CN105942131B - A kind of compound ginger juice clarifying agent and the preparation method for clarifying ginger juice extracting solution - Google Patents

A kind of compound ginger juice clarifying agent and the preparation method for clarifying ginger juice extracting solution Download PDF

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CN105942131B
CN105942131B CN201610314359.5A CN201610314359A CN105942131B CN 105942131 B CN105942131 B CN 105942131B CN 201610314359 A CN201610314359 A CN 201610314359A CN 105942131 B CN105942131 B CN 105942131B
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ginger
ginger juice
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chitosan
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CN105942131A (en
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毕艳红
王朝宇
赵祥杰
杨荣玲
陈晓明
蒋长兴
张文静
苗金梁
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Tengshu Biotechnology Jiaxing Co ltd
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Huaiyin Institute of Technology
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    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L2/00Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/70Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
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    • A23L2/02Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation containing fruit or vegetable juices
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L2/00Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/70Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
    • A23L2/80Clarifying or fining of non-alcoholic beverages; Removing unwanted matter by adsorption
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L2/00Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/70Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
    • A23L2/82Clarifying or fining of non-alcoholic beverages; Removing unwanted matter by flocculation
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L2/00Non-alcoholic beverages; Dry compositions or concentrates therefor; Their preparation
    • A23L2/70Clarifying or fining of non-alcoholic beverages; Removing unwanted matter
    • A23L2/84Clarifying or fining of non-alcoholic beverages; Removing unwanted matter using microorganisms or biological material, e.g. enzymes
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23VINDEXING SCHEME RELATING TO FOODS, FOODSTUFFS OR NON-ALCOHOLIC BEVERAGES AND LACTIC OR PROPIONIC ACID BACTERIA USED IN FOODSTUFFS OR FOOD PREPARATION
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

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Abstract

The present invention relates to the preparation methods of a kind of compound ginger juice clarifying agent and clarification ginger juice extracting solution, belong to food processing technology field.Compound ginger juice clarifying agent, sodium alginate, sodium carboxymethylcellulose, xanthan gum, collagen and tea polyphenols are used cooperatively with recessed native loading chitosan, with excellent flocculating effect, with good biocompatibility, adaptability and safety, suspended matter and the pigment etc. in ginger juice more can be thoroughly adsorbed comprehensively, also there is antiseptic and inhibiting bacteria function effect simultaneously, can effectively extend ginger juice storage period;Clarify the preparation method of ginger juice extracting solution, the content of gingerol in the ginger juice for substantially increasing extraction while being sufficiently reserved each nutritional ingredient of raw material, nutriment is lost few, clarifying agent dosage is low, ginger juice stability is greatly improved, the ginger juice clear appearance of preparation is bright, color is sparkling and crystal-clear and reduces the pungent sense of ginger juice, and mouthfeel is aromatic, and aesthetic quality significantly improves.

Description

A kind of compound ginger juice clarifying agent and the preparation method for clarifying ginger juice extracting solution
Technical field
The invention belongs to food processing technology field, it is related to a kind of compound ginger juice clarifying agent and clarifies the system of ginger juice extracting solution Preparation Method.
Background technique
Ginger is generally called ginger, acrid flavour, warm-natured, has the function of inducing sweat and dispelling exogenous evils, preventing phlegm from forming and stopping coughing, appetizing preventing or arresting vomiting, be it is a kind of extensively The medical and edible dual purpose plant of general application, in addition to containing the major physiologicals active material such as zingerone, gingerol, also containing protein, more glucosides, Vitamin and various trace elements.Every 100 g fresh ginger edible part contains 1.4 g of protein, 0.7 g of fat, sugar 8.8 g, calcium 20 mg, 45 mg of phosphorus, 7 mg of iron, 0.18 g of carrotene, 0.01 mg of vitamin B1,4 mg of vitamin C and niacin 0.4 Mg etc..Ginger is edible with loose meat rhizome, is one of indispensable important flavouring in people's daily life.
China is cradle and one of the main country of origin of ginger, and the China that is planted in of ginger has a long history.20 After century, China also gradually becomes one of the leading exporter of ginger.But the storage of ginger is more difficult, perishable rotten therefore every To the harvest season, producing region ginger loses very big.So far, the trade main body of ginger is still rhizoma zingiberis, and the edible more works of ginger are common Seasoning, in China always based on former ginger or ginger powder, utilization rate is extremely low.
