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Perbandingan Mutu Tepung Karagenan Hasil Ekstraksi Metode Pemanas Ohmic Dan Konvensional Iswahyono Iswahyono; Siti Djamila; Amal Bahariawan; Meta Fitri Rizkiana
JOFE : Journal of Food Engineering Vol. 1 No. 1 (2022): January
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (279.748 KB) | DOI: 10.25047/jofe.v1i1.3070

Abstract

The ohmic technology was applied for the carrageenan extraction process from seaweed (Eucheuma cattoni). The principle of ohmic technology is based on passing an electric current through seaweed and triggering its internal energy. The objectives of this study were to compare two different extraction methods using the ohmic and conventional heaters in terms of the quality of carrageen flour. This study were conducted by two different heating sources during the seaweed extraction process, i.e., ohmic heating and conventional heating from a gas stove. Each method was repeated three times. The extracted filtrates were dried, milled, and sieved using an 80-mesh sieve, then the quality of carrageenan flour was measured. Quality of extracted carrageenan flour using the ohmic and conventional heating methods are: 1) the extraction yield of 45%; 42%, 2) moisture content 10%; 18%, 3) white degree 77.63%; 74.27%, 4) viscosity 6.02 cp; 4.57 cp and 5) gel strength 174 gr / cm2: 159 gr / cm2. The result of statistical analysis between two methods with α 5% showed no significant difference in yield parameters however significantly different for water content, white degree, viscosity, and gel strength. The quality of extracted carrageenan flour of the ohmic heating method was better compared to the conventional heater.
Implementasi Pengolahan Limbah Cair Industri Tempe Berbasis Eco-Friendly Dan Zero Waste pada UKM Tempe Di Desa Jambesari Kabupaten Bondowoso Bekti Palupi; Istiqomah Rahmawati; Meta Fitri Rizkiana; Muhammad Reza; Boy Arief Fachri; Reswara Musyafa; Regita Gustiayu Pramisti Maharani; Mohammad Nor
Dedikasi:Jurnal Pengabdian kepada Masyarakat Vol 3, No 1 (2022): Jurnal Dedikasi
Publisher : Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31479/dedikasi.v3i1.208

Abstract

Salah satu industri tempe yang ada di Desa Karang Malang, Jambesari, Bondowoso, Jawa Timur yaitu Industri Tempe Fatimah. Tempe Fatimah mendapatkan respon positif dari masyarakat sehingga produksinya pun meningkat. Peningkatan produksi tentunya berimbas dengan meningkatnya limbah yang dihasilkan sehingga perlu dilakukan pengelolaan limbah agar tidak menimbulkan isu permasalahan lingkungan. Secara umum, permasalahan mitra terkait yang teridentifikasi meliputi 3 hal yaitu (1) proses pembuatan tempe menghasilkan limbah cair yang dihasilkan mempunyai karakteristik bau tidak sedap dan berwarna yang dapat mencemari lingkungan atau kualitas air sekitar; (2) limbah cair yang dihasilkan belum dilakukan penanganan dan pengolahan secara khusus; dan (3) belum mempunyai alat pengolah limbah cair tempe sehingga pengolahan limbah cair industri tempe belum ditangani secara tepat. Oleh karena itu, beberapa solusi yang dapat ditawarkan kepada mitra usaha industri tempe Fatimah antara lain (1) memberikan pengetahuan atau wawasan tentang kandungan kimia, dampak dan bahaya limbah cair industri tempe terhadap lingkungan dan kehidupan manusia; (2) memberikan pengetahuan atau wawasan tentang metode dan teknologi pengolahan limbah yang dapat diaplikasikan dalam menangani limbah cair industri tempe; dan (3) meningkatkan keterampilan mitra usaha melalui penggunaan dan perawatan Teknologi Tepat Guna Mesin Pengolah Limbah Cair Tempe sebagai solusi pencemaran limbah cair tempe pada lingkungan hidup. 
Effect of Immersion Concentration in Salt Solution, Drying Time and Air Velocity on Drying Wet Noodles Using a Tray Dryer and Solar Assistance Maktum Muharja; Siska Nuri Fadilah; Achri Isnan Khamil; Rizki Fitria Darmayanti; Ditta Kharisma Yolanda Putri; Meta Fitri Rizkiana; Viqhi Aswie; Badril Azhar
Jurnal Teknik Kimia dan Lingkungan Vol. 7 No. 1 (2023): April 2023
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (731.048 KB) | DOI: 10.33795/jtkl.v7i1.340

