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All Journal International Journal of Renewable Energy Development Jurnal Kompetensi Teknik Jurnal Bahan Alam Terbarukan Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Sainteknol : Jurnal Sains dan Teknologi VANOS Journal of Mechanical Engineering Education JMM (Jurnal Masyarakat Mandiri) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Pengabdian Magister Pendidikan IPA ASEAN Journal of Chemical Engineering Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Pengabdian Masyarakat Khatulistiwa Dedikasi: Jurnal Pengabdian kepada Masyarakat International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Pengabdian Dinamika
Prima Astuti Handayani
Department Of Chemical Engineering, Universitas Negeri Semarang, Kampus Sekaran, Gunungpati, Semarang 50229
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering 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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Pengendalian Stunting Melalui Edukasi Pengolahan Ragam Makanan Sehat dari Bahan Lokal dan Pendampingan Posyandu di Kelurahan Bongsari, Kota Semarang (Kolaborasi UNNES - PT Phapros, Tbk): Stunting Preventin through A Training on Processing a Variety of Healthy Foods from Local Ingredients and Assistance for Posyandu Cadres in Kelurahan Bongsari, Semarang City (Collaboration of UNNES and PT Phapros, Tbk) Kusumaningtyas, Ratna Dewi; Lestari, Yanesti Nuravianda; Handayani, Prima Astuti; Laila, Rachma Akmila; Salsabila, Anida; Rahmah, Aisyah Khalimatur; Putri, Silvia Nouvelia; Rachmadi, Moch Faizal; Jannah, Reni Ainun; Imani, Nadya Alfa Cahaya; Barita, Asyera Dewi; Kun, Stefania Orance; Nindita, Ariana Eka
Jurnal Pengabdian Magister Pendidikan IPA Vol 7 No 4 (2024): Oktober-Desember 2024
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpmpi.v7i4.9424

Abstract

Stunting is among the national priority issue in the National Medium Term Development Plan (RPJMN). At the global level, stunting is also a priority based on the Sustainable Development Goals (SDGs), especially related to the 3rd and 2nd SDGs, namely "good health and well-being" and "zero hunger". In this regard, the Semarang City Government has targeted that by 2024 the city will be free of stunting or zero stunting. On the other hand, the city of Semarang still records quite significant stunting data, namely 912 cases in 2024. To achieve the target of zero stunting, a synergy between the government, community, universities and industrial corporate social responsibility is necessary and can be implemented through community service and empowerment activity. Kecamatan Semarang Barat is among the area which record a quite high stunting rates in Semarang city, namely 84 cases in January 2024. To reduce the stunting rate in Kecamatan Semarang Barat, especially Kelurahan Bongsari, is a synergy between universities (UNNES), industry (pharmaceutical company PT Phapros Tbk), and local government is developed through a community service activities. Community service activities has been carried out in the form of education on stunting awareness, training on processing a variety of healthy foods from local ingredients and training to increase the capacity of posyandu cadres in Kelurahan Bongsari. UNNES and PT Phapros Tbk team also contribute in the form of recipe book, vitamins, and anthropometry equipment.
Peningkatan produktivitas jahe instan IRT Bekti Pertiwi melalui penerapan mesin pengaduk dan mesin timbang otomatis Asri, Sarwi; Handayani, Prima Astuti; Djuniadi, Djuniadi; Maulana, Aditya; Dewantara, Muhammad Zhafran; Najiah, Siti Thoifatun
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 1 (2025): Januari
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i1.26849

