The authors regret “Information on the data that supports the results presented here, including how to access those data, can be found in the Cardiff University data catalogue at http://dx.doi.org/10.17035/d.2016.0008716702” was missed to be included in the acknowledgement section.

Thus the acknowledgements should now read:

The work was funded by an Engineering and Physical Sciences Research Council (EPSRC) Case Studentship (EP/H501118/1) in collaboration with NEEM Biotech Ltd. to C.F.W. and an Erasmus lifelong learning programme A.R.V. Thanks to Michael O’Reilly at the Cardiff School of Biosciences Analytical Unit for conducting GC–MS analysis. Information on the data that supports the results presented here, including how to access those data, can be found in the Cardiff University data catalogue at http://dx.doi.org/10.17035/d.2016.0008716702.

The authors would like to apologise for any inconvenience caused.