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BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan)
Published by Universitas Medan Area
ISSN : 25975269     EISSN : 2356458X     DOI : 10.31289
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology
Biolink focuses on the publication of the results of scientific research related to fields. This article is published in the internal and external academic community of the University of Medan Area (UMA) especially in the field of Biology. Biolink publishes scientific articles in the scope of biology that includes environmental biology, industrial biology and health biology. Published articles are the results of research articles, studies or critical and comprehensive scientific studies on important issues related to the field of biology.
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Articles 378 Documents
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PHYTOREMEDIATION OF HYDROCARBON-CONTAMINATED SOILS USING JARAK KEPYAR (Ricinus communis L) AND COMPOST Firman Hidayat Madubun; Radjali Amin; Dewi Rahyuni
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 7, No 1 (2020): August 2020
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (524.801 KB) | DOI: 10.31289/biolink.v7i1.3328

Abstract

Phytoremediation is known as one of the bioremediation techniques which may remove, stabilize, and/or destroy contaminants in the media. This study was aiming at collecting evidence of phytoremediation, which was applied with the addition of compost. Jarak Kepyar (Ricinus communis L.) was selected for this study because its seeds highly potency as biodiesel raw materials. Laboratory research scale was prepared, and the experiment design was complete random design with three replications. The experiment design was a full random design with three replications. The treatments were mixed contaminated soil (contaminated soil: compost = 3:1) and R. communis; and mixed garden soil (soil:compost=3:1) and R. communis; and contaminated soil without compost and R. communis. The statistical t-Test with a range of confidence at 95% showed that the phytoremediation significantly removed the Total Petroleum Hydrocarbons (TPH) at 97.7%. TPH accumulations were detected in roots and shoot ranged from 3377.6 mg/kg to 3555.0 mg/kg. R. communis leave development was the most sensitive indicator to biotoxicity of the hydrocarbons in the soils.
GAMBARAN KARAKTERISTIK SAFETY LEADERSHIP PT. RND DI JAKARTA-SURABAYA TAHUN 2012 Desyawati Utami
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 3, No 2 (2017): Februari
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v3i2.839

Abstract

This reseach will describe and explain the overall the characteristics of safety leadership in PT. RND, Jakarta-Surabaya in 2012 with in-depth interviews and direct observation for the leaders in PT. RND conducted in April-June 2012. Implementation of safety given by the supervisor 3, although the decision-making for implementation of safety continue through the director. Disengagement supervisor and team leader of safety programs in the field resulted in the implementation of safety systems are not effective in PT. RND. The leaders in PT. RND do not have the perspective of safety which is reflected in their personality, leadership style and best practices in leading employees to implement safety effectively. The results of this research obtained personality, which is owned by the leaders of PT. RND is still not optimal on the characteristics of emotional resilience. Transformational leadership style has been used by some leaders of PT. RND in leading employees but not yet used by directors and supervisors 3. Best practices characteristic held by the leaders of PT. RND are not optimal in the vision and communication. Characteristic of safety leadership in PT. RND is not optimal as an unstable emotional resilience. The leaders in PT. RND does not have a clear plan in the execution of the work, the difference in the vision and the communication path that overlaps giving an obstacle to the leaders of PT. RND in leading the workers.
SIFAT FISIK MINYAK ATSIRI DAUN PALA (Myristica fragrans Houtt) ACEH SELATAN Rizki Damayanti; Cut Nurul Fahmi; Rustam Efendi
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 1, No 2 (2015): Februari
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v1i2.727

