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The American Biology Teacher (2019) 81 (9): 644–648.
Published: 01 December 2019
... granules by their characteristic birefringence, often called a Maltese cross. In the present study, we first identified raw potato starch granules by their birefringence, followed by three overlapping chemical methods to confirm the presence (or absence) of starch. First, Lugol's iodine solution, a starch...