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All Journal International Journal of Advances in Applied Sciences Jurnal IPTEK KOVALEN: Jurnal Riset Kimia Chemistry in Education Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan JKTP: Jurnal Kajian Teknologi Pendidikan Jurnal Administrasi dan Manajemen Pendidikan Chemistry Indonesian Journal of Chemical Research Jurnal Fisika : Fisika Sains dan Aplikasinya Fullerene Journal of Chemistry Stannum : Jurnal Sains dan Terapan Kimia JAMP : Jurnal Administrasi dan Manajemen Pendidikan Indonesian Journal for Social Responsibility Journal of Engineering Science and Technology Prosiding Seminar Nasional Pengabdian kepada Masyarakat (SINAPMAS) International Journal of Islamic Khazanah Analit: Analytical And Environmental Chemistry JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya
Muhammad Roy Asrori
Universitas Negeri Malang
Religion Agriculture, Biological Sciences & Forestry Humanities Astronomy Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Physics Social Sciences Other

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Pengaruh Jenis Bahan Baku Minyak di Indonesia terhadap Karakter Biodiesel Muhammad Roy Asrori; Aman Santoso; Yana Fajar Prakasa; Deni Ainur Rokhim
JC-T (Journal Cis-Trans) : Jurnal Kimia dan Terapannya Vol. 9 No. 2 (2025)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um0260v9i22025p026

Abstract

Kebutuhan energi terbarukan terus meningkat dan penelitian terus dilakukan dalam hal pencarian efisiensi, efektivitas, dan adaptabilitas. Di Indonesia, energi terbarukan yang dipersiapkan dalam jumlah besar adalah biodiesel. Sebagai salah satu negara agraris, sumber daya alam berupa minyak nabati perlu dieksplorasi untuk menampilkan potensi bahan baku biodiesel. Berbagai jenis bahan baku tersebut dapat menghasilkan jenis biodiesel dengan kualitas yang berbeda. Pemahaman terhadap kualitas ini mengarah pada suatu karakter biodiesel, yakni densitas, viskositas, bilangan asam, dan yield. Dalam kajian ini, penulis merepresentasikan pengaruh jenis bahan baku minyak terhadap karakter biodiesel dengan menelusuri literatur jurnal. Biodiesel yang dihasilkan dari proses transesterifikasi. Hasil kajian menunjukkan bahwa pengaruh jenis bahan baku terhadap karakteristik biodiesel yang dihasilkan adalah berbeda-beda tetapi sesuai SNI SNI 04-7182-2006. Sedangkan pengaruh jenis bahan baku terhadap yield biodiesel yang dihasilkan adalah diperoleh bahan baku minyak kelapa yang memiliki yield biodiesel tertinggi (98,5%) dari reaksi optimum transesterifikasi beberapa bahan baku biomassa. Jadi, bahan baku memainkan peranan penting produksi biodiesel.
ELIMINATING SeO2 IN THE KJELDAHL METHOD FOR PROTEIN CONTENT DETERMINATION OF BSA Muhammad Roy Asrori; Mailinda Ayu Hana Margareta; Deni Ainur Rokhim; Surjani Wonorahardjo
Analit : Analytical and Environmental Chemistry Vol. 12, No. 02 October (2026) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/analit.v12i02.263

Abstract

Protein content using the Kjeldahl method was the most analytical method. For supporting the sustainable environment, the method can be modified efficiently. This study evaluated the validation of the modified Kjeldahl method that eliminates SeO2. The validation was included i.e.: precision, accuracy, linearity, Limit of Detection (LoD), and Limit of Quantification (LoQ). The uncertainty value was estimated. The further analysis was cost analysis and analytical GREEnness metric evaluation. The results showed that the modified Kjeldahl method was acceptable. The validation values are precision (0.039785), accuracy (98.84%), linearity (R2 = 0.9940), LoD (0.547%), and LoQ (1.658%). The estimated uncertainty of this method was ± 0.2892% w/w. The modified method was more economical and greener than the conventional Kjeldahl method.
Co-Authors Agustina, Nur Indah Ahmad Faikul Anam Ahmad Nashih Anis Zubaidy Aman Santoso Aman Santoso Anam, Ahmad Faikul Andyka Medarda Pradana Anugrah Ricky Wijaya Armaini, Armaini Bambang Wahyudi Deni Ainur Rokhim Dinar Rachmadika Baharintasari Dinar Rachmadika Baharintasari Eli Hendrik Sanjaya Evy Damayanthi Firda Amalia Fitriyah, Zakiyatul Habiddin Hayuni Retno Widarti Irsyadatun Ni’mah Januarti, Wenny Lilik Eka Radiati Mahmudah, Siti Nur Mailinda Ayu Hana Margareta Mujahidah, Amiroh Nabilah Muntholib Ni’mah, Irsyadatun Nur Chairini Peni, Ristiwi Prakasa, Yana Fajar Putra, Arif Putra, Moch Chesa Nur Hidayat Arif Retnosari, Rini Rizky, M Sinta Nur Laila Sumari Sumari Surjani Wonorahardjo Wahyudi, Asnan Wele, Amonius Regino Yana Fajar Prakasa Yana Fajar Prakasa Yana Fajar Prakasa Yudhi Utomo Zakiyatul Fitriyah Zubaidah R, Zubaidah Zubaidah Zubaidah Zubaidy, Ahmad Nashih Anis