CN106987489B - Brewing method and application of fragrant jade dry white wine - Google Patents

Abstract

The invention discloses a brewing method and application of fragrant jade dry white wine. The method comprises the steps of grape sorting, peduncle removing and crushing, short-term skin dipping, skin and residue separation, pure juice fermentation, fermentation termination, sealed storage, glue adding, filtering, bottling and the like, wherein the key improvement point is as follows: short-term soaking for 36 h after stem removal and crushing, wherein the soaking temperature is 20 ℃, and a preferred commercial yeast E491 is adopted. The sensory evaluation score of the improved brewed fragrant jade dry white wine is 81.0 minutes, while the sensory evaluation score of the fragrant jade dry white wine under the traditional process and other dipping process conditions is 71.3-75.9 minutes; meanwhile, the aroma component content (119.55 mg/L) and the dry extract (18.49 g/L) of the wine brewed by the invention are respectively and obviously higher than 104.39-115.13 mg/L and 17.21-17.62 g/L of other treatments, and the wine is light golden yellow, clear and transparent, light and refreshing, strong in fruit aroma and capable of emitting the aroma of fruits such as lemon, citrus and the like.

Description

Brewing method and application of fragrant jade dry white wine

Technical Field

The invention relates to the technical field of wines and brewing processes thereof, in particular to a brewing method and application of fragrant jade dry white wine.

Background

Fragrant grape, hybrid between Europe and America. The growth vigor is vigorous, the maximum leaf diameter is 40 cm, the yield is good, and the disease resistance is strong. The amount of the fruit is 120 days after the fruit sprouts to be ripe, the fruit cluster is large, the average cluster weight is 610 g, the maximum cluster weight is 850 g, the fruit grains are large, the average grain weight is 8 g, the maximum grain weight is 13 g, the average single fruit weight can reach 12 g after the fruit sprouts are subjected to expansion treatment, the peel of the ripe fruit grains is light yellow, and the color is consistent. The fruit juice is delicious, the fruit taste is sweet, the jasmine fragrance is mellow, and the jasmine fragrance is deeply loved by consumers.

With the continuous expansion of the cultivation area of the fragrant jade grapes, the yield is increased, but the shelf life of the fresh grapes is short, and the development of a product with high added value is necessary according to the characteristics of the variety. The variety has strong fragrance and potential for brewing aromatic dry white wine. Therefore, the fragrant jade grapes are deeply processed into the fragrant dry white wine, the grape industry chain can be effectively extended, and the industry added value is improved. However, the traditional dry-white process applied to the fragrant jade grapes has the problems of poor aroma, weak wine body, low dry extract content and the like, and a skinned dipping process needs to be added, and factors such as raw material dipping time, dipping temperature, yeast and the like are optimized.

Disclosure of Invention

The invention aims at the variety and characteristics of fragrant jade grapes, and provides a method for brewing fragrant jade dry white wine, which is prepared from fragrant jade grapes serving as raw materials, is light golden yellow in appearance and color, clear and transparent, typically strong in fragrance and light in wine body.

In order to achieve the purpose, the invention discloses the following technical scheme:

a brewing method of fragrant dry white wine comprises selecting fructus Vitis Viniferae, removing stalks, crushing, soaking for a short time, fermenting pure juice, terminating fermentation, sealing, storing, adding gelatin, filtering, and bottling. The method is characterized in that:

(1) grape sorting: removing mildewed and damaged grape berries, rotted leaves, impurities and the like;

(2) removing stems and crushing: removing stems of 100% of grape raw materials, crushing, putting into a tank, adding sulfur dioxide while feeding, adding 60-80 mg of sulfur dioxide and 30-40 mg of pectinase into each kilogram of grape raw materials, and performing closed circulation once;

(3) short-term impregnation: adding 150-250 mg/L saccharomyces cerevisiae after 12 h of sulfur dioxide, controlling the temperature to be 20 ℃, soaking for 36 h, observing the generation condition of a wine cap, and pressing the cap in time;

