Determining the final waste disposal site is a complex problem for Lamandau Regency, which is a developing district, the more people there are every year, the more waste is produced. However, determining the location is still done subjectively without considering the influencing factors and is still manual. In problems like this, the decision support system can be used as a solution to help make decisions. This study aims to implement a decision support system in determining the final disposal site using the Multi-Factor Evaluation Process (MFEP) method which is applied in the form of a Web Application using a prototype model. In determining the final disposal site, there are 5 criteria to be assessed, namely: Cover Land with an initial weight of 0.2, Rain Intensity with an initial weight of 0.1, Nature Reserve with an initial weight of 0.2, Agriculture with an initial weight of 0.3 and Entrance roads with an initial weight of 0.2, and the number of alternatives consists of 5 locations. The findings show that the error rate of this system is below 5%. After testing all modules or system components, all of them were successful and feasible to be used as a tool in determining the final place of development.
Kirinyuh merupakan gulma yang hidup di daerah tropis maupun subtropis. Tanaman tersebut memiliki kandungan senyawa bioaktif utama seperti alkaloid, saponin, fenolik, tanin, steroid dan flavonoid. Penelitian sebelumnya dilakukan uji eksperimen terkait kandungan senyawa bioaktif pada bagian daunnya saja, sedangkan pada bagian batang dan akar masih sangat sedikit. Tujuan penelitian yaitu mengetahui kadar total fenolik dan flavonoid dalam ekstrak etanol daun, batang, dan akar Kirinyuh serta mengetahui bagian mana yang memiliki kandungan senyawa bioaktif terbesar. Metode penelitian ini dilakukan secara kuantitatif menggunakan metode eksperimental di laboratorium. Masing-masing bagian Kirinyuh dimaserasi menggunakan pelarut etanol 70%. Hasil maserasi yang didapatkan yaitu berupa filtrat, lalu diuapkan sampai menjadi ekstrak kental. Perhitungan jumlah kadar total fenolik dan flavonoid dilakukan dengan mensubstitusikan nilai absorbansi sampel ke dalam hasil regresi kurva baku asam galat dan kuersetin yang diperoleh menggunakan metode spektrofotometri UV-Vis. Hasil nilai kadar total fenolik dihitung %b/b sebagai nilai GAE dan flavonoid dihitung %b/b sebagai nilai QE ekstrak etanol Kirinyuh dengan metode spektrofotometri UV-Vis adalah daun sebesar 44,970 ± 3,725 %b/b dan 38,306 ± 0,195 %b/b, batang sebesar 20,403 ± 4,002 %b/b dan 3,959 ± 1,891%b/b, dan akar 21,381 ± 28,824 %b/b dan 3,289 ± 3,943 %b/b. Nilai kadar total fenolik dan flavonoid terbanyak berada pada bagian daun sebesar 44,970 ± 3,725 %b/b dan 38,306 ± 0,195 %b/b.
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