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All Journal Bulletin of Chemical Reaction Engineering & Catalysis UNEJ e-Proceeding SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan CHEESA: Chemical Engineering Research Articles Jurnal Teknologi Dedikasi: Jurnal Pengabdian kepada Masyarakat KARYA: Jurnal Pengabdian Kepada Masyarakat Jurnal Pijar MIPA Journal of Biobased Chemicals (JOBC) Sewagati Jurnal Teknik Kimia dan Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Hasil Pengabdian Kepada Masyarakat Universitas Jember
Ditta Kharisma Yolanda Putri
Department Of Chemical Engineering, Faculty Of Engineering, Universitas Jember, Jalan Kalimantan 37, Jember 68121, Indonesia
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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 : Department of Chemical Engineering - Diponegoro University

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). 
The EFFECT OF INGREDIENTS PRETREATMENT ON ESSENTIAL OIL EXTRACTION FROM LEAVES OF CINTRONELLA WITH SOLVENT-FREE MICROWAVE EXTRACTION METHOD: STUDY OF PHYSICAL CHARACTERISTICS Ditta Kharisma Yolanda Putri; Safira Nur Oktavia; Boy Arief Fachri
UNEJ e-Proceeding 2022: E-Prosiding Kolokium Hasil Penelitian dan Pengabdian kepada Masyarakat
Publisher : UPT Penerbitan Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The objective of this study was to determine the effect of material pretreatment on the extraction process using the solvent-free microwave extraction method with the pretreatment of the material being air-dried for 48 hours at room temperature of 25-28OC. Other pretreatment was done by cutting the size of the material, namely 1 cm, 3 cm, and 5 cm. This research was conducted using a microwave with a power of 300 watts, 450 watts, and 600 watts. The extraction times used were 30 minutes, 60 minutes, and 90 minutes. Physical characteristics were tested by observing color, specific gravity, and solubility in 80% ethanol. The results obtained in this study by pretreatment of materials with the drying method in the wind - aerated have a significant effect on the yield of essential oils produced, the highest yield obtained is 2.106% compared to fresh ingredients with the same operating conditions fresh ingredients produce only produces the highest yield of 1.406%. The results of the physical characteristics test of color, specific gravity, and solubility in 80% ethanol on both materials have met the standard of SNI 06-3953-1995, but there is no significant difference. The optimal operating conditions in this study were when the power was 450 watts with a material size of 3 cm, and an operating time of 90 minutes for materials that were pretreated using the wind-air method or with fresh ingredients. Keywords: Solvent-free microwave extraction, pretreatment, physical characteristics.
Penerapan Teknologi Tepat Guna Alat Ekstraksi Minyak Atsiri untuk Pengolahan Limbah Kulit Jeruk di Desa Umbulrejo Kecamatan Umbulsari Kabupaten Jember Zuhriah Mumtazah; Boy Arief Fachri; Ditta Kharisma Yolanda Putri; Istiqomah Rahmawati; Bekti Palupi; Tri Elok Setya Megasari; Dianavita Fatimah
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.v3i1.212

Abstract

Perkebunan jeruk di Desa Umbulrejo, Kecamatan Umbulsari, Kabupaten Jember menimbulkan permasalahan lingkungan. Jeruk yang telah dipanen umumnya akan disortir terlebih dahulu. Jeruk yang tidak masuk ke dalam kriteria akan dibuang dan dibiarkan begitu saja menjadi limbah. Oleh karena itu, kegiatan ini bertujuan untuk menyadarkan masyarakat akan pengelolaan limbah jeruk yang benar. Limbah jeruk, khususnya pada kulit jeruk dapat dimanfaatkan menjadi minyak atsiri dan lilin aromaterapi. Limbah kulit jeruk diekstraksi untuk mendapatkan minyaknya menggunakan metode ekstraksi padat-cair. Diharapkan kedepannya seluruh masyarakat di Desa Umbulrejo dapat memanfaatkan limbah jeruk agar menjadi produk yang memiliki nilai ekonomis yang lebih tinggi. Hasil dari program ini adalah meningkatnya pengetahuan masyarakat tentang pemanfaatan limbah kulit jeruk menjadi minyak atsiri dan lilin aromaterapi
Pemanfaatan Sampah Organik untuk Produksi Biogas di Lembaga Pemasyarakatan Klas II A Jember dengan Melibatkan Narapidana Maktum Muharja; Rizki Fitria Darmayanti; Ditta Kharisma Yolanda Putri; Atiqa Rahmawati
Sewagati Vol 7 No 1 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1833.399 KB) | DOI: 10.12962/j26139960.v7i1.443

