1. Chemistry and Biochemistry Laboratory, Animal Science Research Group, Department of Agriculture, University of Reading, P.O. Box 236, 1 Earley Gate, Reading, RG6 6AT, United Kingdom
2. Department of Food and Nutritional Sciences, University of Reading, P.O. Box 226, Whiteknights, Reading, RG6 6AP, United Kingdom
3. ISIS Pulsed Neutron and Muon Source, Science and Technology Facilities Council, Rutherford Appleton Laboratory, Harwell Science and Innovation Campus, Didcot, OX11 0QX, United Kingdom
4. Reading School of Pharmacy, University of Reading, P.O. Box 226, Whiteknights, Reading, RG6 6AP, United Kingdom