isolation extraction estimation of artemisinin

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Page 1: Isolation Extraction Estimation of Artemisinin
Page 2: Isolation Extraction Estimation of Artemisinin

PLANT PROFILESYNONYM : Sweet worm wood,sweet annie, sweet sagewort, annual mugwort or annual wormwood

BIOLOGICAL SOURCE : Leaves and the closed, unexpanded flower heads of Artemisia annuaFAMILY : Asteraceae/ Compositae

ACTIVE CONSTITUENT : Artemisinin, dihydro artemisisnin, artemisin, artemisic acid

USES : Effective against malaria & cerebral malaria

Hepatitis B

Schistosomiasis (caused by schistosomes)

Several blood parasitic protozoans

Against a variety of cancer cell lines including breast cancer• Human leukemia• Colon• Small-cell lung carcinomas• Drug-resistant cancers

Page 3: Isolation Extraction Estimation of Artemisinin

• Artemisinin semi-synthetic derivatives are a group of drugs used against plasmodium species (P. Falciparum, P. Malariae, P. Ovale and P. Vivax.)• Chemically, artemisinin is a sesquiterpene lactone containing an unusual peroxide bridge.REQUIREMENTS• Raw material• Solvents ( methanol, n-hexane, n-heptane, benzene, toluene, chloroform, methylene

dichloride, ethyl acetate, acetone, acetonitrile …)•Magnetic stirrer …

Extraction can be done by 2 ways;-a. Soxhlet extraction b. Microwave-assisted extraction

Page 4: Isolation Extraction Estimation of Artemisinin

The raw material used is plant artemisia annua L. The plant was dried and mashed into powder. The chemicals used are methanol, hexane, and ethyl acetate.

EXTRACTION100 grams of powder herb artemisia annua

Macerated using methanol solvent (Erlenmeyer with a magnetic stirrer speed of 700 rpm for 1 hour)

This process is done many times until the methanol layer is colorless

The extract then was evaporated (using a rotavapor vacuum at a temperature of 40 ° C)

Until the extract volume to 100 ml.

Page 5: Isolation Extraction Estimation of Artemisinin

PARTITION OF EXTRACT

Partition the extract using 50 ml hexane

Partitioning done many times until hexane layer become colorless

Two layers got from this process

1. hexane extracts (non-polar fraction) 2. methanol extracts

the methanol extract obtained was added 10 ml of distilled water

partitioned again using 50 ml of ethyl acetate

Partitioning done many times until the ethyl acetate layer is colourless

Again we get 2 layers

1.ethyl acetate extract (semipolar fraction) 2.methanol-water extract (polar fraction)

Each extract was concentrated using a rotavapor at a temperature of 40˚c.

Page 6: Isolation Extraction Estimation of Artemisinin

SOXHLET EXTRACTION AND TEST SAMPLE PREPARATION

100 mg of fine powder was placed into an extraction thimble

extracted with 170 ml of solvent via hot soxhlet extraction method for 6 hours over a water bath

The extract was evaporated and redissolved in 5 ml methanol

10 μl of these test solutions was used for quantification purpose.

Page 7: Isolation Extraction Estimation of Artemisinin

MICROWAVE-ASSISTED EXTRACTION AND TEST SAMPLE PREPARATION

• 100 mg of fine powder was extracted under the influence of microwave energy using solvents

• Extraction parameters (160 watts, 120 s, 10 ml per extraction cycle, two extraction cycles, and cleanup with 2 ml

of corresponding solvent at the end of second cycle of extraction)

• For microwave-assisted extraction (MAE) the same parameters should be followed for every solvent

• The extract thus obtained was evaporated and redissolved in 5 ml methanol

• 10 μl of these test solutions was used for quantification purpose.

Page 8: Isolation Extraction Estimation of Artemisinin

ESTIMATIONS

By 2 methods:-

• TLC Densitometer

• HPTLC method

• TLC METHOD

Mobile phase – ethyl Acetate: hexane (3:97)

Stationary phase -- 60 F254 silica gel

Detecting reagent -- anisaldehyde-sulphuric acid reagent

Spot volume -- 10 μL of test and standard sample spots

Spot colour -- Pink-colored spots of artemisinin

Room temp. -- 25 +- 2˚C

Relative humidity -- 45+- 2%

Page 9: Isolation Extraction Estimation of Artemisinin

• A simple TLC-densitometric technique has been developed for the rapid and accurate analysis of artemisinin in a large number of Artemisia annua plantlets

• at 540 610 nm using tungsten lamp

• Values are plotted in calibration curve (con Vs spot area)

• Extrapolating the graph to x axis give concentration of test sample

Page 10: Isolation Extraction Estimation of Artemisinin

HPLC METHOD

• EQUIPMENT MODEL -- WATERS 501

• COLUMN -- WATERS C18

• DETECTOR -- UV 260 nm

• MOBILE PHASE -- phosphate buffer : methanol (6:4) – PH – 7.9

• FLOW RATE -- 1ml/min

Calibration curve was plotted with diff conc

Page 11: Isolation Extraction Estimation of Artemisinin

SPECIFIC SHEET

• Description -- colour less needles / white crystalline powder, odourless

• Identification -- TLC/ HPLC with std

• Molecular formula -- C15H22O5

• Molecular wt -- 282.3

• Solubility -- partially insoluble in water

very soluble in dichloromethane

freely soluble methanol, ethanol

• MP -- 151-154 c

• LOSS ON DRYING -- NMT 0.5%

• STORAGE -- Tightly closed container

Page 12: Isolation Extraction Estimation of Artemisinin

REFERENCE

•Http://onlinelibrary.Wiley.Com/doi/10.1002/pca.976/abstract•Https://www.Hindawi.Com/journals/cri/2014/361405/•Wikipidea.Org•Herbal Drug formulation, Paridhavi

Page 13: Isolation Extraction Estimation of Artemisinin

THANK YOU