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Kemampuan Filter Alami Berbasis Kulit Pisang (Musa paradisiaca L.) dalam Penjernihan Air Sihite, Nadia Okta Kristiana; Sutarno, Sutarno; Parlindungan, Deni; Johan, Henny; Karyadi, Bhakti
Bioscientist : Jurnal Ilmiah Biologi Vol 11, No 2 (2023): December
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.v11i2.9161

Abstract

Waste from male banana peels (Musa paradisiaca Var. Paradisiaca), Ambon banana peels (Musa paradisiaca Var. Sapientum), and kepok banana peels (Musa acuminate L.) can be used as natural water filtration. The content of pectin, galacturonic acid and cellulose in banana peels can absorb heavy metals in water. This research aims to determine the filtration ability of natural waste materials such as kepok banana peels, Ambon banana peels and male banana peels which are most effectively used as water filtration media. This research consists of the sample preparation stage, carbonization stage, activation stage, and trial stage. The method used is an experimental method on a laboratory scale to measure Potential Hydrogen (pH), Total Dissolve Solid (TDS), and the level of clarity in water. The data obtained was tested using the Anova test with a significance level of 5% and the BNT test. Based on the BNT test which shows that male banana peels are not significantly proportional to the TDS of well water. Meanwhile, Ambon banana peel and Kepok banana peel are significantly proportional to TDS, and for Kepok banana peel, Ambon banana peel and male banana peel, it is significantly proportional to the pH of well water, because the significance results are less than 0.05%. From these findings it can be concluded that Kepok banana peels and Ambon banana peels are the most effective water filtration media to use.
PENGEMBANGAN LKPD BERBASIS POE2WE (PREDICTION, OBSERVATION, EXPLANATION, ELABORATION, WRITE, EVALUATION) PADA MATERI BIOTEKNOLOGI Yulianingsih, Elysabet; Nirwana; Ariefa Primair Yani; Bhakti Karyadi; Aprina Defianti
DIKSAINS : Jurnal Ilmiah Pendidikan Sains Vol. 5 No. 1: Desember 2024
Publisher : Universitas Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/diksains.5.1.1-11

Abstract

ABSTRAKPenelitian ini memiliki tujuan untuk mengembangkan LKPD berbasis POE2WE pada materi Bioteknologi bagipeserta didik tingkat SMP. Jenis penelitian ini adalah Reseach and Developmnet dengan model 4D (Define, Design,Develop, Disseminate) dan hanya dibatasi pada 3D atau hanya pada tahap Develop saja. Teknik pengumpulan datapenilitian ini yaitu observasi, wawancara dan angket. Teknik analisis data LKPD ini dianalisis secara deskriptif. Ujivalidasi LKPD meliputi aspek materi, penyajian tampilan, dan bahasa yang dilakukan oleh dua validator dan duapraktisi. Hasil uji validasi LKPD yang dilakukan terhadap validator ahli dan praktisi memperoleh persentase rata-rata92,5%. Dan dari hasil respon yang telah dilakukan terhadap 10 peserta didik SMP Negeri 21 Bengkulu Utaramendapat rerata persentase skor sebesar 93.75%. Dapat disimpulkan bahan LKPD berbasis POE2WE (Prediction,Observation, Explanation, Elaboration, Write, Evaluation) pada materi Bioteknologi ini sangat layak untuk digunakansebagai bahan belajar siswa.Kata kunci : LKPD, POE2WE, bioteknologiABSTRACTThis research aims to develop POE2WE-based LKPD on Biotechnology material for junior high school students. Thistype of research is Research and Developmnet with 4D models (Define, Design, Develop, Disseminate) and is onlylimited to 3D or only at the Develop stage. The data collection techniques of this research are observation, interviewsand questionnaires. The data analysisis technuque of this LKPD was analyzed descriptively. The LKPD validation testincludes aspects of material, presentation, display, and language carried out by two validators and two practitioners.The results of the LKPD validation test conducted on expert validators and practitioners obtained an averagepercentage of 92.5%. And from the response thathas been carried out to 10 students of SMP Negeri 21 Bengkulu Utaragot an average percentage score of 93.75%. It can be concluded that the POE2WE-based LKPD material (Prediction,Observation, Explanation, Elaboration, Write, Evaluation) in the Biotechnology is very feasible to be used as studentlearning material.Keywords : LKPD, POE2WE, Biotechnology
Pengembangan e-modul pembelajaran IPA berorientasi etnosains alat musik pada materi gelombang bunyi untuk meningkatkan kemampuan berpikir kritis peserta didik Riska, Dara; Mayub, Afrizal; Karyadi, Bhakti
PendIPA Journal of Science Education Vol 8 No 2 (2024): June
Publisher : UNIB Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33369/pendipa.8.2.300-306

