Determination of Moisture Content_A Complete Procedure (AOAC 930.15)
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- Опубліковано 10 лип 2024
- Determination of Moisture Content is the most important proximate analysis. Moisture Content represents the quality of any sample. This procedure complies the AOAC 930.15 method.
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Related Tag:
#Moisture
#Proximate
#Proximateanalysis
#moisturecontent
#lossondrying
Correction of Calculation:
After subtracting 8.876 from 10.0323, it will be 1.1563.
By solving the equation, we get the corrected moisture percent is 11.53 %
it's 11.53%
@@carlosmajola8701 you are right. Thank you.
thanks... My ans is 11.53 but this answer make me confused
@@masbaulsarkerjibon162 Your answer is correct. I did a mistake in this video.
You made a mistake not you did a mistake @@MicroChemsExperiments
Thank you for this it really helped me in my project topic
Very clear... Easy to understand... Thank you 😊
Thanks
Goodness gracious.. What's wrong with the people 'correcting' an insignificant mathematical error? The presentation is excellent and easy to understand. Not only that, you also reply to our questions! Thank you for taking the time to record, post, share, and reply. God bless! (Lower volume music? 😁) I've been following you from the first day you were suggested!!
Well said!
Thank for knowlegde in good practice of laboratory and precise detail in determination of moisture.
You are welcome
Thanks a lot.
It was very helpful for me❤.
Most welcome 😊
Hi that's very helpful for me 😊 thanks
Can you make vedios on this practical topics:-Milling of wheat into flour
Milling of Paddy to brown rice and white rice.
Abhishek Sharma, Welcome. We will work on it. Be with us
Thank you sir for the better explanation .
You are welcome
Glad you liked it
Thank you
Hi. I saw some of the videos showing that to calculate moisture content is: (wet soil weight - dry soil weight) divided by dry soil.
But in this video, it is divided by the mass of the wet soil. Can you explain the differences?
I have been using your method for many years. Now I have been troubled by these different methods of calculation. Thank you
Good one
Thanks
is there video that shows sample preparation for all types of proximate analysis?.
Good information
Thank you
one more thing sir you have to add the wt. of moisture cup before drying and the intial sample wt. also and then subtract it from the final wt. of the moisture cup after drying
Thanks alot sir for sharing calculations and correct answer in pinned comment. ❤
You are most welcome
Thank you for your wonderful videos, but here there is an error in the moisture equation. The weight of the sample should not be put in the numerator.... The final result is that we have lost 8 grams, which is the difference between the two weights. This means that The ride ratio is 80% Approximately
You are right. We did a silly mistake. Please calculate properly by yourself
Good Day, I wanted to ask whether how long the samples should be in the desiccator?
Aprrox 10mimt
At 3.48, there is a beaker with blue mixture content in the oven before the desiccant sample is placed in the oven. What is the blue mixture content?
The blue content in beaker is not the part of this test (Moisture Content Test). Just look at the sample in glass petri dish.
I have a question. Do i need to dried mushroom first for measuring Dry weight moisture content of mushroom. Or i should directly measure the fresh mushrooms.
Fresh mushrooms contains around 80-90% moisture, but for the analysis of nutrient content, this is not possible. So should i take the dry matter or dried it first
It depends on what you want. If you want to determine moisture of fresh mushrooms them go for it without drying. But if you want to dry then you must keep a note on the test result that the analysis was done after drying (on dry basis)
how do you then measure the MNFS content?
Hi quick question, can we also use this method in biomass briquettes?? Thank you!
Yes. You can use this method.
I have one more query .
What if i instantly weight the sample after heating without using desiccator ?
The weight of the hot dried sample will be flactuating contineously due to the fact that the hot sample tends to absorption moisture from the environment very fast. So you must cool the hot dried sample into the desiccator before taking the final weight.
Great information, could you share standard testing ASTM / IEC number ? What is the % acceptance of material PVC which comply moisture resistance
Not sure
can we use oven drying method to determine the moisture content in vegetable pickles ?
