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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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UJI AKTIVITAS DAN IDENTIFIKASI JAMUR RHIZOSFER PADA TANAH PERAKARAN TANAMAN PISANG (Musa paradisiaca) TERHADAP JAMUR FUSARIUM Dewi Nur Anggraeni; Muhammad Usman
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.v1i2.729

Abstract

The main cause of decline in banana production is fusarium wilt caused by the fungus Fusarium oxysporum f.sp.cubense (Foc). This disease is systemic, it is very dangerous because it can kill plants. Fusarium wilt disease ranks first in the list of diseases of bananas in Indonesia, fusarium wilt very difficult to control because it has not found a commercial banana cultivars resistant. Integrated Pest Management (Biological Control) using biological agents, one of which is the rhizosphere that has the ability to suppress the growth of Fusarium wilt (Fusarium oxysporumf.sp.cubense) in vitro. The purpose of this study was to determine the ability of an antagonist of the rhizosphere fungus to fungus fusarium. This research method is a rhizosphere fungal activity test against fusarium fungus. The results showed that 12 isolates the rhizosphere has the potential to inhibit the growth of fungi fusarium the percentage inhibition ie 82% of isolates A1, B2 D3 by 83% and 80%, A2 isolates the isolates that produce inhibition of the smallest amounting to 15%. Based on identification consists of rhizosphere fungi genus Trichoderma sp., Aspergillus sp., And Penicillium sp.
UJI AKTIVITAS ANTIBAKTERI EKSTRAK DAUN SERAI WANGI (CYMBOPOGON NARDUS) TERHADAP BAKTERI PROPIONIBACTERIUM ACNES Brigad Mahardika Winato; Erfan Sanjaya; Lisdawaty Siregar; Solinia Kifami Yohana Maria Vianne Fau; dr. Maya Sari Mutia
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.v6i1.2210

Abstract

Acne is a disease of the skin that often occurs during adolescence until adulthood. Acne is characterized by the appearance of several signs, namely blackheads, pustules, papules, cysts and nodes in the neck, face, upper arms, back and chest area. Acne is also a skin disease that affects more than 85% of adolescents around the world. Although not life-threatening, acne can affect a person's quality of life by giving a psychological effect that is bad for the sufferer in the form of a person's way of judging, responding to and looking at his condition and situation. The purpose of this study was to determine the inhibitory power of citronella extract (Cymbopogon nardus) on the growth of Propionibacterium acnes bacteria. The study was conducted with experimental methods with the posttest design only group design controls conducted at the Microbiology Lab at the Faculty of Medicine, University of Prima Indonesia and the Pharmacy and Toxicology Lab at the Faculty of Pharmacy, University of North Sumatra. The results showed that lemongrass leaf extract had a inhibitory effect on the growth of Propionibacterium acnes bacteria with various concentrations of 20, 40, 60, 80 and 100%. The higher the concentration of fragrant lemongrass extract, the better the inhibition power.
ISOLASI DAN AKTIVITAS ANTI MIKROBA BAKTERI ASAM LAKTAT DARI FERMENTASI NIRA KELAPA SAWIT Edy Fachrial; Harmileni Harmileni
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.v5i1.1707

Abstract

The aim of the study was to isolate lactic acid bacteria (LAB) from palm oil sap and to investigate the anti microbial activity of LAB against pathogen bacteria, Staphylococcus aureus and Escherichia coli using disc diffusion method. Palm oil sap were enriched using spesific medium MRS (Man Rogosa Sharpe) broth overnight, serial dilution were conducted and the culture were spread on the surface of MRS agar and then incubated for 48 hours. The result showed the total colonies of LAB were 1,4 x 107 CFU/mL. 6 colonies were randomly selected namely EHN1, EHN2, EHN3, EHN4, EHN5 and EHN6. The selected colonies are classified as Gram positive and bacilli in morphology. Antimicrobial activity against pathogenic bacteria was investigated using disc diffusion method. Antimicrobial activity of isolates against E.coli and S.aureus were 12,2 mm; 9mm; 11mm; 11mm; 10,5mm; 12 mm dan 13,5mm; 11mm; 12mm; 11,5mm; 12mm; 12,5mm respectively. from these result it can be concluded that LAB isolated from oil palm sap has potential as probiotic.
UJI ANTI MIKROBA EKSTRAK AKAR SOM JAWA (Tanilum paniculatum, Jacq. (Gaertn)) Sartini Sartini; Muhammad Usman
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.v1i1.15

