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Jurnal Penelitian Sains dan Teknologi Indonesia
Published by Universitas Jember
ISSN : -     EISSN : 29878039     DOI : https://doi.org/10.19184/jpsti.v1i2.223
Core Subject : Economy, Science, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Industrial & Manufacturing Engineering Social Sciences
Jurnal Penelitian Sains dan Teknologi Indonesia (JPSTI) (ISSN : 2987-8039 online - Elektronik) merupakan media ilmiah yang dikelola oleh Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LP2M) Universitas Jember, memuat artikel hasil kajian-kajian penelitian maupun kajian kritis. JPSTI UNEJ diterbitkan setahun dua kali, yaitu pada bulan Juni dan Desember pada setiap tahunnya.
Arjuna Subject : Umum - Umum
Articles 53 Documents
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KARAKTERISTIK PENGERINGAN CABAI BERDASARKAN PERBEDAAN VARIETAS (Capsicum frustescens dan Capsicum annum) DAN DAYA OVEN MICROWAVE Purbasari, Dian; Yosika, Nur Ida Winni; Pambudi, Akbar Setyo; Fitria, Yesi Ihsa
Jurnal Penelitian Sains dan Teknologi Indonesia Vol 3 No 2 (2024): Jurnal Penelitian Sains dan Teknologi Indonesia (JPSTI)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LP2M) Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jpsti.v3i2.4144

Abstract

Chili is a horticultural plant widely cultivated in Indonesia due to its high economic value. The most common chili is large red chili (Capsicum annuum) and bird's eye chili (Capsicum frutescens). The shelf life of chili and traditional post-harvest handling were challenges in chili agribusiness development. One method to extend chili shelf life is drying. This research uses microwave drying methods to determine the best variety and drying power to produce good-quality chili. This study aims to determine the moisture content, color, and drying rate of chili during the drying process. The results indicated that the shortest drying time was achieved at the highest power level of 695 W. At this power level, the moisture content of large red chili was reduced from 84.24% to 0.171% within 12–14 minutes. The moisture content of bird's eye chili at the highest power level of 695 W was reduced from 79.37% to 0.018%. The equilibrium moisture content (Me) with the fastest drying time was achieved at 695 W, with a value of 0.77% for large red chili in 12 minutes, and 0.43% for bird's eye chili in 14 minutes. The highest drying rates for large red chili and bird's eye chili were observed at the 695 W power level. The color properties of the dried chili included a lightness (L) range of 11.77-24.89, redness (a) range of 0.20-3.83, and yellowness (b) range of 0.83 - 2.40.
ANALISIS KEPUASAN KONSUMEN ROTI AMIRAH BAKERY DI KABUPATEN TULUNGAGUNG Hapsari, Shinta Syafrina Endah; Amilia, Winda; Wiyono, Andi Eko; Zuhriyah, Anis K
Jurnal Penelitian Sains dan Teknologi Indonesia Vol 3 No 2 (2024): Jurnal Penelitian Sains dan Teknologi Indonesia (JPSTI)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LP2M) Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jpsti.v3i2.4247

Abstract

Semakin pesatnya persaingan usaha pada perusahaan roti menjadikan perusahaan dituntut untuk terus meningkatkan mutu/kualitas produknya. Amirah Bakery merupakan salah satu industri roti yang hingga kini masih berdiri di Kabupaten Tulungagung dan konsisten melakukan pengembangan terhadap bisnisnya dengan mengedepankan kepuasan pelanggan sebagai prioritas utamanya. Penelitian ini  diharapkan dapat menjawab tingkat kepuasan konsumen roti Amirah Bakery; prioritas atribut produk dan layanan Amirah Bakery; dan rekomendasi perbaikan yang dapat implementasikan di Amirah Bakery untuk menunjang keberlanjutan bisnisnya. Metode yang digunakan dalam penelitian ini yaitu CSI (Customer Satisfaction Index), dan Importance Performance Analysis (IPA). Alat penelitian yang digunakan berupa kuesioner, dan hasil penelitian menunjukkan bahwa pelanggan sangat puas dengan kualitas roti Amirah Bakery dengan nilai CSI sebesar 81,73%, dan perbaikan yang harus diutamakan berdasarkan Importance Performance Analysis adalah atribut 9, 10 dan 20, yaitu kemasan roti, warna roti dan performa pelayanan karyawan toko. Adapun rekomendasi perbaikan yang dapat dilakukan antara lain: mendesain ulang kemasan, mengembangkan inovasi produk, dan perlu adanya himbauan kepada karyawan untuk memahami perilaku yang ideal dalam bekerja.  
ANALISIS KEPUASAN KONSUMEN DAN RANCANGAN STRATEGI PERBAIKAN KUALITAS EDAMAME CRISPY DENGAN METODE QFD Suwardani, Kanaya Sukma Ardha; Suryadharma, Bertung; Amilia, Winda; Firstandika, Leader
Jurnal Penelitian Sains dan Teknologi Indonesia Vol 4 No 1 (2025): Jurnal Penelitian Sains dan Teknologi Indonesia (JPSTI)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LP2M) Universitas Jember

