Editing Orange juice (section)

==== Heat treatment ====
When orange juice is heat treated there is an increase in the number of fine particles and decrease in that of coarse particles. The fine particles in particular are responsible for the appearance, color, and flavor of orange juice. Heat treatment plays a vital role on pulp volume, cloud stability, serum [[turbidity]], and serum [[viscosity]]. Heat treatment stabilizes the cloud through enzyme inactivation and enhances the turbidity of a stable cloud formation. The increase in serum viscosity is due to the extraction of pectic substances into the serum. Based on Stokes' law, the increase in serum viscosity is the cause for the enhanced cloud stability. In relation to pulp volume, the pulp from heated juices was finer and more compact than unheated juice pulp, which was voluminous and fluffy.<ref name=":2" />