Method for brewing lotus root vinegar

Abstract

The invention discloses a method for brewing lotus root vinegar, belonging to the technical field of food. The method comprises the following steps: (1) preparation of fermentation broth: smashing lotus roots, adding amylase for liquefaction, carrying out heating for enzyme deactivation after completion of liquefaction, then carrying out cooling and adding glucoamylase for saccharification so as to obtain the fermentation broth; (2) alcoholic fermentation: weighing active dry yeast, activating the active dry yeast, adding the activated active dry yeast into the fermentation broth prepared in the step (1), carrying out fermentation at 28-30 DEG C and terminating fermentation when the alcohol content of the fermentation broth is 7 to 8% (v / v) so as to obtain the fermentation broth having undergone alcoholic fermentation; and (3) acetic fermentation: adding Acetobacter rancens and auxiliary materials into the fermentation broth having undergone alcoholic fermentation in the step (2), carrying out fermentation at 28-30 DEG C, adding salt to terminate fermentation when the acetic acid degree of the fermentation broth having undergone alcoholic fermentation is no less than 3.5 g / 100 ml so as to obtain the fermentation broth having undergone acetic fermentation, and successively carrying out filtering, homogenization and sterilization so as to obtain the lotus root vinegar. The methodof the invention uses the lotus roots as a raw material and carries out alcoholic fermentation and acetic fermentation; and the prepared lotus root vinegar has good taste and rich nutrients, and thepreparation method is simple operation, short in fermentation cycle and high in efficiency.

Description

technical field [0001] The invention relates to the technical field of food, in particular to a brewing method of lotus root vinegar. Background technique [0002] Lotus root has high nutritional value. Lotus root is slightly crisp and sweet. It can be eaten raw or cooked, and its medicinal value is quite high. Raw lotus root is cold in nature and has the effect of clearing away heat and cooling blood. It can be used to treat febrile diseases. It is especially beneficial for those who suffer from fever, thirst, hemoptysis, and bleeding. Lotus root contains mucus protein and dietary fiber, which can combine with cholate in the human body, cholesterol and triglyceride in food, so that it can be excreted from the feces and reduce the absorption of lipids. Lotus root also has tannins, which can strengthen the spleen and relieve diarrhea. It can increase appetite, promote digestion, appetizers and invigorate the body, and is beneficial to those with poor appetite and loss of app...

AI Technical Summary

Problems solved by technology

[0003] At present, most of the vinegar in our country is brewed from grains, and most of them adopt submerged fermentation, and the fermentation cycle is long. There are few researches on brewing vinegar with lotus root as raw material, which is not conducive to the full development and utilization of lotus root.