Abstract

Kabupaten Jember memiliki Lembaga Pemasyarakatan (Lapas) klas II A yang berlokasi di tengah kota Jember.  Sampah yang dihasilkan di Lapas cukup banyak. Jumlah sampah yang dihasilkan semakin meningkat seiring dengan meningkatnya jumlah penghuni Lapas. Namun, jika sampah yang ada tidak dimanfaatkan dengan baik akan langsung mencemari lingkungan. Solusi yang ditawarkan pada kegiatan ini adalah mendapatkan sumber energi baru agar lebih ekonomis. Solusi tersebut dilakukan dengan cara melaksanakan pengabdian berupa pemasangan perangkat pengolah biogas untuk Lapas Jember serta sosialisasi dan demonstrasi penggunaan alat. Metode yang dilaksanakan yaitu dengan cara survey, instalasi alat, dan pelaksanaan sosialiasi. Pengabdian ini menghasilkan teknologi tepat menggunakan alat fermentor biogas, dengan bahan baku yang dimasukkan ke dalam fermentor berupa sampah organik, air, dan rumen (kotoran sapi). Uji coba alat fermentor tersebut telah menghasilkan biogas dan dapat disosialisasikan kepada penghungi Lapas Klas IIA Jember.
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.
Optimization of Essential Oil Extraction of Beluntas (Pluchea Indica L.) Leaves by Using Solvent-Free Microwave Extraction Nur Karima; Nova Chintya Kurniawati; Boy Arief Fachri; Istiqomah Rahmawati; Bekti Palupi; Mahfud Mahfud; Ditta Kharisma Yolanda Putri; Atiqa Rahmawati; Badril Azhar; Maktum Muharja
Jurnal Teknik Kimia dan Lingkungan Vol. 6 No. 2 (2022): October 2022
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1540.312 KB) | DOI: 10.33795/jtkl.v6i2.339

Abstract

Beluntas (Pluchea Indica L.) which commonly used as astringent and antipyretic has a high potential for the feedstock of essential oil production. The objective of this work is to optimize solvent-free microwave extraction (SFME) of Beluntas leaves by using response surface methodology (RSM). Box-Behnken Design with the variations of extraction time (60-120 min), feed/distiller ratio (0.06-0.1 g/ml), and heating power (150-450 W) was utilized to optimize essential oil yield. The feed/distiller ratio factor had the highest significant effect on the essential oil yield (P<0.05). Essential oil yield increased as the increase of oil heating power and time extraction, and vice versa. On the other hand, the increase in the feed/distiller ratio gave a negative impact on the essential oil yield. The maximum essential oil yield using SFME method of 0.2728 b/b% was obtained for the optimized condition of extraction time of 90 min, microwave heating power of 450 W, and feed/distiller ratio of 0.06.
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.
Pemberdayaan Petani Melalui Inovasi Biochar sebagai Solusi Pengganti Pupuk Kimia di Desa Grenden Kecamatan Puger Kabupaten Jember Ditta Kharisma Yolanda Putri; Zuhriah Mumtazah; Diana Permata Nur Mifdatun Jannah; Lailatul Krisna Abdullah
Sewagati Vol 7 No 5 (2023)
Publisher : Pusat Publikasi ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j26139960.v7i5.565

Abstract

Indonesia merupakan negara agraris yang memiliki potensi besar dalam menghasilkan pangan karena lahan tanah pertanian yang luas. Lahan pertanian di Indonesia mengalami degradasi lahan sebagai akibat kurang tepatnya dalam pengelolaan. Biochar merupakan salah satu solusi yang berupa padatan kaya akan karbon terbuat dari bahan organik diproses melalui pembakaran dengan sedikit oksigen. Salah satu bahan baku pembuatan biochar adalah sekam padi. Desa Grenden merupakan desa terbesar di Kecamatan Puger dengan luas wilayah yakni 1.111.690 m2, dimana sebagian wilayahnya masih tergolong tanah sawah aktif. Permasalahan petani di Desa Grenden ini adalah kurangnya ketersediaan subsidi pupuk dan kurangnya sosialisasi dari pihak terkait penggunaan atau pemanfaatan bahan-bahan limbah pasca panen sebagai alternatif pupuk organik. Hal ini yang mendasari untuk melakukan sosialisasi dan pelatihan serta pendampingan tentang bagaimana mengolah limbah sekam padi menjadi biochar. Metode pengabdian yang dilakukan berupa sosialisasi dan pelatihan pengolahan limbah sekam padi menjadi biochar. Sosialisasi dan pelatihan diikuti oleh 20 orang dari kelompok tani. Hasil sosialisasi dan pelatihan biochar dapat diaplikasikan serta dapat memunculkan ide UMKM berupa penjualan biochar bagi warga Desa Grenden.
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). 
Extraction of Basil Leaves Essential Oil using Microwave Assisted Hydrodistillation Method: Physical Characterization and Antibacterial Activity Putri, Ditta Kharisma Yolanda; Putri, Salsabila Ananda; Nugraha, Briantara Agung; Fachri, Boy Arief; Palupi, Bekti
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.v6i1.14639.1-12

