Sustainable Protocols for Cellulose Nanocrystals Synthesis from Tomato Waste and Their Antimicrobial Properties against Pseudomonas syringae pv. tomato

被引:8
作者
Schiavi, Daniele [1 ]
Ronchetti, Riccardo [2 ]
Di Lorenzo, Veronica [1 ]
Vivani, Riccardo [2 ]
Giovagnoli, Stefano [2 ]
Camaioni, Emidio [2 ]
Balestra, Giorgio M. [1 ]
机构
[1] Univ Tuscia, Dept Agr & Forest Sci DAFNE, Via San Camillo Lellis snc, I-01100 Viterbo, Italy
[2] Univ Perugia, Dept Pharmaceut Sci DSF, Via Liceo 1, I-06123 Perugia, Italy
来源
PLANTS-BASEL | 2023年 / 12卷 / 04期
关键词
cellulose nanocrystals; tomato; enzymatic digestion; antimicrobial; bacteria; circular economy; MICROCRYSTALLINE CELLULOSE; ANTIBACTERIAL ACTIVITY; INITIAL ADHESION; WHEAT-STRAW; X-RAY; NANOFIBRILS; EXTRACTION; NANOCELLULOSE; NANOPARTICLES; AGGREGATION;
D O I
10.3390/plants12040939
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
Nanotechnology is rapidly gaining ground in crop protection, with the growing quest for sustainable nanopesticides and nanocarriers for plant pathogen management. Among them, cellulose nanocrystals (CNC) are emerging as innovative agrofood-waste-derived antimicrobial materials. In this work, new chemical and enzymatic CNC extraction methods from tomato harvest residues were evaluated. The obtained nanomaterials were characterized and tested for their antimicrobial properties on Pseudomonas syringae pv. tomato (Pto), the causal agent of bacterial speck disease on tomato. Both protocols were efficient. The enzymatic extraction method was greener, producing purer CNC at slightly lower yield. The obtained CNC, although they weakly inhibited cell growth and did not promote reactive oxygen species (ROS) formation, provoked bacterial aggregation and the inhibition of biofilm production and swimming motility. Both protocols produced CNC with similar morpho-chemical features, as well as promising antimicrobial activity against plant bacterial pathogens, suggesting their potential role in sustainable crop protection strategies. The new protocols could be a valuable alternative to conventional methods.
引用
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页数:16
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