I am doing a PhD in oil quality and I found this video very interesting. Thank you very much, you are great!

This video was very clear and help full. Thank you for the effort👍🏻

Very nice description!!! I have watched the whole video Also good presentation Keep it up!!!!!

Thanks I have my practical exam and this helped a ton!

Keep it up Doing great 👍 And thanks for vedios

Please keep going, this is really helpful

Super . Your effort is nice and best hard working . Thank you

You can add the use of test for beginners so they can know immediately...thank you...good experiment channel keep going

Hi, how do we calculate the normality of sodium thiosulphate? Thank you for this very informational video.

You didnt proformed this procedure accroding to AOAC method. you must titrate the oil after adding the potassium iodide to remove yellow color and then add the starch solution then again titrate to remove bluish color

Very helpful

thanks, it is very helpful.

thanks for the great video

Good video guys keep growing

Hello.. Is there any relation between free fatty acid and peroxide value?? Means if i get Free Fatty Acid high then should i get peroxide value also high?? Plz relpy

Was very clear and a nice explanation...Thank you😊 Can you please clarify my doubt regarding how to standardize the prepared solution of sodium thiosulphate with potassium dichromate...Plz🙏

Thanks for this great video! Can you explain how standardized the preparade 0.01N sodium thiosulpate solution with potassium dicromate. How much we need to add?

Thank you for sharing this information.

thank you so much for this video

Great video and helpme a lot, and so ¿This techique work for oils of animal origin? thanks!!

Thank you!

May I know thr effecta of Acetic Acid, Potassium Iodide, Water, and Starch soluble in the solution? Also, is the measurement of the reagents added in the solution should be accurate and in order? Thank you.

Thanks mam

nice work

Thanks for your efforts, please can you explain that high value? You know that the value of oil peroxide must be on range from 0.6 to 0.7 in final product , l did the experiment but the value was very high!!!

Dear sir/mam please make the video of dailation test of vanaspati ghee

Can you please do how to check p anisidine value in oil

Hi. Thanks for the great video! Could you inform me why we have to use acetic acid-chloroform solution but not other solutions ?

When I add the 1% starch solution, there is no colour change. What am I doing wrong?

Thank you for this video. As per ISO and FSSAI manual, there is a step "Titrate with 0.1 N sodium thiosulphate solution with constant and vigorous shaking. Continue titration until the yellow colour almost disappears. Add 0.5 ml of starch solution and continue titration till the blue colour just disappears." AOAC has also mentioned the same. But most of the industries also don't follow this step. They generally do titration directly after adding starch indicator. You also did not followed this step in video. Can you please give some clarity on this?

Miss kindly share rencidity and FFA testing procedure of shortening. Thanks.

Thanks for making this video

thanks a million

Plz tall me what is 26.5 . Because you did just one time titration

Hello, Thanks for the video it was very informative I want to know whether this method is useful for excipient study?

Wow this video is really helpful for me thanks❤!! Can I know why the unit is in per kg, when we use our oil sample in gram for the calculation though?

Thanks for the great video! Could you please give the different chemical reaction equations for each step? Thanks.

Lovely

Is it inappropriate to stop titration when the solution's top part turns into white?? not the whole part. In our lab, we stop titration when the top part turns into white.. I want to know is there any difference between these two methods.

Thanks a lot for making video on this reaction. For few mineral oil we check we didnt get yellow colour after add of ki.so we consider it as a nil. U hv used conc acetic acid. We use diluted as per our sop borrowed fm renowned customer. Will it make diff huge diff.

Video for lecithin analysis

For oils we can use sample directly for analysis.. But could u please tell me how to test a food sample ..any digestion process is required??

You are great😂❤❤❤

Thank u👏Where did that 1000 in the calculation come from?

I am using olive oil, and since chloroform is not available in my school, can I use dichloromethane as a solvent instead of the chloroform-acetic acid mixture?

Can I measure the Peroxide Value while the oil is still hot? Thank you for the great video by the way!

hello, please can you tell me if i can use this method if i have a really small amount of fat (extracted from a muscle), if not can you recommend me a better method to determine the peroxide value. thank you.

For acetic acid, can you also use the acetic acid you use in the kitchen?

What if the sample is expected to contain iodine? Would this protocol still be applicable since it is using KI as a reagent? Thank you.

can we also calculate tocopherols by this titration method ?

Can you use acetic acid / Isooctane, instead of the chloroform? And this and all your videos are very HELPFUL!! Thank you!

Thank you for ypour video, i need to check peroxide value in macadamia nuts. Do i have to extract the oil from them or i can grind them into poweder and then add distilled water or (what chemical can be added to extract) and shake. which is the easier way. If i have to extract oil which is the method? Thank you

Range of peroxide value in soyabean refined oil ????

