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Bioscientist : Jurnal Ilmiah Biologi
Published by Universitas Pendidikan Mandalika
ISSN : 23385006     EISSN : 26544571     DOI : https://doi.org/10.33394
Core Subject : Science, Education, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences
Bioscientist : Jurnal Ilmiah Biologi (BJIB), receiving and publishing article in the form of research (scientific article) in the field of biology education and utilization of biological research in learning. Moreover, this journal bridges the gap between research and practice, providing information, ideas and opinion, in addition to critical examinations of biology research and teaching. Through the coverage of policy and curriculum developments, the latest results of research into the teaching, learning and assessment of biology are brought to the fore. Special emphasize are as follow: 1. Research on Learning Biology (Biology Learning Materials at All Education Levels). 2. Pure Research of Biology Developed or Studied to the Sources, Materials, or Instructional Media Biology (Biology Learning Materials at All Education Levels and Application in Society). 3. Curriculum of Biology Education at all Education Levels. 4. Class Action Research (CAR) and Lesson Study in Biology. 5. Other Qualitative Research of Biology Education. 6. The School Management and Biology/Science Laboratory Management. 7. Biology Learning Evaluation. 8. Teacher Professional Issues/Trends in Biology Education. 9. Another Study for the Scope of Biology Education. 10. Research on Environmental Education.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 123 Documents
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Search results for , issue "Vol. 12 No. 1 (2024): June" : 123 Documents clear
Penetapan Kadar Kuersetin pada Obat Herbal yang Mengandung Ekstrak Tempuyung (Sonchus arvensis) Menggunakan KLT Densitometri Purwani, Asih Imulda Hari; Pertiwi, Krisna Kharisma; Wahyuni, Dwi; Nurhayati, Rachma
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11260

Abstract

Quercetin are the main marker compounds in extracts of Sonchus arvensis which show nephrolithiasis activity. For quality control of herbal medicines, Densitometric Thin Layer Chromatography (TLC) method has been developed in this study using quercetin as phytochemical markers. Objective: Determination for quercetin in herbal medicines. Determination of quercetin by determining the composition of the mobile phase, the wavelength of the analysis, the saturation time, the elution distance and the volume of the spot. The parameters observed in the optimization method and stability test are area, retardation factor (Rf), peak shape and resolution (Rs). The composition of selected mobile phase which results good separation and symmetrical peak shape is chloroform: methanol: dichloromethane: acetonitrile: formic acid (6: 2: 2: 0.05: 0.05 v/v/v/v/v) with a wavelength of 335 nm, time of saturation is 30 minutes, elution distance is 8 cm, volume of spots is 10 µL and Rf 0.48. In this study, it was shown that there were no factors that had a significant effect so that the method could be applied for the determination of quercetin levels in herbal medicines.The research data showed that the range of levels on quercetin 3.26%.
Ethnobotany of Women’s Health Plants in Trimulya Village Sanggau Regency Astuti, A. Cindy; Syamswisna, Syamswisna; Fajri, Hayatul
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11263

Abstract

Women's health care is a very important thing to do. However, not all women's health care is safe because most of it uses products or ingredients that can damage the body. The solution for that problem is to use natural ingredients that come from nature as an alternative to maintain women’s health. The people of Trimulya Village, especially women, still use plants to maintain their health. This research aims to determine the plant species used for women's health and how the plant processed as in Trimulya Village. The research method used is descriptive qualitative, with data collection carried out using structured interviews, observation, and documentation. Based on the research results, 21 plant species are used to maintain women's health in Trimulya Village three of which are rarely found, namely white turmeric (Curcuma zedoaria Roxb), Chinese betel (Peperomia pellucida (L.) Kunth), and lempuyang (Zingiber zerumbet (L.) Roscoe). The most frequently used processing method is by boiling. The plants used by the community are come from their garden or the yard of the house.
Eksplorasi Mikroflora Alami Cairan Nepenthes mirabilis (Lour) Druce di Kawasan Hutan Penelitian dan Pendidikan Biologi Universitas Andalas Titami, Hania; Periadnadi, Periadnadi; Nurmiati, Nurmiati
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11277

