Senyawa metabolit sekunder merupakan senyawa khas yang dimiliki tumbuhan. Senyawa ini dapat berperan sebagai pelindung diri baik terhadap kondisi alam dan terhadap serangan hama. Metabolit sekunder dikelompokkan ke dalam tiga kelompok, seperti terpenoid, fenolik Analisis kualitatif ini menggunakan uji fitokimia dapat didukung dengan data UV-Vis dan FTIR untuk mengidentifikasi senyawa metabolit …
Robusta coffee shell (Coffea canephora) is a waste from coffee plantations that has the potential as an environmental pollutant. Coffee skin shell contains cellulose, hemicellulose, and lignin. The content through the pyrolysis process will be decomposed into phenolic compounds, carbonyls, acids, and so on in the form of liquid smoke. Phenol compounds in liquid smoke have the potential as antio…
This study aims to produce valid learning media chemistry-magazine and to determine the level of validation and students' responses to chemistry-magazine on buffer solution material. This type of research is research and development (R&D). The development procedure of this research adopts Borg & Gall model until the seven stage. The are three validator who are 1 media expert validator, 1 materi…