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All Journal Jurnal Entropi Sainstek Microbiology Indonesia JURNAL ILMU PERTANIAN Biology, Medicine, & Natural Product Chemistry Journal of Tropical Biodiversity and Biotechnology Jurnal Penelitian Pendidikan IPA (JPPIPA) JURNAL PENDIDIKAN GLASSER Jurnal Biologi Tropis Jambura Edu Biosfer Journal Jambura Journal of Chemistry Jurnal Review Pendidikan dan Pengajaran (JRPP) Jurnal Pembelajaran dan Biologi Nukleus JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Jurnal Ilmiah Wahana Pendidikan BIOVALENTIA: Biological Research Journal Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) Jurnal Pendidikan, Sains dan Teknologi Prosiding Seminar Nasional Mini Riset Mahasiswa Jurnal Pengabdian Masyarakat Teknologi Pertanian Journal of Tropical Mycorrhiza Biodik: Jurnal Ilmiah Pendidikan Biologi HUMANIORASAINS Damhil: Jurnal Pengabdian kepada Masyarakat Inventa: Journal of Science, Technology, and Innovation Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Biodiversitas Journal of Biological Diversity Nusantara Bioscience
Yuliana Retnowati
Universitas Negeri Gorontalo
Religion 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 Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Physics Public Health Social Sciences Other

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Application of the Discovery Learning Model to Improve Students' Science Process Skills on Virus Material Sela Restia Tangahu; Ani M. Hasan; Jusna Ahmad; Masra Latjompoh; Yuliana Retnowati; Ilyas Husain
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS (JPBN) Vol 10, No 1 (2024): Jurnal Pembelajaran Dan Biologi Nukleus March 2024
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i1.5424

Abstract

Based on the results of a researcher interview with one of the biology teachers at SMAN 3 Gorontalo, science process skills  have been applied before, but in their implementation they do not get maximum results so that science process skills in students do not develop. The purpose of the study was to improve the science process skills of students who used the Discovery Learning model on virus material. This type of research is descriptive quantitative with Pre-Experimental Design research methods and One group pretest and posttest designs. The subjects in this study were 31 students of grade X-4 SMA Negeri 3 Gorontalo. The indicators of science process skills observed in this study consist of aspects of observing, interpreting, applying concepts, grouping, and communicating. The results obtained the average pretest score was 45.21%, and the average posttest score was 77.75%. From the results of the study, it can be concluded that the science process skills of grade X students of SMA Negeri 3 Gorontalo can be improved through the application of the Discovery Learning model
Analysis of Amylase Activity in Bacteria Isolated from Hot Spring of Pentadio Resort Nur'ain Marton Angio; Aryati Abdul; Syam S. Kumaji; Wirnangsi Din Uno; Yuliana Retnowati; Magfirahtul Jannah
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS (JPBN) Vol 10, No 1 (2024): Jurnal Pembelajaran Dan Biologi Nukleus March 2024
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i1.5506

Abstract

The hot spring of Pentadio Resort is one of the geothermal areas likely to be the place of bacteria or microorganisms that can produce amylolytic enzymes. This research aims to analyze bacteria in the Pentadio Resort hot springs that possess the potential to produce amylase enzymes, analyze the characteristics of bacterial isolates that produce amylase enzymes in Pentadio Resort hot springs and determine the types of bacteria that produce amylase enzymes in Pentadio Resort hot springs. The research employs a qualitative and descriptive method. The research involved several methods, including sample collection, media preparation, isolation and selection of thermophilic bacterial isolates, purification of thermophilic bacterial isolates, selection of isolates producing amylase enzymes, identification of selected isolates (motility test, biochemical test, gram staining), and molecular identification. The research yielded seven isolates, and isolate code A6 demonstrated the potential to produce amylase enzymes with a clear zone size of 23,26 mm, bacillus, gram positive, and positive motility. Subsequently, molecular identifidation was carried out in which, based on the results of phylogenetic tree reconstractiopisalate A6 was related to the bacteria Bacillus cereus strain MD 152, which belongs to the Bacillus cereus bacteria
Diversity of Santigi (Pemphis acidula J.R.Forst. & G.Forst.), A Mangrove Association in Tomini Bay, Sulawesi, Indonesia Baderan, Dewi Wahyuni K.; Rahim, Sukirman; Angio, Melisnawati H.; Akbar, Muh. Nur; Jannah, Magfirahtul; Retnowati, Yuliana; Utina, Ramli
Journal of Tropical Biodiversity and Biotechnology Vol 9, No 1 (2024): March
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtbb.83889

