Tadulako Science and Technology Journal

Phytochemical Analysis and Antioxidant Activity of Pandila Tree Leaves (Saurauia Tristlyla Dc) From Tibo Village

2024-07-23T14:43:17+00:00

Introduction: The Pandila tree known as pandila (Saurauia tristlyla DC) is one of the plants that has been traditionally used as a medicinal material. Pandila has been traditionally used by the community as a medicine for external and internal diseases, for example, pandila leaves are believed by the Tibo Village community to absorb congealed blood due to accidents. This study aims to determine the secondary metabolite content and antioxidant activity of pandila leaves. Method: The research method used in this study is a descriptive method by looking at changes in color and liquid form in alkaloids, Flavonoid, Tannin, Saponin, Steroid, Terpenoid, and Carotenoid compounds. Phytochemical analysis was carried out on 96% ethanol extract of pandila leaves. The DPPH method was used to determine the antioxidant activity. The results of phytochemical analysis obtained on the leaves of Pandila tree leaves (Saurauia Tristlyla DC) using 96% ethanol solvent are old leaf extracts and young leaves of pandila positively contain 3 compounds namely Tannins, Steroids, and Carotenoids. Results and Discussion: The results of the antioxidant activity test of Pandila leaf extract using the DPPH method on old leaves have an IC50 of 101, 2844 ppm including in the moderate category, and on young leaves have an IC50 of 76.688 ppm which is included in the strong category. Conclusion: Pandila tree leaves are still safe to be used as traditional medicine, by looking at the tannin, steroid, and carotenoid compounds contained in pandila leaves. In addition, the results of antioxidant activity analysis are also a supporting factor where the antioxidant content in old leaves and young leaves of Pandila trees is classified as strong and moderate, so this plant is still safe to be used as a traditional medicinal plant.

Utilization of Medicinal Plants and Conservation Efforts by the Community in Sibowi Village

2024-07-23T14:43:17+00:00

Introduction: Forests as a place to grow various kinds of plants become a source of biodiversity that is beneficial to human life. Biodiversity in the forest can provide benefits to humans, such as providing food sources for humans, one example is plants used as medicine. Medicinal plants can be conserved by cultivating in the yard and growing wild. Method: This study aims to record the types of plants used, plant parts used, how to use them, and conservation efforts made by the community in Sibowi Village. This research was conducted in Sibowi Village, Sigi Regency, Central Sulawesi. Results and Discussion: The results of research on the utilization of medicinal plants in Sibowi Village show that the types used as medicinal plants are 23 species from 20 families. Plant parts that are widely used are leaves 43% and less utilized parts are stems and all parts 4%. The processing method that is widely used is boiled 52% and the less used method is burned and squeezed 4%. The method of utilization that is widely used is drunk 64% and the method that is less used is chewed and washed 6%. Conclusion: Conservation efforts were analyzed descriptively where plants that are widely cultivated by the community in the yard are Turmeric (Zingiber officinale L.), Lemongrass (Cymbopogon citratus), and Ginger (Zingiber officinale L.), these plants are not only used as medicinal plants but are used as kitchen ingredients and are easy to cultivate.

Erosion Hazard Class Mapping in Dolago Das, South Parigi Sub-district

2024-07-23T14:43:17+00:00

Introduction: Erosion can be caused by natural activities or human activities. Erosion events that occur naturally do not cause too many problems, but erosion events caused by humans can cause various problems of land damage or degradation and experience an accelerated rate of erosion. The Dolago watershed has an area of ±17,283.09 ha and is a priority watershed that needs attention because several natural disasters such as erosion, landslides, and floods have harmed the community when rainfall increases. Method: Based on the case above, researchers studied the erosion risk class of the Dolago watershed by combining erosion prediction methods, namely USLE and Geographic Information Systems. Erosion hazard class research was carried out in the Dolago watershed for 3 months, from September to November 2022 using the Universal Soil Loss Equation method and Geographic Information System, namely Overlay of several data (erosion determining parameters) to determine the erosion hazard class in the Dolago watershed. Results and Discussion: The results of research using the Geographic Information System and the Universal Soil Loss Equation method show that the amount of eroded soil in the Dolago watershed is 23,888.80 tons/ha/year and the erosion hazard class is divided into 5 classes, namely Class I (very light) erosion rate <15 tons/ha/year with an area of 15,111.55 ha, class II (light) erosion rate 15 - 60 tons/ha/year with an area of 175.52 ha, class III (medium) erosion rate 61 - 180 tons/ha/year with an area of 1,244.87 ha, class IV (heavy) erosion rate 180 - 480 tonnes/ha/year with an area of 491.66 ha and class V (very heavy) erosion rate >480 tonnes/ha/year with an area of 259.49 ha. Conclusion: Combining the geographic information system and the USLE method, five types of erosion hazard classes can be produced, namely class I classified as very light with an area of 15,111.55 ha percentage of 82.81%, class II classified as light with an area of 193.52 ha percentage of 1.12%, class III classified as moderate with an area of 1,815.52 ha percentage of 10.50%, class IV classified as heavy with an area of 682.32 ha percentage of 3.95% and class V classified as very heavy with an area of 279.56 ha percentage of 1.62%.

