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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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LARVICIDAL ACTIVITY OF TURMERIC (CURCUMA DOMESTICA) EXTRACT AGAINST AEDES AEGYPTI L. Indah Tri Susilowati; Tri Harningsih; Indra Ayu Vidyaningrum
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 8, No 1 (2021): August 2021
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v8i1.4353

Abstract

Indonesia occupies the top position as the country with the highest dengue cases in ASEAN. A variety of prevention dengue can be done which can be used chemicals. Chemical insecticides indeed provide effective results and optimal, but many negative impacts both on the environment and living organisms. The many negative effects of   chemical insecticides led to new research in the vector control safer, simpler, and environmentally sound. Control using biological insecticides (vegetable) is one of them. One of the plants that can be used as larvicides are turmeric (Curcuma domestica). Tumeric contains bioactive compounds such as essential oils, alkaloids, flavonoids, saponins potential as an alternative killer mosquito larvae. Researchers create 6 concentration turmeric extract (0g / L; 0.25 g / L, 0.5 g / L; 1g / L; 2g / L; 4g / L) of each concentration included 25 larval Aedes aegypti L. The data obtained were performed Shapiro-Wilk normality test and then test the hypothesis by Kruskal Walis and probit test. Results obtained LC50value is 2.084g/L or 0.208% (w/v). The results showed that tumeric extract (Curcuma domestica) is effective to kill the larvae Aedes aegypti L.
EFFECTIVENESS TEST OF BLACK CUMIN SEEDS (NIGELLA SATIVA) EXTRACT ON THE GROWTH OF KLEBSIELLA PNEUMONIAE AND PSEUDOMONAS AERUGINOSA BACTERIA Nadya Nazimuddin Putri; Linda Chiuman; Chrismis Novalinda Ginting; Ermi Girsang
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 7, No 2 (2021): February 2021
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v7i2.3702

Abstract

Black cumin seeds are known to have beneficial contents as antibacterial. This study aimed to determine the effectiveness of black cumin seed extract (Nigella sativa) on the growth of Klebsiella pneumoniae and Pseudomonas aeruginosa. The method used was the disc diffusion method. The ethanol extract of black cumin seeds gain by maceration method and was made into various concentration (5, 7.5, 10, 12.5, and 15)%. For positive control, ciprofloxacin disc were used and negative control used distilled water. The research model used was in vitro experimental research. The results showed that ethanol extract of black cumin seeds have antibacterial activity against Klebsiella pneumoniae with inhibition zone diameters (4.5, 6.7, 10.1, 11, 12.8) mm, Pseudomonas aeruginosa with inhibition zone diameters (7.5, 12, 12.6, 13.4, 15.6) mm, positive controls respectively (24.3 and 20.7) mm and negative controls (0). It can be concluded that black cumin seed extract has an inhibiting effect on the growth of Klebsiella pneumoniae and Pseudomonas aeruginosa.
THE STUDY OF TREE LEVEL IN ANGGOMATE WATERSHED AREA , SOUTHEAST SULAWESI Ikbal Ikbal; Aqmal Khaery; Fachruddin Fachruddin
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 8, No 1 (2021): August 2021
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v8i1.4581

Abstract

Anggomate River has ecological and economic value for the local community. Massive community activities in utilizing land in the Anggomate watershed area for plantation, inhabitation, and sand mining lands can cause the tree vegetation decline, even flood often occurs in Andowia region annually. The research method used was a quantitative method. Sampling was performed through a plot-transect method. The plots were placed on the downstream (Labungga Village river area), middle (Laronaga Village river area), and upstream (Andowia Village river area) regions. The study results showed that there are 35 tree species with the individual number of 64. The highest importance value index was obtained from Ficus benjamina L. at 29.38%, Anthocephalus cadamba (Roxb.) Miq) at 25.64%, and  Lansium domesticum Corr. at 16.81%. The dominance index of the tree species in the Anggomate river area was 0.971, which indicates that one of the tree species dominated this area, namely, Anthocephalus cadamba (Roxb.) Miq) (Roxb.) Miq). The diversity index in the Anggomate watershed area includes in high category (H’= 3.402 atau H’ > 3). The distribution index includes in the evenly distribution category due to obtaining closely approaching the value of 1 (E= 0.818).
ETHNOMEDICINE OF BAJO TRIBE COMMUNITY IN BANGKO VILLAGE, MAGINTI DISTRICT, WEST MUNA, SOUTHEAST SULAWESI Fachruddin Fachruddin; Musthamin Balumbi; Dustan Dustan
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 7, No 2 (2021): February 2021
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v7i2.4364

