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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 ANTIBAKTERI EKSTRAK DAUN SERAI WANGI (CYMBOPOGON NARDUS) TERHADAP BAKTERI PROPIONIBACTERIUM ACNES Winato, Brigad Mahardika; Sanjaya, Erfan; Siregar, Lisdawaty; Fau, Solinia Kifami Yohana Maria Vianne; Mutia, dr. Maya Sari
BIOLINK : Jurnal Biologi Lingkungan, Industri dan Kesehatan Vol 6, No 1 (2019): Agustus
Publisher : Program Studi Biologi, Fakultas Biologi 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.
TINGKAT DAN POLA DISTRIBUSI INFESTASI PENGGEREK BATANG JAGUNG OSTRINIA FURNACALIS (LEPIDOPTERA: CRAMBIDAE) DI PADANGSIDIMPUAN Permadi, Muhammad Agung; Harahap, Qorry Hilmiyah
BIOLINK : Jurnal Biologi Lingkungan, Industri dan Kesehatan Vol 6, No 1 (2019): Agustus
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v6i1.2093

Abstract

Ostrinia furnacalis Guenee as known as Asian corn stem borer is one of the main pests in corn cultivation practices in Indonesia. Besides Indonesia, these pests attack in other Asian regions such as Central Asia, East Asia, and also Australia. This study was aimed to measure the intensity of infestation and to analyze patterns of distribution of O. furnacalis in corn field. The observations of intensity and infestation distribusiton were held on 12 corn plantations owned by farmers in six sub-districts of Padangsidimpuan. Results showed that The lowest infested area of O. furnacalis larvae was 1.1%, while the highest was 4.31%. O. furnacalis larvae infestations at each plant in each plantations has a random distribution and the distribution was varies among corb fields.
UJI EFEKTIVITAS DAUN PANDAN WANGI (PANDANUS AMARYLLIFOLIUS ROXB.) SEBAGAI ANTIBAKTERI TERHADAP SALMONELLA TYPHI Bali, Priska Nancy Claudia; Raif, Ahmad; Tarigan, Setia Budi
BIOLINK : Jurnal Biologi Lingkungan, Industri dan Kesehatan Vol 6, No 1 (2019): Agustus
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v6i1.2218

Abstract

Pandanus amaryllifolius roxb leaves commonly used as food dditives which contain various compound groups namely alkaloid, saponins, flavonoids and tannins that have a role in antibacterial activity. This research is indicated to support the success of antibacterial in fragrant pandanus leaf plants against Salmonella typhi, one of the pathogenic bacteria. The antibacterial effectiveness test of ethanol-ethyl acetate extract (1: 1) of pandanus leaves which evaluated by the Kirby-bauer method and making the extract concentrations of 25%, 50%, 75%, 100%. The results showed that pandanus leaves extract had antibacterial effectiveness against Salmonella typhi with an average inhibition zone diameter of 11.6 mm; 14 mm; 14.3 mm; 15.3 mm; positive controls (Ciprofloxacin) 27 mm; and negative controls (aquadest) didn’t produce the inhibition zone of Salmonella typhi.
AKTIVITAS ANTIMIKROBA BAKTERI ASAM LAKTAT YANG DIISOLASI DARI MAKANAN TRADISIONAL FERMENTASI KHAS BATAK “NANIURA” Aloysius, Aloysius; Ulfa, Anjurniza; Situmorang, Anggita Kasih Fianti; Harmileni, Harmileni; Fachrial, Edy
BIOLINK : Jurnal Biologi Lingkungan, Industri dan Kesehatan Vol 6, No 1 (2019): Agustus
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v6i1.2165

Abstract

Lactic acid bacteria (LAB) could be isolated from various fermented food products. One potential source of LAB is traditional fermented food. The aim of the study was to isolate and investigate antimicrobial activity of LAB isolated from traditional Batak food, “naniura”. The LAB isolates were characterized by Gram staining, fermentation type and catalase test. The investigation of antimicrobial activity of LAB against pathogenic bacteria were conducted using disc diffusion method. The results showed that 6 isolates of BAL were successfully isolated namely BN1, BN2, BN3, BN4, BN5 and BN6 had characteristics of Gram positive, rod shaped and catalase negative. All selected isolate have heterofermentation type. Four isolates (BN1, BN2, BN5 and BN6) were able to inhibit S. aureus, E. coli and S. typhi with inhibition zone diameters ranging from 6,9 to 12,3 cm. Based on the result, it was concluded that LAB isolated from naniura has potential as a source of probiotics.
UJI EFEKTIVITAS ANTIBAKTERI EKSTRAK DAUN SIRSAK (ANNONA MURICATA LINN.) TERHADAP BAKTERI PROPIONIBACTERIUM ACNES Zai, Yurlina; Kristino, Agnes Yohana; Ramadhani Nasution, Sri Lestari; Natali, Oliviti
BIOLINK : Jurnal Biologi Lingkungan, Industri dan Kesehatan Vol 6, No 1 (2019): Agustus
Publisher : Program Studi Biologi, Fakultas Biologi Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v6i1.2244

