Picric acid yog phenolic thaum lwm tus tsis yog phenolic.
piv txwv ntawm phenolic yog dab tsi?
Phenols muaj nyob hauv qhov xwm txheej; piv txwv xws li tyrosine, ib qho ntawm cov qauv amino acids pom nyob rau hauv feem ntau cov proteins; epinephrine (adrenaline), ib qho stimulant hormone tsim los ntawm adrenal medulla; serotonin, neurotransmitter nyob rau hauv lub hlwb; thiab urushiol, ib qho irritant secreted los ntawm tshuaj lom ivy los tiv thaiv tsiaj los ntawm noj nws …
Dab tsi yog cov tshuaj phenolic?
Lo lus 'phenolic' lossis 'polyphenol' tuaj yeem txhais tau tshuaj raws li cov khoom uas muaj lub nplhaib uas muaj ntxhiab uas muaj ib lossis ntau dua hydroxy hloov pauv, suav nrog cov khoom siv ua haujlwm (esters, methyl). ethers, glycosides thiab lwm yam)
Phenolic pab pawg yog dab tsi?
Phenolic tebchaw yog pawg ntawm cov molecules me me uas lawv cov qauv muaj tsawg kawg ib chav phenolRaws li lawv cov qauv tshuaj, cov tshuaj phenolic tuaj yeem muab faib ua pawg sib txawv, xws li phenolic acids, flavonoids, tannins, coumarins, lignans, quinones, stilbens, thiab curcuminoids.
YPhenolic hauv cov nroj tsuag yog dab tsi?
Phenolics yog cov khoom muaj ib lossis ntau lub nplhaib nrog ib lossis ntau pawg hydroxyl… Cov phenolics suav nrog phenolics acids, flavonoids, tannins (Daim duab 1) thiab cov stilbenes tsawg dua thiab lignans (Daim duab 2). Flavonoids yog cov polyphenols ntau tshaj plaws hauv peb cov khoom noj.
