Eating Your 5 A Day Fruit And Veg

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02 Mar, 2019 10:55 AM

Egg proteins, which are distributed in both yolk and white albumen, Lash Energizer Review Lash Energizer Review[/url] are nutritionally complete proteins containing all the essential amino-acids EAA. Egg protein has a chemical score EAA level in a protein food divided by the level found in an 'ideal' protein food of 100, a biological value a measure of how efficiently dietary protein is turned into body tissue of 94, and the highest protein efficiency ratio ratio of weight gain to protein ingested in young rats of any dietary protein.

The major proteins found in egg yolk include low density lipoprotein LDL, which constitutes 65%, high density lipoprotein HDL, phosvitin, and livetin. These proteins exist in a homogeneously emulsified fluid. Egg white is made up of some 40 different kinds of proteins. Ovalbumin is the major protein 54% along with ovotransferrin 12% and ovomucoid 11%. Other proteins of interest include flavoprotein, which binds riboflavin, avidin, which can bind and inactivate biotin, and lysozyme, which has lytic action against bacteria.

A large egg yolk contains 4.5 g of lipid, consisting of triacylglycerides 65%, phospholipids 31%, and cholesterol 4%. Of the total phospholipids, phosphatidylcholine lecithin is the largest fraction and accounts for 26%. Phosphatidylethanolamine contributes another 4%. The fatty-acid composition of eggyolk lipids depends on the fatty-acid profile of the diet. The reported fatty-acid profile of commercial eggs indicates that a large egg contains 1.55 g of saturated fatty acids, 1.91 g of monounsaturated fat, and 0.68 g of polyunsaturated fatty acids.

Total fatty acids 4.14 g does not equal total lipid 4.5 g because of the glycerol moiety of triacylglycerides and phospholipids and the phosphorylated moieties of the phospholipids. It has been reported that eggs contain less than 0.05 g of trans-fatty acids. Egg yolks also contain cholesterol 211mg per large egg and the xanthophylls lutein and zeaxanthin.

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  1. Publishing your own RubyGem


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    Articles / Tutorials

    Instant Gem Publishing with Gemcutter from Adam Wiggins

    Better Gem Publishing with Gemcutter from Pat Allan

    How to build a ruby gem and host it on gemcutter by Chris Young

    Simple How-to

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