Abstract

This study aims to develop ethnoscience-oriented science learning e-modules on sound waves of musical instruments improve the critical thinking skills of junior high school students in Bengkulu City. The research method used is R&D with the ADDIE model which are Analysis, Design, Development, Implementation , and Evaluation. This research was conducted on 33 students of eighth grade junior high school 2 Bengkulu City by using pretest-posttest design method. The results showed that: 1) Students stated that it is necessary to develop ethnoscience electronic modules (e-modules) to improve critical thinking skills in science learning. 2) The results of expert and practitioner validation of e-module feasibility instruments consist of four aspects, namely aspects of graphics, media aspects, language feasibility aspects, presentation feasibility aspects, and content feasibility aspects were declared feasible with an average percentage of 87.20% 3) The results of expert and practitioner validation of critical thinking skills instruments consisting of elementary clarification, basic support, inference, providing advance clarification, and organizing strategies and tactics were declared feasible with an average percentage of 93.33% . 4) There is an increase in students' critical thinking skills after using e-modules with a moderate category and a significance value of <0.05 is obtained, meaning that there is a significant effect with the use of sound wave ethnoscience e-modules in improving students' critical thinking skills.5) Students' response to the sound wave ethnoscience e-modules developed in the science learning process reached a percentage of 90.79%. with a very good category.
Morphometric Study of Cuora amboinensis in the Ex-Situ Conservation Area of Bengkulu University Hardiansyah, Akbari; Karyadi, Bhakti; Parlindungan, Deni; Ruyani, Aceng; Sukarso, A.A.
BIOEDUKASI Vol 22 No. 3 (2024)
Publisher : PROGRAM STUDI PENDIDIKAN BIOLOGI FAKULTAS KEGURUAN DAN ILMU PENDIDIKAN UNIVERSITAS JEMBER

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/bioedu.v22i3.47453

Abstract

The Southeast Asian box turtle, Cuora amboinensis, known locally as the “Batok Turtle” is one of the world's most endangered turtle species. Conservation is needed to protect this species from the threat of extinction. Conservation efforts are complex and involve multiple scientific disciplines. This research was conducted in the Ex-situ Conservation area of ​​Bengkulu University, to determine the morphometric variations of adult C. amboinensis and determine the differences between males and females based on body size as a conservation effort. The research subjects were 20 adults (8 men and 12 women) of C. amboinensis. Several morphometric measurements that have been carried out include head width, carapace length, carapace width, curved carapace length, curved carapace width, carapace height, plastron length, plastron width, length of the midline on all plastron scales (sugar, humerus, pectoral, abdominal, femoral and anal), tail length, tail thickness, and body weight. Next, a t test was carried out to determine the morphometric characteristics of male and female C. amboinensis. The results of the analysis show that there are significant differences. C. amboinensis males have greater carapace length, tail length and tail thickness than females. C. amboinensis females have greater carapace height and humeral scale diameter than males.
Accumulation Heavy Metal on Shrimp White (Litopenaeus Vannamei) at the River Mouth of Ketahun, North Bengkulu Rinda Fitri Handayani; Bhakti Karyadi; Deni Parlindungan; Nirwana; Fidia Fibriana
Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Vol. 21 No. 2 (2024): Sainmatika : Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam
Publisher : Universitas PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/sainmatika.v21i2.15013

