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Jurnal Pembelajaran dan Biologi Nukleus
Published by Universitas Labuhanbatu
ISSN : 24429481     EISSN : 26857332     DOI : https://doi.org/10.36987/jpbn
Core Subject : Science, Education, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media
Jurnal Pendidikan Biologi merupakan jurnal elektronik yang merupakan wadah penerbitan artikel penelitian original yang terkait dengan penelitian pendidikan biologi. Jurnal ini dikelola oleh Program Studi Pendidikan Biologidibawah naungan LPPM Universitas Labuhanbatu. Jurnal ini diterbitkan dua kali dalam setahun pada bulan Maret dan September. Jurnal ini menyajikan hasil penelitian dibidang Pendidikan Biologi dan sains Biologi.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 437 Documents
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Effectiveness of Rosella Flower Extract Addition (Hibiscus sabdariffa L.) on the Physicochemical Quality of Liquid Soap Yardani, Jesi; Ulimaz, Almira; Awalina, Rahmi; Linangsari, Titis
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i3.5004

Abstract

Soap is one of the daily necessities that is often used, from household scale to industrial scale. Soap serves to kill germs so that the skin surface becomes clean. Therefore, soap usually contains Triclocarban which functions as an antibacterial agent. However, this substance can cause bacterial resistance to antibiotics if used for a long period of time. Therefore, it is necessary to substitute this chemical substance which is more natural such as red Rosella plant flower extract (Hibiscus sabdariffa L.). The purpose of this study was to analyze the effectiveness of the addition of Rosella flower extract on the physicochemical quality of liquid soap. The research method is experimental laboratory. The formulations of red Rosella flower extract used were 0%, 0.5%, 1%, 1.5%, and 2%. Soap was tested for physical characteristics, namely color and aroma, while testing chemical characteristics with a pH test. Data analysis was carried out descriptively qualitative. The results showed that the addition of Rosella flower extract proved effective in changing the physical characteristics of soap, namely odor and color. The higher the percentage of red Rosella flower extract formulation added, the more red-colored the soap and the more the soap has a distinctive Rosella flower aroma. The higher the percentage of red Rosella flower extract formulation added, the pH of the soap is closer to neutral. Soap with a pH that tends to neutral pH is better for the skin because it does not damage the lipid layer of the skin surface. Based on the results of this study, it can be concluded that red Rosella flower extract (Hibiscus sabdariffa L.) is proven to effectively improve the physicochemical quality of liquid soap
Analysis of the Development Needs of Student Worksheet Based on Local Wisdom of Biotechnology Material at Senior High School, Kupang City Ernawati, Ernawati; Eriyanti, Ribut Wahyu; Rofieq, Ainur; Huda, Atok Miftakhul
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i1.5315

Abstract

This study aims to obtain an overview of the formulation of student worksheed (called as LKPD) based on local wisdom that needs to be developed in learning the biology of conventional biotechnology materials at SMA N 5 Kupang City which is adjusted to the learning achievements and objectives.  The subjects in this study were 3 teachers who taught in class X of SMAN 5 Kupang City, and 175 students were randomly drawn from all grade X students of science interest at SMA N 5 Kupang City.  Research data were collected through interviews and questionnaire dissemination. The research data were analyzed in a qualitative descriptive manner. The results of the study obtained teacher and student responses including students need LKPD based on local wisdom on biotechnology material to make it easier to understand the material, In addition, in learning, teachers provide examples of the results of biotechnology based on local wisdom in the form of pictures and videos, and are presented in the form of virtual laboratories with animations to attract more students' attention, so that students are more motivated to learn which will affect learning outcomes. The biology material for class X semester that is most difficult for students to understand is biological technology innovation material, so teachers need LKPD based on local wisdom in Biotechnology material, which can help students  introduce local wisdom in their respective regions so that students can easily apply it in everyday life, and to support learning, which has a positive impact on improving student learning outcomes
Ethnobotany of Rubiaceae Family Plants Used As Traditional Medicine in Tanjung Gusta Village Sunggal District, Deli Serdang Regency Siregar, Rivahni; Idris, M.; Rahmadina, Rahmadina
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i1.5463

