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EFEKTIVITAS ANTIBAKTERI EKSTRAK DAUN SIRIH (Piper betle Linn) TERHADAP Staphylococcus aureus ATCC 25923 Bustanussalam, Bustanussalam; Apriasi, Devi; Suhardi, Eka; Jaenudin, Dadang
FITOFARMAKA | Jurnal Ilmiah Farmasi Vol 5, No 2 (2015): Vol 5 No 2 Desember 2015
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (213.75 KB)

ABSTRAKTanaman sirih (Piper betle L) merupakan jenis tanaman yang tumbuh merambat dengan ketinggian mencapai 5-15 m. Tanaman ini sebagai tanaman obat yang berkhasiat untuk penyembuhan terhadap penyakit kulit yang disebabkan oleh bakteri Staphylococcus aureus karena memiliki daya antiseptik yang baik. Bagian tanaman yang digunakan yaitu daunnya karena banyak mengandung senyawa turunan fenol. Penelitian ini bertujuan untuk mengetahui efek antibakteri ekstrak daun sirih (Piper betle L) dan untuk mengetahui konsentrasi ekstrak daun sirih yang memiliki efek antibakteri paling efektif terhadap bakteri Staphylococcus aureus penyebab penyakit kulit. Metode yang digunakan adalah metode eksperimen dengan rancangan percobaan Rancangan Acak Lengkap (RAL) dengan menggunakan 2 metode yaitu metode Refluks dan Maserasi dengan masing-masing konsentrasi ekstrak daun sirih (Piper betle L) yang terdiri atas satu faktor yaitu konsentrasi ekstrak daun sirih (Piper betle L) dengan taraf faktor 0%, 5%, 10%, 15%, 20% dan 25%. Variabel respon yang diamati adalah luas zona hambat bakteri Staphylococcus aureus. Hasil penelitian menunjukkan bahwa pada ekstrak daun sirih terdapat senyawa antibakteri yang efektif dalam menghambat bakteri Staphylococcus aureus. Zona hambat mulai terlihat pada konsentrasi 5%. Perlakuan dengan cara maserasi, pada konsentrasi 10% dan 20% zona hambat tidak berbeda nyata, sedangkan pada konsentrasi 15% dan konsentrasi 25% zona hambat yang dihasilkan berbeda nyata dengan semua konsentrasi yang digunakan. Perlakuan dengan cara refluks, pada konsentrasi 10% dan 25% zona hambat tidak berbeda nyata, sedangkan pada konsentrasi 15% dan konsentrasi 20% zona hambat yang dihasilkan berbeda nyata dengan semua konsentrasi yang digunakan. Dengan demikian, diperoleh konsentrasi ekstrak daun sirih yang memiliki efek antibakteri yang paling efektif yaitu pada konsentrasi 25% dengan cara maserasi, sedangkan cara refluks yaitu pada konsentrasi 20%. Kata kunci : Sirih (Piper betle L), Staphylococcus aureus ATCC 25923, antibakteri, rancangan acak lengkap (RAL)

Hubungan Temperatur, Kelembaban, dan Manajemen Pemeliharaan terhadap Efisiensi Reproduksi Sapi Perah di Kabupaten Bogor Dadang Jaenudin; Akhmad Arif Amin; Mohamad Agus Setiadi; Hadi Sumarno; Sri Rahayu
Acta VETERINARIA Indonesiana Vol. 6 No. 1 (2018): Januari 2018
Publisher : IPB University

Penelitian ini bertujuan untuk mengamati dan mengkaji hubungan suhu, kelembaban dan manajemen ternak terhadap efisiensi reproduksi sapi perah di Kabupaten Bogor. Suhu dan kelembaban udara diamati pagi, siang dan sore hari. Data suhu dan kelembaban udara dikonversi ke nilai indeks suhu kelembaban udara (THI). Pengamatan parameter efisiensi reproduksi dilakukan dengan menghitung nilai Days Open (DO), Conception Rate (CR), Service per Conception (S/C) dan First Service. Hasil penelitian menunjukkan bahwa nilai THI Acep Farm Kunak (77,21±0,71) lebih tinggi (P<0,05) dari Cifa Farm (71,27±0,50) dan Erif Farm (71,22±0,41). Days Open Acep Farm Kunak (110,76±37,34 hari) lebih panjang (P<0,05) dibandingkan dengan Cifa Farm (88.39±23,80 hari) dan Erif Farm (88,20±22,39 hari). Nilai CR Acep Farm (75,76±0,11%) dan Cifa Farm (66,13±0,10%) tidak berbeda (p>0,05) dibandingkan dengan Erif Farm (42,00±0,08%). Nilai S/C di tiga peternakan tidak menunjukkan perbedaan (p>0,05) masing-masing nilai S/C Cifa Farm (1,42±0,64), Erif Farm (1,52±0,64) dan Acep Farm Kunak (1,64±0,82). First Service Cifa Farm (76,11±13,84) dan Erif Farm (75,17±13,17) berbeda (P<0,05) dengan Acep Farm Kunak (96,42±35,49). Dapat disimpulkan bahwa suhu, kelembaban udara dan manajemen pemeliharaan dapat memengaruhi DO sapi perah di ke tiga peternakan sapi perah di ke tiga lokasi penelitian. Lebih lanjut, diindikasikan THI memengaruhi zona nyaman peternakan sapi perah, namun tidak ditemukan korelasi positif antara nilai THI dengan tingkat efisiensi reproduksi.

