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OPTIMALISASI SIFAT MEKANIK SERAT ALAM DARI SERBUK KAYU ULIN MELALUI TEKNIK PENGERINGAN SEBAGAI PENGUAT MATERIAL BIOKOMPOSIT ANJUNGAN KAPAL Purwanto Purwanto; Erwin Sutantyo; Heri Kiswanto; Khoirotun Nafillah; Rifki Arya Wiguna; Arif Rakhman Suharso
Construction and Material Journal Vol. 5 No. 2 (2023): Construction and Material Journal Vol. 5 No. 2 Juli 2023
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/cmj.v5i2.5699

Ironwood (eusideroxylon zwageri) is a type of wood that has great potential for industrial development. Currently, forest exploitation activities and the wood industry produce 30%-60% solid wood waste and have not been utilized optimally. One way to use it is to make composite materials. The purpose of this study was to determine the most optimal drying technique of ironwood powder, to provide information on the morphology, content and functional groups as well as the mechanical strength of the biocomposite with a volume fraction ratio. The ironwood powder samples in this study were characterized using the SEM-EDX, FTIR, and Vickers hardness tests. The results of the SEM test obtained information that the morphology of all samples had similarities, namely the surface was rough and the measured diameter of the sample ranged from 50-100 Âµm. While the EDX test obtained information that all samples had high carbon and oxygen content. The FTIR test results showed that ironwood powder had a cellulose content as evidenced by the absorption peaks and chemical bonds that were the same as pure cellulose. The results of the mechanical test on the biocomposite showed that sample C had the highest average HV value of 13.3 N/m2, while sample E had an average HV value of 12.26 N/m2 below the HV value of sample E. Meanwhile, sample A obtained the lowest hardness value with an average HV 5.93 N/m2.

KARAKTERISASI DAN STUDI SINERGI ANALOG KURKUMIN DARI SENYAWA 4-METOKSIBENZALDEHIDA SEBAGAI ANTIDIABETES DENGAN METODE IODIN (CHARACTERIZATION AND SYNERGY STUDY OF CURCUMIN ANALOGS FROM 4-METHOXYBENZALDEHYDE COMPOUND AS AN ANTIDIABETIC USING IODINE METHOD) Khoirotun Nafillah; Chairil Anwar
Indonesian Journal of Pure and Applied Chemistry Vol 6, No 3 (2023)
Publisher : Tanjungpura University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/indonesian.v6i3.67301

Curcumin is the main component of turmeric with various biological activities, one of which is antidiabetic. However, curcumin has low bioavailability and fast metabolism, so repeated doses are required if used as a medicine. Curcumin analogs have better bioavailability than curcumin. This study aims to synthesize curcumin analog from 4-methoxybenzaldehyde and monoketone (cyclohexanone and cyclopentanone), and their synergism effect using iodine method. The compounds A and B have been synthesized using Claisen-Schmidt condensation from benzaldehyde derivatives using KOH 8% and ethanol as solvent. The results showed that the curcumin analogs A and B were yellow solids with yields of 31,13% and 31,87%, respectively. The structure of products was characterized by FTIR, DI-MS, 1H- and 13C-NMR, showed that curcumin analogs A is 2,6-bis(4-methoxybenzylidene)cyclohexanone and curcumin analogs B is 2,6-bis(4-methoxybenzylidene)cyclopentanone. α-amylase inhibition assay of curcumin analogs A and B were performed by formation of amylum-iodine complex with UV-vis spectrophotometer at wavelength of 600 nm, showed that 33,03% and 91,5% at concentration 1 mM. Synergy studies with ferulic acid indicated that compound A 99,23% at a concentration ratio (1:8) and B 99,14% (1:4). This indicates a synergy between curcumin analogs and ferulic acid as an inhibitor of the α-amylase.

