Laffort's suggestions found here are some of the best advice money can buy in the form of a powder or liquid on your doorstep in a few days.
Aromas in White Wine Making
Primary/ Varietal Aromas
Secondary/ Fermentation Aromas
Tertiary/ Aging Aromas
Preserving Aromas at Picking
Extracting and Preserving Precursors
Preserving Aromas During Aging and Bottling