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All Journal International Journal of Renewable Energy Development BERKALA SAINSTEK Bulletin of Chemical Reaction Engineering & Catalysis UNEJ e-Proceeding JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya Warta Pengabdian Chemistry Indonesian Journal of Chemical Research CHEESA: Chemical Engineering Research Articles Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Jurnal Kartika Kimia Jurnal Teknologi Dedikasi: Jurnal Pengabdian kepada Masyarakat Jurnal Pijar MIPA Journal of Food Engineering Journal of Biobased Chemicals (JOBC) Sewagati Jurnal Teknik Kimia dan Lingkungan Warta LPM International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Penelitian Sains dan Teknologi Indonesia Jurnal Hasil Pengabdian Kepada Masyarakat Universitas Jember Indonesian Journal of Science and Education
Meta Fitri Rizkiana
Department Of Chemical Engineering, Faculty Of Engineering, Universitas Jember, Jalan Kalimantan 37, Jember 68121, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics 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 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