Biotech Articles
Publish Your Research Online
Get Recognition - International Audience

Request for an Author Account   |   Login   |   Submit Article
 
 
HOME FAQ TOP AUTHORS FORUMS PUBLISH ARTICLE
 
 

Imperial Role of Essential Amino Acids

BY: Kirti Rani | Category: Biology | Submitted: 2012-07-13 08:27:36
       Author Photo
Article Summary: "Essential amino acids are considerably important grwoth metabolic factors which are responsible for normal physiology of human, animals and plants..."


Share with Facebook Share with Linkedin Share with Twitter Share with Pinterest Email this article
     


Amino acids are the building blocks of proteins and their numbers found to be twenty. Out of which eight are essential for animals and used as essential food supplements. General skeleton of amino acids:

Amino acids is distinguished by substitution of R-group on the carbon atom which influences the activity of the amino acid and divided into the following groups: amino acids with aliphatic R groups, non-aromatic amino acids with hydroxyl R groups, amino acids with sulfur containing R groups, amino acids with acidic R groups, amino acids with basic R groups, amino acids with aromatic R groups and amino acids with imino acids as the R groups. Thus, the hydrophilic amino acids have hydroxyl groups in their R substituent (e.g. serine) tend to interact with the aqueous environment and often involved in the formation of H-bonds which in turn predominantly found on the exterior surfaces proteins or in the reactive regions of enzymes. However, the hydrophobic amino acids do not have hydroxyl groups in the R substituent (e.g. methionine) and usually repelling the aqueous environment as well as reside predominantly in the interior of proteins. This class of amino acids does not ionize nor participate in the formation of hydrogen bonds. All the amino acids, except glycine have two optically active isomers, the D and L forms. Most of natural proteins are usually made up of L-amino acids (natural amino acids.)

Role of amino acids
Amino acids have important role in food & pharmaceutical industries, therapeutic purposes, preparation of cosmetics and in the synthesis of chemicals too.
1.Use as nutritional supplementation: Most of absorbed amino acids are used to replace body proteins during their metabolism. Eight amino acids are known to be essential in diet. Foods such as plant proteins lacking in these essential amino acids are fortified with their addition. Most cereals are considerably low in lysine and hence cereal food is improved by the addition of essential amino acids determined by the PER (protein equivalency ration). The PER is logistic scale of comparing the amino acid contents of protein with that of hen's egg or human milk. An animal feed is improved by addition of lysine and methionine resulting in higher growth rates in the animals.

2.Flavoring of foods stuffs: Amino acids are commonly used to influence the taste of meats. Some are used to sweeten the foodstuffs and beverages such as glycine, L- aspartyl, L - phenylalanine methyl ester and aspartame. Other amino acids e.g. valine, L- isomers of leucine, phenylalanine, tyrosine, and tryptophan are bitter while their D-isomers are sweet. Thus, combination of various amino acids influences the taste and flavor of foods and drinks. Thus cheese flavor also influenced by using the combined effect of glutamic acid, valine, leucine and methionine as well.

3.Medical uses: The marvelous application of amino acids in medicine is the uses of these amino acids as food supplements as protein rich diet and administered orally after operation/critical surgery. Various amino acids are used for ammonia detoxification in blood in liver diseases, in the treatment of heart failure, in cases of peptic ulcer and to treat the male sterility.

4.Use as industrial raw materials: Although numerous studies have been concluded on the use of amino acids as raw materials in the chemical industry and best example in the manufacturing of artificial silk. However amino acids are used as surface-active agents, synthesis of polymers, synthetic leather, fire-resistant fabrics and anti-static materials as well as in preparation of antidandruff shampoos too.

About Author / Additional Info:
SUBMITTED BY:
Dr. Kirti Rani Sharma,
Assistant Professor (II),
Amity Institute of Biotechnology,
Amity University, sec-125, Gautam Buddha Nagar, Noida-201303 (UP), India.
Office Phone no: +91-120-4392946
Mobile No: +91-9990329492
Email ID: krsharma@amity.edu, Kirtisharma2k@rediffmail.com




Search this site & forums
Share this article with friends:



Share with Facebook Share with Linkedin Share with Twitter Share with Pinterest Email this article

More Social Bookmarks (Digg etc..)


Comments on this article: (0 comments so far)

Comment By Comment

Leave a Comment   |   Article Views: 2343



Additional Articles:

•   Nitrogen Fixation: Genes Involved and the Infection Process

•   Becoming Post-Human : Genetic engineering

•   Celiac Disease: New Advancements in Detection and Therapy

•   Importance of Genomics




Latest Articles in "Biology" category:
•   Wonderful World of Microorganisms and Their Role in Human Life.

•   Molecular Biology Techniques

•   Process of Reproduction in Bacteria

•   Importance of Microorganisms in the Ecosystem

•   Starting From the Basics: DNA Extraction

•   Agrobacetium-Mediated Transformation Protocol

•   Sucrose Regulating Photosynthesis

•   Nitrogen Fixation: Genes Involved and the Infection Process

•   Functional Genomics: A Tool in Genetic Engineering

•   Plant Tissue Culture and Its Applications

•   Harmful Effects of Mold and Their Prevention

•   Gel Electrophoresis in Molecular Biology

•   Extraction of Phytochemicals

•   Applications of Thin Layer Chromatography

•   Beneficial and Harmful Bacteria

•   Calvin Cycle Regulation and Effect on Photosynthesis

•   How a Baby Develops Inside Mother's Womb: From an Embryo to a Child

•   Apoptosis (or cell suicide) : Process and Types

•   Neurotransmitters and its types



Important Disclaimer: All articles on this website are for general information only and is not a professional or experts advice. We do not own any responsibility for correctness or authenticity of the information presented in this article, or any loss or injury resulting from it. We do not endorse these articles, we are neither affiliated with the authors of these articles nor responsible for their content. Please see our disclaimer section for complete terms.
Page copy protected against web site content infringement by Copyscape
Copyright © 2010 biotecharticles.com - Do not copy articles from this website.

ARTICLE CATEGORIES :
Agriculture Bioinformatics Applications Biotech Products Biotech Research
Biology Careers College/Edu DNA Environmental Biotech
Genetics Healthcare Industry News Issues Nanotechnology
Others Stem Cells Press Release Toxicology  


  |   Disclaimer/Privacy/TOS   |   Submission Guidelines   |   Contact Us