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All Journal Jurnal Riset Kimia SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Teknik Kimia dan Lingkungan Komunita: Jurnal Pengabdian dan Pemberdayaan Masyarakat Bulletin of Chemical Reaction Engineering & Catalysis
Irfin, Zakijah
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Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Medicine & Pharmacology Nursing Public Health Social Sciences Other

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Development of a Novel Support Modification for Efficient Lipase Immobilization: Preparation, Characterization, and Application for Bio-flavor Production Moentamaria, Dwina; Irfin, Zakijah; Chumaidi, Achmad; Widjaja, Arief; Widjaja, Tri; Muharja, Maktum; Darmayanti, Rizki Fitria
Bulletin of Chemical Reaction Engineering & Catalysis 2024: BCREC Volume 19 Issue 2 Year 2024 (August 2024)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20130

Abstract

The low cost and excellent catalytic properties of lipase for industrial processes are highly desirable. A promising new approach involves the support modification of lipase and spacer arm, which enables the enhancement of lipase properties. This study investigates the immobilization of crude lipase from Mucor miehei onto a Polyurethane Foam (PUF) surface using various coating techniques. The PUF matrix was obtained through isocyanate and polyol reactions. Subsequently, the PUF was coated by adsorbing lipase and adding edible support material. The immobilized lipase was then utilized in the hydrolysis of coconut oil to produce fatty acids. Furthermore, the immobilized enzyme was employed in the esterification of fatty acids to produce bio-flavors. The results demonstrate that the attachment reaction using support material, namely lecithin, gelatin, MgCl2, and Polyethylene glycol 6000 (PEG), all of which are simple and edible, was able to enhance the stability and reusability of lipase. This immobilization technique increased triglyceride hydrolysis into FFA by 422%. The successful edible support modification of immobilized lipase from M. miehei on PUF, coupled with significantly enhanced enzyme stability and catalytic activity, offers a promising, environmentally friendly solution for diverse applications in the food industry. Copyright © 2024 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).
Characterization of Bio-Oil and Bio-Asphalt Produced Through Catalytic Pyrolysis of Different Biomass Feedstocks Dewajani, Heny; Irfin, Zakijah; Iswara, M. Agung Indra; Ramadhana, Rucita; Wahyudi, Moch. Ikhsan; Riris, Farikhatul Iza
Jurnal Teknik Kimia dan Lingkungan Vol. 9 No. 2 (2025): October 2025
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jtkl.v9i2.7610

Abstract

Asphalt is an aggregate binder in road pavement construction derived from the residue of the petroleum fractionation process, a non-renewable natural resource. Reliance on petroleum asphalt leads to resource scarcity and increased production costs. One alternative to reduce this dependence is the use of bio-asphalt substitutes, which utilize renewable natural resources derived from biomass. The abundance of biomass such as coconut shells, sawdust, and coffee husk in East Java, Indonesia, makes it a promising resource for bio-asphalt synthesis. This study analyzes the effect of biomass types and catalyst mass ratios on the characteristics of bio-asphalt from bio-oil pyrolysis and its mixture with petroleum asphalt, specifically the penetration (pen) 60/70. The research stages include biomass preparation, zeolite catalyst activation, biomass pyrolysis into bio-oil, evaporation into bio-asphalt, and mixture analysis. Optimal characteristics were achieved using a 6% w/w coconut shell biomass catalyst, resulting in a bio-oil yield of 47.27% and a density of 1.060 g/mL. The bio-asphalt yield was 3.41% when mixed with petroleum asphalt pen 60/70. The bio-asphalt exhibited a penetration value of 66.35, a softening point of 52°C, and a density of 1.042 g/cm³, in accordance with the Indonesian National Standard (SNI) 8135:2015.
Efektifitas Reaksi Transesterifikasi Minyak Kelapa dan Sereh untuk Pembuatan Perisa Alami dengan Biokatalisator Lipase serta Penggunaan Ultrasonik Moentamaria, Dwina; Amalia, Nabila Rizki; Rosita Dwi Chrisnandari; Irfin, Zakijah; Wulan, Dyah Ratna
Jurnal Riset Kimia Vol. 15 No. 1 (2024): March
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jrk.v15i1.641

