Pharmacognosy ppt terpenoid menthol drug

Pharmacognosy main topic

1. PHARMACOGNOSY AND
PHYTOCHEMISTRY 2
ND
:--MENTHOL --:
SUBMITTED TO –DR. SARITA KHATKAR PROFESSOR
PHARMACOGNOSY AND PHYTOCHEMISTRY
SUBMITTED BY –RUPAL

2. CONTENT :--
1.INTRODUCTION
2.ISOLATION
3.ANALYSIS OF PHYTOCONSTITUENTS
4.IDENTIFICATION

3. MENTHOL
INTRODUCTION -: BELONG TO THE CLASS OF
MONOTERPENE CLASS .
FAMILY -LABIATAE

4. ISOLATION
•STEAM DISTILLATION –ALLOW A FRESH AIR DRIED MENTHA PLANT TO
DISTILLATION.
•COOLED AND CONVERT BACK TO LIQUID FORM. EG. MENTHA OIL AND
MENTHA WATER .
•MENTHA OIL FLOUT OVER THE WATER.
•MENTHA OIL IS FILTERED AND ALLOW IT TO COOL.

5. ANALYSIS OF PHYTOCONSTITUENTS
1.SAMPLE PREPARATION:-1 MG OF MENTHOL IS DISSOLVED IN 1MG OF METHANOL
(C2H5OH)
2.STANDARD SAMPLE:-MENTHOL
3.STATIONARY PHASE:-SILICA GEL G
4.MOBILE PHASE:-PURE CHLOROFORM
5.DETECTING AGENT:-1%VANILINE REAGENT AND HEAT THE TLC PLATE AT 110°FOR 10 MIN.
6.R.F. VALUE –0.48-0.62

6. IDENTIFICATION
Few drops of sample 5Ml nitric acid
Blue colour
Heat on
water bath
After
more heat
Yellow colour
Indicate the positive of menthol