Application of Fuzzy Comprehensive Evaluation on the Chemical Quality Analysis to Fine Manipulated Leaves of Oolong Tea
One synthetic evaluation method to the chemical quality factors of fine manipulated leaves of Oolong Tea was established based on the fuzzy mathematics principle,considering the quality is the results of multi-factors coordinated action and of fuzziness characteristic.The weight to chemical quality factors of Oolong Tea was determined by analytic hierarchy process(AHP): polyphenols 0.134 1,amino acid 0.162 8,flavonoids 0.043 1,polysaccharide:0.077 6,water extract contents 0.246 1,polyphenols/amino acid 0.192 0,(amino acid+ polysaccharide)/polyphenols 0.144 4,by constructing the model of chemical quality factor of fine manipulated leaves of Oolong Tea,also passed the consistency test.Synthetically evaluated chemical quality factors of 15 fine manipulated leaves of Oolong Tea with the established fuzzy comprehensive evaluation,and compared with the result of the general evaluation method sensory evaluation,goodness of fit reached 86.7%.This provides a new method to chemical quality analysis of fine manipulated leaves of Oolong Tea.