บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Pre- and postharvest metabolic changes in table grapes.

Miceli, A.; Massignan, L.; Traversi, D.; D'Errico, G.; Leo, P. de;

Rivista di Viticoltura e di Enologia Year: 1995 Vol: 48 Issue: 1 Pages: 21-28 Ref: 8 ref.

1995

บทคัดย่อ

Pre- and postharvest metabolic changes in table grapes.

 

The amount of total, soluble and insoluble structural polysaccharides increased in cv. Italia grapes during harvesting and then remained constant whereas the pectin and KOH-soluble (4 M) hemicellulose content decreased during harvesting and subsequent cold storage. Pectin quality also changed with an increase in pectin methylation and a decrease in protopectins. Gel chromatography of pectins and hemicellulase extracted at harvest and after cold storage showed a decrease in high-MW polymers and an increase in low-MW ones. At the same time, the amounts of arabinose, galactose and uronic acid in the structural polysaccharides decreased while xylose and glucose increased.