Abstract

Abstrak Jahe (Zingiber officinale) merupakan tanaman tropis yang telah digunakan selama ribuan tahun sebagai bahan obat tradisional, rempah, dan tambahan dalam makanan serta minuman. Salah satu produk olahannya adalah minuman jahe instan, yang kini semakin berkembang. IRT Bekti Pertiwi di Desa Gesing, Kabupaten Temanggung, merupakan industri rumah tangga yang memproduksi jahe instan. Namun, produksi mereka terbatas akibat keterbatasan peralatan, hanya mampu memproduksi 2 kg jahe per hari dalam waktu 5 jam. Untuk meningkatkan produktivitas, Tim Dosen dari Fakultas Teknik Universitas Negeri Semarang (UNNES) bersama dua mahasiswa, mengembangkan mesin pengaduk adonan jahe dan mesin timbang otomatis. Mesin pengaduk adonan berkapasitas 5-10 kg menggunakan motor listrik, sedangkan mesin timbang otomatis berbasis Arduino dilengkapi dengan sistem kontrol untuk mengukur dan menyesuaikan berat jahe yang dimasukkan ke dalam kemasan. Penerapan teknologi ini dilaksanakan melalui program pengabdian masyarakat yang mencakup sosialisasi, pelatihan, dan evaluasi. Melalui kegiatan pengabdian ini, produksi jahe instan di IRT Bekti Pertiwi mengalami peningkatan hingga lima kali lipat. Diharapkan, kegiatan ini dapat berkontribusi dalam meningkatkan kesejahteraan masyarakat dengan memperbesar kapasitas produksi serta meningkatkan daya saing produk jahe instan. Kata kunci: jahe instan; pelatihan; mesin pengaduk adonan; mesin timbang otomatis. Abstract Ginger (Zingiber officinale) is a tropical plant that has been used for thousands of years as a traditional medicinal ingredient, spice, and addition in food and beverages. One of its processed products is instant ginger drink, which is now growing. Bekti Pertiwi home industry in Gesing village, Temanggung district, produces instant ginger. However, due to limited equipment, they can only produce 2 kg of ginger per day in 5 hours. To increase productivity, a team of lecturers from the Faculty of Engineering, Universitas Negeri Semarang (UNNES), together with two students, developed a ginger dough mixer and an automatic weighing machine. The dough kneading machine with a capacity of 5-10 kg uses an electric motor, while the Arduino-based automatic weighing machine is equipped with a control system to measure and adjust the weight of ginger put into the packaging. The application of this technology is carried out through a community service program that includes socialization, training, and evaluation. Through this community service program, the production of instant ginger in Bekti Pertiwi's IRT has increased up to five times. Hopefully, this activity can contribute to improving the welfare of the community by enlarging production capacity and increasing the competitiveness of instant ginger products. Keywords: instant ginger; training; dough mixer; automatic weighing machine.
Energy Consumption Analysis on Ginger Extract Powder Mixer Machine Sarwi Asri; Prima Astuti Handayani; Djuniadi Djuniadi; Hanif Hidayat; Aditya Maulana; Muhammad Zhafran Dewantara; Siti Thoifatun Najiah
VANOS Journal of Mechanical Engineering Education Vol 9, No 2 (2024)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/vanos.v9i2.28785

Abstract

Ginger extract powder is a popular product in the beverage and health industry, requiring careful processing to produce high-quality results. This study aims to determine the efficiency of the stirring blade design on the ginger extract powder stirring machine. The intensive stirring process can lead to faster wear of the blades, making the selection of suitable materials crucial. The research was conducted through direct observation at UKM Bekti Pertiwi. The data collection process was structured to capture both quantitative data: 1) Energy consumption: energy used by the machine was measured in kilowatt-hours (kWh) using a standardized electricity meter, and 2) Cycle time: the time for a full cycle was recorded, from material input to the completion of the stirring process. A controlled sample of 2 kg of ginger essence was used in each test to standardize conditions and ensure consistent results. The sample size was chosen based on typical batch sizes processed by SMEs, aiming to represent common production volumes. The ginger essence sample was prepared with a standardized consistency and viscosity to reduce variability and ensure repeatability across tests. The stirring blade samples were manufactured from stainless steel with a Teflon coating, selected due to its corrosion resistance and durability in acidic environments. Blade dimensions were set to 504 mm in diameter and 3 mm in thickness, based on initial design research suggesting these dimensions as optimal for the desired mixing efficiency and wear resistance. Each test was conducted under the same operational settings, including motor speed and cycle duration, to maintain uniformity in testing conditions. Results indicate that a combination of stainless steel and Teflon in the stirring blades provides optimal performance, with energy consumption reaching 0.1072 kWh for 2 kg of ginger extract. The electricity cost for one production cycle is IDR 144.93. These findings can be used for future production planning, as well as to improve operational efficiency and the quality of ginger extract products.
MENGUBAH TANTANGAN MENJADI PELUANG: PENGELOLAAN LIMBAH POPOK BAYI MENJADI PUPUK ORGANIK UNGGULAN Kusumaningrum, Maharani; Imani, Nadya Alfa Cahaya; Wulansarie, Ria; Handayani, Prima Astuti; Hibatullah, Ridwan Dani; Nanggala, Pragusti Lintang Adhi; Ichwan, Rizky; Nada, Athiya Rihadatul ‘Aisy Qothrun
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2024): Volume 5 No 1 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i1.24767

