Soy yogurt
Encyclopedia
Soy yogurt, also referred to as Soya yogurt, Soygurt or Yofu (a portmanteau of yogurt and tofu
Tofu
is a food made by coagulating soy milk and then pressing the resulting curds into soft white blocks. It is part of East Asian and Southeast Asian cuisine such as Chinese, Japanese, Korean, Indonesian, Vietnamese, and others. There are many different varieties of tofu, including fresh tofu and tofu...

), is yogurt
Yoghurt
Yoghurt, yogurt or yogourt is a dairy product produced by bacterial fermentation of milk. The bacteria used to make yoghurt are known as "yoghurt cultures"...

 prepared with soy milk
Soy milk
Soy milk and sometimes referred to as soy drink/beverage is a beverage made from soybeans. A stable emulsion of oil, water, and protein, it is produced by soaking dry soybeans and grinding them with water...

.

Ingredients

Soy yogurt is made using soy milk, adding yogurt bacteria (Lactobacillus delbrueckii subsp. bulgaricus and Streptococcus salivarius subsp. thermophilus
Streptococcus salivarius subsp. thermophilus
Streptococcus salivarius subsp. thermophilus is a Gram-positive bacteria and a homofermentative facultative anaerobe, of the viridans group. It tests negative for cytochrome, oxidase and catalase, and positive for alpha-hemolytic activity...

), sometimes adding sweeteners such as fructose
Fructose
Fructose, or fruit sugar, is a simple monosaccharide found in many plants. It is one of the three dietary monosaccharides, along with glucose and galactose, that are absorbed directly into the bloodstream during digestion. Fructose was discovered by French chemist Augustin-Pierre Dubrunfaut in 1847...

, glucose
Glucose
Glucose is a simple sugar and an important carbohydrate in biology. Cells use it as the primary source of energy and a metabolic intermediate...

, or sugar
Sugar
Sugar is a class of edible crystalline carbohydrates, mainly sucrose, lactose, and fructose, characterized by a sweet flavor.Sucrose in its refined form primarily comes from sugar cane and sugar beet...

.

Non-dairy requirements

It is suitable for vegans, ovo-vegetarians
Ovo vegetarianism
Ovo vegetarianism is a type of vegetarianism which allows for the consumption of eggs; unlike lacto-ovo vegetarianism, no dairy products are permitted...

, Jews
Jews
The Jews , also known as the Jewish people, are a nation and ethnoreligious group originating in the Israelites or Hebrews of the Ancient Near East. The Jewish ethnicity, nationality, and religion are strongly interrelated, as Judaism is the traditional faith of the Jewish nation...

 (soy yogurt is Pareve, the Kashrut
Kashrut
Kashrut is the set of Jewish dietary laws. Food in accord with halakha is termed kosher in English, from the Ashkenazi pronunciation of the Hebrew term kashér , meaning "fit" Kashrut (also kashruth or kashrus) is the set of Jewish dietary laws. Food in accord with halakha (Jewish law) is termed...

 prohibits the consumption of animal milk together with various foods), for people with PKU
Phenylketonuria
Phenylketonuria is an autosomal recessive metabolic genetic disorder characterized by a mutation in the gene for the hepatic enzyme phenylalanine hydroxylase , rendering it nonfunctional. This enzyme is necessary to metabolize the amino acid phenylalanine to the amino acid tyrosine...

 or other dangerous diseases, and for those with lactose intolerance
Lactose intolerance
Lactose intolerance, also called lactase deficiency or hypolactasia, is the inability to digest and metabolize lactose, a sugar found in milk...

 or milk allergy
Milk allergy
A milk allergy is a food allergy, an adverse immune reaction to one or more of the constituents of milk from any animal...

, as the bacteria
Bacteria
Bacteria are a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria have a wide range of shapes, ranging from spheres to rods and spirals...

 for shop-bought soy yogurt are usually not grown on a dairy base.

Preparation

Soy yogurt can be prepared at home using the same method as dairy yogurt. One tablespoon of sugar per 1 liter of unsweetened soy milk may be added to promote bacterial fermentation. Soy milk on its own lacks the lactose
Lactose
Lactose is a disaccharide sugar that is found most notably in milk and is formed from galactose and glucose. Lactose makes up around 2~8% of milk , although the amount varies among species and individuals. It is extracted from sweet or sour whey. The name comes from or , the Latin word for milk,...

 (milk sugar) that is the basic food for the yogurt bacteria.

Comparisons

Soy yogurt may have a slight beany soy taste when made directly from freshly prepared soy milk, but this is less pronounced in shop-bought soy yogurt and in soy yogurt made from commercial soy milk.

Soy yogurt contains less fat than yogurt made with whole milk. This amounts to about 2.7% (the same percentage as soy milk), versus 3.5% in dairy yogurt. However, dairy yogurt can be made with 2%, 1%, or fat-free milk, and soy yogurt can also be made from reduced-fat soy milk.

External links



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