Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Blvd. Rosales y Luis Encinas s/n, Col. Centro, Hermosillo, Sonora, C.P. 83000, Mexico.
Departamento de Investigaciones Científicas y Tecnológicas de la Universidad de Sonora, Blvd. Luis Donaldo Colosio s/n, Col. Centro, Hermosillo, Sonora, C.P. 83000, Mexico.
Carbohydr Polym. 2019 Mar 1;207:91-99. doi: 10.1016/j.carbpol.2018.11.067. Epub 2018 Nov 23.
Pecan nutshell is an abundant waste with a high content of carbohydrates. According to its chemical composition, pecan nutshell could be used as carbon source for Gluconacetobacter entanii, a bacterium that produces cellulose with high purity and nanometric characteristics. Bacterial cellulose (BC) was obtained from a static culture medium using pecan nutshell as carbon source and saccharose as control. Results showed that the pecan nutshell could be used as carbon source for production of BC. The cellulose yield ranged around 2.816 ± 0.040 g/L for 28 days. The morphological, structural and chemical properties of the cellulose produced were similar to those reported for others BC. The spectroscopic characterization indicated the chemical functionalization of BC and the reduction of its crystallinity. The production of BC with G. entanii using pecan nutshell as carbon source, is the first report. The BC could have potential use in chemical functionalization and in the preparation of biocomposites.
山核桃壳是一种碳水化合物含量很高的丰富废弃物。根据其化学成分，山核桃壳可用作产纤维素很高纯度和纳米特性的细菌——葡糖醋杆菌（Gluconacetobacter entanii 的碳源。细菌纤维素（BC）是从使用山核桃壳作为碳源和蔗糖作为对照的静态培养基中获得的。结果表明，山核桃壳可用作生产 BC 的碳源。28 天内纤维素的产量约为 2.816±0.040g/L。所生产的纤维素的形态、结构和化学性质与其他报道的 BC 相似。光谱特性表明了 BC 的化学功能化和结晶度的降低。使用葡糖醋杆菌和山核桃壳作为碳源生产 BC 尚属首次报道。BC 可能具有在化学功能化和制备生物复合材料方面的潜在用途。
