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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 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 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 HUMANIORASAINS Damhil: Jurnal Pengabdian kepada Masyarakat Inventa: Journal of Science, Technology, and Innovation Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
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 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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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.
Isolasi dan Uji Aktivitas Antibakteri Actinomycetes dari Rhizosfer Bakau di Hutan Bakau Torosiaje Gorontalo Retnowati, Yuliana; Sembiring, Langkah; Moeljopawiro, Sukarti; Djohan, Tjut S.; Soetarto, Endang S.
Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek) 2017: Prosiding SNPBS (Seminar Nasional Pendidikan Biologi dan Saintek)
Publisher : Universitas Muhammadiyah Surakarta

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Abstract

Actinomycetes penghasil antibiotik telah dieksplorasi dari berbagai sumber di lingkungan, terutama lingkungan ekstrim.Hutan bakau Torosiaje di Provinsi Gorontalo memiliki kondisi geomorfologi yang unik berupa ekosistem hutan bakau karsdengan dua tipe area yaitu tipe fringe dan overwash mangrove yang tersusun oleh jenis bakau yang bervariasi. Penelitian inidi desain untuk mendapatkan isolat Actinomycetes dari rhizosfer berbagai jenis bakau di hutan bakau Torosiaje Gorontalodan menganalisis aktifitas antibakteri melawan bakteri patogen. Sampel tanah dikoleksi dari rizosfer tujuh jenis pohon bakauyaitu Rhizophora mucronata dan Bruguiera gymnorhiza pada tipe hutan overwash, Rhizophora apiculata, Bruguieragymnorhiza pada zona middle tipe hutan Fringe, Avicenia marina, Xylocarpus sp, Ceriops tagal dan Soneratia alba padazona upper tipe hutan fringe. Pre-treatmen sampel tanah berdasarkan metode panas basah pada suhu 60oC selama 15 menit.Isolasi selektif Actinomycetes menggunakan medium Starch Casein Agar yang disuplementasi dengan cyclohexamide dannystatin. Seleksi isolat penghasil antibiotik berdasarkan metode agar blok menggunakan bakteri uji Eschericia coli,Staphylococcus aureus dan Bacillus subtillis. Aktifitas antibakteri ditandai dengan pembentukan zona hambat disekitarpertumbuhan actinomyctes. Diameter zona hambat dan diameter koloni Actinomycetes diukur untuk menentukan indekszona hambat. Hasil penelitian diperoleh sebanyak 167 isolat Actinomycetes yang terdistribusi pada rizosfer 7 jenis bakau. 77isolat Actinomycetes menunjukkan aktifitas antibakteri melawan bakteri patogen, terdiri dari 52 isolat melawan bakteriGram-positif (narraw spectrum) dan 25 isolat melawan bakteri Gram-positif dan Gram-negatif (broad spectrum). IsolatActinomycetes penghasil antibiotik memiliki karakter morfologi yang bervariasi yang didominasi oleh koloni berwana putihdan pigmen terdifusi berwarna kekuningan sampai coklat dan dikelompokkan kedalam 15 grup.
Bacterial Teaching Material Supplement Based on the Study of Identification of Resistant Bacteria in Leachate at TPA Talumelito as a Virtual Laboratory-Based Digital Learning Resource Mabuia, Siti Ainun; Uno, Wirnangsi D.; Retnowati, Yuliana; Hasan, Ani M.; Kumaji, Syam S.; Dama, Lilan
Jurnal Penelitian Pendidikan IPA Vol 10 No 1 (2024): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i1.5134

Abstract

Differentiated learning is the core of the independent curriculum now.The aim of this research is to develop an instrument for measuring the cognitive learning outcomes of high school students based on differentiated learning on elasticity material and to obtainits characteristics. Differentiation, in this case, is differentiation of student learning styles. The instrument grid is arranged based on indicators of cognitive learning outcomes, which are then used to compile question items. The test instrument consists of two test sets, each of which has 9 items including two anchor itemsso that the total number of items is 16 items and has been validated by 6 experts. The validated instrument was tested on 252 respondents spread across high schools in the low, medium and high categories. Dichotomous data were analyzed using the Partial Credit Model (PCM). The trial results showed that all 16 items and the differentiated learning-based student cognitive learning outcomes test instrument were proven to be valid, fit the PCM model, and reliable, which means all items were in the good category. Thus, the test instrument developed meets the requirements for measuring the cognitive learning outcomes of high school students on elasticity material based on differentiated learning.
DOMINANSI DAN KEMERATAAN JENIS SERANGGA PADA TANAMAN JAGUNG YANG DIBERI PUPUK ORGANIK CAIR GULMA SIAM (CHROMOLAENA ODORATA) Irsan, Mohamad; Retnowati, Yuliana; Lamangantjo, Chairunnisah J.; Danial, Mohamad Ikbal Riski A.; Muhlis, Muhlis; Jusran, Jusran; Syapril, Syapril
Jurnal Review Pendidikan dan Pengajaran Vol. 7 No. 4 (2024): Special Issue Vol. 7 No. 4 Tahun 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jrpp.v7i4.37380

