Ello;

I can recommend 2 articles :

1. the first negative rating Resveratol for the elderly:

Gliemann, L., Schmidt, J. F., Olesen, J., Biensø, R. S., Peronard, S. L., Grandjean, S. U., ... & Hellsten, Y. (2013). Resveratrol blunts the positive effects of exercise training on cardiovascular health in aged men. The Journal of physiology, 591(20), 5047-5059.

2. the second one positively assess Resveratol in black berries consumed by athletes:

McLeay, Y., Barnes, M. J., Mundel, T., Hurst, S. M., Hurst, R. D., & Stannard, S. R. (2012). Effect of New Zealand blueberry consumption on recovery from eccentric exercise-induced muscle damage. Journal of the International Society of Sports Nutrition, 9(1), 19.

The IR spectroscopy is not used in these studies - there is no need.

The IR spectroscopy are primarily used to determine functional groups in compounds - but these groups now - are known.

Often are using the fluorometric methods

Sincerely

Pujszo R.

This study may be of your interest:

http://www.nrcresearchpress.com/doi/abs/10.1139/apnm-2015-0370?url_ver=Z39.88-2003&rfr_id=ori%3Arid%3Acrossref.org&rfr_dat=cr_pub%3Dpubmed&#.WX2hNNOGORs

Regards!

Thank you so much