Abstract

The noodles in the market are dry noodles with 8-10% water content. Dried noodles have a longer shelf life because they are less prone to mold growth. Drying noodles with the help of the sun and tray dryers are currently an option because they are efficient and do not require a lot of energy. Reduction of water content is also optimized by soaking wet noodles in salt water. This study aims to determine the effect of soaking noodles in salt water and the flow rate to decrease the water content of noodles. The study began with soaking wet noodles in a salt solution with a variation of 50-150 g/L, then dried for 1 hour using a hybrid method and tray dryer with a flow rate variation of 1.2-3.3 m/s. Observations were made at intervals of 0-1 hour. The results showed that the time and speed of the flow rate can reduce the humidity in the drying chamber of the tray dryer. The lowest water content reduction of up to 11% was obtained when soaking wet noodles in 150 g/L salt solution and at the highest flow rate of 3.3 m/s. The ANOVA results show that the drying method with tray dryer is more optimal than hybrid drying. Thus, this method can be a solution to optimize the noodle drying process quickly and efficiently.
Microwave-Assisted Hydrolysis Batang Tembakau untuk Produksi Gula Pereduksi sebagai Bahan Baku Bioetanol Bekti Palupi; Bimo Bayu Aji; Mizanurafi’ Ghifarhadi Prasiefa; Ditta Kharisma Yolanda Putri; Istiqomah Rahmawati; Boy Arief Fachri; Meta Fitri Rizkiana; Helda Wika Amini
Jurnal Teknologi Vol 10, No 2 (2023): Jurnal Teknologi
Publisher : Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31479/jtek.v10i2.225

Abstract

Tumbuhan tembakau yang diproduksi dengan skala besar di Indonesia ternyata memiliki problematika, yaitu limbah dari batangnya sekitar 2.000.000 ton yang tersedia setiap tahunnya dan belum dimanfaatkan. Batang tumbuhan secara umum mengandung lignin, selulosa, dan hemiselulosa, termasuk batang tembakau yang menjadi limbah. Kandungan lignin terlebih dahulu dihilangkan dengan proses pretreatment basa sebelum hidrolisis. Proses hidrolisis yang menggunakan microwave-assisted dengan basa akan mengkonversi selulosa dan hemiselulosa menjadi gula pereduksi yang selanjutnya difermentasi untuk memperoleh bioetanol. Proses hidrolisis dalam penelitian ini menggunakan 3 gram serbuk batang tembakau yang sudah dipretreatment dan dicampurkan dengan larutan natrium hidroksida (NaOH) dengan rentang konsentrasi 2 - 5%. Selanjutnya diproses menggunakan microwave untuk diiradiasi dengan daya 250 - 350 watt selama 5 - 15 menit. Penelitian ini menggunakan Software Design Expert yang disesuaikan dari pendekatan Response Surface Methodology (RSM) serta model Central Composite Design (CCD) sehingga didapatkan 20 kali running pada penelitian ini. Hasil gula pereduksi paling tinggi sebesar 7,40 mg/mL didapatkan pada percobaan ke-17 dengan konsentrasi larutan NaOH 2%, daya microwave 350 watt, dan selama 15 menit.
Program Pemasangan Sistem Pemanenan Air Hujan di Masjid Al-Ikhlas Puri Bunga Nirwana Jember Retno Utami Agung Wiyono; Abdur Rohman; Meta Fitri Rizkiana; Joseph Dwi Kurniawan Manno
Warta LPM WARTA LPM, Vol. 25, No. 3, Juli 2022
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1850.866 KB) | DOI: 10.23917/warta.v25i3.1024