In recent years, a variety of ginger health foods are developed both at home and abroad, such as ginger ale, ginger tea, ginger vinegar beverage, ginger juice dairy Product, Milk Coagulation with Ginger Juice, flavor compounds in ginger pot foods, Radix Glycyrrhizae smoked plum ginger, green onion crisp sweets ginger splices etc..Ginger juice is widely used in opening for beverage Hair and production, but at present using ginger be Raw material processing at drink be eating made of embedding medium or spray drying process mostly Solid ginger beverage.Clear appearance is bright, color is sparkling and crystal-clear, pure and fresh tasty and refreshing clarification type ginger juice drink phoenix feathers and unicorn horns.
Present invention experiment discovery ginger clarification of juice has the quality of the system of holding stablized and ensure product very heavy The meaning wanted.The country generallys use enzyme process and carries out ginger clarification of juice at present, is hydrolyzed using enzyme preparations such as pectase, amylase It can cause muddy pectin substance and polysaccharide in fruit juice, so that other colloids in fruit juice is lost the protective effect of pectin and common Precipitating, to reach clear purpose, while improving production efficiency and crushing juice rate, also highly beneficial to holding nutritional ingredient. Pectase preparation is the general name for decomposing a variety of enzymes of pectin, mainly there is pectinesterase (PE), polygalacturonase (PG) etc., dry enzyme Preparation dosage is generally 2 ~ 4 g/L, and 45 ~ 55 DEG C of reaction temperature, 1 ~ 3 h of reaction time.The best work of enzymolyzing alpha-amylase starch Skill condition is: the pH for first adjusting the ginger Normal juice after being gelatinized is 4, then presses the amount of 0.2 mL/L, isothermal holding at a temperature of 60 DEG C 30 min。
But enzyme process clarification ginger juice exists simultaneously the disadvantages of complicated for operation, at high cost, clarifying effect is poor, and ginger juice is long-term quiet It ferments in setting vulnerable to microbial contamination rotten, not can guarantee its quality, it is necessary to preservative appropriate be added.
Wang Jihong, Kong Fandong etc. use gelatin tannin fining process, are shown by gelatin, tannin ginger juice clarification experiments: when Gelatin additive amount is 0.04 ‰, and tannin additive amount is 0.07 ‰, acts on 1 h under room temperature, light transmittance 98.6%, but color with Stability is relatively poor, affects greatly to sense organ, and secondary muddiness easily occurs.
Therefore, by preparing limpid bright quality stabilization and energy to ginger juice clarifying agent and clarification ginger juice Study on extraction The ginger juice product for keeping the active constituent contents such as gingerol to greatest extent, to widen ginger product market be it is necessary, simultaneously Also new approaches are provided for the comprehensive development and utilization of ginger.
Summary of the invention
For in the prior art, the above problem present in ginger juice extraction and clarification process provides a kind of multiple the present invention Ginger juice clarifying agent is closed, while additionally providing a kind of preparation method of clarification ginger juice extracting solution using the compound ginger juice clarifying agent.
Technical solution of the present invention is as follows:
A kind of compound ginger juice clarifying agent, is mixed by the raw material of following parts by weight: recessed soil loading chitosan 25~35, sea Mosanom 15~20, sodium carboxymethylcellulose 11~22, xanthan gum 13~16, collagen 5~8 and tea polyphenols 0.5~1;
The preparation method of the recessed native loading chitosan, step include:
1) recessed soil is calcined at 700 DEG C 4 h, after cooling, be added in the aqueous hydrochloric acid solution of 1 mol/L, recessed soil is in salt Concentration is 0.5 g/mL in aqueous acid, and constant temperature stirs 4 h at 90 DEG C, is then centrifuged for, and collects solid and is washed to neutrality, then It is added in the oxalic acid aqueous solution that mass fraction is 10%, additional amount is 0.5 g/mL, and 2 h are stirred at room temperature and stand 5 h, centrifugation point From collection solid is washed to neutrality, and 120 DEG C of drying obtain the recessed soil of acid activation;
2) by volume it is that 4:1 is mixed by 10wt% oxalic acid aqueous solution and 1wt% acetic acid aqueous solution, solution quality is then added Then solution is heated to 50 DEG C and kept the temperature complete to chitosan by 3% chitosan, 50~60rpm of speed of agitator in adition process Dissolution, obtains faint yellow viscid chitosan sol;
3) chitosan sol is taken, is diluted with the water of 2.5 times of volumes, is heated to 50 DEG C of 1 h of stirring, room temperature is then down to, by 5 The recessed soil of acid activation is added in g/ml concentration, stirs 5 h, and centrifugation filters, and 55 DEG C are dried under vacuum to constant weight, obtain recessed soil cursting glycan;
4) take the chitosan sol with step 3) same volume again, diluted with the water of 1 times of volume, be added step 3) load and Recessed soil cursting glycan after drying, 50 DEG C of 6 h of stirring are stood, and remove supernatant, and 2 times of bodies of chitosan sol are added into residue The NaOH aqueous solution of 1.0 long-pending mol/L, after stirring 1 h, centrifugation is washed to neutrality, filters, and 55 DEG C are dried under vacuum to constant weight, Obtain flaxen recessed native loading chitosan.