Masculinization of Tilapia (Oreochromis Niloticus) by Oral Method Using Senggani Fruit Extract (Melastoma Malabathricum L.)

2024-07-23T14:43:17+00:00

Introduction: Tilapia have different growth rates in male and female fish where the growth of male fish is faster than female. Therefore, in tilapia farming activities, the production of tilapia weighing >100g/head is difficult to achieve due to uncontrolled spawning. Method: This study was designed using a completely randomized design (CRD) with 5 treatments and 4 replicates, namely treatment A (control), B (Senggani fruit extract 0.75 g/kg feed), C (extract 1.5 g/kg feed), D (extract 2.25 g/kg feed), E (extract 3 g/kg feed). The organisms used in the study were 7-day-old tilapia larvae. Tilapia larvae were given feed that had been added with Senggani fruit extract according to the treatment dose. Tilapia were reared for 62 days, and given artificial feed containing 41% protein, each feeding was given with a frequency of 3 times a day (morning, afternoon, evening). Results and Discussion: The results showed that the highest percentage of male sex was found in treatments A, B, C, D and E, which amounted to 50; 56.25; 57.5; 58.75; and 60%, respectively. Daily growth rate, survival and feed conversion ratio obtained during the study in each treatment amounted to 7.49, 7.45; 7.44; 7.46; and 7.40. for survival 73.75; 72.5; 72.5; 70; and 68.75 then the results of feed conversion ratio respectively 1.86; 1.88; 1.89; 1.86; and 1.91. The analysis showed that the highest percentage of male sex was found in the treatment of 3 g/kg feed which amounted to 60% (P>0.05). Daily growth rate, survival rate and feed conversion ratio did not significantly affect the treatment given (p>0.05). Conclusion: The results of water quality measurements obtained are still within the optimum limits for tilapia rearing. Conclusion: Feeding using Senggani fruit extract to masculinize tilapia did not have a significant effect (p>0.05) on the percentage of male tilapia, daily growth rate and feed conversion ratio.

Remote Water Quality Monitoring System In Shrimp Ponds With Photovoltaic (PV)-Based Energy Source

2024-07-23T14:43:17+00:00

Introduction: Shrimp has great potential to be used as a business field in Indonesia. Especially in Parigi Regency itself, there are now many shrimp ponds that can be found because of the benefits obtained, so people are interested in making shrimp farming a livelihood. One of the main problems of shrimp ponds is pond water quality. There are several factors that affect pond water quality, namely water temperature, water pH, and water salinity, good pond water quality management can maintain quality standards and can increase shrimp yield and productivity Method: To facilitate the shrimp farmers, innovations need to be made in order to help the shrimp farmers manage their shrimp ponds, therefore using a remote water quality monitoring was system in shrimp ponds with photovoltaic (PV) based energy sources is expected to be an innovation in managing shrimp ponds, especially in monitoring water quality in shrimp ponds. The monitoring system designed using the NRF24L01 module as a remote communication module, at the research location the distance from the shrimp pond to the house is approximately 100 meters, so the tools that have been designed can facilitate shrimp farmers to monitor the shrimp pond Results and Disscussion: The results of testing the DS18B20 temperature sensor compared with a digital thermometer measuring instrument get an average error of 0.014%. The test results of the pH sensor compared to the pH meter get an average error of 0.026%. TDS sensor test results compared with the TDS meter get an average error of 0.04%. Conclusion: The temperature, pH, and salinity monitoring system uses transmitter and receiver modules, where the transmitter module reads and sends data to the receiver module wirelessly with NRF24L01. Using DS18B20 temperature, pH, and TDS sensors, as well as energy from photovoltaics, this system helps shrimp farmers monitor pond water quality remotely.

Analysis Of Calculation Of Illumination Needs At Tadulako University Hospital

2024-10-22T00:40:37+00:00

Introduction: Lighting in the room varies, this is adjusted to the activities carried out in the room. Each room has its own lighting standards. The provision of electric power must meet sufficient capacity to serve the load. The construction of the Tadulako University College Hospital project cannot be separated from the need for electricity. In this building, electric power is used to meet lighting, air conditioning and medical needs. Method: This study uses a comparative analysis method to determine the suitability between the lighting calculation results and established standards, as well as a quantitative method in calculating lighting factors. Results and Disscussion: This study shows that the use of Downlight and LED Panel lamps at Tadulako University Hospital has met the standards of PERMENKES NO. 24 of 2016. Downlights are used in public spaces and corridors because they provide more focused and bright lighting, while LED Panels are used in special rooms for the comfort of patients and medical personnel. The trial showed that all rooms comply with the established lighting standards. Conclusion: This study concluded that the lighting system in Tadulako University Hospital using Downlight and LED Panel lamps has met the standards set by PERMENKES NO. 24 of 2016. LED Panel lamps are used in certain rooms to provide comfort for patients and medical personnel, while Downlight lamps are used in public rooms and corridors because the lighting is more focused and bright.