Publication Search

Substance and prescription drug misuse among adolescents continues to escalate and demands targeted preventive strategies within the school setting. This community service activity aimed to enhance students’ knowledge about the hazards of drug abuse through an interactive, school-based educational intervention. The program was conducted on 11 November 2026 at SMA Negeri 7 Kota Batam, involving fifty grade-X students as participants. A pre-experimental one-group pretest–posttest design was employed. The intervention combined interactive lectures, real-case illustrations, and two-way discussion, with knowledge measured using a content-validated questionnaire covering ten indicators. The mean score improved from 55.2 (pretest) to 86.3 (posttest), a gain of 31.1 points, while the proportion of correct answers across indicators rose from 48.6-62.9% to 80.0-91.4%. The largest gains appeared on items concerning rational drug use and the importance of professional health guidance, whereas the legal-consequence indicator improved more modestly. Interactive, contextually relevant education proves effective in elevating adolescent knowledge of drug abuse hazards, with stronger gains on experience-near content than on abstract regulatory aspects.

The Soxhlet extraction method uses repeated heating and solvent circulation to separate substances from mixtures, producing more extract faster than maceration with less solvent. However, this method requires pure solvents and is not suitable for thermolabile compounds as they can be degraded by heat. Soxhlet extraction is more effective for limited quantities of dry and fine herbal materials. This method is widely used to extract phytochemical compounds such as flavonoids, tannins, and curcumin, and has potential in cosmetic raw materials, herbal medicines, and antioxidant products. Although it uses more energy, this technique is efficient and continuous. Modern innovations such as combining it with Ultrasonic Assisted Extraction (UAE) or environmentally friendly microextraction are expected to increase extraction efficiency while reducing the use of organic solvents. Modifications to Soxhlet, including automation and assistive technologies such as high pressure, ultrasound, and microwaves, open up opportunities for commercialization and further research with more optimal results and more practical operations. The modified Soxhlet is considered a “panacea” in extraction due to the significant performance improvements achieved.