Karakteristik Pektin Kulit Buah Sukun (Artocarpus altilis (Park.) Fosberg) dan Uji Kemampuan Adsorpsi Logam Berat pada Limbah Laboratorium Stifera Semarang

Uji karakteristik pektin kulit buah sukun (Artocarpus altilis (Park.) Fosberg) dan uji kemampuan adsorpsi logam berat pada limbah laboratorium stifera Semarang. Tujuan penelitian ini yaitu menentukan kondisi optimum dalam menyerap ion Pb2+ Cd2+ terhadap parameter variasi berat, lama waktu kontak, pH ukuran partikel serta persentase penurunan kadar cair farmasi. Metode isolasi dilakukan dengan menggunakan metode konvensional pengujian air, abu, ekivalen, metoksil, galakturonat, derajat esterifikasi, identifikasi FTIR GC-MS. 4 optimasi 100, 300 500 mg; kontak 30, 60, 90 120 menit; 4, 5, 6 7; 80, 100 mesh, analisis alat spektrofotometri serapan atom. Hasil menunjukkan bahwa terjadi mg, menit, 5 mesh baik Cd2+. tersebut diaplikasikan farmasi didapatkan rata-rata Pb2+90,53% 91,51%.Kata kunci: Adsorpsi; sukun; pektinCharacteristics of Breadfruit Peel Pectin and Ability Test Heavy Metal Adsorption in Waste Stifera Laboratory SemarangABSTRACTCharacteristic test pectin breadfruit peel heavy metal adsorption ability laboratory waste The aim this study was to determine the conditions for absorb ions on parameters weight variation, contact time, particle size percentage decrease levels pharmaceutical wastewater. isolation method carried out using conventional methods characteristics were tested, namely water content, ash equivalent weight, methoxyl galacturonic esterification degree, identification, with optimization variations, is 300, length time 90, minutes; 6, variation 120, analytical atomic absorption spectrophotometry. results showed that occurred at minutes, both ions. These applied average reduction 90.53% 91.51%.Keywords: Adsorption; peel;