CROSSLINKER EFFECT ON CHARACTERISTICS OF BACTERIAL CELLULOSE-EXTRACTED BINAHONG LEAF (A. CORDIFOLIA TEN. STEENIS) COMPOSITES

Abstract

This study aims to determine the effect of adding crosslinkers 1,3 and 5% on the characteristics of bacterial cellulose composites from Binahong Leaf Extract (Anredera cordifolia (Ten.) Steenis). Acetobacter xylinum is used in the 14-day fermentation of a mixture of coconut water, sugar, and urea to produce bacterial cellulose (BC). The identification of the characteristics of BC, BC-EBL, and BC-EBLC according to the standard cartilage value was carried out by testing water content, tensile strength, and functional group analysis using FTIR. Using a 5% crosslinker, the BC water content test results can be decreased from 99.29% to 97.94%. The tensile strength value from the results of testing the mechanical properties of KSB-EDBC 5% is higher than KSB-EDBC 3%, KSB-EDBC 1%, KSB-EDB, and SB whose respective values ​​are 121.35 MPa, 72.08 MPa, 66.58 MPa, 49.81 MPa and 41.97 MPa. The results of the FTIR spectrum showed that bacterial cellulose only experienced a shift in the wave number of the functional group.It was concluded that with the addition of a 5% crosslinker, the characteristics of the bacterial cellulose composite of binahong leaf extract according to cartilage standards were maintained.