Qhov sib txawv ntawm alpha arbutin thiab beta arbutin

Alpha-Arbutin thiab Beta-Arbutin yog ob hom tshuaj ntxuav hniav dawb. Lawv muaj qee qhov sib txawv ntawm cov qauv thiab cov khoom, raws li hauv qab no:
Qauv:
Lub npe tshuaj ntawm α-arbutin yog 4-hydroxybenzaldehyde-D-glucoside, uas yog tsim los ntawm kev sib txuas benzaldehyde thiab qabzib molecules los ntawm pawg aldehyde thiab pawg hydroxyl. Lub npe tshuaj ntawm β-arbutin yog β-D-glucoside ether benzaldehyde, uas yog tsim los ntawm cov piam thaj thiab benzaldehyde molecules los ntawm kev sib txuas ntawm cov piam thaj thiab aldehyde pawg.

Optical isomers:
Alpha arbutin: Alpha arbutin belongs rau D-isomer, uas yog, nws muaj sab xis.
β-Arbutin belongs rau D-isomer los yog tsis-optically active daim ntawv.

Cov nyhuv Whitening:
Alpha Arbutin: Alpha Arbutin muaj cov nyhuv whitening, tuaj yeem cuam tshuam kev ua haujlwm ntawm tyrosinase, txo qis melanin, yog li txo cov pigmentation thiab yav tsaus ntuj tawv nqaij. Beta arbutin: Beta arbutin kuj muaj qee yam ua kom tawv nqaij, tab sis piv rau alpha arbutin, nws cov nyhuv whitening tsis muaj zog.

Kev ruaj ntseg:
Alpha Arbutin:
Alpha arbutin muaj kev ruaj ntseg zoo hauv aqueous thiab oily matrices thiab tsis yooj yim cuam tshuam los ntawm lub teeb, kub thiab pH nqi. Piv nrog rau α-arbutin, β-arbutin yog qhov yooj yim rau decomposition thiab tsis ua haujlwm nyob rau hauv qee yam mob.
Zuag qhia tag nrho, muaj qhov sib txawv ntawm α-arbutin thiab β-arbutin nyob rau hauv cov nqe lus ntawm cov qauv, optical isomers, whitening effect thiab stability. Alpha arbutin muaj cov nyhuv whitening thiab zoo stability, thaum beta arbutin muaj ib tug kuj tsis muaj zog whitening nyhuv thiab tsis zoo stability. Cov khoom xyaw nquag siv nyob ntawm qhov xav tau thiab xav tau los ntawm cov khoom.

Solubility:
Alpha Arbutin: Alpha Arbutin muaj solubility siab thiab tuaj yeem yaj hauv cov kuab tshuaj xws li dej thiab ethanol. Lub solubility ntawm beta arbutin kuj tsawg, me ntsis phem dua alpha arbutin.

Kev nyab xeeb:
Alpha arbutin yog suav hais tias yog cov khoom muaj kev nyab xeeb dua, tsis ua rau tawv nqaij thiab haum rau cov neeg uas muaj ntau hom tawv nqaij. Beta arbutin kuj tseem muaj kev nyab xeeb, tab sis qee zaum nws tuaj yeem ua rau tawv nqaij khaus lossis ua xua, tshwj xeeb tshaj yog thaum siv ntau ntau lossis rau ntawm daim tawv nqaij rhiab heev.
Hauv cov tshuaj pleev ib ce thiab cov khoom tu tawv nqaij, alpha thiab beta arbutin feem ntau tau sau meej meej tias cov khoom xyaw hauv cov mis. Yog li ntawd, koj tuaj yeem txiav txim siab seb cov khoom xyaw twg yog siv rau hauv ib yam khoom los ntawm kev saib cov khoom lag luam cov npe khoom lossis nug cov npe lossis cov chaw tsim khoom.

Nws yuav tsum raug sau tseg tias txawm tias nws yog alpha arbutin lossis beta arbutin, nws txoj kev nyab xeeb thiab kev ua tau zoo yog nyob ntawm cov khoom siv tshwj xeeb thiab txoj kev siv. Thaum xaiv cov khoom siv, nws yog qhov zoo tshaj los xaiv cov khoom uas haum rau koj hom tawv nqaij thiab xav tau.

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