Abstract

Semakin banyaknya limbah rumah tangga yang dihasilkan khususnya limbah popok bayi memerlukan penanganan khusus agar limbah popok tersebut bisa mempunyai nilai guna yang lebih tinggi. Limbah popok menjadi salah satu limbah terbesar yang membutuhkan usaha yang besar dalam pengolahannya karena sebagian besar masyarakat masih mempunyai kesadaran yang kurang akan adanya timbunan limbah popok bayi. Kandungan dalam limbah popok bayi seperti kotoran dan air kencing balita akan memberikan dampak negatif kepada masyarakat jika tidak segera ditangani. Oleh karena itu, perlunya pengolahan lebih lanjut agar limbah popok tidak semakin menumpuk. Lahan di Kelurahan Mangunsari, Kecamatan Gunungpati, Kota Semarang masih banyak yang digunakan sebagai lahan pertanian. Para petani lebih sering menggunakan metode sebar pupuk di atas tanah untuk metode pemupukannya. Hal ini telah dikaji bahwa nitrogen dari pupuk mudah terbawa ke aliran sungai dan menguap ke udara sehingga menurunkan efektivitas pemupukan dan biaya pemupukan yang diperlukan lebih tinggi. Kegiatan pengabdian telah dilaksanakan dengan cara metodologis dimulai dari identifikasi, sosialisasi, pelatihan, program aksi dan diakhiri dengan evaluasi. Dengan adanya pelaksanaan pegabdian terkait pengolahan limbah popok bayi menjadi pupuk organik yang ramah lingkungan dan media tanam akan membantu agar pemupukan pada tanaman menjadi lebih efektif. Adanya kandungan SAP pada limbah popok bayi yang bercampur dengan tanah juga dapat mempertahankan kadar air, sehingga menjaga ketersediaan air bagi tanaman pada musim kemarau.
INOVASI TUNGKU MASAKAN HEMAT ENERGI PADA INDUSTRI TAHU Handayani, Prima Astuti; Mahatmanti, Widhi; Musyono, Ari Dwi Nur Indriawan; Mursit, R. Ambar Kuntoro; Wikandaru, Achmad; Pikrihaikal, Tedhy; Sawiji, Kurnia Ayu
JMM (Jurnal Masyarakat Mandiri) Vol 9, No 6 (2025): Desember
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jmm.v9i6.35581

