The Great Avocado Caper

Deposits of white material on avocado surfaces appearing at a food processing company were submitted to our laboratory for analysis.  Each avocado was sealed separately in plastic and no package tampering was observed during a careful examination.  The white material was isolated and recrystallized.  Polarized light microscopy demonstrated that the vast majority of the residue was comprised of a single, crystalline phase.  Chemical analysis identified these crystals as perseitol, a naturally occurring sugar in avocados.  The client was pleased to learn that the offending material was related to the product and not a result of foreign contamination or tampering.

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