Saturday, September 27, 2008

Milk as a typical colloid.

All mammals feed their babies with their own milk until the latter have the capability and capacity to eat like their respective mother. But not all mammals milk are the same in composition and concentration.

The basic components in fresh whole milk are fat, water and salts, protein and lactose.

To concentrate or clarify a colloid, filters separate microscopic particles of the liquid. like most colloids, milk contains particles of several sizes. The largest molecules are more than 0.0001 (that is 10 to the power of minus 4) centimetre in diameter.

The smallest are less than 0.000 000 1 (that is 10 to the power of minus 7)

1. As we pour liquid milk into a beaker with the first layer of a filter-paper barrier: Fat molecules of whole milk cannot pass through the tiny openings in filters, but water, salt, and particles the size of proteins and lactose are able to slip through. Water molecule size is 1 nanometre (that is 10 to the power of minus 9)

2. At the second layer of a second line of defence: A semipermeable membrane, a filter with a grid of smaller holes than above, traps particles the size of proteins and lactose. Only salts and water molecules slip through. It at this level the proteins and lactose particles are used to make dry formula milk for babies.

3.The end result: The bulk of the particles in milk never reach the bottom of the beaker. All colloids perform similarly, because of the different sizes of the dispersed particles in them.

Not only the natural fats, salts and distilled water components are missing upon mixing the baby formula milk powder prior to feeding the babies, but also the missing bio-physics energy which was in it if the baby suck it directly from the mother's breasts.

A coating of water molecules surround the fat molecule of a milk particle. Water and oil do not mix, but in whole milk, a protein sheath allows for even dispersal of the fat.

All those "low fat, high calcium" or "low fat, high protein" milk drinks and baby formula milk powder are sick joke to the health and well being of any consumers. Time to wake up to nature law of feeding our humankind-babies. If all mammal milk is the same, why not use rat's milk, or lioness's milk, or elephant's milk, or bat's milk, etc, beside cow milk. We have been had by the dairy industry players for too long, folks.

It is not just the melamine scandal in the milk production itself at fault, but the whole milk industry world wide is at fault.

We, as simple laypersons have little control over most of these politics and scandals around the world in our food chains productions, and so perhaps it is not surprising that attention has focused on dietary contributory factors that have been suggested as the causes of heart disease. Among those which were thought to be dangerous in excess, honesty is the only health policy, - such as processed sugar, coffee, saturated fats, chlorinated water, alcohol and milk - and some that were thought to put a person or baby at risk if they did not get enough, including zinc, fish oils, garlic, unsaturated fats, alcohol(again) and milk (again). Clearly none of these is the primary cause of heart disease, but many of them might be indirectly linked to it. Plainly some of them are way off target, even though they have the support of epidemiological studies.

Here are some profitable verbs (pro-verbs) for us to revise if we are to be wise again in this confused milk industry proverbially 'milking' the public health and wealth 'legally':-
Know thoroughly the condition of your flocks:
keep your mind on your herds;
for riches are not for ever - and is a crown from generation to generation?
The grass appears, yes, the tender grass is seen, when the herbage of the mountains has been gathered in.
The lambs are for your clothing; the goats furnish money for a field.
There will be enough goats'
milk for your food, for the food your household, and a living for your maidens.

How do colloids form?

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