I have a question about the pineapple article: http://postharvest.ucdavis.edu/PFfruits/Pineapple/
Some say that turning a pineapple upside down will help distribute the sugars in the pineapple. Is this true? (B.K.)
It has been shown that concentrations of sugars and organic acids vary among fruitlets and regions of the pineapple fruit. However, I do not know of any scientific evidence that sugars and organic acids (usually located as soluble solids in the cell vacuoles) move from one region to another region of the harvested pineapple fruit.
--Adel A. Kader