Na February 2023, European Union Sayensị kọmitii maka nchekwa ndị ahịa (SCCS) wepụtara echiche ikpeazụ maka nchekwaα-arbutinnaβ-arbutinna ihe ịchọ mma, na mmetụta na-acha ọcha nke ihe mejupụtara arbutin nke kpakpando kpatara ọzọ nchegbu na ụlọ ọrụ ahụ.
Kedu ihe bụ arbutin?
Arbutin (Arbutin), nke a makwaara dị ka arbutin, aha kemịkalụ 4-hydroxyphenyl-D-glucopyranoside, ịdị arọ nke mkpụrụ ndụ ihe nketa bụ 272.25, bụ glycoside eke sitere na ahịhịa ndụ ndụ, ọtụtụ osisi na-ehichapụ, dị ka ọka wit, ube, rhododendraceae na-amị mkpụrụ bara ụba. na-edozi, kristal aciculate ọcha ma ọ bụ ntụ ntụ, Soluble na mmiri ọkụ, methanol, ethanol na propylene glycol, propylene glycol, insoluble na ether, chloroform, petroleum ether na ihe mgbaze ndị ọzọ.
Enwere ike kewaa Arbutin n'ụdị α na ụdị β dị ka usoro dị iche iche si dị. A na-akpọ α-arbutin kemịkalụ 4-hydroxyphenyl-a-D-glucopyranoside, na β-arbutin ka a na-akpọ 4-hydroxyphenyl-β-D-glucopyranoside. Alfa-arbutin bụ isomer dị iche nke β-arbutin, na njikọ glucoside ya dị iche na nke β-arbutin (lee foto).
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Oge nzipu: Feb-22-2024