Abstract

Pemphis acidula is a wild plant in rocky or sandy coastal areas and mangrove ecosystems. Different geographic characteristics may affect plant adaptability and have an impact on the emergence of various genotypes. This study was performed to reveal the phenetic relationship and genetic variation of P. acidula in 3 different areas in Tomini Bay, Gorontalo Province, Indonesia. We took 3 samples from each location and analysed them using 14 morphological characters and molecular approaches based on ISSR markers and ITS gene. The results showed that P. acidula on Olele had bigger sizes in some morphological features compared to the plants in other study areas. The phenetic analysis showed that P. acidula at Biluhu and Dulanga were more closely related, although P. acidula at the 3 locations had 100% similarity. Genetic variation analysis showed the highest genetic similarity based on ISSR markers was found in Dulanga and Biluhu samples (76.8%). Phylogenetic based on ITS gene revealed that Olele samples were in the same clade with P. acidula accession from GenBank (genetic distance 0-0.19%), while Biluhu samples were a sister group (genetic distance 24.97-25.03%) even though their percentage identity corresponds to P. acidula (81.34%). Plant adaptation to different habitat conditions may affect the genetic diversity of P. acidula. 
Pendampingan Pembuatan Ecoprint pada Kelompok Perempuan untuk Pengembangan Produk Fashion Berbahan Dasar Potensi Lokal di Dusun Pahu Kabupaten Gorontalo Solang, Margaretha; Mustaqimah, Nur; Retnowati, Yuliana; Jannah, Magfirahtul
Damhil: Jurnal Pengabdian kepada Masyarakat Vol 3, No 2: December 2024
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/damhil.v3i2.27884

Abstract

Usaha teknik ecoprint dianggap memiliki peluang besar untuk berkembang, terutama di wilayah pedesaan, karena memiliki potensi alam yang melimpah dengan pepohonan yang lebat, tumbuhan yang subur, dan beragam jenis dedaunan yang bisa dimanfaatkan untuk membuat produk ecoprint. Kegiatan  pembuatan ecoprint di  Indonesia  sudah  banyak  dilakukan oleh pecinta ecoprint, namun belum banyak dikenal oleh masyarakat umum. Di Provinsi Gorontalo sendiri, telah ada beberapa  usaha fashion lokal yang memproduksi produk ecoprint melalui pemesanan oleh konsumen terlebih dahulu, namun hal ini masih tidak familiar bagi masyarakat padahal bisa menjadi salah satu sumber penghasilan dalam bidang ekonomi kreatif, tidak terkecuali masyarakat di Dusun Pahu Desa Bontula, Kecamatan Asparaga Kabupaten Gorontalo. Kegiatan Pendampingan Pembuatan Ecoprint pada Kelompok Perempuan untuk Pengembangan Produk Fashion  bagi masyarakat Dusun Pahu, Desa Bontula, Kecamatan Asparaga Kabupaten Gorontalo ini penting untuk dilakukan sebagai usaha dalam menambah pengetahuan serta keterampilan masyarakat untuk mengembangkan hobi dan memperoleh tambahan penghasilan. Pada pendampingan ini, dipilih teknik pounding karena teknik ini relatif mudah dilakukan, tidak memerlukan alat dan bahan yang mahal. Kegiatan pengabdian ini dilaksanakan secara tatap muka. Peserta yang mengikuti kegiatan berjumlah 14 orang yang merupakan kelompok wanita Dusun Pahu. Kegiatan dilaksanakan pada tanggal 25 Mei 2024 bertempat di Dusun Pahu, Desa Bontula, Kecamatan Asparaga, Kabupaten Gorontalo. Kegiatan ini melalui beberapa tahapan pelaksanaan, mulai dari persiapan, perencanaan, pelaksanaan, dan evaluasi yang melibatkan narasumber yang sudah expert di bidang pembuatan ecoprint.
Studi Kekerabatan Morfologi Jagung (Zea mays L.) Varietas Lokal Di Gorontalo Tadidik, Ulfaida H.; Kandowangko, Novri Youla; Febriyanti, Febriyanti; Retnowati, Yuliana; Ahmad, Aisyah
AGRIUM: Jurnal Ilmu Pertanian Vol 28, No 1 (2025)
Publisher : UNIVERSITAS MUHAMMADIYAH SUMATERA UTARA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/agrium.v28i1.23146