Abstract

In general, flavor are synthesis through enzymatic hydrolysis and esterification reactions (up to 20 hours) using commercial ingredients based on free fatty acids and alcohol. Efficient endeavors utilizing enzymatic transesterification to expedite reactions are necessary to acquire flavored products. Substrates may originate from commercial or natural sources abundant in fatty acids and alcohol. Commercial fatty acids and alcohol (geraniol) are readily available in pure forms. Alternatively, fatty acids can be sourced from coconut oil, while geraniol can be derived from lemongrass oil, which is more cost-effective compared to commercial ingredients. Ultrasonics have emerged as a means to expedite enzymatic. The objective of this study is to investigate the impact of ultrasonic power and transesterification reaction time between coconut oil and geraniol on geraniol conversion. Utilizing lipase (415.99 U/g), coconut oil was subjected to transesterification with commercially obtained pure geraniol in a 1:3 weight ratio, conducted in an ultrasonic tank filled with water. Reaction durations spanned 30, 60, 90, 120, and 150 minutes, with ultrasonic powers set at 50, 70, and 90 watts. The study findings elucidated that the highest geraniol conversion rate of 50.59% was achieved with 70 watts of ultrasonic power over a 90-minute period. These optimal conditions were subsequently applied to transesterify coconut oil with geraniol from lemongrass oil, yielding a conversion rate of 90.29%. This finding demonsttrate the posibility of employing coconut oil and lemongrass oil in a one-stage transesterification process to produce natural flavors via enzymatic lipase catalysis expedited by ultrasonic technology, facilitating swift reaction times.
Increasing the Production Capacity of Mozzarella Cheese as a Pioneer for the Cheese Village at KU Mustarika Jaya Makmur, Ngantang Irfin, Zakijah; Rachmawati, Diana; Moentamaria, Dwina; Rulianah, Sri; Dwi Chrisnandari, Rosita; Akhsanu Takwim, R.N.
KOMUNITA: Jurnal Pengabdian dan Pemberdayaan Masyarakat Vol 4 No 4 (2025): November
Publisher : PELITA NUSA TENGGARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.60004/komunita.v4i4.292

Abstract

Indonesia has significant potential in dairy cattle production, one example being in Dusun Tepus, Ngantru Village, Ngantang Subdistrict, Malang Regency. The business group “Mustarika Jaya Makmur” consists of dairy farmers producing fresh milk. Previously, the State Polytechnic of Malang (Polinema) provided solutions in the form of training on supply chain management, milk processing, and the application of production calculation tools to support efficiency. Considering the business potential of mozzarella cheese, the group increased its production capacity to 50 liters of fresh milk on a pilot scale to initiate the “Kampung Kedju” program, aimed at improving the villagers’ livelihoods. This Community Service Program (PPM) is expected to provide solutions through production enhancement, assistance in the use of equipment in accordance with standard operating procedures (SOP), and the implementation of Good Manufacturing Practices (GMP) in cheese production. The expected outputs include improved partner capacity, scientific publications, and copyright registration of a HACCP guideline.
Penerapan GMP keju mozzarella di KU Mustarika Jaya Makmur Irfin, Zakijah; Syamsiana, Ika Noer; Moentamaria, Dwina; Rulianah, Sri; Chrisnandari, Rosita Dwi; Susilo, Sugeng Hadi
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 10, No 1 (2026): February
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v10i1.34117

