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Publication
Agro-industrial byproducts as modification enhancers of the bacterial cellulose biofilm surface properties: an inverse chromatography approach
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Advisor(s)
Abstract(s)
Bacterial cellulose (BC) has remarkable and excellent properties. However, the high-cost production and the use
of chemicals for BC modification make its application unattractive. A simple approach to modify the properties of
BC during biosynthesis, by using alternative low-cost carbon sources from agro-industrial byproducts, was
studied. The carbon source (date syrup, mannitol, sucrose, food-grade sucrose, and glucose) significantly
changed the BC network morphology and structure. Date syrup source induces the highest modifications in the
surface properties of BC: smaller area (SBET = 4.04 m2
/g), higher hydrophobic (γd
s = 45.79 mJ/ m2
) and basic
character (Kb/Ka = 1.10), at 25 ºC. Food-grade sucrose source resulted in the lowest yield of BC production (37%
less), however caused an increase in the BC network reticulation and a high crystalline structure (IC = 82.3%).
This sustainable and simple methodology presents a low-cost and efficient approach allowing the modulation of
the surface properties of BC.
Description
Keywords
Bacterial cellulose Surface characterization Low-cost carbon sources Cellulose biosynthesis Date syrup IGC . Faculdade de Ciências Exatas e da Engenharia
Citation
Faria, M., Mohammadkazemi, F., Aguiar, R., & Cordeiro, N. (2022). Agro-industrial byproducts as modification enhancers of the bacterial cellulose biofilm surface properties: an inverse chromatography approach. Industrial Crops and Products, 177, 114447.
Publisher
Elsevier