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All Journal Jurnal Teknologi Pertanian Community Empowerment International Journal of Artificial Intelligence and Robotics (IJAIR) Jurnal Ilmiah Pengabdian dan Inovasi CEMARA: Jurnal Pengabdian Masyarakat Multidisiplin
Widyaningtyas, Shinta
Universitas Brawijaya
Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Public Health Social Sciences Other

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DETEKSI PEMALSUAN KOPI LUWAK MENGGUNAKAN SIFAT BIOLISTRIK DAN JARINGAN SARAF TIRUAN Widyaningtyas, Shinta; Sucipto, Sucipto; Hendrawan, Yusuf
Jurnal Teknologi Pertanian Vol 19, No 3 (2018)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1091.06 KB) | DOI: 10.21776/ub.jtp.2018.019.03.3

Abstract

Metode konvensional deteksi pemalsuan kopi luwak menggunakan analisis kimia bersifat destruktif, mahal, membutuhkan preparasi sampel dan waktu lama. Perancangan alat sederhana, cepat, akurat, dan non destruktif berdasarkan sifat biolistrik berpeluang untuk mendeteksi pemalsuan kopi luwak. Penelitian ini bertujuan mendapat topologi Jaringan Saraf Tiruan (JST) terbaik untuk mendeteksi pemalsuan kopi luwak menggunakan input sifat biolistrik berdasarkan total fenol, pH, dan persentase pemalsuan kopi luwak. Hasil penelitian menunjukkan bahwa impedansi, resistansi seri, resistansi paralel berbanding terbalik dengan frekuensi, induktansi seri dan induktansi paralel berbanding lurus dengan frekuensi. Topologi JST terpilih yaitu (5-40-40-3) memiliki MSE pelatihan 0.0099 dan MSE validasi 0,0479. Hasil penelitian menunjukkan sifat biolistrik dan JST berpotensi sebagai sensor mendeteksi pemalsuan kopi luwak.
Filter Feature Selection for Detecting Mixture, Total Phenol, and pH of Civet Coffee Widyaningtyas, Shinta; Arwani, Muhammad; Sucipto, Sucipto; Hendrawan, Yusuf
International Journal of Artificial Intelligence & Robotics (IJAIR) Vol. 6 No. 2 (2024): November 2024
Publisher : Informatics Department-Universitas Dr. Soetomo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25139/ijair.v6i2.9010

Abstract

Civet coffee, a highly valued specialty coffee, is susceptible to adulteration with regular coffee, resulting in economic losses and consumer fraud. This study investigates the potential of electrical spectroscopy as a non-destructive technique for detecting civet coffee adulteration. We analyzed the bioelectrical properties of civet coffee beans and their mixtures with regular coffee, focusing on impedance parameters (Z, Lp, Ls, Rp, Rs) as potential indicators of adulteration. Two machine learning models, Artificial Neural Network (ANN) and Random Forest, were trained and evaluated using Mean Squared Error (MSE) validation to identify the most informative features for predicting mixture composition, total phenol content, and pH. The findings demonstrate that impedance parameters, particularly Z, consistently exhibited high feature importance scores across different attribute evaluators and search methods. The optimal model, an ANN with a correlation attribute evaluator and ranker search method, achieved an MSE validation of 0.0479, indicating strong predictive accuracy. These results suggest that electrical spectroscopy, coupled with machine learning, offers a promising approach for developing automated, non-invasive methods for detecting civet coffee adulteration, thereby protecting consumers and ensuring the integrity of the specialty coffee market.
Unlocking export market potential with optimized coffee capsule packaging Widyaningtyas, Shinta; Nanda, Ririn Fatma; Al Jabar, Andi; Pratama, Yogi; Febrianto, Dony; Hidayat, Muhammad Fajri
Community Empowerment Vol 10 No 4 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.12419

