IDENTIFICATION AND DETERMINATION OF CAFFEINE CONTENT IN BUTONG TEA AND BLACK TEA USING SOXHLET EXTRACTION AND TLC: IDENTIFIKASI DAN PENETAPAN KADAR KAFEIN TEH BUTONG DAN BLACK TEA DENGAN SOXHLETASI SERTA KLT. Forte Journal, [S. l.], v. 6, n. 02, p. 602–607, 2026. DOI: 10.51771/fj.v6i02.2401. Disponível em: https://ojs.unhaj.ac.id/index.php/fj/article/view/2401. Acesso em: 13 nov. 2026.