Effects of different clarifying agents on clarification of wild strawberry wine
Based on wild strawberry wine treated by filtering,the proper clarifying agents were screened among the five clarifying agents of gelatin,bentonite,pectinase,PVPP and chitosan and their compounds u-sing the single factor test and response surface design.The quality sensory was also evaluated through de-termining the series of indexes,including the transmittance,chroma,reducing sugar,total acid,soluble solid and the stability of the wine.The results showed that chitosan was comparatively a better clarify agent than others,the transmittance of wine reached 90.5% by the use of 2.2 g/L chitosan.The mixed agents showed a better clarifying effect than single one,and the optimum formula of the mixed was composed of 2.04 g/L chitosan,5.48 g/L bentonite and 0.94 g/L PVPP.