(4) pure juice fermentation: separating the skin and residue of the steeped grape mash, fermenting with pure juice, adjusting sugar content as required when the specific gravity is rapidly reduced when the fermentation is vigorous, and calculating according to the potential alcohol content and the target alcohol content of 12% (V/V), and the conversion of 17g/L into 1% (V/V) alcohol content, but the sugar content is not more than 34 g/L; monitoring specific gravity and temperature, and controlling fermentation temperature at 18-20 deg.C;

(5) and (3) stopping fermentation: separating and transferring to a tank when the residual sugar content is less than 4 g/L, and adding 60-80 mg/L sulfur dioxide to terminate fermentation to obtain wine base;

(6) and (3) sealing and storing: carrying out physical and chemical analysis on the grape wine base, adjusting the concentration value of free sulfur dioxide to be 20-30 mg/L, and then filling the tank for sealed storage;

(7) glue adding, filtering and bottling: performing glue adding treatment on the raw wine, wherein the glue adding material is bentonite, and the using amount is 500-1000 mg/L; filtering the degummed sake with diatomite and a 0.45 mu m membrane, and filling.

The invention further discloses application of the jasper dry white wine in improving sensory evaluation scores, total content of aroma components and dry extract content. The experimental results show that: the sensory evaluation score of the fragrant jade dry white wine brewed by the method is 81.0 minutes, and the sensory evaluation score of the fragrant jade dry white wine under the conditions of the traditional process and other dipping processes is 71.3-75.9 minutes; meanwhile, the aroma component content (119.55 mg/L) and the dry extract (18.49 g/L) of the wine brewed by the invention are respectively and obviously higher than 104.39-115.13 mg/L and 17.21-17.62 g/L of other treatments, and the wine is light golden yellow, clear and transparent, light and refreshing, strong in fruit aroma and capable of emitting the aroma of fruits such as lemon, citrus and the like.

The brewing method of the fragrant jade dry white wine is described as follows:

(1) grape sorting: removing mildewed and damaged grape berries, rotted leaves, impurities and the like;

(2) removing stems and crushing: removing stems of 100% of grape raw materials, crushing, putting into a tank, adding sulfur dioxide while feeding, adding 60-80 mg of sulfur dioxide and 30-40 mg of pectinase into each kilogram of grape raw materials, and performing closed circulation once;

(3) short-term impregnation: adding 150-250 mg/L saccharomyces cerevisiae after 12 h of sulfur dioxide, controlling the temperature to be 20 ℃, soaking for 36 h, observing the generation condition of a wine cap, and pressing the cap in time;

(4) pure juice fermentation: separating the skin and residue of the steeped grape mash, fermenting with pure juice, adjusting sugar content as required when the specific gravity is rapidly reduced when the fermentation is vigorous, and calculating according to the potential alcohol content and the target alcohol content of 12% (V/V), and the conversion of 17g/L into 1% (V/V) alcohol content, but the sugar content is not more than 34 g/L; monitoring specific gravity and temperature, and controlling fermentation temperature at 18-20 deg.C;

(5) and (3) stopping fermentation: separating and transferring to a tank when the residual sugar content is less than 4 g/L, and adding 60-80 mg/L sulfur dioxide to terminate fermentation to obtain wine base;

(6) and (3) sealing and storing: carrying out physical and chemical analysis on the grape wine base, adjusting the concentration value of free sulfur dioxide to be 20-30 mg/L, and then filling the tank for sealed storage;

(7) glue adding, filtering and bottling: performing glue adding treatment on the raw wine, wherein the glue adding material is bentonite, and the using amount is 500-1000 mg/L; filtering the degummed sake with diatomite and a 0.45 mu m membrane, and filling.

The pectinase is Lafase pectinase from LaFFORT, France. The yeast is E491 of the France LAFFORT company.

