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PhytoCeutica,
Inc. 5 Science Park, Suite 13 New Haven,
CT 06511
Phone: 203-777-3462 Fax: 203-777-3538 E-mail: info@phytoceutica.com |
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Genomic Bioreponse Profiling > Phytomics Similarity Index™ _____________________________________________ |
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Phytomics Similarity
Index™ (PSI): Pattern Comparison
PhytoCeutica has developed a novel method
to compare the information intensive patterns that considers not only
the individual peak intensities but also the complete set of ratios
of all of the various peaks. Comparison
of the entire pattern by measuring the correlation between two such
intensity ratio matrices from different botanical batches results
in a value called the Phytomics Similarity Index (PSI) that ranges
between 0 (completely dissimilar) to 1 (complete identity).
The PSI values can be weighted by the relative individual peak
intensity for each compound, compound relevance, etc.
PSI analysis is superior in cases where there is significant
linkage between individual elements within the overall pattern that
may be relevant to quality control and rapidly reveals outlier peaks
within the pattern. |
