Monday, March 31, 2014

Definition and Function of amino acids. and the essential amino acid / nonessential

Amino acids are compounds that have one or more karbosil group ( - COOH ) and one or more amino groups ( - NH2 ) , one of which is located on adjacent carbon atoms are karbosil group . Amino acids differ by peptide bonds that continued ties between groups karbosil one amino acid with the amino acids from amino acids beside ( Sudarmaji , 1996 in Persulessy , 2010) .
By Anonymous 2010b , Amino Acid Functions include:

    
Constituent proteins , including enzymes .
    
The basic framework is important in the metabolism of a number of compounds ( mainly vitamins , hormones , and nucleic acids )
    
Important metal fastener in need in the enzymatic reaction ( cofactor ) .
Amino acids come from protein sources . Proteins are organic compounds consisting of one or more amino acids . Protein is in getting through the daily diet in the form decomposed in digestion of amino acids . Every living cell contains protein . Proteins organic compounds essential for living organisms and the highest concentration in the muscle tissue of animals . Proteins are the essential ingredients that support life. Skin , bone , muscle , blood , hormones , enzymes and organs are all made up of protein . According to Anonymous , 2010b there are 20 amino acids which are divided into two groups: non enensial amino acids and essential amino acids . Amino acids are the essential amino acids that are not synthesized by the body and must be obtained from food , are as follows :

    
Tryptophan ; are essential amino acids , it is getting from some source in carbohydrates . Tryptophan found in eggs , meat , skim milk , banana , milk , and cheese .
    
Threonine : found in foods such as milk , and meat .
    
Methionine : is esencial . Therefore , it should be taken from food . The main sources of methionine hádala fruits , meat ( chicken, beef , fish , milk ( whole milk , some types of cheese ) , saturan ( spinach , garlic , corn ) , as well as legumes ( peas , pistacio , cashew nuts , red bean , tofu ) .
    
Lysine ; contained in soy protein , bici legumes , and fish . Average lysine requirement is 1-1.5 g per day .
    
Leucine ; widely available on the high-protein foods , such as meat , milk , brown rice and soybeans . In the soy milk products are also commonly found leucine content .
    
Isoleucine ; required for optimal growth . Development of intelligence . Maintain nitrogen balance of the body .
    
Phenylalanine ; an essential amino acid which is the raw material for the formation of catecholamines . Catecholamines is known as alertness enhancers important for the transmission of nerve impulses . Phenylalanine found in chicken, beef , fish , eggs , and soy .
    
Valin ; contained in livestock products such as meat , eggs , milk and cheese . In addition , this essential amino acid found in grains that contain oils such as peanut , sesame , and gentil ) .
    
Histidine, for humans , histidine is an essential amino acid for children .
Nonessential amino acid is an amino acid which can be synthesized by the body , among other things :

    
Tyrosine ; was first found in cheese . In humans , these amino acids are not esencial , but pembentukanya use of raw materials by the enzyme phenylalanine phehidroksilase . According to research conducted by the Environmental Health Research Institute USA 1988, tyrosine also serves as a stimulant and sedative drugs are effective to improve mental and physical performance under pressure , with no side effects . Tyrosine is contained in chicken liver , cheese , avocado , banana , yeast , fish and meat .
    
Cysteine ​​; cysteine ​​is also found in foods such as chili peppers , garlic , onions , broccoli , and core grain .
    
Serin ; first time in the isolation of the protein silk fiber in 1865 .
    
Proline ; function in the know as the most important protein components .
    
Glycine ; protein itself does not contain many glycine ( except on the collagen -containing glycine than two-thirds of the womb ) . The human body produces sufficient amounts of glycine .
    
Glutamate ; glutamate used in the flavoring industry . In everyday life found in the form of a salt derivative known as monosodium glutamate or MSG .
    
Aspartate ; function in plants known as neurotransmitters in the brain and muscle nerves . Aspartate is also possible to play a role in resistance to fatigue .
    
Ariginin ; among children , ariginin very important . Ariginin main source of food found in livestock products such as meat , milk , eggs , and various processed . Meanwhile, from plant products , ariginin found in chocolate and peanut seeds .
    
Alanine ; are found in other forms of food such as meat , fish , milk , eggs , and nuts .
    
Glutamine ; an amino acid that is also known as acid glumatik . These amino acids serve as fuel for the brain that controls excess ammonia formed in the body as a result of biochemical processes . Naturally , glutamine is found in wheat and soybeans .
    
Asparagine ; required by the nervous system necessary to maintain equilibrium and also in the transformation of the amino acids . Asparagine also found in meat ( all kinds of sources ) , eggs and milk ( and products turunanya ) .
Lately, non-essential amino acids are divided into two groups: non- essential amino acid that is conditional groups nonessential amino acids , amino acids can be sufficient for the growth of an adult , but not sufficient for the growth of children and amino acids that are not really essential ( Almatisier , 2002 in Persulessy , 2010) . Sources : ( Almatisier , 2002 in Persulessy , 2010) . Summaries do not forget to read other material on this blog :

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