Abstract

Essential oils are oils derived from plants that are aromatic. Numeg leaves are part of plant that containing essential oil. Each of essential oils from different plants will have different physical properties. In this study, the essential oil is produced using steam distillation method. The purpose of this study was to determine the physical properties of essential oils of nutmeg leaves South Aceh. The physical properties of essential oils can be evaluated from the percentage of moisture content, ash content, aroma, color, and rendemen. The results showed that the essential oil of nutmeg leaves are pale yellow, has a characteristic smell of nutmeg, the percentage of moisture content and ash, viscosity, density is respectively 6.8%, 2.1%, 0.4% yield density, 3.8 P, 0576 g/cm3. The essential oil of nutmeg leaves South Aceh can be used as pharmaceuticals. But the density of leaf nutmeg oil does not comply with ISO Standard.
IDENTIFIKASI DAN UJI AKTIVITAS ANTIBAKTERI KAPANG LAUT DIISOLASI DARI KORAL LUNAK FAVITES SP. Ahmad Zainal Fanani; Tisa Ayu Novitasari; Siti Choiriah Rofi’ah; Siti Nur Rukhoiyah Dewi; Heru Pramono
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 6, No 1 (2019): Agustus
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v6i1.2253

Abstract

The aims of this study was to investigate the antimicrobial activity of fungi associated with coral. The fungi was cultured by streak plate method on potato dextrose agar (PDA) and reisolated with the same medium and were stored in slant agar for identified with morphological approach. Antibacterial activity fungi associated with coral was tested using overlay method against Escherichia coli and Staphylococcus aureus. Based on morphological analysis, five fungi were identified as Candidasp., Fusariumsp., Cladophialophorasp., Phaeoacremoniumsp., and Trichophytonsp. The antibacterial assay showed that Phaeoacremoniumsp. and Trichophytonsp. has antibacterial activity and potential as source of antibacterial for futher study.
KEANEKARAGAMAN NEPENTHES DI KECAMATAN SIPIROK Nurmaini Ginting
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 5, No 1 (2018): Agustus
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v5i1.1691

Abstract

This research aims to determine the diversity of Nepenthes species in Sipirok sub-district. Location determination research using survey method. The collection of the data is performed using the methods of exploration. Found 7 types of Nepenthes eustachya Nepenthes i.e., Nepenthes ovata, Nepenthes gracilis, Nepenthes rhombicaulis, Nepenthes reinwardtiana, Nepenthes tobaica and Nepenthes reinwardtiana natural silangan one x Nepenthes tobaica. Nepenthes found the lowlands and the Highlands. Nepenthes eustachya is found at an altitude of 1008 mdpl, where this type previously found only in lowland Sumatra.
KEANEKARAGAMAN JENIS MANGROVE DI DESA TANJUNG REJO KECAMATAN PERCUT SEI TUAN SUMATERA UTARA Julita Erischa Br Bangun; E Harso Kardhinata; Ferdinand Susilo
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 1, No 1 (2014): Agustus
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v1i1.13

Abstract

Research on mangrove species diversity in the village of Tanjung Rejo Percut Sei Tuan district in North Sumatra was held in June-September 2012 which aims to determine mangrove vegetation species diversity, species density, frequency and dominance of mangrove species. Primary data obtain by sampling and direct observation by making the observation plots at the study site. Observations indicate that 14 mangrove species classified into eight families. Values of density, frequency and dominance for the highest level of the tree, and the seedling pacang contained on Avicenniaceae. Mangrove species diversity to the next level of the tree is 0.80 and the 1.38 level pacang 1.88 seedlings. The range indicates the diversity of mangrove species is low. 
PERSEPSI WANITA USIA SUBUR TENTANG INSPEKSI VISUAL ASAM ASETAT (IVA)UNTUK DETEKSI DINI KANKER SERVIKS Debi Novita Siregar; Dewi Sartika
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 5, No 2 (2019): Februari
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v5i2.1756

Abstract

Cervical cancer is the second major cancer, after breast cancer, for childbearing age women. The are many new cases of cervical cancer in which 50% resulted in the patient death. Cervical cancer can be cured if detected quickly. IVA is a simple method that is able to be used for early detection in “Puskesmas”, relatively fast and accurate. The objectives of this study was to determine the perception of childbearing age women towards IVA for early detection of cervical cancer in “ Kelurahan Helvetia Tengah, Kecamatan Medan Helvetia. This research used qualitative design based on case study approach. There were 11 people samples (10 women of childbearing age and 1 person, a Helvetia health center employee. The results showed that the fertile women in Helvetia village had a positive perception about IVA for early detection of cervical cancer. However, they were reluctant to check IVA because afraid of the diseases. The conclusion is that clear information of IVA and cervical cancer is very important thing that should be understood by the childbearing age women.
FAKTOR – FAKTOR YANG MEMPENGARUHI PERMINTAAN TANAMAN ANGGREK (Orchidaceae) DI KOTA MEDAN Khairunnisa Rangkuti
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 4, No 2 (2018): Februari
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v4i2.1154