Abstract

Heavy metals are poisonous materials capable of causing damage to the normal aquatic organisms in the community around the Ketahun River estuary. The entry of heavy metals into the waters of the Ketahun River estuary is allegedly from various activities such as bathing, washing, toilet use, palm oil plantations, coal mining, and the disposal of gold mine waste. This is the background for conducting research to analyze the content of Hg, Cd, Pb, and As in Litopenaeus vannamei in the Ketahun River estuary. The determination of sampling locations was done using a purposive method, and the samples were tested using Inductively Coupled Plasma Mass Spectrometry (ICP-MS). The ecology of the river estuary was measured using a thermometer, pH meter, Dissolved Oxygen Meter, and Total Dissolved Solid Meter. The research results were analyzed using a descriptive qualitative method. According to the findings of the study, the metal content in Litopenaeus vannamei exceeds the quality standard with an analysis result of 0.2328 mg/kg, while the quality standard is 0.20 mg/kg, which has health implications. For sediment, the heavy metal that exceeds the quality standard is mercury at 0.5921 mg/kg, while the quality standard is 0.15 mg/kg. The ecology of the river estuary continues to be an ideal environment for living biota.
ANALISIS KEBUTUHAN MAHASISWA TERHADAP BAHAN AJAR DALAM PEMBELAJARAN MITIGASI BENCANA Devicawati, Devicawati; Karyadi, Bhakti; Johan, Henny; Farid, Muhammad; Winarni, Endang Widi
SILAMPARI JURNAL PENDIDIKAN ILMU FISIKA Vol 6 No 2 (2024): Silampari Jurnal Pendidikan Ilmu Fisika (SJPIF)
Publisher : LPPM UNIVERSITAS PGRI SILAMPARI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31540/sjpif.v6i2.3196

Abstract

This study aims to analyze students' needs for teaching materials in disaster mitigation learning. This research method uses quantitative descriptive research. Then analyzed and described to answer the existing problems. The subjects of the study were 53 students of the Science Education study program, University of Bengkulu, semester V. The instrument used was a questionnaire, with 3 aspects (disaster mitigation, teaching materials and learning process) and 24 questions. The results of the analysis showed that 95% of students chose the need for education about natural disaster mitigation. 11% of students did not know the Evacuation Location (gathering point) for the earthquake disaster at the University of Bengkulu and 22% of students did not know the flow map showing evacuation signs at the University of Bengkulu, so teaching materials that contain this are needed. The teaching materials needed by students are interactive and easy-to-use teaching materials, the contents of the material are clearly described in accordance with the facts in life, teaching materials that are audio-visual based (there are videos and animations), equipped with things that need to be considered in disaster mitigation and have a suitable color combination.
Studi Ekologi Makroinvertebrata di Area Kolam Konservasi Ex-situ Kura-Kura Siebenrockiella crassicollis di Universitas Bengkulu Hasbi; Karyadi, Bhakti; Parlindungan, Deni; Uliyandari, Mellyta; Defianti, Aprina
Biota : Jurnal Ilmiah Ilmu-Ilmu Hayati Vol 10, No 1 (2025): February 2025
Publisher : Universitas Atma Jaya Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24002/biota.v10i1.9730