A kind of preparation method for clarifying ginger juice extracting solution, uses above-mentioned compound ginger juice clarifying agent, comprising the following steps:
1) by fresh ginger cleaning, slice, color stabilizer is added, it is dry, it is then crushed to the ginger powder of 40-60 mesh, is added 3 times The water of quality is moistened and is mixed, through twin-screw extruder extruding, is crushed to 100-200 mesh, obtains extruding ginger powder;
2) extruding ginger powder obtained in step 1) is mixed into obtain ginger slurry according to the mass ratio of 1:20 with water, be added thereto The pectase of 0.006wt% and the cellulase of 0.004wt% digest 30~60min at 5.5,40 DEG C of initial p H value;Then The glucoamylase of 0.012wt% is added, 30min~120min is digested at 4.5,55 DEG C of initial pH value, is risen after the completion of enzymatic hydrolysis Temperature keeps the temperature 6~10min, enzyme deactivation to 80 C, and cooling obtains enzymatic hydrolysis ginger slurry;
3) the organic cellulose as filter aid agent of 1~2wt% is added into enzymatic hydrolysis ginger slurry obtained by step 2, is uniformly mixed, 100 mesh Squeeze and filter collects ginger liquid and ginger slag respectively;
4) into the ginger liquid of step 3), the compound ginger juice clarifying agent of 0.5~2wt%, ultrasonic 5-60min, through 5000 r/ is added Min is centrifuged 20~30 min, obtains clarification ginger juice;
5) after 60 DEG C of dryings of ginger slag obtained by step 3), using the ethanol water of 60 wt % as extractant, solid-liquid ratio 1:15g/ ML extracts 15min at ultrasonic power 120W, 40 DEG C of ultrasonic temperature, and filtrate is collected in filtering, obtains ginger through rotary evaporation and extracts Object;
6) Ginger P.E of 0.01~0.1wt% is added into the resulting clarification ginger juice of step 4), is uniformly mixed, obtains clear Clear ginger juice extracting solution.
Described, ginger slice size is 0.5~1.0cm, 0.2~0.3cm of thickness in step 1);
Described, color stabilizer is aqueous citric acid solution, the 0.02-0.10wt% ascorbic acid of pH4.5~5.5 in step 1) One of distannous citrate aqueous solution of sodium water solution and 0.015-0.15wt% or several mixing;
It is described, in step 1) the jacket temperature of twin-screw extruder be 40~45 DEG C, screw speed be 100~ 120r/min, die orifice aperture are 5~10mm;
Described, ultrasound condition is 0.1~1.0MHz of supersonic frequency, 10~50 DEG C of temperature in step 4);
Described, compound ginger juice clarifying agent ingredient is recessed native loading chitosan, sodium alginate, carboxymethyl cellulose in step 4) Plain sodium, collagen and tea polyphenols.
Compound ginger juice clarifying agent provided by the invention is used cooperatively alginic acid using recessed native loading chitosan as main component Sodium, sodium carboxymethylcellulose, xanthan gum, collagen and tea polyphenols.Recessed soil has special fibre structure and unusual suction Attached performance, while the better than common recessed soil of effect that there is decoloring ability, and be acidified recessed soil removal invalid components.Chitosan is day Right cationic flocculant has excellent flocculating effect, while having good biocompatibility, adaptability and safety Property.Be acidified it is recessed soil and chitosan compounding, for ginger juice clarify, it is recessed soil in conjunction with chitosan can with it is negatively charged in acidic environment The substances such as soluble protein, cellulose, pectin, suspended particulate, tannin very strong agglutination occurs.In addition, by adding The auxiliary elements such as the sodium alginate, sodium carboxymethylcellulose, xanthan gum, collagen and the tea polyphenols that enter are assisted with recessed native loading chitosan Same synergy, sodium alginate, sodium carboxymethylcellulose and xanthan gum etc. form co-agglomeration object, and form compound with collagen, can make Cause the abundant coagulating sedimentations such as muddy albumen in ginger juice, remove tannin class impurity, more thoroughly adsorbs comprehensively outstanding in ginger juice Floating object and pigment etc. improve product yield and quality, shorten settling time, reduce cost, securely and reliably, while also having anti-corrosion Bacteriostasis can effectively extend ginger juice storage period.
