Optimization of Bacterial Cellulose Production by Komagataeibacter rhaeticus K23
Küçük Resim Yok
Tarih
2024
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Mdpi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
The use of bacterial cellulose (BC), having high purity, a high degree of crystallinity, water-holding capacity, tensile strength and adaptability on a broad scale is limited because of the low yield. In this study, the optimal conditions for bio-cellulose production by Komagataeibacter rhaeticus K23 were investigated. Optimal values for temperature, pH, inoculum concentration and incubation time were determined via Taguchi design. The maximum BC production, 9.1 +/- 0.66 gL-1 (dry weight), was obtained from 32 degrees C, pH 5.5, 8 log CFUmL(-1) and 14 days of incubation. The inoculum concentration was the most significant factor affecting BC yield. A value of 8 log CFUmL(-1) and 14 days of incubation led to significantly higher levels of BC yield than other concentrations (8.5, 9, 9.5, 10 and 10.5 log CFUmL(-1)) (p < 0.002) and days (15, 16, 17, 21 and 28) (p < 0.001). The studied features, namely absorption peaks (Fourier transform infrared spectroscopy), pattern and the crystallinity index (X-ray diffraction analysis) of the BC obtained in this study were all in parallel with the characteristics of cellulose I. The study demonstrates that optimized parameters were effective in producing BC with high water-holding capacity, tensile strength, elongation and Young's modulus (mechanical tests) by K. rhaeticus K23.
Açıklama
Anahtar Kelimeler
bacterial cellulose, optimization, incubation, Komagataeibacter rhaeticus, Taguchi methods, design of experiment, biocellulose
Kaynak
Fibers
WoS Q Değeri
Q2
Scopus Q Değeri
Q1
Cilt
12
Sayı
3
