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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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KEANEKARAGAMAN JENIS MANGROVE DI PANTAI MUTIARA DESA KOTA PARI KECAMATAN PANTAI CERMIN KABUPATEN SERDANG BEDAGAI PROVINSI SUMATERA UTARA Sina sina; Retna Astuti Kuswardani; Jamilah Nasution
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 2, No 1 (2015): Agustus
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v2i1.774

Abstract

This Research on the diversity of Mangrove species in Pantai Mutiara Pari Village, Pantai Cermin Subdistrict, Serdang Bedagai Regency, North Sumatera Province was conducted in October s.d November 2012. The objective of this research is to know the diversity of species and mangrove vegetation based on growth level. The research method is explorative survey technique method. The sample collection for the research vegetation data consisted of observation plots with a total of 12 plots derived from 3 transects. The results of the study were 6 species of mangroves: Avicennia marina, Bruguiera sexangula, Rhizophora apiculata, Rhizophora stylosa, Rhizophora mucronata, and Nypa fruticans, belonging to 3 families namely Avicenniaceae, Rhizophoraceae, and Arecaceae. From the analysis, it is known that Avicennia marina, Rhizophora apiculata and Rhizophora stylosa species dominate the coastal area of Pantai Mutiara Desa Kota Pari Pantai Pantai Cermin. Based on the analysis of data obtained, the index of diversity (H ') of mangroves on the beach is low, ie the seedlings H' = 0.87, the H1 = 1,34 and the H '= 1.20. This indicates that the type of mangrove contained in the beach is small.
PENGARUH KESEIMBANGAN FOREMILK DAN HINDMILK DENGAN POLA DEFEKASI BAYI YANG MENDAPATKAN ASI EKSKLUSIF DI DESA SUKARENDE Debora Paninsari; Latifah Nurhayati
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.
STRUKTUR KOMUNITAS MAKROZOOBENTOS DI KAWASAN REHABILITASI MANGROVE DAN MANGROVE ALAMI DI KAMPUNG NIPAH KABUPATEN SERDANG BEDAGAI SUMATERA UTARA Rabiah Rabiah; E. Harso Kardhinata; Abdul Karim
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.v3i2.844

Abstract

Research on the community structure of macrozoobenthos in the area of mangrove rehabilitation and mangrove naturally in Kampung Nipah Bedagai Serdang, North Sumatra was aim to determined the community structure of macrozoobenthos with the inventory and identification of the types of macrozoobenthos at the sites. The method used in this research is descriptive method by determining and manufacture of sampling points with purposive sampling method. The results showed that macrozoobenthos were found grouped in three classes of Bivalves, Gastropods, and Polychaeta with the total number of individuals as much as 775 individuals. Group class that has the number of families and the highest number of species are Gastropods (19 families and 29 species), followed by Bivalves (6 families and 13 species). Polychaeta only has one family and one spesies. Diversity index (H ') of the study sites showed a value of 2.37 with the medium category. Value uniformity among the sites is 0,63 which means that the distribution of individuals of each type tends to evenly at each station and observation points.
SKRINING FITOKIMIA DAN UJI ANTIMIKROBA EKSTRAK KASAR BAWANG BATAK (Allium cinense) TERHADAP BAKTERI Staphylococcus aureus DAN Escherichia coli Siti Rubiatik; Sartini Sartini; Rosliana Lubis
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 2, No 1 (2015): Agustus
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v2i1.755

