BIOLINK : Jurnal Biologi Lingkungan, Industri dan Kesehatan
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INNOVATION OF PEEL-OFF FACE MASKS MADE WITH SPIRULINA (Arthospira platensis) TOWARDS A CREATIVE ECONOMY
Get PDFFacial skin care, especially facial masks, has become part of the modern lifestyle, as the younger generation becomes increasingly aware of the importance of a healthy appearance. One natural ingredient that is widely used in skin care products is Spirulina platensis, a microalgae that is rich in nutrients and has various benefits, such as antioxidant, anti-inflammatory and antibacterial. This research aims to develop a peel off facial mask made from Spirulina platensis which is equipped with essential oil to improve the quality of skin care which is a major contribution to the development of natural cosmetics so that it can become an attractive alternative in the cosmetics industry. The method used in this research is an experimental method with five mask treatments. The results of the ANOVA test showed that there were significant differences in the aroma, color and consistency of the mask. Masks with Vanilla essential oil (F3) are preferred because of their more pleasant aroma, while masks with Sakura essential oil (F4) have the most preferred color. This research shows the potential of Spirulina platensis as an active ingredient in peel-off masks, which can be an attractive alternative in the cosmetics industry, as well as supporting a creative economy based on natural ingredients.
BIODEGRADATION OF STYROFOAM WASTE BY HONGKONG MEALWORMS (Tenebrio molitor)
No full textThis research aims to describe the ability of mealworms (Tenebrio molitor) to reduce styrofoam waste by observing the decrease in styrofoam weight and survival rate over one week. The method used is an experiment with a Completely Randomized Design (CRD) with 4 treatments (P0, P50, P100, P150) and 4 replications. The data was analyzed using descriptive statistics. The research stages include container preparation, larvae, stocking, feeding, and maintenance. The results show that the weight loss of styrofoam occurred at P50 (18.5%), P100 (22.75%), and P150 (36%). Meanwhile, the control group (P0) only experienced a weight loss of 1.5%. This indicates that the greater the number of T. molitor, the greater the weight loss of styrofoam. The highest survival rate for T. molitor was observed at P50, with a decrease in numbers of only 12.5%. At P150, the decrease was 16.8%, and at P100, it was 28.75%. This decrease is suspected to be caused by competition among T. molitor, population density, and a lack of nutrients despite the addition of supplementary feed. Based on the analysis of the results, it can be concluded that T. molitor is capable of reducing styrofoam waste, with the highest survival rate in the P50 group
OPTIMIZATION OF BAMBOO ROOTS PGPR DOSAGE ON MUNG BEAN GROWTH AND YIELD
Get PDFThe application of plant-growth promoting rhizobacteria (PGPR) offers an eco-friendly approach to enhancing crop growth and productivity. This study assesses the effects of PGPR derived from bamboo roots on growth metrics (e.g., stem diameter and branch count) and yield traits (e.g., pod count, fresh and dry pod weights, and harvested bean weight) of mung bean (Vigna radiata L.). Bamboo roots were selected as a unique source of PGPR because it fosters a favourable environment for beneficial microorganisms, enhancing nutrient absorption in plants. Conducted under controlled conditions, this experiment followed a completely randomized design, tested six PGPR dosage: 0 ml/polybag (H0), 10 ml/polybag (H1), 20 ml/polybag (H2), 30 ml/polybag (H3), 40 ml/polybag (H4), and 50 ml/polybag (H5) applied weekly. Results revealed significant growth promotion during the late vegetative phase, with H3 yielding optimal outcomes improved stem diameter, branch number, pod count, and seed dry weight. Higher dosages (H4, H5) negatively impacted growth, potentially due to microbial competition, nutrient imbalance, or stress. This eco-friendly method demonstrates the potential of bamboo-derived PGPR to boost mung bean productivity, supporting food security and profitability. Further studies should investigate its long-term effects and adaptability across diverse crops and farming systems, enhancing its utility for sustainable agriculture
ANALYSIS OF MATURING AND MATURATION OF BURAHOL PURWODADI BOTANICAL GARDEN COLLECTION
Get PDFFruit maturing enhances maturity and quality, making fruits more attractive. This process involves physiological and biochemical changes, including increased respiration, ethylene production, texture alteration, and heat improvement. This study examines the effects of different ethylene sources: calcium carbide (CaC2), 500 mg vitamin C, and potassium permanganate (PK), on the maturing of Burahol fruit (Stelechocarpus burahol). A Completely Randomized Factiorial Design (CRFD) with five replications was employed. Treatments included E1 (control, no ethylene), E2 (0.5% CaC2 of fruit weight wrapped in cloth), E3 (500 mg vitamin C/kg fruit), and E4 (PK crystals in a sealed chamber). Data collected on day three evaluated skin color (RHS charts), texture, and mucus presence. Results showed CaC2 and PK induced optimal maturing, yielding uniformly brownish-yellow fruits (20A/Brilliant Yellow), firm texture, and no mucus. Vitamin C fails to prevent decay due to mechanical damage from forced harvesting. This study highlights CaC2 and PK as effective maturing agents, providing practical solutions for Burahol fruit post-harvest management
CHARACTERISTICS AND POTENTIAL OF MICROPLASTIC DEGRADING BACTERIA FROM LOCAL MICROORGANISMS OF LERI ARUK FROM BANGKA BELITUNG
No full textOne of the efforts to reduce the impact of microplastic pollution is through local microorganisms (MOL). Practical and applicable MOL can be obtained from local materials such as leri aruk Bangka Belitung. This study aims to test the characteristics of various MOL formulations from leri aruk typical of Bangka Belitung as candidates for microplastic degradation agents and to characterize the bacteria. This study was conducted in several stages, namely sampling, making various MOL formulations, testing MOL based on physical, chemical and biological properties, isolation and characterization of microplastic degrading bacteria and testing the ability of bacteria to degrade microplastics. The results of the study obtained the best formulation results based on physical, chemical and biological properties, namely in formulation 2. The isolation results obtained 4 isolates that have the potential to degrade microplastics, namely isolates B13, B18, B19 and B20.Morphological and biochemical characterization of bacteria showed that isolates B13 and B19 were LactoBacillus, isolate B18 was Bacillus and isolate B20 was Escherichia. The consortium of 4 isolates can degrade microplastics by 7.14% for 1 week on LDPE plastic