In the preparation method of clarification ginger juice extracting solution provided by the invention, extruding and puffing technology is by high temperature, high pressure, height The effect of shearing makes starch gelatinization, protein denaturation, fat cell rupture, cellulose fracture in ginger powder, to health care function It is energy, relatively high to the more sensitive nutritional ingredient retention rate of heat, be conducive to the progress of following process.By glucoamylase, fruit The enzymolysis processings such as glue enzyme, cellulase are used cooperatively with the compound ginger juice clarifying agent of the present invention, and the intercellular layer of ginger cell wall is main For pectic substance, the main component of primary wall is cellulose, hemicellulose, and the main component of secondary wall is cellulose, and pectase can So that the macromolecular protopectin of long-chain resolves into small soluble molecules pectin, galacturonic acid oligosaccharides and the galacturonic of short chain Acid, cellulase energy catalyzing cellulose hydrolysis make cellulose solubilising and saccharification, and glucoamylase can be by the glucosides in liquid starch Key is gradually hydrolyzed to the oligosaccharide such as glucose, isomaltose, panose.Therefore pectase and cellulase is selected to be digested respectively With the cellulose outer wall for destroying the intercellular layer of cell wall, removing cell, easily causing in glucose starch enzymatic conversion ginger juice is muddy Starch and protein component obtain free exposed protoplast, to improve the crushing juice rate of ginger.In preparation method, to ginger Slag is extracted using vegetable oil and ethyl alcohol, is made to be mainly distributed on the nutritional ingredient gingerol etc. in ginger peel and is fully dissolved out, to greatest extent It remains ginger juice effective component, after clarifying treatment, then is digested with glucose oxidase, gluconic acid can be converted glucose into, Hydrogen peroxide is generated simultaneously, can remove the oxygen in ginger juice, so that it is effectively prevented rotten, removal natural pigment, anti-corrosive fresh-keeping, The delicious flavour of ginger juice can also be increased.
Technical solution of the present invention has the beneficial effect that
1) the compound ginger juice clarifying agent of the present invention is compounded with recessed soil and chitosan, fine with the use of sodium alginate, carboxymethyl Plain sodium, xanthan gum, collagen and tea polyphenols are tieed up, there is excellent flocculating effect, there is good biocompatibility, adaptability and peace Quan Xing.Suspended matter and the pigment etc. in ginger juice more can be thoroughly adsorbed comprehensively, can make to cause in ginger juice muddy albumen etc. sufficiently Coagulating sedimentation removes tannin class impurity, improves product yield and quality, shortens settling time, reduces cost, securely and reliably, together When also there is antiseptic and inhibiting bacteria function effect, can effectively extend ginger juice storage period.
2) preparation method of present invention clarification ginger juice extracting solution, mentions significantly while being sufficiently reserved each nutritional ingredient of raw material The content of gingerol in the high ginger juice extracted, nutriment are lost few, and clarifying agent dosage is low, and ginger juice is greatly improved and stablizes Property, the ginger juice clear appearance of preparation is bright, color is sparkling and crystal-clear and reduces the pungent sense of ginger juice, and mouthfeel is aromatic, and aesthetic quality is obvious It improves.
Specific embodiment
The beneficial effect of technical solution of the present invention is further illustrated below by embodiment and comparative example.
Biological enzyme used in the present invention is food-grade, Jiangsu Ruiyang Biological Technology Co., Ltd. is purchased from, if other raw material nothings It illustrates, is also that market is bought.