Abstract

The purpose of this research is to determine the composition of secondary metabolites of crude extract “bawangbatak” (Allium  cinense) and anti-microbial properties of the extract against Staphylococcus aureus and Escherichia coli. This research was conducted in three (3) stage, stage I  by the manufacturing of crude extract of garlic bulbs “bawangbatak”, Allium cinense, through maceration method using a solvent n-hexane and methanol. In stage II, screening fitokimia, that is identification of secondary metabolites (alkaloids, flavonoids, terpenoids and steroids) to the crude extract of tuber “bawangbatak”, Allium cinense, and phase III, test bioktifitas crude extract bulb of  “bawangbatak” Allium cinense in the form of extracts antimicrobial properties against Staphylococcus aureus and Escherichia coli extract using the concentration variation of 0%, 1%, 5%, 15%, 20%, and 25% and incubation at 370C for 24 hours. The results showed that secondary compounds was dominated by flavonoids, steroids, terpenoid and tannins. While at the test screening phytochemicals extra n-hexane showed no secondary metabolites, test bioktivitas against bacteria have inhibitory at a concentration of 15% with inhibition zone 14 mm in bacteria Escheriachia coli and 10 mm in bacteria Staphylococcus aureus this indicates onion extract  of “bawangbatak”  has the ability as an anti-microbial.
UJI EFEKTIVITAS DAUN PANDAN WANGI (PANDANUS AMARYLLIFOLIUS ROXB.) SEBAGAI ANTIBAKTERI TERHADAP SALMONELLA TYPHI Priska Nancy Claudia Bali; Ahmad Raif; Setia Budi Tarigan
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.v6i1.2218

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.
DETEKSI BAKTERI GENUS VIBRIO SEBAGAI CAUSATIVE AGENT PADA IKAN LELE SANGKURIANG (CLARIAS GARIEPINUS VAR. SANGKURIANG) DI KOTA TASIKMALAYA Vita Meylani; Rinaldi Rizal Putra
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.v5i1.1689

Abstract

Sangkuriang catfish (Clarias gariepinus var Sangkuriang) is the main commodity that widely cultivated in Tasikmalaya City. However, farmers have difficulty because of the disease which causes death in fish. High mortality is suspected as a vibriosis disease by genus Vibrio because redness wounds on dead fish. The purpose of this study is to know the genus Vibrio which causes of disease in Sangkuriang catfish. 10 samples of fish were taken from Sangkuriang catfish pond culture in Kelurahan Kersanagara Tasikmalaya City which were potentially suspected of vibriosis disease. Isolation of bacteria were done on TCBS medium. Bacterial isolates were collected from fish lesion on the body surface, liver, and kidneys of catfish. Isolation were able to gained 21 isolates and then 5 isolates (VK1, VK5, VK7, VK17, and VK21) were selected based on colony morphology and Postulates Koch’s were tested. The results showed that the clinical symptoms of catfish infected by vibriosis were redness lesions/ulcers on the body surface, hemorrhagic, fluid inside stomach, and fin eroded with redness wound. Bacterial identification through biochemical test revealed the causative agent of catfish disease at brackish pond area were bacteria of the genus Vibrio (VK 1, VK 5, and VK 7), Vibrio vulnificus (VK 17 and VK 21).
PEMANFAATAN KITOSAN DARI LIMBAH CANGKANG KERANG BULU(Anadara inflata) SEBAGAI BAHAN PENJERNIH AIR SUNGAING DARI LIMBAH KULIT DURIAN Rosliana Lubis; 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.v1i1.16

Abstract

The title of  this study is the utilization of chitosan from shellfish waste as water purifier. The purpose of the study is to utilize coagulant of shellfish waste in water treatment proes into clear water. The research variabel are the concentration of chitosan 1,3,5,7, and 9 g/l. The particle size of chitosan used in this research is 150 mesh. The time consume  8 hours for purification process. The result showed that 9 g/l chitosan shell waste is effective to water purification process. At a concentration of 9 g/l. Chitosan shellfish waste can produce clean water in complianee with health minister No. 416/MENKES/PER/IX/1990 about  water quality treatment.
EFEKTIVITAS BIOHERBISIDA DARI LIMBAH CAIR PULP KAKAO DALAM PENGENDALIAN BERBAGAI JENIS GULMA DI KEBUN MASYARAKAT KECAMATAN DELI TUA KABUPATEN DELI SERDANG Syarifah Widya Ulfa
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.v5i2.2007

