for Virus and Pollutant Removal Yunita, Ailsa Rahma; Vegasty, Sabella; Izati, Zhahira Nur; Massardi, Adhie; Kusumaningsih, Triana; Firdaus, Maulidan
Jurnal Riset Kimia Vol. 16 No. 2 (2025): September
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v16i2.790

Abstract

COVID-19 has profoundly impacted global health due to its severe respiratory effects. Similarly, respiratory issues are also triggered by pollutants such as O3, SO2, NO2, and CO. In response to these challenges, this study developed a portable air purifier called APMIKAV, incorporating sodium lauryl sulfate, activated carbon, and UV-C light as filter components. APMIKAV fabrication aimed to build a portable air purifier and study its effectiveness in filtering air containing viruses and pollutants into clean air. The APMIKAV utilized a three-stage filtration process that included a surfactant filter for pollutant removal and virus lysis, an activated carbon filter for pollutant adsorption, and a UV-C filter to deactivate viral DNA and RNA. Methods included designing, assembling, and testing. Antiviral testing was carried out with GeNose C19 on patients who tested positive for COVID-19, while air parameters were analyzed using an NDIR analyzer for CO and an air sampling impinger for O3, SO2, and NO2. Test with GeNose C19 showed negative results. Pollutant concentrations post-filtration average efficiency were 98.17%, 68.84%, 49.29%, and 66.34%, for NO2, O3, SO2, and CO, respectively. Overall, the multi-stage filtration process provided a robust solution for enhancing air quality in environments susceptible to both pollution and viral transmission, which confirmed APMIKAV's effectiveness in providing cleaner and safer air.
Manufacturing and Characterization of Bioplastic from Chitosan and Rambutan Seed (Nephelium lappaceum L.) Starch with the Addition of Sorbitol as Plasticizer Kusumaningsih, Triana; Firdaus, Maulidan; Handayani, Desi; Rahayu, Windi Vinata; Vegasty, Sabella; Ningsih, Dyah A F; Istiqomah, Annisa
Science and Technology Indonesia Vol. 10 No. 4 (2025): October
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.4.990-998

Abstract

A bioplastic formulated from chitosan and rambutan seed starch (Nephelium lappaceum L.), with sorbitol added as a plasticizer, presents a promising innovation to reduce the reliance on conventional plastics, which contribute to an annual waste accumulation of 381 million tons. This study aims to produce bioplastic from chitosan and rambutan seed starch, to analyze its physical and mechanical properties, and to determine the optimal composition. The bioplastic was fabricated using the solution casting method, with heating at 85-95◦C and drying in an oven at 60◦C for approximately 24 hours. The resulting bioplastic exhibited favorable tensile strength and elongation, as well as rapid biodegradability in soil. FTIR analysis revealed functional groups including O-H, C-H, N-H, C-O, and C-C, indicating the presence of corresponding components. The best composition was achieved with a starch-to-chitosan ratio of 40:60% and 20% sorbitol, resulting in a thickness of 0.21 mm, density of 0.80 g/cm3, water absorptionof 41.17%, tensile strength of 52.53 N/mm2, elongation of 22.64%, and biodegradability of 36.67%. TGA analysis showed three degradation stages i.e. water dehydration, starch degradation, and chitosan degradation.
Peningkatan Rendemen Minyak Atsiri Melalui Maserasi Awal dengan Metode Ultrasonikasi di Rumah Atsiri Indonesia Firdaus, Maulidan; Suryanti, Venty; Kusumaningsih, Triana; Handayani, Desi Suci; Marliyana, Soerya Dewi; Wibowo, Fajar Rakhman; Wartono, Muhammad Widyo; Karimah, Qosrul; Darmawan, Dhea Afrisa
PRIMA: Journal of Community Empowering and Services Vol 9, No 1 (2025): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/prima.v9i1.86385