Abstract

This study aims to reveal the use of marine and coastal plants, and animals as medicine by Bajo Tribe society in Bangko Village, West Muna. The method used was an exploratory survey. Data were collected using in-depth interviews with 20 traditional healers selected by purposive sampling. The data obtained were analyzed descriptively. The result revealed that there were 39 species of plants and 5 species of animals used as medicine. The most widely used plant families were the Arecaceae and Poaceae, 3 species respectively, while animals from the families of Holothuriidae, Onuphidae, Pinnidae, Syngnathidae, and Tridacnidae, 1 species respectively. The most commonly part of plant used was leaves (50%), while for animal was parts of flesh and whole body were used 40% respectively. The most commonly used preparation and application were boiling and drinking. In conclusion,  Bajo people in Bangko Village with their maritime culture  use plants and animals in the marine and coastal environment to overcome various diseases and health problems, in addition using “baca-baca” method.
EVALUATION ON METHODS FOR IDENTIFICATION OF VIBRIO SP.: KAWAKAWA (EUTHYNNUS AFFINIS) BRINING SHREDDED AND CHITOSAN ADDITION AS PRESERVATIVE Purwaningtyas Kusumaningsih
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 8, No 1 (2021): August 2021
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v8i1.5011

Abstract

The kawakawa (Euthynnus affinis) brine salting that used to make shredded were preservative with salt. Salt addition has aim to inactivate of bacterial contamination. Obviously, bacteria is still capable of growing in kawakawa brine shredding Therefore, in this study chitosan was added as antibacterial in shredded processing. Vibrio sp., is one of common halophilic bacteria found in seafood. If this bacteria is consumed, it can cause serious problems in human health. The objective of this study was to evaluate the factors that affect in identifying Vibrio sp., on kawakawa brine shredding (C), shredded non-chitosan (FC) and shredded contain of chitosan (FC+). The methods evaluated were steps in enriching bacteria, culturing bacterial in selective media and analysing bacterial by API 20E kit. Enriching and incubation periods were needed by halophilic bacteria to adaptation in new environment. It was required to observe the bacteria characteristics' that would be isolated. Bacterial colonies were growth on Thiosulphate citrate bile salt sucrose (TCBS)  were not Vibrio sp., but confirmed as Pseudomonas luteola and Proteus vulgaris based on API 20E analysis. It was showed that TCBS media had some advantages in identifying Vibrio sp. In conclusion, to get the best result in identifying bacteria, at least two  or more methods were used to avoid misidentification.
ISOLATION AND CHARACTERIZATION OF IAA-PRODUCING RIZOSPHERE BACTERIA FROM RICE PLANTS (ORYZA SATIVA L.) IN KEDUNGPANI URBAN VILLAGE, SEMARANG CITY Sutrisno Sutrisno
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 8, No 1 (2021): August 2021
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v8i1.4556

Abstract

Rhizosphere bacteria live in the soil around plant roots. Various rhizosphere bacteria are able to produce the hormone Indole-3-Acetic Acid (IAA) which stimulates plant growth. This study aims to isolate and characterize IAA-producing rhizosphere bacteria in rice plants in the rice fields of Kedungpani urban village, Semarang city. Bacterial enumeration was carried out using the total plate count (TPC) method. The isolates obtained were characterized by observation of colony and cell morphology, gram staining, endospore staining, catalase test, and sugar fermentation test. The ability to produce the IAA hormone was tested using Salkowski's reagent. The enumeration results showed that the total bacteria in the sample was 2.9 x 105 CFU / g. A total of 10 isolates were obtained and were able to produce the IAA hormone with various concentrations. Isolates KP1, KP2, KP3, KP4, KP5, KP6, KP9, KP13, KP14, and KP15 produced IAA with concentrations of 3.389, 5.111, 3.000, 1.667, 1.944, 5.056, 5.444, 4.500, 5.056, and 10.833 ppm, respectively. The results showed that there were 5 isolates with the highest IAA concentrations, namely KP2, KP6, KP9, KP14, and KP15 which had the potential to be used as biostimulant agents for plants.
MACROFUNGI DIVERSITY IN MOUNT BURNI TELONG BENER MERIAH REGENCY ACEH PROVINCE Siti Nurchalidah; Zulfan Arico; Fitriani Fitriani
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 7, No 2 (2021): February 2021
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v7i2.3846

