Difference of Ascorbic acid (AA) dissolved or precipitated in Glycerol?
Referring to pat US20110008445A1
Solution 1
At 25C, AA was dissolved in glycerol and alcohol (subsequently removed by distillation).
The AA was measured using scattered light (JIS K0101 using formazine as ref).
5 µm sized particles of AA were found to be dissolved in the glycerol.
Solution 1a
Solution 1 was aged at 28C for 10 days.
10% AA remained dissolved
90% AA precipitated
25 µm sized particles of AA were found to be suspended in the glycerol.
Solution 1b
Solution 1 was aged at 15C for 10 days.
10% AA remained dissolved
90% precipitated
80 µm sized particles of AA were found to be suspended in the glycerol.
Analysis
A key aspect of the experiment focusses on AA being in two different states:
Dissolved and Precipitated
The implication is that the AA is somehow different, otherwise why mention dissolved and precipitation?
Also, the AA was initially dissolved in glycerol and alcohol.
Therefore the AA was
- Dissolved in Glycerol and Alcohol
- Dissolved in Glycerol
- Precipitated and suspended in Glycerol
Question
Does Ascorbic Acid remain in its usable form, in all three scenarios?
('Usable' relates to applying this concept, of dissolving the AA in Glycerol and Alcohol, as a precursor to AA encapsulation in lecithin emulsion).