Bioscientist : Jurnal Ilmiah Biologi
ISSN / EISSN : 2338-5006 / 2654-4571
Current Publisher: LPPM IKIP Mataram (10.33394)
Total articles ≅ 65
Latest articles in this journal
Bioscientist : Jurnal Ilmiah Biologi, Volume 8, pp 284-293; doi:10.33394/bjib.v8i2.2886
Kopasanda (Chormolaena odorata) leaves are often used as traditional medicine and are proven to be used as natural antiseptics. We use this public belief as the basis for analyzing the antiseptic content in laboratory tests. The test results are then used as the basis for making the gel. The method we use is the maceration method to proceed to the phytochemical screening test. Based on the results of the analysis, it can be concluded that, it is true that Kopasanda leaves (Choromolaena odorata) contain antiseptic compounds that can heal wounds.
Bioscientist : Jurnal Ilmiah Biologi, Volume 8, pp 212-218; doi:10.33394/bjib.v8i2.2939
Averrhoa is a member of the Oxalidaceae family and has four types, namely Averrhoa carambola, Averrhoa bilimbi, Averrhoa leucopetala, Averrhoa dolichocarpa.. Among the four types of averhoa, the most commonly found growing and planted in Kediri's yards were Averrhoa carambola and Averrhoa bilimbi. Cultivation of this plant is usually done by vegetative and generative with seeds. Pollen has long been used as an indicator in plant taxonomy, because in pollen there are many secret characters. This study aims to determine characterization Averrhoa species that grow in Kediri City based on a palinological approach. The result of this research is Averrhoa pollen that grows in Kediri City has almost the same characteristics, namely very small size, spheroidal Prolate shape, trizonocolpate aperture and isopolar polarity. The similarity is so great because the environmental conditions in which these two types of plants grow are the same. The difference in the character of pollen that grows in Kediri City lies in its ornamentation. In Averrhoa carambola ornate Perforate-Foveolate and Averrhoa bilimbi with reticulate character. This difference in ornament is due to the fact that these two types of plants have different species.
Bioscientist : Jurnal Ilmiah Biologi, Volume 8, pp 276-283; doi:10.33394/bjib.v8i2.3066
One of the factors of plant fertility is influenced by the addition of compost which contains bioactivators. One of the bioactivators that can be used in the composting process traditionally is using MOL (Local Microorganisms). MOL from banana stem is an alternative material that can be used as a starter in the composting process. This study aims to isolate and identify N-fixing bacteria and phosphate solvents that work in the composting process of household organic waste using banana steam waste as MOL for bioactivators. This research is experimental. The making sample of MOL and the process of bacterial isolation were carried out in the STTL Mataram Laboratory, then identification of the type of bacteria was carried out at The Balai Laboratorium Kesehatan dan Kalibrasi. The results showed that the bacteria identified in the MOL sample were Pseudomonas sp. and Citrobacter freundii.
Bioscientist : Jurnal Ilmiah Biologi, Volume 8, pp 229-235; doi:10.33394/bjib.v8i2.3094
The method of role playing in learning is a teaching and learning process in which students themselves are mentally active, building their knowledge, which is based on the cognitive structure they have. The teacher has a more role as a facilitator and mediator of learning. This study aims to determine the effect of role playing methods on cognitive learning outcomes in terms of student learning activities. The research method used is a quasi-experimental method. The research design used a "post-test only control group design" which involved two classes, namely the experimental class and the control class. The population in this study were all students of class X MIA MA Darul Aminin NW Aikmual, Central Lombok Regency. While the research sample was 39 students of class X MIA at the MA. Student learning outcomes were measured using a test in the form of multiple choice questions, and student learning activities were obtained using a questionnaire. Based on the results of the research that has been done, it can be concluded that the role playing method has an effect on student cognitive learning outcomes, because the significance value is 0.046
Bioscientist : Jurnal Ilmiah Biologi, Volume 8, pp 411-420; doi:10.33394/bjib.v8i2.3113
This study aims to determine the validity of guided inquiry-based biotechnology practicum guidelines for high school students in West Sumbawa Regency. The development model used in this research is the 4D development model, with details of the stages, namely: 1) define; 2) design / design; 3) develop / development; and 4) disseminate / spread. This research uses a quantitative descriptive approach. The research data were collected using instruments, namely validation sheets (construct and content) for two expert validators, as well as legibility test sheets for high school students. The research sample consisted of 28 students of class XII IPA at SMAN 2 Taliwang. The data from the validation results were analyzed using the mean score analysis and validation criteria. The results showed that, the results of the validation by constructors were very valid with a mean score of 3.75 and a percentage of 93.75% with very good criteria. The results of the validation by content experts were valid with a mean score of 3.17 and a percentage of 87.51% with very good criteria. While the legibility test results showed the mean score of all aspects assessed was 68.61 and the percentage value was 71.47% with easy criteria. The conclusion of this study is that guided inquiry-based biotechnology practicum instructions for students can be applied in practicum activities on Biotechnology material for class XII IPA SMA in West Sumbawa Regency.
