Qhov sib txawv tseem ceeb ntawm alpha thiab beta hydroxy acids yog tias alpha hydroxy acid (AHA) muaj pawg carboxylic acid thiab ib pawg hydroxyl sib cais los ntawm ib qho atom carbon whereas beta hydroxy acid (BHA) muaj carboxylic acid pawg. thiab ib pawg hydroxyl sib cais los ntawm ob lub atoms.
Hydroxy acids yog cov organic tebchaw ob leeg muaj pawg carboxylic acid thiab ib pawg hydroxyl nyob rau hauv tib lub molecule. Cov pa roj carbon atoms uas cov pab pawg ua haujlwm txuas nrog yog nyob ze. Yog li ntawd, peb tuaj yeem hu lawv li alpha, beta lossis gamma, raws li tus naj npawb ntawm cov pa roj carbon atoms cais cov pab pawg ua haujlwm no. Cia peb tham ntxiv txog cov ntsiab lus hauv qab no.
Alpha Hydroxy Acids yog dab tsi?
Alpha hydroxy acids (AHAs) yog cov tshuaj lom neeg cov tshuaj lom neeg uas muaj cov carboxylic acid hloov nrog ib pawg hydroxyl ntawm cov pa roj carbon atom uas nyob ib sab. Qhov ntawd txhais tau hais tias ib qho carbon atom cais ob pawg ua haujlwm, pawg carboxylic acid (-COOH) thiab pawg hydroxyl (-OH). Muaj ob hom, uas yog, ntuj AHA thiab hluavtaws AHA.
Kev paub zoo ntawm cov tshuaj no yog nyob rau hauv kev lag luam tshuaj pleev ib ce. Cov neeg tsim khoom siv cov khoom sib xyaw no ua ib qho tseem ceeb hauv ntau cov khoom siv tawv nqaij vim nws lub peev xwm los txo cov wrinkles thiab txhim kho tag nrho cov tawv nqaij. Cov tuam txhab tau txais AHAs uas peb siv hauv kev lag luam tshuaj pleev ib ce feem ntau yog los ntawm cov khoom noj xws li glycolic acid, (tau los ntawm cov suab thaj), lactic acid (tau los ntawm mis), citric acid (tau los ntawm citrus txiv hmab txiv ntoo), thiab lwm yam., cov tebchaw no yog ib qho tseem ceeb ua ntej rau cov tshuaj synthesis ntawm aldehydes ntawm oxidative cleavage.
Beta Hydroxy Acids yog dab tsi?
Beta hydroxy acids (BHAs) yog cov tshuaj lom neeg cov tshuaj lom neeg uas muaj pawg carboxylic acid hloov nrog ib pawg hydroxyl ntawm cov pa roj carbon atom thib ob. Qhov no txhais tau hais tias ob lub pa roj carbon atom cais ob pawg ua haujlwm, pawg carboxylic acid (-COOH) thiab pawg hydroxyl (-OH). Cov molecules yog li no, ze ze nrog AHAs.
Daim duab 01: Cov Hydroxy Acids sib txawv (alpha – α, beta – β thiab gamma – γ hydroxy acids)
Thaum xav txog cov acidity ntawm cov compound, nws yog acidic tsawg dua AHA. Qhov no yog vim qhov kev ncua deb ntawm ob pawg ua haujlwm piv rau AHAs. Beta hydroxy acids kuj pom siv hauv kev lag luam tshuaj pleev ib ce. Txawm li cas los xij, cov neeg tsim khoom siv lo lus no feem ntau yog lub ntsiab lus rau salicylic acid. Qhov no salicylic acid yog ib qho tseem ceeb muaj nyob rau hauv anti-aging cream nrog rau kev kho pob txuv.
Qhov txawv ntawm Alpha thiab Beta Hydroxy Acids yog dab tsi?
Alpha hydroxy acids (AHAs) yog cov tshuaj lom neeg cov tshuaj lom neeg uas muaj cov carboxylic acid hloov nrog ib pawg hydroxyl ntawm cov pa roj carbon atom uas nyob ib sab. Li no, ib qho atom carbon atom cais ob pawg ua haujlwm, pawg carboxylic acid (-COOH) thiab hydroxyl pawg (-OH) ntawm AHAs. Beta hydroxy acids (BHAs) yog cov organic tshuaj sib txuas uas muaj pawg carboxylic acid hloov nrog ib pab pawg hydroxyl ntawm cov pa roj carbon atom thib ob. Yog li ntawd, nyob rau hauv cov molecules no, ib tug carbon atom cais ob pawg functional, carboxylic acid pawg (-COOH) thiab hydroxyl pawg (-OH) yog BHAs. Qhov no yog qhov sib txawv tseem ceeb ntawm alpha thiab beta hydroxy acids.
Summary – Alpha vs Beta Hydroxy Acids
Ob AHAs thiab BHAs yog cov khoom xyaw tseem ceeb ntawm cov khoom tu tawv nqaij hauv kev lag luam kom zoo nkauj. Qhov sib txawv ntawm alpha thiab beta hydroxy acids yog tias alpha hydroxy acid muaj ib pawg carboxylic acid thiab ib pawg hydroxyl sib cais los ntawm ib tug carbon atom whereas beta hydroxy acid muaj ib pawg carboxylic acid thiab ib pawg hydroxyl sib cais los ntawm ob carbon atoms.