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Abstract

Pesatnya perkembangan industri edamame crispy dan persaingan yang semakin ketat mendorong Kampung Edamame untuk meningkatkan kualitas produk dan inovasi. Penelitian ini bertujuan untuk menganalisis tingkat kepuasankonsumen dan merancang strategi perbaikan kualitas produkmenggunakan metode Quality Function Deployment (QFD). Data diperoleh melalui survei terhadap 60 respondenmenggunakan teknik accidental sampling, wawancara, observasi langsung, dan studi literatur. Analisis dilakukanmelalui QFD Fase I dan II, dengan fokus pada kebutuhankonsumen dan prioritas teknis produk. Hasil penelitianmenunjukkan bahwa atribut utama yang memengaruhikepuasan konsumen adalah kerenyahan, cita rasa, dan kemudahan mendapatkan produk. Prioritas perbaikanmeliputi pengelolaan waktu penggorengan, penerapan SOP, optimasi suhu penggorengan, konsistensi takaran bumbu, dan peningkatan pemasaran online melalui berbagai platform e-commerce. Strategi ini diharapkan dapat meningkatkankualitas produk edamame crispy, memenuhi harapankonsumen, serta memperkuat daya saing Kampung Edamame di pasar makanan ringan sehat.  
ANALISIS TATA LETAK FASILITAS PRODUKSI KOPI MENGGUNAKAN METODE CRAFT (Studi Kasus PT Mulyaningsih Jember) Ramadhan, Rizqi Dhia; Mahardika, Nidya Shara; Purnomo, Bambang Herry; Suryaningrat, Ida Bagus
Jurnal Penelitian Sains dan Teknologi Indonesia Vol 4 No 1 (2025): Jurnal Penelitian Sains dan Teknologi Indonesia (JPSTI)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LP2M) Universitas Jember

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Abstract

ABSTRACT Layout design is a process that involves ways to improve the layout of an industrial company so that the layout used is more efficient and optimal during production. The layout design in this study aims to compare the layout in coffee production using the CRAFT method and the ARC method, to optimize the production flow at PT Mulyaningsih. The application of the CRAFT method obtained the results of 1 iteration where there was a transfer of the green pump department (8) and the mason department (9), the transfer obtained the result of reducing the material handling distance with a distance difference of 18 m with an efficiency of 3.27% and a reduction in material handling costs with a cost difference of Rp 1,022,400 with an efficiency of 6.16%. The application of the ARC method obtained the result of the inconsistency of the degree of proximity with the description of the reason between the rinsing tub department (7) and the mason (9) which should be the rinsing tub department (7) to the green pump department (8) which has an absolute relationship according to the workflow sequence, so that there is a displacement between the green pump department and the mason department to match the degree of proximity relationship. Therefore, comparing the CRAFT method and the resulting ARC method is straightforward, where both the green pump department and the mason department are moved from the data input carried out in the CRAFT method and strengthened by the ARC method, with a close relationship between them.
ANALISIS PENGENDALIAN KUALITAS PRODUK ROTI MANIS MENGGUNAKAN METODE SIX SIGMA (Studi Kasus pada UMKM Mahkota Bakery di Malang) Mahardika, Nidya Shara; Saputri, Luluk; Amilia, Winda; Wiyono, Andi Eko
Jurnal Penelitian Sains dan Teknologi Indonesia Vol 4 No 1 (2025): Jurnal Penelitian Sains dan Teknologi Indonesia (JPSTI)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LP2M) Universitas Jember

