Page 60 - PG 504-theoretical notes-phyto-1-2024-2025..

Clinical pharmacy PharmD program Third level Phytochemistry-1 (PG-504)

4. Osmotic diuretic (I.V., -5% solutions made with physiologic salt solution or

Ringer's solution).

5. For manufacture of candy, ice-cream and bakers products.

Liquid glucose:

• It is obtained by incomplete hydrolysis of starch by dil. HCl, heat and

pressure. Acid is neutralized and the solution is centrifuged, filtered and
evaporated to syrup.

• It is a mixture of: glucose with dextrin, maltose and water.

• It is a colorless or yellowish, thick, syrupy liquid, nearly odorless with sweet

taste and very soluble in water.

Uses: It is used as sweetening agent, as substitute for sucrose and as an excipient

for massing of pills and not used for preparation of I.V. injections of

glucose.

2) D-(+)-Galactose:

• Seldom occurs in nature, or binds with glucose to form

sugar in milk (lactose).

• D-Galactose is also present in polysaccharides such as agar

and linseed mucilage

• Galactose and glucose are epimers at carbon 4 and D- Galactose

interconversion is catalysed by enzyme epimerase.

Preparation:

By hydrolysis of agar-agar, linseed mucilage or lactose.

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