Abstract

Air termasuk sumber daya alam yang dapat diperbaharui. Akan tetapi pada kenyataannya, krisis air terus-menerus terjadi sehingga air sumur yang merupakan air tanah harus dihemat penggunaannya. Sebelum program pengabdian ini dilakukan, air sumur merupakan satu-satunya sumber air yang digunakan para jemaah di Masjid Al-Ikhlas, Puri Bunga Nirwana, Jember. Dengan adanya pandemi Covid-19, maka kebutuhan air di masjid semakin meningkat karena jemaah masjid dianjurkan untuk lebih sering mencuci tangan. Di sisi lain, curah hujan di kawasan masjid ini pada musim hujan cukup tinggi. Karena itu, diperlukan upaya untuk memenuhi kebutuhan air jemaah dengan memanfaatkan air hujan untuk mengurangi konsumsi air sumur. Tujuan program pengabdian ini adalah memasang Sistem Pemanenan Air Hujan (PAH) di Masjid Al-Ikhlas untuk menghemat penggunaan air sumur. Sistem PAH memanfaatkan sisi atap sebelah Timur dan Utara masjid untuk menampung air hujan. Air hujan yang ditampung di talang kemudian disalurkan ke pipa yang dihubungkan ke tandon pertama. Dari tandon pertama, air masuk ke dalam filter yang kemudian dihubungkan ke tandon kedua tempat penyimpanan air yang sudah bersih. Setelah itu, air disalurkan melalui pompa untuk masuk ke tandon utama masjid yang digunakan untuk mensuplai kebutuhan air masjid. Hasil dari program pengabdian ini adalah bahwa sistem PAH betul-betul mengurangi konsumsi air sumur. Pada waktu-waktu tertentu, air dari sistem PAH dapat memenuhi kebutuhan air secara penuh sehingga air sumur tidak perlu digunakan. Dapat disimpulkan bahwa PAH sangat bermanfaat untuk mensuplai air di masjid sekaligus mengurangi konsumsi air sumur terutama saat musim penghujan. Setelah dipasang sekitar 6 bulan, perlu dilakukan perawatan terhadap sistem PAH di antaranya memperkuat sistem penyangga pada pipa, mengganti filter air. Selain itu, diharapkan dapat dibuat otomatisasi sistem sehingga penarikan air dari tandon PAH ke tandon utama masjid tidak perlu dilakukan secara manual.
Evaluasi Kinerja Generator Microbubble Terhadap Kondisi Nutrisi dan Respon Pertumbuhan Kailan (Brassica Oleraceae) Secara Hidroponik Sistem DFT Di Dalam Greenhouse Habib Ihza Mahendra; Iswahyono Iswahyono; Siti Djamila; Amal Bahariawan; Meta Fitri Rizkiana
JOFE : Journal of Food Engineering Vol. 2 No. 3 (2023): July
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jofe.v2i3.4140

Abstract

The kailan plant (Brassica oleraceae) has high commercial potential due to its high nutritional content, delicious taste, and high market interest. Kailan could be cultivated through hydroponic planting by utilizing limited land. The DFT hydroponic system is an option due to faster and constant growth, shorter harvest period, and easy maintenance. If the power goes out, the plants can still survive. One of the weaknesses is the limited oxygen availability due to poor circulation. This study aimed to determine the effect of using a microbubble generator to enrich oxygen on nutritional conditions and the growth response of kailan plants compared to plant growth without a microbubble generator. The applied method in this study was to compare nutritional content and plant growth responses between using a microbubble generator and without utilizing a microbubble generator. The results showed that using the microbubble generator affected nutrients' concentration, temperature, and pH and positively impacted plant growth responses: number of leaves, root condition and plant weight at harvest period.
TTG Pembuatan Virgin Coconut Oil (VCO) untuk Peningkatan Ekonomi Masyarakat Desa Nogosari Kabupaten Jember Bekti Palupi; Istiqomah Rahmawati; Meta Fitri Rizkiana; Firsta Retnaningtyas Udroto; Lailatul Krisna Abdullah; Ariel Seanhan Haezer; Nanda Ayudiyah Andriani
Sewagati Vol 7 No 6 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v7i6.733

Abstract

Indonesia merupakan produsen kelapa terbesar dunia setelah Filipina, India, dan Brazil. Kabupaten Jember, Provinsi Jawa Timur adalah salah satu sentra penghasil kelapa dengan produksi sebesar 13.601 ton/tahun. Komoditas kelapa tersebut diantaranya terdapat di Desa Nogosari, Kecamatan Rambipuji, Kabupaten Jember. Desa Nogosari merupakan desa terluas di Kecamatan Rambipuji dengan luas sekitar 1580 Ha. Permasalahan yang dihadapi masyarakat Desa Nogosari yaitu belum teroptimalkannya pemanfaatan kelapa karena masih dikonsumsi sendiri untuk kebutuhan rumah tangga atau dijual secara langsung. Dengan melimpahnya produksi kelapa di Desa Nogosari, maka hal tersebut berpotensi menjadi sumber daya alam yang dapat dioptimalkan oleh penduduk setempat. Hal ini yang mendasari tim pengabdian dari Program Studi Teknik Kimia Universitas Jember untuk melakukan sosialisasi dan pelatihan serta pendampingan tentang pengolahan kelapa menjadi Virgin Coconut Oil (VCO). Hasil sosialisasi dan pelatihan menunjukkan bahwa masyarakat Desa Nogosari Kabupaten Jember mampu mengolah buah kelapa menjadi Virgin Coconut Oil. Produk VCO yang dihasilkan diharapkan dapat meningkatkan kemandirian masyarakat secara ekonomi atau sosial.
Biobutanol Production Using High Cell Density Fermentation in a Large Extractant Volume Rizki Fitria Darmayanti; Yukihiro Tashiro; Kenji Sakai; Kenji Sanomoto; Ari Susanti; Bekti Palupi; Meta Fitri Rizkiana
International Journal of Renewable Energy Development Vol 9, No 3 (2020): October 2020
Publisher : Center of Biomass & Renewable Energy, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijred.2020.29986

