Development of antimicrobial hydrogel with edible formulations to control foodborne pathogens on food surfaces consumed raw

Abstract This study developed antimicrobial hydrogels to decrease the foodborne pathogen cell counts on raw food surfaces. Hydrogels 1 (5% sodium alginate +1% agar +0.2% calcium chloride (CaCl2) + 40% glycerol) and 4 (1% κ-carrageenan +1% xanthan +40% glycerol), loaded with 0.5% grapefruit-seed extract or 0.5% citrus extract exhibited the highest antimicrobial activities (p  Industrial relevance text For raw beef and fish consumption, non-thermal decontamination technologies are necessary. Thus, antimicrobial hydrogels were developed in this study with edible components. When the antimicrobial hydrogels were attached on the meat surface, foodborne pathogens were significantly reduced within 1 min. Therefore, the antimicrobial hydrogels could be used to improve the food safety for fresh meat consumed raw.