紫薯苦荞复合醋饮料的研制及其风味物质分析

以紫薯和苦荞为主要原料,研制一种紫薯苦荞复合醋饮料,并分析其风味组成。将紫薯和苦荞分别粉碎、调浆、糖化、酒精发酵、醋酸发酵制得紫薯醋和苦荞醋,通过单因素和正交试验确定紫薯苦荞复合醋饮料的最优配方:紫薯醋原液4mL、苦荞醋原液4mL、蔗糖4g、果葡糖浆4g,加水定容至100mL;该条件下制备的醋饮料具有紫薯和苦荞特有醋香味、色泽红亮、酸甜可口。HPLC和GC—MS分析结果表明,紫薯苦荞复合醋饮料共检出乙酸、柠檬酸、琥珀酸、乳酸等7种有机酸,苯乙醇、苯甲醛、乙酸苯乙酯等14种挥发性成分。

Development and flavor substances analysis of purple sweet potato and bitter buckwheat combined vinegar beverage

A vinegar beverage combined with purple sweet potato and bitter buckwheat was developed, and the flavor compounds in it were analyzed. Purple sweet potato and buckwheat were processed through smashing, size mixing, saccharification, alcoholic fermentation and acetic fermentation to produce brew purple sweet potato and buckwheat vinegar, respectively.. The optimum formula of the vinegar beverage was obtained through single factor and orthogonal experiments. The 100 mL optimum complex contained 4 mL purple potato vinegar stock solution, 4 mL buckwheat vinegar stock solution,4 g saccharose, and 4 g fructose-glucose syrup. The vinegar beverage prepared under this condition had a unique purple potato and buckwheat vinegar flavor which was red bright, sweet and sour. Seven organic acid including acetic acid, citric acid, acetic acid, lactic acid, etc. and 14 kinds of flavor substances such as benzene alcohol, benzene formaldehyde, acetic acid benzyl ester, etc. were detected, by using High Performance Liquid Chromatography and Gas Chromatography-Mass Spectrometer in this vinegar beverage.