PROBLEM BASED LEARNING DENGAN STRATEGI MIND MAP PADA MATERI EKOSISTEM UNTUK MENINGKATKAN HASIL BELAJAR SISWA Ucun Radi Muharam; Prasetyorini .; Dadang Jaenudin
Jurnal Pendidikan dan Pengajaran Guru Sekolah Dasar (JPPGuseda) Vol 3, No 2 (2020): Jurnal Pendidikan dan Pengajaran Guru Sekolah Dasar (JPPGuseda)
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jppguseda.v3i2.2547

PROBLEM BASED LEARNING WITH A MIND MAP STRATEGY ON ECOSYSTEM MATERIALS TO IMPROVE STUDENT LEARNING OUTCOMESThis study aims to describe the improvement of student cognitive, affective and psychomotor learning outcomes in ecosystem material, teacher and student learning activities, and student responses in the learning process using the Problem Based Learning model with mind map strategies. The study was conducted at Cianjur District PGRI Pagelaran Junior High School. This study involved 29 students in the experimental class and 30 students in the control class. The research method used was quasi-experimental with only test post design design. Data collection techniques use multiple choice tests for cognitive learning outcomes, questionnaires for affective students care about the environment, and product evaluation and performance for psychomotor. The results of the study using the problem based learning model with mind map strategies can improve the cognitive learning outcomes of students with a significance value of 0,000 0,05, students' caring attitude towards the environment includes a good category with a percentage of 83%, student skills in making mind maps including medium and high with the percentage of 61% and 39% respectively, and student discussion skills included sufficient and good categories with a percentage of 33% and 67% respectively. Learning with problem based learning models with mind map strategies provides opportunities for students to find solutions to the problems given. Problem based learning with mind map strategies can improve student cognitive, affective and psychomotor learning outcomes.

EFEKTIVITAS ANTIBAKTERI EKSTRAK DAUN SIRIH (Piper betle Linn) TERHADAP Staphylococcus aureus ATCC 25923 Bustanussalam Bustanussalam; Devi Apriasi; Eka Suhardi; Dadang Jaenudin
FITOFARMAKA: Jurnal Ilmiah Farmasi Vol 5, No 2 (2015): FITOFARMAKA
Publisher : Universitas Pakuan

ABSTRAKTanaman sirih (Piper betle L) merupakan jenis tanaman yang tumbuh merambat dengan ketinggian mencapai 5-15 m. Tanaman ini sebagai tanaman obat yang berkhasiat untuk penyembuhan terhadap penyakit kulit yang disebabkan oleh bakteri Staphylococcus aureus karena memiliki daya antiseptik yang baik. Bagian tanaman yang digunakan yaitu daunnya karena banyak mengandung senyawa turunan fenol. Penelitian ini bertujuan untuk mengetahui efek antibakteri ekstrak daun sirih (Piper betle L) dan untuk mengetahui konsentrasi ekstrak daun sirih yang memiliki efek antibakteri paling efektif terhadap bakteri Staphylococcus aureus penyebab penyakit kulit. Metode yang digunakan adalah metode eksperimen dengan rancangan percobaan Rancangan Acak Lengkap (RAL) dengan menggunakan 2 metode yaitu metode Refluks dan Maserasi dengan masing-masing konsentrasi ekstrak daun sirih (Piper betle L) yang terdiri atas satu faktor yaitu konsentrasi ekstrak daun sirih (Piper betle L) dengan taraf faktor 0%, 5%, 10%, 15%, 20% dan 25%. Variabel respon yang diamati adalah luas zona hambat bakteri Staphylococcus aureus. Hasil penelitian menunjukkan bahwa pada ekstrak daun sirih terdapat senyawa antibakteri yang efektif dalam menghambat bakteri Staphylococcus aureus. Zona hambat mulai terlihat pada konsentrasi 5%. Perlakuan dengan cara maserasi, pada konsentrasi 10% dan 20% zona hambat tidak berbeda nyata, sedangkan pada konsentrasi 15% dan konsentrasi 25% zona hambat yang dihasilkan berbeda nyata dengan semua konsentrasi yang digunakan. Perlakuan dengan cara refluks, pada konsentrasi 10% dan 25% zona hambat tidak berbeda nyata, sedangkan pada konsentrasi 15% dan konsentrasi 20% zona hambat yang dihasilkan berbeda nyata dengan semua konsentrasi yang digunakan. Dengan demikian, diperoleh konsentrasi ekstrak daun sirih yang memiliki efek antibakteri yang paling efektif yaitu pada konsentrasi 25% dengan cara maserasi, sedangkan cara refluks yaitu pada konsentrasi 20%.Kata kunci : Sirih (Piper betle L), Staphylococcus aureus ATCC 25923, antibakteri, rancangan acak lengkap (RAL)