In the research of the improved brewing method of the fragrant jade dry white wine, the following contents are mainly considered:

(1) optimizing the dipping temperature in the short-term belt dipping process, wherein the optimization range is 8-20 ℃;

(2) optimizing the dipping time in the short-term belt dipping process, wherein the optimization range is 12-36 h;

(3) selection of good yeasts suitable for muscadine grapes from 7 commercial yeasts: comprises brewing wine K1, R-HST, RC212 and DV10 of French LALLEMAND company, yeast special for Angel wine fruit wine of Angel yeast GmbH of Hubei China, and Saccharomyces cerevisiae E491 of French LAFFORT company;

the key points of the brewing process finally determined by experimental comparison are as follows:

(1) carrying out short-term skin-carrying impregnation after removing stalks and crushing the grape raw materials, wherein the impregnation temperature is 20 ℃, and the impregnation time is 36 h; aims to extract more phenolic substances and aroma precursors from the peel, so that the dry extract content of the wine is higher, the wine body is fuller, and the aroma components of the wine are richer.

(2) A preferred commercial saccharomyces cerevisiae E491 was employed; aims to produce stronger and more typical aroma in the alcohol fermentation process.

The 2 key processes are simultaneously used, and the problems of poor aroma, weak wine body, low dry extract content and the like in the brewing of fragrant jade dry white wine by the traditional dry white process are mainly solved.

The sensory evaluation score, aroma components and dry extract content of the fragrant jade dry white wine brewed by jointly using the 2 process key points are obviously improved, and the experimental result shows that: the sensory evaluation score of the fragrant jade dry white wine brewed by the method is 81.0 minutes, and the sensory evaluation score of the fragrant jade dry white wine under the conditions of the traditional process and other dipping processes is 71.3-75.9 minutes; meanwhile, the aroma component content (119.55 mg/L) and the dry extract (18.49 g/L) of the wine brewed by the invention are respectively and obviously higher than 104.39-115.13 mg/L and 17.21-17.62 g/L of other treatments, and the wine is light golden yellow, clear and transparent, light and refreshing, strong in fruit aroma and capable of emitting the aroma of fruits such as lemon, citrus and the like.

Drawings

FIG. 1 is a process flow diagram of the present invention.

Detailed Description

The invention is described below by means of specific embodiments. Unless otherwise specified, the technical means used in the present invention are well known to those skilled in the art. In addition, the embodiments should be considered illustrative, and not restrictive, of the scope of the invention, which is defined solely by the claims. It will be apparent to those skilled in the art that various changes or modifications in the components and amounts of the materials used in these embodiments can be made without departing from the spirit and scope of the invention. The raw materials and reagents used in the present invention are commercially available. Wherein the pectinase is Lafase pectinase from LaFFORT, France. The yeast is E491 of the France LAFFORT company. The bentonite used is a bentonite clarifier from LALLEMAND France, and the diatomaceous earth is a commercial food-grade powdery diatomaceous earth filter aid.

Example 1

(1) Grape sorting: removing mildewed and damaged grape berries, rotted leaves, impurities and the like;

(2) removing stems and crushing: after 100% of grape raw materials are subjected to stem removal and crushing, putting the grape raw materials into a tank, adding sulfur dioxide while feeding, adding 60 mg of sulfur dioxide and 40 mg of pectinase into each kilogram of grape raw materials, and performing closed circulation once;

(3) short-term impregnation: adding sulfur dioxide for 12 h, adding 200 mg/L Saccharomyces cerevisiae, controlling the temperature at 20 deg.C, soaking for 36 h, observing the generation of wine cap, and pressing cap in time;

(4) pure juice fermentation: separating the skin and residue of the steeped grape mash, fermenting with pure juice, adjusting sugar content as required when the specific gravity is rapidly reduced when the fermentation is vigorous, and calculating according to the potential alcohol content and the target alcohol content of 12% (V/V), and the conversion of 17g/L into 1% (V/V) alcohol content, but the sugar content is not more than 34 g/L; monitoring specific gravity and temperature, and controlling fermentation temperature at 18-20 deg.C;

