CN105994663A - Preparation method of cheddar cheeses - Google Patents

Preparation method of cheddar cheeses Download PDF

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Publication number
CN105994663A
CN105994663A CN201610403572.3A CN201610403572A CN105994663A CN 105994663 A CN105994663 A CN 105994663A CN 201610403572 A CN201610403572 A CN 201610403572A CN 105994663 A CN105994663 A CN 105994663A
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milk
cheese
curdled milk
cut
lactobacillus plantarum
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CN105994663B (en
Inventor
陈卫
刘小鸣
赵建新
殷俊玲
田丰伟
张秋香
王刚
翟齐啸
张灏
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Jiangnan University
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Jiangnan University
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23CDAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C19/00Cheese; Cheese preparations; Making thereof
    • A23C19/06Treating cheese curd after whey separation; Products obtained thereby
    • A23C19/068Particular types of cheese
    • A23C19/072Cheddar type or similar hard cheeses without eyes
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23CDAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C19/00Cheese; Cheese preparations; Making thereof
    • A23C19/02Making cheese curd
    • A23C19/032Making cheese curd characterised by the use of specific microorganisms, or enzymes of microbial origin
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23CDAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C19/00Cheese; Cheese preparations; Making thereof
    • A23C19/02Making cheese curd
    • A23C19/05Treating milk before coagulation; Separating whey from curd
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23CDAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C19/00Cheese; Cheese preparations; Making thereof
    • A23C19/06Treating cheese curd after whey separation; Products obtained thereby
    • A23C19/064Salting
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23CDAIRY PRODUCTS, e.g. MILK, BUTTER OR CHEESE; MILK OR CHEESE SUBSTITUTES; MAKING THEREOF
    • A23C2250/00Particular aspects related to cheese
    • A23C2250/10Cheese characterised by a specific form
    • 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
    • A23V2400/00Lactic or propionic acid bacteria
    • A23V2400/11Lactobacillus
    • A23V2400/169Plantarum

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  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Polymers & Plastics (AREA)
  • Microbiology (AREA)
  • Dairy Products (AREA)

Abstract

The present invention discloses cheddar cheeses with milk flavor and a preparation method thereof, and belongs to the technical field of dairy product processing. The cheddar cheeses are prepared by using raw milk as raw materials, the raw materials are subjected to pasteurization, the pasteurized raw materials are cooled, a fermentation agent is added into the cooled raw materials, lactobacillus plantarum CGMCC No. 12227 is used as a subsidiary fermentation agent, the materials are stirred evenly, the stirred mixture is put still until a pH is reduced to about 0.2, then chymosin is added to conduct curding, when the curding is finished, the curded mixture is subjected to curdled milk cutting, the cut curdled milk is heated, the heated curdled milk is stirred, whey is removed, the whey removed curdled milk is subjected to a stack fermentation, the fermented curdled milk is cut up, salt is added, the curdled milk is squeezed for molding, the molded curdled milk is vacuum packaged, the vacuum packaged curdled milk is aged, and other operations are conducted to obtain the cheddar cheeses. According to the present invention, the provided cheddar cheeses are prepared by adding the lactobacillus plantarum CGMCC No. 12227 having the ability of biacetylation synthesis as the subsidiary fermentation agent, which does not affect the various physical and chemical indicators of cheeses at the same time, and improves the smell and taste.

