Drying staves in ovens is quicker and cheaper, however the chemical changes do not occur.

强盗在烘炉中干燥快、费用，但不会发生的化学变化。

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After experimenting with more than a dozen different formulations, drying them with custom-made machinery and heating them in ovens to test shelf life, Nektar hit upon a successful recipe that mixes insulin with glycine (an amino acid), citrate (the salt of an organic acid found in humans) and mannitol (a sugar used in intravenous products).

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