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All Journal Jurnal Ilmu Lingkungan Jurnal Ilmu Dasar BERKALA SAINSTEK Bulletin of Chemical Reaction Engineering & Catalysis UNEJ e-Proceeding JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Warta Pengabdian Chemistry Indonesian Journal of Chemical Research CHEESA: Chemical Engineering Research Articles Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Jurnal Kartika Kimia Jurnal Teknologi Jurnal Abdimas PHB : Jurnal Pengabdian Masyarakat Progresif Humanis Brainstorming Dedikasi: Jurnal Pengabdian kepada Masyarakat Jurnal Pijar MIPA Sewagati Jurnal Teknik Kimia dan Lingkungan InSTEM Bulletin of Chemical Reaction Engineering & Catalysis al Kimiya : Jurnal Ilmu Kimia dan Terapan Indonesian Journal of Science and Education
Istiqomah Rahmawati
Research Center For Biobased Chemical Product, Program Studi Teknik Kimia, Universitas Jember
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions 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 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 Achmad Sjaifullah Adrian, Febri Afred, Merymistika Yufrani Afwal, Diza Raudhatul Ahmad Reza Maulufi Aini, Dwi Intan Noer Ainia, Hilda Huril Akmal, Gavinda Tsubutul Al Fajri, Maktum Muharja Alfarizi, Muhammad Alfian Anggraini, Ranita Anggi Annisa, Yasmin Ansori Ansori Ari Susanti Ariel Seanhan Haezer Arkan, Naufal Asshofy , Muhammad Agil Atiqa Rahmawati Atiqa Rahmawati Atiqa Rahmawati Azzahrah, Anak Agung Nabilla Badril Azhar Badril Azhar Bambang Piluharto Bekti Palupi Bima Suci, Syeikh Maulana Bimo Bayu Aji Boy Arief Fachri Boy Fachri Brilianto, Mochamad Syadam Buana, Nayyara Aida Busroni, Busroni Dihayat, Icha Shofia Dini Rahmawaty Ditta Kharisma Yolanda Ditta Kharisma Yolanda Putri Elisah, Nor Eriska Eklezia Dwi Saputri Fachri, Boy Fakhri Arkaan Humaidi Farwah, Zilma Aliyah Fatimah, Dianavita Felix Arie Setiawan Firmansyah, Arfian Alwi Firmansyah, Muhammad Sahrul Firsta Retnaningtyas Udroto Fitriati, Diana Gailani, Jauhairiyah Gregah Pangayoman Hartanto P Gregah Pangayoman Hartono Putro Habibatul Inayah Harti Arini Hakiki, Rizki Maulana Helda Wika Amini Helda Wika Amini Heni Pujiastuti Herdianto, Dimas Nur Hidayat, Debby Aurellia Humaidi, Fakhri Arkaan Indrayani, Lilin Kamiliah, Thiflatul Lailatul Krisna Abdullah Lestari, Afrila Tutut Dwijati Lumbantoruan, Sri Lestari Maharani, Regita Gustiayu Pramisti Mahfud Mahfud Mahfud Mahfud Maktum Muharja Maryanto Maryanto Meta Fitri Rizkiana Mizanurafi’ Ghifarhadi Prasiefa Mohammad Nor Muhammad Ilham Muhammad Reza Muhammad Reza Muhammad Taufiqurrohman, Muhammad Muharja, Maktum Nanda Ayudiyah Andriani Naraismanti, Nirina Indi Nikita Meidi Nova Chintya Kurniawati Nova Chintya Kurniawati Nugroho, Yeremia Prasetya Nur Karima Nur Karima Nurkholisah, Siti Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah, Nurtsulutsiyah Permatasari, Ocita Galuh Pradipta, Shima Nuril Pratama, Ilyas Arya Pravitasiwi, Nanda Tricya Julia Purimahua, Amanda Augre Maharani Rafif, M. Attar Rahma Rei Sakura Rahman, Agus Ramadana, Ifan Ratri Sekaringgalih Regita Gustiayu Pramisti Maharani Reswara Musyafa Ridho, Moh Zeinur Rizalluddin, Muhammad Rizki Fitria Darmayanti Robaniyah, Septiana Kholifatur Salsabila, Putri Ayu Saputra, Dicky Aditya Sa’roni, Achmad Septiana, Windi Yudita Septianti, Kiki Shabrina, Nadhilah Shofiah , Laila Nur Sholeha, Irdatus Suryagama, Muhammad Nabil Susanti, Tria Susilowati Susilowati Syawaludin, Syafriel Razaan Tarigan, Eigiya Nina Udroto, Firsta Retnaningtyas Uzinuzulla, Yunita Virda Wardani, Salza Belila Kusuma Wardhani, Maharani Tri Wiwik Pratiwi Yakub Hendrikson Manurung Yohanes Yohanes Yolanda Putri, Ditta Kharisma Zuhriah Mumtazah Zuhro, Syarifa Aminatuz