ASSESSMENT OF WATER QUALITY IN SITU TLAJUNG HILIR USING POLLUTION INDEX AND SAPROBIC QUOTIENT APPROACHES
No full textSitu Tlajung Hilir is a natural lake in West Java, utilized by the local community to support livelihoods and contributing to the balance of the surrounding ecosystem. However, pollution from industrial and residential activities has raised concerns over its declining water quality. This study aims to assess the water quality of Situ Tlajung Hilir using the Pollution Index (PI) and Saprobic Quotient (SQ) methods. A descriptive quantitative approach with purposive sampling was conducted at four observation stations. Research activities included field observation, sample collection, measurement of physical, chemical, and biological parameters, and laboratory analysis. Instruments were calibrated prior to use. PI values ranged from 1.02 to 1.04, indicating a slightly polluted status based on the Decree of the Minister of Environment No. 115 of 2003. SQ values ranged from -0.10 to -0.79, reflecting moderate to fairly heavy pollution. The PI analysis showed that dissolved oxygen (DO) and temperature did not meet Class III water quality standards. SQ analysis revealed a dominance of Euglenophyceae and Paramecium (Ciliates), both indicators of organic pollution. In conclusion, the water quality of Situ Tlajung Hilir is categorized as slightly to fairly heavily polluted. Emphasizing the need for ongoing monitoring and improved waste management to protect the aquatic ecosystem
MELISSOPALYNOLOGICAL ANALYSIS OF HONEY FROM DOLAGO VILLAGE, CENTRAL SULAWESI
Get PDFOne thing that honeybees create that is very beneficial to human health is honey. Consequently, honey is frequently faked. With melissopalynology analysis, honey quality can be ascertained. A technique for analyzing pollen in honey to ascertain its botanical and geographic origin is called melissopalynology analysis.This study uses melissopalynology to analyze the quality and pollen composition of honey produced by Apis cerana bees in Dolago Village, Central Sulawesi. The research consists of five stages: collecting honey, extracting pollen from it using a modified acetolysis method, identifying pollen, classifying honey, and last, absolute pollen count. The analysis identified 11 plant species contributing to honey production, with Cocos nucifera as the predominant pollen (70%). Classified as unifloral honey with Group IV pollen richness, this research confirms the high quality and unique floral origin of Dolago honey, emphasizing its potential for local economic development
AMBIENT AIR POLLUTION IN INDUSTRIAL WORKPLACES: RISK ASSESSMENT OF POLLUTANT EXPOSURE AND RESPIRATORY HEALTH OUTCOMES
No full textWorkers represent a population at risk of exposure to air pollutants in the workplace, rendering them vulnerable to various health impacts, particularly respiratory disorders. This condition is attributed to prolonged inhalation exposure over time. This study aims to assess the magnitude of health risks associated with occupational exposure to air pollutants and to identify respiratory complaints among workers. This study employed a descriptive quantitative design, utilizing risk assessment methods to estimate the exposure risk levels of carbon monoxide (CO), nitrogen dioxide (NO₂), ozone (O₃), and total suspended particulate (TSP) in the workplace. The study population comprised production workers, selected via simple random sampling. The risk estimation indicated that the concentrations of CO, O₃, and TSP, were within acceptable safety limits. However, exposure to NO₂ exceeded safe thresholds, presenting non carcinogenic risks to workers with an average body weight of 66,48 kg, a daily exposure duration of 7,583 hours, and an annual exposure frequency of 236,99 days over a 12,85-year period. A significant proportion of workers reported respiratory symptoms and had previously been diagnosed with acute respiratory infections (ARI). Consequently, consistent use of personal protective equipment (PPE), particularly masks, is highly recommended to mitigate exposure to airborne pollutants
SPATIAL DISTRIBUTION AND SOURCE IDENTIFICATION OF HEAVY METAL POLLUTION IN URBAN RIVER SEDIMENTS: A CASE STUDY FROM THE ACAI RIVER, JAYAPURA, PAPUA
No full textThe Acai River is a river that flows through densely populated areas, from households and salons to small industries such as tofu and tempeh factories. The community's waste disposal into the river pollutes the river. Studies and monitoring of river quality, especially in Indonesia, are still dominated by examining pollutant levels in river water. However, sediment is also important for in-depth study. This study aims to examine the spatial distribution of heavy metals in sediments in the Acai River located in the urban area of Jayapura, Papua Province. Sediment samples were taken from five locations representing areas with different anthropogenic activities, such as dense settlements, home industries, and small business areas. Then, the samples were dried by placing them in an oven at 100°C. Laboratory analysis was conducted to determine heavy metal levels using the XRF (X-ray Fluorescence) method. Results showed the highest Zn concentration reached 102.1 ppm in the downstream location, while Cr and Ni also showed significant accumulation at certain points. The distribution of heavy metal levels did not show a linear pattern along the river flow, indicating local contributions from human activities. These findings confirm that heavy metal pollution in urban rivers is more influenced by local inputs than by the river flow itself
THE INFLUENCE OF WATERFALL DISTANCE ON BRYOPHYTES DIVERSITY IN THE COBAN RONDO WATERFALL AREA, PUJON, MALANG
Get PDFBryophytes 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