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All Journal IAES International Journal of Artificial Intelligence (IJ-AI) Teknotan: Jurnal Industri Teknologi Pertanian TELKOMNIKA (Telecommunication Computing Electronics and Control) Jurnal Mahasiswa TEUB Journal of Environmental Engineering and Sustainable Technology Jurnal Keteknikan Pertanian Tropis dan Biosistem Jurnal Teknologi Pertanian agriTECH Jurnal Ilmiah Rekayasa Pertanian dan Biosistem Industria: Jurnal Teknologi dan Manajemen Agroindustri Advances in Food Science, Sustainable Agriculture and Agroindustrial Engineering (AFSSAAE) Journal of Robotics and Control (JRC) Insyst : Journal of Intelligent System and Computation Jurnal Abdi Masyarakat Indonesia J-Icon : Jurnal Komputer dan Informatika
Dimas Firmanda Al Riza
University of Brawijaya
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Public Health Other

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Journal : agriTECH

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Rancang Bangun Fermentor Yogurt dengan Sistem Kontrol Logika Fuzzy Menggunakan Mikrokontroler ATMega32 Dimas Firmanda Al Riza; Retno Damayanti; Yusuf Hendrawan
agriTECH Vol 34, No 4 (2014)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (733.041 KB) | DOI: 10.22146/agritech.9441

Abstract

Yogurt is milk fermented product that becomes popular recently. In yogurt processing, fermenter is the main device. Lactobacillus sp. and Streptococcus sp. are two probiotic bacteria species that are common to be used in yogurt fermentation process. Both bacteria grow well in a specific range of temperature between 40-45 C, so temperature control in fermenter operational becomes one of the important things to ensure speed and quality of fermentation process. Fermentation process is a process with high degree of uncertainty and categorized as non-linear time invariant system. Thus, classical control system method is difficult to be implemented. To overcome this issue, intelligent control system can be implemented to yogurt’s fermenter temperature control. One of intelligent control system method that can be implemented is fuzzy logic-based control system. In this study, fuzzy control system has been designed and implemented for fermenter temperature control. Control system algorithm is integrated in ATMega16 (for On-Off logic control) and ATMega32 (for Fuzzy Logic control) microcontrollers. Experimental results of fermenter control system shows that temperature profile of fermenter with fuzzy logic control system is more stable by settling time around an hour and 15 minutes and error average of -0.36 oC. Fermentation process for 16 hours with fuzzy logic controller produce yogurt with pH value of 3.66, total number of Lactobacillus sp. is 4.85 x 10 cfu/mL and Streptococcus sp. is 1.34 x 106 cfu/mL.ABSTRAKYogurt merupakan produk olahan susu terfermentasi yang akhir-akhir ini mulai banyak disukai oleh masyarakat. Pada pengolahan susu menjadi yogurt, fermentor digunakan sebagai alat utama. Lactobacillus sp. dan Streptococcus sp. merupakan dua spesies bakteri yang biasa digunakan dalam proses fermentasi yogurt. Kedua jenis bakteri ini tumbuh dengan baik pada suhu yang spesifik yaitu antara 40–45 C, sehingga pengendalian suhu pada operasi fermentor merupakan hal yang penting agar proses fermentasi dapat berjalan secara cepat dan baik. Proses fermentasi merupakan proses yang memiliki tingkat ketidakpastian yang tinggi dan merupakan sistem non-linear time variant, sehingga desain sistem kontrol klasik akan sulit untuk diterapkan. Untuk mengatasi hal ini sistem kontrol cerdas dapat untuk diimplementasikan pada pengendalian suhu fermentor yogurt. Salah satu dari metode sistem kontrol cerdas yang dapat digunakan adalah sistem kontrol dengan logika fuzzy. Pada penelitian ini telah dilakukan rancang bangun sistem pengendalian suhu berbasis algoritma fuzzy pada fermentor yogurt. Algoritma sistem kendali diintegrasikan dalam mikrokontroler ATMega16 (untuk logika ON-OFF) dan ATMega32 (untuk logika fuzzy). Hasil uji sistem pengendalian suhu fermentor menunjukkan bahwa dengan menggunakan algoritma fuzzy sistem pengendalian lebih stabil dengan settling time selama 1 jam 20 menit dan rata-rata error sebesar -0,36 oC. Proses fermentasi selama 16 jam menggunakan fermentor dengan kontroler fuzzy menghasilkan yogurt dengan pH sebesar 3,66, jumlah mikroba Lactobacillus sp. sebanyak 4,85 x 108cfu/mL, dan Streptococcus sp. sebanyak 1,34 x 10 6 cfu/mL.
Optimasi Dengan Algoritma RSM-CCD Pada Evaporator Vakum Waterjet Dengan Pengendali Suhu Fuzzy Pada Pembuatan Permen Susu Yusuf Hendrawan; Bambang Susilo; Angky Wahyu Putranto; Dimas Firmanda Al Riza; Dewi Maya Maharani; Mutiara Nisa' Amri
agriTECH Vol 36, No 2 (2016)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (790.355 KB) | DOI: 10.22146/agritech.12868