Your caption says you are determining Peroxide value but during the calculation you said acid value 4.09 meq/kg

Which type of starch is use as an indicator? It available as rice, potato and other starch. Can you please specifies its type?

What standard peroxide value ??

Why when i put starch the sample not turning blue/ black it just white

Do you need a blank titration too for the analysis? Some people do a separate titration for the blank sample. Then subtract the titre value of the blank from the sample(Vs-Vb). Before putting that value into the calculation

Super

I tried this one but when I added starch solution, no blue or black colour produced. What is the reason for that?

is it necessary to shake the sample with potassium iodide in dark conditions or this is has no influence on analysis.

Please can you assist me with the soft copy of this method

Phosphate content by spectrophotometer with graph video upload

Pls make the video of preparation & standardization 0.1 N/M of Potassium Dichromatte

Hola, buenas tardes. Podría aclararme una duda que tengo?

Why you add .02g Sodium carbonate in Sodium thiosulfate solution ?

Is there any replacement for chloroform can dichloromethane be used in place of chloroform?

Hello mam.. I wanted to know if i had to calculate the peroxide value of meat sample.. Is it that i had to extract the fat using soxhlet method and to that extracted fat only i can go for checking peroxide value... Cant i homogenise the meat samlpe directly in water and check the peroxide value of the homogenised sample..

Why did you add sodium carbonate?

Anyone here have done Peroxide Value for virgin coconut oil? Does your sample turn black?

Sorry, why must add 30 mL distilled water and shake 1 min to mix ? I would thank you very much😢

Does it matter if I add the thiosulfate while stirring or not? When I add thiosulfate and wait a little bit versus when I add it while stirring, it yields 2 different results. I am not sure which is right. Please help me explain. thanks

For sodium thiosulfate I found supplier that sell this solution and its standard already ? Do I need to standardise it after opening?

Can u plz share the calculation for the amount of sodium thiosulphate to taken in reagent preparation?

My teacher asked what is the relationship between cloud point and melting point do u know?

Is peroxide value test enough to check if the oil is rancid or not?

Can i do this experiment with maize parts

I read you can use cyclohexane for the organic solvent instead of chloroform. Is that true?

I have tested body oil of brand and peroxide value is 34 does that mean is not good in quality ?

I am facing the problem related to Indicator. When I add 1% starch indicator ,No Color change observe. Can you please resolve this issue OR give any suggestion?

When I m adding starch solutions tha sample colour not turn black colour it will be in yellow (for ghee sample ) give me solutions

Can you give me the "Determination of Oil Analysis" manual if I need it?

Can u plz explain mam about 1000 in the calculation plz

Sir may be most of the oil are not showing blue colour when added the starch solution...

Should you do the plank experience? If so, how?

Please help me explain, In this test, do we need to titrate the blanc sample? This video are very helpfull, thank you so much.

After adding Saturated KI solution may need to insert corck immediately?

please please can you explain how to standardise the sodium thiosulphate

Dear madam please make a vedio for wijj solution ..how it impact iodine value...

In your calculations you've calculated the normality of Sodium Thiosulfate. As far as I know equation for normality is N=M*n . Where M is number of moles per Litr and n is the n-factor. In your experiment you used 0.01M Sodium thiosulfate so M=0.01. And I think that the n-factor of Sodium thiosulfate is 2 as it dissolves into 2Na+ and (S2O3)2-. So 0.01*2=0.02N. Nevertheless, in your calculation you've written that N=0.01. Is it a calculation mistake or I don't fully understand calculations? I need this information because I need to calculate the peroxide value in my experiment.

What research question can be formed out of this experiment for IB experiment?

How to standardize sodium thiosulfate by patassium dichromate?

Dear, Mam. I prepared Sodium thiosulphate (0.01N) solution using your formula and tried to determine the peroxide value.But Blue color of the final mixture is not changing even after adding more than 100 ml (Na2S2O3.5H2O). Then my prepared soln even is not working during standardization of sodium thyosulphate by K2Cr2o7. Where is the problem mam,Is there any problem in Na2s203.5H2O solid.

Great video can please mention the concentration % of acetic acid

0.5 g starch soluble added in how much ml of water?

Can you use this method to determine peroxide value in dried milk powder?

can you share determination of Methylene blue value of carbon

I need 0.01 sodium thiosulfat solution

Can we use for titration 0.1 n sodium thiosulfate

Hello Miss, please I wanna know the average of peroxide value that we can get in our experiment for known is the oil have a good quality or not and thanks in advance.