Abstract

AbstrakKelompok Usaha Bersama (KUB) Mustarika Jaya Makmur sebagai pelaku Usaha Mikro, Kecil, dan Menengah (UMKM) pengolah susu di Desa Ngantru, Kecamatan Ngantang, Kabupaten Malang menghadapi kendala kualitas bahan baku, keterbatasan pengetahuan teknis dan rendahnya kemampuan pemasaran sehingga produk keju mozzarella yang dihasilkan belum memenuhi standar mutu dan daya saing pasar. Program pengabdian ini bertujuan untuk meningkatkan kualitas, nilai tambah serta jangkauan pemasaran produk melalui tiga kegiatan utama, yaitu pendampingan dalam penerapan Good Manufacturing Practices (GMP) pada proses produksi keju mozzarella, diversifikasi produk keju untuk meningkatkan nilai ekonomis, serta pelatihan pemasaran digital guna memperluas akses pasar. Metode pelaksanaan dilakukan dengan pendekatan partisipatif melalui tahap persiapan, pelatihan teori, praktik produksi keju sesuai Standar Nasional Indonesia (SNI), pendampingan diversifikasi produk, serta bimbingan pemasaran berbasis digital. Kegiatan pelatihan dan pendampingan melibatkan narasumber Miss Ines Puspita Setiawan, pendiri Sustainability School yang memberikan pemahaman mendalam tentang penerapan GMP dan strategi pemasaran digital. Hasil kegiatan menunjukkan peningkatan keterampilan mitra dalam menerapkan GMP, tersusunnya Standar Operasional Prosedur (SOP) berbasis GMP, diversifikasi produk keju serta meningkatnya kemampuan mitra dalam mengelola pemasaran daring melalui media sosial dan platform e-commerce. Hasil pelaksanaan menunjukkan capaian nyata berupa menunjukkan adanya peningkatan jumlah tenaga kerja, kenaikan pendapatan rata-rata bulanan sekitar 80%, serta peningkatan kapasitas produksi keju yaitu 5 kg per hari dengan kebutuhan susu mencapai 50 liter dan segmen pemasaran berkembang meliputi regional sampai nasional. Penerapan GMP, diversifikasi produk dan optimalisasi pemasaran digital terbukti efektif dalam meningkatkan mutu, nilai tambah dan daya saing produk keju mozzarella KUB Mustarika Jaya Makmur di pasar lokal maupun regional. Kata kunci: good manufacturing practices; keju mozzarella; pemasaran digital; UMKM dairy; produktivitas. AbstractThe Creative Innovation Program for Vocational Partners aims to improve the quality, added value, and market reach of mozzarella cheese production at the Joint Business Group (KUB) Mustarika Jaya Makmur in Malang Regency. KUB faces several challenges, including inconsistent milk quality, limited technical knowledge, and low marketing capacity, which hinder the production of mozzarella cheese that meets the Indonesian National Standard (SNI). To address these issues, the program focuses on three main activities: first, assistance in the implementation of Good Manufacturing Practices (GMP) in the mozzarella cheese production process; second, product diversification to increase economic value; and third, digital marketing training to expand market access and strengthen product competitiveness. The training and mentoring activities are supported by Miss Ines Puspita Setiawan, founder of the Sustainability School, who provides expertise in GMP application and digital marketing strategies. Through this program, KUB Mustarika Jaya Makmur is expected to produce high-quality mozzarella cheese with improved shelf life that complies with SNI, while also enhancing digital marketing capabilities to increase sales and strengthen the economic sustainability of local dairy farmers. Keywords: good manufacturing practices; mozzarella cheese; digital marketing; dairy SMEs; productivity.
Co-Authors Achmad Chumaidi, Achmad Akhsanu Takwim, R.N. Amalia, Nabila Rizki Chrisnandari, Rosita Dwi Dewajani, Heny Diana Rachmawati Dwi Chrisnandari, Rosita Dyah Ratna Wulan Iswara, M. Agung Indra Muharja, Maktum Riris, Farikhatul Iza Rizki Fitria Darmayanti Rosita Dwi Chrisnandari Rucita Ramadhana Sjarief Widjaja Sri Rulianah, Sri Susilo, Sugeng Hadi Syamsiana, Ika Noer Tri Widjaja Wahyudi, Moch. Ikhsan