Class (16) =Microscopic & Physical Evaluation | Quality Control of Drugs of Natural Origin (Part 02)

Download "Solution Pharmacy" Mobile App to Get All Uploaded Notes, Model Question Papers, Answer Papers, Online Test and other GPAT Materials - play.google.co...
Important Link-
1- Swelling Index- • Swelling Index = Deter...
2- Extractive Value- • Determination of Extra...
3- Ash Value- • Determination of Ash v...
4- Adulteration- • Adulteration in Crude ...
Quality Control of Drug of Natural Origin
Confirmation of identity and determination of quality and purity of crude drugs is called evaluation of crude drugs. Besides confirmation of identity and determination of quality and purity the term drug evaluation also covers detection and determination of the type of adulteration present.
Methods of Evaluation:
1. Organoleptic evaluation.
2. Microscopic evaluation.
3. Chemical evaluation.
4. Physical evaluation.
5. Biological evaluation.
Physical Method of Evaluation: Physical constant of the drug is determined
Following are methods of physical Evaluation
1. Determination of moisture content
2. Determination of Viscosity
3. Determination of Melting point.
4. Determination of Optical rotation
5. Determination of refractive index
6. Determination of volatile oil content
7. Determination of ash content
8. Determination of Extractives
1. Determination of moisture content
The % of active chemical constituents is always given on an air-dried basis of the drug Moisture content is determined by heating the drug in an oven at 105 degree C till constant weight.The excess moisture is harmful to the crude drugs because in it’s presence chemical constituent of drug get hydrolyzed.
2. Determination of Viscosity
The viscosity of a liquid is constant at a given temp viscosity is an indication of the purity of drug.
3. Determination of Melting point.
It is one of the criteria to determine quality and purity of crude drugs Contain a number of chemicals, therefore, their melting point is not sharp but it is in a range Beeswax 62 - 650 c
4. Determination of Optical rotation
Optical rotation is determined by the polarimeter certain crude drugs can rotate plane of polarized light to right (dextrorotatory drug) or to left (laevorotatory drugs). Honey + 30 to -15 degree, Clove oil 0 to -1.5 degree
5. Determination of ash content
The residue remaining after incineration (burning) is known as the ash content of the drug. The ash represents inorganic chemicals, Salt & soil attached to the drug It is a criterion to determine quality & purity drug. Aloes- Not more than 5 % w/w
6. Determination of extractive value
Extract value is criteria to determine the quality and purity of the crude drug Different types of Solvents are used to prepare extracts of the crude drug because different chemicals are soluble in the different solvent.
7. Determination of volatile oil content:
Several drugs contain volatile oil for determination volatile oil content or % of volatile oil by Kjeldahl distillation method or Toluene distillation method. Fennel 1.4 % w/ w.
8. Determination of refractive index
Thus the ratio of the velocity of light in the vacuum to its velocity in substance is termed as refractive Index of substance oil. Refractive index varies with the wavelength of the light Arachis oil 1.4678 to 1.4698
Get in touch with the solution by just clicking following links-
Facebook Group- / solutionpharamcy
Facebook Page- / pharmavideo
New channel (Pharmacy Dictionary) - / @pharmacydictionary
Instagram- / solutionpharmacy
E-Mail for official and other work - [e-mail]
LinkedIn- / pushpendrakpatel
#solutionpharmacy #Pharmacologyclass #GPATonlinetest

[@tradetalks01]

Mam you have good sound of knowledge ...you explained better than my class teacher ...again thank you

[@nigarshakeel3187]

Actually she have

[@blacklion_1999]

Same bro...

[@rohilpanwar]

Muje cognosy hard subject laga but jab se aap ke lecture dekha to sabse assan laga thanku man🙏🙏🙏

[@sarthaksharma3851]

Before going on to the next video, each and every video clears my Doubt....Thank you so much Ma'am for such a nice lecture , I wish I could Study whole Pharmacy from you 😊😊

[@nishasaifi5357]

I like your way of teaching very much mam.

[@Lostmind483]

Thank you 😊 ap ki waja sa Mujy pehli dafa pharmacognosy samj m ayii hain

[@patelaaryan2901]

Thank you so much mam for clearing my concepts, classes main toh pharmacognosy samaj hi ni aati thi in college. You are great mam 😊😊😊keep going. Love from Gujarat

[@solutionpharmacy]

Thank you

[@abomagaroma3986]

you are realy special, i have been trying to understan and i foun it was easy eventhough i am non indi. thank you.actual my pharmacognosy teacher is fro indi. thank you once again!!!!!

[@sadhikshaiksadhik6960]

Loved so much of ur teachinggg u have made lessons so easyyyy

[@janmenjaysantra5569]

Mam abb iss lockdown mey college off hay to bahot problem ho raha tha self-study korne Mey but abb easy lag raha hayy . Thank you again 🙏🙏🙏ma'am.

[@nikhilkhatwani827]

Mam ur explanation methods are so much better like our teacher always read from PDF only without explanation but u always write on board to explain each sentence

[@rameshbadlia4543]

Pharmacognosy best teacher...thnxx a lot.. ur notes n lecture super Best

[@karankumarverma1891]

Thank you mam🙏 this video clear all my doubt.