Abstract

Penelitian ini bertujuan menganalisis pengaruh pupuk organik cair daun Gulma Siam (Chromolaena odorata) terhadap dominansi dan kemerataan serangga pada tanaman Jagung (Zea mays). Metode yang digunakan adalah deskriptif kuantitatif dengan menggunakan desain rancangan acak kelompok(RAK) yang terdiri dari 4 perlakuan (0, 40, 60, dan 80)% dengan 6 ulangan. Indeks dominansi serangga ditentukan berdasarkan indeks dominansi Simpson dan indeks kemerataan berdasarkan indeks kemerataan Eveness. Analisis pengaruh pupuk organik cair daun Gulma Siam terhadap indeks dominansi dan kemerataan serangga menggunakan analisis varians (ANAVA) dengan taraf signifikasi 5%, dilanjutkan dengan uji DMRT. Hasil penelitian menunjukan bahwa terdapat 13 spesies serangga yang ditemukan pada tanaman jagung yang diperlakukan dengan pupuk organik cair daun Gulma Siam dengan jumlah individu bervariasi pada tiap perlakuan. Indeks dominansi dan kemerataan serangga pada tanaman jagung adalah 0.49 dan 0.15 yang termasuk kedalam kategori sedang. Pemberian pupuk organik cair daun Gulma Siam (Chromolaena odorata) berpengaruh secara signifikan terhadap indeks dominansi dan indeks kemerataan serangga dengan konsentrasi pupuk organik cair daun Gulma Siam masing-masing adalah 60% dan 40%.
VALIDITAS LEMBAR KERJA PESERTA DIDIK DIGITAL BERBASIS PROJECT BASED LEARNING PADA MATERI BIOTEKNOLOGI KELAS X SMA NEGERI 1 PULUBALA Ismail, Lilis U.; Yusuf, Frida Maryati; Retnowati, Yuliana; Hasan, Ani M.; Mamu, Hartono; Akbar, Muh. Nur
Jurnal Review Pendidikan dan Pengajaran Vol. 8 No. 1 (2025): Volume 8 No. 1 Tahun 2025
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jrpp.v8i1.41094

Abstract

Penelitian ini bertujuan untuk mendeskripsikan validitas. Pengembangan Lembar Kerja Peserta Didik Digital berbasis Project Based Learning pada materi Bioteknologi ini tergolong dalam penelitian pengembangan menggunakan model ADDIE dengan uji coba terbatas pada 25 Peserta didik kelas X.1 SMA Negeri 1 Pulubala. Hasil penelitian menunjukan bahwa Validasi materi mendapatkan nilai 82% (Valid), validasi media mendaptkan nilai 86% (Sangat Valid) dan validasi praktisi mendapatkan nilai 93% (Sangat Valid).
PENGEMBANGAN MODUL DIGITAL BERBASIS PROBLEM BASED LEARNING PADA MATERI INOVASI TEKNOLOGI BIOLOGI DI SEKOLAH MENENGAH ATAS Torana, Melanie; Kumaji, Syam S.; Akbar, Muh. Nur; Retnowati, Yuliana; Mustaqimah, Nur; Husain, Ilyas
Jurnal Review Pendidikan dan Pengajaran Vol. 8 No. 1 (2025): Volume 8 No. 1 Tahun 2025
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jrpp.v8i1.41229