Abstract

Abstrak: UKM Tahu Ngaran merupakan industri rumah tangga yang produktif secara ekonomi. Mitra diketuai oleh pak Muhtadi yang beranggotan 7 orang yang berlokasi di Kecamatan Gunungpati Semarang. Setiap harinya Tahu Ngaran mampu produksi 11-13 kali proses produksi tahu. Permasalahan yang dihadapi mitra yaitu tungku masakan belum menggunakan teknologi dan mitra belum melakukan branding produk dan pengemasan produk tahu. Tujuan dari kegiatan PKM untuk meningkatkan efisiensi energi dan produktivitas UKM Tahu Ngaran, sehingga dapat meningkatkan kesejahteraan mitra. Untuk mencapai tujuan kegiatan maka metode yang dilakukan meliputi sosialisasi, praktek, pendampingan dan evaluasi. Evaluasi dilakukan melalui tanya jawab secara langsung kepada mitra dan pengamatan saat kegiatan berlangsung. Setelah kegiatan program selesai tim akan melakukan pemantauan akan keberlangsungan program di lokasi mitra. Hasil PkM diperoleh tungku masakan yang memberikan hemat waktu perebusan 33,33% dan penghematan kayu bakar 33,33%. Dengan demikian mitra dapat meningkatkan laba sebesar 67,26% sehingga dapat meningkatkan kesejahteraan UKM Tahu Ngaran. Produk Tahu Ngaran sudah dipasarkan berkemasan dengan nama brand “Tahu Ngaran”.Abstract: UKM Tahu Ngaran is an economically productive home industry. The partner organization, led by Mr. Muhtadi, consists of 7 members and is in Gunungpati District, Semarang. Daily production at Tahu Ngaran involves 11 to 13 batches of tofu processing. The primary challenges faced by the partner included the use of non-technological cooking stoves and a lack of product branding and packaging. The objective of this Community Partnership Program (PKM) activity was to enhance energy efficiency and productivity for UKM Tahu Ngaran, thereby improving the welfare of the partners. To achieve this objective, the methodology employed involved a series of steps: socialization, practical training, mentorship, and evaluation. The evaluation was conducted through direct interviews (Q&A) with the partners and observational monitoring during the activity. Upon completion of the program, the team will continue to monitor the sustainability of the program at the partner's location. The results of the PKM included the implementation of a new cooking stove, which yielded a 33.33% reduction in boiling time and a 33.33% saving in firewood consumption. Consequently, the partner was able to increase profit by 67.26%, successfully improving the welfare of UKM Tahu Ngaran. The Tahu Ngaran product is now marketed in branded packaging under the name "Tahu Ngaran".
Inovasi alat press dan cetak tahu pada UKM tahu Ngaran Prima Astuti Handayani; Widhi Mahatmanti; Sarwi Asri; Masni Maksiola; Raihan Madanii; Galih Muhammad Falefi; Mohamad Fiqih Sa'ari
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 9, No 2 (2025): March
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v9i2.29966

