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All Journal EDUSAINS PENDIPA Journal of Science Education Jurnal Pendidikan Matematika Raflesia BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains JURNAL PENDIDIKAN TAMBUSAI Jurnal Kumparan Fisika Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Aksara: Jurnal Ilmu Pendidikan Nonformal Bioscientist : Jurnal Ilmiah Biologi DIKSAINS : Jurnal Ilmiah Pendidikan Sains Dikdimas : Jurnal Pengabdian Kepada Masyarakat JIPI (Jurnal IPA dan Pembelajaran IPA) Andromeda: Jurnal Pengabdian Masyarakat Rafflesia Sasambo: Jurnal Abdimas (Journal of Community Service) Jurnal Biosilampari: Jurnal Biologi
Rendy Wikrama Wardana
Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemistry Economics, Econometrics & Finance Education Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Mathematics Nursing Physics Social Sciences Other

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Journal : Bioscientist : Jurnal Ilmiah Biologi

 1 
Pengaruh Variasi Persentase Pakan Ampas Tahu dan Kotoran Sapi terhadap Pertumbuhan Cacing Tanah (Lumbricus rubellus) Elza Heryensi; Aceng Ruyani; Rendy Wikrama Wardana; Bhakti Karyadi; M. Sutarno
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11246

Abstract

This research was carried out from November to December 2023, at the Ruyani Life Sciences Learning Resources (SBIH). The aim of this research was to determine the effect of feeding tofu dregs and cow dung on the growth of earthworms (Lumbricus rubellus). The method used in this research was an experimental method, namely a Completely Randomized Design (CRD) with 6 feed treatments + 3 repetitions for continuation of undergraduate student research and 6 feed treatments + 3 repetitions for initiation. Data analysis used the Kruskall-Wallis nonparametric statistical test with Asymp. Sig. values. ≤ 0.05, and continued with the Mann-Whitney test. The research results show that the value of Asymp. Sig. parent biomass, offspring biomass, number of parent individuals, and number of Lumbricus rubellus offspring in sequence, in the 1st to 4th week of follow-up research Asymp. Sig. values. namely 0.086; 0.036; 0.140; and 0.064. In the 5th to 8th week of further research, the Asymp. Sig. value. namely 0.168; 0.047; 0.176; and 0.095. And in the 5th to 8th weeks of the research, the Asymp. Sig. value was initiated. namely 0.062; 0.010; 0.434; and 0.013. The conclusion was that feeding tofu dregs and cow dung had no real effect on parent biomass and number of parent individuals, and there was a real difference in offspring biomass and number of Lumbricus rubellus offspring in the initial study.
Pengaruh Penambahan Nutrient (NPK dan Pupuk Urea) terhadap Bioethanol Hasil Fermentasi Biji Alpukat (Persea americana Mill.) Zakyya Septiana Putri; Aceng Ruyani; Mellyta Uliyandari; Rendy Wikrama Wardana; A. A. Sukarso
Bioscientist : Jurnal Ilmiah Biologi Vol 12, No 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11283

Abstract

Bioethanol is an energy source obtained through fermentation. In bioethanol production, Persea americana seeds are used as a fermentation medium because they contain lots of carbohydrates. This research aims to determine the effect of additional nutrients (NPK and urea fertilizer) required by Saccharomyces cerevisiae by varying the nutritional variables in the form of NPK and urea fertilizer. The process of making bioethanol goes through stages: making Persea americana seed flour, hydrolysis process using 6% HCl, then fermentation process, and distillation process. This research was carried out with the addition of Nutrients in the form of NPK and Urea Fertilizer with 5 treatments, namely: A) 100% yeast (no addition of Nutrients); B) 100% NPK (4 g); C) 100% Urea Fertilizer (4 g); D) 50% NPK and 50% Urea Fertilizer (4 g NPK and 4 g Urea Fertilizer); and E) 75% NPK and 25% Urea Fertilizer (3 g NPK and 1 g Urea Fertilizer), and varying the length of fermentation time to 13, 19, and 25 days. Success parameters are assessed through the bioethanol yield produced by each treatment. The research results showed that the highest bioethanol (29.7 ± 0.47%) was composition E (NPK 75% and Urea Fertilizer 25%) with a fermentation time of 25 days.
Co-Authors -, Maison A. A. Sukarso ACENG RUYANI Aceng Ruyani Aceng Ruyani Afizal Mayub Afrizal Mayub Agus Setyowati Alvera Rosa Anggun Prihatini Ariefa Primair Yani Athika Ulfah Putri Bayu Pradikto Bhakti Karyadi Bhakti Karyadi Deni Parlindungan Dewi Liesnoor Setyowati Dina Apriyanti Elza Heryensi Endang Widi Winarni Euis Nursa’adah Fitri April Yanti Fitri Mulyani* Henny Johan Herlina Apriska Ida Cuci Safitri Indra Sakti Iwan Setiawan Lasriani Lasriani M Lutfi Firdaus M. Lutfi Firdaus M. Sutarno M. Syaipul Hayat Mellyta Uliyandari Mellyta Uliyandari Uliyandari Muhammad Lutfi Firdaus Nensi Pitaloka Niko Utomo Nirwana Nirwana Noni Noviana Nursaadah, Euis Putri Ramadan Lazuardi Rahma Febriana Pratiwi Sausan Fatin Nurazizah Sofino, Sofino Sutarno Sutarno Ur Aniliawati Winarko Winarko Yestilia Anggraini Zakyya Septiana Putri