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Makroinvertebrata merupakan organisme tidak bertulang belakang yang memiliki ukuran kasat mata, memiliki habitat di darat, dalam  tanah, perairan meliputi air laut dan tawar. Kelompok makroinvertebrata di perairan bisa dijadikan bioindikator suatu perairan. Makroinvertebrata di perairan air tawar contohnya kelompok keong air tawar, serangga air, udang dan Clitellata seperti lintah. Penelitian dilakukan pada bulan Oktober 2023 sampai Januari 2024 menggunakan teknik purposive sampling. Pengambilan sampel menggunakan leaf litter bags, jaring seser, dan mengambil sedimen dasar perairan menggunakan ember. Pengukuran parameter lingkungan dilakukan meliputi pengukuran intensitas cahaya, suhu air, tingkat keasaman (pH), oksigen terlarut (DO), kedalaman lumpur, dan kedalaman air. Analisis data menggunakan indeks Shannon-Wiener, indeks Eveness dan indeks Simpson. Hasil identifikasi makroinvertebrata menunjukkan terdapat 16 spesies terdiri atas 13 famili dan 4 kelas. Indeks keanekaragaman makroinvertebrata di area kolam konservasi ex-situ kura-kura Siebenrockiella crassicollis Universitas Bengkulu secara umum tekanan ekologis berada pada kondisi tekanan rendah hingga sedang, dapat dilihat pada nilai H’ berkisar antara 0,981 sampai 1,577, indeks keseragaman berkisar antara 0,354 sampai 0,569 dan indeks dominansi berkisar antara 0,342 sampai 0,506. Kelimpahan, keanekaragaman, keseragaman dan dominansi makroinvertebrata dipengaruhi oleh parameter fisika kimia dan kondisi lingkungan. 
Eksplorasi Potensi Tumbuhan Sebagai Pewarna Alami Batik Besurek Bengkulu Ramah Lingkungan Zahrani , Arifah; Sutarno, Sutarno; Bhakti karyadi; Riezky Maya Probosari; Afrizal Mayub; Yosie Andriani
Filogeni: Jurnal Mahasiswa Biologi Vol 5 No 1 (2025): Januari-April
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/filogeni.v5i1.56996

Abstract

Batik besurek merupakan warisan budaya khas Bengkulu yang dalam praktiknya pewarnaannya masih banyak menggunakan zat pewarna sintetis, yang berpotensi menimbulkan dampak negatif terhadap kesehatan dan lingkungan. Penelitian ini bertujuan untuk mengidentifikasi potensi tumbuhan lokal sebagai pewarna alami dalam pembuatan batik besurek, serta mengevaluasi kualitas dan ketahanan warnanya berdasarkan standar SNI ISO-105. Penelitian dilakukan dengan pendekatan eksploratif untuk mengidentifikasi tumbuhan lokal berpigmen alami, serta pendekatan eksperimental untuk menguji ketahanan warna hasil pewarnaan terhadap pencucian (ISO 105-C06), penjemuran (ISO 105-B02), dan gesekan (ISO 105-X12). Ekstraksi dilakukan menggunakan teknik maserasi dan boiling treatment, serta diaplikasikan pada kain mori menggunakan 3 jenis mordan yaitu tawas, tunjung, dan kapur sirih. Empat tanaman yang digunakan dalam penelitian ini, yaitu Hibiscus rosa-sinensis, Archidendron pauciflorum, Bougainvillea sp., dan Curcuma longa yang dikenal mengandung pigmen alami. Hasil menunjukkan bahwa Curcuma longa memiliki ketahanan warna tertinggi, dengan kategori “tidak pudar” untuk semua parameter ISO-105. Sebaliknya, Bougainvillea sp. menunjukkan ketahanan warna terendah, hanya mencapai skor 1-4 pada beberapa uji. Hasil ini menunjukkan bahwa penggunaan pewarna alami berbasis tumbuhan lokal memiliki potensi besar sebagai alternatif ramah lingkungan dalam pembuatan batik besurek. Pendekatan ini mendukung pelestarian lingkungan, pemanfaatan biodiversitas lokal, serta dapat diterapkan dalam pembelajaran kontekstual di sekolah.
Pengaruh Pupuk Trichokompos Terhadap Pertumbuhan Tanaman Brokoli (Brassica oleracea L.) Rahmadaniya, Novita Lola; Karyadi, Bhakti; Rosdiantini, Rosros
Agroteknika Vol 8 No 2 (2025): Juni 2025
Publisher : Green Engineering Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55043/agroteknika.v8i2.517