Abstract

Indonesia is a country that is rich in flora and fauna diversity, one of the unique flora in Indonesia is Nepenthes. This bag serves to trap insects or other small animals, the Biology Education and Research Forest (HPPB) is located in the Andalas Limau Manis University campus area which is classified as lowland tropical rain forest which is the habitat of Nepenthes, in the Biology Education and Research Forest (HPPB) this type of pitcher plant, namely Nepenthes mirabilis. Nepenthes mirabilis is a plant that is able to digest insects trapped in pockets at the ends of its leaf tendrils, so it is classified as a carnivorous plant. Microorganisms play an important role in breaking down organic materials into inorganic ones available to plants. Types of bacteria and bacterial populations greatly determine the decomposition process of animals that have been trapped in the bag as a source of nutrients for Nepenthes plants. This study aims to explore the natural microflora of Nepenthes mirabilis fluids, determine the proportional presence of potential bacteria, and determine the in vitro potential of chitinolytic bacteria from Nepenthes mirabilis fluids. This study used a survey method which was analyzed descriptively. The results showed that Nepenthes mirabilis fluid contained the presence of Fermentative, Amylolytic, Proteolytic, Chitinolytic and Lipolitical bacteria. Nepenthes mirabilis liquid in open bags contained chitinolytic bacteria, the highest presence of chitinolytic bacteria was found in MBB samples (20,104 cfu/ml) and MBA samples (18,104 cfu/ml). .28), fermentative (2.33 and 2.00), amylolytic (1.42 and 1.28), proteolytic (2.00 and 2.00), lipolytic (1.75 and 1.28).
Pengaruh Penambahan Nutrient (NPK dan Pupuk Urea) terhadap Bioethanol Hasil Fermentasi Biji Alpukat (Persea americana Mill.) Putri, Zakyya Septiana; Ruyani, Aceng; Uliyandari, Mellyta; Wardana, Rendy Wikrama; Sukarso, A. A.
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11283

Abstract

Bioethanol is an energy source obtained through fermentation. In bioethanol production, Persea americana seeds are used as a fermentation medium because they contain lots of carbohydrates. This research aims to determine the effect of additional nutrients (NPK and urea fertilizer) required by Saccharomyces cerevisiae by varying the nutritional variables in the form of NPK and urea fertilizer. The process of making bioethanol goes through stages: making Persea americana seed flour, hydrolysis process using 6% HCl, then fermentation process, and distillation process. This research was carried out with the addition of Nutrients in the form of NPK and Urea Fertilizer with 5 treatments, namely: A) 100% yeast (no addition of Nutrients); B) 100% NPK (4 g); C) 100% Urea Fertilizer (4 g); D) 50% NPK and 50% Urea Fertilizer (4 g NPK and 4 g Urea Fertilizer); and E) 75% NPK and 25% Urea Fertilizer (3 g NPK and 1 g Urea Fertilizer), and varying the length of fermentation time to 13, 19, and 25 days. Success parameters are assessed through the bioethanol yield produced by each treatment. The research results showed that the highest bioethanol (29.7 ± 0.47%) was composition E (NPK 75% and Urea Fertilizer 25%) with a fermentation time of 25 days.
Identifikasi Tumbuhan Mangrove di Hutan Lindung Padu Empat-Lebak Kerawang Desa Batu Ampar Kabupaten Kubu Raya Maryam, Siti; Daningsih, Entin; Mardiyyaningsih, Asriah Nurdini
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11285

Abstract

Mangroves in Batu Ampar Village, West Kalimantan Province are under threat of damage because they are used as various commercial purposes by the local community such as logging mangrove trees for the mangrove charcoal industry. Mangroves have a vital functions for the environment, so that mangrove conservation is necessary. One of the mangrove conservation efforts is to know the types of mangrove plants in an area. The purpose of this study was to identify the types of mangrove plants and categorize into major, minor and associated mangroves found in the Padu Empat-Lebak Kerawang Protection Forest, Batu Ampar Village, West Kalimantan. Data collection used a survey method with a zig-zag cruising technique. There were 3 routes used in this research. The herbarium was made to facilitate the identification of mangrove plants. The identification results showed that there were 7 species of mangrove which included in 5 families: Rhizophoraceae, Arecaceae, Meliaceae, Pteridaceae, and Moraceae. The seven species found were divided into 3 mangrove groups, namely 4 major mangroves including Rhizophora mucronata, Rhizophora apiculata, Bruguiera gymnorrhiza, and Nypa fruticans; 2 minor mangroves including Xylocarpus granatum and Acrostichum speciosum, and 1 associated mangrove, namely Ficus retusa.
Hubungan Antara Motivasi, Sikap, dan Kecerdasan Adversitas dengan Hasil Belajar Biologi Peserta Didik Kelas XI SMA Hasniar, Hasniar; Hala, Yusminah; Syamsiah, Syamsiah
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11288

Abstract

This study aims to analyze the relationship between learning motivation, learning attitude, and adversity quotient with biology learning outcomes of eleventh grade students at SMA Negeri 1 Makassar. The research method used is ex-post facto with a correlational nature. The population of this study consists of all students of SMA Negeri 1 Makassar totaling 1212 students. The sample of the study is the eleventh grade science class determined using the Slovin formula, with a sample size of 132 students. Data collection involved instruments measuring learning motivation, learning attitude, and adversity quotient comprising 90 items of statements and documentation. The research findings revealed a correlation coefficient of 0.809, indicating a strong relationship between the variables.
Studi In-Vivo Antifertilitas Stigmasterol Daun Beluntas (Pluchea indica L.): Pengamatan Konsentrasi dan Motilitas Spermatozoa Fatah, M. Arya; Susetyarini, Eko; Waluyo, Lud; Nurrohman, Endrik
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11295

