ศูนย์นวัตกรรมเทคโนโลยีหลังการเก็บเกี่ยว

Postharvest changes in white asparagus cell wall during refrigerated storage.

Rodriguez, R.; Jimenez, A.; Guillen, R.; Heredia, A.; Fernandez-Bolanos, J.;

Journal of Agricultural and Food Chemistry Year: 1999 Vol: 47 Issue: 9 Pages: 3551-3557 Ref: 24 ref.

1999

บทคัดย่อ

White asparagus spears were cut 15 cm from the tips and stored for 21 days at 4 deg C. Postharvest changes in the cell walls were studied in relation to the toughening process along the length of a spear that was divided into sections: apical, middle and basal. Polysaccharides underwent significant turnover during storage. Uronic acid concentration decreased in all sections and in almost all polysaccharide fractions, while neutral sugars increased very slightly in the apical section, decreased in the middle and increased in the basal section. Xylose, glucose and galactose were the main neutral sugars implicated in the turnover; xylose accumulated in the hemicellulose fractions of the middle and basal sections, glucose decreased in the hemicellulose and cellulose fractions of the middle section and increased in the cellulose fraction of the basal section, and galactose disappeared mostly from the cellulose fractions of the sections. Lignin increased most in the middle section and least in the bas

al one. No increase was detected in the apical section. No important increases of wall phenolics were detected in any part of the spear. The hardening process was limited only to the basal section.