“…The fluorescing spots are visible under UV light at 366 nm. In this condition, no fluorescence is obtained with nonreducing sugars such as alcohols (e.g., mannitol, sorbitol, meso-erythritol, mesoinositol) and C,-C, linked di-and oligosaccharides (e.g., sucrose, raffinose, and trehalose) (75).…”