PELATIHAN PEMBUATAN CAIRAN ECO ENZYME DARI LIMBAH ORGANIK DI PERUMAHAN AYODYA SEMARANG Khoirotun Nafillah; Helena Ariyani; Ahmad Umam Aufi; Juwarlan Juwarlan; Heri Kiswanto
BUDIMAS : JURNAL PENGABDIAN MASYARAKAT Vol 6, No 1 (2024): BUDIMAS : Jurnal Pengabdian Masyarakat
Publisher : LPPM ITB AAS Indonesia Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29040/budimas.v6i1.12848

Pengelolaan sampah yang belum maksimal menjadi tugas utama untuk segera diselesaikan, terutama dari skala terkecil yaitu limbah rumah tangga. Berbagai upaya dilakukan dalam rangka melindungi bumi, salah satunya adalah memanfaatkan kembali potensi limbah organik dalam rumah tangga menjadi berbagai produk multiguna, berprinsip green chemistry, dan bernilai ekonomi. Eco enzyme adalah cairan hasil fermentasi dari bahan-bahan sederhana, seperti gula merah, limbah organik, dan air. Tujuan kegiatan ini adalah melakukan pelatihan pembuatan eco enzyme dari limbah organik menjadi barang multiguna, salah satunya sebagai pupuk cair. Mitra kegiatan pengabdian ini adalah komunitas ibu-ibu PKK warga perumahan Ayodya, desa Sekaran, Gunungpati, Semarang. Metode yang dilakukan adalah FGD (Forum Group Discussion) dan demonstrasi pelatihan pembuatan eco enzyme sebagai pupuk cair. Hasil dari kegiatan ini adalah meningkatnya pengetahuan masyarakat terkait pembuatan eco enzyme sebagai pupuk cair. Kegiatan ini penting dilakukan untuk mengelola limbah organik dan memberikan kontribusi nyata yaitu melindungi bumi dari pencemaran lingkungan. Kata kunci: Eco Enzyme, Limbah Organik, Green Chemistry, Pupuk Cair

The Development of SETS-Based E-Modules for Industrial Chemistry According to IMO Model Course 7.04 Fajar Sari Kurniawan; Khoirotun Nafillah; Rahindra Bayu Kumara
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol 6, No 2 (2024): OCTOBER 2024 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jipk.v6i2.64264

The era of Industrial Revolution 4.0 encourages universities to utilize information technology. Learning industrial chemistry courses in maritime education is still conventional, with little time allocation. Apart from that, no digital-based learning resources comply with the IMO 7.04 standard. This research aims to develop a SETS (Science, Environment, Technology, and Society) based e-module Website for the Industrial Chemistry course according to IMO 7.04 standards, as well as analyze the feasibility of the product. This research method is R&D (Research & Development) using the ADDIE model but is limited to the development stage. Quantitative data is processed into interval data using a Likert scale. The research results show that the validation of material experts is 87.89% in the very valid category, and media experts are 91.67% in the very valid category. Limited trials on students showed a positive response 90.13% in the very good category. It is hoped that the development of this e-module can improve the quality of learning in maritime education.

The Development of ChemicoMine, Maritime Chemistry Comic Webtoon as an Edutainment Media Accordance to the IMO Regulations Nafillah, Khoirotun; Sari, Dhesi Wulan; Purwanto, Purwanto
Jurnal Pendidikan Kimia Indonesia Vol. 8 No. 2 (2024)
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23887/jpki.v8i2.82417

Based on the IMO Model Course 7.04 curriculum, chemistry is an introductory course that a candidate for sailor must master. However, most abstract chemistry concepts require technology-based learning media and edutainment. Webtoon is a digital comic that presents the concept of chemistry through real-life visualization strategies to attract student interest. This research aimed to create ChemicoMine, a maritime chemistry comic webtoon whose material content follows IMO regulations. The research method is R&D with the ADDIE model, which is limited to the Development stage. The instruments used in this research were analyst instruments of necessity, the validation tools of storyboard, the instrument validated by an expert in media and material, and the instrument for students. The data analysis techniques used the Likert scale 5. Validation results from an expert in material and media stated that the product received a percentage rating of 87.66% and 95.28% with the category (very good). Student response results obtained percentage of rating of 88.94% with the category (very good). Based on the results, ChemicoMine received a positive student response and can be used as an alternative edutainment media.