Inquiries and Problem Based Learning (Pbl) Assistant Multimedia Learning Models in Improving Students' Critical Thinking Skills Idah Paridah; Prasetyorini Prasetyorini; Dadang Jaenudin
JSEP (Journal of Science Education and Practice) Vol 5, No 2 (2021): December 2021
Publisher : Universitas Pakuan

This study aims to determine the interaction between the multimedia-assisted inquiry learning model and the multimedia-assisted Problem Based Learning (PBL) model on critical thinking skills and to determine the differences in critical thinking skills between students using inquiry learning and PBL. This study used a quasi-experimental with static group pre-posttest design. The implementation of the learning involved students of class XI IPA who were studying the reproductive system, respectively 37 students for the inquiry class and 33 students for the PBL class. The instrument used was an essay question consisting of 10 questions, and a questionnaire to collect student and teacher responses. The results showed that the inquiry learning model and PBL were able to improve students' critical thinking skills, and overall, the PBL model is better than the inquiry learning model. Students and teachers gave a positive response to the inquiry learning model and PBL.

PEMBELAJARAN BERBASIS MASALAH DENGAN MIND MAP UNTUK MENINGKATKAN PENGUASAAN KONSEP DAN KETERAMPILAN BERPIKIR KREATIF SISWA SMP PADA TEMA PENCEMARAN LINGKUNGAN Ening Yuningsih; Rita Retnowati; Dadang Jaenudin
JSEP (Journal of Science Education and Practice) Vol 2, No 2 (2018): Desember 2018
Publisher : Universitas Pakuan

Penelitian ini bertujuan meningkatkan penguasaan konsep dan keterampilan berpikir kreatif siswa SMP pada materi Pencemaran Lingkungan melalui pembelajaran berbasis masalah dengan mind map. Metode yang digunakan yaitu kuasi eksperimen dengan pretest-postest control group design. Penelitian dilaksanakan di salah satu SMP Negeri Kabupaten Cianjur, dengan subjek penelitian berjumlah 67 orang dikelas kontrol dan eksperimen. Kelas eksperimen yaitu kelas VII E diberi perlakuan pembelajaran berbasis masalah dengan mind map dan kelas kontrol yaitu kelas VII D mendapat pembelajaran berbasis masalah. Instrumen yang digunakan berupa tes pilihan ganda (PG) untuk penguasaan konsep, Essay untuk kemampuan berpikir kreatif dan angket untuk melihat respon siswa. Data dianalisis dengan uji statistik menggunakan SPSS versi 24.00 dan analisis deskriptif. Hasil penelitian menunjukan bahwa pembelajaran berbasis masalah dengan mind map mampu meningkatkan penguasaan konsep dan keterampilan berpikir kreatif. Penguasaan konsep siswa dikelas eksperimen meningkat dengan nilai N-gain 0,62 (kriteria Sedang) dan meningkatkan keterampilan berpikir kreatif dengan nilai N-gain 0,79 (kriteria tinggi). Siswa pada kelas eksperimen juga menunjukan respon dan antusias tinggi terhadap pembelajaran. Kata Kunci: Pembelajaran berbasis Masalah, Mind Map, Penguasaan Konsep dan Keterampilan Berpikir Kreatif

Project-Based Learning on Biotechnology Materials to Enhance High School Students' Creativity and Problem-Solving Skills Galuh Rizky Amalia; Surti Kurniasih; Dadang Jaenudin
JSEP (Journal of Science Education and Practice) Vol 6, No 1 (2022): June 2022
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jsep.v6i1.5704