Yes. This method is applicable for vegetable pickle sample
thanks, I have a question how the weight of dish after drying is smaller than that weight before?
Because the moisture content is removed from the sample resulting in the loss of the weight.
Svp a ce que la teneur en humidité c'est la même que la teneur en extrait sec , j'attends votre réponse svp
Hi, i want to know if what is the standard moisture content for dried chips, such as potato chips?
We frequently find the moisture content of chips as 1% to 2%.
Follow you country's specification.
Hi. Can i know how to spread the sample if the sample used is homogenised fish muscle? Can i use glass rod to spread it on petri dish? Is it okay if there’s a little sample stick to glass rod? Is it going to ruin the calculation?
You can use glass rod to spread your fish muscle sample. After spreading, take the total weight (combined of Dish and sample weight).
hi! when we dry the sample in the oven, should we cover the sample with the lid or we can just leave it uncovered?
You should leave the sample uncovered allowing the removal of moisture.
Leave it uncovered
How many hours to cooling it in after hot air oven
Hello! Can I use the same method to determine the moisture content of chrysanthemums molifolium flowers 🌸?
Yes you can use.
Assalam o alaikum! I have a question that what will be temperature and time for drying if our sample is a perishable product like fenugreek .
Same temperature
What is the moisture content formula for 50 degree celsius of hot air oven drying @drying kinetics? Plz reply
Sorry. No idea about this. Take help from google.
Last calculation is not a mistake it is preplaned for viewers to calculate itself .
Kindaa
can I use this method to find the moisture content of titanium dioxide pigment @MicroChem's Experoments
You can use
thanks
You are welcome. Stay with us.
Good afternoon! We are trying to determine the moisture content of our muffin. Can we use this method? and how can we prepare our samples? do we need to powderized or grind our samples?
Yes you can! Just powderize or grind your sample before the analysis
Thankyou sir for the great video. Sir I want to know as i have to find moisture content in the rice straw. I have dried and grint it. Now can i find the moisture content of it?
Same method is applicable. Follow this method.
Great content, Thank you! Music is too loud.
Ok. we will lower the music
I have two questions the first one is that, is this procedure can be applied similar to a liquid, semi-liquid and volatile chemicals and the second one is, since temperature and time are inversely proportional, can we reduce the 2 hr drying to 1 hr by raising the temperature to 270'c? thank you!
You can use this method for liquid and semi solid samples but not for volatile substance. Because, at high temperature sample will be removed with the removal of moisture. But if your test parameter is "Moisture & Volatile Substance", then you can follow this method for testing a volatile substance.
Secondly, you can not use temperature higher than 133 degree Celsius. Otherwise the sample will burn out slightly, therefore loss of sample.
Oil moisture content if i done by oven then what's temperature & time need?
Same temperature and time are needed as shown in this video
if use solid sample for example cassava cake can use this method or not?
Naa Kadir, You can determine the moisture content of a solid sample following this method but you have to grind your sample before taking it for testing. Sample Grinding should be done as fast as possible to avoid extra moisture absorption from the environment by the sample.
Hi, please can we use this method to test the % moisture of lubricating oil. Thanks.
Yes. You can use
Hi? Can I ask a quick question? Is it possible to use microwave instead of oven? If so how long should I the soil sample should stay inside the microwave?
Thanks!!
@Centralland Producer No, you cant use Microwave instead of Hot Air Oven. Microwave have strong penetration power which can disintegrate the sample property.
In AOAC official method, it is said to use Hot Air Oven. Thats why we have no option to use Microwave.
Thank you.
@@MicroChemsExperiments Thank you very much!
@@centrallandproducer7977 You are most welcome
Can we determine the moisture content of residue ( after oil extraction from seeds)
Yes. you can.
Can I use this method to determine the moisture content of Engine and gear oils?
You can
Hi, how about in determining the moisture content of parmesan cheese?
This method is also applicable for the determination of moisture content of parmesan cheese.
