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PEMANFAATAN RESIN KITOSAN-AMIN UNTUK RECOVERY EMAS DARI LIMBAH PENGOLAHAN EMAS M. Nasir; Adlim Adlim; Ibnu Khaldun; M. Ali Zulfikar
Biologi Edukasi: Jurnal Ilmiah Pendidikan Biologi Vol 4, No 2 (2012): Biologi Edukasi: Jurnal Ilmiah Pendidikan Biologi
Publisher : Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (114.026 KB)

Abstract

Chitosan as a material of biological origin has recently been used for recovery of metal ions. This research aims to synthesize kitosan resin resulted by the reaction of kitosan with etilendamin. In the present work chitosan was cross-linked with glutardialdehyde and subsequently treated with epichlorohydrine and ethylene diamine. The resins CR-amine was found to contain 22.7% water content,  and were insoluble in organic solvents as well as in mineral and organic acids. The concentration values of the active sites on the resins are reported. The higher concentration of active sites of CR-amine 6.01 mmol/g indicates that the “en” moieties are covalently bonded to the cross-linked resin. Several chemical modification methods were tried in increasing the uptake capacity of cross-linked chitosan bead. Among them, aminated chitosan beads formed through the chemical reaction using ethylenediamine showed the highest uptake capacity for gold ions. Uptake capacity of aminated chitosan beads was increased to about 0.8 mmol Au3+ g-1 dry mass compared to that before modification. The increase of amine groups was confirmed by IR spectrum and measurement of amine concentration and surface condition on aminated chitosan bead was also confirmed by  SEM.
Sintesis dan Pemanfaatan Kitosan Berbasis Limbah Udang: Integrasi Etika Islam dan Sains dalam Pengembangan Bahan Ramah Lingkungan Ainur Rizqi Choiriyah; Armeida D.R Madjid; Eny Yulianti; Mubasyiroh Mubasyiroh; Tri Kustono Adi; M. Ali Zulfikar; Henry Setiyanto
Es-Syajar:Journal of Islam, Science and Technology Integration Vol 3, No 1 (2025): Es-Syajar:Journal of Islam, Science and Technology Integration
Publisher : UNIVERSITAS ISLAM NEGERI MAULANA MALIK IBRAHIM MALANG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.18860/es.v3i1.34468

Abstract

The increasing shrimp production and consumption in Indonesia generates significant amounts of shrimp shell waste, which has not been optimally utilized and often becomes an environmental problem. This waste is rich in chitin, which can be processed into chitosan—a multifunctional biopolymer with various applications in food, health, agriculture, and environmental fields. This literature review explores the synthesis process, characterization, and utilization of chitosan derived from shrimp shell waste, while highlighting the importance of integrating Islamic ethical values in the sustainable management of natural resources. The synthesis of chitosan involves demineralization, deproteinization, and deacetylation steps, with critical parameters such as temperature, time, and base concentration affecting the degree of deacetylation. The review shows that utilizing shrimp shell waste as a source of chitosan not only supports circular economy principles and waste reduction but also aligns with Islamic teachings on responsible environmental stewardship. The integration of science and Islamic ethics is expected to promote the development of high-value, sustainable, and environmentally friendly biomaterials.