Efek Penambahan Nano Kitosan terhadap Aktivitas Anti Bakteri dan Ketuaan Warna dari Kain Katun Yang Dicelup Dengan Ekstrak Biji Bixa Orellana

Renung Reningtyas, Muhammad Rizki Octavianto, Rida Septiyansi


Cotton as a natural textile, especially those dyed with natural dyed are easy to be attacked by microorganism. Chitosan is a biopolymer that has the properties of inhibiting microbial activity. In this study, we aimed to applied nanochitosan as antibacterial agent in cotton fabric dyed with natural dye from Bixa Orellana seeds. Nanochitosan were prepared by the gelation method using sodium tripolyphosphate solution. Nanochitosan coating on cotton fabric studies have been carried out with various chitosan concentration (0.2%; 1%; and 2%) by immersion. The effect of the addition of citric acid solution as a crosslinker between cotton and chitosan and also the effect of sodium periodate as a catalyst in crosslink process were also studied. The functional groups present in the sample were characterized by Fourier Transform Infrared (FTIR). The color strength (K/S) were measured with spectrophotometer. The antibacterial strength were measured using agar plate method.


cotton, chitosan, Bixa Orellana, crosslink, anti-bacterial


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