Kuv xav tias yog vim li cas cov kua qaub siv tau yooj yim yognws yog nonvolatile (MP 253 ° C nrog decomposition, BP tsis muab). Phenol nws tus kheej, thiab feem ntau hloov phenols, muaj tsawg melting thiab boiling ntsiab lus.
Lub hom phiaj ntawm gallic acid yog dab tsi?
Gallic acid yog ib qho paub zoo antioxidant uas yog ib qho tseem ceeb ntawm cov polyphenolic metabolite theem nrab. Gallic acid yog ib qho tseem ceeb heev cov tshuaj tiv thaiv kab mob antioxidant, hu ua Ayurvedic tshuaj ntsuab. Sib nrug los ntawm nws lub luag haujlwm phytochemical, gallic acid kuj tseem siv rau hauv tanning, number case dyes, thiab tsim cov ntawv.
YPuas gallic acid yog phenolic compounds?
Gallic acid yog ib qho natural phenolic compound pom nyob rau hauv ntau cov txiv hmab txiv ntoo thiab cov nroj tsuag tshuaj. Nws tau tshaj tawm tias muaj ntau yam teebmeem kev noj qab haus huv.
Lub ntsiab lus ntawm tag nrho cov ntsiab lus phenolic yog dab tsi?
TPC kev ua haujlwm yog txheej txheem los txheeb xyuas cov ntsiab lus phenolic hauv cov qauv. Phenolic compounds uas muaj nyob rau hauv cov nroj tsuag muaj redox zog, thiab cov khoom tso cai rau lawv ua antioxidants [6, 7].
Lub hom phiaj ntawm tag nrho cov ntsiab lus phenolic yog dab tsi?
Phenolic tebchaw yog cov nroj tsuag tseem ceeb nrog redox lub luag haujlwm rau kev ua haujlwm antioxidant [22]. Cov pab pawg hydroxyl hauv cov nroj tsuag rho tawm yog lub luag haujlwm los pab txhawb cov dawb radical scavenging.