Abstract

Milk candy is a product which has to be produced under a high temperature to achieve the caramelization process. The use of vacuum system during a food processing is one of the alternatives to engineer the value of a material’s boiling point. The temperature control system and the mixing speed in machine that produce the milk candy were expected to be able to prevent the formation of off-flavour in the final product. A smart control system based on fuzzy logic was applied in the temperature control within the double jacket vacuum evaporator machine that needs stable temperature in the cooking process. The objective of this research is developing vacuum evaporator for milk candy production using fuzzy temperature control. The result in machine and system planning showed that the process of milk candy production was going on well. The parameter optimization of water content and ash content purposed to acquire the temperature point parameter and mixing speed in milk candy production. The optimization method was response surface methodology (RSM), by using the model of central composite design (CCD). The optimization resulted 90.18oC for the temperature parameter and 512 RPM for the mixing speed, with the prediction about 4.69% of water content and 1.57% of ash content.ABSTRAKPermen susu merupakan salah satu produk yang diolah dengan suhu tinggi untuk mencapai proses karamelisasi. Pengolahan pangan dengan sistem vakum merupakan salah satu alternatif untuk merekayasa nilai titik didih suatu bahan. Sistem pengendalian suhu serta kecepatan pengadukan pada mesin produksi permen susu diharapkan dapat mencegah terbentuknya partikel hitam (off-flavour) pada produk akhir. Sistem kontrol cerdas logika fuzzy diaplikasikan dalam pengendalian suhu pada mesin evaporator vakum double jacket yang membutuhkan tingkat stabilitas suhu pemasakan permen susu. Tujuan dari penelitian ini adalah membuat rancang bangun evaporator vakum pada pembuatan permen susu dengan menggunakan pengendali suhu fuzzy. Hasil perancangan mesin dan sistem menunjukkan bahwa proses produksi permen susu dapat berlangsung dengan baik. Optimasi parameter kadar air dan kadar abu dilakukan untuk mendapatkan titik parameter suhu dan kecepatan pengadukan produksi permen susu yang optimum. Metode optimasi menggunakan response surface methodology (RSM) model central composite design (CCD). Hasil optimasi didapatkan parameter suhu 90,18oC dan kecepatan pengadukan 512 RPM, dengan prediksi produk permen susu memiliki nilai kadar air 4,69% dan kadar abu 1,57%.
Co-Authors Agus Supriatna Somantri Angky Wahyu Putranto Anugerah Dany Priyanto Anung Nugroho Jayalaksono Ariani, Safitri Diah Ayu Arrahmadiana Estuwilujeng Bambang Dwi Argo Bambang Susilo Candika Pambayun Chatarina Umbul Wahyuni Darmanto Darmanto Dewi Maya Maharani Fausi, Ria Risti Ferina Tiara Safitri Fitriyah, Hurriyatul Hamzah, Ilham Fathurrahman Himawan, Harki Huda, Surya Izza, Ni'matul Joko Prasetyo Kondo, Naoshi Kusumawardani, Mila M Bagus Hermanto Ma'rifah, Puteri Nurul Maharsih, Inggit Kresna Makoto Kuramoto Mochamad Bagus Hermanto Moechammad Sarosa Muhammad Lutfi Almer Hasan, Muhammad Lutfi Almer Muharfiza Muharfiza Mutiara Nisa' Amri Naoshi Kondo Nauri, Afid Rahman Nazhif Ubaidillah Nie Sen Nughi Arie Nugraha Nurul Istiqomah Khoirunnisa Nurussa’adah, n/a Ogawa, Yuichi Ramadhani, Zahra Cahya Retno Damayanti Rhamadan, Ilham Sadimantara, Muhammad Syukri Sandra Sandra Sandra Sandra Simping Yuliatun, Simping Sucipto Sucipto Supriyanto Supriyanto Suzuki, Tetsuhito Syed Ihtsham Ul Haq Gilani Tetsuhito Suzuki Titon Elang Perkasa Wahyu Dwi Ristianingrum Wahyudi, Naufal Hilmiy Nizar Yasushi Kohno Yuichi Ogawa Yusuf Hendrawan Zaqlul Iqbal