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Ananda Putra
Jurusan Kimia FMIPA UNP
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Materials Science & Nanotechnology

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PREPARASI DAN KARAKTERISASI KOMPOSIT SELULOSA BAKTERIAL – RUMPUT LAUT (Eucheuma cottonii) UNTUK APLIKASI BIOMEDIS Febbi Rahmayuni; Edi Nasra; Ananda Putra
Jurnal Periodic Jurusan Kimia UNP Vol 5, No 2 (2016)
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (920.974 KB) | DOI: 10.24036/p.v5i2.108526

Abstract

Composite bacterial cellulose - seaweed (BC-SW) was prepared by immersing the bacterial cellulose (BC) in seaweed extract (SW) for 1,2,3, and 4 days. Has researched the effect of immersion time on the physical and mechanical properties of the composite, the result showed that longer of immersion time decreases the water content, the higher the compressive strength, tensile strength and elasticity BC-SW composite. From the research done, the content of BC reached 99 156% while for BC-SW composite decreased water content of up to 98 585%. In the compressive strength test, the compressive strength of BC is 0292 MPa, while the BC-SW composite the compressive strength increased 2 times to 8 times stronger than BC. The value of physical and mechanical properties have not been suitable with the standards for the manufacture of cartilage. Analysis of the structure of KSB-RL was observed using FTIR and XRD. Results of FTIR spectra showed no new functional groups but only experienced a slight shift in the vibrational wave numbers.
PREPARASI DAN KARAKTERISASI KOMPOSITSELULOSA BAKTERIAL-EKSTRAK DAUN KACA PIRING(Gardenia augusta) UNTUK APLIKASI BIOMEDIS Silvia Dewi Sartika; Ananda Putra; Ali Amran
Jurnal Periodic Jurusan Kimia UNP Vol 5, No 2 (2016)
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1176.172 KB) | DOI: 10.24036/p.v5i2.108528

Abstract

Bacterial Cellulose (BC) was fermented coconut water with the aid of Bacteria Acetobacter xylinum. The generated BC became composite by adding a natural ingredient of Ectract of Gardenia augusta Leaves (EGAL). Gardenia augusta leaves was an annual shrub of the coffee genus or rubiaceae. Gardenia augusta leaves contain of chemicals such as flavonoids, saponins, tanins, galat and steroid or terpenoids. This research aimedat determining the effect of immersion time of Bacterial Cellulose in EGAL within 1,2,3 and 4 days onphysical properties (water content), mechanical properties (Compressive Strength using Toni technik Compressive Test Bauform Model 2020 and Tensile Strength using Buchel B.V Horizontal Tensile Tester model No. K465,item 84-58-00-0002 range 500N, 230V-50Hz), and Structural (Functional Groups using FTIR and Crystalinity using XRD) against Composite Bacterial Cellulose-Ectract of Gardenia augusta Leaves (CBC-EGAL) produced. The results showed the water content test,compressive strength test and the tensile strength test of CBC-EGAL are still belowed the minimum standard of articular cartilage. It was caused by least EDKP that goes into the matrix (SB).EGAL also could increase modulus young of BC. The result of XRD spectra and FTIR difractogram  showed that BC and CBC-EGAL wasbelonging to cellulose type-I.
Co-Authors Ali Amran Edi Nasra Febbi Rahmayuni Silvia Dewi Sartika