Abstract

Medicinal plants are all types of plants that are known to contain compounds that are useful and efficacious to prevent, alleviate or cure a disease. Rubiaceae is one of the flowering plant tribes. This study aims to determine the type of plant, how to use, and the value of ICS (Index Culture Significance) on plants of the Rubiaceae family in Tanjung Gusta Village, Sunggal District, Deli Serdang Regency, which was conducted in May - July 2022. The research method used a descriptive survey conducted by means of field surveys and interviews. The results showed that the types of plants of the Rubiaceae family used as traditional medicine in Tanjung Gusta village are noni (Morinda citrifolia L.), asoka flower (Ixora coccinea), gambier (Uncaria acida), quinine (Cinchona pubeschens), cat's claw (Uncaria tomentosa). How to use noni by squeezing the juice, for asoka flowers by brewing, for gambier by mashing, for quinine which is used is the skin, and for cat's claw by boiling. The highest ICS value is obtained from the noni plant (Morinda citrifolia L) with a value of 24 and the lowest ICS value is obtained from the Asoka plant (Ixora coccinea) and also the quinine plant (Cinchona pubeschens) which both have the lowest ICS value with a value of 12.
The Relationship Between Morphometric Characteristics and The Weight of Tubuca forcipata (Subfamily: Gelasiminae) in The Mangrove Nature Reserve of Eastern Coast Resort Mendahara, Jambi Province Auliaputri, Tazkiah; Ihsan, Mahya; Wulandari, Tia
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i3.4649

Abstract

The objective of this study is to ascertain the pathogenic and antagonistic fungi that induce disease in avocado plants (Persea americana Mill), identify the antagonistic fungi with the greatest antagonism potential among a variety of antagonistic fungi, and elucidate the mechanism by which antagonistic fungi inhibit the growth of pathogenic fungi. From January to May 2023, this study was conducted in vitro at the Microbiology Laboratory, State University of Malang, employing a completely randomized design (CRD) comprising six replications and four interventions. The identification of mold was accomplished through macroscopically and microscopically descriptive analysis, followed by a comparison with the mold identification key book. The antagonism process was executed utilizing the dual culture method on the PDA medium, and the electron microscope (SEM) was employed to witness the antagonism mechanism. The research findings revealed that T. harzianum spp. and T. viride were identified as antagonist fungi, whereas C. aotearoa and C. gloeospoiroides were identified as pathogenic fungi. The antagonistic fungus T. viride exhibited the greatest degree of antagonism, impeding the growth of C. gloeospoiroides by 77.8%. Observed antagonism occurs when the hyphae of the antagonistic mold ensnare, entangle, and pierce those of the pathogenic mold, causing harm to the region surrounding the pathogenic mold's hyphae and subsequently impeding its growth
Response of Liquid Organic Fertilizer Application from Sword Fern Weeds and Goat Manure on Growth and Production of Green Beans ( Vigna radiata L ) Armaniar, Armaniar; Sulardi, Sulardi; Wibowo, Fachrina; Manik, Mika Silviana
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i3.5089

