BIOLINK (Jurnal Biologi Lingkungan, Industri, Kesehatan)
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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<![CDATA[EFFECT OF FERMENTATION OPTIMIZATION WITH PH CONTROL ON ACTINOMYCETES ISOLATE AS ANTIBACTERIAL STAPHYLOCOCCUS AUREUS ]]>
<![CDATA[Joanne, Anastasia]]>;
<![CDATA[Bahar, Meiskha]]>;
<![CDATA[Muktamiroh, Hikmah]]>;
<![CDATA[Setyaningsih, Yuni]]>
<![CDATA[ BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 10 No. 2 (2024): February ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/biolink.v10i2.10529
<![CDATA[Actinomycetes are Gram-positive bacilli noted for their secondary metabolites that are effective as antibacterials. Production of the antibacterial compounds is determined by nutrition, temperature, pH, and fermentation time. This study aims to study the antibacterial activity of Actinomycetes isolates from Bogor Botanical Gardens soil by fermentation optimization with pH control on the 3rd, 4th, and 5th day against the growth of Staphylococcus aureus bacteria. Actinomycetes isolates were inoculated on Starch Casein Agar (SCA) and fermented in liquid media containing 7 g glucose, 14 g mannitol, 14 g peptone for 5 days with the pH controlled within the range of 6.2–6.8. Antibacterial test method against S.aureus using well diffusion method with Nutrient Agar (NA) media. The inhibition zone diameter was measured every 24 hours and and the results obtained were 3.73 mm; 6.05mm; and 5.34mm. Those data were analyzed using the Kruskal-Wallis test and then continued with the Mann Whitney test which had significant differences between groups. The conclusion of the study is Actinomycetes isolates have antibacterial potential against the growth of S. aureus with the largest average diameter of inhibition zone in the 4th day fermentation group, which had moderate inhibition.]]>
<![CDATA[ACTIVITY TEST OF BESTSELLING MOISTURIZERS ON SHOPEE IN TREATING SKIN PROBLEMS ]]>
<![CDATA[Dasopang, Eva Sartika]]>;
<![CDATA[Siahaan, Desy Natalia]]>;
<![CDATA[Saputri, Muharni]]>;
<![CDATA[Irnabila, Salsa]]>
<![CDATA[ BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 10 No. 2 (2024): February ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/biolink.v10i2.10704
<![CDATA[Shopee is an e-commerce widely used by Indonesians to buy and sell products and can shop safely. Shopee shows that in 2020, moisturizers was the top selling product in the beauty category. The moisturizers sold have different ingredients, come from many brands, and have different price points. The objective of the study is to compare the 3 best-selling moisturizers in the shopee category that are more effective in improving skin problems. This study was a quantitative study using a true experimental design with a posttest only control group design consisting of 4 groups, namely 3 groups using 3 best-selling moisturizer brands based on the shopee category and 1 control group. The sample of this study was selected based on the inclusion criteria consisting of 20 volunteers and the test was conducted for 4 weeks of application on the volunteers' skin by looking at the measured parameters of moisture, pores, blemishes and wrinkles. The results showed that the activity test of moisturizer A had a faster recovery in increasing moisture content (54.8%), shrinking pore size (23.8%), reducing blemishes (19.9%) and wrinkles 28.9%.]]>
<![CDATA[ANALYSIS OF MINERAL CONTENT IN ZAM-ZAM WATER CIRCULATION IN PADANGSIDIMPUAN CITY ]]>
<![CDATA[Harahap, Fatma Suryani]]>;
<![CDATA[Pohan, Heni Mulyani]]>;
<![CDATA[Siregar, Rabiyatul Adawiyah]]>;
<![CDATA[Elisa, Elisa]]>;
<![CDATA[Lubis, Jalilah Azizah]]>;
<![CDATA[Latifah, Nur]]>
<![CDATA[ BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 10 No. 2 (2024): February ]]>
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DOI: 10.31289/biolink.v10i2.10933
<![CDATA[This research was motivated by the existence of Zam-zam water trade in Padangsidimpuan City, while the Saudi Arabian government prohibited the export of Zam-zam water. This causes people to suspect that the quality of Zam-zam water circulating in the market is not the same as the Zam-zam water found in Mecca. Therefore, research needs to be carried out to answer these concerns. This research aims to analyze the mineral content of labeled packaged Zam-zam water circulating in Padangsidimpuan City compared with Zam-zam water brought from Mecca City. The mineral concentrations tested were sodium and chloride. This research uses laboratory experimental methods, including quantitative analysis. According