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All Journal JURNAL KIMIA SAINS DAN APLIKASI Buletin Penelitian Tanaman Rempah dan Obat Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Kimia dan Kemasan WARTA Jurnal Teknologi Bahan Alam Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ JKPK (Jurnal Kimia dan Pendidikan Kimia) Buletin Penelitian Tanaman Rempah dan Obat Jurnal Kimia dan Kemasan Prosiding University Research Colloquium Jurnal Teknik Indonesia Bulletin of Chemical Reaction Engineering & Catalysis
Eni Budiyati
Department Of Chemical Engineering, Faculty Of Engineering
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Environmental Science Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Social Sciences Transportation Other

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Peningkatan jiwa entrepreneurship bagi siswa SMK Eni Budiyati
Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Vol 4, No 3 (2021): Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS)
Publisher : University of Islam Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33474/jipemas.v4i3.11270

Abstract

The productive unemployment rate in Central Java is quite high, of which 13.5% are vocational graduates. Entrepreneurship can be a solution to reduce productive unemployment. However, to run entrepreneurship requires strong interest and motivation. This community service is carried out to increase the entrepreneurial spirit of students at SMK Muhammadiyah 4 Surakarta. The implementation stages include analysis of partner problems, data collection, presentation and training, filling out post-socialization questionnaires, and evaluating the results of the implementation. Tips and tricks, challenges and obstacles, the importance of motivation in entrepreneurship are the main material presented in the presentation. In the training, students make business plans based on their individual choices. The percentage of consideration in the business field choosing is dominated by the suitability of majors in SMK (about 40%) and the trend that is developing (20%). While, the reasons for the suitability of hobbies, family background and others are 18%, 14%, and 8%, respectively. The students' understanding and interest in entrepreneurship increased significantly. This increase can be seen from the change in the percentage of students' plans after graduation. The number of students who wish to work in agencies or companies is around 70% (before socialization) and about 30% (after socialization). The number of students interested in entrepreneurship increased from 15% to 68%. These results show that the students' interest has shifted from "becoming an employee" to "becoming an entrepreneur".
PENINGKATAN KAPASITAS PRODUKSI PERAJIN BATIK TULIS HUNIAN TETAP PAGER JURANG CANGKRINGAN, SLEMAN, YOGYAKARTA Novi Caroko; Wahyudi Wahyudi; Ali Minanto; Eni Budiyati
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 6, No 5 (2023): martabe : jurnal pengabdian kepada masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v6i5.1816-1825

Abstract

Mitra pengabdian masyarakat ini adalah perajin batik Serat Merapi yang berdiri sejak tahun 2013. Proses identifikasi permasalahan yang ditemui dan dihadapi oleh mitra telah disepakati bersama terdapat dua masalah utama, yaitu aspek produksi dan aspek pemasaran. Secara umum tujuan dari program ini adalah peningkatan dan perbaikan usaha mitra dalam aspek produksi dan pemasaran. Metode pelaksanaan kegiatan dilakukan dengan pemberdayaan masyarakat (participatory rural appraisal). Prosedur kerja kegiatan terdiri dari persiapan, sosialisasi, serta penyelesaian masalah mitra dalam aspek produksi, dan manajemen.Dilanjutkan dengan evaluasi bersama, serta terakhir pelaporan dan publikasi. Hasil pengabdian yang dilakukan untuk meningkatkan produktivitas batik tulis melalui penggunaan kompor listrik mampu meningkatkan antusiasme semua anggota kelompok batik tulis Serat Merapi. Penyuluhan dan demonstrasi alat mudah diikuti dan dipahami oleh semua anggota Serat Merapi. Hasil analisis biaya menunjukkan bahwa adanya penghematan dalam penggunaan kompor listrik dibandingkan dengan kompor minya tanah. Kebutuhan biaya dalam satu bulan untuk kompor listrik hanya sebesarRp 58.410,00 sedangkan untuk kompor minyak tanah sebesar Rp255.000,00. Selain itu, kelebihan yang ada pada kompor listrik adalahkemampuannya disesuaikan dengan daya listrik rumah produksi, terdapat pengatur suhu optimal lilin (malam), lilin lebih cepat mencair, dan kualitas lilin yang dihasilkan cukup baik. Hasil pengabdian yang dilakukan dapat dikatan berhasil, terutama karena memberikan tambahan pengetahuan dan penerapan teknologi pada kelompok batik tulis serat merapi.
Synthesis and Characterization of Gambas (Luffa acutangula) Peel–Based Bioplastic Reinforced by Silica Jasmine Rahma Kesuma Nirvana; Eni Budiyati; Akida Mulyaningtyas
Jurnal Kimia Sains dan Aplikasi Vol 26, No 4 (2023): Volume 26 Issue 4 Year 2023
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.26.4.151-159

