บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Glycosidase activities and polysaccharide accumulation in sugar cane stalks during post-collection impairment.

Martinez, M.; Legaz, M. E.; Paneque, M.; Domech, R.; Armas, R. de; Medina, I.; Rodriguez, C. W.; Vicente, C.;

Plant Science (Limerick) Year: 1990 Vol: 72 Issue: 2 Pages: 193-198 Ref: 20 ref.

1990

บทคัดย่อ

Glycosidase activities and polysaccharide accumulation in sugar cane stalks during post-collection impairment.

Sugarcane stalks accumulate sucrose initially and then polysaccharides including fructans. These polysaccharides are hydrolysed by a fructanase which requires Mn2+ for its activation. Studies with harvested stalks from field-grown plants of cv. Cuba 374-72 showed that fructanase activity developed rapidly during the first 2 days of post-collection impairment and then decreased and stabilized. The fall in the amount of mid-MW carbohydrates after the fourth day of post-collection impairment could be seen as a consequence of the stabilization of fructanase activity. This hydrolase activity was inhibited by an excess of Mn2+ as well as by reducing sugars accumulated in the juices.