cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Ahmad Shafwan S. Pulungan
Contact Email
pulungan.shafwan@gmail.com
Phone
+6281370329288
Journal Mail Official
biosains@unimed.ac.id
Editorial Address
Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Medan Jl. Willem Iskandar Psr V Medan Estate, Sumatera Utara
Location
Kota medan,
Sumatera utara
INDONESIA
JBIO: jurnal biosains (the journal of biosciences)
Published by Universitas Negeri Medan
ISSN : 24431230     EISSN : 24606804     DOI : https://doi.org/10.24114/jbio.v6i1
Core Subject : Health, Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology Medicine & Pharmacology
Jurnal Biosains (JBIO) features works of exceptional significance, originality, and relevance in all areas of biological science, from molecules to ecosystems, (ie genetic, microbiology, ecology, biosystematic, biostatistic) including works at the interface of other disciplines, such as chemistry, medicine,physic and mathematics. We also welcome data-driven meta-research articles that evaluate and aim to improve the standards of research in the life sciences and beyond. Our audience is the international scientific community as well as educators, policy makers, patient advocacy groups, and interested members of the public around the world.
Arjuna Subject : Biokimia, Genetika dan Biologi Molekuler - Biokimia, Genetika dan Biologi Molekuler (Lain-Lain)
Articles 269 Documents
 19   20   21   22   23 
ETHNOBOTANICAL STUDY OF JAVA ACID PLANT (Tamarindus indica) IN PAGATAN BESAR VILLAGE, TANAH LAUT REGENCY Shafa' Muthi'ah Muthi'ah; Riya Irianti Irianti; Amalia Rezeki Rezeki
JBIO: jurnal biosains (the journal of biosciences) Vol 9, No 1 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v9i1.42709

Abstract

Ethnobotany is a branch of biology that studies the use of plants by an ethnic group in a certain area for life needs such as food, medicine, dyes, building materials, ritual ceremonies, myths, and so on. This study aims to describe the Ethnobotany of Java Acid plant (Tamarindus indica) in Pagatan Besar Village, Tanah Laut Regency. This research methods using qualitative descritives. The results of the study show an Ethnobotanical study of the Java Acid plant (Tamarindus indica) with a tree habit where the leaves are believed to be able to treat smallpox wounds and the fruit is used as a medicine for coughs and bruises (pharmacology). The Java Acid plant (Tamarindus indica) is used as a pisit at civil ceremony events (weddings) and as a condition for giving to midwives who assist in childbirth (socioanthropology). Java Acid plant (Tamarindus indica) is useful as greenery and shade (ecology). This plant is called Asam Kamal by the local community because it comes from the Banjar language, from the word Java Acid because it tastes sour and kamal which means lump or lump (linguistic) which is used as a mixture when cooking, a mixture of pickles, sour candies, and charcoal (economy).
THE EFFECT OF ZEOLITE ADMINISTRATION IN THE CONSORTIUM OF HEAVY METAL REDUCING BACTERIA Pb ON LIQUID WASTE OF TEXTILE INDUSTRY Ni'matul Murtafi'ah; Suci Rizki Nurul Aeni; Erika Setyowati
JBIO: jurnal biosains (the journal of biosciences) Vol 9, No 1 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v9i1.36353

Abstract

Textile industry wastewater treatment must be managed properly so as not to cause environmental pollution that has an impact on human health. Industrial wastewater treatment by utilizing microbial activity with the addition of zeolite with varying concentrations measured using UV-Vis Spectrophotometry. This study aims to find out the effect of variations in zeolite concentration on bacterial consortiums in reducing lead heavy metals (Pb) and find out the characteristics of bacteria reducing heavy metals Pb after added zeolite. The results of the study using UV-Vis Spectrophotometry showed that the concentration of zeolite 3% was able to reduce heavy metals Pb on the 14th day with consecutive levels of 0.473 with an initial lead content of 2,460 ppm. The most significant decrease occurred in the addition of a zeolite concentration of 3%. This is shown in its effectiveness value of 86.772%. From this study, it can be concluded that the administration of a concentration of 3% in a consortium of bacteria can lower the levels of heavy metals Pb. Based on the characteristics of bacteria in biochemical tests, namely the confectionery test (Maltose, Glucose, Sucrose) obtained positive results, negative Lactose test, red /red TSIA test, negative marker test, and positive. Basil-shaped gram-negative bacteria refer to the genus Desulfobacter.
EFFECT OF SOAKING TIME AND CONCENTRATION OF GIBERELIN (GA3) ON THE GROWTH OF GARLIC (Allium sativum) VAR. SANGGA SEMBALUN Syahmi Edi; Malem Teta Sinulingga
JBIO: jurnal biosains (the journal of biosciences) Vol 9, No 1 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v9i1.43694

