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Pengembangan Multimedia Interaktif Berbasis Inkuiri untuk Praktikum Virtual pada Materi Bioteknologi di SMA Suryanda, Ade; kurniati, Tri Handayani; Damayanti, Shanti
PSEJ (Pancasakti Science Education Journal) Vol. 5 No. 1 (2020)
Publisher : Program Studi Pendidikan IPA, FKIP Universitas Pancasakti (UPS) Tegal

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (213.496 KB) | DOI: 10.24905/psej.v5i1.18

Abstract

Biotechnology is one of the subject matter that is difficult for students to understand. This difficulty is caused by biotechnology to study many complicated and abstract processes for students, one of which is about genetic engineering. Appropriate learning methods such as practicum are needed so that learning is more effective. There are limitations in carrying out genetic engineering practicum activities at the high school level, so we need a solution to overcome these limitations. The use of interactive multimedia based on inquiry is expected to present material in the form of practicum virtually so that the concept of genetic engineering becomes easier to understand. The purpose of this study is to develop interactive multimedia based on inquiry for virtual practicum on biotechnology materials in high school. Inquiry-based interactive multimedia is media that contains two or more elements of the media that are designed systematically, interestingly, and packaged interactively to stimulate students to think scientifically and skillfully find answers that begin with curiosity. The method used is a research and development method. This study uses an instrument in the form of a questionnaire analysis of needs and interviews, as well as a feasibility test questionnaire on experts, teachers, and students. The results showed that an interactive multimedia base on inquiry product had been successfully developed with an average percentage of all product feasibility tests of 83.1%, meaning that the product was included in the criteria very well and was suitable for use as an alternative media in learning biology.
Preparation of Liquid Soap Utilising Used Cooking Oil with Aloe Vera as an Antibacterial Agent Sukro Muhab; Zahra, Shyla Noureen; Revita Nurul Rafah; Vinka Juniaty Lestari; Nurhalizah; Fabian Glorious Kenaya; Abdul Asywalul Fazri; Tri Handayani Kurniati
Chemistry and Materials Vol. 3 No. 1 (2024)
Publisher : Pusat Inovasi Sains

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56425/cma.v3i1.71

Abstract

Waste cooking oil has been repurposed in the preparation of liquid hand soap, enriched with Aloe vera extract as an antibacterial agent. To ensure the safety and efficacy of the product in bacterial inhibition, comprehensive testing of physical quality and antibacterial activity has been undertaken on the produced liquid soap. The test results affirm that the soap product complies with the Indonesian National Standard for free alkali content, acidity level (pH), foam height, foam stability, and water content. Notably, the soap exhibits a free alkali content of 0.01873%, a pH of 10, a foam height of 65 mm, and a foam stability value of 84.61%. The water content in the soap is measured at 40%. These results collectively position the soap within the criteria for high-quality soap. In the antibacterial effectiveness test against Staphylococcus aureus and Escherichia coli bacteria, the addition of Aloe vera has markedly expanded the inhibitory zone, demonstrating a significant enhancement in antibacterial activity. In light of the above, this study aims to address environmental pollution and health risks associated with improper disposal of waste cooking oil. Moreover, the addition of antibacterial Aloe vera presents an economically valuable solution by repurposing waste cooking oil into a useful product.
PENERAPAN BIOTEKNOLOGI MIKROBA DAN PERANANNYA DALAM KEHIDUPAN DI LINGKUNGAN SEKOLAH SMA KABUPATEN BEKASI Agus Utami, Annisa Wulan; Kurniati, Tri Handayani; Heryanti, Erna
Prosiding Seminar Nasional Pengabdian Kepada Masyarakat Vol. 4 (2023): PROSIDING SEMINAR NASIONAL PENGABDIAN KEPADA MASYARAKAT - SNPPM2023
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Negeri Jakarta