Abstract

Jagung varietas lokal Gorontalo merupakan salah satu jenis jagung yang memiliki kandungan gizi tinggi. Namun, jagung lokal jarang ditemukan dan belum dikenal secara luas oleh masyarakat. Kurangnya informasi terkait varietas ini menyebabkan kesulitan dalam pengembangannya, terutama terkait karakter fenetik jagung yang penting dalam program pemuliaan tanaman. Penelitian ini bertujuan untuk mengetahui karakter dan hubungan kekerabatan fenetik jagung varietas lokal Gorontalo berdasarkan marka morfologi. Penelitian ini dilaksanakan di Sreen House Balai Penerapan Standar Instrumen Pertanian (BPSIP) Gorontalo. Penelitian ini bersifat deskriptif kuantitatif. Pengamatan karakteristik morfologi terdiri dari 50 karakter meliputi habitus, akar, batang, daun dan bunga. Analisis hubungan kekerabatan dilakukan dengan metode UPGM (Unweighted Pair-Group with Mean of Arithmetic) melalui program statistik MVSP (Multivariate Statictical Program). Hasil karakterisasi pada empat varietas jagung lokal Gorontalo yaitu Binthe Doti, Binthe Pulo, Binthe Siropu dan Binthe Momala memiliki perbedaan dan persamaan karakter morfologi. Hasil analisis kekerabatan dari empat varietas jagung lokal Gorontalo berdasarkan dendogram menujukkan bahwa koefisien kemiripan berkisar 0,51-0,73. Hubungan kekerabatan yang sangat dekat terjadi antara Binthe Siropu dan Binthe Momala, diikuti oleh hubungan dengan Binthe Pulo. Sementara, Binthe Doti memiliki hubungan kekerabatan yang paling jauh dengan ketiga varietas lainnya, ditunjukkan oleh tingkat kesamaan yang lebih rendah.
Analisis Butir Soal Ujian Akhir Sekolah (UAS) Kelas X Materi Biologi SMA Negeri 2 Gorontalo Pobela, Juliani; Hasan, Ani M.; Retnowati, Yuliana; Dama, Lilan; Mardin, Herinda; Kumaji, Syam S.
Jurnal Ilmiah Wahana Pendidikan Vol 11 No 5.D (2025): Jurnal Ilmiah Wahana Pendidikan 
Publisher : Peneliti.net

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Abstract

This research aims to analyze scientific literacy competency in class x Final School Examination (UAS) questions on environmental pollution Gorontalo City 2 Public High School The approach and type of this research is descriptive qualitative. The techniques used in collecting data in this research were interview and documentation techniques. The research results obtained by researchers in the field are that there are four indicators of scientific literacy competency that were successfully analyzed in the School Final Examination (UAS) questions, namely the first indicator is an indicator that aims to identify valid scientific opinions, the first indicator is found in questions number 1,2,3,4,5,6,7,9,11,12 and 13. The second indicator is an indicator that trains students to carry out effective literature searches. The second indicator is found in questions number 2,3,6 and 11. The third indicator is found in question number 4,5,8, 10 and 11, in the third indicator students are trained in their ability to understand research design elements that can be obtained using scientific data. The fifth indicator is in question number 5, the fifth indicator aims to train students in solving problems in everyday life with quantitative skills.
Detection of Antibody Titers Against New-Castle Disease Virus (ND) and Monocyte Profile in Free-Range Chickens (Gallus domesticus) at a Farm in Permata Village, Tilongkabila Sub-district, Bone Bolango District Suaiba, Zachrianty; Djuna, Lamondo; Wirnangsi Din, Uno; Yuliana , Retnowati; Margaretha , Solang; Kristina Dwi , Wulandari
BIOVALENTIA: Biological Research Journal Vol. 10 No. 2 (2024)
Publisher : Biology Department, Faculty of Mathematics and Natural Sciences, Sriwijaya University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24233/biov.10.2.2024.423

