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All Journal BERKALA SAINSTEK Sinergi ROTOR: JURNAL ILMIAH TEKNIK MESIN UNEJ e-Proceeding JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya ALCHEMY Jurnal Penelitian Kimia JMM (Jurnal Masyarakat Mandiri) SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Warta Pengabdian STATOR: Jurnal Ilmiah Mahasiswa Teknik Mesin Chemistry Indonesian Journal of Chemical Research CHEESA: Chemical Engineering Research Articles Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Jurnal Kartika Kimia Jurnal Teknologi Jurnal Elemen J-Proteksion: Jurnal Kajian Ilmiah dan Teknologi Teknik Mesin Jurnal Teknik Kimia Indonesia International Journal on Food, Agriculture and Natural Resources (IJFANRES) Dedikasi: Jurnal Pengabdian kepada Masyarakat Jurnal Pijar MIPA Makara Journal of Science Logic : Jurnal Rancang Bangun Dan Teknologi Journal of Biobased Chemicals (JOBC) Jurnal Teknik Kimia dan Lingkungan Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Penelitian Sains dan Teknologi Indonesia Dinamika Kerajinan dan Batik: Majalah Ilmiah
Boy Arief Fachri
Department Of Chemical Engineering, Faculty Of Engineering, University Of Jember, Jalan Kalimantan 37, 68121 Jember
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Microwave Assisted Hydrolysis Ulva sp. Using HCl for the Production of Bioethanol Raw Materials Bekti Palupi; Nadia Ayumna Fa’iqoh; Alifia Rahma Putri Neysella; Boy Arief Fachri; Ditta Kharisma Yolanda Putri; Lukman Nulhakim; Maulida Septiyana
Journal of Biobased Chemicals Vol. 2 No. 2 (2022): Journal of Biobased Chemicals
Publisher : Program Studi Teknik Kimia Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jobc.v2i2.272

Abstract

The challenges faced by the Indonesian state are increasing greenhouse gases, climate change, and depleting fossil fuel reserves. This requires the exploration of alternative energy that is environmentally friendly and sustainable. Algae biomass, especially Ulva sp. is one of the resources that have the potential for bioethanol production as an alternative energy producer. The purpose of this study is to determine the potential of Ulva sp. as raw material for bioethanol and to determine the effect of particle size, solvent concentration, and power on the hydrolysis process. This study used Ulva sp. as raw material. hydrolyzed with HCl solvent using the microwave assisted hydrolysis method. Hydrolysis with HCl concentrations of 0.1 N, 1 N, 2 N, variations of microwave power 150 watts, 300 watts, 450 watts, and particle sizes of 60 mesh, 80 mesh, and 100 mesh. Measurement of reducing sugar levels was carried out using the dinitro salicylic acid (DNS) method. The results showed that the best conditions for hydrolysis were when the HCl concentration was 0.1 N, the microwave power was 450 watts, and the particle size was 80 mesh which resulted in a reducing sugar content of 20.751 mg/mL.
Extraction of Phenolic Active Compounds from Coffee Leaves (Coffea sp.) Using the Ultrasound Assisted Extraction Method and Total Phenol Analysis Alfinaini, Nur Aini Dwi Alfinaini; Boy Arief Fachri; Pratamai Shelli; Helda Wika Amini; Istiqomah Rahmawati
Journal of Biobased Chemicals Vol. 3 No. 1 (2023): Journal of Biobased Chemicals
Publisher : Program Studi Teknik Kimia Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jobc.v3i1.278