Abstract

The purpose of this study was to determine the effect of prices, consumer tastes, income and location / place to Requests Orchid Plant in the city of Medan, and to know the Demand Elasticity of orchids in the city of Medan. The data collected from the data Primary and Secondary Data. Based on the results of testing statistical analysis obtained by value Multiple R of 86.6%. The value of F table at the level of 0.05 is thus calculated F 2,76 = 18.801> F table = 2.76 at 95% confidence level. Furthermore, in testing T test, to see the effect of demand factors partially on the request of orchids, the value of the T-table 2.045 with a confidence level of 86.6%. X2, X3 and X4 real impact While real variables X1 No Effect on Demand (Y). Analysing the value of Elasticity, Elastic Retrieved much as 3.395> 1. Demand level of sensitivity to the independent variable (tastes, income, and location) of 3.395.
STIMULASI TUNAS PISANG BARANGAN (Musa acuminata L.) SECARA IN VITRO DENGAN BERBAGAI KONSENTRASI IBA (Indole-3-butyric acid) DAN BA (Benzyladenin) Saipul Sihotang
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 3, No 1 (2016): Agustus
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v3i1.808

Abstract

The research aim was get the best medium combination of IBA dan BA to stimulated formation number of shoots of banana Barangan. The study used factorial experiment aranged in Completely Randomized Desigh (CRD). The treatment consisted of 2 factors. The frist factor was the IBA concentration, consisted of three levels 0,0 mg/l, 0,5 mg/l, and 1,0 mg/l. The second factor was BA concentration consisted of four level, 0,0 mg/l, 1,5 mg/l, 3,0 mg/l, and 4,5 mg/l. The result showed that combinations of IBA 0,0 mg/l and BA 0,5 mg/l was the best medium to induce shoot multiplication with 4,00 shoots explant. IBA concentrations had no significant effect on number of shoots. However, the IBA concentation affected the number of root explant.
SKRINING FITOKIMIA DAN UJI AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL DAUN SANGITAN (Sambucus javanica Reinw) TERHADAP PERTUMBUHAN BAKTERI Eschericia coli DAN Salmonella thypi Eva Sartika Dasopang
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 4, No 1 (2017): Agustus
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v4i1.966

Abstract

Leaves of sangitan (Sambucus javanica Reinw) are often found but noticed. The leaf part of the sangitan plant is used to treat swelling, insecticides, antidiarrheal, antiinfectives, wounds, smoothing the skin as it contains flavonoid chemical compounds, glycosides, anthracton glycosides, saponins, steroids / triterpenoids and tannins. Screening results of ethanol extract of sour leaves (SambucusjavanicaReinw) contain alkaloid compounds, flavonoids, glikosida, antrakinon glycosides, saponins, steroids / triterpenoids and tannins. The extraction of sangitan leaves was done by maceration using 96% ethanol. Examination of antibacterial activity of ethanol extract of sangitan leaves was done in vitro by diffusion method of wells with concentrations of 500, 400, 300, 200 and 100 mg / ml. This study used cotrimosazole as a comparator and 96% ethanol as a negative control. The extract of ethanol leaves sangitan showed anti bacterial activity against bacteria Eschericia coli and Salmonella thypi at concentration 500 mg / ml respectively 16,11 mm and 17,04 mm which is classified strong but when compared with antibiotic cotrimosazole 10 mg / ml visible diameter of inhibit ethanol extract Leaves sangitan still much lower that is 30,35 mm in bacterium Eschericia coli and 33,15 mm in Salmonella thypi bacteria whereas ethanol extract do not show inhibitory power.

Page 13 of 38 | Total Record : 378

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