Abstract

This study aims to determine the germination of garlic (Allium sativum) var. Sangga sembalun to the treatment of soaking time and GA3 concentration. This research was conducted in the field of planting in Sukandebi Village, Naman Teran District, Karo Regency. This research was conducted from March to July 2022. The research design used was a factorial completely randomized design (CRD) with 2 factors and 4 replications. The first factor is the soaking time of GA3 which is 12 hours and 24 hours. The second factor was the concentration of GA3, namely 0 ppm, 3 ppm, 6 ppm, 9 ppm, and 12 ppm. The parameters observed consisted by time of seed germination, germination percentage, sprout height, and root length. The data obtained from this study were analyzed by analysis of variance (ANOVA) and to determine the best treatment, Duncan Multiple Range Test (DMRT) was conducted at the 5% significance level. The results of the study showed that the soaking time and GA3 concentration on garlic var. Sangga sembalun significantly affected all parameters of observation which are time of seed germination, germination percentage, sprout height, and root length. The results showed that the soaking time of garlic var. Sangga sembalun for 24 hours was able to speed up the time of emergence of sprouts, germination percentage, sprout height, and root length. The concentration of 15 ppm GA3 can accelerate the time to sprout and increase the percentage of germination, while the concentration of 9 ppm GA3 increases the sprout height and root length.
MORPHOLOGICAL CHARACTERISTICS OF TERRESTRIAL ORCHIDS IN THE FOREST OF BUKUM VILLAGE , SIBOLANGIT DISTRICT, DELI SERDANG REGENCY Dwi Indriany; Wina Dyah Puspita Sari; Yusran Efendi Ritonga; Mhd Yusuf Nasution
JBIO: jurnal biosains (the journal of biosciences) Vol 9, No 1 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v9i1.39148

Abstract

The study aims to determine the types of terrestrial orchids that exist in the Forest of Bukum Village, Sibolangit District, Deli Serdang Regency. This study uses an exploratory method. Orchid found identified and observed morphology from root to fruit. Type 15 species of orchids were found including Anoectochilus longicalcaratus J.J.Sm., Anoectochilus reinwardtii Blume, Calanthe triplicata (Willemet) Ames, Chrysoglossum ornatum Blume, Corymborkis veratrifolia (Rein.w) Blume, Cymbidium ensifolium (L.) Sw., Cystorchis stenoglossa Schltr, Habenaria sp, Hetaeria oblongifolia Blume, Liparis rheedei Lindl, Malaxis oculata (Rchb.f.) Kuntze, Malaxis ophrydis (J.Koenig) Ormerod, Phaius callosus (Blume) Lindl, Phaius corymbioides Schltr, Plocoglottis javanica Blume. 7 species of which have pseudobulbs.
POPULATION OF MACROZOOBENTOS IN MARIAH BANDAR SPRING WATERS, PEMATANG BANDAR DISTRICT, SIMALUNGUN REGENCY, NORTH SUMATRA Masdiana Sinambela; Yosepin Hutagaol; Tonggo Sinaga; Andreas Simorangkir
JBIO: jurnal biosains (the journal of biosciences) Vol 9, No 1 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v9i1.46793