Abstract

Coffea sp. is one of the largest plantation commodities in Indonesia, especially coffee leaves containing phenolic compounds. This research was conducted to extract phenolic compounds using the Ultrasound-Assisted Extraction method with ethanol solvent which aims to determine the optimum operating conditions of extraction as well as the influence of variations in amplitude, time, and ratio of solvents produced. The experimental design was carried out using Design Expert 13 software with the response surface method box-Behnken design. The research variables used were amplitude variations (50%, 60%, and 70%), time (10, 20, and 30 minutes), and solvent ratios (0.1; 0.15; and 0.2 g/mL).Based on our study, these parameters affect the total phenolic content. The model equation for the total phenolic content of coffee leaves obtained is Y = 0.1349 – 0.0016 A – 0.0505 B + 0.0010 C + 0.0018 AB + 0.0043 AC – 0.0018 BC – 0.0004 A2 + 0.0178 B2 – 0.0014 C2 (R2 = 0.9758) with the optimum total phenolic content located in the 17th running of 0.209 mg GAE/g under conditions of 20 minutes, the ratio of material to solvent is 0.2 g/mL, and an amplitude of 50%.
Effect of Time Variation on Chlorophyll Concentration in Cocoa Leaf Extraction using the UAE (Ultrasonic Assisted Extraction) Method Rahmawati, Istiqomah; Shabrina, Nadhilah; Fachri, Boy Arief; Amini, Helda Wika; Palupi, Bekti; Rizkiana, Meta Fitri; Nurtsulutsiyah, Nurtsulutsiyah; Pradipta, Shima Nuril; Afwal, Diza Raudhatul; Reza, Muhammad
Jurnal Kartika Kimia Vol 5 No 1 (2022): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v5i1.97

Abstract

Until now, Cocoa (Theobroma cacao L.) plantation is a sector that has been continuously cultivated. Cocoa leaves contain chlorophyll, which is an important pigment in photosynthesis as sunlight absorber. The aim of this study is to determine the effect of extraction time to the concentration of chlorophyll in cocoa leaves. The extraction time was varied from 5 to 25 min with constant variables, namely power and ratio of raw materials. In this study, Ultrasonic Assisted Extraction (UAE) method was used due to its effectiveness. The concentration of obtained chlorophyll was determined by using UV-Vis spectrophotometry. The optimum extraction time was 15 min producing concentration of chlorophyll a of 9.39 mg/L, chlorophyll b of 4.78 mg/L, and total chlorophyll of 14.16 mg/L.
Optimization of Microwave Ultrasound Extraction of Biopolymer from using Response Surface Methodology Rahmawati, Istiqomah; Annisa, Yasmin; Farwah, Zilma Aliyah; Adrian, Febri; Anggraini, Ranita Anggi; Fachri, Boy Arief; Reza, Muhammad; Rizkiana, Meta Fitri; Palupi, Bekti; Amini, Helda Wika
Jurnal Kartika Kimia Vol 6 No 2 (2023): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v6i2.174

Abstract

This study aims to determine the effect of combining the two extraction methods Microwave Assisted Extraction (MAE) and Ultrasound-Assisted Extraction (UAE) on the yield and content of ulvan polysaccharides from Ulva lactuca with the best operation condition. Algae biomass U. lactuca is abundant, according to its content, U. lactuca contains polysaccharides which can be used as biodegradable plastic materials. The extraction was carried out using Microwave Ultrasound Extraction by varying the microwave power from 100 to 800 watts, the microwave time variations from 10 to 50 minutes, the ultrasonic wave temperature range from 40-80 oC, and the ultrasonic wave time variations from 20 to 50 minutes. Optimization was performed using the response surface methodology center composite design methodology for a total of 28 runs. Several tests were carried out to determine the character of the ulvan polysaccharide, including water content, FT-IR spectroscopy, High-Performance Liquid Chromatography, and its antioxidant activity. The effect of combining Microwave Assisted Extraction (MAE) and Ultrasound-Assisted Extraction (UAE) provides an optimal extraction condition with higher yields and good quality ulvan.
Preparation and Characterization of Cellulose Acetate from Pandanus tectorius via Microwave Irradiation Rizkiana, Meta Fitri; Amrullah, Abdul Malik Karim; Elisah, Nor; Amini, Helda Wika; Palupi, Bekti; Rahmawati, Istiqomah; Fachri, Boy Arief
Indonesian Journal of Chemical Research Vol 12 No 1 (2024): Edition for May 2024
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2024.12-riz

