Thursday, 20 October 2011

Start a Soy Milk Powder and Soy Yogurt Making Plant

(144). Start a Soy Milk Powder and Soy Yogurt Making Plant 

Soy milk powder is soy milk from which all water has been removed, similar to cow's milk powder. Soy milk powder has a white to beige colour and mixes readily with warm or cold water. It can be made of plain soy milk or can contain additional ingredients, such as sugar, flavours and calcium.
While it is not as common as cow's milk powder, soy milk powder can be found in some stores in the US. In Europe it is even more difficult to find, but can be easily ordered online. Popular brands of soy milk powder, which can be ordered online, are NOW Instant Soy Milk Powder and EcoMIL Instant Soya Drink Powder.
Benefits of soy milk powder
Soy milk powder contains all the good ingredients of soy milk. There are different reasons why you would buy soy milk powder instead of pre-packaged soy milk:

Soy milk powder is more environmental friendly.
This sounds a bit contradictory since a lot of energy is required to remove the water. The process of dehydration is carried out in a sequence of evaporator units, where steam from the preceding unit is used as the heat source in the next unit, resulting in low energy consumption. Soy milk powder results in the use of less packaging waste, compared to soy milk packed in cartons.
Soy milk powder is easier to store and does not spoil. When you go on holiday and are not sure about the availability of soy milk at your destination, you can carry some soy milk powder with you.
Usually, soy milk powder is less expensive than pre-packaged soy milk brands.

Soy yogurt

Soy yogurt is made by fermenting soymilk with friendly bacteria, mainly Lactobacillus bulgaricus and Streptococcus thermophilus. The process is similar to the production of yogurt from cow milk. Yogurt production was invented probably by accident by Balkan tribes thousands of years ago. Yogurt remained mainly a food of Eastern Europe until the 1900s, when the biologist Mechnikov theorized that lactobacillus bacteria in yogurt are responsible for the unusually long lifespan of the Bulgar people. Mechnikov then popularized yogurt as a foodstuff throughout Europe.

The sugars are fermented by the bacteria into lactic acid, which causes the formation of the characteristic curd. The acid lowers to pH of the yogurt to about 4.0 and restricts the growth of food poisoning bacteria. The bacteria produce lactase which breaks down the lactose in dairy milk. Soy milk does not contain lactose but other sugars such as stachyose and raffinose.

Some countries only allow to use the name "yogurt" for products which have not been pasteurized to kill the bacteria after fermentation. This "live" yogurt is believed to be nutritional superior. The living bacteria are supposed to improve our immune system and the enzymes help to digest food. Sometimes, special probiotic bacteria, which are supposed to improve our gut health, are added to dairy or soy yogurt. These probiotic bacteria, often called good bacteria, are special strains of lactic acid bacteria or Bifidobacterium. A probiotic yogurt contains additional ingredients, such as inuline, that promote the growth of the probiotic bacteria. Soy yogurt always contains natural probiotics: the two soy sugars, stachyose and raffinose, act as probiotics and stimulate the growth of Bifidobacterium in the large intestine. Foods that contains both probiotic bacteria and prebiotic ingredients are called symbiotics.

It is difficult to find soy yogurt in supermarkets but you may find it health food shop. Or you can make soy yogurt at home. You can use store-bought yogurt as starter or even Solgar capsules that contain Lactobacillus bulgaricus and Streptococcus thermophilus. In some countries, soy yogurt is labelled as "cultured soy milk" because the term "yogurt" is reserved for dairy yogurt.

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