Abstract

Gambas (Luffa acutangula) plants contain a relatively high carbohydrate of 68.2%, whereas its peel contains 38.94% of carbohydrates and 20.6% of fibers. Gambas peels are rarely utilized and are typically discarded as food waste. Silica can be used as a filler and reinforcement material to improve the physical and mechanical properties. This study discussed synthesizing and characterizing bioplastics from Gambas peel reinforced by silica using polyvinyl alcohol (PVA) as a plasticizer with a mass of 8 g and 9 g and vinegar as a compatibilizer with volumes of 7 mL and 8 mL. The gelatinization temperature was adjusted at 85°C and 95°C. The synthesized bioplastics have improved mechanical characteristics due to the addition of PVA. The addition of vinegar as a compatibilizer revealed a homogenous mixture in surface morphological analysis. The highest performance of bioplastic samples was obtained from sample 7 with 8 mL vinegar, 9 g of PVA, and at 85°C of gelatinization temperature. The results showed that the maximum tensile strength reached 0.034 N/mm2, the elongation was 225%, the value of Young’s modulus was 0.015 N/mm2, the thermal stability reached 74.34% weight loss by heating up to 400°C, and the melting temperature reached at 220°C, the absorption of water was 37.61%, and the weight loss was 20.3% after ten days of soil burial.
Edukasi “Pupuk Kodomo” Limbah Kotoran Domba dengan Media Larva BSF di Bamboe Koening Farm Budiyati, Eni; Mustofa, Malik; Mulayningtyas, Akida; Pratama, M Rizki Abid; Fatimah, Lutfia Bunga; Puspita Sari, Fera Nur; Chanifah, Amirul; Somantri, Muhammad Aufa Fakhry
Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Vol 11 No 2 (2024): Mei
Publisher : Lembaga Penelitian, Penerbitan dan Pengabdian Masyarakat (LP3M) UNSIQ

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32699/ppkm.v11i2.6579

Abstract

The community service activity "Pupuk Kodomo" program is carried out to provide a problem solving regarding the processing of livestock manure waste that has not been optimally utilized. In overcoming this problem, Bamboe Koening Farm (as a partner) was educated about processing livestock manure waste using Black Soldier Fly (BSF) larvae as a decomposing agent in bioconversion. The stages of implementation include surveys and partner situation analysis studies, socialization of the "Pupuk Kodomo" program, training and program assistance, education from an economic review and product marketing, periodic monitoring of "Pupuk Kodomo" program activities, and evaluation of implementation results. The results of community service activity changed the habits of sheep goat farmers in the Sukoharjo area to be more innovative, they optimally processed livestock manure waste into a valuable product, namely "Pupuk Kodomo" Maggot media sheep dung fertilizer. The sales of "Pupuk Kodomo" can improve the economy of goat sheep farmers in the Sukoharjo area. In addition, "Pupuk Kodomo" contains phosphorus pentoxide (0.98%) and potassium oxide (1.43%), this shows that the content of "Pupuk Kodomo" is higher than conventional compost fertilizer which contains phosphorus pentoxide (0.69%) and potassium oxide (0.93%) so that "Pupuk Kodomo" can compete in the market.
Study on Varied Bagasse Fiber and Epoxy Resin Compositions with Rice Bran Filler to Biocomposite Characteristics Budiyati, Eni; Saputri, Fauzia Zeinandi; Prasasti, Radeva Intan Kurnia; Elwin, Muhammad Rishad
JKPK (Jurnal Kimia dan Pendidikan Kimia) Vol 9, No 1 (2024): JKPK (Jurnal Kimia dan Pendidikan Kimia)
Publisher : Program Studi Pendidikan Kimia FKIP Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/jkpk.v9i1.72587

