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All Journal Jurnal Biologi Tropis Bioscientist : Jurnal Ilmiah Biologi
Sukarso, A. A.
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences

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Diversity of Herbs and Lianas in The Suranadi Tourism Park Area, West Lombok Regency in 2024 Majdi, Mohammad Zainul; Raksun, Ahmad; Mertha, I Gde; Sukarso, A. A.
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i2.9132

Abstract

One of the conservation forests with diverse types of flora and tropical forests that are evenly distributed is Suranadi Nature Tourism Park. The types of herbs and lianas are rare plants that are rarely studied in the Suranadi Nature Tourism Park Area. This study aims to describe the species of Herba and Liana plants in the Suranadi Nature Tourism Park area of West Lombok Regency. The type of research used is quantitative research that is descriptive explorative with exploration or survey methods. The research data were analyzed quantitatively which would then be described and calculated using the Shannon-Wieener index to measure species diversity. The results of the study at the location were: there were 13 species from 11 families found in Herba plants and there were 9 species from 7 families found in Liana plants. The results of this study obtained a richness index of 2.49 for 13 types of herbs and -58.13 for 9 types of lianas found and entered the medium-low richness category. This study proves that the fewer types of plants found in an area, the lower the richness index value.
Chromosomes Characteristics of Vegetable Fern (Diplazium esculentum) in Rinjani Mountain National Park Pratiwi, Elsa; Mertha, I Gde; Sukarso, A. A.
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.7846

Abstract

Vegetable fern (Diplazium esculentum) is one type of fern that is utilised by the Indonesian people as one of the food ingredients. Chromosomes are genetic information in cells that are the basic unit of life. The purpose of this study was to determine the number of chromosomes and mitotic index of vegetable spikes (D. esculentum) at various altitudes in Mount Rinjani National Park. The type of research is quantitative research that describes a situation using numbers factually, systematically and accurately quantitative data of vegetable fern chromosomes (D. esculentum). The method used in the research is Squash method. The results showed no difference in the number of chromosomes of vegetable spikes (D. esculentum) at an altitude of 292 masl, 538 masl, 703 masl and 1417 masl. The number of chromosomes of vegetable spikes at all altitudes 2n = 82 (diploid) x = 41. The mitotic index of vegetable spikes showed results that were not significantly different at altitudes of 292 masl, 538 masl, 703 masl and 1417 masl.
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.
Students’ Knowledge Profile of Sasambo Medicinal Oil in the Phytochemistry Course Listantia, Nora; Jufri, A. Wahab; Gunawan, Erin Ryantin; Gunawan, Gunawan; Rokhmat, Joni; Sukarso, A. A.
Jurnal Biologi Tropis Vol. 25 No. 4b (2025): Special Issue
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v25i4b.10972

Abstract

Sasambo Medicinal Oil is a local wisdom–based product from West Nusa Tenggara (NTB) that utilizes medicinal plants such as lemongrass, ginger, turmeric, eucalyptus, and various other ethnopharmaceutical species. In the context of phytochemistry learning, the use of this oil serves as a relevant medium for connecting the concept of secondary metabolites with the practical application of natural-product utilization. This study aims to describe the knowledge profile of students regarding Sasambo medicinal oil as a cultural heritage product that possesses significant phytochemical potential and economic value, as well as its contribution to enhancing scientific literacy. Students’ understanding of the components, benefits, and preparation processes of this traditional medicinal oil is essential to develop within chemistry education based on local wisdom. The research employed a descriptive quantitative method using closed-ended questionnaires and interviews as instruments. The research subjects consisted of 52 students from the Chemistry Education Study Program at the University of Mataram. The findings show that 73% of students have general knowledge about Sasambo oil, yet only 38% understand its chemical composition and pharmacological mechanisms. Students’ conceptual and procedural knowledge falls within the moderate category (average score of 65.2%), while the applicative aspect remains low (54.1%). These results indicate the need to strengthen scientific literacy and integrate local wisdom into applied chemistry and phytochemistry learning, thereby improving students’ conceptual understanding and awareness of the scientific and sustainable utilization of natural resources.
Co-Authors A. Wahab Jufri ACENG RUYANI Ahmad Raksun, Ahmad Erin Ryantin Gunawan Gunawan Gunawan I Gde Mertha Joni Rokhmat Listantia, Nora Majdi, Mohammad Zainul Pratiwi, Elsa Putri, Zakyya Septiana Uliyandari, Mellyta Wardana, Rendy Wikrama