Abstract

This research focuses on extracting cellulose from thorn pandan and evaluating its potential as a raw material for cellulose acetate. Thorn pandan contains polysaccharides, especially cellulose. In its fabrication process, cellulose acetate is produced from cellulose acetylation reaction. Cellulose is extracted using the Microwave-assisted Extraction method with variations in NaOH concentration (1, 2, and 3%), H2O2 concentration (10, 20, and 30%), and time variables (20, 40, and 60 minutes). Extraction optimization was performed with Response Surface Methodology (RSM) model BBD (Box-Behken Design). Several characterizations were carried out to determine the characteristics of cellulose acetate, namely Degree of Acetylation, FT-IR spectroscopy and X-Ray Diffraction (XRD). The highest cellulose yield obtained in the extraction process was 50.7% with a variable of 3% NaOH, 30% H2O2 and 60 minutes. XRD analysis shows the angle value 2θ = 22.53798° of thorn pandan cellulose structure is almost similar to commercial cellulose. FTIR functional group identification of cellulose acetate showed the presence of carbonyl (C=O) and (C-O Acetyl) group, respectively seen at wave numbers 1734 cm-1 and 1256 cm-1. The acetyl content of cellulose acetate from thorn pandan produced is 35.475%. Therefore, thorn pandan biomass has the potential as a raw material for making cellulose acetate.
Polyphenol Extraction from Musa corniculata Peel Using Microwave Assisted Extraction (MAE) Method with Ethanol Solvent Rahmawati, Istiqomah; Sa’roni, Achmad; Wardhani, Maharani Tri; Fachri, Boy Arief; Palupi, Bekti; Rizkiana, Meta Fitri; Amini, Helda Wika; Reza, Muhammad
BERKALA SAINSTEK Vol 12 No 2 (2024)
Publisher : Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bst.v12i2.41494

Abstract

Banana peel (Musa corniculata) is one of the superior plants in Indonesia which is rich in polyphenolic compounds as a source of antioxidants. The potential of polyphenolic compounds as antioxidants can be used as an alternative to reduce banana peel waste. This study aims to determine the total content of polyphenols and antioxidant activity of horn banana peel extract. Extraction used the Microwave Assisted Extraction (MAE) method with ethanol solvent and the variables were extraction time (4, 7, and 10 minutes), solvent concentration (50, 73 and 96 %), ratio of simplicia mass to solvent volume (1:12, 1 :8, 1:6 g/mL) with a microwave power of 150 Watt. Determination of polyphenol content using the Folin-Ciocalteau method and the ability of polyphenols as antioxidants were analyzed by DPPH test. This study used the Design Expert 13 Response Surface Methodology software, the Box Behnken type, to determine the extraction parameters for the total polyphenol content. The highest total polyphenol content was obtained at 354.02 mg GAE/g from the combination of parameters 50% solvent concentration, 10 minutes extraction time, and the ratio of horn banana peel powder to 1:8 g/mL solvent.
OPTIMASI EKSTRAKSI SENYAWA FENOLIK DAUN SIRIH MERAH (Piper Crocatum Ruitz & Pav) MENGGUNAKAN METODE MICROWAVE ASSISTED EXTRACTION (MAE) Amini, Helda Wika; Nugroho, Yeremia Prasetya; Rahman, Agus; Rizkiana, Meta Fitri; Rahmawati, Istiqomah; Palupi, Bekti; Fachri, Boy Arief
Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Vol 7, No 3 (2024)
Publisher : Universitas Islam Kalimantan MAB Banjarmasin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/dl.v7i3.16431

