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L-threonine is classified as an essential amino acid. Humans do not synthesize L-threonine, so it must be obtained through the diet. The male adult’s daily requirement is 7 mg per kg of body weight. Most people will get sufficient L-threonine through the diet, but as threonine content in Grains is low, vegetarians are more likely than others to have deficiencies and should consider supplementation.
L-threonine is a key component of collagen, elastin and enamel proteins. It aids in proper fat metabolism in the liver; nutrients are more readily absorbed when threonine is present. L-threonine also helps the digestive and intestinal tracts function more smoothly. Experts believe that L-threonine enhances the immune system by aiding in the production of antibodies.
Applications:
L-threonine is an essential amino acid, mainly used in pharmaceutical, chemical reagents, food fortifiers, and feed additives. In particular, the amount used in feed additives grows rapidly. L-threonine with the feed has the following characteristics: ① can adjust the amino acid balance in the feed to promote livestock growth; (2) to improve the meat; (3) improve the nutritional value of amino acid with low digestion rate ④ can reduce feed raw material costs; in the EU (mainly Germany, Belgium, Denmark, etc.) and the American States, it has been widely used in feed industry.
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test item
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limit
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specific rotation
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-27.6 to -29.0 ?/font>
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state of solution
(transmittance)
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clear and colorless
not less than 98.0%
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chloride
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not more than 0.020%
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ammonium
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not more than 0.02%
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sulfate
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not more than 0.020%
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iron
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not more than 10ppm
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heavy metals(pb)
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not more than 10ppm
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arsenic
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not more than 1ppm
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other amino acids
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chromatographically not detectable
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loss on drying
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not more than 0.20%
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residue on ignition
(sulfated)
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not more than 0.10%
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assay
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99.0 to 100.5%
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ph
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5.2 to 6.2
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