Abstract

Penelitian ini bertujuan untuk mengetahui validitas dan kepraktisan. Penelitian ini menggunakan jenis penelitian pengembangan atau Research and Development. Model penelitian ini mengacu pada model Plomp 2013 yang terdiri dari 3 fase yaitu: tahapan penelitian awal (Preliminary research), tahap perancangan (Prototyping phase), tahap Penilaian (Assesment Phase). dengan uji coba pada 30 peserta didik di kelas X IPA SMA Negeri 1 Paguyaman. Hasil pada penelitian menunjukkan bahwa: Uji validitas Media memperoleh nilai 83% (Sangat Valid), Berdasarkan uraian seluruh nilai persentase validasi dan uji coba membuktikan bahwa ; Pengembangan Modul Digital Berbasis Problem Based Learning Pada Materi Inovasi Teknologi Biologi Di SMA Negeri 1 Paguyaman yang telah dikembangkan dan memenuhi kriteria valid.
Isolasi, Identifikasi, dan Uji Efektivitas Metabolit Sekunder Bakteri Endofit Sembung (Blumea balsamifera) Sebagai Biopestisida Terhadap Kutu Kebul (Bemisia tabaci) Timumun, Radina I.; Agustina, Harista; Hasan, Ani M.; Uno, Wirnangsi D.; Retnowati, Yuliana
Jurnal Pendidikan, Sains Dan Teknologi Vol. 5 No. 1 (2026): Januari - Maret
Publisher : CV. ITTC INDONESIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47233/jpst.v5i1.4223

Abstract

Blumea balsamifera contains bioactive metabolites that are presumed to support the presence of endophytic bacteria capable of producing secondary metabolites with pesticidal potential, making this plant a promising source of eco-friendly biopesticides. This study aimed to isolate and identify endophytic bacteria associated with B. balsamifera and to evaluate the insecticidal activity of their secondary metabolites against Bemisia tabaci. Endophytic bacteria were isolated using the Direct Planting and Grinding methods, followed by purification, Gram staining, and metabolite production through liquid culture in Luria-Bertani (LB) medium. The isolated strain was identified as a Gram-negative, short rod-shaped bacterium producing a yellowish supernatant, which was successfully extracted using ethyl acetate to obtain an extracellular metabolite fraction. Toxicity bioassays revealed a clear dose–response pattern, with 24-hour mortality of B. tabaci increasing from 55.00% at 35% concentration to 80.00% at 75% concentration. Probit analysis yielded an LC₅₀ value of 1500.95, while LT₅₀ decreased significantly from 42.26 hours to 15.87 hours as metabolite concentration increased. These findings confirm that endophytic bacteria isolated from B. balsamifera are capable of producing secondary metabolites effective in suppressing B. tabaci populations, highlighting their strong potential for development as environmentally friendly plant-based biopesticides.
Antagonisme Trichoderma sp. terhadap Colletotrichum capsici: Uji In Vitro sebagai Strategi Pengendalian Hayati Penyakit Antraknosa pada Cabai Rawit Triska Wahyuni Dawit; Ani M. Hasan; Jusna Ahmad; Yuliana Retnowati; Febriyanti, Febriyanti
Journal of Science, Technology, and Innovation Vol 1 No 2 (2025): December: Inventa: Journal of Science, Technology, and Innovation
Publisher : CV SCRIPTA INTELEKTUAL MANDIRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.65310/dvr6m616

Abstract

Anthracnose disease is a plant disease caused by the fungus Colletotrichum capsici, the disease is one of the problems in the cultivation of cayenne pepper (Capsicum frutescens). This study aims to test the antagonistic ability of Trichoderma sp. against the fungus Colletotrichum capsici and observe the morphological changes in Colletotrichum capsici colonies exposed to Trichoderma sp in vitro on cayenne pepper plants Capsicum frutescens. The test method was carried out using the dual culture method to determine the percentage of inhibition by studying the interaction between Trichoderma sp. and Colletotrichum capsici colonies on Potato Dextrose Agar culture media. The results showed that Trichoderma sp. fungi can compete for space and resources against Colletotrichum capsici fungi macroscopically by controlling space and resources, and microscopically by producing antibiotics (antimicrobials) that can inhibit the growth of Colletotrichum capsici. The urgency of this research is the need for safe and environmentally friendly disease control efforts. One method that has been widely developed is by utilizing biological agents, such as Trichoderma sp. which is able to inhibit the growth of the pathogen Colletotrichum capsici.
Development of Biology Teaching Material Supplements Based on the Potential of Gorontalo Karst Vegetation using a Biodiversity Literacy Approach Abubakar Sidik Katili; Yuliana Retnowati; Ilyas H. Husain
Jurnal Penelitian Pendidikan IPA Vol 11 No 1 (2025): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v11i1.9640