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

Abstract

Abstract Community empowerment in the Bekasi regency area is needed, one of which is through science and technology skills to face the progress of the 21st century. The rapid development of science and technology makes Biotechnology one of the fields of science that must be mastered by the Indonesian nation, including high school students. This is because, in addition to being directly related to everyday life, it can also be related to aspects of "life skills". To provide good mastery and meaningfulness of biotechnology learning, it is expected that students are able to carry out biotechnology learning correctly and in accordance with good understanding. Based on these problems, this service activity provides counseling on Biotechnology in life in the Bekasi Regency High School environment. The output target to be achieved in this service activity is that students can apply microbial biotechnology and its role in life in the Bekasi Regency High School environment. The output target to be achieved in this service activity is that students can apply microbial biotechnology and its role in life in the Bekasi Regency High School environment. This service activity is carried out by providing training in the form of theory and practice of making Nata de Pina derived from pineapple skin waste. With this training method, students are directly involved in the process of making biotechnology products and make the experience worthwhile. Students are trained to have skills in making biotechnology-based products so that later they can utilize the potential of natural resources in Bekasi as a faculty target area in a sustainable manner and can improve community welfare Abstrak Pemberdayaan masyarakat di wilayah kabupaten Bekasi sangat diperlukan salah satunya melalui keterampilan IPTEKS untuk menghadapi kemajuan abad 21. Pesatnya perkembangan ilmu dan teknologi menjadikan Bioteknologi salah satu bidang ilmu yang harus dikuasai bangsa Indonesia, termasuk para siswa SMA. Hal tersebut dikarenakan, selain banyak terkait langsung dengan kehidupan sehari-hari, juga dapat dikaitkan dengan aspek ”life skill”. Untuk memberikan penguasaan dan kebermaknaan yang baik terhadap pembelajaran bioteknologi, diharapkan kepada siswa mampu melakukan pembelajaran bioteknologi yang benar dan sesuai dengan pemahaman yang baik. Berdasarkan permasalahan tersebut pada kegiatan pengabdian ini memberikan penyuluhan mengenai Bioteknologi dalam kehidupan di lingkungan sekolah SMA Kabupaten Bekasi. Target luaran yang akan dicapai dalam kegiatan pengabdian ini yakni siswa dapat menerapkan bioteknologi mikroba dan peranannya dalam kehidupan di lingkungan sekolah SMA Kabupaten Bekasi. Kegiatan pengabdian ini dilakukan dengan memberikan pelatihan berupa teori dan praktik pembuatan Nata de Pina yang berasal dari limbah kulit nanas. Dengan metode pelatihan ini, siswa terlibat langsung dalam proses pembuatan produk bioteknologi dan menjadikan pengalaman yang berharga. Siswa dilatih untuk memiliki keterampilan dalam membuat produk berbasis bioteknologi sehingga nantinya bisa memanfaatkan potensi sumber daya alam di Bekasi sebagai wilayah binaan fakultas secara berkelanjutan serta dapat meningkatkan kesejahteraan masyarakat.
ISOLASI DAN KARAKTERISASI BAKTERI PENGHASIL SENYAWA ANTIBAKTERI YANG BERASOSIASI DENGAN KARANG BATU DARI PERAIRAN BITUNG DAN SPONS DARI SELAT MAKASSAR SUNNY, FRANSISCA; KURNIATI, TRI HANDAYANI; HATMANTI, ARIANI
Bioma Vol. 11 No. 1 (2015): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (369.545 KB) | DOI: 10.21009/Bioma11(1).5

