chlorophyll-a and cinnamaldehyde

This study synthesized and characterized ZIF-8 nanoparticles encapsulated with trans-cinnamaldehyde oil (TC) and evaluated their antimicrobial effectiveness against Escherichia coli O157:H7 on fresh spinach leaves. The antimicrobial activity of different mass ratios of TC-encapsulated ZIF-8 against E. coli O157:H7 (ATCC 43895) strain was assessed and the best mass ratio of 1:2 TC to ZIF-8 identified. Spinach leaves were treated with (1) 0.5TC@ZIF-8_PL nanoparticle complexes solution, (2) 200 ppm chlorine, (3) free TC, and (4) sterilized distilled water (control). All sample groups were rinsed for 1 min, dried in a biosafety cabinet, weighted, and packed in sterilized Whirl-pk

Topics: Anti-Infective Agents; Ascorbic Acid; Carotenoids; Chlorine; Chlorophyll; Colony Count, Microbial; Escherichia coli O157; Food Contamination; Food Microbiology; Nanoparticles; Plant Leaves; Spinacia oleracea; Water; Zeolites