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All Journal IAES International Journal of Robotics and Automation (IJRA) Jurnal Biologi Udayana El-Hayah : Jurnal Biologi Biota: Jurnal Ilmiah Ilmu-Ilmu Hayati Jurnal Fisika FLUX Pedagogi Hayati JPPPF (Jurnal Penelitian dan Pengembangan Pendidikan Fisika) SPEKTRA: Jurnal Kajian Pendidikan Sains SEJ (Science Education Journal) Jurnal Penelitian Pendidikan IPA (JPPIPA) BIOEDUKASI Journal of Science Education Research PENDIPA Journal of Science Education Diklabio: Jurnal Pendidikan dan Pembelajaran Biologi JURNAL ILMIAH PETERNAKAN TERPADU BIOEDUSAINS: Jurnal Pendidikan Biologi dan Sains Sainmatika: Jurnal Ilmiah Matematika dan Ilmu Pengetahuan Alam Jurnal Biosilampari: Jurnal Biologi COMPTON: Jurnal Ilmiah Pendidikan Fisika JPBIO (Jurnal Pendidikan Biologi) Jurnal Biotek IJEEM - Indonesian Journal of Environmental Education and Management Kasuari: Physics Education Journal (KPEJ) Agroteknika Abdimas Universal ULIN: Jurnal Hutan Tropis Silampari Jurnal Pendidikan Ilmu Fisika Dharma Raflesia : Jurnal Ilmiah Pengembangan dan Penerapan IPTEKS Hydrogen: Jurnal Kependidikan Kimia Bioscientist : Jurnal Ilmiah Biologi DIKSAINS : Jurnal Ilmiah Pendidikan Sains JURNAL HUTAN TROPIS Al Jahiz: Journal of Biology Education Research Filogeni: Jurnal Mahasiswa Biologi Andromeda: Jurnal Pengabdian Masyarakat Rafflesia IJIS Edu : Indonesian Journal of Integrated Science Education Analit: Analytical And Environmental Chemistry
BHAKTI KARYADI
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Agriculture, Biological Sciences & Forestry Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Social Sciences Other

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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

Abstract

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. 
Integrasi Mitigasi Bencana Global Warming pada Materi Pembakaran Hidrokarbon melalui Pendekatan RBL-STEAM Shabrina, Annida Nurul; Karyadi, Bhakti
Hydrogen: Jurnal Kependidikan Kimia Vol. 11 No. 6 (2023): December 2023
Publisher : Universitas Pendidikan Mandalika

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/hjkk.v11i6.9911

Abstract

AbstractThe primary objective of this paper is to address the mitigation of disasters resulting from climate change and global warming. Such disasters are the result of increased greenhouse gas emissions, primarily caused by human activities like deforestation and the use of fossil fuels. To analyze the concept of hydrocarbon combustion from basic competencies (KD) 3.3 and 4.3 of chemistry class XI, we employed a qualitative descriptive method supported by a literature review. The paper investigates the relationship between climate change, the greenhouse effect, the carbon cycle, and their effects on the environment and health. Furthermore, it proposes a learning design that combines the Research-Based Learning (RBL) model with the STEAM approach to enhance students' comprehension of climate change, the consequences of hydrocarbon combustion, and emergency response measures. One of the highlighted learning strategies is the creation of an interactive and engaging mini park mockup to facilitate student understanding. The use of technology, specifically machine learning, is recommended for decision making in global warming disaster mitigation. This paper stresses the significance of integrating chemistry learning for knowledge and skills development in KD 3.3 and 4.3, and for understanding global warming and disaster mitigation efforts. The goal is to provide students with science literacy skills as well as the ability to identify concrete actions in reducing the negative impacts of climate change.
Identification of the Diversity of Medicinal Plants Used by Battra in North Bengkulu Fanisah, Kiki; Setiawan, Iwan; Parlindungan, Deni; Karyadi, Bhakti; Defianti, Aprina; Yani, Ariefa Primair
Jurnal Penelitian Pendidikan IPA Vol 9 No 10 (2023): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i10.3876

Abstract

All kinds of plants that are found in nature and have medicinal properties are considered medicinal plants. Utilization of medicinal plants can be used directly and mixed. Battra is a person who has knowledge of traditional medicine and is capable of concocting medicinal plants. North Bengkulu is one of the districts that still use conventional medical care. Utilizing medicinal plants that are proven to be able to treat those derived from natural ingredients can be healthful because of very few side effects compared to drugs that contain chemicals. The goal of the study was to catalog the various medicinal herbs used by Battra North Bengkulu. This study used 10 respondents' interviews as its approach. Battra uses 64 species from 37 families of medicinal plants as traditional medicinal ingredients. The most common type of family is Fabaceae. The habitus group that is widely used is 45% trees. Types of diseases that are commonly treated traditionally using these plants include fever, toothache, itching, cramps, internal heat, scales, stomach pain, malaria, long-term fever, colds (cholera), ulcers, lungs, kidney stones, jaundice, high blood pressure, appendicitis, fussy children, eye disease, intestinal worms, kesapo, sprains, tumors and gout. In the processing of medicinal plants by Battra in North Bengkulu, 11 processes the highest drug processing method was by boiling as much as 37%.
ANALYSIS OF ASCORBIC ACID AND BORAX USING PURPLE SWEET POTATO EXTRACT AS A COLORIMETRIC SENSOR IN FOOD AND DRINKS USING DIGITAL IMAGES As-Salimah, Ainun Mardiyah; Sutarno, Sutarno; Yani, Ariefa Primair; Karyadi, Bhakti; Firdaus, M Luthfi
Analit : Analytical and Environmental Chemistry Vol. 9, No. 01 April (2024) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The addition of ascorbic acid and borax to food and drinks if it exceeds the threshold limit can have dangerous effects on consumers. This research aims to create a simple and fast but accurate method for analyzing ascorbic acid and borax, using purple sweet potato extract as a colorimetric sensor and quantitative analysis using digital images. The results of the digital image have an accuracy of 99% with LOD (Limit of Detection) of 1.96% and LOQ (Limit of Quantity) with a value of 6.53% for ascorbic acid. As for borax, the LOD is 0.54% and the LOQ is 1.78%. Semi-quantitative tests for ascorbic acid and borax in food and drinks can be carried out using a cotton test kit. The wet noodle food sample tested (purchased from around the Bengkulu University campus) was proven not to contain borax because there was no color change. However, the packaged drink tested positive for ascorbic acid as indicated by a color change from purple to pink.
Qualitative and Quantitative Detection of Borax in Food Using Butterfly Pea Flower Extract Fitriani, Detty; Karyadi, Bhakti; Nursa'adah, Euis
Al Jahiz Vol 6 No 2 (2025): Al-Jahiz: Journal of Biology Education Research, July-December 2025 (In Progress)
Publisher : Fakultas Tarbiyah dan Ilmu Keguruan UIN Jurai Siwo, Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32332/al-jahiz.v6i2.11116

