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leucine    
n. 白氨酸

白氨酸

leucine
n 1: a white crystalline amino acid occurring in proteins that
is essential for nutrition; obtained by the hydrolysis of
most dietary proteins

Leucine \Leu"cine\ (l[=oo]"s[=e]n), Leucin
\Leu"cin\(l[=u]"s[i^]n), n. [Gr. leyko`s white.] (Physiol.
Chem.)
a naturally occurring alpha-amino acid
({(CH3)2CH.CH2.CH(NH2)-COOH}), one of the building units of
almost all proteins of living organisms, both animal and
vegetable. It is one of the essential amino acids (not
synthesized by the human body, a required component for
proper nutrition), and is hydrophobic in character when bound
in proteins. In isolated form it is a white, crystalline,
zwitterionic substance formed, e. g. by the decomposition of
proteins by pancreatic digestion, by the action of boiling
dilute mineral acid, or by putrefaction. Chemically it is to
be considered as amido-caproic acid. It occurs as two optical
isomers, the L- and D-forms. The L-form, L-leucine, is the
natural form, present in most proteins.
[1913 Webster PJC]


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  • 7 Foods High in Leucine and Why You Need It - WebMD
    Leucine is a branched-chain amino acid that helps to build and repair muscles Learn which 7 foods to eat to get more leucine
  • Leucine - Wikipedia
    Leucine ball and stick model spinning Leucine or leucin[3] (symbol Leu or L) [4] is an essential amino acid that is used in the biosynthesis of proteins Leucine is an α-amino acid, meaning it contains an α- amino group (which is in the protonated −NH 3+ form under biological conditions), an α- carboxylic acid group (which is in the deprotonated −COO − form under biological conditions
  • 10 Foods High in Leucine Its Benefits - Cleveland Clinic Health . . .
    Leucine helps build muscle, boost metabolism and fight age-related muscle loss Find out how much you need and which foods pack it in
  • Leucine – Everything you should know - Mayo Wellness
    Leucine is a vital BCAA that supports muscle growth, recovery, and energy Discover its benefits, dosage, food sources, and side effects
  • Top 10 Foods Highest in Leucine - My Food Data
    Leucine is an essential, branched-chain amino acid (BCAA), which is required for the growth and repair of muscle, skin, and bone Studies have found that leucine can stimulate muscle growth and help prevent the deterioration of muscle with age (1, 2) High leucine foods include chicken, beef, pork, fish (tuna), tofu, canned beans, milk, cheese, squash seeds, and eggs The reference dietary
  • Leucine Supplements, Foods, Benefits, Uses, Dosage - Dr. Axe
    Leucine is an essential amino acid that is integral to the synthesis of muscle The leucine structure contains an alpha-amino group, an alpha-carboxylic acid group and a side chain isobutyl group, making it a branched-chain amino acid
  • Research progress in the role and mechanism of Leucine in regulating . . .
    Abstract Leucine, a branched-chain amino acid, is essential in regulating animal growth and development Recent research has uncovered the mechanisms underlying Leucine’s anabolic effects on muscle and other tissues, including its ability to stimulate protein synthesis by activating the mTORC1 signaling pathway The co-ingestion of carbohydrates and essential amino acids enhances Leucine’s
  • What is Leucine? Benefits, Sources, Dosage, More
    Leucine is not just a buzzword in the world of fitness and health—it’s a crucial amino acid that plays a vital role in muscle growth, recovery, and overall well-being Whether you're trying to build muscle, maintain a healthy metabolism, or simply improve your body’s ability to repair and recover, leucine is something worth paying attention to But what exactly is leucine, and why is it





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