Abstract:
:We have identified and characterized a new solid form of trehalose, the δ form (Tδ) using (13)C solid-state NMR spectroscopy (SSNMR). Tδ is formed from dehydrations of trehalose dihydrate (T(h)) performed at or below 100 °C, and it is generated concurrently with the α form of trehalose (Tα) and amorphous trehalose (T(am)); the β form of trehalose (Tβ) has been observed in some dehydrated samples. Differential scanning calorimetry (DSC) and powder X-ray diffraction (PXRD) studies of samples containing Tδ do not indicate the presence of the new form. Tδ is metastable: upon exposure to temperatures above 80 °C, it converts to either Tα or Tam, and upon exposure to ambient humidity, it reverts to T(h).
journal_name
Mol Pharmjournal_title
Molecular pharmaceuticsauthors
Pyszczynski SJ,Munson EJdoi
10.1021/mp400104bsubject
Has Abstractpub_date
2013-09-03 00:00:00pages
3323-32issue
9eissn
1543-8384issn
1543-8392journal_volume
10pub_type
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