Tofu (1)
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Transcript of Tofu (1)
SOY PANEER
Tofu is a delicious and nutritious, protein-rich food made
from the curds of soy milk.
Tofu, also called bean curd, is a food made by coagulating
soy milk and then pressing the resulting curds into soft
white blocks. It is a component in many East Asian and
Southeast Asian cuisines.
It provides an excellent soy protein alternative to many
traditional foods.
Being relatively neutral in taste, tofu is so versatile we can
whip it, cream it, fry it and it can be added to savoury dishes
or to sweet.
TOFU
PRINCIPLE:
The principle of making soy tofu is to dissolve protein
contained in soybean using water as solvent(soy milk). Once
the protein has dissolved, precipitate it by adding precipitating
substance to yield clumps of protein that will be formed soy
tofu.
TOFU MANUFACTURING PROCESS
Raw material: Soy milk
Process:
Coagulation is performed almost immediately after
the hot soymilk base is extracted from the processing
line. Some of the known coagulants are
magnesium chloride, sea salt, citric acid
and acetic acid (such as in common vinegar).
Pressing can be manual, mechanical or hydraulic.
Formulation is also possible with tofu. The addition of herbs and
spices and other ingredients can make the product more ready to eat
and easier to prepare at home.
Packaging for the basic tofu is generally in either a plastic
container and plastic film-sealed top, or in a vacuum-sealed plastic
wrap.
NUTRITIONAL FACTS
Soy paneer (100 gm)
Dairy paneer(100 gms)
Calories kcal 182 289
Protein (gm) 14.8 14
Fat (g) 6.4 15
Cholesterol (mg)
0 66
Dietryfibre(g) 9.5 0
TYPES
1) Fresh tofu
Depending on the amount of water that is extracted from the tofu curds, fresh tofu can be divided into three main varieties. Fresh tofu is usually sold completely immersed in water to maintain its moisture content.
Silken or soft tofu
Firm tofu
Extra firm tofu
2)Processed tofu
Some of these techniques probably originate from the need to preserve tofu before the days of refrigeration, or to increase its shelf life and longevity.
Fermented
pickled and stinky tofu
Flavored
Dried
Fried
Frozen
1.A) Silken/soft tofuSilken tofu is undrained, unpressed tofu that contains the highest moisture
content of all fresh tofus. Silken tofu is produced by coagulating soy
milk without curdling it. Silken tofu, which is very soft and pudding-like, is
made without removing the whey water or pressing.
APPLICATION:
Soft tofu :
It is very tender and crumbles easily.
It's a good substitute for ricotta cheese and can be crumbled over salads or
stir-fries, scrambled like eggs, shaped into patties and grilled or pureed and
added to soups or sauces.
Silken tofu has the most delicate consistency of all tofu with a custard-like
texture. It also has the least fat content.
Silken tofu is blended with smoothies, dips or soft cheeses or whip it with
honey and pair it with fruit.
1.B) Firm tofu• Although drained and pressed, this form of fresh tofu still
contains a great amount of moisture.
• It has the firmness of raw meat but bounces back readily when pressed.
• The skin of this form of tofu has the pattern of the muslin used to drain it and is slightly more resilient to damage than its inside
• These types of firm tofu are produced with seawater instead of nigari (magnesium chloride), or using concentrated soy milk. Some of them are squeezed of excess moisture using heavy weights.
Application
Firm tofu is used in stir-fries, dust it in flour and deep-fry for a crispy coating, dice it and add it to soup or marinate it and grill it on the barbecue
1.C)Extra firm tofu
• A large amount of liquid has been pressed out of the tofu and contains the least amount of moisture of all fresh tofu and has the firmness of fully cooked meat and a somewhat rubbery feel similar to that of paneer.
• When sliced thinly, this tofu can be crumbled easily. The skin of this form of tofu has the pattern of the muslin used to drain and press it.
APPLICATION
Extra firm tofu is very dense and contains the least amount of water in it and is highest in protein and calcium.
It holds its shape well making it suitable for almost all types of cooking
2.A) Fermented tofu
• 1.PICLKED TOFU : Also called "preserved tofu“ This consists of cubes of dried tofu that have been allowed to fully air-dry under hay and slowly ferment from aerial bacteria.
• The dry fermented tofu is then soaked in salt water, Chinese wine, vinegar, and minced chiles, or a unique mixture of whole rice, bean paste, and soybeans. In the case of red pickled tofu red yeast rice(cultivated with Monascuspurpureus) is added for color
• 2.STINKY TOFU: A soft tofu that has been fermented in a unique vegetable and fish brine.[The blocks of tofu smell strongly of certain pungent cheeses, and are described by many as rotten and fecal
2.B)Dried tofu
• Two kinds of dried tofu are produced in Japan. They are usually rehydrated (by being soaked in water) prior to consumption. In their dehydrated state they do not require refrigeration.
• Koya tofu (also known as shimidofu) is made using nigari.
• Kori tofu (literally "frozen tofu") is freeze-dried
2.C)Fried tofu
• With the exception of the softest tofus, all forms of tofu can be fried. Thin and soft varieties of tofu are deep fried in oil until they are light and airy in their core
• Tofus such as firm Asian and Chinese dry tofu with their lower moisture content, are cut into bite-sized cubes or triangles and deep fried until they develop a golden-brown, crispy surface in their core added to hot pot dishes
2.D)Frozen tofu • Thousand layer tofu: By freezing tofu, the large ice
crystals that develop within the tofu result in the formation of large cavities that appear to be layered.
• The frozen tofu takes on a yellowish hue in the freezing process. Thousand layer tofu is commonly made from Asian soft tofu. This tofu is defrosted, and sometimes pressed to remove moisture, prior to use.
• Since it is dried, it can be preserved for long term. It must be soaked in water before eating, and is typically simmered in dashi, sake or mirin and soy sauce
• A similar form of freeze-dried tofu, in smaller pieces, is found in instant soups in which the toppings are freeze-dried and stored in sealed pouches.
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