Abstract

ABSTRACT Recently the needs of antibacterial compounds is increasing. This is due to the bacterial resistence to common antibacterial compounds. coral and sponge-ssociated bacteria are potential producer of antibacterial compounds. This research was aim to obtain coral and sponge-associated bacteria that could produce antibacterial compound. coral associated-bacteria was isolated from Bitung and was isolated in Marine Agar by pour plate method. The antibacterial compounds were obtained by extraction using ethyl acetate and acetone. The antibacterial assay was performed by agar diffusion method using paper discs and was performed by testing with Staphylococcus aureus, Bacillus subtilis, Vibrio cholerae biotipe El Tor, and Escherichia coli. Total 37 isolate was isolated from corals and 25 isolate from sponge obtained from Selat Makassar. Based on the assay, only bacteria from sponge that showed antibacterial activity. Two sponge-associated bacteria, S.5-8 and S.2-1 NRBC were found to inhibit S. aureus. From those isolates, isolate S.5-8 produced bigger clear zone (2,6 mm) than S.2-1 NRBC (1,5mm). S.5-8 could hydrolize gelatine whereas S.2-1 NRBC showed positive result on oxidase test and was able to fement xilose and arabinose to produce acid. Key words: antibacterial activity, association, characterization, coral, isolation, sponge
ISOLASI DAN SELEKSI KHAMIR AMILOLITIK ASAL BUAH NANGKA (Artocarpus heterophyllus Lam.) Wulandari, Tria Putri; Sukmawati, Dalia; Kurniati, Tri Handayani
Bioma Vol. 13 No. 1 (2017): Bioma
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (481.329 KB) | DOI: 10.21009/Bioma13(1).5

Abstract

The aim of this research is to find the isolates of yeast that have the ability to produce enzyme amylase. The strains that can produce the amylase enzyme are characterized by a clear zone around colonies after addition of iodine solution in medium containing 1% starch soluble. Activity of amylase enzyme can be determined by measuring using spectrophotometer at λ 540 nm. The isolation result obtained 75 representative yeast isolates with colony color white butyrous 16%, white mucoid 29.3%, yellowish white 18.7%, cream 20%, peach mucoid 9.3%, and orange mucoid 6,7%. Screening results showed that 8 isolates were able to produce an amylase enzyme with code isolates K33, K34, K36, K37, K48, K107, and K128. A total of two potential yeast isolates in yielding amylase with K34 and K39 isolate codes had amylolytic index 2.89 and 2.27. The highest enzyme activity was produced by K48 (0.88 U/mL).
The Application of Inquiry-Based Interactive Multimedia to minimize Student Misconception on Biotechnology Sucject Ferliyati, Laela; Kurniati, Tri Handayani; Suryanda, Ade
Biosfer: Jurnal Pendidikan Biologi Vol. 7 No. 1 (2014): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (94.218 KB) | DOI: 10.21009/biosferjpb.7-1.3

Abstract

Biotechnology includes topic about gene and nuclear cloning is a very challenging subject to study at high school. Without proper Media aid, misconception will more likely to occur among students. The use of Inquiry-based Interactive Multimedia was expected to reduce the misconception about cloning process since it is visualized more clearly. This study was aimed to measure slope misconception of student and to analyze the application of Inquiry-based Interactive Multimedia to minimize student misconception on Biotechnology subject. The research was conducted at MAN 8 Jakarta on May 2012 using a quasi experimental method and pretest-posttest control group design. A total of 40 science students were taken equally from IPA 1 and IPA 2 classes at grade 10 to become experimental and control groups. They were selected by simple random sampling. A test of multiple choice questions with five alternative answers was used as the study instrument. To detect for any misconception, the test result was measured by Certainty of Response Index (CRI). Using this technique, there were 8 % misconception found on the pre-test and 7% on the post-test. As the conclusion, the use of Inquiry-based Interactive Multimedia was effective to minimize student misconception on Biotechnology subject.
Improving student’s biological literacy skills using ARVi learning media Indriani, Risda Putri; Kurniati, Tri Handayani; Ristanto, Rizhal Hendi
Biosfer: Jurnal Pendidikan Biologi Vol. 17 No. 1 (2024): Biosfer: Jurnal Pendidikan Biologi
Publisher : Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/biosferjpb.43976

