Orange (fruit) orange juice between the São Paulo and mid-south Florida areas makes up roughly 85% of the world market. Brazil exports 99% of its production, while 90% of Florida's production is consumed in the United States. Orange juice is traded internationally in the form of frozen, concentrated orange juice to reduce the volume used so that storage and transportation costs are lower. Oranges, whose flavor may vary from sweet to sour, are commonly peeled and eaten fresh or squeezed for juice. The thick bitter rind is usually discarded, but can be processed into animal feed by desiccation, using pressure and heat.
Orange juice by heating the juice for 1 minute at 90 °C. Interactions of pectin The solution behavior of pectin is strongly influenced by a number of factors including hydrogen bonding, ionic character, and hydrophobic character. Hydrogen bonding is favored when pH is less than pKa while the ionic character is favored when pH is greater than pKa. Ionic character relies on free carboxyl content, the presence of cations, and is favored at a high water activity. Charge-charge repulsions along with the presence of neutral side chains are essential in inhibiting intermolecular association among pectin molecules. The methyl ester content in orange