Abstract

Enhancing Essential Oils Yield through Initial Maceration using Ultrasonication Method at Rumah Atsiri Indonesia. Metode ekstraksi minyak atsiri yang paling umum digunakan adalah destilasi uap. Pada umumnya, metode destilasi uap banyak digunakan oleh industri kecil termasuk di Rumah Atsiri Indonesia (RAI), karena memiliki beberapa keuntungan, diantaranya pengoperasian yang mudah serta peralatan yang sederhana. Akan tetapi, metode ini juga memiliki beberapa kelemahan, seperti membutuhkan waktu yang cukup lama dan hasil produksi yang kurang optimal. Untuk mengatasi kelemahan tersebut, solusi yang dapat dilakukan adalah melakukan proses destilasi minyak atsiri yang didahului maserasi dengan bantuan ultrasonik. Bekerja sama dengan RAI, Tim Riset Group Natural Products and Synthetic Organic Chemistry Prodi Kimia FMIPA UNS telah melaksanakan Program Pengabdian kepada Masyarakat (PkM). PkM bertujuan memberikan penyuluhan sekaligus praktik mengenai cara destilasi minyak atsiri dengan memulai proses maserasi dan menerapkan teknik ultrasonikasi di RAI. Pendekatan ini bertujuan untuk meningkatkan efisiensi dan hasil proses destilasi dengan menggunakan gelombang ultrasonik untuk membantu memecah bahan tanaman sebelum destilasi. Hal ini memudahkan untuk mengekstrak lebih banyak minyak dan meningkatkan kualitas minyak atsiri secara keseluruhan. Kegiatan dimulai dengan diskusi tentang teori dan aplikasi maserasi awal dengan metode ultrasonikasi. Sesi selanjutnya adalah praktik maserasi awal dengan metode ultrasonikasi sebelum dilakukan destilasi. Luaran dari pelatihan ini adalah adanya peningkatan performa metode destilasi minyak atsiri. Hasil perlakuan ekstraksi awal dengan teknik ultrasonikasi bisa meningkatkan rendemen minyak sereh wangi dari 0,86% menjadi 1,86% atau meningkat 2,2 kali lebih banyak dibandingkan tanpa maserasi awal.
Co-Authors A'yunin, Alfi Rizki Abu Masykur Anas Santria Anggraini, Putri Regita Annisa Istiqomah Annisa Istiqomah, Annisa Annisa Nur Buana Wati Atmanto Heru Wibowo Berlian Ayu Rismawati Sugiarto Chairil Anwar Chairil Anwar Darmawan, Dhea Afrisa Desi Handayani Desi Suci Handayani Desi Suci Handayani Desi Suci Handayani Desy Nila Rahmana Dewi Marliyana, Soerya Diah Fitri Carolina Ema Nur Annisa Fajar Rakhman Wibowo Firdausi, Nisrina Rahma Fyan Tri Istiqomah Juneasri Ichsan Arifagama Izati, Zhahira Nur Jumina Jumina Jumina Jumina Karimah, Qosrul Lestari, Annisa Firda Lina Tri Marfu’ah Massardi, Adhie Meyta Dyah Prameswari Muhamad Widyo Wartono Nestri Handayani Ningsih, Dyah A F Nisrina Rahma Firdausi Qurotul Aini Rahayu, Windi Vinata Rahmana, Desy Nila Rakhman Wibowo, Fajar Reinner Ishaq Lerrick Risma Rahmawati Sabella Vegasty Safira Zidna Salama Safitri, Rahmadita Irma Soerya Dewi Marliyana Surya Dewi Marliyana Tahara, Alfia Uke Triana Kusumaningsih Triana Kusumaningsih Triana Kusumaningsih Triana Kusumaningsih Triana Kusumaningsih Vegasty, Sabella Venty Suryanti Venty Suryanti Venty Suryanti Yunita, Ailsa Rahma Zuhdi Alqowamul Amin Zulfaa Afiifah