Abstract

Abstract: This study aims to determine the presence of Newcastle Disease (ND) virus antibody titers and the percentage of monocyte cells in native chickens (Gallus domesticus) at a farm in Permata Village, Tilongkabila Subdistrict, Bone Bolango Regency. The method used in this research is qualitative descriptive. Antibody titer data were obtained from the results of the HI (Haemagglutination Inhibition) test, while the percentage of monocyte cells was determined using 10% Giemsa staining with parallel track counting.The results showed that out of 50 samples, 10 samples tested positive for antibody titers (20%), while 40 samples tested negative (80%). For positive antibody titer samples, leukocyte count totaled 3,310, with 250 monocytes, yielding a percentage of 7.55%. For negative samples, leukocyte count totaled 10,560, with 360 monocytes, resulting in a percentage of 3.20%, which falls within the normal range of monocyte cell values.
Antimicrobial Activity of Actinomyctes from the Rhizosphere of Pandanus Plants (Pandanus spp.) Putri, Tarissa Eka; Yuliana Retnowati; Novri Youla Kandowangko; Abubakar Sidik Katili; Wirnangsi Din Uno
Journal of Tropical Mycorrhiza Vol. 4 No. 1 (2025): April
Publisher : Asosiasi Mikoriza Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58222/jtm.v4i1.84

Abstract

This quantitative descriptive research aimed to describe the antimicrobial activity and phylogenetic relationships of Actinomycetes from the rhizosphere of pandan (Pandanus spp.). Soil samples were taken from three different villages in Gorontalo Regency, including Bontula Village, Asparaga Sub-district, Lombongo Village, Suwawa Tengah Sub-district, and Moutong Village, Tilongkabila Sub-district, Bone Bolango Regency. Isolation was carried out using SCA media, resulting in six Actinomycetes isolates with different colony morphologies. Antimicrobial activity tests were carried out using the cross-streak method against Escherichia coli, Staphylococcus aureus, Candida albicans, Fusarium oxysporum, and Neocosmospora solani. The results showed that only one isolate, IRzP-at.k, showed significant antimicrobial activity, against Escherichia coli and Staphylococcus aureus with inhibition zones of 13,31 mm and 13,67 mm, respectively. The IRzP-at.k isolate also showed inhibition against Candida albicans and Fusarium oxysporum with inhibition zones of 34,12 mm and 11,25 mm, but did not show inhibition against Neocosmospora solani. Phylogenetic analysis based on 16S rRNA gene sequences identified the isolate as closely related to Streptomyces vinaceusdrappus (97.42% similarity). This research indicated the potential of the IRzP-at.k isolate as a source of new antimicrobial compounds and strengthens the role of the pandan rhizosphere as a habitat rich in Actinomycetes.
Analisis Kandungan Antosianin Jagung Lokal Gorontalo (Zea mays, L.) Varietas Binthe Kiki, Binthe Momala, Binthe Pulo Cono, Titi Hawanda Metania; Kandowangko, Novri Youla; Retnowati, Yuliana
Jambura Journal of Chemistry Vol 6, No 2 (2024): August
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/jambchem.v6i2.9204

Abstract

Penelitian ini bertujuan untuk menganalisis kadar antosianin pada jagung lokal Gorontalo varietas Binthe Kiki, Binthe Momala, dan Binthe Pulo. Metode yang digunakan adalah penelitian deskriptif kuantitatif dengan teknik ekstraksi dan pengukuran antosianin menggunakan metode pH diferensial pada panjang gelombang 530 nm dan 700 nm. Hasil penelitian menunjukkan bahwa ketiga varietas mengandung antosianin dengan kadar yang bervariasi, yaitu Binthe Kiki sebesar 9,00 ppm, Binthe Momala sebesar 3,77 ppm, dan Binthe Pulo sebesar 3,13 ppm. Kandungan antosianin tertinggi ditemukan pada varietas Binthe Kiki, yang ditandai dengan warna biji orange. Perbedaan kadar antosianin antar varietas dipengaruhi oleh faktor genetik, warna biji, dan kondisi lingkungan. Temuan ini menunjukkan bahwa jagung lokal Gorontalo, khususnya varietas Binthe Kiki, berpotensi sebagai sumber pewarna alami sekaligus antioksidan bagi kesehatan manusia.
Pemberdayaan Masyarakat Melalui Pendampingan Pembuatan Kerupuk Kerang Darah untuk Meningkatkan Perekonomian Masyarakat di Desa Karya Indah, Kabupaten Pohuwato Solang, Margaretha; Saman, Widya Rahmawaty; Husain, Ilyas; Kumaji, Syam; Retnowati, Yuliana; Santoso, Budy
Jurnal Pengabdian Masyarakat Teknologi Pertanian Vol 2, No 2 (2023)
Publisher : Universitas Negeri Gorontalo

