Microencapsulation, Chemical Characterization, and Antimicrobial Activity of Mexican (Lippia graveolens H.B.K.) and European (Origanum vulgare L.) Oregano Essential Oils

Table 6

Stability of free and microencapsulated Lippia  graveolens H.B.K. and Origanum  vulgare L. essential oils at 25% at 4°C. Antimicrobial activity is shown as inhibition zone (mm) using Micrococcus  luteus.

Refrigerated storage; (months)	MXO; essential oil; (mm)	Microencapsulated; MXO; essential oil; (mm)	EUO; essential oil; (mm)	Microencapsulated; EUO; essential oil; (mm)
0	83.08^a  ± 0.09	43.58^a  ± 0.08	75.19^a  ± 0.1	28.33^a  ± 0.81
3	49.27^b  ± 0.99	42.74^a  ± 1.30	25^b  ± 0.01	28.17^a  ± 1.01

Means within a column not showing a common superscript letter are different .