Abstract

The detection of borax in food is of critical importance due to its toxic properties, which pose serious health risks, especially when consumed continuously, even in small amounts. Therefore, an environmentally friendly, accessible, and easy-to-use detection method is needed for broader application, particularly in routine food monitoring. This study introduces a novel quantitative detection approach using butterfly pea flower (Clitoria ternatea L.) extract as a natural indicator, combining visual colorimetry and UV-Vis spectrophotometry for dual-mode borax analysis. Unlike previous studies that focused solely on qualitative color observation, this research establishes a quantitative correlation between absorbance and borax concentration, supported by strong linearity (R² = 0.9942) and high sensitivity (LoD = 0.026 ppm; LoQ = 0.088 ppm). The butterfly pea extract, rich in anthocyanins, produced a distinct blue color that shifted to green upon interaction with borax, forming a specific butterfly pea–borax complex with a maximum wavelength (λmax) at 624 nm. Application to real meatball samples revealed borax contents of 0.528% and 0.4641% in two samples, respectively. The integration of butterfly pea extract with turmeric paper as a dual-confirmation system enhances analytical reliability while maintaining cost-effectiveness and environmental safety. This work contributes a validated, eco-friendly, and quantitative natural detection method that bridges the gap between laboratory precision and community-based food safety monitoring.
Study of dogania subplana aclimatization in the turtle learning center university of bengkulu Marliansa, Meiredo; Karyadi, Bhakti; Parlindungan, Deni; Ruyani, Aceng; Nursa'adah, Euis
JPBIO (Jurnal Pendidikan Biologi) Vol 10, No 2 (2025): November 2025
Publisher : STKIP Persada Khatulistiwa Sintang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31932/jpbio.v10i2.4953

Abstract

The forest softshell turtle (Dogania subplana) is a species increasingly threatened by habitat destruction and overexploitation. This study aims to identify the acclimatization process of D. subplana in an artificial environment, specifically, an aquarium at the Turtle Learning Center (TLC). The research was conducted over 30 days from July to August 2024. Observations were made on daily behavior, body temperature, and health condition, individual biometric measurements, and environmental (abiotic) parameters. The results showed that daily behaviors such as feeding, basking, and hiding occurred regularly, indicating the species' ability to adapt to a new environment. The turtles experienced an increase in body weight, while growth in carapace length and width was very slow. The body temperature of D. subplana varied in accordance with the surrounding environmental temperature, reflecting its dependence on ambient conditions. Some individuals experienced minor health issues, such as fungal infections, but the majority remained active and healthy. Environmental factors such as temperature, humidity, pH, dissolved oxygen, total dissolved solids, and light intensity were within ranges conducive to acclimatization. These findings suggest that the aquarium at the TLC is quite effective as an ex situ conservation facility in supporting the adaptation process of D. subplana  outside its natural habitat.
Co-Authors A.A. Ketut Agung Cahyawan W Abdul Rahman Singkam ACENG RUYANI 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 Defianti, Aprina Deni Parlindungan Detty Fitriani Devicawati, Devicawati Dewi, Novi Ratna Dwi Dia Dara, Niki Ekaputri, Rendi Zulni Elsi Adelia Fitri Elza Heryensi, Elza Heryensi Endang Widi Winarni Endang Widi Winarni Erna Yunita Sari Euis Nursa’adah Fahmizal, Fahmizal Fanisah, Kiki Faritzah, Chika Putri Febrianti, Een Suci Fema Anggriani Fidia Fibriana Fira Pratiwi Firdaus, M Luthfi Gusti, Widia Hardiansyah, Akbari Haryono, M. Hasbi Henny Johan Henny Johan HERNANI - Heryensi, Elza ICE PURNAMAWATI Indra Sakti Irdam Idrus 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 Meri Suterisni Muhammad Farid Mustika, Reni Neni Murniati Nirwana Novianjani, Mutiara Nur Farida Nurma Yunita Indriyanti Nurohma, Siti Nursaadah, Euis Nursa’adah, 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 Sagita, Fitria Saputra, Fajar Eko Sari, Ega Dwi Permata Sari, Fenty Fitrian Sari, Nurma Yunita 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 Uliyandari, Mellyta Umaya Urip Santoso Utami, Gita Nita Wardana, Rendy Wikrama Wikrama Wardana, Rendy Wiryono Wiryono Wiwit Trisnawati Yani, Rita Fitri Yennita Yosie Andriani Yulianingsih, Elysabet Yulinda Fitriani Zahrani , Arifah