December 22, 2024, 08:18:07 AM
Forum Rules: Read This Before Posting


Topic: milk  (Read 7367 times)

0 Members and 1 Guest are viewing this topic.

Offline BaO

  • Regular Member
  • ***
  • Posts: 90
  • Mole Snacks: +3/-4
milk
« on: July 05, 2006, 11:04:36 PM »
i've heard that milk contains bases , is it true?

Offline mike

  • Retired Staff
  • Sr. Member
  • *
  • Posts: 1245
  • Mole Snacks: +121/-35
  • Gender: Male
Re: milk
« Reply #1 on: July 06, 2006, 01:24:45 AM »
You mean cow's milk?

Rice milk, coconut milk etc will be different.

Milk is an emulsion.
There is no science without fancy, and no art without facts.

Offline Will

  • Organic Dude
  • Chemist
  • Full Member
  • *
  • Posts: 400
  • Mole Snacks: +58/-2
  • Gender: Male
Re: milk
« Reply #2 on: July 06, 2006, 08:28:43 AM »
i've heard that milk contains bases , is it true?

Last time I took the pH of milk it was 6.74. That was British cows' milk, I'm sure the base content of milk varies from animal to animal.

Offline constant thinker

  • mad scientist
  • Sr. Member
  • *****
  • Posts: 1275
  • Mole Snacks: +85/-45
  • Gender: Male
Re: milk
« Reply #3 on: July 07, 2006, 01:57:42 PM »
I'll agree with Will about cow's milk being slightly acidic. A year ago I took the pH of milk in Biology class because I was bored and they had an electronic pH tester. I got about 6.6. I wound up writing it down in my notebook.

I know that if milk gets to acidic the proteins coagulate. This is more commonly known as yogurt.
"The nine most terrifying words in the English language are, 'I'm from the government and I'm here to help.' " -Ronald Reagan

"I'm for anything that gets you through the night, be it prayer, tranquilizers, or a bottle of Jack Daniels." -Frank Sinatra

Offline Borek

  • Mr. pH
  • Administrator
  • Deity Member
  • *
  • Posts: 27885
  • Mole Snacks: +1815/-412
  • Gender: Male
  • I am known to be occasionally wrong.
    • Chembuddy
Re: milk
« Reply #4 on: July 07, 2006, 02:21:54 PM »
I know that if milk gets to acidic the proteins coagulate. This is more commonly known as yogurt.

AFAIK whether it is yogurt or something else depends on the bacterias involved. Different strains produce different composition of acids which in turn changes taste and properties of coagulated proteins.
ChemBuddy chemical calculators - stoichiometry, pH, concentration, buffer preparation, titrations.info

Offline constant thinker

  • mad scientist
  • Sr. Member
  • *****
  • Posts: 1275
  • Mole Snacks: +85/-45
  • Gender: Male
Re: milk
« Reply #5 on: July 07, 2006, 09:15:02 PM »
Hmmm. Point taken Borek. I forgot about different strains of bacteria doing different things to milk.
"The nine most terrifying words in the English language are, 'I'm from the government and I'm here to help.' " -Ronald Reagan

"I'm for anything that gets you through the night, be it prayer, tranquilizers, or a bottle of Jack Daniels." -Frank Sinatra

Sponsored Links