Determination of Vitamin C Content in Fruit Juices Part 2

[@liza3337]

These videos (Parts 1 and 2) have helped me to understand the cryptic USP monograph method. Thanks so much, nice video.

[@liza3337]

The person who reminded us that you titrated 10ml samples of the juices and therefore the results are mg of ascorbic per 10 ml of juice is correct. Please fix this video to account for that.

[@ibrahimrafeq6590]

isn't it 2.945 mg ascorbic/10 mL orange juice, and therefore 29.45 mg ascorbic in 100 mL orange juice?

[@liza3337]

Correct

[@christiewang566]

how did you make the iodine solution?

[@Kate-rj7dz]

The final average is wrong. It is mg/100ml. You have to divide it by 100 to get it to mg/ml

[@sabreenajahan7544]

Please tell, what is the molarity of Iodine solution used here.

[@pioter2301]

So the guy says that be careful with lemon juice as this is Vitamin C rich and reacts fast and we ended up with lowest vit c content for lemon in the table. can someone explain please ?

[@mr.hrxyz7837]

Can you share 1st table image

[@riwaabbass792]

what is the concentration of iodine

[@geofferyromany4634]

So conclusion is apple juice had more conc of ascorbic acid?

[@timotebaluyot2417]

May I know which juice has the highest amount of vitamin C

[@matveylugovoy4042]

Very useful, thanks a lot

[@sumaiyasadia9668]

Google shows that orange juice contain 52.4mg of vitamin c in 100ml juice
Bt ur result is 251.75mg/ml
Is that ok??

[@liza3337]

Depends on the oranges, the harvest time and production method, not to mention the age of the juice, as ascorbic acid degrades in solution over time.

[@zhench6838]

The solution in the buret is iodine?????

[@matveylugovoy4042]

Yeah

[@deencog]

Why did you guys use concentration of ascorbic acid in the standard solution to calculate the average ascorbic acid

[@hatemfly1036]

is the final result = mg\ml 251mg vit c \ ml sample ?

[@danielo9799]

yes

[@oweniciascarlett3313]

Thank you very much

[@ahmedbinzema427]

Can we use a corn flour

[@liza3337]

Hmmm. Worth a try!

[@parfaitlouiz1492]

Please is it useful also for milk ??

[@Kamakshishuklaisbornamazing]

Obv not

[@znng9762]

Can you translate please

[@znng9762]

To Arabia