What are glycosides in pharmacognosy?

Defination:-glycosides are define as organic compound from plants and animal source, which on enzymatic hydrolysis gives one or more sugar moieties along with anon sugar moiety. Sugar moiety is called glycon and non sugar moiety is called aglycon or genin.

What are glycosides PPT?

A glycoside is a molecule consisting of a sugar and a non-sugar group, called an aglycone. The sugar group is known as the glycone and can consist of a single sugar group or several sugar groups.

What are the type of glycosides?

Another classification of glycosides is based on the chemical group of the aglycone (Table 12.1). Some examples include anthraquinone, coumarin, cyanogens (cyanohydrin), flavonoids, glucosinolates (or thioglycosides), phenols, steroidal, terpenoids, and saponins.

What are the physical characteristics of glycosides?

Colorless, solid, amorphous, nonvolatile (flavonoid- yellow, anthraquinone-red or orange. Give positive reaction with Molisch’s and Fehling’s solution test (after hydrolysis). Most of them have bitter taste (except: populin, glycyrrhizin, stevioside). Odorless except saponin (glycyrrhizin).

What are the benefits of glycosides?

Flavonoid C-glycosides showed significant antioxidant activity, anticancer and antitumor activity, hepatoprotective activity, anti-inflammatory activity, anti-diabetes activity, antiviral activity, antibacterial and antifungal activity, and other biological effects.

How glycosides are formed?

Glycosides are formed when the anomeric (hemiac-etal or hemiketal) hydroxyl group of a monosaccharide undergoes condensation with the hydroxyl group of a second molecule, with the elimination of water.

What do you understand by glycosides?

Definition of glycoside : any of numerous sugar derivatives that contain a nonsugar group bonded to an oxygen or nitrogen atom and that on hydrolysis yield a sugar (such as glucose) Other Words from glycoside Example Sentences Learn More About glycoside.

How do glycosides work?

Cardiac glycosides are a class of organic compounds that increase the output force of the heart and increase its rate of contractions by acting on the cellular sodium-potassium ATPase pump.

What is glycoside?

Lecture delivered by Muhammad Tanveer Khan to Batch:01093 (F09) in The University of Lahore, Pakistan. Save Pharmacognosy Lecture # 1 (Glycosides) [By, Sir Ta… For Later A glycoside is an organic compound, usually of plant origin, that is composed of a sugar portion linked to a .non-sugar moiety Sugar portion ..

What is aglycone and glycosides?

Upon hydrolysis, yield aglycone (nonsugar) also called genin (biologically active) and one or more glycones (usually reducing sugar). Pharmacognosy I Lecture: 5, Glycosides

What are the glycosides found in the plant?

The plant contains important glycosides like: – 1- Ginsenoside (ginkgolides). 2- Panaxoside. 3- Chikusitsusaponin. 4- Phytoestrogens. Pharmacognosy I Lecture: 5, Glycosides

What are the 25 classes of glycosides?

• Saponin glycosides • Anthraquinone (anthracene) glycosides • Cyanogenic glycosides • Steroidal (triterpenoid) glycosides • Alcohol glycosides • Phenolic glycosides 10-Jan-17 25 Pharmacognosy I Lecture: 5, Glycosides 25 Classes of glycosides