Determination of Extractive Value = Water & Alcohol Soluble Extractive Value & Calculation (English)

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EXTRACTIVE VALUE
Water-soluble extractive value plays an important role in the evaluation of crude drugs. The less extractive value indicates the addition of exhausted material, adulteration, or incorrect processing during drying or storage or formulating. Extractive value is of two types- water-soluble and alcohol soluble that depends on the solvent used. if the water is used as a solvent it will be known as water-soluble extractive value and if alcohol is used in the place of water than it will know as alcohol soluble extractive value.
Determination of Extractive values
These are useful for the evaluation of a crude drug. Gives an idea about the nature of the chemical constituents present in the crude drug. Useful for the estimation of constituents extracted with the solvent used for extraction. Employed for material for which as yet no suitable chemical or biological assay exists.
Preparations of the extracts
Cold Maceration
1. Macerate 5g of the powdered crude drug with 100 ml of solvent in a closed flask for 24 hours, shaking frequently during first 6 hours and allowing to stand for 18 hours. 2. Filter rapidly taking precaution against loss of solvent, evaporate 25ml of filtrate to dryness in an evaporating dish to avoid the decomposition of natural metabolites, dry at 105 degree C, and weigh.
3. Calculate the percentage of water, alcohol, chloroform and petroleum ether soluble extractive value with reference to the air dried drug.
Importance of Extractive values: -
Extractive values are primarily useful for the determination of exhausted or adulterated drugs. The extractive value of the crude drug determines the quality as well as purity of the drug. Thus, alcohol and water soluble extractive values were determined.
After watching this video you will be able to answer- what is extractive value, the importance of extractive value, what is extraction, how to extract plant part, the importance of extraction value, how to determine extraction value,
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[@nighatgull6116]

Thank u so much, plzz upload more videos

[@pranaykore3263]

Thanks

[@pranaykore3263]

Kindly improve sound during recording...it's very low...
Lecture was an very good

[@solutionpharmacy]

PRANAY KORE We are sorry for the issue sir. This problem is in this video only. We will improve on our upcoming video. Thanks for your suggestion.

[@pranaykore3263]

SOLUTION .....ok.. thanks sir...for ur kind help

[@solutionpharmacy]

PRANAY KORE Pleasure sir. Its your channel. Feel free to suggest any improvement.

[@Kavitapatel2002]

What's different between hot extraction method and cold maceration method for determining extractive value...??

[@VikashKumar-id2yk]

Mam , Ether spluble extractive value me ether kon sa used karte hai.

[@ZaiqaLahoreKa]

Maan TDS And Extractive value same hoty k diffrence hai agr difference hai tuo explain kr dein. Regards

[@josanv]

where i can get that form....which i can print out and note down my project readings..it will be helpful and esay to do that way

[@solutionpharmacy]

vpsj thank you for writting us. Although that was not form. We have typed that to to use in video. If you need that solution can send you. Please mail to [e-mail] and mention the form name in subject. You will get it v soon thenafter.

[@josanv]

Thankyou for repyling . I emailed you the forms i need .
Your videos are so helpful for me in my project .
Highly appreciate your effort.

[@solutionpharmacy]

vpsj thanks alot. We have also replied your mail along with format you were asked. Thank you for your support.

[@nipungupta8363]

Which crude drug is taken in this experiment

[@josanv]

Can i use this procedure as Ethanol soluble extractive ?

[@solutionpharmacy]

vpsj yes just change water with ethanol

[@riyadsouza5911]

Hello..very helpful..but calculation part is a bit difficult nd do we need to use distilled water or normal tap water??

[@ashutosh_Tiwari5089]

Distilled water

[@ranikonde9728]

Hi mam muze Kaya ye calculation ka photos send kr sakte hai

[@solutionpharmacy]

You can take screen shot

[@ranikonde9728]

@@solutionpharmacy ha mam thik hai o Kya hai ki uska screen shot clear nahi AA RHA that bs isliye bol rahi thi

[@solutionpharmacy]

Video quality badha kar le lo screen shot

[@ranikonde9728]

@@solutionpharmacy ha mam maine liya screenshot .ty