Abstract

The aim of the study was to determine the response of the application of liquid organic fertilizer for weeds of sword ferns and goat manure to the growth and production of green beans (Vigna radiata L). The research method used a factorial Randomized Block Design (RAK) consisting of 2 factors with 16 treatment combinations and 2 replications. The fist factor is treatment of Liquid Organic Fertilizer for sword ferns (M) consisting of 4 levels, namely M0 = 0 cc/L water/plot, M1 = 100 cc/L water/plot M2 = 200 cc/L water / plot, and M3 = 300 cc/ L of water/ plot. The second factor is goat manure ferilizer (S) consisting of 4 levels, namely S0 = 0 kg/plot, S1 = 2 kg/plot, S2 = 4 kg/plot, and S3 = 6 kg/plot. Parameters observed were plant height, number of productive branches, flowering age, plot production, weight of 100 seeds and age of harvest. The results of the study of Liquid Organic Fertilizer treatment of sword fern weeds had an effect on the parameters of plant height, number of productive branches, production per plot, and weight of 100 seeds, but did not affect the parameters of flowering age. The treatment of goat manure had an effect on plant height, number of productive branches, production per plot and weight of 100 seeds, but did not affect the parameters of flowering age. The interaction between the application of Liquid Organic Fertilizer for sword ferns and goat manure did not affect all parameters observed
Medicinal Plant Inventory in Pasie Jambu Village, Kaway XVI Subdistrict, West Aceh Regency Syam, Nasrianti; Fadillah, Mardi; Rahma, Cukri
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i1.5229

Abstract

Indonesia has one of the greatest quantities of biodiversity in the world, which is utilized by industries such as medicines as a source of raw materials. As is the case with the inhabitants of Pasie Jambu Village, Kaway XVI Subdistrict, West Aceh Regency, medicinal plants contain substances that can be used to treat diseases of the human body or organs. The research aims to determine which plant parts are utilized by village communities, as well as the manner in which those parts are processed. Precisely on purpose, the snowball method was implemented. The findings derived from the interviews indicated that the inhabitants of Pasie Jambu Village utilized a total of 34 different plants. At 62%, the leaves are the most widely utilized part of the plant; at 3%, the roots, skin, and tubers are the least utilized. These plants are subjected to various processing methods, including boiling, pounding, smearing, and wiping. Among these, pounding is frequently employed at a rate of 52%, while chewing accounts for at least 3%
Identification of Commercial Fish Caught by Fishermen in the Lower Barumun River as Practicum Support Vertebrate Zoology Course Malau, Nurul Hidayah; Khairul, Khairul; Siregar, Zunaidy Abdullah
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i1.5456

Abstract

Recognizing fish through morphological traits is an important aspect in developing taxonomic skills. It is evident that current students lack the ability to classify fish by species and group. Equipping students with this skill is essential as it serves as a valuable soft skill for future educators. The main objective of this study was to determine the commercial fish species in the downstream area of Barumun River. This study used an exploratory approach, which aims to obtain information on an unknown problem, using identification techniques involving observation of morphological traits and references from fish identification sources such as fish identification books and the Fishbase website. Fish taxonomy in this study relied on data sourced from the International Union for Conservation of Nature (IUCN) website. The results showed that there are 18 species of commercial fish living in the Barumun River, all of which belong to the category of true bony fish
Inhibition Test of Ethanol from Extract Mangosteen Leaves (Garcinia mangostana L.) as an Acne Antibacterial Ginting, Junius Gian; Br. Singarimbun, Nurbaiti; Daeli, Mestika Clemesiya Yulianti; Simanjuntak, Helen Anjelina; Purba, Hermawan; Br. Barus, Lydia; Zega, Defcato Firmawati
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i3.5066