This study aims to improve students' problem-solving abilities and creativity through project-based biotechnology learning. The research was conducted at a public high school in Gunung Putri, Bogor. This study involved students of class XI science which were divided into 2 groups, namely the experimental class and the control class. The research method used quasi-experimental with non-equivalent pretest-posttest control group design. The instruments used essays, questionnaires and observations. The results of this study are supported by the n-gain value of problem solving ability and creative thinking in the experimental class 0.73 (high) and the control class 0.53 (medium). Learning activities are very active and dynamic, students must communicate, be creative, think critically and collaborate. Student response was very enthusiastic. The conclusion of the research can be seen that project-based learning can improve problem solving and creativity of high school students.

Pelatihan Penyusunan E-Asesmen Literasi Sains Berbasis AKM Bagi Guru IPA SMP di Kabupaten Bogor Indarini Dwi Pursitasari; Anna Permanasari; Dadang Jaenudin
Jurnal Pemberdayaan Masyarakat Vol 1, No 1 (2022)
Publisher : Yayasan Keluarga Guru Mandiri

Literacy skills for science teachers are needed to be skilled in facilitating the development of students' literacy. The empowerment activity carried out is aimed at improving the ability of science teachers of junior high schools in Bogor Regency in compiling a science literacy e-assessment based on Minimum Competence Assessment (AKM). The participants are teachers who are members of MGMP (Musyawarah Guru Mata Pelajaran) in Bogor Regency. The activity is carried out in the form of Guidance Technique for 4 days followed by an independent task. Teachers' ability or understanding of assessment and scientific literacy is conducted through pretest and posttest. In the end of activity, participants provide an assessment on the implementation of technical guidance that has been organized. The results of the activity show that there is an increase in the teachers' understanding of assessment and scientific literacy with an N-gain achievement of 61.1% and the teachers give a very good assessment both in terms of organizing activities for the preparation of a science literacy e-assessment based on Minimum Competence Assessment (AKM). The conclusion from this empowerment activity is that the training of the preparation of scientific literacy e-assessments has been able to improve teachers' skills in developing a science-based assessment tool.

Project-Based Learning on Biotechnology Materials to Enhance High School Students' Creativity and Problem-Solving Skills Galuh Rizky Amalia; Surti Kurniasih; Dadang Jaenudin
JSEP (Journal of Science Education and Practice) Vol 6, No 1 (2022): June 2022
Publisher : Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/jsep.v6i1.5704

This study aims to improve students' problem-solving abilities and creativity through project-based biotechnology learning. The research was conducted at a public high school in Gunung Putri, Bogor. This study involved students of class XI science which were divided into 2 groups, namely the experimental class and the control class. The research method used quasi-experimental with non-equivalent pretest-posttest control group design. The instruments used essays, questionnaires and observations. The results of this study are supported by the n-gain value of problem solving ability and creative thinking in the experimental class 0.73 (high) and the control class 0.53 (medium). Learning activities are very active and dynamic, students must communicate, be creative, think critically and collaborate. Student response was very enthusiastic. The conclusion of the research can be seen that project-based learning can improve problem solving and creativity of high school students.

Ecoliteracy of Junior High School Students through Phenomenon Based Learning on the Interaction of Living Things with the Environment Iman Kadarisman; Indarini Dwi Pursitasari; Dadang Jaenudin
Jurnal Penelitian Pendidikan IPA Vol 9 No 11 (2023): November
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i11.5180

Ecoliteracy and Education for Sustainable Development (ESD) have received attention in achieving the Sustainable Development Goals (SDGs). Students' understanding of the environment and sustainability awareness needs to be instilled through the Phenomenon Based Learning model. This study aims to improve students' ecoliteracy through Phenomenon Based Learning on the material of the interaction of living things and the environment. The research used quasy experiment method with research design Only Pretest-Posttest Control Group Design. The research subjects were junior high school students in grade VII.Â Data collection techniques used tests, questionnaires, interviews and observations. Data analysis was done descriptively, N-gain calculation, and Mann Whitney test. The results showed that the average N-Gain of ecoliteracy for affective, psychomotor, spiritual, and cognitive aspects were 75.02%; 45.84%; 79.73%; and 73.31%, respectively. Mann Whitney test results showed significant differences in student ecoliteracy in experimental and control classes. Thus, it can be concluded that the implementation of learning using the PhenoBL model can improve student ecoliteracy with high categories for affective, spiritual, and cognitive aspects, while the increase in student ecoliteracy in the psychomotor aspect is classified as moderate.

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