to the type of research, the data analysis technique used is to compare the concentration of each mineral in the water labeled Zam-zam with the mineral concentration in the Zam-zam water used as a control. The research results showed that Zam-zam water obtained from Mecca City contained 42.4 mg/L chloride, 2.06 mg/L sodium, while the labeled Zam-zam water circulating in Padangsidimpuan, namely sample 1, contained 160.7 mg/L chloride. sodium 2.06 mg/L in sample 2 contains 50.5 mg/L chloride, sodium 2.17 mg/L. The three Zam-Zam samples circulating in Padangsidimpuan that have been tested show that the quality of Zam-Zam water is suitable for consumption based on determining a good water quality test, namely at the suitability threshold.]]>
<![CDATA[INVENTORY OF INVASIVE INSECT SPECIES IN COBAN TALUN, BATU CITY ]]>
<![CDATA[Saputri, Priska Anggun]]>;
<![CDATA[Putri, Jihan Fahira Adinda]]>;
<![CDATA[Zahwa, Amirah Rusdanti]]>;
<![CDATA[Prasetyaningsih, Dyah]]>;
<![CDATA[Afifah, Nurul]]>;
<![CDATA[Denatalia, Sherlita Crisne]]>;
<![CDATA[Fardhani, Indra]]>
<![CDATA[ BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 10 No. 2 (2024): February ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/biolink.v10i2.11010
<![CDATA[Insects are the greatest number of animal species on earth. Invasive species are insects that are non-native to a particular area, and negatively affect other organisms in their ecosystem. This study examines the diversity of invasive insect species with the aim of determining the diversity of invasive insect species found in Coban Talun, Batu City, effective and sustainable invasive insect control strategies, as well as conservation actions that need to be taken to maintain the balance of the ecosystem in Coban Talun. This study used a descriptive method using exploration techniques at three observation locations to collect data. This method used was observation of the focus of the problem under study, namely invasive insects which are the object of research. The data collection technique was carried out by exploring the location under study by observing, documenting, describing and identifying specimens using various literature. The results of the study obtained were the discovery of several types of invasive insects including black cockroaches (Phyllodromica maculata), large heath butterflies (Coenonympha tullia), green grasshoppers (Tettigonia viridissima), flies (Musca domestica), Mexican bean beetles (Epilachna varivestis), and soldier beetles (Rhagonycha recta). Invasive types of insects need population control by using natural insecticides so that the ecosystem in Coban Talun remains balanced.]]>
<![CDATA[THE INFLUENCE OF WATERFALL DISTANCE ON BRYOPHYTES DIVERSITY IN THE COBAN RONDO WATERFALL AREA, PUJON, MALANG ]]>
<![CDATA[Salsabila Rofifah]]>;
<![CDATA[Ilmiatunnisa, Rahmatin]]>;
<![CDATA[Hakimah, Wardatul]]>;
<![CDATA[Tias, Anggi Kusumaning]]>;
<![CDATA[Rahmawan, Agus Rizki Dwi]]>;
<![CDATA[Agustin, Dhiva Ayu]]>;
<![CDATA[Fardhani, Indra]]>
<![CDATA[ BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 10 No. 2 (2024): February ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/biolink.v10i2.11014
<![CDATA[Bryophytes is one of the various plant groups that have an important role in biodiversity. Bryophytes have an essential role in environmental ecology, including mosses contributing to the nutrient and water cycle and the carbon exchange cycle. This research aims to determine the effect of waterfall distance on bryophyte diversity in the waterfall area. This research uses an exploratory descriptive method with data collection locations at Coban Rondo Waterfall, Pujon District, Malang Regency. The research was carried out by collecting data directly in the field by observing and exploring according to the conditions at the research location. The objects in this research are classes bryophytes that grow around the waterfall area by creating three plots measuring 5m x 5m with the installation at the wet zone which is located in the waterfall area <25 m, the humid zone which is 25-50 meters from the waterfall, and the dry zone which is more than >50 meters from the waterfall. Each bryophyte found in a single plot in three zones will be analyzed by considering the factors of temperature, humidity, light intensity, and soil pH. The results of the study showed that there was an influence of waterfall distance on bryophyte diversity. The closer the location where bryophytes grow to a waterfall, the more diverse the number of species.]]>