Abstract

Karena efek samping yang lebih sedikit daripada pengobatan sintetik, pengobatan menggunakan bahan alami menjadi pilihan populer di Indonesia. Oleh karena itu, diperlukan penelitian lebih lanjut mengenai bahan alami yang dapat digunakan sebagai obat, salah satunya adalah sirih merah. Penelitian ini bertujuan mengetahui kondisi optimal untuk mengekstraksi senyawa fenolik daun sirih merah dengan menggunakan metode Microwave Assisted Extraction (MAE). Penelitian ini menggunakan daun sirih merah ukuran 60 mesh yang telah dikeringkan. Dengan pelarut etanol 96%, daun sirih merah diekstraksi dengan variabel daya microwave 150 watt, 300 watt, dan 450 watt. Rasio bahan terhadap pelarut adalah 0,05 gram/mL, 0,1 gram/mL, dan 0,15 gram/mL. Ekstraksi berlangsung selama 5-15 menit. Analisis hasil penelitian dilakukan dengan analisis total fenol menggunakan metode Folin-Ciocalteu. Pada run ke-8, total fenol tertinggi adalah 0,0736 mg GAE/g, dengan rasio pelarut 0,05 g/mL, waktu ekstraksi 5 menit, dan daya microwave 300 watt.
Studi Awal Pembuatan Membran Chitosan-Silica Based dari Berbagai Limbah Setiawan, Felix Arie; Arimbawa, I Made; Putri, Navisa Ayudia; Fachri, Boy Arief
CHEESA: Chemical Engineering Research Articles Vol. 3 No. 1 (2020)
Publisher : Universitas PGRI Madiun

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (452.595 KB) | DOI: 10.25273/cheesa.v3i1.5701

Abstract

Jember memiliki potensi perikanan terutama udang sebagai sumber kitin yang merupakan dasar pembuatan kitosan. Kitosan berasal dari limbah kulit udang yang dicampur dengan limbah lain yaitu padatan silika dari Pembangkit Listrik Panas Bumi dan fly ash dari Pembangkit Listrik Tenaga Uap untuk menghasilkan membran yang dapat digunakan dalam filtrasi logam berat dalam air. Membran tanpa silika dibuat sebagai negative control dan dengan silika murni sebagai positive control. Membran kitosan dibuat dengan cara mencampurkan 1,0 gram kitosan dalam 100 mL larutan asam asetat 2% v/v dan 0,8 gram senyawa silika serta 0,5 gram polyethylene glycol. Membran yang telah dibuat diuji untuk menyaring larutan yang mengandung logam berat Cu dan Pb. Konsentratsi optimum dari Cu dan Pb dalam badan cairan dapat dikurangi sebesar 87% dan 80% menggunakan membran kitosan-silika.
Kinetika Ekstraksi Biji Kopi Arabika (Coffea Arabika) Lailatul Fatma; Nabilah Lu’aili Fauziah; Zuhriah Mumtazah; Helda Wika Amini; Boy Arief Fachri
Journal of Biobased Chemicals Vol. 4 No. 2 (2024): Journal of Biobased Chemicals
Publisher : Program Studi Teknik Kimia Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jobc.v4i2.1325