Grinding or chapping into small pieces is needed before taking sample for testing.
Nice video. Can I use this method for drying bioplastic film?
Yes you can!
@@MicroChemsExperiments Thank you! :)
Please if it is jack beans will you grind it then after that you will put it into water before determination of the moisture content
Grind and blend and then go for the moisture determination
hi,what is the isolation process i this vedio?
Thank you.
It is not clear to me that what did you mean by the "Isolation Process of this video"
Hi, I have a question . Can we use this method on determination of moisture content of biodiesel ?
Nestor Escobella, thanks for your comment. No, you can't use this method for Biodieael sample. Because Biodiesel may contains volatile substance which may loss in high temperature, resulting in sample loss during testing.
@@MicroChemsExperiments Hi? Can I ask a quick question? Is it possible to use microwave instead of oven? If so how long should I the soil sample should stay inside the microwave?
Thanks!!
@@centrallandproducer7977 No, you cant use Microwave instead of Hot Air Oven. Microwave have strong penetration power which can disintegrate the sample property.
In AOAC official method, it is said to use Hot Air Oven. Thats why we have no option to use Microwave.
Thank you.
How do I determine the moisture content of large quantities? How to prepare the sample from big lot of products ?
Mix your last quantity of sample. After mixing, take out homogeneous part of sample (about 50g) from it. Then analyze as per this video.
Hi, I have a question .
Can we use this method for determination of moisture content of dolomite lumps of size 10mm & 20mm? Please clarify.
You can
@@MicroChemsExperimentsthank you. Btw, is there a number that u can give me?
Like what'll be the ballpark figure for the moisture content that one can expect in dolo 10mm & 20mm??
@@varun1036 no idea
@@MicroChemsExperiments alright. Thanx
Can I use this method for determining the moistire content of cookies? Thank you.
You can
Hi there.. If I want to analyze liquid milk, some books mentioned that the milk must be pre-dried over a steam bath before drying in an oven but they did not explained in detail about it. Could you briefly explain to me? Thanks!!
Steam bath help to avoid loss of sample during heat treatment which could happen in oven drying of liquid milk sample. That's why it was said to pre heat the sample in steam bath first
@@MicroChemsExperiments Did you happen to know how liquid sample pre-dried in steam bath? Like the procedures, temperature and time needed to do it? Your reply is much appreciated!
@@amninazifa5244 Keep the steam bath temperature at 120 degree Celsius and dry your sample untill maximum water evaporates. Then go for the oven dry following this video for moisture analysis
@@MicroChemsExperiments Thank you so much!
@@amninazifa5244 You are welcome
Dear microchem's experiment can u creat a video only for how to determine moisture contect of milk..... And calculation......
Same method and calculation
Have you covered crucible while placing it in oven?
No
Hi. Great video. I want to ask regarding the sample preparation. I use the plant leaves sample. What are the best sample preparation for this type of sample? Do we need to dry and grind the sample before we measure the weight on the weighing balance?
Plant leaves should not be dried before the test. Just cut the leaves into small pieces. After that go for the moisture analysis
Please how do I test for moisture and oil content for palm kernel
Same procedure
Can we determine moisture content for sauces such as tomato sauce using hot air oven method?
Yes, absolutely
Is there a specific AOAC reference for doing this? as this method is specifically for feeds.
Hi. when the determination of moisture content test is applicable ?? on a single feed ingredient or after manufacturing complete feed ??
This method is applicable for both of finished & raw materials
@@MicroChemsExperiments thanx
@@ranasulaiman782 you are welcome
Function of dessicator? Cooling?
Why there is 2 time oven dry?
Desiccator helps to cool and prevents the moisture absorption from the Environmental Air.
First drying is done to dry the glass dish. Second drying is done for sample.
Sir, can I do this procedure for post harvest engineering practical or not??
You can apply this procedure?
Hello, I am struggling on how to compute for moisture content because I don't know how to get the weight of thr sample after drying it in a crucible ... please help me
Watch the video completely, again and again. You will get to know how to calculate.