Abstract

Tanaman brokoli (Brassica oleracea L.) merupakan tanaman sayuran yang penting bagi kesehatan manusia dan memiliki nilai komersial tinggi. Namun, produksi brokoli di Indonesia belum mencukupi kebutuhan pasar lokal dan internasional. Penggunaan pupuk kimia yang berlebihan dapat menyebabkan kerusakan lingkungan dan serangan penyakit pada tanaman. Pupuk trichokompos yang menggunakan Trichoderma sp. dapat menjadi solusi untuk meminimalisir penggunaan bahan kimia dan serangan penyakit. Penelitian ini mempunyai tujuan untuk mengetahui pengaruh pemberian dosis pupuk trichokompos terhadap pertumbuhan tanaman brokoli. Penelitian ini menggunakan metode Rancangan Acak Kelompok (RAK) non faktorial atau satu faktor yaitu dosis pupuk trichokompos yang mencakupi empat perlakuan sebagai berikut P0 = tanpa pupuk trichokompos, P1=1 kg pupuk trichokompos, P2=1,5 kg pupuk trichokompos, dan P3=2 kg pupuk trichokompos dengan enam kali ulangan. Sehingga diperoleh 24 sampel percobaan atau 24 polybag tanaman brokoli. Hasil yang diperoleh pada peneltian ini yaitu pupuk trichokompos dengan berbagai dosis yang berbeda menghasilkan pertumbuhan tanaman brokoli yang berbeda, terutama pada parameter tinggi tanaman, diameter batang, berat bunga, dan berat segar tanaman, namun pada parameter panjang daun, lebar daun, dan jumlah daun tidak dipengaruhi oleh pupuk trichokompos. Sehingga perlu dilakukan penelitian lanjutan mengenai peningkatan kandungan unsur hara nitrogen, fosfor dan kalium di dalam bahan pembuatan trichokompos.
Populasi dan Habitat Labi-Labi Hutan (Dogania subplana) di Anakan Sungai Melintang Kabupaten Rejang Lebong Bengkulu Julianti, Apri; Karyadi, Bhakti; Parlindungan, Deni; Ruyani, Aceng; Defianti, Aprina
ULIN: Jurnal Hutan Tropis Vol 9, No 2 (2025)
Publisher : Fakultas Kehutanan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32522/ujht.v9i2.19606