Abstract

Antimicrobial test was conducted on plant root extract som jawa (Talinum paniculatum, jacq. (Gaertn)). Five hundred gram simplicia of som jawa root was macerated using methanol and n-heksana, and coagulated. The screening of extract methanol and n-heksana was done to get metabolic secunder; flavonoid, alkaloid, terpenoid, and saponin. The result of phytochemistry secreening test to extract methanol to metabolic secunder was negative. Antimicrobial test result showed that the extract of som jawa root  is active againts microbes E.coli. Measurement is based on the test zone diameter of the clear zone generated, where . coli has the highest diameter of the clear zone compared with the others microbes such as Staphylococus aureus, Bacillus sp, Serratia sp, and Candida albicans. The values of the clear zone of each microbe  in order are 1,1 cm, 1 cm, 0,95cm, and 0,9 cm. These value were obtain at a concentration of 10%.
EFIKASI INSEKTISIDA NABATI EKSTRAK BUNGA KEMBANG BULAN (Tithonia diversifolia A. Gray) TERHADAP HAMA ULAT GRAYAK (Spodoptera litura F.) PADA TANAMAN SAWI DI LABORATORIUM Azwana Azwana; Siti Mardiana; Rizky Raudatul Zannah
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.v5i2.1988

Abstract

Armyworm (Spodoptera litura) is one of the pests that attack vegetable plants in Indonesia. The attack resulted in the leaves of the plant being cut and perforated so as to reduce productivity and even crop failure The aim of the study was to determine effectiveness of Tithonia diversifolia extract as a vegetable insecticide to control the Spodoptera litura in mustard plants at the laboratory. The study used a completely non-factorial randomized design consisting of 5 treatments, K0 = no extract (control), K1 = concentration 4%, K2 = concentration 6%, K3 = concentration 8%, K4 = concentration 10%. Parameters observed were morphological changes and insect behavior, percentage of larval mortality, percentage of pupae and imago formed. The results that Tithonia diversifolia extract can control Spodoptera litura. The result of 8% (K3) Tithonia diversifolia extract effectively controls Spodoptera litura. The highest percentage of larval mortality of Spodoptera litura (80%) was found in the treatment of K3 (concentration 8%) at observation 9 HSA and the lowest mortality was found in K1 (concentration 4% with an average 67.5%. The lowest formation of pupa and imago in the K3 treatment was 20 and 29.17%
PENGARUH KADAR ASAM SULFAT PADA HIDROLISIS TANDAN KOSONG KELAPA SAWIT (TKS) DAN WAKTU FERMENTASI TERHADAP KADAR BIOETANOL YANG DIHASILKAN Sartini sartini; Rita Fitriani; Rosliana Lubis
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.v4i2.1191

Abstract

The effect of sulphuric acid fermentation of processed palm oil bunch hydrolysis and on ethanol and sugar production was conducted. The aim was to investigate the hydrolytic optimum required by Saccharomyces cerevisiae for ethanol and sugar production. About 12.5 g powdered palm oil bunch was used in this experiment. The powder was hydrolized several times using sulphuric acid in several concentration. Sugar, product of  hydrolysis, was detected every one hour using spectrophotometer. The sugar was fermented by Saccharomyces cerevisiae and incubated for several days. Results showed that 2-4% sulphuric acid was oprimum concentration for 30 g/L sugar production. The highest ethanol production 4.94% occurred after two days fermentation.
HUBUNGAN KEBIASAAN MEROKOK TERHADAP SMOKER MELANOSIS PADA SISWA SMA HKBP SIDORAME MEDAN Green Juninas Simbolon; Sartini Sartini; Ida Fauziah
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.v3i1.810

