Development Of Fruit Vinegar,Fruit Wine With Berberis Nummularia Bge. And Preliminary Study On Its Pigment

This article using Berberis nummularia Bge. as a raw material.The main researches include fruit vinegar,fruit wine production of Berberis nummularia Bge.,the optimum conditions for the extraction and stability and edible safety of its pigment.The main result of study is as the following:1.It was researched the fruit vinegar production with liquid fermentation.A kind of fruit vinegar beverage was prepared by mixing fruit vinegar with fruit juice and honey.As indicated in the experiment that the Berberis nummularia Bge. fruit vinegar had full-bodied fruity and adequate tart flavors.With the response surface method the optimal recipe of fruit vinegar beverge is:fruit vinegar 11mL/100mL, fruit juice 29mL/100mL,honey 18g/100mL.2.It was used the response surface method from ferment temperature,maceration time and Fig content, the results showed the optimum ferment conditions for the Berberis nummularia Bge.fruit wine was as follows: ferment temperature 25℃,maceration time 7d and Fig content 0.35kg/kg. The Berberis nummularia Bge. fruit wine is pale ruby-red,aroma pure and fresh,imported sleek and comfortable,and good coordination.The physical and chemical index of fruit wine is:reducing sugar(use glucose count): 1.94g/L;alcohol degree,11.6%(V/V);total acid(use tartaric count), 6.39g/L;volatile acid(use acetic acid count), 0.55g/L; color intensity, 0.517;tinnin, 0.204g/L. 23 kind of aroma components were identified with GC/MS analysis in Berberis nummularia Bge.fruit wine,including 6 alcohols,11 esters,4 acids,1 alkanes and 1 glycosidees,the highest relative content is 2,3-butanediol.3.The response surface method was applied in optimization of the extraction of Berberis nummularia Bge. pigment.The results showed,the optimum conditions for the Berberis nummularia Bge.pigment extraction was as follows: 75%ethanol solvents, 1:42, solvent pH4.The pigment of Berberis nummularia Bge.is stable to glucose and citric acid; sorbic acid and high consistence Na2S2O3 have function of protect the color;ascorbic acid has the discoloration;it is poor in enduring H2O2 and light;it should be used in acid condition(pH<7);it is stable to heat(<80℃); the high consistency of Fe3+,Cu2+ have obvious effect on the pigment stability.The pigment was as a kind of no toxicity substance with toxicological experment.