<![CDATA[BIODIVERSITY OF ANGIOSPERMS IN SUMBERAWAN TEMPLE, SINGOSARI, MALANG DISTRICT ]]>
<![CDATA[Tunazjah, Savina]]>;
<![CDATA[Zahrani, Ifta Alifia]]>;
<![CDATA[Nisa, Khoirun]]>;
<![CDATA[Maulida Dewi, Siti Zulaika]]>;
<![CDATA[Prasetya, Akmal Rizky]]>;
<![CDATA[Nabila, Irbah Jihan]]>;
<![CDATA[Manggalgita, Cornellia Wening]]>;
<![CDATA[Fardhani, Indra]]>
<![CDATA[ BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 10 No. 2 (2024): February ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/biolink.v10i2.11025
<![CDATA[Sumberawan Temple is a tourist area that is inextricably linked to diversity of plants. One of them is angiosperm plants. Angiosperms occupy about 90% of all plant species and have 250,000 species. The objective of this study is to determine the biodiversity of angiosperm plants in Sumberawan Temple area which is located in Singosari, Malang Regency. The research method used was vegetation analysis using a single plot measuring 20 x 20 m2. The shape of the plot used wass square with an area of 400 m2. There were 12 types of angiosperm plant species in 9 different families. To determine the species richness index using the Margalef index, the diversity index using the Shannon Weinner index and the evenness index using the Evenees index. The findings indicated that species richness was in the low category, diversity and evenness were in the high category. It is due to the fewer species in the area but the greater variety of species in Sumberawan Temple area. The diversity of species indicates the number of species that coexist.]]>
<![CDATA[CONSUMER KNOWLEDGE, ATTITUDE, ENVIRONMENT AND INCOME TOWARD COOKING OIL WASTE ]]>
<![CDATA[Azteria, Veza]]>;
<![CDATA[Sayyid M, Muhammad]]>;
<![CDATA[Handayani, Putri]]>;
<![CDATA[Angeliana K, Devi]]>
<![CDATA[ BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 10 No. 2 (2024): February ]]>
Publisher : <![CDATA[Universitas Medan Area ]]>
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DOI: 10.31289/biolink.v10i2.11147
<![CDATA[Used cooking oil is waste oil that comes from a type of cooking oil that has been used repeatedly. If not managed properly, it can become a source of environmental pollution. Managing used cooking oil still needs to be in a good category. Preliminary studies from this research found that as many as 60% of people in the Cengkareng Village area, West Jakarta, need to manage used cooking oil properly. This research aims to determine factors related to knowledge, attitudes, income and environment in managing used cooking oil. The sample used was 141 homemakers using purposive sampling. The data collection methods used were interviews and observation. This research uses independent variables (Knowledge, Attitudes, Income Level, and Environment) and dependent variables (Used cooking oil management behaviour). The analysis used is descriptive analysis with the chi-square test. Based on the research results, it was found that the highest proportion of used cooking oil management behaviour was poor (51.1%), good knowledge (54.6%), negative attitude (60.3%), sufficient income level (81.6%), and bad environment (93.6%). %). There is a relationship between knowledge (p-value = 0.001) and community behaviour in managing used cooking oil and a relationship between attitude (p-value = 0.001) and behaviour in the community driving used cooking oil. There is a need for interaction and cooperation between societal stakeholders to improve public awareness of cooking oil management to create a zero-waste environment.]]>
<![CDATA[EFFECT OF COMBRETUM INDICUM LEAF EXTRACT ON BLOOD SUGAR LEVELS AND PANCREAS HISTOLOGY OF ALLOXAN INDUCED MICE ]]>
<![CDATA[Pertiwi, Anggita Endar]]>;
<![CDATA[Aryani, Retno]]>;
<![CDATA[Rosadi, Imam]]>;
<![CDATA[Nugroho, Rudy Agung]]>
<![CDATA[ BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 10 No. 2 (2024): February ]]>
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DOI: 10.31289/biolink.v10i2.11159
