Biotechnology Unit, Division of Crop Improvement, ICAR - Central Research Institute for Jute and Allied Fibres, Barrackpore, 700 121, West Bengal, India.
Division of Crop Production, ICAR - Central Research Institute for Jute and Allied Fibres, Barrackpore, 700 121, West Bengal, India.
BMC Plant Biol. 2024 Apr 17;24(1):295. doi: 10.1186/s12870-024-04970-4.
The extraction of bast fibres such as jute from plant stems involves the removal of pectin, hemicellulose, and other noncellulosic materials through a complex microbial community. A consortium of pectinolytic bacterial strains has been developed and commercialized to reduce the retting time and enhance fibre quality. However, there are currently no studies on jute that describe the structural changes and sequential microbial colonization and pectin loss that occur during microbe-assisted water retting. This study investigated the stages of microbial colonization, microbial interactions, and sequential degradation of pectic substances from jute bark under controlled and conventional water retting. The primary occurrence during water retting of bast fibres is the bacterially induced sequential breakdown of pectin surrounding the fibre bundles. The study also revealed that the pectin content of the jute stem significantly decreases during the retting process. These findings provide a strong foundation for improving microbial strains for improved pectinolysis with immense industrial significance, leading to a sustainable jute-based "green" economy.
从植物茎中提取韧皮纤维（如黄麻）涉及通过复杂的微生物群落去除果胶、半纤维素和其他非纤维素物质。已经开发并商业化了一种果胶分解细菌菌株联合体，以缩短沤麻时间并提高纤维质量。然而，目前还没有关于黄麻的研究描述在微生物辅助水沤过程中发生的结构变化以及顺序微生物定殖和果胶损失。本研究调查了在控制和常规水沤条件下，微生物定殖、微生物相互作用和黄麻树皮中果胶物质顺序降解的阶段。在水沤过程中，韧皮纤维的主要发生情况是细菌诱导的纤维束周围果胶的顺序分解。研究还表明，在沤麻过程中，黄麻茎的果胶含量显著下降。这些发现为改善微生物菌株以提高果胶分解提供了坚实的基础，具有巨大的工业意义，可实现基于黄麻的“绿色”经济的可持续发展。