In this video, it is clearly defined. Set an experiment as done in this video and follow the every step. Your problem will be solved.
@@MicroChemsExperiments Thanks for the help, I have just discovered it this morning! Thanks and stay safe!
@@arachnidaaa Thanks to you dear. Stay with us.
If the sample has volatile matter, Does this affect the final result ?
If your test parameter is "Moisture & Volatile Matters" then you will get the actual result.
But if the test parameter is "Moisture Content" then this method is not applicable for the sample which contains volatile matters.
Can we also use this method for determining moisture content in infants milk powders
Yes. You can.
What is the testing difference of powdered sample and solid sample ?
Solid sample should not be tested directly. Solid sample should be grounded before testing
Can you give me one example of low fat low moisture non perishable high calcium food sample for moisture content determination
Not sure.
How did you get 0.08819 when if you subtract the 10.0323 and 8.876 is equals to 1.1563?
Brestney Tu-ayon, Thank you very much for your observations. It is a very simple calculation but we did a big mistake to do this and that's why we are extremely sorry. Please ignore it. Just use the equation for Moisture percent and do the calculation by yourself.
how can i determine the moisture method use is applicable for any type of medium? What can i use as my QC reference?
Any test method should vary with the change of sample matrix. But the method described in this video is applicable for very wide range of samples. So, you can use this as reference method. Method number is given in the video title.
@@MicroChemsExperiments thanks for the feedback!
@@nazirahkidal8057 You are welcome.
Can we use this method in rice powder and or powder items??
Yes. You can
if i directly done oven then how many temperature & time need?
Please follow the video strictly to get the accurate results.
Can we use this in drying leaves?
Clark Veneracion, Yes. You can use this method for drying leaves.
Can this method be used for the compositional analysis of cheese?
Yes
Is it temperature of the oven used applicable for all chemical ?
Nur Solehah, this is not the ideal method to determine the moisture content of a chemical sample. But you can analyze chemicals having boiling point higher than 200 degree Celsius according to this video because volatile chemicals evaporates before the moisture evaporation.
MicroChem's Experiments thank you for your info
@@nursolehah3276 you are most welcome
HI can i ask why is it necessary to weigh the sample material at
the shortest possible time?
Spatulla, Balance Machine, Glass Petri dish
@@MicroChemsExperiments why we need to weigh the sample as early as possible sir?
@@mriresada6351 Because moisture from the environment can be absorbed by the same if we expose the sample in the environment for long period of time. Absorption of moisture by the sample from the environment may give questionable test results. Thats why we should weigh sample fast as much as possible.
@@MicroChemsExperiments THank you so much for the response sir!..It helps me understand it further.
@@mriresada6351 You are most welcome. We are family.
Why do you use the desiccator?
To avoid moisture absorption from the environment during cooling.
Can we do this method for fish flesh moisture content analysis ?
No. Modify the method by drying at 130 degree Celsius for 3 hours
Is it suitable to use flour as a sample for this method?
Yes, it is suitable. You can use this method for flour.
Why samples are not heated to higher temperature than specified in the exercise?
Excessive heat will cause the burning of sample partially which may lead to the false results.
Thank you so much
@@NMKL211 most welcome
Hi,Can I use this same procedure to detect the moisture content in dry fruits such as Almond,walnut hazel nut etc?One more thing Can I use 3 g of sample and kept it in oven for 3 hrs at 105 degree in case of dry fruits?Thank you.
Yes. You can try this method for dry fruits. The time & temperature you mentioned is fine but sample weight should be minimum 5g.
@@MicroChemsExperiments Thank you.
@@sandhyaranjith427 you are welcome
@@MicroChemsExperiments while using the automatic moisture analyzer what is the time,temperature and weight of the sample we will use?Thank you.
@@sandhyaranjith427 don't know. Follow the manufacturer's instructions.
Why does the temperature of the oven need to be 135 and not 105-110?