Development of a Guided Inquiry-Scientific Laboratory (GISL) Based Health Chemistry Practicum Module Nafillah, Khoirotun
IJCER (International Journal of Chemistry Education Research) VOLUME 8, ISSUE 2, OCTOBER 2024
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol8.iss2.art8

Chemistry practicum learning requires a comprehensive approach, which improves understanding of concepts and develops various essential skills needed in the professional and academic world. This research aims to develop a Guided Inquiry-Scientific Laboratory-based Health Chemistry module and conduct empirical feasibility tests. This module is designed with a guided inquiry approach integrated with scientific methods in laboratory activities. The practicum module was developed for second-grade vocational school students in health expertise with material covering colloids, hydrocarbons, polymers, biomolecules, and chemical separation. This development research uses the Borg and Gall model, which consists of planning, organizing, implementing, assessing, and analyzing data. This research was only carried out to the validation stage by material experts, media experts, peer reviewers, and reviewers (five Health Vocational School teachers). The assessment carried out by the reviewer includes eight assessment aspects with 30 assessment indicators. Data was collected through questionnaires, observations, and interviews. Data analysis was carried out descriptively, quantitatively, and qualitatively, guided by ideal assessment criteria to determine the quality of the practicum module. The research results show that the Guided Inquiry-Scientific Laboratory (GISL) based Health Chemistry practicum module that has been developed has a score of 132.52 with an ideal percentage of 88.3467% in the very good (SB) category. This indicates that this module is suitable for use in health chemistry practicum learning, and it is hoped that this research can be continued at the next stage.

The Development of SETS-Based E-Modules for Industrial Chemistry According to IMO Model Course 7.04 Fajar Sari Kurniawan; Khoirotun Nafillah; Rahindra Bayu Kumara
Jurnal Inovasi Pembelajaran Kimia (Journal of Innovation in Chemistry Education) Vol. 6 No. 2 (2024): OCTOBER 2024 EDITION
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar

The era of Industrial Revolution 4.0 encourages universities to utilize information technology. Learning industrial chemistry courses in maritime education is still conventional, with little time allocation. Apart from that, no digital-based learning resources comply with the IMO 7.04 standard. This research aims to develop a SETS (Science, Environment, Technology, and Society) based e-module Website for the Industrial Chemistry course according to IMO 7.04 standards, as well as analyze the feasibility of the product. This research method is R&D (Research & Development) using the ADDIE model but is limited to the development stage. Quantitative data is processed into interval data using a Likert scale. The research results show that the validation of material experts is 87.89% in the very valid category, and media experts are 91.67% in the very valid category. Limited trials on students showed a positive response 90.13% in the very good category. It is hoped that the development of this e-module can improve the quality of learning in maritime education.

Edukasi Pemanfaatan Sampah Organik sebagai Bahan Baku Hand Sanitizer di SMK Pelayaran Wira Samudera Semarang Nafillah, Khoirotun; Ariyani, Helena; Nindita, Kirtyana; Kiswanto, Heri; Asfirah, Lia
Abdimas Awang Long Vol. 8 No. 2 (2025): Juni, Abdimas Awang Long
Publisher : Sekolah Tinggi Ilmu Hukum Awang Long

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56301/awal.v8i2.1558

Kuantitas sampah di bumi semakin meningkat seiring dengan banyaknya aktivitas manusia. Sampah organik, yang sering dihasilkan dari limbah rumah tangga, merupakan sampah yang paling melimpah. Pembusukan sampah organik menghasilkan gas berbahaya yang dapat mencemari lingkungan. Namun, sampah organik juga dapat dimanfaatkan kembali menjadi cairan eco enzyme, yaitu cairan fermentasi yang memiliki banyak fungsi, salah satunya sebagai hand sanitizer. Tujuan kegiatan ini adalah memberikan edukasi tentang pemanfaatan sampah organik sebagai bahan baku hand sanitizer ramah lingkungan di SMK Pelayaran Wira Samudera Semarang. Kegiatan pengabdian ini terdiri dari tiga tahapan yaitu tahap pra proposal, pasca proposal, kegiatan inti, dan evaluasi. Hasil kegiatan menunjukkan bahwa terdapat peningkatan wawasan/pengetahuan peserta terhadap pembuatan hand sanitizer ramah lingkungan. Kegiatan ini diharapkan dapat memberikan solusi praktis dalam pengelolaan sampah organik dan membentuk karakter siswa untuk peduli terhadap kebersihan dan kelestarian lingkungan. Secara keseluruhan, kegiatan pengabdian mendapat respon positif oleh peserta. Koordinasi dari berbagai pihak sangat dibutuhkan agar pembuatan hand sanitizer ramah lingkungan ini dapat diproduksi dalam skala yang lebih besar dan memiliki nilai jual yang menjanjikan.

