|MadSci Network: Botany|
Dear Mr. Waryck: On a cellular level orange juice comes primarily from the cytoplasm of the fruit cells. Its composition is primarily water(ca 87%). Other constituents include carbohydrate (11-12%., primarily simple sugars), fiber (0.5%, from the pulp, pectin, etc.), ash (0.5%, minerals), ascorbic acid (50 mg) and vitamin A (205 International Units). These values will vary depending on the variety of oranges used to produce the juice, environmental conditions during the growing season. etc. I hope information provides the answer to your questions. Sincerely, Al Bushway Professor of Food Science
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