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Abstract

A Mahkota Bakery is one of the UMKM engaged in the food sector which was established in 2012 and is located at Jalan Parangargo No. 27, Wagir District, Malang Regency. Some of the products produced include white bread, sweet bread, tarts, and donuts. The problem that often occurs is product defects, especially in sweet bread, namely extrusion defects and burnt bread. The study aims to determine the factors causing defects in sweet bread products and also provide recommendations for quality improvement proposals for sweet bread products. The method used in this study is the six sigma method using DMAIC. The results obtained from this method are in the Pareto diagram to determine the number of defects, namely extrusion defects of 2,105 pcs with a percentage of 59% and also burnt bread of 1,454 pcs with a percentage of 41%. Then determine the cause of the defects and formulate recommendations for improvements, namely the creation of SOP related to specific task divisions, installation of SOP boards, and implementation of SOP. Periodic checks during the baking process and equipment upgrades such as ovens and automatic cake fillers. Keywords: Quality, Defects, Six Sigma, DMAIC
ANALISIS RISIKO KEHILANGAN PASCA PANEN PADA RANTAI PASOK KENTANG DENGAN METODE HOUSE OF RISK Amilia, Winda; Rusdianto, Andrew Setiawan; Hita, Muhammad Arga; Hapsari, Dea Nawang
Jurnal Penelitian Sains dan Teknologi Indonesia Vol 4 No 1 (2025): Jurnal Penelitian Sains dan Teknologi Indonesia (JPSTI)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LP2M) Universitas Jember

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Abstract

Potatoes, as an agricultural vegetable crop, are highly susceptible to damage during post-harvest and distribution processes. Post-harvest activities involve multiple actors, including farmers, agents, market traders, and street vendors. The involvement of numerous actors in the supply chain can lead to damage that affects potato quality. This study aims to analyze the risks of quality loss during post-harvest processes and design handling strategies to reduce supply chain risks for potatoes. The research employs the House of Risk (HOR) method, which consists of two phases. The findings reveal that the types of quality degradation affecting potatoes are primarily due to mechanical damage, classified into abrasion, cracking, puncture, cutting, bruising, splitting, tearing, and skin cracking. These risks were identified as being caused by 10 risk agents. Among them, four key risk agents were selected and analyzed to determine appropriate mitigation strategies. The recommendations for risk management and mitigation actions are expected to minimize the risks of mechanical damage in the potato supply chain in Magetan Regency.
E PENGARUH SUBSTITUSI SERAT AMPAS TEBU TERHADAP KARAKTERISTIK PIRING BIODEGRADABLE BERBASIS GLUKOMANAN DAN KARAGENAN Rusdianto, Andrew Setiawan; Soekarno, Siswoyo; Adindra, Plasida Geustin
Jurnal Penelitian Sains dan Teknologi Indonesia Vol 4 No 1 (2025): Jurnal Penelitian Sains dan Teknologi Indonesia (JPSTI)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LP2M) Universitas Jember

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Abstract

Bioplastics are alternative packaging made from natural polymers, which have the properties of being biodegradable, reduce environmental pollution and are safe for health because they do not contain toxic substances. Bioplastics are made from natural materials. It is hoped that the existence of environmentally friendly plate products can reduce the use of plastic plates in the community so as to reduce the accumulation of excessive plastic waste. The addition of bagasse to environmentally friendly plate products is expected to improve their mechanical properties. There are 3 variations of bagasse fiber size used, namely 60 mesh, 1mm and 3mm. The purpose of this study was to determine the effect of bagasse size variation on tensile strength, elongation, water resistance and biodegradability of eco-friendly plates and to get the best formulation of bagasse size variation as raw material for making eco-friendly plates. The manufacture of environmentally friendly eco-friendly plates used a completely randomized design with one factor and 3 repetitions. Observations made included biodegradability test, water resistance test, tensile strength test and elongation test. The results showed that of the three treatments, the variation of adding 60 mesh bagasse (A) was the best formulation for environmentally friendly plate products. Bioplastic products for plate shape are expected to have strong mechanical properties and can be degraded in the environment.
EVALUASI KARAKTERISTIK FISIK BUBUK BAWANG PUTIH (Allium sativum L.) HASIL PENGERINGAN MENGGUNAKAN OVEN KONVEKSI Purbasari, Dian; Yosika, Nur Ida Winni; Pambudi, Akbar Setyo; Ayun, Qurrota
Jurnal Penelitian Sains dan Teknologi Indonesia Vol 4 No 1 (2025): Jurnal Penelitian Sains dan Teknologi Indonesia (JPSTI)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LP2M) Universitas Jember

