Rapid Determination of the Freshness of Lotus Seeds Using Surface Desorption Atmospheric Pressure Chemical Ionization-Mass Spectrometry with Multivariate Analyses

Table 1

Classification result of different lotus seeds based on BP-ANNs.

Lotus seeds	Fresh	Aged	Stored for 0 years	Stored for 1 year	Stored for 2 years	Stored for 3 years
Training sets accuracy	100	92.5	100	100	100	96.0
Test sets accuracy	95.0	91.7	82.4	85.0	100	84.0