OPTIMIZING PLANNING AND INVENTORY CONTROL TO SUPPORT TRAINING PROGRAMS IN GOODS AND SERVICES Asfirah, Lia Retian; Khoirotun Nafillah; Widanto Mukti Adi; Novita Widyaningrum; Niken Devi Rosita
LOGISTIK Vol. 18 No. 01 (2025): Logistik
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/logistik.v18i02.55270

Perencanaan dan pengendalian persediaan barang dan jasa merupakan aspek krusial dalam mendukung keberhasilan penyelenggaraan pendidikan dan pelatihan (diklat), khususnya dalam institusi pemerintahan atau pendidikan vokasi. Penelitian ini bertujuan untuk menganalisis secara mendalam proses perencanaan dan pengendalian persediaan barang dan jasa dalam penyelenggaraan diklat, dengan fokus pada ketersediaan perlengkapan peserta seperti seragam, alat tulis kantor (ATK), dan modul pembelajaran. Metode yang digunakan adalah pendekatan kualitatif deskriptif melalui wawancara, observasi, dan studi dokumentasi terhadap tujuh informan kunci yang terlibat langsung dalam proses perencanaan dan pengadaan. Hasil penelitian menunjukkan bahwa sering terjadi ketidaksesuaian antara jumlah peserta dengan perlengkapan yang tersedia, yang disebabkan oleh tidak adanya sistem prediksi kebutuhan yang memadai, keterlambatan dalam pengadaan, serta rotasi penyedia barang/jasa yang tidak konsisten. Selain itu, keterbatasan sumber daya manusia (SDM) yang memiliki sertifikasi dan kemampuan teknis dalam bidang pengadaan juga menjadi kendala utama. Penelitian ini merekomendasikan penerapan sistem perencanaan yang terintegrasi, pemilihan rekanan tetap, serta peningkatan kompetensi SDM melalui pelatihan dan sertifikasi. Dengan sistem perencanaan dan pengendalian yang optimal, diharapkan kebutuhan peserta diklat dapat terpenuhi secara tepat waktu dan efisien, sekaligus meningkatkan kepuasan dan kualitas penyelenggaraan diklat secara keseluruhan.

Synthesis of Asymmetric Curcumin Analogue (2,6)-2-(3-bromo-4-methoxybenzylidine)-6-(3,4-dimethoxybenzylidine)cyclohexanone with a Base Catalyst Nafillah, Khoirotun; Ekawati, Linda; Purwanto, Purwanto
Indonesian Journal of Chemical Research Vol 13 No 2 (2025): Edition for September 2025
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2025.13-kho

Curcumin analogs are phenolic secondary metabolites that are more stable than curcumin because they do not contain active methylene groups. Generally, these compounds have a symmetric structure, while asymmetric curcumin analogs with higher frequency and potency are rarely synthesized. This study aimed to synthesize asymmetric curcumin analogs from 2-(3,4-dimethoxybenzylidene)cyclohexanone and bromoanisaldehyde. The synthesis was conducted using the Claisen-Schmidt condensation method with a base catalyst in ethanol at 25 °C for 12 hours. The intermediate compound available in the laboratory was characterized using GC-MS, showing a molecular ion (M⁺) at m/z 246. Meanwhile, bromoanisaldehyde was characterized by GC-MS and FT-IR, yielding a molecular ion at m/z 215 and a C–Br stretching vibration peak at 812 cm⁻¹. The study yielded a yellow solid weighing 0.13 g (yield percentage: 2.93%) with a melting point of 143-147 °C. UV-Vis, FT-IR, and HR-MS analysis confirmed the successful synthesis and characterization of the asymmetric curcumin analog, as evidenced by the molecular ion (M⁺) at m/z 443.06274 in the HR-MS spectrum. However, further analysis, such as ¹H-NMR and ¹³C-NMR, is needed to confirm the structure of the compound. Furthermore, research related to bioactivity testing is crucial for obtaining more stable and effective drug candidates.

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