White asparagus (Asparagus officinalis, L.) spears were harvested
from commercial farms in the regions of Imathia and Pella, Greece.
The spears were hydrocooled and transported to the laboratory
within 3 h after harvest, under refrigerated conditions. Straight,
undamaged samples, around 18–22 mm in diameter, with closed
bracts were carefully selected and cut at 18 cm from the tip