Abstract

Mount Burni Telong has a diversity of fungi that play an important role in the forest ecosystem. This study aimed to determine the types of macrofungi found in Mount Burni Telong and index diversity macrofungi found in Mount Burni Telong. The method used in this study was to use the pathway method by observing macrofungi along the hiking trail with a distance of 10 meters to the left and 10 meters to the right starting from an altitude of 1800 mdpl to an altitude of 2600 mdpl. Macroscopic fungi found were to identified and measured the physico-chemical parameters of the environment. Macroscopic fungi found were dominated by the Basidiomycota division and the Polyporaceae family. The results obtained were 31 macroscopic fungi from 2 divisions, 6 classes, 6 orders, 21 families, 26 genera, and 31 species. The most macroscopic fungi found in the Basidiomycota division, Agaricomycetes class, were 23 species and at least in the Ascomycota division, Pezizomycetes class, was as many as 1 species.
DISTRIBUTION PATTERN OF THE EXOTIC PLANT (SYNEDRELLA NODIFLORA (L) GAERTN) IN THE REHABILITATION ZONE, RESORT OF WONOASRI, MERU BETIRI NATIONAL PARK Yennita Dwi April Liana; Hari Sulistiyowati; Arif Mohammad Siddiq
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 8, No 1 (2021): August 2021
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v8i1.4876

Abstract

Exotic plants are plants that are intentionally or unintentionally included in an area. Based on the results of the 2020 survey, one of the exotic plants found in the Donglo Block Rehabilitation Zone area of Meru Betiri National Park (MBNP) is cinderella weed (Synedrella nodiflora). The objective of this study is to determine the distribution pattern and area of cover of exotic S. nodiflora plants in the research location. Data were collected using a combination method of systematic plot transects measuring 2 x 2 meters which were placed along the transect with a total of 415 plots. The data recorded were the coordinate position of each individual S. nodiflora and the area of the cover. Analysis of distribution pattern data using the Morisita index and visualized with a spatial distribution map using Geographic Information System (GIS). Coverage area analysis was carried out by calculating the percent cover of S. nodiflora. The results of the analysis of the Morisita index showed the value of Iδ = 7.13, which indicates that the distribution pattern of the plants is clustered. In addition, the presence of this species in the study area was occupied 41.7% or 0.85 ha of the total area of 2.04 ha. It shows that this species still did not dominate the area, so it can be said that this species has not yet become an invasive species category in the research location.
THE EFFECT OF COCOPEAT AND RICE HUSK PLANTING MEDIA HYDROPONICALLY ON THE GROWTH OF PALM OIL IN PRE NURSERY Aulia Juanda Djaingsastro; Hardiansyah Sinaga; Ranto Mangasi Sitorus
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 7, No 2 (2021): February 2021
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v7i2.4115

Abstract

Palm oil can produce high productivity which must be supported from several aspects, one of  them is a good and correct nursery. Palm oil nursery isusually carried out conventionally, namely planting using soil media. Hydroponic research using cocopeat and rice husks planting media on the growth of palm oil seeds in pre nursery has never been carried out. The objective of this study was to determine the growth of palm oil seedlings using the hydroponic method. This research was conducted in the STIPAP Medan greenhouse. This research was conducted from April to July 2018. This research was a non-factorial RAK, which consisted of four treatments, namely M0 (top soil), M1 (Cocopeat), M2 (rice husks), M3 (combination). Height, stem, number of leaves, dry and wet weight of roots and plants, root length were observed. Then data analysis with ANOVA with the continued test of 5% Duncan was performed. The results of the effect of cocopeat and rice husk media was there was no a significant effect on the treatment parameters of seed height, number of leaves, dry and wet weight of roots and plants, and root length.
AN OVERVIEW OF BRYOPHYTES DIVISION Nurmaini Ginting; Hanifah Mutia Z.N Amrul; Ferdinand Susilo
BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol 8, No 1 (2021): August 2021
Publisher : Universitas Medan Area

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31289/biolink.v8i1.4294

Abstract

Bryophyte is a non-vascular plant, consisting of three classes: mosses, hornworts, and liverworts. The body forms have a thallus, and some have a leaf-like organ. The class division of the Bryophyte division is base on anatomical and morphological traits, such as meristem tissues, stomata, and vascular tissues. M Bryophyte has no vascular tissue, but it has a capillary that has functions like xylem and commonly refers to as hydroid. Mosses and hornworts have stomata on the sporophyte part, while in the liverworts, stomata are not found. Hornworts have a basal meristem that has an unpredictable cleavage. Meristem on the mosses only divides up the formation of sporangial. In the liverworts, the apical meristem does not see. Members of the hornworts consider the most advanced because the meristematic phase is more prolonged, so that it is closer to the characteristics of Tracheophyta group.

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