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Abstract

KKN-MBKM is one of the media to carry out the tridharma functions of higher education for every lecturer. One of these tridharma is by carrying out community service. The problems obtained from Karya Indah Village which became the object included the absence of professional management and the absence of training and community development on how to process blood clams into crackers which can be used as a home-based business. The approach method in the program includes demonstrations and presentations on the process of processing blood clams into crackers and how to package blood clam crackers, all of these activities are accompanied by the implementing team. The results achieved in the KKN-MBKM program are blood clam cracker products that are packaged properly in plastic packaging as well as scientific articles. Direct practice is carried out to facilitate understanding for the target community. From the results of this practice, it is hoped that the community can apply the processing of blood clams into crackers which can improve the economy of the people of Karya Indah Village, Buntulia District, Pohuwato Regency, Gorontalo Province.
Co-Authors Abubakar Sidik Katili Adelia Salsabila Rahman Ahmad, Aisyah Aisyah Ahmad Aisyah Ahmad Alfandi Kibu Angio, Melisnawati H. ANI M. HASAN Ani M. Hasan Ani M. Hasan Ani M. Hasan Ani M. Hasan Apriliyanti Mohulaingo Aryati Abdul Asep S. Abdurrahmat Asniawati Zainuddin Asniwati Zainuddin Budy Santosa Budy Santoso Chairunnisah J Lamangantjo Chairunnisah J Lamangantjo Citra Leonita Matalauni Cono, Titi Hawanda Metania Dama, Dewi Rahayu Danial Mohamad Devi Bunga Pagalla Dewi Farhamni Dewi Wahyuni K Baderan Dewi Wahyuni K. Baderan Djuna, Lamondo Eka Zahra Solikahan Eman Rahim ENDANG S. SOETARTO ENDANG SUTARININGSIH SOETARTO ENDANG SUTARININGSIH SOETARTO Fatma Novriyanti Abdul febriyanti febriyanti Febriyanti Febriyanti Frida Maryati Yusuf Harista Agustina HASAN, ANI M. Hayatiningsih Gubali Herinda Mardin Husain, Ilyas Ilyas Husain Ilyas Husain Ilyas Husain Indra Domili Irsan, Mohamad Ismail, Lilis U. Jusna Ahmad Jusran Jusran Kristina Dwi , Wulandari LANGKAH SEMBIRING LANGKAH SEMBIRING Latifa Tangkudung Ledy Mutmainah Y Syahril Lilan Dama Magfirahtul Jannah Mamu, Hartono Margaretha Solang Masra Latjompoh Moha, Tri Vinesa Mohamad Ikbal Riski Danial Muh Ikram Nur Muh. Nur Akbar Muhammad Isra Muhammad Isra Muhlis Muhlis Mustaqimah, Nur Nazifah R Adam Noer Fahnessa Dako Nona Wingti Posangi Novian Swasono Hadi NOVRI YOULA KANDOWANGKO NOVRI YOULA KANDOWANGKO Novri Youla Kandowangko Novri Youla Kandowangko Nur Afni Machmud Nur'ain Marton Angio Nurdin . Nurfadhlia Djafar Nurhayati Bialangi Nurinda Umadji Nurul Fajryani Usman Pangalo, Paulus PENI ULFIANI Pobela, Juliani Putri, Tarissa Eka Radina I. Timumun Rahmatiya, Rahmatiya Ramli Utina Riskanarti K. Lihaawa Risnayanti R Juramang Rulan U. Mustapa Salma Puasa Sela Restia Tangahu Siti Ainun Mabuia Siti Humairah Eka Putri SORAYA FITRIA NASIR Sri Delviyanti Lihawa Sri Yulianti Hadji Suaiba, Zachrianty SUKARTI MOELJOPAWIRO SUKARTI MOELJOPAWIRO Sukarti Moeljopawiro Sukirman Rahim Syam S. Kumaji Syapril, Syapril Tadidik, Ulfaida H. Tjut S. Djohan TJUT SUGANDAWATY DJOHAN TJUT SUGANDAWATY DJOHAN Torana, Melanie Triska Wahyuni Dawit Vivien Novariana Vrilianika Vrilianika Wawan Pembengo Widya Rahmawaty Saman Wirnangsi D Uno Wirnangsi D Uno Wirnangsi D Uno Wirnangsi D. Uno Wirnangsi D. Uno Wirnangsi D. Uno Wirnangsi D.Uno Wirnangsi Din Uno Wirnangsi Din, Uno Wirnangsih D. Uno Yulianti Humokor Yuniyarti Hulu Yusriyah Yusriyah