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Background
Summary of current methods used in Aloe
composition analysis:
•
NMR ‐ quantification of polysaccharides and
providing aloe fingerprint for identification;
–
Quantification of polysaccharides by analysis of the
content of acetyl groups;
–
Quantification of organic acids including acetic acid, lactic
acid, malic acid and isocitric acid;
•
GC – quantification of aloe organic acid, such as acids
of lactic, malic, citric, isocitric, etc.; quantification of
monosaccharides including existed monosaccharides
or hydrolyzed from polysaccharides;
Background
Summary of current methods used in Aloe
composition analysis (
cont’d
):
•
Colorimetric – quantification of aloe polysaccharides
by photometric analysis;
•
GPC – providing fingerprint of aloe polysaccharides
and their molecular weight and size;
•
HPLC – quantification of organic acids, including
oxalic, malic, isocitric, lactic, citric, fumaric acid, and
isocitric acid lactone; providing aloe fingerprint for
identification;