Abstract

This reseacrh was conducted to determine the relationship between smoking and oral melanosis. The samples were all of male students of Sidorame high school aged 15-17 years. Data were obtained by examining volunteer’s gum and asking them to fill in the questionners given. The result showed that there were strong relationship between smoking and melanosis (r = 0.887) furthermore the R value is 0.94 which concluded that smoking contribution smokers melanosis is 94%.
KEANEKARAGAMAN JENIS MAKROZOOBENTOS DIMUARA SUNGAI NIPAH KECAMATAN PERBAUNGAN KABUPATEN SERDANG BEDAGAI SUMATERA UTARA Lestari Lidya Octaviani Siamtupang; E. Harso Kardhinata; Hanifah Mutia ZNA
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.v4i1.969

Abstract

This research was conducted to determine the species diversity of macrozoobenthos and determine the condition of physical and chemical factors in the waters of estuary river in  Nipah Village Perbaungan District Serdang Bedagai Sumatera Utara. The result of diversity of macrozoobenthos obtained 28 species with one phylum, 2 class, 7 orders, 18 families and 20 genera. Measurement of physical and chemical factors waters obtained an average pH 7 both ebb and tide conditions; in conditions of salinity waters receded an average of 0 and at high tide the average of 5; the ebb and tide conditions an average temperature of 27-30°C; Average current speed 10,5-19,1 cm/s; Brightness average water 14-16,3cm; and an average depth of 40,3-150cm. Values obtained by the abundance of species which are 3378-5322 ind/m2. Macrozoobenthos types that dominate the river mouth Nipah are gastropods. Values Diversity Index (H ') macrozoobenthos of 2.152 to 2.762 were classified into well water. Uniformity index (E) showed a value of 0.397 to 0.532 (deployment is not uniform or uneven). Value Dominance Index (C) showed a value of 0.074 to 0.170 (the dominance of low or no kind dominance). In general, relatively good water conditions and suitable for life macrozoobenthos.
Gambaran Penyakit Demam Berdasarkan Umur dan Jenis Kelamin Pasien Rumah Sakit Haji Medan Henny Yuslina; E. Harso Kardhinata; Sartini sartini
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 2, No 2 (2016): Februari
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v2i2.801

Abstract

The purpose of this research was to determine whether there is a relationship of senile cataract with blood sugar levels for people with diabetes who checked in BKIM (Balai Kesehatan Indera Masyarakat) Medan. Research was done through two stages, blood sampling and examination of blood glucose levels and data analysis. The patient's blood is taken at any time from the patient's fingertip. Data were analyzed calculated the correlation relationship where the cataract as the parameters x and y are the blood sugar levels. Correlation calculation results indicate the number r = 0:46, which means there is less close relationship between cataracts and blood sugar levels but percentages show increased in the percent of patients with both cataracts relation to blood sugar levels as well as cataracts with age. From a study of 60 patients aged 45-65 years who suffer from cataracts are less significant association between cataract with blood sugar levels.
PENGELOLAAN LIMBAH MINYAK PELUMAS SEBAGAI UPAYA PENGENDALIAN PENCEMARAN LINGKUNGAN Veza Azteria; Ruslan Abdul Gani
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 6, No 2 (2020): Februari
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v6i2.2725

Abstract

PT. Astra International Tbk recorded the demand for the use of lubricants as one of the spare parts components sought by Honda motorcycle consumers to continue to increase where at the end of 2015 lubricant parts sales were recorded at 18,596,521 lubricants and each month on average they needed around 1,149,125 lubricant (Gani, 2016). In the case of waste producers, B3 waste management can be transferred to other parties accompanied by documents showing evidence of delivery of B3 waste, in accordance with the contents of Article 32 Paragraph (2) Government Regulation Number 101 of 2014. The meaning transferred here can be interpreted as being sold to another party, because the waste of used lubricating oil still has economic value. This study aims to determine the process of managing lubricating oil waste at Astra Motor Balikpapan. This study was designed as a descriptive observational evaluation study conducted cross sectionally by observing, analyzing, observing and processing data and information that has been systematically collected. The results showed that the management of used lubricant waste at Astra Motor Balikpapan was quite good, but there were some things that needed to be improved including control from Balikpapan BLHD supervision, workshops and continuous counseling and the absence of strict administrative sanctions.

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