Scientific Reports 5: Article number: 7928; published online: 21 January 2015; updated: 07 November 2016

This Article contains typographical errors.

In the ‘PV, AV, and Totox’ section of the Methods, the formula for the p-anisidine value reads “10 × [1.2 × (A2 − A1)]/m” but should read “[10 x (1.2 x A2 - A1)]/m”.

The calculations used to derive peroxide value (PV) produced a concentration in meq/kg and not in meq/l as stated in the Article. “meq/l” should read “meq/kg” in the first and third paragraphs of the ‘PV, AV, and Totox’ section in the Methods; and in the title of Table 3, and the headings of columns 9 and 10 in Table 3.