Science Buddies: "Ask an Expert"

I'm making a homemade turbidity meter to find the level of protease in various pineapple juice. I found a project that tracks the changes in protease activity but not the amount of protease. So in conclusion, I am wondering if I can use a turbidity meter to find the amount of protease activity in pineapple milk. Please help.

Hi jy111,

I’m assuming that you’re working on the project described here:

https://www.sciencebuddies.org/science- ... ml#summary

In this project you use a turbidity meter to track changes in turbidity of milk as a protease from pineapple juice “chops up” the proteins from the milk. The rate that the milk solution loses turbidity (“clears up”) is an indication of the amount of protease activity.

I hope this helps and good luck with your project. Please post again if you have more questions.

A. Norman