Physical, chemical and thermal characterization of bacterial nanocellulose produced using sugar beet molasses by Komagataeibacter sp. SB2569
Küçük Resim Yok
Tarih
2026
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Bacterial nanocellulose (BNC) is a biopolymer synthesized by bacteria utilizing various carbon sources. The biocompatible and biodegradable nature of BNC offers considerable advantages for its application in fields such as medicine, biomedical engineering, cosmetics, food, nanocomposites, and organoelectronics. Nevertheless, the high production costs necessitate the development of more cost-effective and efficient BNC production methodologies. This study aimed to produce BNC utilizing cost-effective sugar beet molasses. To achieve this, bacteria isolated from various vinegar samples were assessed, revealing that the BNC production potential of these isolates ranged from 2.09 to 3.21 g L-1. The 16S rDNA gene of the strain with the highest BNC yield was amplified and sequenced, and it was subsequently deposited in the GenBank database as Komagataeibacter sp. SB2569, with the accession number PV231799.1. XRD analysis revealed characteristic diffraction peaks at 14.8 degrees, 16.5 degrees, 22.6 degrees, and 34.5 degrees, confirming the cellulose 1 beta crystalline structure and high crystallinity of the synthesized BNC. FTIR analysis exhibited characteristic absorption bandsthat, confirming the presence of beta-1,4-glycosidic linkages and the cellulose I structure of BNC. TGA analysis showed an initial weight loss of similar to 5% between 0-100 degrees C, a major degradation of similar to 75% occurring at 220-350 degrees C with a maximum decomposition rate at 343 degrees C, and a residual mass of approximately 10-20% remaining above 600 degrees C. The findings indicate that the Komagataeibacter sp. SB2569 strain holds significant potential for BNC production using low-cost carbon sources.
Açıklama
Anahtar Kelimeler
Bacterial nanocellulose, Komagataeibacter sp., XRD, FTIR, TGA, DSC
Kaynak
Biologia
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
81
Sayı
1