Abstract

Research on macrozoobenthic populations in Mariah Bandar Springs, Pematang Bandar District, Simalungun Regency, North Sumatra Province was carried out from May 2022 to June 2022. The purpose of this study was to gather information about macrozoobenthos populations in Mariah Bandar Springs and to find out about the diversity of macrozoobenthos populations in Mariah Bandar Spring Waters. This research was conducted in three locations, namely upstream, middle and downstream of Mariah Bandar Springs. There are each sub-location from each of these locations, in one location consisting of the upper, middle and lower ends. Each of the locations uses three points in macrozoobenthos sampling. Macrozoobenthos sampling using surber net. The results showed that there were 9 species of macrozoobenthos including Lumbricus sp, Thiara winteri, Enallagma nymph, Thiara scraba, Corbicula fluminea, Chironomus sp, Orthetrum glaucum larvae, Hagenius brevistylus and Euplanaria sp. Based on the Shannon-Wienner diversity index, locations I, II, III have low diversity (H' = 0.147).
PLANT ETNOBOTANY FOR POSTPARTUM CARE BY MANDAILING TRIBE IN VILLAGES AROUND THE BATANG GADIS NATIONAL PARK AREA, MANDAILING NATAL REGENCY Fitriana Nur Nasution; Aswarina Nasution; Ahmad Shafwan S Pulungan
JBIO: jurnal biosains (the journal of biosciences) Vol 9, No 1 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v9i1.35614

Abstract

Marsidudu is a smoking process to accelerate the discharge of postpartum blood so that the body becomes healthy after childbirth. The ingredients used in the marsidudu come from plants. According to the Mandailing tribe, currently, the marsidudu has begun to be abandoned by the community due to the influence of modernization. This study aims to reveal and document belief systems, local knowledge, plant utilization practices, and plant cultural significance (Index of Cultural Significance) plants used by the Mandailing Tribe in villages around the Batang Gadis National Park area related to plants in the marsidudu. The research location is in 2 villages around the Batang Gadis National Park, Mandailing Natal Regency. Data was collected through semi-structured interviews, participatory observation, documentation, collection of plant samples, and making herbarium. The data were analyzed descriptively qualitatively and quantitatively. The results showed that the marsidudu believed to be able to keep mothers and babies away from subtle-being disorders and has benefits for the health of the mother and baby. There are 13 plant species covering 9 families used in the marsidudu. The most widely used species come from the Asteraceae family, which is as many as 3 species. The dominant herb habitat is used in the marsidudu which includes 6 plant species. The part/organ of the leaf that is most widely used in the marsidudu. The plants used in the marsidudu are placed on coconut husks until the plants start to smoke. When the plants start to emit smoke, the mother covers the body with a sarong and spreads her legs wide with the uterus perpendicular to the burned plant. Tangkal langkeso (Artemisia vulgaris L.) and tindo tasik (Clerodendrum serratum L.) have important cultural values (Index of Cultural Significance) in the high category of the marsidudu by the Mandailing Tribe.
TEST OF ANTIBACTERIAL ACTIVITY OF THE ETHANOL EXTRACT OF PULUTAN LEAVES (Urena lobata L.) AGAINST Escherichia coli Mhd Yusuf Nasution; Marlinda Nilan Sari Rangkuti; Dina Handayani; Tessa Togatorop; Agnes Adela Br Ginting; Ahmad Shafwan S Pulungan
JBIO: jurnal biosains (the journal of biosciences) Vol 9, No 2 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v9i2.48764

Abstract

ABSTRAK  Tessa Togatorop, NIM 4193520022, Uji Aktivitas Ekstrak Etanol Daun Pulutan Daun Pulutan (Urena lobata L.) Terhadap Bakteri Escherichia coli Dan Staphylococcus aureus. Penelitian ini bertujuan untuk mengetahui kandungan metabolit sekunder, uji aktivitas antibakteri ekstrak etanol daun pulutan (Urena lobata L.) dan untuk mengetahui uji Konsentrasi Hambat Minimum (KHM) dan uji Kosentrasi Bunuh Minimum (KBM) terhadap bakteri Escherichia coli dan Staphylococcus aureus. Uji skrining fitokimia dilakukan dengan beberpa pereaksi yang sesuai. Uji aktivitas antibakteri menggunakan metode difusi cakram terhadap bakteri Escherichia coli dan Staphylococcus aureus. Uji KHM dan KBM dilakukan dengan menghitung selisih nilai absorbansi setelah inkubasi dan sebelum inkubasi yang dapat menghambat dan membunuh bakteri uji. Hasil skrining fitokimia esktrak etanol daun pulutan mengandung; flavonoid, saponin, tanin, dan steroid/terpenoid. Hasil uji aktivitas antibakteri dengan metode difusi cakram ekstrak etanol daun pulutan 15%, 25%, 35%, 45%, 55% dan 65% terhadap bakteri Escherichia coli berturut-turut adalah 4,0625 mm, 4,2 mm, 4,85 mm, 3,075 mm, 4,5875 mm, dan 4,3 mm sedangkan pada bakteri Staphylococcus aureus berturut-turut adalah 2,5625 mm, 3,05 mm, 3,35 mm, 3,55 mm, 3,175 mm, dan 4,5 mm. Hasil penelitian menunjukkan ekstrak etanol daun pulutan memiliki aktivitas antibakteri terhadap bakteri Escherhicia coli dan Staphylococcus aureus dalam kategori yang lemah. Uji KHM pada bakteri Escherichia coli adalah konsentrasi 65% dan pada bakteri Staphylococcus aureus adalah konsentrasi 55%. Uji KBM pada bakteri Escherichia coli dan Staphylococcus aureus tidak didapat pada setiap perlakuan konsentrasi. Kata Kunci : Pulutan (Urena lobata L.), Antibakteri, Konsentrasi Hambat Kosentrasi Bunuh Minimum
THE EFFECT OF LIQUID ORGANIC FERTILIZER FROM CABBAGE WASTE ON THE GROWTH OF PAKCOY (Brassica rapa L. Var. Chinensis) Syahmi Edi; Veby Emeninta Br Barus
JBIO: jurnal biosains (the journal of biosciences) Vol 9, No 2 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v9i2.50408