Abstract

Weed known as plants that are able to adapt on the rhythm of growth of crops cultivation. The growth of weeds fast, high regeneration power when injured, and was able to bloom even though conditions are harmed by crop cultivation. Physically, weeds compete with the crop cultivation for space, light, and chemically for water, nutrients, gases. The research was done in the Kec.Deliserdang. The time of the research was carried out in May up to September 2018. Methods in this study using Random Design Group, which is composed of 5 treatment and 6 Deuteronomy. treatment with long fermentation liquid waste pulp. The level of intoxication bioherbicide against weeds was observed after 14 days after application assessment scoring system with cocoa. The results obtained in this study indicate that Fermented pulp of cocoa poisoning influence of weeds Ageratum conyzoides, Axonopus compresus, Borreria latifolia, Cyperus kylingia and Paspalum conjugatum. Fermentation efektiv on F3. There are 4 types of weeds that the level of toxicity is higher compared with long fermentation of 1, 2, and 4 weeks. Of the 5 types, bioherbisida pulp of cocoa is very poisoning the type level effective weeds Ageratum conyzoides until 14 days.
KUALITAS SPERMATOZOA DAN INDEKS FERTILITAS TIKUS PUTIH DEWASA (Rattus novergicus L.) SETELAH PEMBERIAN EKSTRAK DAUN WUNGU (Graptophyllum pictum. L.Grifft) Hendro Pranoto
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.v4i2.1201

Abstract

This research objective is to identify the effects of wungu leaf extract (Graptophyllum pictum L. Griff) on the fertility index and spermatozoa of normal morphology in male rat ( Rattus novergicus.L). Fifteen male and 45 female rats of 9 to 10 weeks old were used as research samples. The fifteen male rats were divided into five treatment groups of wungu extract dosage: control I (0mg/KgBW), control II (0.5ml olive oil), dosage 1 (100mg/KgBW), dosage 2 (200mg/KgBW), and dosage 3 (400mg/KgBW) for 60 days. The extract was given orally and each group consisted of three test rats as repetition. On the day 55 to day 60, each test male animal was mated with three female rats. After 60 days, an observation was done to 15 male and 45 female rats to identify fertility index. Normal spermatozoa morphological observation with microscope. The data obtained were tested by Analysis of Variance Test (ANOVA ? = 0.05) and Duncan’s Multiple Range Test (DMRT). Based on the observation and statistical analysis, it was found that wungu leaf extract of different dosages did not give significant effects on fertility index but have significant effects on spermatozoa of normal morphology. This was proven by the fact that the higher the dosage given, the worse the spermatozoa of normal morphology. Based on Linear Regression Analysis, it was found significant correlation between dosage variation extract of wungu leaf and fertility index, and number of normal spermatozoa.
PEMERIKSAAN KUALITAS AIR SUNGAI SEI KERA MEDAN DENGAN METODE SPEKTROPHOTOMETRI Emi Rachmi; Meida Nugrahalia; Abdul Karim
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.v3i1.811

Abstract

Sei Kera river which is located in the district of Medan Perjuangan, Medan, North Sumatra accross the settlements with 10 villages namely Tegal Rejo, Sidorame West I, Waterquality status,Water quality standard, Storet method.Sidorame West II, Sidorame EastI, Sidorame East II, Sei Kera Hilir I, Sei Kera Hilir II, Sei Kera Hulu, Heroes and Pandau Hulu which is occupied 93.328 people. This study uses quantitative analysis is the quality of water in Sei Kerariver from the result of water quality parameters include parameters TotalofSuspended Solidsd (TSS), Chrome 6+, Chlorine, Nitrite, Fluoride, Phosphate, Sulfates, Sulfides, Nitrates, Chemical Oxygen Demand (COD) and Detergents are made in 2 (two) points using purposive sampling method, the area of the river downstream at bridge on Mabar Street (point 1)and upstream bridge Cemara Street (point 2). Sampling is done within 3 (three) perod, and the data which has got is analyzed by spectrophotometry Method with approach criteria quality of water based on PP. 82 of 2001 on the Management of Water Quality and Water Pollution Control, the result is Sei Kera river from point 1 to point 2 can only meet Water Quality Standard Class III that the allocation can be used for fresh water cultivation for fish, animal husbandry, water to irrigate landscaping, and other uses that quality of water similar requirements to these purpioses.

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