cinnamic acid उदाहरण वाक्य
उदाहरण वाक्य
- Vanillin biosynthesis is generally agreed to be part of the phenylpropanoid pathway starting with L-phenylalanine, which is deaminated by phenylalanine ammonia lyase ( PAL ) to form t-cinnamic acid.
- Material from this species has been analysed, resulting in the identification of six triterpenes, one diterpene glycoside ester, six steroids, one flavonoid known as cirsilol, and six cinnamic acids derivatives.
- The 4-coumaric acid is again hydroxylated by cinnamate / coumarate 2-hydroxylase to yield 2, 4-dihydroxy-cinnamic acid followed by a bond rotation of the unsaturated bond adjacent to the carboxylic acid group.
- "' Cinnamic acid "'is an organic compound with the formula C 6 H 5 CHCHCO 2 H . It is a white crystalline compound that is slightly soluble in water, and freely soluble in many organic solvents.
- Phenolic acids such as p-coumaric and salicylic acid, cinnamic acid and hydroxybenzaldehydes such as p-hydroxybenzaldehyde, 3, 4-dihydroxybenzaldehyde and vanillin can be isolated from in vitro culture of " S . spongiosa ".
- :: : " trans "-Cinnamic acid is cheaply commercially available, or can be made using aldol or malonic-ester reactions ( though I think the yield is often poor-- companies probably have patented an improved process ).
- Phenolic acids such as " p "-coumaric and salicylic acid, cinnamic acid and hydroxybenzaldehydes such as p-hydroxybenzaldehyde, 3, 4-dihydroxybenzaldehyde, vanillin have been isolated from in vitro culture of the freshwater green alga " Spongiochloris spongiosa ".
- Phenylalanine ammonia-lyase ( PAL, a . k . a . phenylalanine / tyrosine ammonia-lyase ) is an enzyme responsible for the transformation of L-phenylalanine or tyrosine into trans-cinnamic acid or " p "-coumaric acid respectively and ammonia.
- In some areas of Chile, propolis contains viscidone, a terpene from " Baccharis " shrubs, and in Brazil, naphthoquinone epoxide has recently been isolated from red propolis, and prenylated acids such as 4-hydroxy-3, 5-diprenyl cinnamic acid have been documented.
- The characteristics of these natural chemicals indicate a potential role of cis-cinnamic acid and its glucosides as allelochemicals ( chemicals, released from plants, that cause an interaction between plants and other living organisms ) for use as plant growth regulators and weed suppression in agricultural fields and in natural ecosystems.