Embodiment 1
A kind of compound ginger juice clarifying agent, is mixed by the raw material of following parts by weight: recessed soil loading chitosan 30, alginic acid Sodium 18, sodium carboxymethylcellulose 16, xanthan gum 15, collagen 6 and tea polyphenols 0.7;
The preparation method of the recessed native loading chitosan, step include:
1) recessed soil is calcined at 700 DEG C 4 h, after cooling, be added in the aqueous hydrochloric acid solution of 1 mol/L, recessed soil is in salt Concentration is 0.5 g/ml in aqueous acid, and constant temperature stirs 4 h at 90 DEG C, is then centrifuged for, and collects solid and is washed to neutrality, then It is added in the oxalic acid aqueous solution that mass fraction is 10%, additional amount is 0.5 g/ml, and 2 h are stirred at room temperature and stand 5 h, centrifugation point From collection solid is washed to neutrality, and 120 DEG C of drying obtain the recessed soil of acid activation;
2) by volume it is that 4:1 is mixed by 10wt% oxalic acid aqueous solution and 1wt% acetic acid aqueous solution, solution quality is then added Then solution is heated to 50 DEG C and kept the temperature complete to chitosan by 3% chitosan, 50~60rpm of speed of agitator in adition process Dissolution, obtains faint yellow viscid chitosan sol;
3) chitosan sol is taken, is diluted with the water of 2.5 times of volumes, is heated to 50 DEG C of 1 h of stirring, room temperature is then down to, by 5 The recessed soil of acid activation is added in g/ml concentration, stirs 5 h, and centrifugation filters, and 55 DEG C are dried under vacuum to constant weight, obtain recessed soil cursting glycan;
4) take the chitosan sol with step 3) same volume again, diluted with the water of 1 times of volume, be added step 3) load and Recessed soil cursting glycan after drying, 50 DEG C of 6 h of stirring are stood, and remove supernatant, and 2 times of bodies of chitosan sol are added into residue The NaOH aqueous solution of 1.0 long-pending mol/L, after stirring 1 h, centrifugation is washed to neutrality, filters, and 55 DEG C are dried under vacuum to constant weight, Obtain flaxen recessed native loading chitosan.
Embodiment 2
A kind of compound ginger juice clarifying agent, is mixed by the raw material of following parts by weight: recessed soil loading chitosan 25, alginic acid Sodium 20, sodium carboxymethylcellulose 11, xanthan gum 13, collagen 5 and tea polyphenols 0.5;
Embodiment 3
A kind of compound ginger juice clarifying agent, is mixed by the raw material of following parts by weight: recessed soil loading chitosan 35, alginic acid Sodium 15, sodium carboxymethylcellulose 22, xanthan gum 16, collagen 8 and tea polyphenols 1.
Comparative example 1
A kind of compound clarifier is mixed by the raw material of following parts by weight: recessed native 30, chitosan 30, sodium alginate 18, Sodium carboxymethylcellulose 16, xanthan gum 15, collagen 6 and tea polyphenols 0.7;
Clarifying agent Contrast on effect: treated each 100g of ginger liquid is squeezed in pressure, is separately added into the preparation of the embodiment of the present invention 1~3 Clarifying agent and clarifying agent for comparison, clarifying agent dosage is 2g, and clarifying effect is shown in Table 1.
Comparison of the different clarifying agents of table 1 to ginger juice clarifying effect
Embodiment 4
A kind of preparation method for clarifying ginger juice extracting solution, uses the compound ginger juice clarifying agent of embodiment 1, including following step It is rapid:
1) by fresh ginger cleaning, slice, size is 0.5~1.0cm, 0.2~0.3cm of thickness, and addition volume ratio is 1:1 Aqueous citric acid solution (pH4.5~5.5) and ascorbic acid sodium water solution (0.02~0.10wt%) mixing color stabilizer, it is dry, Then it is crushed to the ginger powder of 40~60 mesh, the water of 3 times of quality is added, moistens and mixes, through twin-screw extruder extruding, jacket temperature is 40~45 DEG C, screw speed be 100~120r/min, die orifice aperture is 5~10mm, is then crushed to 100~200 mesh, obtain swollen Change ginger powder;
2) extruding ginger powder obtained in step 1) is mixed into obtain ginger slurry according to the mass ratio of 1:20 with water, be added thereto The pectase of 0.006wt% and the cellulase of 0.004wt% digest 30~60min at 5.5,40 DEG C of initial p H value;Then The glucoamylase of 0.012wt% is added, 30min~120min is digested at 4.5,55 DEG C of initial pH value, is risen after the completion of enzymatic hydrolysis Temperature keeps the temperature 6~10min, enzyme deactivation to 80 C, and cooling obtains enzymatic hydrolysis ginger slurry;
3) the organic cellulose as filter aid agent of 1~2wt% is added into enzymatic hydrolysis ginger slurry obtained by step 2, is uniformly mixed, 100 mesh Squeeze and filter collects ginger liquid and ginger slag respectively;
4) it into the ginger liquid of step 3), is added the compound ginger juice clarifying agent of 0.5~2wt% (being prepared by embodiment 1), ultrasound 5~ 10~50 DEG C of 60min, 0.1~1.0MHz of supersonic frequency, temperature are centrifuged 20~30 min through 5000 r/min, obtain clarification ginger juice;
5) after 60 DEG C of dryings of ginger slag obtained by step 3), using the ethanol water of 60 wt % as extractant, solid-liquid ratio 1:15 (g/mL), 15min is extracted at ultrasonic power 120W, 40 DEG C of ultrasonic temperature, filtered, collected filtrate, obtain ginger through rotary evaporation Extract;
6) Ginger P.E of 0.01~0.1wt% is added into the resulting clarification ginger juice of step 4), is uniformly mixed, obtains clear Clear ginger juice extracting solution.
