Page 354 - Pharmacognosy 2 PG303
P. 354

ical Pharmacy-Pharm D

d Extracts

y evaporating the aqueous decoction of parts of certain plants

                                          Gelatin

                   Is the protein obtained by boiling the collagenous
                   tissues of animals (skin, tendons, bones) with water,
                   evaporating the aqueous extract and drying the
                   residue in air.

                                                                     Sheets or powder

                                   Pale yellowish
                                     Brittle
                                     Slight
                                     Slight
                   Insoluble in cold water
                   soluble in hot water →translucent jelly on
                   cooling

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