Abstract

Natural fibers, with environmental, economic, and cost advantages, are highly sought-after for biocomposite materials. In the present study, the biocomposite samples of epoxy resin (as a matrix), bagasse fiber (as reinforcement), and rice bran (as a filler) were prepared. Tensile strength, strain, and Young's modulus will be the parameters concerning which the quality of the biocomposite can be tested. On the one hand, bagasse fiber is to be a strength enhancer in the resulting biocomposite. On the other hand, rice bran may increase the biocomposite's density. The process research comprises fiber yarn from milled bagasse, alkalized fiber with KMnO4, specimen printing process, and analysis. All the fibers were treated by soaking them in 3 grams of KMnO4 solution for 30 and 45 minutes. The fiber is drained in an oven at 50 °C for ±1.5 hours. The printed fiber onto a specimen mold was printed with a mixture of epoxy resin and rice bran (1:1 w/w) and left for one day. Variation in the fiber mass was at 3, 4, and 5 grams. The sizes of the specimens were similar to the size of the mold according to ASTM D-638 type IV. Then, the fibers were removed from the mold and tested for tensile strength, strain, and Young's modulus. The results show that the greater the fiber mass, the greater the tensile strength value. These findings indicate that the tensile strength was optimized after soaking for 45 minutes with 5-gram fiber weight, which resulted in the tensile strength of 26.32±0.25 MPa, strain of 9.65±0.14%, Young's Modulus of 3.29±0.05 MPa, and water absorption of 41.99%.
PENGARUH PROPORSI PELARUT PADA EKSTRAKSI DAN UJI STABILITAS ZAT WARNA ALAMI DARI UBI JALAR UNGU Dianingrum, Rosita Layla; Budiyati, Eni
Jurnal Teknik Indonesia Vol. 4 No. 1 (2025): Jurnal Teknik Indonesia
Publisher : Publica Scientific Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58860/jti.v4i1.567

Abstract

Zat warna terdiri dari dua kategori, yakni pewarna alami dan pewarna sintetis. Pewarna sintetis kurang aman untuk dikonsumsi jangka panjang, maka dari itu dlakukannya penelitian ini guna untuk meminimalisisr penggunaan sintetis/buatan. Ubi jalar ungu (Ipomoea Batatas L.,) mempunyai sifat polar yang berpotensi dapat diekstrak menggunakan pelarut polar sehingga mengeluarkan kadar antosianin. Ekstraksi dilakukan dengan menggunakan perbandingan pelarut etanol 96%, asam asetat, dan aquades yaitu A(49:1:50) ; B(39:1:60) ; C(29:1:70) ; D(19:1:80) ; E(9:1:90). Penelitian ini terdiri dari dua tahap yang dilakukan. Tahap pertama menggunakan rancangan acak lengkap (RAL) dengan tiga kali pengulangan, dan juga menggunakan Uji Duncan (DMRT). Penelitian tahap dua yaitu, menguji stabilitas antosianin berdasarkan parameter yang diamati antara lain stabilitas antosianin terhadap pH, suhu, serta lama pemanasan
Thermodynamic Study of Chitosan as a Corrosion Inhibitor for Carbon Steel in Chloride Solutions (NaCl and HCl) at Various Temperatures and Concentrations Khafid Ubay Ilyas; Eni Budiyati; Nur Hidayati; Tri Widayatno
Jurnal Kimia Sains dan Aplikasi Vol 27, No 12 (2024): Volume 27 Issue 12 Year 2024
Publisher : Chemistry Department, Faculty of Sciences and Mathematics, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jksa.27.12.569-579