Embodiment 5
The preparation method of ginger juice extracting solution is clarified, using the compound ginger juice clarifying agent of embodiment 2, step is the same as embodiment 4.
Embodiment 6
The preparation method of ginger juice extracting solution is clarified, using the compound ginger juice clarifying agent of embodiment 3, step is the same as embodiment 4.
Comparative example 2
The preparation method of ginger juice extracting solution is clarified, step 2 is added pectase, cellulase, glucoamylase simultaneously, adds It is constant to enter amount, digests 1h at 5.5,50 DEG C of initial p H value, other steps are the same as embodiment 4.
Comparative example 3
The preparation method of ginger juice extracting solution is clarified, ginger slag is handled without step 4) and is directly abandoned after step 3) squeeze and filter, Other steps are the same as embodiment 4.
Embodiment 4~6 and comparative example 2~3 clarify the preparation method Contrast on effect of ginger juice extracting solution, and effect is shown in Table 2:
The comparison of the preparation method effect of the different clarification ginger juice extracting solutions of table 2
Seen from table 1, different clarifying agents has larger difference to the clarifying effect of ginger juice.Comparative example 1 and single bumps Loading chitosan, the recessed soil of purifying, the recessed soil of acidification, clarifying effect are below the compound clarifier in embodiment 1-3.This is because For compound clarifier after compounding, synergistic effect is much larger than single clarifying agent.In table 2, in comparative example 2 in enzymolysis process a step Enzyme to be digested, crushing juice rate decreases compared with embodiment 4-6, this is because the enzyme method of a step cannot achieve every kind Hydrolysis result of the enzyme under its optimum condition;Comparative example 3 is then that ginger slag is not dropped directly by further effective component extracting, Flavor effective component therein does not pass through Hui Tian, causes ginger flavor deficiency in gained juice, furthermore also results in the wave of resource Take.And after the processing of embodiment 4-6 the method, the crushing juice rate of ginger juice and contained effective component have mentioning by a relatively large margin It is high.Contrast table 1, table 2 are it can be found that the processing of ginger is directly to take juice, and implement in table 2 in embodiment and comparative example in table 1 The processing of ginger takes juice to carry out enzymatic hydrolysis after dry extruding in example.Contained nutritional ingredient can be seen that process from clarification ginger juice Nutritional ingredient more horn of plenty in juice obtained by ginger after extruding enzymatic hydrolysis, the content of especially soluble solid improve 4-5 Times, the content for influencing the stable protein of subsider juice decreases, and substantially increases the stability of ginger subsider juice.

