Several factors can influence the activity of maltase: 1. pH Levels: Maltase operates optimally at a specific pH range, typically around neutral pH. 2. Temperature: Like most enzymes, maltase has an optimal temperature range. Extreme temperatures can denature the enzyme, reducing its activity. 3. Substrate Concentration: The availability of maltose can affect the rate of reaction. Higher substrate concentrations generally increase the rate until the enzyme becomes saturated.