[@janmenjaysantra5569]

Thank you mam😊!!!! It is too good for our understanding mammm🤗🤗🤗

[@snehalnarvekar5382]

Such a nice presentation mam tq 🤗😍

[@masrurakhatun4765]

Thanku mam for the auspicious lecture ❤️🖤

[@architectureAi-f2z]

I am Pakistani. But I like you .Because your study mathod is also good .....and I will have received and watching your all vedio lectures

[@Bittoo25b]

ismay pakistani ki baat kaha se aagyi bae

[@namitadangi461]

Your video is very useful, thank u mam

[@soumyajitsahoo6365]

Outstanding lecture mam

[@im_param]

Wow crystal clear ✨✨❤️😇

[@sumitpatel6357]

Clearly unbeatable.... Nice

[@solutionpharmacy]

Thank you

[@shivammgusain9537]

You are great ma'am😍

[@jaiprakashyadav4494]

Very nice lecture mam

[@soumyaagrawal2023]

Thankyou very much mam... Such a nice video.😊😇

[@solutionpharmacy]

Thank you

[@saritapaikra6796]

Thank u so much ma'am

[@MannanZafar-e6i]

Zabardast 👌🏻

[@zahidismailbughlani6268]

Well explained

[@sujalthakur2471]

Kash aap se hm live pdd paate

[@mohammadmunazir1093]

Thank you very much mam......

[@Pratik_2802]

Thanks mam💕💕

[@pritikumari-hr9eg]

Thanqq so much mam

[@shailjagupta956]

Plz upload a video on pharmacognosy in various system of medicine and plant products # fibres teratogens allergies

[@ramrajayadav7201]

Thank-you mam nice lactur

[@solutionpharmacy]

Ramraja Yadav Thank you.

[@prashantsahu7299]

Very nice

[@nikhilthakare5968]

mam i think you mean unorganised crude drug is identify in microscopic evalution

[@AnjanikashyapKashyap]

Very nic lecture

[@solutionpharmacy]

Thanks for liking

[@Chota_pandaat8]

Mam we need new lecture video because of change in course 🙏🙏🙏

[@edwardngullie1603]

Finally.. Thank you..

[@solutionpharmacy]

Edward ngullie welcome

[@mr.pharma8669]

Thanks mam

[@Abhilawana]

Nice mam

[@niraj9734]

Thank u

[@piyushsonone7]

Lycopodium pa bhi banaey

[@shejutimazumder8219]

Plz upload about secondary metabolites

[@solutionpharmacy]

Sure.

[@shejutimazumder8219]

@@solutionpharmacy u r my saviour 🙏🙏thnx

[@rk..rb..96]

Thanks for you mom

[@gayatrisampadarongali9019]

Mam how do we know that crude drug has been extracted from leaves, flower,roots etc

[@mayankmehendiratta999]

in which video.... different leaf constant like stomatal number were explained?

[@solutionpharmacy]

Not yet uploaded

[@syedumarshah1998]

Thank u mam

[@abdulrahman-yr7er]

Thanku mam

[@solutionpharmacy]

abdul rahman welcome

[@ravipatle6017]

thanks
but d pharma all subject first years and secand years teaching sllybus

[@hoimontipuja6059]

part-1 link?

[@bhumipatel9898]

Quantitative microscopy ki video upload kiya he mam???

[@im_param]

Y this so low response to this video 😬??

[@gauravkumar-ir5hv]

mam plz upload ur videos quickly because I have only one month for sem exam

[@solutionpharmacy]

gaurav kumar I can understand your issu, but she is not fine right now. She will back very soon.

[@gauravkumar-ir5hv]

@@solutionpharmacy ok mam

[@Unst099able19]

Mam plz 6th sem ka herbal drug tech ka sikhaye

[@gauravkumar-ir5hv]

mam next video kab upload ho gyi

[@solutionpharmacy]

Today at 6:00 PM

[@ravindragarg8395]

Chemotherapy chapter upload sir plz

[@solutionpharmacy]

Vasudev GARG I will convey your msg to sir.

[@RajuSingh-gm7mz]

Mam kindly provided the notes of this chapter...

[@solutionpharmacy]

We are providing video so that you may make your own notes

[@RajuSingh-gm7mz]

@@solutionpharmacy but mam u were mentione that our notes are available on Facebook...so

[@solutionpharmacy]

Raju Singh Yes nots are abailble but not of this lecture. Those are general notes.

[@solutionpharmacy]

Raju Singh How to Download Notes in PDF from Solution Pharmacy Facebook Group. Hindi
ruclips.net/video/cE5MAt0J6hs/видео.html

[@mrugnaynisonawane8230]

Hello. Mam plz aad video of sem b pharm of chap 4

[@mampidas5966]

Unit 3 unit 4 and 5 ka video kaha hai mam

[@darshanadhotre4883]

Plz be slow, very often we hv to pause

[@upspecial8368]

Aap extra jyda bolte ho lecture me so please back repeat mat kiya kriye otherwise thanks to you for lecturing...

[@basantikumawarbasantikumaw3781]

Pharmacognosy ka notes

[@shradhdalanjewar8770]

🐒❤️❤️❤️

[@sujalthakur2471]

Thank you so much mam

[@durgeshsingh6447]

Thanks mam

[@sewanikumari1997]

Thank you mam