2 published verifications about Glucose Glucose ×
“Salivary amylase cannot break down starch into glucose because the enzyme molecule is too large.”
The evidence shows the claim is not supported. Salivary amylase does begin starch digestion by cutting starch into smaller sugars such as maltose and dextrins, and its molecular size is not a barrier to that action. If the intended point was that salivary amylase does not usually produce free glucose by itself, that is a different and much narrower statement.
“Electrochemical enzyme-based biosensors can detect metabolites such as glucose and lactate associated with tumor metabolism.”
Published studies support that electrochemical enzyme-based biosensors can detect tumor-related metabolites such as glucose and lactate. Evidence includes cancer-cell and tumor-sample experiments using glucose- and lactate-oxidase sensors. The main caveat is that many demonstrations are proof-of-concept or ex vivo, so capability is established more clearly than routine clinical use.