Microencapsulation of Lactiplantibacillus plantarum BXM2 in Bamboo Shoot-Derived Nanocellulose Hydrogel to Enhance Its Survivability
文献类型： 外文期刊
作者： Huang, Yajuan 1 ; Guan, Qiao 1 ; Wu, Yirui 1 ; Zheng, Chaoyang 1 ; Zhong, Lingyue 2 ; Xie, Wen 1 ; Chen, Jiaxin 1 ; Huang, Juqing 2 ; Wang, Qi 2 ; Zheng, Yafeng 1 ;
作者机构： 1.Fujian Agr & Forestry Univ, Coll Food Sci, Fuzhou 350002, Peoples R China
2.Fujian Acad Agr Sci, Inst Food Sci & Technol, Fuzhou 350003, Peoples R China
关键词： nanocellulose; probiotics; hydrogel; viability
期刊名称：GELS （ 影响因子：5.3； 五年影响因子：5.4 ）
ISSN：
年卷期： 2025 年 11 卷 6 期
页码：
收录情况： SCI
摘要： This study presents a novel approach for enhancing the survivability of Lactiplantibacillus plantarum BXM2 using bamboo shoot-derived nanocellulose hydrogels. Nanocellulose hydrogels, composed of cellulose nanofibers (CNFs), cellulose nanocrystals (CNCs), and polyvinyl alcohol (PVA), were developed as protective matrices for probiotics. Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) confirmed the successful formation of hydrogen-bonded networks between PVA and nanocelluloses, while scanning electron microscopy (SEM) revealed that the ternary PVA-CNF-CNC hydrogel exhibited a dense, hierarchical porous structure, effectively encapsulating probiotics with an encapsulation efficiency of 92.56 +/- 0.53%. Under simulated gastrointestinal digestion, the encapsulated probiotics maintained 8.04 log CFU/g viability, significantly higher than that of free bacteria (3.54 log CFU/mL). The hydrogel also enhanced heat tolerance (6.58 log CFU/mL at 70 degrees C) and freeze-drying survival (86.92% viability), outperforming binary systems. During 60-day storage at 4 degrees C and 25 degrees C, encapsulated probiotics retained viability above the critical threshold (>= 6 log CFU/unit), whereas free cells declined rapidly. These findings highlight the potential of PVA-CNF-CNC hydrogel as an efficient delivery system to improve probiotic stability in food applications.
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