Abstract

Biji kopi merupakan bibit tanaman kopi dan sumber minuman kopi. Biji kopi arabika mengandung minyak yang memiliki banyak manfaat. Proses ekstraksi minyak (zat terlarut) pada kopi dapat dilakukan melalui ekstraksi pelarut (leaching). Proses ekstraksi minyak biji kopi menggunakan n-heksana sebagai pelarut karena dapat melarutkan senyawa-senyawa yang mempunyai sifat yang sama. Tujuan dari penelitian ini adalah untuk mempelajari ekstraksi minyak atsiri dari biji kopi arabika dan mengetahui model kinetika ekstraksi minyak atsiri dari biji kopi arabika dengan cara leaching. Proses pemisahan minyak kopi dan pelarut menggunakan analisis termogravimetri dengan suhu 80℃ hingga massa sampel konstan. Variabel yang digunakan adalah suhu dan waktu. Waktu ekstraksi adalah 2 jam dengan waktu pengambilan setiap 10 menit. Suhu yang digunakan adalah 30°, 40°, dan 50℃ dengan perbandingan bahan dan pelarut 1:10. Hasil penelitian menunjukkan bahwa kinetika ekstraksi kopi arabika mengikuti model kinetika ekstraksi orde dua. Nilai parameter kinetika orde kedua ekstraksi minyak atsiri kopi arabika yaitu kapasitas ekstraksi (Cs) pada suhu 30°, 40°, dan 50℃ masing-masing sebesar 5,45836, 5,46, dan 5,46001 g L-1, laju reaksi awal. ekstraksi (h) sebesar 0,00762718, 0,00756716, dan 0,0104452 gL-1menit-1, konstanta laju ekstraksi (k) sebesar 0,000256, 0,000254, dan 0,00035 g-1L-1menit-1 , dan nilai determinasi sebesar 0,9965, 0,9967 dan 0,9983.
Kinetic Extraction of Moringa Oleifera Leaves using the Microwave Assisted Extraction (MAE) Method Rizky Pratama, Reinaldi; Ghina Shofiah Adibah Khoirunnisa; Ditta Kharisma Yolanda Putri; Helda Wika Amini; Boy Arief Fachri
Journal of Biobased Chemicals Vol. 4 No. 2 (2024): Journal of Biobased Chemicals
Publisher : Program Studi Teknik Kimia Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jobc.v4i2.1379

