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Ahmad Shafwan S. Pulungan
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biosains@unimed.ac.id
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Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Negeri Medan Jl. Willem Iskandar Psr V Medan Estate, Sumatera Utara
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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 5 Documents
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Search results for , issue "Vol 8, No 2 (2022): JBIO: jurnal biosains (the journal of biosciences)" : 5 Documents clear
Suspension Stability Ethanol Extract Of Frankincense Gum (Styrax Benzoin) Nora Susanti; Yosia Gopas Oetama Manik; Jamalum Purba
JBIO: jurnal biosains (the journal of biosciences) Vol 8, No 2 (2022): 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.v8i2.33622

Abstract

Sap is a very important commodity in the industrial pharmacy, perfumes and medicines contain abundant active compounds of frankincense making resin widely used. Extraction and solvation processes play an important role in the production of stable frankincense extract. One of the widely used preparations is suspension, which is an active compound that does not dissolve in water to become soluble. The purpose of this study was to determine the manufacture of a suspension of frankincense gum extract as an active pharmaceutical ingredient. The method used was precipitation using cosolvent, surfactant and agitation process at 1500 rpm at a temperature of 40oC. Various comparisons were analyzed for phytochemical screening, viscosity and pH. in the most stable formula to be tested, the size of the suspension particles found that frankincense extract was soluble in distilled water with an average particle size is 4.80205 μm. .
ANTIOXIDANT POTENTIAL OF RED AND WHITE CABBAGE: A COMPARISON Huyen-Trang Thi Tran; Khairiza Lubis; Hau Van Doan; Thach N Ho; Kieu-Tien T Nguyen
JBIO: jurnal biosains (the journal of biosciences) Vol 8, No 2 (2022): 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.v8i2.36656

Abstract

This study aimed to compare the antioxidant activity of white cabbage (B. oleracea var. capita f. alba) and red cabbage (B. oleracea var. capita f. rubra) in vitro. Dried cabbages were extracted by Soxhlet extraction using chloroform as solvent. The extracts were screened for phytochemicals followed by the antioxidant capacity measurement through free radical scavenging activity (DPPH and ABTS). The results showed that red cabbage extract (RCE) significantly had stronger antioxidant activity than white cabbage (WCE) (P<0,05). The IC50 values of RCE were 350,80 ± 5,27 µg/ml (DPPH) and 87,03 ± 1,92 µg/ml (ABTS) while these of WCE were 613,75 ± 8,76 µg/ml and 114,57± 0,41 µg/ml, respectively. Moreover, a higher level of phytoconstituents was found in RCE based on thin-layer chromatography analysis. These findings support that red cabbage has higher antioxidant activity than white cabbage which may be correlated with its phytoconstituents concentration.
ETNOBOTANY OF PLANTS IN THE MANDAILING TRADITIONAL WEDDING SERVICE IN THE VILLAGE AROUND THE BATANG GADIS NATIONAL PARK AREA, MANDAILING NATAL REGENCY Levia Febrialisti; Aswarina Nasution
JBIO: jurnal biosains (the journal of biosciences) Vol 8, No 2 (2022): 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.v8i2.36497

Abstract

This study aims to document belief systems, local knowledge systems, plant utilization practices, and find out the cultural importance or ICS of plant species used in traditional Mandailing wedding ceremonies in villages around the TNBG area. The research method is qualitative and quantitative. Data was collected through semi-structured interviews, participatory observation, documentation, focus group discussions (FGD), collection of plant samples and making herbarium. The plants used in the traditional Mandailing wedding ceremony are 43 species which are included in 20 plant families. Plants with high ICS value were found in burangir (Piper betle L.), sontang (Uncaria rhynchophylla Miq.), pining (Areca catechu L.), and timbako (Nicotiana tabacum L.) with an ICS value of 96.
ETNOBOTANY OF TRADITIONAL MEDICINE PLANTS OF MANDAILING TRIBE IN THE SIMPANG TALAP RIVER FLOW REGION, RANTO BAEK DISTRICT, MANDAILING REGENCY Ofy Asyma Matondang; Dina Handayani
JBIO: jurnal biosains (the journal of biosciences) Vol 8, No 2 (2022): 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.v8i2.36388

Abstract

Documentation of the use of medicinal plants is a race against time. This traditional medical science is not documented, only conveyed orally, it is attractive to the elderly and less attractive to teenagers, causing this knowledge to be left behind and lost in one generation. This study aims to publish and document belief systems, utilization practices, local knowledge and cultural importance values of traditional medicinal plant species of the Mandailing Tribe. Location The research was conducted in Manisak Village, Ranto Baek District, Mandailing Natal Regency, which was held from December 2021 to March 202. Data was collected through semi-structured interviews, participatory observation, documentation, Collection of plant samples and the manufacture of herbarium. The data were analyzed descriptively qualitatively and quantitatively. The results showed that the Mandailing people used 44 species of medicinal plants which were included in 30 families. The highest family was Zingiberaceae 4% while the lowest family was Rutaceae 1%. The highest habitus of herb and the least habitus was liana. The practice of using plants by the Mandailing Tribe begins with meeting the datu, providing materials, materials in the form of plants obtained from the advice of the datu or parents who understand the pulungan of medicinal plants, the method of processing is mostly boiled and the method of use is mostly by drinking. Eme (Oriza sativa) with an ICS value of 71, its use is as a medicinal ingredient, a staple food ingredient that has no substitute, and traditional ritual events (mythology). Keywords: Ethnobotany, Traditional Medicine, Mandailing Tribe Belief System, utilization practices, local knowledge, Values of cultural importanc.
MORFOMETRIC ANALYSIS OF MANGROVE CRAB (Scylla serrata) IN TANJUNG REJO VILLAGE, PERCUT SEI TUAN DISTRICT, DELI SERDANG REGENCY, NORTH SUMATERA Rifqah Amalia; Puji Prastowo
JBIO: jurnal biosains (the journal of biosciences) Vol 8, No 2 (2022): 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.v8i2.36543

Abstract

This study aims to determine the character that contributes the most to the body weight of mud crab (Scylla serrata) and the morphometric differences between male and female mangrove crabs (Scylla serrata). The research was carried out in Tanjung Rejo Village, Percut Sei Tuan District, Deli Serdang Regency, North Sumatra from March to April 2022. This research is quantitative descriptive with explorative methods, namely direct sample collection or Hand sorting. The morphometric parameters observed were carapace width, carapace length, carapace height, optical groove widths, chela length, chela height and deep length. The analysis used is multiple linear regression with stepwise method and t test. The results of the study showed that the morphometric characters that contributed the most to body weight in male mud crabs were the length of the right chela (93%) and carapace length (94.1%), while in female mud crabs, carapace height (87%) and carapace width (91%) and there is a very significant difference between male and female mud crab morphometrics on the characters of optical groove widths, right chela length, right chela height, right chela deep length, left chela length, and chela height. on the left and deep length on the left. Meanwhile, significant characters were found in carapace width and carapace height. For carapace length characters showed no significant difference.

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