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Abstract

Garlic (Allium sativum L.) is an important horticultural commodity widely used as a culinary spice and traditional medicine. Its high moisture content makes it highly perishable, thus requiring appropriate postharvest handling to extend its shelf life. One common method is drying using a convection oven, followed by powdering. This study aimed to evaluate the effect of drying temperature on the physical characteristics of garlic powder. The research was conducted from January to February 2020 at the Agricultural Product Engineering Laboratory, Faculty of Agricultural Technology, University of Jember. A Completely Randomized Design (CRD) was used with three temperature treatments (60°C, 70°C, and 80°C), each replicated twice. Observed parameters included moisture content, drying rate, drying yield, and color values (L*, a*, b*). Results showed that drying temperature significantly affected the physical properties of garlic powder. Higher temperatures reduced moisture content and L* values, while increasing a* values and water absorption capacity. These findings indicate that drying temperature is a critical factor influencing the final physical quality of garlic powder.
RISIKO PRODUKSI USAHATANI JAMUR TIRAM PUTIH (Pleurotus ostretaus) DI KECAMATAN PANDAAN KABUAPTEN PASURUAN Rani, Refalina Atikah; Kusmiati, Ati
Jurnal Penelitian Sains dan Teknologi Indonesia Vol 4 No 1 (2025): Jurnal Penelitian Sains dan Teknologi Indonesia (JPSTI)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LP2M) Universitas Jember

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Abstract

Jamur tiram putih merupakan komoditas holtikultura sayuran yang bergizi tinggi dan berpotensi untuk dikembangkan. Permintaan jamur tiram putih yang tinggi menjadikan prospek yang baik bagi usahatani jamur tiram. Usahatani jamur tiram putih tidak membutuhkan lahan yang luas tetapi membutuhkan suhu dan kelembapan khusus. Usahatani jamur tiram putih cukup mudah untuk dijalankan dan hasil panennya bisa langsung dijual. Namun, tidak sedikit petani jamur yang mengalami kendala selama proses produksinya. Provinsi Jawa Timur menyumbang sebesar 55% dari keseluruhan total produksi jamur tiram putih yang ada di Indonesia. Salah satu daerah penghasil jamur tiram di Provisi Jawa Timur adalah Kecamatan Pandaan Kabupaten Pasuruan. Petani jamur di daerah tersebut mengalami kendala adanya risiko produksi pada usahataninya sehingga menyebabkan penurunan pada hasil produksi. Tujuan dilakukan penelitian ini yaitu untuk mengetahui tingkat risiko, sumber risiko, dan strategi mitigasi risiko yang efektif dilakukan petani jamur tiram di Kecamatan Pandaan Kabupaten Pasuruan. Metode analisis data yang digunakan pada penelitian ini yaitu analisis koefisien variasi (CV) dan analisis House of Risk (HOR). Peneliti menggunakan metode total sampling dalam menentukan sampel yang digunakan pada penelitian ini. Hasil penelitian menunjukkan bahwa diperoleh nilai koefisien variasi (CV) sebesar 0,25. Artinya nilai 0,25 < 0,5 maka risiko yang dihadapi petani dalam kategori rendah. Terdapat 3 sumber risiko prioritas pada usahatani jamur tiram yang teridentifikasi. Diperoleh 5 aksi mitigasi prioritas yang dapat dilakukan petani untuk memitigasi ketiga risiko prioritas tersebut..
PENGARUH PERBEDAAN KONSENTRASI GEL OKRA HIJAU DAN KARAGENAN TERHADAP KARAKTERISTIK JELLY DRINK OKRA HIJAU (Abelmoschus Esculentus L.) Rosyada, Amrina; Masahid, Ardiyan Dwi; Brihatsama; Priyantono, Eko
Jurnal Penelitian Sains dan Teknologi Indonesia Vol 4 No 1 (2025): Jurnal Penelitian Sains dan Teknologi Indonesia (JPSTI)
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat (LP2M) Universitas Jember

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Abstract

The potential of green okra lies in its high dietary fiber component. Efforts to utilize dietary fiber in green okra include processing it into jelly drink product. The aim of this is to determine the influence of adding concentrations of green okra gel and carrageenan on the physical, chemical and organoleptic properties, as well as to determine the appropriate formulation of different concentrations of green okra gel and carrageenan to produce jelly drink green okra with the best physical, chemical and organoleptic properties. The experimental design used was a factorial completely randomized design (CRD) consisting of green okra gel concentrations (A) of 15%, 30%, 45%, 60%, and carrageenan concentrations (B) of 0.30% and 0.40%. The observational data were analyzed using ANOVA followed by DMRT test. Based on the research results, it can be concluded that the differences in green okra gel concentration and carrageenan concentration significantly affect the a* (redness), b* (yellowness), total solids, syneresis, pH, color liking score, aroma, taste, texture, and overall liking. The effectiveness values indicate that the best-treated green okra jelly drink has a pH value of 3.42, syneresis of 30.12%, total solids content of 14.17%, and dietary fiber content of 0.81%. In the organoleptic test, color liking score was 6.68 (like), taste 6.0 (like), aroma 5.64 (somewhat like), texture 5.48 (somewhat like), and overall liking 6.16 (like).

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