Abstract

Abstrak UKM Tahu Ngaran berlokasi di Kelurahan Pakintelan Kecamatan Gunungpati Semarang dan memproduksi tahu secara mandiri mulai tahun 2002. Tahu Ngaran setiap proses produksi membutuhkan 10 kg kedelai dan menghasilkan 6 peniris tahu, dimana setiap tahu dijual dengan harga Rp. 40.000,- per peniris. Tahu Ngaran setiap harinya mampu produksi 5-10 kali proses produksi, yang dipasarkan ke daerah Bangetayu Semarang.  Permasalahan mitra yaitu 1) UKM belum menggunakan teknologi, 2) Alat cetak tahu masih terbuat dari anyaman bambu, 3) Pemasaran tahu belum menggunakan kemasan. Solusi yang ditawarkan meliputi; 1). Pembuatan alat press dan cetak tahu terbuat stainless steel, 2). Tahu dikemas sehingga produk tetap higienis dan pemberian label kemasan. Tujuan dari kegiatan PkM meningkatkan produktivitas dan higienitas tahu pada Tahu Ngaran, sehingga dapat meningkatkan kesejahteraan perajin serta masyarakat Pakintelan Kecamatan Gunungpati pada umumnya. Metode yang dilakukan meliputi 1). koordinasi tim dengan mitra pelaksanaan kegiatan PkM; 2). Sosialisasi proses pembuatan tahu yang higienis ;3). Fasilitasi alat press dan cetak tahu berbahan stainless steel ;4). Pembuatan label kemasan; 5). Praktek penggunaan alat press dan cetak tahu hasil PkM; 6). Pendampingan; 7). Evaluasi pelaksanaan  dan keberlanjutan program. Hasil kegiatan PkM yaitu modifikasi alat press dan cetak tahu berbahan stainless steel, sehingga mudah dibersihkan dan mempercepat proses cetak tahu. Alat cetak tahu sebelumnya menggunakan pemberat batu yang membutuhkan waktu sekitar 35 menit, sedangkan dengan alat hasil PkM dapat mempersingkat waktu menjadi 15 menit. Dengan demikian dengan alat hasil PkM dapat meningkatkan produksi Tahu Ngaran. Kata kunci: tahu; cetak tahu; higienis; stainless steel. AbstractUKM Tahu Ngaran, located in Pakintelan Village, Gunungpati District, Semarang, has been independently producing tofu since 2002. Each production cycle requires 10 kg of soybeans and yields six trays of tofu, with each tray sold for Rp. 40,000. Tahu Ngaran conducts 5 to 10 production cycles per day, distributing its products to the Bangetayu area in Semarang. Several challenges have been identified in the production process: (1) the absence of modern technology adoption, (2) the use of woven bamboo as the primary material for tofu molding equipment, and (3) the lack of proper packaging in the marketing strategy. To address these issues, the proposed solutions include: (1) the development of stainless steel tofu pressing and molding equipment to enhance hygiene and efficiency and (2) the implementation of hygienic packaging with labeling to improve product quality and marketability. This community program (PkM) aims to enhance the productivity and hygiene of tofu production at Tahu Ngaran, thereby contributing to the well-being of tofu artisans and the broader community in Pakintelan Village, Gunungpati District. The methodology employed in this study consists of several stages: (1) coordination between the research team and SME partners, (2) dissemination of information on hygienic tofu production processes, (3) provision of stainless steel tofu pressing and molding equipment, (4) development and application of product labeling, (5) training in the use of the improved tofu press and mold, (6) continuous mentoring, and (7) evaluation of program implementation and sustainability. The outcomes of this PkM initiative include the successful modification of tofu pressing and molding equipment using stainless steel, which facilitates cleaning and enhances production efficiency. The traditional tofu molding process relied on stone weights, requiring approximately 35 minutes per cycle. In contrast, the newly developed equipment reduces processing time to 15 minutes. This technological improvement significantly increases production capacity and contributes to the overall enhancement of the tofu manufacturing process at Tahu Ngaran. Keywords: tofu; tofu mold; hygienic; stainless steel.
Tin (II) Chloride Catalyzed Esterification of High FFA Jatropha Oil: Experimental and Kinetics Study Kusumaningtyas, Ratna Dewi; Handayani, Prima Astuti; Rochmadi, Rochmadi; Purwono, Suryo; Budiman, Arief
International Journal of Renewable Energy Development Vol 3, No 2 (2014): July 2014
Publisher : Center of Biomass & Renewable Energy (CBIORE)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.3.2.75-81

