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All Journal BERKALA SAINSTEK Bulletin of Chemical Reaction Engineering & Catalysis Sinergi ROTOR: JURNAL ILMIAH TEKNIK MESIN UNEJ e-Proceeding JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya 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 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
Boy Arief Fachri
Department Of Chemical Engineering, Faculty Of Engineering, University Of Jember, Jalan Kalimantan 37, 68121 Jember
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Journal : UNEJ e-Proceeding

 1 
EXTRACTION OF ROBUSTA COFFEE HUSK WASTE FROM TANAH WULAN VILLAGE MAESAN DISTRICT BONDOWOSO DISTRICT WITH ETHYL ACETATE AND ITS ANTIOXIDANT ACTIVITIES Helda Wika Amini; Wiwik Pratiwi; Gregah Pangayoman Hartanto P; Bekti Palupi; Boy Arief Fachri; Meta Fitri Rizkiana; Istiqomah Rahmawati
UNEJ e-Proceeding 2022: E-Prosiding Kolokium Hasil Penelitian dan Pengabdian kepada Masyarakat
Publisher : UPT Penerbitan Universitas Jember

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Abstract

Indonesia is the 4th largest coffee-producing country in the world. One of the coffee producers in the Bondowoso area of ​​East Java is Tanah Wulan Village. This village is located in the Argopuro Mountains Cluster, which produces coffee, especially Robusta coffee. In processing coffee cherries into coffee beans, the husk of the coffee cherries becomes the most significant waste from this process, reaching 40%-45%. However, the use of coffee husk waste is still limited as fertilizer and animal feed. So that there is a need for research to explore the potential of abundant coffee husk waste, one of which is about the antioxidant potential of robusta coffee husk produced in Tanah Wulan village. This study aimed to determine the percentage yield of robusta coffee husk extraction with ethyl acetate solvent and analyze its antioxidant activity. The robusta coffee husk extraction with ethyl acetate produces a dark green solid with a yield of 1.09%. From the analysis of antioxidants using DPPH, the IC50 was obtained at 96.5 mg/L with a strong category of antioxidants. However, the antioxidant activity of coffee husk extract is still much lower than the comparison compound for vitamin C, with an IC50 value of 3.68 mg/L (powerful category). So that, further research needs to be done to increase the antioxidant activity of coffee husk waste.
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

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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.
The EFFECT OF MICROORGANISM NUTRITION ON THE FERMENTATION PROCESS ON BIOETHANOL CONCENTRATION FROM TOBACCO STALKS Bekti Palupi; Boy Arief Fachri; Istiqomah Rahmawati; Meta Fitri Rizkiana; Helda Wika Amini; Nikita Meidi; Dini Rahmawaty
UNEJ e-Proceeding 2022: E-Prosiding Kolokium Hasil Penelitian dan Pengabdian kepada Masyarakat
Publisher : UPT Penerbitan Universitas Jember

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Abstract

Tobacco is one of the abundant biomass resources, especially in Jember Regency. Tobacco stalk has potential as a raw material for bioethanol and has more economic value than just being used as firewood. One of the new renewable energy that comes from biomass is biofuel. The currently developed biofuels are biodiesel and bioethanol. Compared to fuel oil, bioethanol's advantages include having a high octane number (106-110), increasing combustion efficiency, and reducing pollutant emissions. Besides being used to fulfill energy needs, bioethanol can also be used as a raw material in the pharmaceutical, cosmetic, and various alcohol derivatives industries. The Covid-19 pandemic has also made the need for ethanol increase. The scarcity of hand sanitizer products has made the price soar. The raw material for the hand sanitizer is ethanol, so the need for ethanol also increases. Bioethanol production, in general, has a 4-step process. The processes are pretreatment, hydrolysis, fermentation, and distillation. This study focused on the fermentation process with the aim of knowing the effect of microorganism nutrition on the concentration of bioethanol from tobacco stalks. Fermentation is done with the yeast Saccharomyces Cerevisiae. The addition of nutrients in the fermentation process greatly affects the concentration of ethanol that will be produced. The addition of optimal nutrients in this study was shown in the addition of 1.3% of the total initial volume of the sample or 0.325gram with a concentration result of 23.9%. Keywords: bioethanol, microorganism nutrition, fermentation, tobacco stalks
Co-Authors Abdul Malik Karim Amrullah Adrian, Febri Afred, Merymistika Yufrani Afwal, Diza Raudhatul Ahmad Syuhri Aini, Dwi Intan Noer Ainia, Hilda Huril Akbar Anugrah Ikhsani Akmal, Gavinda Tsubutul Al Fajri, Maktum Muharja Alex Ttesa Elsyamba Alfinaini, Nur Aini Dwi Alfinaini Alifia Rahma Putri Neysella Anggraini, Ranita Anggi Annisa, Yasmin Ansori Ansori Ardila Dwi Tresna Ari Susanti Arief Budiman Aris Zainul Muttaqin Asshofy , Muhammad Agil Atiqa Rahmawati Atiqa Rahmawati Azzahrah, Anak Agung Nabilla Badril Azhar Badril Azhar Bekti Palupi Bimo Bayu Aji Buana, Nayyara Aida Danang Muharyanto Dianavita Fatimah Digdo Listyadi, Digdo Dihayat, Icha Shofia Dini Rahmawaty Ditta Kharisma Yolanda Ditta Kharisma Yolanda Putri Doddy Parningotan Elisah, Nor Elsyamba, Alex Ttesa Erna Subroto Farwah, Zilma Aliyah Fatimah, Dianavita Felix Arie Setiawan Firmansyah, Muhammad Sahrul 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 I Made Arimbawa Indrayani, Lilin Intan Hardiatama 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 Meta Fitri Rizkiana Mizanurafi’ Ghifarhadi Prasiefa Mochamad Edoward Ramadhan Mohammad Nor Muhammad Reza Muhammad Reza Muharja, Maktum Mukhammad Fauzi Nabilah Lu’aili Fauziah Nadia Ayumna Fa’iqoh Naraismanti, Nirina Indi Nikita Meidi Nova Chintya Kurniawati Nova Chintya Kurniawati Nugraha, Briantara Agung Nugroho, Yeremia Prasetya Nur Karima Nur Karima Nurkoyim Kustanto Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah, Nurtsulutsiyah Permatasari, Ocita Galuh Pradipta, Shima Nuril Pratama, Ilyas Arya Pratamai Shelli Pravitasiwi, Nanda Tricya Julia Purimahua, Amanda Augre Maharani Puspita Sari Putri, Navisa Ayudia Putri, Salsabila Ananda R Rochmadi Rahman, Agus Ramadana, Ifan Ratnasonia, Samantha Githa Ratri Sekaringgalih Regita Gustiayu Pramisti Maharani Renald Rochman Mauludy Reswara Musyafa Rizalluddin, Muhammad Rizki Abdus Syatar Rizki Fitria Darmayanti Rizki Fitria Darmayanti Rizky Pratama, Reinaldi Rumaisha-Zuhriansyah, Rayya Safira Nur Oktavia Salsabila, Putri Ayu Santoso Mulyadi Sa’roni, Achmad Septianti, Kiki Shabrina, Nadhilah Sholeha, Irdatus Slamet Pujianto Suryagama, Muhammad Nabil 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 Wiwik Pratiwi Yakub Hendrikson Manurung Zuhriah Mumtazah