Abstract

Daun kelor (Moringa oleifera) adalah bagian dari tumbuhan yang memiliki bentuk seperti daun dengan berbagai manfaat kesehatan dan gizi yang tinggi, serta terdapat kandungan vitamin, mineral, protein, dan senyawa bioaktif, serta memiliki sifat antioksidan dan antiinflamasi. Penelitian ini bertujuan untuk mempelajari ekstrasi, mengetahui keberadaan kandungan tannin pada daun kelor dan mengetahui model kinetika ekstraksi pada ekstrak yield daun kelor meggunakan metode Microwave Assisted Extraction (MAE). Proses ekstraksi daun kelor dilakukan dengan menggunakan pelarut etanol 96% dan menggunakan metode Microwave Assisted Extraction (MAE) dapat membantu memaksimalkan rendemen ekstraksi. Proses ekstraksi dilakukan dengan variasi daya 150 watt, rasio bahan terhadap pelarut 1:15 b/v dan waktu ekstraksi 2, 4, 6, 8, dan 10 menit. Hasil penelitian menunjukkan nilai rendemen tertinggi didapatkan pada waktu ekstraksi di menit ke 10 yaitu 10,25%. Model kinetika ekstraksi yang sesuai untuk mengekstraksi senyawa tanin dari daun kelor adalah orde 2, dimana nilai R2 lebih tinggi dibandingkan orde 1 dan nilainya hampir mendekati 1.
Co-Authors Abdul Malik Karim Amrullah Abi, Moch Irgi Fadhilal Adelina, Saltsabita Nourin Adrian, Febri Afwal, Diza Raudhatul Ahmad Syuhri Akbar Anugrah Ikhsani Al Fajri, Maktum Muharja Alex Ttesa Elsyamba Alfinaini, Nur Aini Dwi Alfinaini Alifia Rahma Putri Neysella Amalia Ramadhan Anak Agung Nabilla Azzahrah Anggraeni, Sella Violina Anggraini, Ranita Anggi Annisa, Yasmin Ansori Ansori Ardila Dwi Tresna Ari Susanti Arief Budiman Aris Zainul Muttaqin Asshofy , Muhammad Agil Atiqa Rahmawati Atiqa Rahmawati Azizi, Daffa Hafiziaulhaq Badril Azhar Badril Azhar Bekti Palupi Bimo Bayu Aji Budiarti, Lutfia Pradisha Danang Muharyanto Dianavita Fatimah Digdo Listyadi, Digdo Dihayat, Icha Shofia Dini Rahmawaty Ditta Kharisma Yolanda Ditta Kharisma Yolanda Putri Doddy Parningotan Dwi Intan Noer Aini Elida Novita Elisah, Nor Elsyamba, Alex Ttesa Erna Subroto Farwah, Zilma Aliyah Fatimah, Dianavita Felix Arie Setiawan Firmansyah, Muhammad Sahrul Gavinda Tsubutul Akmal Ghina Shofiah Adibah Khoirunnisa Gregah Pangayoman Hartanto P Habibatul Inayah Harti Arini Helda Wika Amini Helda Wika Amini Heni Pujiastuti Herdianto, Dimas Nur Hidayat, Debby Aurellia Hilda Huril Ainia Husnul Khotimah I Made Arimbawa Ilyas Arya Pratama Indrayani, Lilin Intan Hardiatama Ismail, Abdul Fatah Istiqomah Rahmawati Istiqomah Rahmawati Kristianta, Franciscus Xaverius Lailatul Fatma Lestari, Afrila Tutut Dwijati Lukman Nulhakim Lumbantoruan, Sri Lestari M Edoward Ramadhan M Nurkoyim Kustanto M Yuda Pratama Maharani, Regita Gustiayu Pramisti Mahfud Mahfud Mahfud Mahfud Mahros Darsin Maktum Muharja Maulida Septiyana Megasari, Tri Elok Setya Merymistika Yufrani Afred Meta Fitri Rizkiana Mizanurafi’ Ghifarhadi Prasiefa Mochamad Edoward Ramadhan Mochamad Ghaza Al Ghifari Mohammad Nor Muhammad Nabil Suryagama Muhammad Reza Muhammad Reza Muhammad Rizky Kurniawan Muharja, Maktum Mukhammad Fauzi Nabilah Lu’aili Fauziah Nadia Ayumna Fa’iqoh Naily Fatimatuz Zaroh Nayyara Aida Buana Nida Ayu Salsabila Nikita Meidi Nirina Indi Naraismanti Nova Chintya Kurniawati Nova Chintya Kurniawati Nugraha, Briantara Agung Nugroho, Yeremia Prasetya Nur Karima Nur Karima Nurkoyim Kustanto Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah, Nurtsulutsiyah Ocita Galuh Permatasari Permana, Rafly Surya Pradipta, Shima Nuril Pratamai Shelli Pravitasiwi, Nanda Tricya Julia Purimahua, Amanda Augre Maharani Puspita Sari Putri Ayu Salsabila Putri, Navisa Ayudia Putri, Salsabila Ananda R Rochmadi Rahman, Agus Ramadana, Ifan Ratnasonia, Samantha Githa Ratri Sekaringgalih Regita Gustiayu Pramisti Maharani Rekfa Wika Amini Renald Rochman Mauludy Reswara Musyafa Richa Febyola Surya Putri Rizalluddin, Muhammad Rizki Abdus Syatar Rizki Fitria Darmayanti Rizki Fitria Darmayanti Rizky Pratama, Reinaldi Rumaisha-Zuhriansyah, Rayya Safira Nur Oktavia Santoso Mulyadi Sa’roni, Achmad Septianti, Kiki Shabrina, Nadhilah Sholeha, Irdatus Slamet Pujianto Sutarsi, Suratsi Syatar, Rizki Abdus Tri Elok Setya Megasari Udroto, Firsta Retnaningtyas Uzinuzulla, Yunita Virda Wardani, Salza Belila Kusuma Wardhani, Maharani Tri Watiningsih, Lusi Karlina Wibowo, Jihan Nafila Wiwik Pratiwi Yakub Hendrikson Manurung Yukti Nurani Zikrillah, M Zuhriah Mumtazah