Nanocellulose has emerged as attractive new biobased reinforcement and gas barrier material in for example sustainable food packaging. Herein we report on Cellulose Nano Crystals (CNC) for application in agriculture, as potential filler and adhesion promoter of microbial biofertilizer formulations. Using different types of bacteria we elucidate the physicochemical characteristics of CNC-based microbial seed coatings and spray formulations and show that CNC impacts mechanical strength of seed coatings, but not microbial viability or germination of seeds. CNC is not UV-absorbant except in combination with gelatine, it´s not a good film former, but due to its color it might help to visualize microbial spray pattern.Keywords: Nanocellulose, microbial formulation, filler, adhesion promoter
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