Abstract

Biobutanol is well known as a suitable substitute for gasoline, which can be applied without engine modification. Butanol toxicity to the producer strain causes difficulties to grow strain of higher than 4 g/L dry cell weight and to produce butanol higher than 20 g/L. Fermentation using high initial cell density has been reported to enhance butanol productivity. In addition, oleyl alcohol has been recognized for effective extraction of butanol because of its selectivity and biocompatibility with reduced the effect of toxicity. Butanol fermentation with high cell density and large extractant volume has not been reported and is expected to improve butanol production in a minimum medium volume setting. Clostridium saccharoperbutylacetonicum N1-4, C. beijerinckii NCIMB 8052 (8052), and C. acetobutylicum ATCC 824 (824) were used in this study. Three kinds of media, TYA, TY, and TY-CaCO3, were used in this conventional extractive fermentation. Then, in situ extractive fermentation with Ve/Vb ratios at 0.1, 0.5, 1.0, and 10 were used. Total butanol concentration was defined as the broth-based total butanol, which is the total amount of butanol produced in broth and extractant per the volume of broth. TYA medium yielded the highest total butanol concentrations at N1-4 (12 g/L), 8052 (11 g/L), and 824 (15 g/L), and the highest partition coefficient (3.7) among the three media with similar Ve/Vb ratio at 0.5. N1-4 yielded the highest increment of total butanol production (22 g/L) in the extractive fermentation with high cell density. Low butanol concentration of 0.8 g/L in the broth was maintained using the extractant at a broth volume ratio (Ve/Vb) much lower than 4.4 g/L with a ratio of 0.5. Ve/Vb ratio of 10 which provided 2-fold higher total butanol concentration (28 g/L) than that of 11 g/L obtained using a Ve/Vb ratio of 0.5. These results indicated that a larger volume of extractant to broth improved total butanol concentration by reducing butanol toxicity and led to high medium based butanol yield in fermentation using high cell density. 
Optimization of Microwave-Assisted Alkali Pretreatment for Enhancement of Delignification Process of Cocoa Pod Husk Maktum Muharja; Rizki Fitria Darmayanti; Bekti Palupi; Istiqomah Rahmawati; Boy Arief Fachri; Felix Arie Setiawan; Helda Wika Amini; Meta Fitri Rizkiana; Atiqa Rahmawati; Ari Susanti; Ditta Kharisma Yolanda Putri
Bulletin of Chemical Reaction Engineering & Catalysis 2021: BCREC Volume 16 Issue 1 Year 2021 (March 2021)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.16.1.8872.31-43

Abstract

In this study, the optimization of microwave-assisted alkaline (MAA) pretreatment is performed to attain the optimal operating parameters for the delignification of cocoa pod husk (CPH). The MAA performance was examined by heating the CPH solid with different particle sizes (60–120 mesh) and NaOH solution with a different sample to a solvent (SS) ratio (0.02–0.05 g/L), for short irradiation time (1–4 min). Box-Behnken Design (BBD) was utilized to optimize the percentage of lignocellulose composition changes. The results show that by enlarging particle size, the content of lignin and cellulose decreased while hemicellulose increased. By prolong irradiation time, the content of lignin and hemicellulose decreased while cellulose elevated. On the other hand, increasing the SS ratio was not significant for hemicellulose content changes. From FTIR and SEM characterization, the MAA drove the removal of lignin and hemicellulose of CPH and increased cellulose slightly. Supported by kinetic study which conducted in this work, it was exhibited that MAA pretreatment technology is an effective delignification method of CPH which can tackle the bottleneck of its commercial biofuel production. Copyright © 2021 by Authors, Published by BCREC Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0). 
Optimization of Ulva sp. Decomposition using H2SO4 with Microwave-Assisted Hydrolysis Method as Feedstock of Bioethanol Palupi, Bekti; Rizalluddin, Muhammad; Septianti, Kiki; Rahmawati, Istiqomah; Fachri, Boy Arief; Rizkiana, Meta Fitri; Amini, Helda Wika
CHEESA: Chemical Engineering Research Articles Vol. 6 No. 1 (2023)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25273/cheesa.v6i1.14682.13-25

