Sunday, October 5, 2014

CHEESE and CHEESE VARIETIES




CHEESE & CHEESE VARIETIES


There are more than 400 varieties of cheese  produced throughout the world, created by
differences in milk source (geographic district or mammalian species), fermentation and
ripening conditions as well as pressing, size and shape.  Most of the cheese types that are
produced today originated many centuries ago within smaller communities and are thus
named, for example, Camembert and Brie from France, Gouda and Edam from the
Netherlands, Cheddar and Cheshire from England, Emmentaler and GruyËre from
Switzerland, Parmesan and Gorgonzola from Italy, and Colby from the USA; others are
named for some aspect of their manufacture, e.g. Feta from Greece, processed cheese (best
known as the cheese slices that go on hamburgers) from the USA, and Mozzarella from Italy;
other names are more generic, e.g. cottage cheese from the USA.
THE NEW ZEALAND CHEESE INDUSTRY
New Zealand is the second largest exporter of cheese in the world.  We manufactured more
than 250 000 tonnes (equivalent to 250 million 1 kg blocks) of cheese from 2.5 billion litres
of milk in 1997.  Over 200 000 tonnes of this was exported.  Nearly half of the cheese
produced was Cheddar-type, with the remainder being Mozzarella (for pizzas), Gouda and
Egmont, as well as many other varieties. Closely related products such as yoghurt, cottage
cheese and cream products are also manufactured, mainly for local consumption.  Much of
the cheese exported from New Zealand is sold for processed cheese (fast-food outlets), as an
ingredient cheese for the fast-food market (pizzas), for cheese powders (flavours for snacks,
soups etc.) and for cheese sauces.
The general manufacturing protocol for most cheese varieties is outlined


Mozzarella
Mozzarella is one of several pasta filata or stretched curd cheeses that orig-
inated in Italy. The name pasta filata refers to a unique plasticizing and texturing treat-
ments of the fresh curd in hot water that imparts to the finished cheese its characteristic
fibrous structure and melting properties. Mozzarella cheese made from standardized buf-
falo milk with 3 and 1.5% fat. The effect of coagulant types (calf rennet, chymosin and
Mucor miehei rennet) on the cheese properties was carried out. 
Material and methods. Fresh raw buffalo milk and starter cultures of Streptococcus sal-
varius ssp. thermophilus and Lactobacillus delbrueckii ssp. bulgaricus were used. The co-
agulants were calf rennet powder (HA-LA), microbial rennet powder (formase ISOTL
from Mucor miehei) and chymosin derived by fermentation (CDF). Milk, curd, whey,
kneading water and cheese were analysed. The slab gel electrophoresis patterns of Mozza-
rella cheese were also applied. Statistical analyses were also applied on the obtained data. 
Results. Recovery of DM of both curd and cheese decreased in case of using Mucor mie-
hei rennet while the recovery of TP and fat content in both curd and cheese and their loss
to whey and kneading water were nearly the same. Soluble nitrogen and soluble tyrosine
and tryptophan contents elevated with increasing the storage period.

 











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