AOAC reference method said to use 135 degree Celsius
How to determine the temperature and maximum temperature
Your question is not related to this test. Please find your answer from Google.
What is the procedure for determination of moisture/ water content in liquid milk?
Please also share a video on Fat content determination.
Same method for moisture. Fat determination video is already uploaded.
Thanks but I can't able to open the video on Fat content determination. Please help here with a link.
@@Fas880 ua-cam.com/video/muswKsqvGnM/v-deo.html
@@MicroChemsExperiments thank you for sharing. Can we follow the solvent extraction with hexane in soxhlet apparatus after moisture content determination in coconut milk? We can use a single sample, let's say 10 grams of liquid milk. Use IR or Oven method to determine the moisture in liquid milk. By subtracting the moisture weight, we'll get total solids weight. Use total solids weight to run the soxhlet extraction and determine the fat content. Finally we'll also get the non-fat solids. I guess this way is more faster and convenient to get all 4 components from a single sample. What do you think?
Can you please tell what's the reference of sample weight.
Reference is given in the video title. We modified slightly
@@MicroChemsExperiments OK thanks
Hello, what type of glove was used (material)?
We used Nitrile Rubber Gloves for regular lab work and we used polyvinyl gloves a heat and acid proof gloves.
@@MicroChemsExperiments Thanks!
@@edmilsondantas1219 You are welcome
Hello sir, can we use this method to measure the moisture content of mayonnaise
Yes
Thank you for your reply sir
Add new video sedimentation value process for msida
Noted
Hello, can i ask what sample you used?
I used white wheat sample in this moisture analysis test.
@@MicroChemsExperiments thank youu 🤗
@@jhenabana5294 Its my pleasure 😊😊
Calculation is wrong ❌ after subtracting 8.876 from 10.0323 its 1.1563 so how u write 0.08819 ⁉️ and after completing its answer is 11.46 % ✅
Charu Saini, you are right. There is a silly mistake in the subtraction. Plzz ignore the calculation and solve the equation by yourself. Thank you.
Please right correct calculation
@@MicroChemsExperiments
Pls do edit it if possible. Might it is silly too. Before uploading pls check it. All will not notice and while doing so people might get confusion. Thank you for your efforts do continue
@@balufoodie4363 Thanks
Your mention reference show different formula
Hi there I've also calculated it down and moisture content came to be about 88.5% and and total solids 11.5%
Mohd Aamir Sultan Khan, we did a silly mistake in the calculation (In the subtraction part). The Moisture content for this test will be 11.52%. Please use the calculation given in the board, put the values and solve the equation. Thank you.
@@MicroChemsExperiments okk
this can also be used to measure moisture content oil sample? kindly guide me
Yes. You can
@@MicroChemsExperiments Thankyou for your response ❤ furthermore is it necessary to place in steam bath.? For liquid samples or not.?
@@rimshasarwer4229 not needed
can I do this experiment without desiccator ?
Without using desiccator, Moisture will be absorbed by the sample from the environment after drying. Thus the result will not be accurate.
What is the difference between moisure content and humidity
Please take help from Google. Many articles are available on the topic. I think you will not face any problm to get the answer. Thanks
Hi. Can we use this method on determination of moisture content for Honay ?
Yes. This method is also applicable fot honey sample.
Thanks for reply. Please also tell me cab i use this method on determination of moisture content for jaggery and spices i.e turmeric and cayenne. Please reply
@@hafizahmad2135 Yes. You can use.
So this is how we find total solid ?
Yes. This is how we find Total solid.
Right calculate = 11.46% moisture
the refernce you provided have different formula kindly guide me or provide authentic reference, waiting for your response. !
Formula is same as AOAC 930.15 mentioned but slightly simplified
is one measurement/determination is enough. Most of the time triplate is taken
In AOAC official method, triplicate test is not said to be done. But you can do in test in triplicate to increase your confidence level on the test results.
How come the weight increases after drying?
No way to increase