Abstract

Biodiesel is one of the promising energy source alternatives to fossil fuel. To produce biodiesel in a more economical way, the employment of the low-cost feed stocks, such as non-edible oils with high free fatty acid (FFA), is necessary. Accordingly, the esterification reaction of FFA in vegetable oils plays an important role in the biodiesel production. In this work, esterification of FFA contained in Crude Jatropha Oil (CJO) in the presence of tin (II) chloride catalyst in a batch reactor has been carried out. The esterification reaction was conducted using methanol at the temperature of 40-60 °C for 4 hours. The effect of molar ratio of methanol to oil was studied in the range 15:1 to 120:1. The influence of catalyst loading was investigated in the range of 2.5 to 15% w/w oil. The optimum reaction conversion was obtained at 60 °C with the catalyst loading of 10% w/w oil and molar ratio of methanol to oil of 120:1. A pseudo-homogeneous reversible second order kinetic model for describing the esterification of FFA contained in CJO with methanol over tin (II) chloride catalyst was developed based on the experimental data. The kinetic model can fit the data very well.
Co-Authors A Abdullah A. Amar Mualimin Adhi Setiawan Aditya Maulana Aditya Maulana, Aditya Afifah Ritmadanti Agung Ari Wibowo Agung Feinnudin Agung Feinnudin Amar Mualimin, A. Anak Agung Istri Sri Wiadnyani Andriyani, Ririn Anugrahani, Viona Widya Ari Dwi Nur Indriawan Musyono Arief Budiman Arini, Gusti Ayu Asalil Mustain Asri Rahmawati Asri, Sarwi Bahlawan, Zuhriyan Ash Shiddieqy Barita, Asyera Dewi Bayu Triwibowo Catur Rini Widyastuti, Catur Rini Chafidz, Achmad Dewantara, Muhammad Zhafran Dewi Kartika Dhoni Hartanto Dimas Rahadian Aji Muhammad, Dimas Rahadian Aji Djuniadi Djuniadi Eko Nurjanah, Eko Eqi Rosyana Juniarti Feddy Setio Pribadi Galih Muhammad Falefi H Hadiyanto Hadikawuryan, Danang Subarkah Hanif Hidayat Harianingsih, Harianingsih Haryanto, Rohadi Hesmita Wijayanti, Hesmita Heti Nurcahyanti Hibatullah, Ridwan Dani Husaen, Paisal Ichwan, Rizky Imani, Nadya Alfa Cahaya Indra Sakti Pangestu Isnina Noor Ubay Ivon Maulana Jannah, Reni Ainun Juniarti, Eqi Rosyana Khoiroh, Ianatul Kun, Stefania Orance Laila, Rachma Akmila Lestari, Yanesti Nur Avianda Maftukhaturrizqiyah, Maftukhaturrizqiyah Maharani Kusumaningrum Masni Maksiola Maulana, Ivon Mohamad Fiqih Sa'ari Muhammad Hadi Muhammad Zhafran Dewantara Mursit, R. Ambar Kuntoro Nada, Athiya Rihadatul ‘Aisy Qothrun Najiah, Siti Thoifatun Nanggala, Pragusti Lintang Adhi Nindita, Ariana Eka Notoatmojo, Notoatmojo Novitas, Hapipah Nanda Nurcahyanti, Heti Nurjanah, Eko Oktafiani Oktafiani, Oktafiani Oktafiani, Oktafiani Oktafiani, Oktafiani Paramita, Oktavianti Pikrihaikal, Tedhy Pradnya, Irene Nindita Purwana, Yulian Candra Putri, Melinia Rahmahani Putri, Silvia Nouvelia Rachmadi, Moch Faizal Rahmah, Aisyah Khalimatur Rahmawati, Asri Raihan Madanii Ramadani, Nur Salsabillah Ratna Dewi Kusumaningtyas Ria Wulansarie, Ria Rikardo, Yanuar Riza Mazidu Sholihin Rochmadi Rochmadi Rusiyanto Rusiyanto, Rusiyanto Salsabila, Anida Saputra, Harius Eko Sarwi Asri Sarwi Asri Savira Rinda Erliana Sawiji, Kurnia Ayu Setiawan Sariyoga, Setiawan Siti Nurrohmah Siti Thoifatun Najiah Sri Handayani Sri Kadarwati Sri Kadarwati Suryo Purwono Sutrisno, Akhmad Ulfayanti, Isna Mardya Ulviana, Ria Umi Cholifah Wara Dyah Pita Rengga Widhi Mahatmanti Widhi Mahatmanti Widi Astuti Widi Widayat Wijayanti, Hesmita Wijayanti, Reni Titis Wikandaru, Achmad Wulansari, Durroti Zuhriah Yuni Permata Sari, Yuni Permata