Claims (5)

1. a kind of preparation method for clarifying ginger juice extracting solution, which comprises the following steps:
1) by fresh ginger cleaning, slice, color stabilizer is added, it is dry, it is then crushed to the ginger powder of 40-60 mesh, 3 times of quality are added Water, moisten mix, through twin-screw extruder extruding, be crushed to 100-200 mesh, obtain extruding ginger powder;
2) extruding ginger powder obtained in step 1) is mixed into obtain ginger slurry according to the mass ratio of 1:20 with water, be added thereto The pectase of 0.006wt% and the cellulase of 0.004wt% digest 30~60min at 5.5,40 DEG C of initial pH value;Then The glucoamylase of 0.012wt% is added, 30min~120min is digested at 4.5,55 DEG C of initial pH value, is risen after the completion of enzymatic hydrolysis Temperature keeps the temperature 6~10min, enzyme deactivation to 80 C, and cooling obtains enzymatic hydrolysis ginger slurry;
3) the organic cellulose as filter aid agent of 1~2wt% is added into enzymatic hydrolysis ginger slurry obtained by step 2, is uniformly mixed, the squeezing of 100 mesh Ginger liquid and ginger slag are collected in filtering respectively;
4) into the ginger liquid of step 3), the compound ginger juice clarifying agent of 0.5~2wt%, ultrasonic 5-60min, through 5000 r/min is added 20~30 min are centrifuged, clarification ginger juice is obtained;
5) after 60 DEG C of dryings of ginger slag obtained by step 3), using the ethanol water of 60 wt % as extractant, solid-liquid ratio 1:15g/mL, 15min is extracted at ultrasonic power 120W, 40 DEG C of ultrasonic temperature, is filtered, filtrate is collected, obtains Ginger P.E through rotary evaporation;
6) Ginger P.E of 0.01~0.1 wt% is added into the resulting clarification ginger juice of step 4), is uniformly mixed, ginger must be clarified Juice extracting solution;
Compound ginger juice clarifying agent described in step 4), which is characterized in that mixed by the raw material of following parts by weight: recessed soil is negative Carry chitosan 25~35, sodium alginate 15~20, sodium carboxymethylcellulose 11~22, xanthan gum 13~16, collagen 5~8 and tea Polyphenol 0.5~1;
The preparation method of the compound ginger juice clarifying agent concave soil loading chitosan, step include:
A) recessed soil is calcined at 700 DEG C 4 h, after cooling, be added in the aqueous hydrochloric acid solution of 1 mol/L, recessed soil is in hydrochloric acid water Concentration is 0.5 g/mL in solution, and constant temperature stirs 4 h at 90 DEG C, is then centrifuged for, and collects solid and is washed to neutrality, is then added In the oxalic acid aqueous solution for being 10% to mass fraction, additional amount is 0.5 g/mL, and 2 h are stirred at room temperature, and stands 5 h, is centrifugated, It collects solid and is washed to neutrality, 120 DEG C of drying obtain the recessed soil of acid activation;
B) by volume it is that 4:1 is mixed by 10wt% oxalic acid aqueous solution and 1wt% acetic acid aqueous solution, solution quality 3% is then added Then solution is heated to 50 DEG C and kept the temperature completely molten to chitosan by chitosan, 50~60rpm of speed of agitator in adition process Solution, obtains faint yellow viscid chitosan sol;
C) chitosan sol is taken, is diluted with the water of 2.5 times of volumes, is heated to 50 DEG C of 1 h of stirring, room temperature is then down to, by 5 g/ The recessed soil of acid activation is added in ml concentration, stirs 5 h, and centrifugation filters, and 55 DEG C are dried under vacuum to constant weight, obtain recessed soil cursting glycan;
D) chitosan sol with step c) same volume is taken again, is diluted with the water of 1 times of volume, the recessed soil cursting in step c) is added Glycan, 50 DEG C of 6 h of stirring are stood, and remove supernatant, are added 1.0 mol/L's of 2 times of volumes of chitosan sol into residue NaOH aqueous solution, after stirring 1 h, centrifugation is washed to neutrality, filters, and 55 DEG C are dried under vacuum to constant weight, and it is negative to obtain flaxen recessed soil Carry chitosan.
2. preparation method according to claim 1, it is characterised in that: described, ginger slice size is in step 1) 0.5-1.0cm, thickness 0.2-0.3cm.
3. preparation method according to claim 1, it is characterised in that: it is described, in step 1) color stabilizer be pH4.5~ The distannous citrate of 5.5 aqueous citric acid solution, 0.02-0.10wt% ascorbic acid sodium water solution and 0.015-0.15wt% One of aqueous solution or several mixing.
4. preparation method according to claim 1, it is characterised in that: described, twin-screw extruder in step 1) Jacket temperature be 40~45 DEG C, screw speed is 100~120r/min, die orifice aperture is 5~10mm.
5. preparation method according to claim 1, it is characterised in that: described, ultrasound condition is supersonic frequency in step 4) 10-50 DEG C of rate 0.1-1.0MHz, temperature.
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