Abstract

This study aims to determine the effect of liquid organic fertilizer from cabbage waste on the growth of mustard greens (Brassica rapa L. Var Chinensis). This research was conducted from March to May 2022 in Sukandebi Village, Naman Teran District, Karo Regency. This type of research is an experimental study with Non Factorial Completely Randomized Design, with 5 treatments and 5 replications. Analysis of research data used analysis of variance (ANOVA) with Duncan's multiple range test or Duncan's Multiple Range Test (DMRT). The parameters observed in this study were plant height, number of leaves, root length, fresh weight and dry weight. From the results of the study it was concluded that liquid organic fertilizer from cabbage waste had a significant effect on the observation of plant height, number of leaves, root length, fresh weight, and dry weight. The best growth of pakcoy mustard (Brassica rapa L. Var Chinensis), was at a dose of 500 ml/polybag. Meanwhile, the lowest growth of mustard greens (Brassica rapa L. Var Chinensis) was found in the control.
ACTIVITY TEST OF ETHANOL EXTRACT OF Asystasia gangetica LEAVES AGAINTS Escherichia coli BACTERIA Ahmad Shafwan S Pulungan; Mhd Yusuf Nasution; Dina Handayani; Ade Yesi Yuliana
JBIO: jurnal biosains (the journal of biosciences) Vol 9, No 2 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v9i2.48760

Abstract

Daun Asystasia gangetica memiliki berbagai senyawa metabolit sekunder. Senyawa metabolit ini berpotensi menghambat pertumbuhan bakteri Escherichia coli. Tujuan dari penelitian ini adalah menguji aktivitas antibakteri ekstrak daun Asystasia gangetica terhadap bakteri Escherichia coli. Penelitian ini menggunakan metode maserasi dengan pelarut etanol pro analisis. Uji metabolit sekunder dilakukan dengan menggunakan pereaksi warna. Uji aktivitas antibakteri dilakukan dengan metode difusi cakram dengan 4 kali pengulangan terdiri dari konsentrasi 15%, 25%, 35%, 45%, 55% dan 65%. Kontrol positif yang digunakan dalam penelitian ini adalah ciprofloxacin dan kontrol negatif adalah pelarut etanol pro analasis. Uji metabolit sekunder menunjukkan bahwa daun Asystasia gangetica mengandung senyawa alkaloid, flavonoid, saponin, steroid, dan tanin. Uji aktivitas antibakteri menunjukkan bahwa ekstrak etanol daun Asystasia gangetica berpotensi dalam menghambat bakteri Escherichia coli. Kata Kunci: Asystasia gangetica, Antibakteri, Escherichia coli
PRODUCTION OF ECO-ENZYMES FROM FRUIT PEEL WASTE AS AN EFFORT TO ADDRESS ORGANIC WASTE MANAGEMENT ISSUES IN INDONESIA Ayu Putri Ningsih
JBIO: jurnal biosains (the journal of biosciences) Vol 9, No 2 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jbio.v9i2.49179

