protein solution for food tests
protein solution for food tests
Hi,
We are about to do a prac exam for yr8 using food tests , the teachers want an 'unknown solution' for the kids to test and they want that to be protein and starch solution. What would you be using as the protein solution, I was thinking about peptone, but I am not sure it would work as protein gets broken down by pepsin into protein, not sure if it is actually protein them What would you recommend using as a protein solution?
Sassi
We are about to do a prac exam for yr8 using food tests , the teachers want an 'unknown solution' for the kids to test and they want that to be protein and starch solution. What would you be using as the protein solution, I was thinking about peptone, but I am not sure it would work as protein gets broken down by pepsin into protein, not sure if it is actually protein them What would you recommend using as a protein solution?
Sassi
Re: protein solution for food tests
Hi Sassi,
You could use egg white. Try mixing with a little water.
Ev
You could use egg white. Try mixing with a little water.
Ev
Re: protein solution for food tests
Hi Sassi,
we use peptone as protein. It is easier than egg white and last longer. just make sure you use very weak solution. Tip of a spatula in 50ml water.
Have a nice weekend
lada
we use peptone as protein. It is easier than egg white and last longer. just make sure you use very weak solution. Tip of a spatula in 50ml water.
Have a nice weekend
lada
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Re: protein solution for food tests
I always use gelatine. It don't stink like egg!!
Re: protein solution for food tests
I've always used Geletin in class then egg white for prac exams, you buy one of thoes egg shaped plastic pavlove mix things from supermarket no mess no fuss no smell
- noona
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Re: protein solution for food tests
I'm with Graham use the Egg egg for a Pav works great
Noona
Noona
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Re: protein solution for food tests
We use gelatine too.
- Labbie
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Re: protein solution for food tests
We shall try the egg pav next week, great idea thanks
Regards Labbie
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Lab Manager/Lab Tech, mind reading etc etc
Now retired
Re: protein solution for food tests
Hi,
What about milk
Mazza
What about milk
Mazza
Re: protein solution for food tests
Gelatin works well - no smell no fuss...
Re: protein solution for food tests
Sorry, but I have to ask a stupid question... Doesn't gelatin set?
Re: protein solution for food tests
Yes it sets but only when in the fridge. It melts at about 30 degrees hence you cannot use gelatine as a substitute for agar.....ends up being a nasty smelly mess.
Re: protein solution for food tests
Great, see you learn something new each day! Thanks heaps for your help, I shall ask teacehrs what they prefer.
Sass
Sass
Re: protein solution for food tests
Hi Sassi, you don't use anywhere near the amount of gelatin as for jelly, but it's still a giveaway in a prac exam as it goes gluggy, and if you leave aq week and take the lid off you need a gas mask!
Re: protein solution for food tests
Also for the starch, I like to use water that I have boiled a bit of rice in, works so much better than the cornflour they sent me when I ordered starch last time.