. 2019 Apr 17;28(6):1679–1685. doi: 10.1007/s10068-019-00613-9

Table 2.

Tocopherol contents of soybean oil-in-water emulsion (4:6, w/w) with added peppermint extract and different tocopherol homologs during iron-catalyzed oxidation at 25 °C

Additives	0 day	3 days	6 days
Peppermint extract	0.788 ± 0.076^a1	0.624 ± 0.040^a	0.564 ± 0.069^a
Peppermint + α-tocopherol	593 ± 29.7^a	590 ± 9.48^a	605 ± 6.24^a
Peppermint + γ-tocopherol	432 ± 34.8^a	456 ± 21.4^a	448 ± 10.3^a
Peppermint + δ-tocopherol	497 ± 3.62^a	487 ± 38.9^a	473 ± 0.330^a

¹The same superscript means no significant difference in the same row by Duncan’s multiple range test at 5%