Abstract

This research aims to determine the effectiveness of the antibacterial soursop leaf extract (Annona muricata L.). The method used is the agar diffusion method. The leaves were extracted by maceration method, using ethanol as a solvent. The soursop leaf extract obtained was then diluted using ethanol 96% at a concentration of 20%, 40%,60%, 80%. Positive control using clindamycin and negative controls using sterile aquadest. The research model used in this study is an experimental research model In Vitro of type. The results showed that soursop leaf extract had antibacterial effectiveness against Propionibacterium acnes with an average inhibition zone diameter of 9,7 mm; 13,7 mm; 15,7 mm; 16,3 mm; positive control (clindamysin) 21,0 mm; and negative control (aquadest) have no value tobe able to inhibit bacterial growth.
PENGELOLAAN LIMBAH MINYAK PELUMAS SEBAGAI UPAYA PENGENDALIAN PENCEMARAN LINGKUNGAN Azteria, Veza; Gani, Ruslan Abdul
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 | Full PDF (458.266 KB) | 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.
UJI AKTIVITAS ANTIBAKTERI EKSTRAK METANOL DAUN BAWANG BATAK (ALLIUM CHINENSE G. DON) TERHADAP STREPTOCOCCUS MUTANS DAN BACILLUS CEREUS SEBAGAI BAKTERI GRAM POSITIF Fahmi, Aliyah
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 | Full PDF (362.704 KB) | DOI: 10.31289/biolink.v6i2.2814

Abstract

Batak Onion (Allium chinense G. Don) is one of the species of Allium plant which is used as a flavor enhancer typical for North Sumatran Batak cuisine. In addition, the Batak onion is believed to be a health herbal remedy such as an antibacterial agent. This research aims to determine antibacterial activity of methanol extracts of Batak leeks (Allium Chinense G. Don) on Streptococcus mutans and Bacillus cereus as Positive Gram Bacteria.  The method  was the agar diffusion method. Methanol extracts of Batak leeks were diluted using Dimethyl sulphoxide (DMSO) with concentration variations (0.88, 1.66 and 2.5)%. DMSO also was used as negative blank. The research model was in Vitro experimental research model.  The results showed that methanol extract of Batak leek had antibacterial activity against S. mutans with inhibition zone diameter (5,10.5,12.7)mm and B. cereus with inhibition zone diameter (10,12.4 , 12.2)mm. The inhibition zone diameter (0) mm for the DMSO as negative blank.
RANCANG BANGUN PENGELOLAAN SAMPAH TERPADU ANTAR DAERAH BERBASIS PERMAINAN DINAMIS Nugraheni AM, Ika; Musthofa, Muhammad Wakhid
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 | Full PDF (474.575 KB) | DOI: 10.31289/biolink.v6i2.2418

Abstract

Joint waste management between regions that bordered each other can be one alternative solution of the problem of trash in Indonesia. Some areas have conducted cooperation in waste management, such as Sarbagita and Kartamantul. Dynamic game can be an alternative method in joint waste management between the regions. The purpose of this article is to design joint waste management between regions using the dynamic game theory framework approach. A dynamic game is a mathematical model that represents the conflict situation between the interested parties who want to make the best decision (in this case it is the city/district government) of a series of strategies that are possible by considering the existence of the various uncertainties at such situation. The discussion is done by assuming there are three areas of the bordering regoins and making some waste disposal regulations. Furthermore, the mathematical operations and simplification of the form of equation are executed to adapt to the design objectives. The results of the design in this approach are the invention of two mathematical equations describing the characteristics of dynamics waste stock in the adjoining regoins, and the cost to be incurred by each regions in managing its waste stock.
PERSEPSI MASYARAKAT TENTANG IMUNISASI MR PUSKESMAS GLUGUR DARAT KECAMATAN MEDAN TIMUR 2019 Nurhayati, Eva Latifah; Siregar, Debi Novita
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.v6i2.2824

Abstract

This study aims to find out how people's perceptions about MR immunization, as for the background of this research is because in the community there are many pros and cons in the implementation of MR immunization. This research is quantitative with a case study in Glugur Darat Health Center. The population is the community that has children aged 9 months to 15 years. Determination of the sample with quota sampling. With a total sample of 100 people. Data collection instruments with documentation, questionnaires and direct interviews which are then analyzed using simple linear correlation. From the results of this study indicate the public perception of MR Immunization in the Work Area of the Glugur Darat Health Center the majority of 71% do not understand about MR immunization. And from the results of the chi quare test to analyze the relationship between the perception of the community about MR immunization and the participation of MR immunization, the results obtained p = 0,000. Then there is a relationship between the public perception of MR immunization with the participation of MR immunization. For onshore glugur health centers to provide information to the public about MR immunization by providing counseling to the community, distributing leaflets about MR immunization.
PENGARUH KESEIMBANGAN FOREMILK DAN HINDMILK DENGAN POLA DEFEKASI BAYI YANG MENDAPATKAN ASI EKSKLUSIF DI DESA SUKARENDE Paninsari, Debora; Nurhayati, Latifah
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.v6i2.2764

Abstract

Mothers who exclusively breastfed their babies from 2011-2015 tended to increase. However, in breastfeeding there are still many maternal understandings that are lacking about foremilk and hindmilk. Foremilk and hindmilk are related to the duration of the baby breastfeeding, if the baby has not been obtained in a balanced manner can cause problems in the pattern of defecation of infants especially those aged 1-6 months. The purpose of study was to determine the effect of foremilk and hindmilk balance with defecation patterns of infants who received exclusive. The study design was cross sectional, with total sample 30 mothers who had infants aged 1-6 months and exclusively. The results showed the majority (96.7%) frequency of defecation of infants 1-8 times, consistency of soft stool (96.7%) and yellow stool (93.3%). Out of 30 respondents 53.33% of mothers had a balance of foremilk and hindmilk while breastfeeding and 86.66% of infants had normal defecation patterns. Chi-square test results did not influence the balance of foremilk and hindmilk with the pattern of defecation  with 30 respondents surveyed. This shows that the balance of foremilk and hindmilk has not affected the pattern of infant defecation including frequency, consistency and color of feces.

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