Fuzzy Mathematical Comprehensive Evaluation Method Combined with Orthogonal Experiments to Optimize the Oolong Tea Extrac-tion Process
[Objective]To optimize the oolong tea extraction process.[Method]By using sensory evaluation and physicochemical indexes as e-valuation indexes,building a comprehensive evaluation system using a fuzzy mathematical comprehensive evaluation method,and using the fuzzy comprehensive evaluation score as evaluation indexes by orthogonal experiments based on the results of a single-factor experiment.[Re-sult]The findings demonstrated that each factor had an impact on the oolong tea extraction process in the following order:time>material-liquid ratio>temperature>addition of-cyclodextrin.The ideal oolong tea extraction process was determined to be:extraction temperature 75℃,addi-tion of-cyclodextrin 0.1%,extraction time 30 min,and material-water ratio 1∶100.[Conclusion]Verified experiments have shown that under this condition,the fuzzy comprehensive evaluation score is the highest,and this method is scientifically stable and feasible.It may offer some theoretical backing and direction for the study and use of the oolong tea extraction process.