Abstract

Bioethanol is a renewable energy used to reduce dependence on fossil fuels, which have negative impacts on the environment. Furthermore, Ulva sp. contains high levels of carbohydrates, making it potentially suitable as a raw material for bioethanol production. Therefore, this study aims to determine the optimal decomposition process using the microwave-assisted hydrolysis method with an acid solvent (H2SO4), by examining the effects of acid concentration, hydrolysis time, and microwave power. Optimization was carried out using several parameters such as hydrolysis time, microwave power, and the ratio of raw materials to solvents. The ANOVA test results showed that the hydrolysis variable parameter had a significant effect on the reducing sugar content obtained, evidenced by the R2 value of 0.9892. The highest reducing sugar content of 19.71 mg/mL was produced under the operating conditions of 15 min hydrolysis time, 450 W microwave power, and 0.065 g/mL ratio of raw material to solvents.
Co-Authors Abdul Malik Karim Amrullah Abdur Rohman Achri Isnan Khamil Adinda Yufriza Adrian, Febri Adriansyah, Muhamad Afwal, Diza Raudhatul Aina Christalia Rinastiti Amal Bahariawan Andreyan Poerwo Negoro Anggraini, Ranita Anggi Annisa, Yasmin Ari Susanti Ari Susanti Ari Susanti Ariel Seanhan Haezer Atiqa Rahmawati Atiqa Rahmawati Aziz, Mohamad Naufal Nizaar Badril Azhar Bekti Palupi Bimo Bayu Aji Boy Arief Fachri Boy Fachri Devara, Arighy Zahirah Faiqy Dianita Ivana Permata Dini Rahmawaty Ditta Kharisma Yolanda Putri Elisah, Nor Fachri, Boy Fakhri Arkaan Humaidi Fandora, Ardan Jauza Faqih, Hana Farwah, Zilma Aliyah Felix Arie Setiawan Firmansyah, Alex Firsta Retnaningtyas Udroto Gregah Pangayoman Hartanto P Habib Ihza Mahendra Habibatul Inayah Harti Arini Helda Wika Amini Helda Wika Amini Herdianto, Dimas Nur Humaidi, Fakhri Arkaan Husna Wardati Indrayani, Lilin Intan Hardiatama Intan Permatasari Istiqomah Rahmawati Istiqomah Rahmawati Iswahyono Iswahyono Joseph Dwi Kurniawan Manno Kenji Sakai Kenji Sanomoto Lailatul Krisna Abdullah Lestari, Afrila Tutut Dwijati Maharani, Regita Gustiayu Pramisti Maktum Muharja Mizanurafi’ Ghifarhadi Prasiefa Mohammad Nor Muhammad Ilham Muhammad Reza Muhammad Reza Muharja, Maktum Nanda Ayudiyah Andriani Nikita Meidi Nugraha, Reva Edra Nugroho, Yeremia Prasetya Nurani, Yukti Nurjannah, Lailia Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah, Nurtsulutsiyah Nurul Hidayati Pradipta, Shima Nuril Putri Agustin, Mawardhi Nabilla Rachman, Darryl Akeyla Rafif, M. Attar Rahman, Agus Rahmawati, Atiqa Raygita May Hastuti Regita Gustiayu Pramisti Maharani Reswara Musyafa Retno Utami Agung Wiyono Rizalluddin, Muhammad Rizki Fitria Darmayanti Rizki Fitria Darmayanti Rizki Fitria Darmayanti Rohmah, Fira Ulvatur Sakai, Kenji Sanomoto, Kenji Santosa, Iliya Kartika Saputri, Ocha Sa’roni, Achmad Septianti, Kiki Shabrina, Nadhilah Shofiah , Laila Nur Sholeha, Irdatus Siska Nuri Fadilah Siti Djamila Sonya Hakim Raharjo Susilowati Susilowati Tarigan, Eigiya Nina Tashiro, Yukihiro Ulfiani, Khoirun Nisya' Viqhi Aswie Wardani, Salza Belila Kusuma Wardhani, Maharani Tri Wiwik Pratiwi Yakub Hendrikson Manurung Yohanes Yohanes Yukihiro Tashiro Zuhriah Mumtazah