(5) and (3) stopping fermentation: when the residual sugar content is less than 4 g/L, separating and transferring to a tank, and adding 60 mg/L sulfur dioxide to terminate fermentation to obtain wine base;

(6) and (3) sealing and storing: carrying out physical and chemical analysis on the grape wine base, adjusting the concentration value of free sulfur dioxide to be 25 mg/L, and then filling the tank for sealed storage;

(7) glue adding, filtering and bottling: performing glue adding treatment on the raw wine, wherein the glue adding material is bentonite, and the using amount is 800 mg/L; filtering the degummed sake with diatomite and a 0.45 mu m membrane, and filling.

Report of test results of the invention

Appendix A: physical and chemical indexes

Appendix B: sensory quality score

Note: wine-like sensory rating scale standard: superior product > 90; and (4) excellent products: 80-89; qualified product, 70-79; unqualified product, 65-69; poor quality product, < 65.

Appendix C: microbiological indicator

The fragrant jade dry white wine brewed by the invention has a test drinking result

Project fragrant jade dry white wine

The specific evaluation criteria are as follows:

the mouthfeel is good: the wine has the advantages of fine and smooth mouthfeel, balanced, complete and harmonious wine body, aftertaste and pleasant style of the product; the mouthfeel is general: the wine body is balanced and complete, but the taste is not fine and smooth, and the pleasant style is lacked; the mouthfeel is poor: has no fragrance when drunk and no fragrance when smelled, and has prominent sour and astringent feeling.

As can be seen from the table, the fermented wine of the present invention had good taste and was evaluated to be 78% or more in 128 persons tasting the wine and more than 100 persons.

Example 2

Comparative test

And (4) conclusion: the sensory evaluation score, the dry extract content, the aroma component content, the total phenol content, the total anthocyanin content and the chromatic value of the fragrant jade dry white wine brewed by the method are all higher than those of the traditional method.

Claims (1)

1. A brewing method of fragrant dry white wine comprises selecting fructus Vitis Viniferae, removing stalks, crushing, soaking for a short time, fermenting pure juice, terminating fermentation, sealing, storing, adding gelatin, filtering, and bottling; the method is characterized in that:

(1) grape sorting: removing mildewed and damaged grape berries, rotted leaves and impurities;

(2) removing stems and crushing: removing stalks of 100% of grape raw materials, crushing, putting into a tank, adding sulfur dioxide while feeding, adding 60-80 mg of sulfur dioxide and 30-40 mg of pectinase Lafase into each kilogram of grape raw materials, and performing closed circulation once;

(3) short-term impregnation: adding 150-250 mg/L saccharomyces cerevisiae E491 after 12 h of sulfur dioxide, controlling the temperature at 20 ℃, soaking for 36 h, observing the generation condition of a wine cap, and pressing the cap in time;

(4) pure juice fermentation: separating the skin and residue of the steeped grape mash, fermenting with pure juice, adjusting sugar content as required when the specific gravity is rapidly reduced when the fermentation is vigorous, and calculating according to the potential alcohol content and the target alcohol content of 12% (V/V), and the conversion of 17g/L into 1% (V/V) alcohol content, but the sugar content is not more than 34 g/L; monitoring specific gravity and temperature, and controlling fermentation temperature at 18-20 deg.C;

(5) and (3) stopping fermentation: separating and transferring to a tank when the residual sugar content is less than 4 g/L, and adding 60-80 mg/L sulfur dioxide to terminate fermentation to obtain wine base;

(6) and (3) sealing and storing: carrying out physical and chemical analysis on the grape wine base, adjusting the concentration value of free sulfur dioxide to be 20-30 mg/L, and then filling the tank for sealed storage;

(7) glue adding, filtering and bottling: performing glue adding treatment on the raw wine, wherein the glue adding material is bentonite, and the using amount is 500-1000 mg/L; filtering the degummed sake with diatomite and a 0.45 mu m membrane, and filling.

Images