Bioscientist : Jurnal Ilmiah Biologi, Volume 8, pp 317-326; doi:10.33394/bjib.v8i2.3154
Citrus hystrix or Jeruk Purut is a type of Rutaceae family that is used as food and traditional medicinal ingredients. Various traditional dishes in Indonesia use Citrus hystrix as a cooking spice and are believed to give a distinctive and refreshing aroma. The use of plants as cooking spices or medicines is related to their bioactive compounds, especially in their use as medicine. The purpose of this study was to explain the relationship between the use of Citrus hystrix and its bioactivity. This study combines market surveys in several traditional markets in North Sumatra and literature studies on the results of research published online and offline about the bioactivity of Citrus hystrix. Respondents in this study were all medicinal plant traders who trade Citrus hystrix. Some of the keywords used for online searches are Citrus hystrix and bioactivity of Citrus hystrix, then they are synthesized so they can explain the purpose. Citrus hystrix has long been traded in the traditional markets of Kabanjahe, Berastagi, and Pancur Batu under the local name "Rimo Mungkur". The local people of North Sumatra, especially the Batak ethnic group, use Citrus hystrix as an ingredient for various ritual events and as a medicinal ingredient. In traditional medicine Citrus hystrix is used to treat fever, fractures, oukup (traditional sauna), malnutrition. Bioactivity of Citrus hystrix is antioxidant, anticancer, antimicrobial, hepatoprotective, and aromatherapy. The bioactivity of Citrus hystrix is thought to be related to its essential oil content, especially limonene, citronellal, and β-pinene. Citrus hystrix is a nautracetical plant that has the potential to be developed as a natural preservative for food and for aromatherapy.
Bioscientist : Jurnal Ilmiah Biologi, Volume 8, pp 327-336; doi:10.33394/bjib.v8i2.3165
This study aims to develop a student worksheet based on the empowerment of thinking through questions in environmental knowledge courses. This type of research is development research using the R & D (Research and Development) method. In this study, only two stages of the R&D method were used, namely: 1) the preliminary study stage; and 2) the product development stage. The research was conducted in the Environmental Knowledge course. The instrument used to collect data was the Student Worksheet validation sheet which consisted of three components, namely: content, language, and presentation. Based on the results of the validation, the content component validation score obtained was 3.25 with valid criteria, the language component was 3.00 with valid criteria, and the presentation component obtained a score of 3.36 with valid criteria. Thus it can be concluded that, empowerment-based Student Worksheets think through questions on environmental knowledge courses with valid criteria and can be used as learning materials.
Bioscientist : Jurnal Ilmiah Biologi, Volume 8, pp 364-370; doi:10.33394/bjib.v8i2.3269
This study aims to explore the prospective science-teachers’ services satisfaction in private educational institution in Indonesia. Intended educational institution in this study is the Institute of Teacher Training and Education (IKIP) Mataram, Province of West Nusa Tenggara, Indonesia. This study is a survey research, where data is collected using a questionnaire containing the statement items of services satisfaction on the aspects of reliability, responsiveness, assurance, empathy, and tangibility. Questionnaires were given to prospective-teachers who were actively studying and felt the services provided by the institution. Respondents involved as many as 282 prospective science-teachers, each of respondents from three study programs namely biology education, physics education, and chemistry education. The results of measurements of prospective science-teachers’ services satisfaction in IKIP Mataram on the aspects of reliability, responsiveness, assurance, empathy, and tangibility in a row with very good responses of 17.59%, good responses of 60.64%, sufficient responses of 13.76%, and less responses of 8.01%. The recommendation in this study is that private education institutions need to continue to improve services in all aspects, especially the most dominant is the tangible aspect.
Bioscientist : Jurnal Ilmiah Biologi, Volume 8, pp 180-186; doi:10.33394/bjib.v8i2.2762
The purpose of this study was to develop a handout based on the results of research on the antibacterial power of mahogany leaf and bark extract (Swietenia mahagoni). This research is a development research which refers to the ADDIE development model which consists of five stages, namely analyzing, designing, developing, implementing, and evaluating. The research object was students of the Biology Education Study Program, FSTT, Mandalika University of Education who had taken the Microbiology course. Handouts were validated by material expert validators, media experts, and a readability test to assess the practicality of handouts was carried out by students of the Biology Education Study Program, FSTT, Mandalika University of Education. The data were collected through a questionnaire and analyzed qualitatively and quantitatively. The percentage of results from the validation of experts in microbiology material was 97.61%, the validation of the instructional media experts was 97.72%, and the readability test by students was 91.79%. The results showed that handouts based on the results of research on the antibacterial power of mahogany leaf and bark extracts were very valid and suitable for use as teaching materials.
Bioscientist : Jurnal Ilmiah Biologi, Volume 8, pp 236-243; doi:10.33394/bjib.v8i2.2763
This research aims to produce teaching materials in the form of valid and practical Microbiology handouts based on the research "Antagonism of Antagonistic Fungi against Pathogenic Fungi". This type of research is development research. This development research was carried out by following the instructional design stages with the ADDIE approach, which consisted of 5 stages, namely: Analyze, Design, Develop, Implement, and Evaluate. The data on the feasibility of handout teaching materials were obtained from the results of validation by microbiology material experts and teaching materials expert. While the handout readability test was conducted by respondent students of the Undergraduate Biology Education Study Program, FKIP, University of Muhammadiyah Malang. The results showed that the percentage of eligibility of handout material by material expert validators was 96.52% with very valid criteria with little improvement. The percentage of feasibility of handouts by teaching materials expert is 100% with very valid criteria. The percentage of readability test by respondent students was 90.10% with very high readability criteria. The results of this study indicate that the handout teaching material is very feasible and practical to be used by students / lecturers in microbiology learning activities on the material "Antagonism of Antagonistic Fungi against Pathogenic Fungi in Plants".