ABSTRACT Oil palm (Elaeis guineensis Jacq.) is the primary source of vegetable oil, with higher productivity compared to other oil-producing crops. In Riau Province, the area of oil palm plantations continues to expand annually. This expansion has led to an increased demand for large quantities of seedlings, thereby necessitating effective nursery practices. In oil palm seedling cultivatio…
ABSTRACT Coconut (Cocos nucifera L.) is a strategic plantation crop in Indonesia that plays an important role in social, economic, and industrial aspects. Indragiri Hilir Regency is the largest producer of tall coconut in Riau Province; however, its productivity declines as the trees age. This study aims to analyze the quality of tall coconut fruits based on plant age in Tembilahan Hulu Di…
ABSTRACT Oil palm (Elaeis guineensis Jacq.) is widely cultivated in Indonesia, especially in Riau Province, where many plantations are located on marginal soils like sandytextured Dystrudepts which have high percolation and nutrient leaching. To address this, slow-release fertilizers like Polyhalite are suitable but require potassium supplementation, such as with KCI. This study aims to ex…
ABSTRACT Soybean (Glycine max L.) is an important legume crop due to its high nutritional value and its utilization in various processed products. Efforts to increase soybean productivity are often hampered by the growing dependence on inorganic fertilizers, which pose environmental concerns and increase production costs. A promising and eco-friendly alternative to reduce the use of inorga…
ABSTRACT Sweet potato (Ipomoea batatas L.) is an important carbohydrate source crop in Indonesia's food diversification program. Its production declined from 2020 to 2021, in line with a decrease in harvested area. One effort to improve the productivity of this crop is by optimizing planting spacing and applying biofertilizers containing microorganisms that play a role in decomposing organ…
This final project discusses a predator–prey dynamic model with delay-induced effects, incorporating a fear effect on the prey and intraspecific competition within the predator species. For the system without delay, three equilibrium points are obtained, namely two saddle points and one whose stability depends on certain parameters. In the delayed system, there exists a critical delay thre- s…
PT. Freedom is a company operating in the cafe industry that has been using a manual system for managing product marketing reports by recording and managing data using Excel spreadsheets. This manual system creates various obstacles such as difficulty in tracking sales performance in real-time, risk of errors in data recording, and slow report preparation processes for analysis and decision-mak…
The Governor's Office of Riau manages a wide range of assets distributed across multiple work units, requiring a structured and efficient management system. Currently, the inventory process is still carried out manually, which is prone to recording errors and is less effective for handling a large volume of assets. This study aims to design and develop a web-based asset inventory information sy…
This final project aims to design and implement a web-based Shift Operational Daily (SOD) information system at Awal Bros Ahmad Yani Hospital. The system is intended to replace the previous manual reporting process using spreadsheets, which often caused issues such as data entry errors, reporting delays, and difficulties in data management. The research was conducted through stages of observati…
The increasing number of illegal cosmetic and pharmaceutical products not registered with BPOM has raised public concern. To address this issue, a web- based information system was developed that allows users to check the legality of products and report unregistered items. This system is built using PHP, MySQL, and OTP verification via email. The main features include registration, login, produ…
This final project aims to design and develop a web-based medication delivery information system at Awal Bros Ahmad Yani Hospital, which previously still used manual methods with Excel spreadsheets. This system is designed to automate the drug distribution process, improve recording accuracy, accelerate delivery time, and provide convenience for medical personnel in monitoring and managing drug…
The academic consultation information system is a web-based system designed to facilitate computer science students at the University of Riau to conduct counseling effectively. This system aims to facilitate students in conducting counseling guidance, without having to come directly to campus. The development of this application was carried out using PHP as a programming language, Bootstrap as …
Lycopodiella cernua L., commonly known as the wire fern and classified under the Lycopodiaceae family, has been reported to possess potential as a source of bioactive compounds, particularly with antifungal properties. This study aims to isolate bioactive constituents from L. cernua and to identify compounds with potential antifungal activity. Extraction was performed using a sequential macerat…
The white jabon fruit (Anthocephalus cadamba Miq.) can be used as a biosorbent because it has a cellulose content that can be increased in the adsorption process by activation. Activation in this study used NaOH and was combined with humic acid compounds from peat water which are expected to expand the surface area and increase the number of active sites on the biosorbent. This study aims to de…
Arcangelisia flava, commonly known as akar kuning, is a medicinal plant belonging to the family Menispermaceae, and is well-known especially among the Dayak tribe as a traditional remedy for various diseases. The isolation process began with the extraction of the leaves of A. flava using the maceration method. The n-hexane extract of the plant's leaves was purified using vacuum liquid chromatog…
Laccase enzyme (p-diphenol; dioxygen oxidoreductase, EC 1.10.3.2). is an oxidoreductase enzyme capable of catalyzing the oxidation of various phenolic and non-phenolic compounds using molecular oxygen (O2) as the sole electron acceptor. The group of laccase enzymes have a wide substrate spectrum. Due to this property, laccase has been widely utilized in various industrial processes. It plays an…
Selaginella doederleinii Hieron, commonly known as "paku cakar ayam," is a plant from the Selaginellaceae family that known for its anticancer and antioxidant properties, its antibacterial potential has not been extensively investigated. This study aimed to isolate secondary metabolite compounds from the n-hexane extract of S. doederleinii and to evaluate their antibacterial activity using the …
Antidesma bunius is one of the species belonging to the Euphorbiaceae family. Three species of Antidesma, A. madagascariensis, A. ghaesembilla and A. venosum have been widely reported to have antibacterial activity. This study aims to isolate and characterize secondary metabolite compounds, and identify the antibacterial activity of ethyl acetate extract of A. bunius bonai leaves using the disc…
Lycopodiella cernua (L.) Pic. Serm. belongs to the family Lycopodiaceae. Members of this family have been traditionally used in various regions, particularly in China, India, and Southeast Asia, for the treatment of hepatitis, rheumatism, and burns. This plant is known to contain secondary metabolites, including steroids, phenolics, and flavonoids. The present study aims to isolate secondary me…
The white jabon fruit (Anthocephalus cadamba Miq.) is expected to have potential as a biosorbent due to its relatively high cellulose content. The powder of white jabon fruit activated with NaOH and combined with peat water has been studied for its capability as a biosorbent because it possesses a high surface area and contains many active functional groups in humic acid, with the jabon fruit s…