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Indah Juwita Sari
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Biodidaktika : Jurnal Biologi dan Pembelajarannya
Published by Universitas Sultan Ageng Tirtayasa
ISSN : 1907087X     EISSN : 25274562     DOI : 10.30870/biodidaktika.v18i1.17311
Core Subject : Science, Education, Social,
Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences Other
Biodidaktika : Jurnal Biologi dan Pembelajarannya is a peer-reviewed journal that covers research and review articles in Biology and Biology Education.
Arjuna Subject : Ilmu Sosial - Pendidikan
Articles 5 Documents
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Search results for , issue "Vol 19, No 1 (2024)" : 5 Documents clear
Biodegradation Test of Rhodamine B by Mangrove Root Symbiont Bacteria Avicennia marina in Sea Panipahan, Muara Rokan, Panipahan Village, Riau Annisa, Rizka; Rasyidah, Rasyidah; Mayasari, Ulfayani
Biodidaktika : Jurnal Biologi dan Pembelajarannya Vol 19, No 1 (2024)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/biodidaktika.v19i1.23295

Abstract

Rhodamine B is a major problem that arises as a result of the development of the textile industry. Rhodamine B is known to be difficult to degrade naturally thus causing a lot of damage, both to the environment and human health such as respiratory tract infection, skin irritation, digestive tract irritation, and eye infection. This study aims to find and determine the type of mangrove root symbiont bacteria Avicennia marina from Panipahan Village that can degrade Rhodamine B. This research is divided into several stages, namely sampling, isolation, purification, characterization of colony morphology, Rhodamine B biodegradation test through the overlay method, gram staining, biochemical tests, and molecular tests to determine the type of bacteria. The results obtained 16 isolates of symbiont bacteria that were successfully isolated from the roots of the Avicennia marina mangrove in Panipahan Village. Of the 16 isolates of symbiont bacteria, only 2 isolates have the potential to degrade Rhodamine B. The results of the biochemical activity test showed positive results in the Catalase, TSIA, motility, and O/F tests on RA5 symbiont bacterial isolates, while the citrate test showed negative results. For RA16 symbiont bacterial isolates, it is known that only the O/F test shows positive results, while the catalase, TSIA, citrate, and motility tests show negative results. The results of bacterial characteristics obtained are that the RA5 symbiont bacterial isolate belongs to the Bacillus circulans type and the RA16 symbiont bacterial isolate belongs to the Bacillus insolitus type. So, it was concluded that there were 2 bacterial isolates of Avicennia marina mangrove root symbionts in Panipahan Village, Riau that were able to degrade Rhodamine B.
High School Students’ Interests, Difficulties, and Conceptual Understanding of Cell Concepts Luthfyanti, Juanita; Lutfi, Anas; Sari, Indah Juwita; Aberilla, Odessa
Biodidaktika : Jurnal Biologi dan Pembelajarannya Vol 19, No 1 (2024)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/biodidaktika.v19i1.24180

Abstract

The purpose of this study was to determine the learning interests, difficulties, and conceptual understanding of high school students on cell concepts. The study was conducted at one of the state high schools in Serang. The study cohort comprised 71 students enrolled in class XI, specializing in Mathematics and Natural Sciences, and a teacher in Biology.  The data collection methodology employed in this research involved conducting structured interviews with the biology educator and survey questionnaires among students. The stages in carrying out data analysis are data reduction, data display, and the iterative process of drawing conclusions and verification. The results of this research showed the importance of students' conceptual understanding of cell concepts, as evidenced in the data analysis of students who have a low level of conceptual understanding. The low understanding of the concept is caused by several factors, including cell concepts being too complex and abstract, dominant learning not being interactive, cell concepts being conceptual, and difficulty understanding foreign languages or Latin. Based on the results of interviews with biology teachers, several obstacles result in students' low conceptual understanding of cell concepts, including students being less interested in seeking additional explanations regarding cell concepts, students having low memory ability in studying the lesson concepts that has been presented by the teacher, and still a lack of availability of teaching aids in schools for cell concepts.
Analysis of Students' Scientific Literacy Abilities on Environmental Changes Concepts Lestari, Iing Dwi; Usman, Usman; Maulida, Siti Solihah; Fasyyaha, Zihma; Susanti, Laela Amalia; Yasir, Ghaliyah; Asyah, Ratu Qori
Biodidaktika : Jurnal Biologi dan Pembelajarannya Vol 19, No 1 (2024)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/biodidaktika.v19i1.21234

Abstract

This research aimed to describe the profile of students' scientific literacy abilities on environmental change. The sample in this research was class X students at a senior high school in Pandeglang, Indonesia. This research uses a descriptive method; data collected using scientific literacy skills tests and interviews. The research results show that students' average scientific literacy ability is 46.61%. Students' ability to explain scientific phenomena is 43%, evaluate and design scientific investigations is 56%, interpret scientific evidence and data is 37%, interest in scientific issues is 48%, support for inquiry activities is 52%, and response to natural resources and the environment by 78%. Based on the results of the interviews, that the learning process in schools still needs to develop students' scientific literacy skills.
Inventory of Types of Anura Order in Kedung Klewer Waterfall Pramudita, Novia Linggar; Khanafi, Wahibah; Ludhfiyah, Anggun; Indra, Ismu Nadhira; Fauzi, Ria Rizki; Wibisana, Oki Rahmatirta
Biodidaktika : Jurnal Biologi dan Pembelajarannya Vol 19, No 1 (2024)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/biodidaktika.v19i1.22391

Abstract

Kedung Klewer Waterfall located in Kediri, East Java, is a famous natural tourist attraction. However, research on the inventory of the Anura order there is still very limited. This study aims to identify and describe the species of the Anura order in the Kedung Klewer Waterfall Tourism Area and contribute to the preservation of the Anura order in the region. This research was conducted on January 6-8, 2022 using the Visual Encounter Survey (VES) method combined with transect lines. Based on the results of research and discussion, it can be concluded that the Anura order found 17 individuals in the Kedung Klewer Kediri waterfall area consisting of 4 families, for the Ranidae Family 2 species were found, namely Wijayarana masonii and Odorana hosii, the Dicroglossidae family found 1 species, namely Limnonectes microdiscus, the Megophrylidae family found 1 species, namely Leptobrachium hasseltii, and Family Bufonidae found 1 species, Phrynoidis asper.
Qualitative Analysis of Phytochemical Compounds in Turmeric Powder as Functional Drink Megananda, Rafaella Chandraseta; Primiani, Cicilia Novi; Anindhita, Mentari Nabila
Biodidaktika : Jurnal Biologi dan Pembelajarannya Vol 19, No 1 (2024)
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30870/biodidaktika.v19i1.18914

Abstract

Jamu is an Indonesian culture still preserved by the community as an alternative treatment. One of the natural ingredients often used in herbal medicine is turmeric, which has various phytochemical compounds that benefit the body. This study examines the content of tannins, alkaloids, and saponins in traditional (conventional) instant powdered turmeric drinks and factory-made (commercial) instant sour turmeric powder drinks. Analysis of the phytochemical compounds in both samples was carried out qualitatively with various reagents used. Qualitative analysis was conducted based on changes in color or appearance in both instances. Based on the research conducted shows that, conventional and commercial turmeric powder is suspected of not containing tannin compounds but saponins and alkaloid compounds. The color analysis results show that traditional turmeric powder has darker color characteristics than commercial turmeric powder. It means that turmeric powder has phytochemical compounds, so it has the potential to be a functional drink that is beneficial to health.

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