Abstract

Vegetation is a community of plants of various species that live in a certain environmental condition and interactions occur in it. The fact of the vegetation analysis course material and has implications for students in vegetation analysis lecture activities. The development of teaching materials based on the potential of karst ecosystems can be carried out with a biodiversity literacy approach. The aims of this study to develop vegetation analysis materials supplements, by utilizing the results of vegetation analysis and their interaction with plant root microorganisms in karst ecosystems. The research mtheods used R&D method with the ADDIE model. The stages of research are analysis, design, development, implementation and evaluation. The results obtained showed that the form of supplement materials based on biodiversity literacy in the vegetation analysis course, had a validation result of 93.75% which was included in the range of 81% to 100%, in the aspect of design the supplement materials was 91.67% that indicated very good quality,with in the range 81% to 100%, the student response to the overall aspect in 94%, where this value is included in the very good category because it is in the range of 81 to 100%.
Assistance in Preparing Craft Learning Implementation Plans Based on the Use of Local Food to Prevent Anemia in Gorontalo Regency: Pendampingan Penyusunan Rencana Pelaksanaan Pembelajaran Prakarya Berbasis Pemanfaatan Pangan Lokal Cegah Anemia di Kabupaten Gorontalo Margaretha Solang; Muh. Nur Akbar; Syam S. Kumaji; Yuliana Retnowati; Vivien Novariana; Asniawati Zainuddin; Budy Santosa; Eman Rahim; Muhammad Isra
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 8 No. 1 (2024): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : DPD Jatim Perkumpulan Dosen Indonesia Semesta

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Abstract

Anemia in adolescents is one of the factors that cause stunting, and it has impacted the educational system. It is important for students to be knowledge and skills equipped necessary to overcome the anemia problem independently in order to improve the quality of their education. The various programs that have been launched by the government are still not being implemented optimally because there are still some teachers who do not have the knowledge to develop learning plans that lead to the use of local food to prevent anemia in the Gorontalo Regency. To address this issue, it is necessary to implement innovative learning methods so that students receive education and skills through the processing of local food in order to prevent anemia, which is possible through the study of craft subjects. This assistance is intended to assist in the preparation of lesson plans (RPP) based on local food processing in order to prevent anemia. This activity is directed at Prakarya teachers in 5 Senior High Schools in the Gorontalo Regency. In this case, workshops and mentoring were used as methods. Workshops and mentoring were carried out face to face which focus on developing lesson plans based on discovery learning and project-based learning. The results of this activity are skills in preparing lesson plans based on the use of local food to prevent anemia by Prakarya teachers in Gorontalo Regency. This lesson plans will then be implemented in the odd semester of the 2023/2024 academic year.
Co-Authors Abubakar Sidik Katili Abubakar Sidik Katili Agustina, Harista Ahmad, Aisyah Alfandi Kibu Angio, Melisnawati H. Ani M. Hasan Ani M. Hasan Aryati Abdul Aryati Abdul Aryati Abdul Asep S. Abdurrahmat Asniawati Zainuddin Asniwati Zainuddin Budy Santosa Budy Santoso Chairunnisah J Lamangantjo Citra Leonita Matalauni Cono, Titi Hawanda Metania Dewi Wahyuni K. Baderan Eka Zahra Solikahan Eman Rahim Eman Rahim ENDANG S. SOETARTO febriyanti febriyanti Frida Maryati Yusuf HASAN, ANI M. Herinda Mardin Husain, Ilyas Ilyas Husain Ilyas Husain Indra Domili Irsan, Mohamad Ismail, Lilis U. Jusna Ahmad Jusran Jusran LANGKAH SEMBIRING Ledy Mutmainah Y Syahril Lilan Dama Mabuia, Siti Ainun Magfirahtul Jannah Mamu, Hartono Margaretha Solang Masra Latjompoh Mohamad Ikbal Riski Danial Muh. Nur Akbar Muhammad Isra Muhlis Muhlis Mustaqimah, Nur Noer Fahnessa Dako Nona Wingti Posangi Novian Swasono Hadi Novri Youla Kandowangko Nur Afni Machmud Nur'ain Marton Angio Nurdin Nurfadhlia Djafar Nurhayati Bialangi Nurinda Umadji Pangalo, Paulus Pobela, Juliani Putri, Tarissa Eka Ramli Utina Riskanarti K. Lihaawa Risnayanti R Juramang Rulan U. Mustapa Sela Restia Tangahu Siti Humairah Eka Putri SORAYA FITRIA NASIR Sri Delviyanti Lihawa Sukarti Moeljopawiro Sukirman Rahim Syam S. Kumaji Syapril, Syapril Tadidik, Ulfaida H. Timumun, Radina I. Tjut S. Djohan Torana, Melanie Triska Wahyuni Dawit Uno, Wirnangsi D. Vivien Novariana Widya Rahmawaty Saman Wirnangsi D Uno Wirnangsi D Uno Wirnangsi D. Uno Wirnangsi D.Uno Wirnangsi Din Uno Wirnangsih D. Uno Yulianti Humokor