<![CDATA[Diabetes is a health problem that affects more than half a billion people in the world. Several plants are known to have anti-diabetic activity, one of which is Dutch jasmine (Combretum indicum). This research was conducted to determine the effect of Combretum indicum leaf extract on blood sugar levels and histology of islets of Langerhans in mice. A total of 36 male mice aged 6-8 weeks were divided into 6 treatment groups, namely normal control (KN) without treatment; negative control (K) with alloxan treatment; positive control (K+) with alloxan and glibenclamide treatment; P1 treated with alloxan and Combretum indicum leaf extract at a dose of 100 mg/kgBW; P2 with treatment with alloxan and Combretum indicum leaf extract at a dose of 200 mg/kgBW; P3 with alloxan treatment and Combretum indicum leaf extract at a dose of 200 mg/kgBW. Mice that have been induced by alloxan will be treated with leaf extract and glibenclamide for 20 days. Blood sugar levels 3 days after alloxan induction were checked and checked again on the 10th and 20th days of treatment by taking blood through the blood vessels in the mice's tails and then measuring them using a glucometer. The pancreas was dissected on the 20th day and pancreatic histology preparations were made for histological analysis. The results of this study indicate that Combretum indicum leaf extract has antihyperglycemic effects by protecting islets of Langerhans cells from alloxan-induced oxidative stress.]]>
<![CDATA[ANTIBIOFILM ACTIVITY OF MANGOSTEEN (Garcinia mangostana L.) LEAF EXTRACT AGAINST COLLECTION OF BACTERIAL ISOLATES FROM DIABETIC ULCERS ]]>
<![CDATA[Gubali, Derina Dwifrila Ridhani]]>;
<![CDATA[Rasdianah, Nur]]>;
<![CDATA[Akuba, Juliyanty]]>;
<![CDATA[Abdulkadir, Widy Susanti]]>;
<![CDATA[Uno, Wiwit Zuriati]]>
<![CDATA[ BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 10 No. 2 (2024): February ]]>
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DOI: 10.31289/biolink.v10i2.11185
<![CDATA[Mangosteen (Garcinia mangostana L.) is a plant that contains many benefits and has the potential to be a medicinal plant in treating various diseases. Mangosteen leaves contain flavonoids, saponins, tannins, alkaloids and terpenoids which are known to have antibacterial and antibiofilm properties. This anti-biofilm agent is an alternative treatment for diabetic wound infections where cases of antibiotic resistance have increased. One of the causes of resistance is the biofilm formed by infectious bacteria. This research is a type of laboratory experimental research which aims to determine the anti-biofilm activity of mangosteen leaf extract against biofilms formed by a collection of bacterial isolates from diabetic wounds. The antibiofilm activity test carried out consisted of a cell attachment prevention test, a biofilm formation inhibition test, and a biofilm destruction test using the crystal violet staining method using the tube method and measuring optical density values on a UV-Vis spectrophotometer. The concentrations of mangosteen leaf extract used are 60%, 80% and 100% as well as control – and control +. The results of the antibiofilm test showed that mangosteen leaf extract had the best activity in inhibiting biofilm formation, preventing cell attachment, and destroying biofilm, respectively. The three most optimal activities were found at a concentration of 100%, with an inhibition percentage of 50.51%, prevention of 32.56%, and destruction of 5.63%.]]>
<![CDATA[THE POTENTIAL UTILIZATION OF RASAU FIBER (Pandanus helicopus) AS AN ALTERNATIVE NON-FOOD INDUSTRY MATERIAL TOWARDS A CREATIVE ECONOMY ]]>
<![CDATA[Nur A’in, Latifah]]>;
<![CDATA[Jumrodah]]>;
<![CDATA[Supriatin, Atin]]>
<![CDATA[ BIOLINK (Jurnal Biologi Lingkungan Industri Kesehatan) Vol. 10 No. 2 (2024): February ]]>
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DOI: 10.31289/biolink.v10i2.11195
<![CDATA[Pandanus helicopus is one of the fibrous plants that is considered a nuisance so that its utilization is still lacking. Meanwhile, P. helicopus's fiber has the potential to be used in industry, especially in the manufacture of food brushes. The objective of this study is to identify the potential of P. helicopus's fiber, which is used as an alternative to non-food industrial materials, especially brushes that are halal toward the principle of creative economy. This study is experimental research by combining two methods, there are exploration and experiment laboratory. The results showed that P. helicopus leaf fibers have the characteristics of fibers that are quite fine, strong and elastic. Based on the laboratory tests, it was found that fibers became stronger and finer when given immersion treatment in NaOH solution with the most effective concentration of 7.5% with the test results of a fineness level of 2462.88 Tex, a tenacity value of 145.07 mN/Tex and 14.80 gf/Tex, and fiber elasticity of 19.56%. The characteristics of P. helicopus leaf fiber has the potential to be used as an alternative material in the industrial field, especially in the manufacture of halal plant fiber brushes. The utilization of P. helicopus's fiber in industry can be a creative innovation that can realize the principles of creative economy.]]>
