Alcohol dehydrogenase can break down both ethanol and DEG because they both contain -OH groups and have similar shapes, allowing them to bind to the same active site. DEG-contaminated wines with high ethanol content may result in less DEG poisoning because ethanol competes with DEG, making it more likely to bind to the active site.
Alkoholdehidrogenaza, hem etanol hem de DEG'yi -OH grupları içerdikleri ve benzer şekillere sahip oldukları için aynı aktif bölgeyi kullanabildikleri için parçalayabilir. Yüksek etanol içeriğine sahip DEG ile kontamine olmuş şaraplar, etanolün DEG ile rekabet etmesi ve aktif bölgeye bağlanma olasılığının daha yüksek olması nedeniyle, daha az DEG zehirlenmesine neden olabilir.
| Front | Using the information in Fig. 2.1, explain why alcohol dehydrogenase is able to break down both ethanol and DEG Suggest why DEG-contaminated wines with a high ethanol content may result in less DEG poisoning than contaminated wines with a low ethanol content. |
|---|---|
| Back | - both contain -OH groups - similar shape so same active site - ethanol competes with DEG, if more ethanol, more likley to bind to active site, so less DEG broken down |
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