On a paper, draw a schematic diagram on the Extraction of Saponins from Gugo by Lead Method using the procedures stated below.Procedures (Stas-Otto Method):Extraction of Saponins from the Gugo Bark by Lead MethodExtract saponins from gugo by boiling about 10g of small pieces of gugo bark in water. (If necessary, extract first with ether or petroleum ether).Filter and add a neutral lead acetate solution to the aqueous solution; acid saponins, if present, are precipitated as lead salts.To the filtrate (including the washings, concentrated by evaporation), add basic lead acetate to precipitate neutral saponins.Wash the lead precipitate and suspend in water.Decompose by passing H2SFilter PbS and absorbed impurities.Concentrate the filtrate and finally allow to evaporate to dryness or in vacuum over H2SO4.Purify the saponins by CHCl3 and precipitate with ether.Weigh the residue and compute the percentage yield.

The objective of this question is to show the extraction of saponins from Gugo bark using the lead…

Answered: Procedures (Stas-Otto Method):

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

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On a paper, draw a schematic diagram on the Extraction of Saponins from Gugo by Lead Method using the procedures stated below.

Procedures (Stas-Otto Method):

Extraction of Saponins from the Gugo Bark by Lead Method
Extract saponins from gugo by boiling about 10g of small pieces of gugo bark in water. (If necessary, extract first with ether or petroleum ether).
Filter and add a neutral lead acetate solution to the aqueous solution; acid saponins, if present, are precipitated as lead salts.
To the filtrate (including the washings, concentrated by evaporation), add basic lead acetate to precipitate neutral saponins.
Wash the lead precipitate and suspend in water.
Decompose by passing H₂S
Filter PbS and absorbed impurities.
Concentrate the filtrate and finally allow to evaporate to dryness or in vacuum over H₂SO₄.
Purify the saponins by CHCl3 and precipitate with ether.
Weigh the residue and compute the percentage yield.

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