Objective The efficacy of hetastarch(made in China)pretreatment for prevention of complications(hypotension,et al) in combined spinal-epidural anaesthesia for cesarean section was evaluated.

In this work,the glutinous maize starch was used to produce the hydroxypropylated starch with freeze-thaw stabilization.

A wet-milling procedure was adopted in laboratory to isolate starches from 17 normal corn hybrids,and hydroxypropylated starches were prepared.

The waxy corn starch was used to produce the hydroxypropylated starch with freeze-thawing stabilization.

Synthesis technology and property of hydroxypropyl starch by using potato starch as raw material, propylene oxide as etherization reagent and sodium hydroxide as catalyst, were studied in this paper.

The hydroxypropyl starch was prepared via reaction of corn starch with 1,2-epoxypropane using fatty alcohol polyoxyethylene ether (FAPE) as a catalyst by dry process.

The digestibilities of hydroxypropyl starch and its pastes were investigated with In_Vitro model .

Reaction of wheat starch with propylene oxide in aqueous slurry for producing hydroxypropyl wheat starch was investigated.

Effects of the temperature on determination of Hetastarch′s characteristic viscosity;

Effects of epidural administration of 60 g/L hetastarch on spinal cord and spinal nerve roots in rats;