Abstract

Based on the data from the National Waste Management Information System of the Ministry of Environment and Forestry in 2022, the waste production in Indonesia reached 54,455 tons per day. When calculated on an annual scale, Indonesia generated a total of 19.88 million tons of waste. 41.55% of this waste was composed of food scraps. One alternative to address the issue of organic waste is by processing it into eco-enzymes. Eco-enzymes are complex organic compound solutions resulting from the fermentation of organic waste, water, and sugar. The objective of this research is to produce eco-enzymes from fruit peels as a solution to organic waste management at the household level. This study is an experimental research that employs three types of substrate variations with the following formulation: water:fruit peels:sugarcane molasses = 10:3:1. The fruit peels used in creating these eco-enzymes are pineapple rinds (Ananas comosus), sweet orange rinds (Citrus sinensis), mango rinds (Mangifera indica L.), mangosteen rinds (Garcinia angostana L.), Kepok banana rinds (Musa paradisiaca Linn), rambutan rinds (Nephelium lappaceum L.), avocado rinds (Persea americana Mill), guava rinds (Psidium guajava), water apple rinds (Syzygium aqueum), cucumber rinds (Cucumis sativus), and kedondong rinds (Spondias dulcis). The research findings indicate that the fermentation process of eco-enzymes was successful. Based on the results of the organoleptic test, the characteristics of the eco-enzyme product produced in this study include a pungent and fresh aroma, and a murky brown color

Page 21 of 27 | Total Record : 269

 19   20   21   22   23 

Filter by Year

2013 2025


Reset
Filter By Issues
All Issue Vol. 11 No. 3 (2025): JURNAL BIOSAINS Vol. 11 No. 2 (2025): JURNAL BIOSAINS Vol. 11 No. 1 (2025): JURNAL BIOSAINS Vol. 10 No. 3 (2024): JBIO : JURNAL BIOSAINS (THE JOURNAL OF BIOSCIENCES) Vol. 10 No. 2 (2024): JBIO : JURNAL BIOSAINS (THE JOURNAL OF BIOSCIENCES) Vol 10, No 2 (2024): JBIO : JURNAL BIOSAINS (THE JOURNAL OF BIOSCIENCES) Vol 10, No 1 (2024): JBIO : JURNAL BIOSAINS (THE JOURNAL OF BIOSCIENCES) Vol. 10 No. 1 (2024): JBIO : JURNAL BIOSAINS (THE JOURNAL OF BIOSCIENCES) Vol 9, No 3 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences) Vol. 9 No. 3 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences) Vol 9, No 2 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences) Vol 9, No 1 (2023): JBIO : Jurnal Biosains (The Journal of Biosciences) Vol 8, No 3 (2022): JBIO: jurnal biosains (the journal of biosciences) Vol 8, No 2 (2022): JBIO: jurnal biosains (the journal of biosciences) Vol 8, No 1 (2022): JBIO: jurnal biosains (the journal of biosciences) Vol 7, No 3 (2021): Jurnal Biosains Vol 7, No 2 (2021): Jurnal Biosains Vol 7, No 1 (2021): Jurnal Biosains Vol 6, No 3 (2020): Jurnal Biosains Vol 6, No 2 (2020): Jurnal Biosains Vol 6, No 1 (2020): Jurnal Biosains Vol 5, No 3 (2019): Jurnal Biosains Vol 5, No 2 (2019): Jurnal Biosains Vol 5, No 1 (2019): Jurnal Biosains Vol 4, No 3 (2018): Jurnal Biosains Vol 4, No 2 (2018): Jurnal Biosains Vol 4, No 1 (2018): Jurnal Biosains Vol 3, No 3 (2017): Jurnal Biosains Vol 3, No 2 (2017): Jurnal Biosains Vol 3, No 1 (2017): Jurnal Biosains Vol 2, No 3 (2016): Jurnal Biosains Vol 2, No 2 (2016): Jurnal Biosains Vol 2, No 1 (2016): Jurnal Biosains Vol 1, No 3 (2015): Jurnal Biosains Vol 1, No 2 (2015): Jurnal Biosains Vol 1, No 1 (2015): Jurnal Biosains Vol 1, No 2 (2013): Bio Hasil Review Fauziyah Harahap More Issue