Abstract

Biological literacy is crucial for students to consider solutions to problems after analyzing them from various perspectives. The purpose of this research is to enhance biological literacy by using ARVi (Augmented Reality Virus) learning media. The research type is a quasi-experiment using a control group pretest-posttest design. The research instrument is a multiple-choice test validated by experts and empirical validation. The expert validation result shows an average score of 3.8, which can be interpreted as the test instrument being valid and suitable for use as a biological literacy measurement tool. The empirical validation result indicates that 3 questions are invalid, while 17 questions are valid as a biological literacy measurement tool. The reliability test result shows that the biological literacy test instrument has a reliability coefficient of 0.835, which can be interpreted as 70% confidence that the instrument can be trusted. The data analysis result shows that the data is normally distributed and not homogeneous. The independent t-test result is a t-statistic of 3.16 with a t-table of 1.98 at an α=0.05. This indicates that there is an increase in results between the control group to experimental group. The paired t-test result is a t-statistic of 15.7 with a t-table of 0.68 at an α=0.05. This indicates that there is an increase in posttest results compared to pretest results. This indicates that the ARVi media can enhance all aspects of biological literacy. The highest increase in biological literacy occurs in the nominal (82%), multidimensional (64%), structural (52%), and functional (32%).
PENGOLAHAN SAMPAH ORGANIK DALAM UPAYA MENGURANGI PENCEMARAN LINGKUNGAN DI DESA BULAK INDRAMAYU Ratna Komala; Tri Handayani Kurniati; Mohamad Isnin Noer; Diana Vivanti Sigit; Sri Rahayu; Restu Gymnastiar Pasa; Nurul Assyfa Wardana
Prosiding Seminar Nasional Pengabdian Kepada Masyarakat Vol. 6 No. 1 (2025): PROSIDING SEMINAR NASIONAL PENGABDIAN KEPADA MASYARAKAT - SNPPM2025
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Negeri Jakarta

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

Abstract

Limbah rumah tangga merupakan kontributor utama terhadap pencemaran lingkungan hidup, jika tidak dikelola dengan baik keberadaan limbah  akan berdampak negatif untuk lingkungan dan kesehatan.  Salah satu upaya mengurangi masalah tersebut adalah mengolah limbah organik menjadi suatu produk yang bernilai ekonomis dan ekologis. Tujuan kegiatan ini  untuk meningkatkan pengetahuan masyarakat tentang cara pengolahan limbah organik melalui produksi bersih dan khususnya dalam membuat kompos organik dari limbah rumah tangga. Kegiatan pengabdian masyarakat dilaksanakan di  Desa Bulak, Kecamatan Ajibarang, Indramayu. pada  tanggal 31 Juli 2025, pukul 08.00–12.00Metode kegiatan adalah  pelatihan  dimulai dengan pemaparan materi  melalui  presentasi dan tayangan video, diskusi, demonstrasi dan praktek langsung pembuatan pupuk kompos secara berkelompok.  Sebelum materi diberikan, peserta diberikan pre-test dan diakhir kegiatan diberikan  post-test untuk mengetahui peningkatan pengetahuan dan pemahaman peserta tentangt materi pelatihan. Hasil dari kegiatan menunjukkan bahwa secara keseluruhan, kegiatan berjalan dengan sukses dan lancar, pengetahuan peserta meningkat antara 40% hingga 80%, dan mampu meningkatkan minat peserta dalam menjaga lingkungan serta keterampilan pembuatan pupuk kompos menggunakan limbah organik rumah tangga.     Abstract  Household waste is a major contributor to environmental pollution, if not managed properly the existence of waste will have a negative impact on the environment and health.  One of the efforts to reduce this problem is to process organic waste into a product with economic and ecological value. The purpose of this activity is to increase public knowledge about how to process organic waste through clean production and especially in making organic compost from household waste. Community service activities were carried out in Bulak Village, Ajibarang District, Indramayu. on July 31, 2025, at 08.00–12.00 The method of the activity is training starting with the presentation of material through presentations and video shows, discussions, demonstrations and direct practice of making compost fertilizer in groups.  Before the material is given, participants are given a pre-test and at the end of the activity are given a post-test to find out the increase in knowledge and understanding of participants about the training material. The results of the activity showed that overall, the activities ran successfully and smoothly, the participants' knowledge increased between 40% to 80%, and was able to increase the participants' interest in protecting the environment as well as the skills of making compost using household organic waste.