Abstract

Coffee capsules, which are measured servings of premium, ready-to-brew ground coffee sealed to preserve flavor, possess significant development potential due to the limited number of competitors and promising export and domestic market opportunities. CV. Sundanika Indonesia is one such coffee capsule producer in Indonesia. In its export market initiation, CV. Sundanika Indonesia faced challenges in selecting the appropriate packaging material for its coffee capsules. This Community Service program aimed to facilitate the transition of coffee capsule packaging materials at CV. Sundanika Indonesia. The program commenced with discussions to comprehensively identify the partner's problems and provide recommended solutions. The methods employed included Focus Group Discussions, the provision of sample coffee capsule packaging, and program evaluation. The program results indicate that the partner gained an understanding of packaging functions in general and the significant differences between plastic and aluminum foil packaging for coffee capsules, which motivated them to switch to aluminum foil packaging. A 30% increase in the partner's understanding supports the success of this packaging transition.
Sosialisasi Penerapan Cara Produksi Pangan Olahan yang Baik (CPPOB) Pada Proses Produksi Kopi Kapsul Widyaningtyas, Shinta; Nanda, Ririn Fatma; Al Jabar, Andi; Pratama, Yogi; Febrianto, Dony; Hidayat, Muhammad Fajri
Jurnal Ilmiah Pengabdian dan Inovasi Vol. 3 No. 2 (2024): Jurnal Ilmiah Pengabdian dan Inovasi (Desember)
Publisher : Insan Kreasi Media

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57248/jilpi.v3i2.512

Abstract

Coffee is one of Indonesia's strategic commodities. There are various kinds of processed coffee, one of them is coffee pods. CV Sundanika Indonesia is one of the coffee pods producers in Indonesia. The lack of competitors makes CV Sundanika Indonesia's coffee pods become attractive to the export market. However, in the plan to export coffee pods products, CV Sundanika Indonesia is constrained by the distribution permit from BPOM. One of the requirements for obtaining a BPOM distribution permit is the standardization of the production process through CPPOB. The purpose of this Community Service Program is to introduce CPPOB to CV Sundanika Indonesia. Activities are divided into three stages, i.e. preparation, implementation, and evaluation to ensure the success of the community service program. The preparation stage includes content development, the implementation stage includes CPPOB socialization, and the evaluation stage is measured to determine the participants' understanding of CPPOB. The results of this program indicate an average increase in understanding of CPPOB at 30% as seen from the results of the pre-test and post-test. In addition, the result of this program is a recapitulation of the documents needed in the CPPOB submission.
Pengembangan Minat Studi Lanjut: Sosialisasi Strategi Masuk Sekolah Kedinasan dan Simulasi Try out Berbasis CAT (Computer Assisted Test) di MA Al Ishlah Jenggawah Jember Hermawan, Frengky; Prajna, Deyla; Prasetyo, Angga; Widyaningtyas, Shinta
CEMARA: Jurnal Pengabdian Masyarakat Multidisiplin Vol 2 No 2 (2024): CEMARA: Jurnal Pengabdian Masyarakat Multidisiplin
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Islam Indragiri (UNISI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61672/cemara.v2i2.2878

Abstract

Kegiatan pengabdian ini bertujuan untuk meningkatkan pemahaman siswa MA Al Ishlah Jenggawah Jember mengenai strategi masuk sekolah kedinasan serta mempersiapkan mereka menghadapi seleksi berbasis Computer Assisted Test (CAT) melalui sosialisasi dan simulasi try out. Metode yang digunakan meliputi penyampaian informasi tentang tata cara pendaftaran, strategi belajar, dan pelaksanaan simulasi ujian berbasis CAT. Hasil evaluasi menunjukkan peningkatan pemahaman siswa sebesar 85% serta peningkatan kepercayaan diri dalam menghadapi seleksi. Program ini diharapkan menjadi model berkelanjutan untuk membantu siswa lebih siap bersaing masuk sekolah kedinasan.
Co-Authors Al Jabar, Andi Ali Djamhuri Angga Prasetyo Chatarina Umbul Wahyuni Febrianto, Dony Hermawan, Frengky Hidayat, Muhammad Fajri Muhammad Arwani Nanda, Ririn Fatma Prajna, Deyla Pratama, Yogi Yusuf Hendrawan