Abstract

Penelitian ini bertujuan untuk mengidentifikasi jenis dan habitat Dogania subplana di anakan Sungai Melintang. Pengamatan dilakukan selama periode Juni-September 2024 dengan menggunakan metode pemasangan trap untuk menangkap sampel yang dibagi menjadi 4 stasiun. Sebagai habitat D. subplana, setiap stasiun dilakukan identifikasi tumbuhan, substrat serta mengukur abiotik. Parameter yang diamati meliputi Populasi. Data yang diperoleh dianalisis secara deskriptif kualitatif. Hasil penelitian diketahui jenis labi-labi yang ditemukan adalah Dogania Subplana, diperoleh 10 ekor tangkapan dengan jenis kelamin jantan 4 dan betina 6. Substrat habitat D. subplana yaitu berpasir, berlumpur dan berkerikil. Tutupan lahan stasiun (I, II) kebun kopi dan stasiun (III, IV) lahan bekas perkebunan. Jumlah tangkapan spesies hewan dari 4 stasiun yaitu 838 individu. Hasil pengukuran parameter lingkungan adalah pH (air (8,33–8,69), lumpur (1,79–2,08), tanah (5,91–6,22)), suhu (air (20,59–22,43°C), udara (21,75–31,84°C)), kelembapan (lumpur (51,2–54,9%), udara (51,78–87,56%), tanah (56,19–61,37%)), TDS (0,24–0,26), DO (6,14–7,6), dan intensitas cahaya (0,0546–741,22). Berdasarkan data lapangan diketahui bahwa identifikasi jenis dan habitat D. subplana di anakan Sungai Melintang masih tergolong baik, ditandai dengan sumber makanan di habitat alami masih berlimpah dan parameter lingkungan yang diamati berada pada rentang yang cukup mendukung kelangsungan hidup spesies ini.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Rahman Singkam ACENG RUYANI Adriataspen, Milzen Afrizal Mayub Alif Yanuar Zukmadini Alif Yanuar Zukmadini anjelie, Anggi Apriansyah, Rapi Aprina Defianti ardana, Rendy Wikrama W Arestu, Olyvia Oshi Ariefa Primair Yani Ariefa Primair Yani Arrosid, Muhammad Reza Arsela Eko Listiono As-Salimah, Ainun Mardiyah Asrati, Sirtika Aswin, Pani Bambang Prayogo, Bambang Bramastia Budiyanto Budiyanto CHOIRUL MUSLIM Dara, Niki Dwi Dia Defianti, Aprina Deni Parlindungan Devicawati, Devicawati Dewi, Novi Ratna Ekaputri, Rendi Zulni Elsi Adelia Fitri Elza Heryensi, Elza Heryensi Endang Widi Winarni Endang Widi Winarni Erna Yunita Sari Fahmizal, Fahmizal Faritzah, Chika Putri Febrianti, Een Suci Fema Anggriani Fidia Fibriana Fira Pratiwi Fira Pratiwi Firdaus, M Luthfi Hardiansyah, Akbari Haryono, M. Hasbi Henny Johan Henny Johan HERNANI - Heryensi, Elza ICE PURNAMAWATI Indra Sakti Irdam Idrus Irwan Koto Irwan Koto, Irwan Irwandi Ansori Irwandi Ansori Iwan Setiawan Julianti, Apri Kasrina Kasrina Kurniasih, Septi Laberta, Tinu Lestari, Dita Indah M. Lutfi Firdaus, M. Lutfi Marliansa, Meiredo Maulana, Yudi Mayub, Afrizal Mellyta Uliyandari Meri Suterisni Muhammad Farid Mustika, Reni Neni Murniati Nirwana Novianjani, Mutiara Nur Farida Nurma Yunita Indriyanti Nurohma, Siti Nursaadah, Euis Parlindungan, Deni PUJI LESTARI Putriani, Eli Puyanti, Puyanti Raden Mohamad Herdian Bhakti Rahmadaniya, Novita Lola Rendy Wikrama Wardana Riezky Maya Probosari Rinda Fitri Handayani Riska, Dara Rochman, Syaiful Roleka Julia Marcellina Ronggo Waskito, Jefri Roni Sastiawan Rosdiantini, Rosros Ruyani , Aceng Sagita, Fitria Saputra, Fajar Eko Sari, Ega Dwi Permata Sari, Fenty Fitrian Sari, Nurma Yunita Sembiring, Evata Disolva br Setiawati, Nindya Puri Shabrina, Annida Nurul Sihite, Nadia Okta Kristiana Sri Irawati SRI RAHAYU Sudirman Sudirman Sukarso, A.A. Sumiyati - Sutarno Sutarno Sutarno Sutarno, M Sutarno, M. Syaiful Rochman Taufik, Annisa Novianti Uliyandari, Mellyta Umaya Utami, Gita Nita Wardana, Rendy Wikrama Wiryono Wiryono Wiwit Trisnawati Yani, Rita Fitri Yennita Yosie Andriani Yulianingsih, Elysabet Yulinda Fitriani Zahrani , Arifah