Both ?-lactoglobulin and pectin are common ingredients in the food industry . ?-lactoglobulin is used in whey protein, which can act as an emulsifier.
12.
Both ?-lactoglobulin and pectin are common ingredients in the food industry . ?-lactoglobulin is used in whey protein, which can act as an emulsifier.
13.
Bovine ?-lactoglobulin is a relatively small protein of 162 residues, with an 18.4 kDa molecular weight ( 1 dalton being defined as 1 unified atomic mass unit ).
14.
One of the main structural differences with beta-lactoglobulin is that it does not have any free thiol group that can serve as the starting-point for a covalent aggregation reaction.
15.
The main biological function of ?-lactoglobulin in milk is to serve as a way to transfer vitamin A, and the main biological function of ?-lactalbumin in lactose synthesis.
16.
"' ?-Lactoglobulin "'is the major whey protein of cow and sheep's milk ( ~ 3 g / l ), and is also present in many other mammalian species; a notable exception being humans.
17.
As milk is a known allergen ( as listed in Annex IIIa of Directive 2000 / 13 / EC ), manufacturers need to prove the presence or absence of ?-lactoglobulin to ensure their labelling satisfies the requirements of the aforementioned directive.
18.
In physiological conditions it is predominantly dimeric, but dissociates to a monomer below about pH 3, preserving its native state as determined by using NMR . Conversely, ?-lactoglobulin also occurs in tetrameric, octameric and other multimeric aggregation forms under a variety of natural conditions.
19.
Its structure has been determined several times by X-ray crystallography and NMR . One such structure is shown on the right ( from http : / / www . pdb . org entry 3BLG ) . ?-lactoglobulin is of direct interest to the food industry since its properties can variously be advantageous or disadvantageous in dairy products and processing
20.
The name " lipocalin " has been proposed Proteins known to belong to this family include alpha-1-microglobulin ( protein HC ); major urinary proteins; alpha-1-acid glycoprotein ( orosomucoid ); aphrodisin; apolipoprotein D; beta-lactoglobulin; VEGP ); and lizard epididymal secretory protein IV ( LESP IV ).