Abstract

A prevalent global infection that manifests frequently in Indonesia. An example of an infectious disease that is commonly encountered during adolescence is acne (Acne vulgaris). Antibiotics can be used to treat acne; however, their misuse can lead to the development of resistance; therefore, we are searching for inexpensive, readily available alternatives that are also secure. Mangosteen leaves (Garcinia mangostana L.) are one alternative to synthetic ingredients when it comes to the treatment of acne. Mangosteen leaves comprise xanthone derivative compounds that exhibit significant biological activity, including antioxidant, antibacterial, and antimicrobial properties. Therefore, this this study aimed to ascertain the inhibitory power of an ethanol extract derived from mangosteen leaves in order to determine its antibacterial activity against Staphylococcus epidermidis bacteria. Additionally, the compound content of the ethanol extract of mangosteen leaves was determined. The inhibition test was conducted by utilizing the paper disc technique, while the extraction method employed the maceration method. As indicated by the phytochemical screening test results, simplicia and ethanol extract of mangosteen leaves were found to contain steroids/triterpenoids, alkaloids, flavonoids, saponins, and tannins. The inhibition test outcomes against Staphylococcus epidermidis bacteria revealed the following: a diameter of 3.3 mm for bacteria at a concentration of 20%, 9.4 mm for bacteria at 40%, 10.4 mm for bacteria at 60%, 12.9 mm for bacteria at 80%, and 13.2 mm for bacteria at 100%
Analysis of Ecological Role and Biotechnology Potential of Marine Yeast Rhodotorula sp. in Mangrove Forest of Pari Island, Jakarta Hutari, Andri; Anugrah, Devi; Yarza, Husnin Nahry; Faruq, Hilman; Ar Rasyid, Muhammad Luqman
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 10, No 1: Jurnal Pembelajaran Dan Biologi Nukleus March 2024
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v10i1.5406

Abstract

Mangrove forests have a very diverse microbial population. Among these microbes, some have the ability to convert mangrove forest organic waste into useful nutrients for the sustainability of the mangrove ecosystem. One of the species that has this ability is the marine yeast Rhodotorula sp. Apart from this ecological role, the yeast Rhodotorula sp. reported to have a lot of biotechnology potential, including as a producer of lipid omega-3, carotenoids, anti-bacterial, plant growth promoter, anti-cancer, biosurfactant, and a very potential workhorse for biotechnology applications. As a country that has the largest mangrove forest in the world, Indonesia has not reported much and has not intensified the use of marine yeast Rhodotorula sp. from Indonesian mangrove forests as a bioresource for high-value strategic products. This study aims to isolate the marine yeast Rhodotorula sp. from the mangrove forest of Pari island, Jakarta and reviewing the ecological role and biotechnological potential of these species. Marine yeast Rhodotorula sp. obtained will be cultivated and exploited its biotechnology potential in the future
The Nutritional Content Found in Rhizophora Mangrove Fruits in Sondaken Village, Tatapaan Subdistrict, South Minahasa Mongdong, Priskila Indah Theresya; Mokosuli, Yermia S.; Ogi, Nova L.I.M
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 9, No 3: Jurnal Pembelajaran Dan Biologi Nukleus November 2023
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v9i3.4468

Abstract

Mangroves are fertile plants that dominate the coastal areas. The fruit of the Rhizophora mangrove can be used as food and beverage ingredients, containing numerous nutrients for the human body. The mangrove fruit contains carbohydrates, water, protein, fat, as well as secondary metabolites such as flavonoids, triterpenoids, tannins, and saponins. The aim of this research is to determine the nutritional content of the Rhizophora apiculata, Rhizophora mucronata, and Rhizophora stylosa mangrove fruits in Sondaken Village, Tatapaan Subdistrict, South Minahasa. This study employs a descriptive research method, where laboratory experiments were conducted using the SNI 01-2891-1992 method at the Baristand Manado laboratory. The nutritional analysis results for Rhizophora apiculata showed a water content of 62.17%, ash content of 1.09%, protein content of 0.59%, fat content of 0.79%, crude fiber content of 5.45%, and carbohydrate content of 35.36%. For Rhizophora mucronata, the analysis revealed a water content of 65.54%, ash content of 3.07%, protein content of 1.27%, fat content of 0.74%, crude fiber content of 7.52%, and carbohydrate content of 29.38%. Lastly, Rhizophora stylosa had a water content of 64.77%, ash content of 3.547%, protein content of 1.30%, fat content of 1.63%, crude fiber content of 7.14%, and carbohydrate content of 28.76%. These results indicate that mangrove fruits have numerous benefits and contain valuable nutrients and good nutritional value for the body. By preserving the mangrove ecosystem and utilizing the nutrients found in the fruits and leaves, there is an opportunity to explore their potential as alternative natural remedies

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