Abstract

Low public participation in contraception is one of the factors contributing high population density in Indonesia. Indonesia is known as a paradise for medicinal plants, there are many herbs that have the potential to be developed as contraceptives, one of which is the beluntas plant. This study aims to determine the effect of administering various doses of beluntas leaf stigmasterol on the concentration and motility of spermatozoa. The research was conducted at the Biomedical Laboratory, Muhammadiyah University of Malang, Campus 2 for 45 days. This type of research uses true experimental research with a RAL experimental design, consisting of four treatments and six replications. The doses for each treatment are P1 (0.25mg/gbb), P2 (0.5mg/gbb), P3 (0.75mg/gbb) and control (water). The results showed that administering the entire dose of stigmasterol had a significant effect on the concentration and motility of spermatozoa (P<0.05). Spermatozoa concentration P1 (11.83 ± 1.835), P2 (8.17 ± 1.472), P3 (6.33 ± 1.033), control (21.83 ± 3.312). Spermatozoa motility P1 (32.23 ± 25.406), P2 (19.85 ± 7.173), P3 (17.16 ± 2.801), control 975.23 ± 14.417). Stigmasterol from beluntas leaves has potential as a natural antifertility agent in men.
Kondisi Aspek Biologi Reproduksi Ikan Silais (Kryptopterus hexapterus) di Sungai Bilah Kabupaten Labuhanbatu Khairul, Khairul; Sari, Rina
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11305

Abstract

Aspects of reproductive biology are important information in efforts to monitoring fish resources. Aspects of reproductive biology of K. hexapterus to be observed include: sex ratio, Gonadal Maturity Rate, and Gonadal Maturity Index. Fish sampling was carried out in October – December 2021 using splint net fishing gear. Determination of observation stations by purposive sampling method, where based on the location of fishermen install splint nets. The results obtained the sex ratio of male and female K. hexapterus (1: 0.34).  Male of the Gonadal maturity Rate only at levels I-II while females are level I-IV. It can be concluded based on the results of the study, that there is too much difference in the ratio between male and female fish caught, so that Gonadal maturity Rate of male fish is not obtained that is ready to spawn. However, in female fish there are already those who reach Gonadal maturity Rate IV phase, this means they are ready to spawn. Male of the Gonad Maturity Index (0.12 - 0.43%) and female (0.11 - 2.98%). Conditions like these can make it difficult for female fish to find males who are also gonadally mature and equally ready to spawn.
Kajian Pemanfaatan dan Potensi Aplikasi Lanjut Tumbuhan Cemara Udang (Casuarina equisetifolia L.) bagi Indonesia: Studi Pustaka Handarini, Kejora; Yuniati, Yuyun; Ramadhani, Mirza; Kusyairi, Achmad
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11313

Abstract

The abundance of flora in Indonesia is an advantage that Indonesia has, so it needs to be preserved to support the continuity of social life. Cemara udang is a conifer tree with a straight, sturdy trunk, with hanging branches and sharp green leaves which is also found in Indonesia, which borders the Indian Ocean. This species is conserved in Indonesia and is found in coastal areas, beaches and mangrove forests. Through this literature study, exploration of the empowerment of cemara udang plants is discussed. Cemara udang plants provide protection from potential adverse climates such as strong winds and soil protection. This plant also has medical benefits such as inflammation problems, digestive issues, and sore throats, and is anti-bacterial. This plant is known to have biactive compounds such as alkaloids, glycosides, saponins, flavonoids, tannins, steroids, phenolics and triterpenoids. This study also explores the potential for sustainability of cemara udang plants in Indonesia to make them more commercially efficient, as an advanced material whose potential has recently been discovered as nanoparticles for health, and as an adsorbent to overcome the problem of aquatic environments that contain a lot of residual dye.
Studi Pustaka: Ekstraksi Pewarna Alami dari Tanaman di Indonesia Yuniati, Yuyun; Handarini, Kejora; Rahmiati, Retnani
Bioscientist : Jurnal Ilmiah Biologi Vol. 12 No. 1 (2024): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v12i1.11339

Abstract

Dyes have played an important role in human life, therefore the production of dyes has continued to increase from the past until now. The use of synthetic chemical dyes has apparently caused various health and environmental problems, this is what has triggered the return to use of natural dyes. Through advances in science and technology, research related to the extraction of natural dyes in Indonesia was carried out until 31 scientific reports were found that studied this matter in the last ten years. Literature studies with secondary data have summarized the novelty of research related to the extraction of natural dyes from plants, where currently flower objects are of great interest for observational studies. Various types of flowers have potential pigments that can be converted into natural dyes. The maceration extraction method is still the choice for extracting plant bioactive substances. Recently a study on the extraction of dyes from fruit peel waste was also carried out. It is hoped that the development of information related to the extraction of natural dyes will have more opportunities to be applied in various aspects.

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