Abstract

Basil oil can be obtained from basil leaves by non-extraction methods, namely Microwave Assisted Hydrodistillation (MAHD). Therefore, this research aims to determine the yield percentage, essential oil composition by GC-MS, physical characteristics, and antibacterial activity of basil essential oil. The highest yield of 0.3076% was obtained at the optimum condition, which included a microwave power of 300 W, a mass-to-volume solvent ratio (F/S) of 0.75 g/mL, a raw material size of ± 1.75 cm, and an extraction time of 90 min. The results of the analysis of variance showed that all process parameters used had a significant effect on the yield obtained. Basil oil exhibited a larger inhibition zone against Escherichia coli bacteria (16.38 mm) which tended to be stronger than Staphylococcus aureus (5.95 mm) and was classified as moderate. The main components contained in the basil oil were E-Citral (46.79%) and Z-Citral (38.17%). The physical characteristic test showed that the basil oil was soluble in 96% ethanol after a ratio of 1:9, with 1 ml of basil oil compared to 9 ml of ethanol. The density of basil oil at 0.961 g/mL also complied with the standard value according to the Essential Oil Association (EOA) of Ocimum basilicum Essential Oil. These results showed revealed that the parameter analyzed using oil yields at operating conditions produced the most optimum yield value.
Co-Authors Achri Isnan Khamil Adiana, Bernanda Delta Adinda Yufriza Afred, Merymistika Yufrani ahmad rizal Aini, Dwi Intan Noer Ainia, Hilda Huril Akmal, Gavinda Tsubutul Al Fajri, Maktum Muharja Alifia Rahma Putri Neysella Amalia, Rima Andini, Angger Andreyan Poerwo Negoro Ansori Ansori Ari Susanti Ari Susanti Atiqa Rahmawati Atiqa Rahmawati Atiqa Rahmawati Atiqa Rahmawati AYU WULANDARI Azizi, Hosshofil Azhar Azzahrah, Anak Agung Nabilla Badril Azhar Bekti Palupi Bimo Bayu Aji Boy Arief Fachri Buana, Nayyara Aida Diana Permata Nur Mifdatun Jannah Dianavita Fatimah Fathuri, Danu Fatimah, Dianavita Fatma, Lailatul Fauziah, Nabilah Lu'aili Felix Arie Setiawan Firmansyah, Muhammad Alfian Ghina Shofiah Adibah Khoirunnisa Hanggara Sudrajat Helda Wika Amini Helda Wika Amini Husna Wardati Intan Hardiatama Irawan, Dwi Agustin Istiqomah Rahmawati Istiqomah Rahmawati Lailatul Krisna Abdullah Lestari, Afrila Tutut Dwijati Lukman Nulhakim M. Wildan Ibnu Batuthoh Mahfud Mahfud Maktum Muharja Maktum Muharja Maktum Muharja Maulida Septiyana Meta Fitri Rizkiana Mizanurafi’ Ghifarhadi Prasiefa Muharja, Maktum Nadia Ayumna Fa’iqoh Naraismanti, Nirina Indi Nova Chintya Kurniawati Nugraha, Briantara Agung Nugraha, Reva Edra Nur Karima Permatasari, Ocita Galuh Pratama, Ilyas Arya Putri Agustin, Mawardhi Nabilla Putri, Salsabila Ananda Rahmat, Muhammad Rahmatullah, Moh. Fajar Ratri Sekaringgalih Relyando, Syahfa Adinda Rizki Fitria Darmayanti Rizki Fitria Darmayanti Rizki Fitria Darmayanti Rizky Pratama, Reinaldi Rojabi, Rofi Syifa'ur Rossi Agnessi Pebriana Safira Nur Oktavia Salma, Isni Salma Salsabillah Salsabila, Putri Ayu Salsabilah, Almas Saputra, Ilham Sari, Difka Augustina Diana Sholeha, Irdatus Siregar, Monika Jelita Siska Nuri Fadilah Siti Fatimah Soleh, Achmad Rodi Suryagama, Muhammad Nabil Susilowati Syaifullah, Rangga Yudha Tri Elok Setya Megasari Udroto, Firsta Retnaningtyas Viqhi Aswie Widjatma, Ridho Rahadina Zuhriah Mumtazah