Abstract

This research investigates the thermodynamic characteristics of chitosan as a corrosion inhibitor for carbon steel in chloride electrolyte environments, specifically saturated sodium chloride and 1 M hydrochloric acid, across different temperatures and concentrations. The study aimed to evaluate the effectiveness of chitosan in preventing corrosion and to examine the thermodynamic characteristics of the adsorption process. The results revealed that chitosan achieved the highest inhibition efficiency of 90.07% in a 1 M hydrochloric acid solution with a concentration of 250 mg/L at 303.15 K. In contrast, the maximum inhibition efficiency in a saturated sodium chloride solution was 50.50% at the same concentration of 250 mg/L and 303.15 K. Thermodynamic analysis showed that the adsorption of chitosan is spontaneous and exothermic in both media. The standard free energy of adsorption was found to be -38.63 kJ/mol at 303.15 K, decreasing to -43.69 kJ/mol at 343.15 K in saturated NaCl, and -42.40 kJ/mol at 303.15 K, decreasing to -48.65 kJ/mol at 343.15 K in 1 M HCl. The enthalpy of adsorption was -0.24976 kJ/mol in NaCl and 4.93560 kJ/mol in HCl, while the entropy of adsorption was -0.12661 J/mol·K in NaCl and -0.15610 J/mol·K in HCl. Additionally, the activation energy for corrosion increased from 1.61 kJ/mol at 0 mg/L to 6.96 kJ/mol at 250 mg/L chitosan in NaCl and from 4.10 kJ/mol at 0 mg/L to 23.79 kJ/mol at 250 mg/L chitosan in HCl. SEM analysis confirms the formation of a protective chitosan film, significantly reducing corrosion damage compared to uninhibited conditions. These findings indicate that chitosan is a highly effective corrosion inhibitor with favorable thermodynamic characteristics for applications in chloride-containing environments.
Synthesis of Polyesters from AB Tung Oil-based Polyol Monomers Through Step-growth Polymerization Reactions Budiyati, Eni; Hartini, Hartini; Rochmadi, Rochmadi; Budiman, Arief; Budhijanto, Budhijanto
Bulletin of Chemical Reaction Engineering & Catalysis 2025: BCREC Volume 20 Issue 2 Year 2025 (August 2025)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20338

Abstract

In this study, polyesters synthesized from AB Tung oil-based polyols (TOBPs) monomers via step-growth polymerization reactions. TOBPs are polyols made from Tung oil through a series of hydroxylation and epoxidation procedures. They have hydroxyl (OH) and carboxylic (COOH) functional groups. The polymerization was performed in a three-necked round-bottomed flask (250 mL) equipped with a magnetic stirrer, thermometer, and condenser. It is placed in an oil bath to maintain the reaction temperature. The generated moisture was collected using a vacuum pump. In the meantime, oxygen is being expelled from the reactor by nitrogen. The temperature and stirring speed were kept constant for 6 hours throughout the operation. According to the experiment, 150°C was the ideal temperature for polyesterification. The reaction rate constant rose by 4.73 to 19.99% with the addition of the p-TSA catalyst. The [COOH] and [OH] models were nearly identical to the experimental results, demonstrating the viability of the proposed kinetic model. According to the calculation's findings, polymerization without a catalyst yielded activation energies (Ea) and collision factors (A) of 27.2215 kJ/mol and 16.2965 g.mmol-1.min-1, respectively. Then, polymerization with catalyst decreased Ea and A values, which were around 26.4681 kJ/mol and 14.6746 g.mmol-1.min-1. Copyright © 2025 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
Pengaruh Variasi Konsentrasi Citric Acid terhadap Sifat Fisik Sabun Padat dengan Penambahan Bahan Aktif Licorice Ekstrak (Glycyrrhiza Glabra) Supriatna, Ageng; Budiyati, Eni
Prosiding University Research Colloquium Proceeding of The 20th University Research Colloquium 2025: Bidang Teknik dan Rekayasa
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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

Abstract

Sabun padat adalah campuran natrium dan asam lemak yang berfungsi untuk membersihkan tubuh. Asam sitrat adalah bahan baku sabun penting yang dapat digunakan untuk mengontrol pH sabun karena dapat mengikat logam-logam yang dapat menimbulkan bau tengik pada sabun. Selain itu, mereka dapat berfungsi sebagai bahan pengawet dan mengatur pH. Penelitian ini bertujuan untuk mengetahui bagaimana konsentrasi citric acid (C6H8O7) yang berbeda (1%, 3%, dan 5%) memengaruhi sifat fisik sabun licorice extract yang padat. Konsentrasi citric acid yang digunakan adalah 1%, 3%, dan 5%. Hasil penelitian menunjukkan bahwa variasi konsentrasi asam sitrat tidak berpengaruh pada sifat fisik organoleptik (aroma, bentuk, warna) dan homogenitas sabun, namun memiliki dampak signifikan terhadap pH, kadar air, dan tinggi busa sabun. Karakteristik mutu fisik sabun padat yang dihasilkan memenuhi standar kualitas, yaitu organoleptis berbentuk padat, memiliki aroma wangi dan berwarna kuning. Hasil uji kadar air rata-rata adalah 8,7%, derajat keasaman (pH) rata-rata 9,84, serta ketinggian busa mencapai 5,73 cm.
Pengaruh Variasi Konsentrasi NaOH terhadap Sifat Fisik Sabun Padat dengan Penambahan Bahan Aktif Ekstrak Lidah Buaya (Aloe Barbadensis Leaf Extract) Mudhitasari, Anggit; Budiyati, Eni
Prosiding University Research Colloquium Proceeding of The 20th University Research Colloquium 2025: Bidang Teknik dan Rekayasa
Publisher : Konsorsium Lembaga Penelitian dan Pengabdian kepada Masyarakat Perguruan Tinggi Muhammadiyah 'Aisyiyah (PTMA) Koordinator Wilayah Jawa Tengah - DIY

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

Abstract

Salah satu alat pembersih yang paling umum digunakan oleh semua orang adalah sabun mandi. Terdapat dua jenis sabun yaitu sabun padat dan sabun cair. Sabun padat merupakan alternatif pilihan sabun pembersih yang ekonomis dari segi harga. Sabun yang baik bukan hanya mampu membersihkan kulit dari kotoran, tetapi juga memiliki kandungan zat yang dapat menambah manfaat lebih untuk kulit seperti ekstrak lidah buaya yang dapat membuat kulit lebih lembut karena mengandung lignin. Penelitian ini bertujuan untuk mengetahui pengaruh variasi konsentrasi NaOH terhadap uji mutu fisik sabun padat dengan penambahan bahan aktif ekstrak lidah yaitu uji organoleptis, kadar air, derajat keasaman (pH) dan stabilitas busa. Konsentrasi NaOH yang digunakan adalah 6%, 6,5% dan 7%. Hasil penelitian menunjukkan bahwa konsentrasi NaOH berpengaruh terhadap mutu fisik sabun padat yang dihasilkan. Karakteristik mutu fisik sabun padat yang dihasilkan sesuai persyaratan mutu yaitu organoleptis berbentuk padat, memiliki bau wangi dan berwarna kuning, hasil uji kadar air rata-rata 6,7%, derajat keasaman (pH) rata-rata 10,15 serta stabilitas busa rata-rata 93,03%.
Co-Authors Ali Minanto Angga Fredo Nugroho Arief Budiman Budhijanto Budhijanto Budhijanto Budhijanto, Budhijanto Chanifah, Amirul Darari Nurahlina Dianingrum, Rosita Layla Eko Nurjannah Elwin, Muhammad Rishad Fatimah, Lutfia Bunga Hartini Haryanto Haryanto Jasmine Rahma Kesuma Nirvana Khafid Ubay Ilyas Muchlison Anis Mudhitasari, Anggit Mulayningtyas, Akida Mulyaningtyas, Akida Mustofa, Malik Nita Zul Arsyi Novi Caroko Nur Hidayati Panut Mulyono Prasasti, Radeva Intan Kurnia Pratama, M Rizki Abid Puspita Sari, Fera Nur Ristiana Fauziati Rochmadi Rochmadi Rochmadi Rochmadi Saputri, Fauzia Zeinandi Somantri, Muhammad Aufa Fakhry Supriatna, Ageng Suryo Purwono Tri Widayatno Vicka Haningtyas Wahyudi, Wahyudi