Description

A kind of cut the preparation method reaching cheese
Technical field
The invention belongs to dairy product processing field, be specifically related to a kind of there is milk Flavor cut the system reaching cheese Preparation Method.
Background technology
Cut and reach the cheese that cheese is world wide production maximum, be a kind of hard cheese.Presently commercially available cut that to reach cheese many Present the flavor characteristics such as sulfur taste, nut taste, tart flavour, and Jiang Lihong (Jiang Lihong, Zhou Ying, Hong Qing, etc. city Sell old cutting and reach cheese flavor feature and consumer's preference degree research [J]. food industry science and technology, 2014 (23): 275-281) et al. research finds that consumer of China is more likely to milk fragrance for cutting the preference degree reaching cheese, and sulfur Taste, bitterness are significantly cut and are reached cheese not by China's consumers welcomed.Therefore, improve to cut and reach cheese flavor and have Important meaning.
Correlational study finds, lactobacillus can add in cheese as adjunct culture, to improve cheese flavor, And Singh (Singh T, Drake M, Cadwallader K.Flavor of cheddar cheese:A chemical and sensory perspective[J].Comprehensive Reviews in Food Science and Food Safety, 2003,2 (4): 166-189) et al. research points out that flavor substance biacetyl can give cheese milk fragrant breeze Taste, but less for being applicable to cut the research of the high yield biacetyl adjunct culture reaching cheese.Accordingly, it would be desirable to Cutting of high yield biacetyl of screening reaches cheese adjunct culture, and exploitation highly seasoned the cutting of milk reaches cheese and will be more suitable for The consumer of China.Add which kind of lactic acid bacteria and how to apply be able to maintain that normal fermentation while improve wind Taste is problem demanding prompt solution.
Summary of the invention
The problems referred to above existed for prior art, the present inventor, on the basis of summing up prior art, passes through Lot of experiments, it is provided that a kind of cut the preparation method reaching cheese, with Lactobacillus plantarum CGMCC No.12227 As adjunct culture, effectively improve and cut the local flavor reaching cheese.
The method reaching cheese is cut in preparation of the present invention, is raw milk to be cooled down after pasteurize, adds Leaven, adjunct culture, stir, and stands and reduces about 0.2 to pH, then adds Chymosin and enter Row curdled milk, after curdled milk completes, carry out cut curdled milk, heat and get rid of milk surum, heap make, chopping and salt adding, Squeezing molding, vacuum packaging operation, cheese is placed under certain condition maturation.
Described leaven, is to be activated in degreasing milk medium by leaven bacterial strain, according to adding of 2% (v/v) Dosage adds in the raw milk after sterilizing.
Described adjunct culture, is that the Lactobacillus plantarum CGMCC No.12227 bacterium solution after activating is according to body Long-pending ratio adds in raw milk for 2%-5%, or utilizes direct putting type work prepared by CGMCC No.12227 Make leaven to add in raw milk according to the weight ratio of 0.1%.
Described direct putting type working stock culture is to adjust cell concentration to 10 by after the Lactobacillus plantarum washing of activation9 More than cfu/mL, obtains after the most freeze-dried process.
The concrete operation step of said method is as follows:
(1) pretreatment of raw milk: raw milk after pasteurize 30min, is quickly cooled down at 63 DEG C-68 DEG C To 32 DEG C;
(2) interpolation of leaven: leaven bacterial strain is 30 DEG C of activation in the degreasing milk medium of sterilized 10% 10-12h, adds in raw milk according to the addition of 2% (v/v), stirs;
(3) interpolation of adjunct culture: Lactobacillus plantarum CGMCC No.12227 sterilized 10% defat In breast culture medium, 30 DEG C of activation 10-12h, add in raw milk according to the addition of 2%-5% (v/v), Stir, stand to pH reduction about 0.2;
(4) interpolation of Chymosin: add Chymosin, stirring according to the addition of 0.001%-0.002% (wt/wt) Uniformly, curdled milk a period of time;
(5) cutting curdled milk, heat temperature raising and eliminating milk surum: after curdled milk completes, can cut, then delay Slow stirring, after being warming up to 39 DEG C, is incubated 30min-45min, and healing heel row is except milk surum;
(6) heap is made: the grumeleuse of formation cuts into 4-6 block, stands, every 15min turn-over and get rid of milk surum, Being stacked by two clotting blocks after overturning three times, stand, every 10min-15min turn-over also gets rid of milk surum.The row of mensuration The acidity of the milk surum removed, when acidity reaches 55.56 ° of T-66.67 ° of T, heap is made and is terminated;
(7) chopping and salt adding: after cheesy masses is cut into little granule, uses grumeleuse salt adding method, with the weight of cheese Meter adds the Sal of 2.2%-2.7% and is stirred continuously;
(8) squeezing molding: cheese is put in mould, squeeze moulding 15-18h;
(9) vacuum packaging is with ripe: takes out cheese, is vacuum-packed, is placed under 4 DEG C of-10 DEG C of environment maturation.
In one embodiment of the invention, leaven is RA 21LYO, from Shanghai D anisco;
In one embodiment of the invention, Chymosin is MARZYME 150, from Shanghai D anisco;
The Lactobacillus plantarum (Lactobacillus plantarum) that the present invention uses, is the fermentation from Xinjiang of China In food, screening obtains, and is preserved in Chinese microorganism strain preservation conservator on March 21st, 2016 Meeting common micro-organisms center, preserving number is CGMCC No.12227, and preservation address is north, Chaoyang District, Beijing City Occasion West Road 1 institute 3, Institute of Microorganism, Academia Sinica.
This Lactobacillus plantarum (Lactobacillus plantarum) CGMCC No.12227 has characteristics that
(1) under 2%-6% salinity, upgrowth situation is good;
(2) under acid (pH 4.0~6.0) environment, upgrowth situation is good;
(3) the aqtocytolysis degree of bacterial strain is higher, reaches 20.18 ± 0.14% at 24h;
(4) acid producing ability is not strong, and after 18h, pH is changed to 0.97 ± 0.01;
(5) producing biacetyl ability strong, 24h reaches 10.69 ± 0.071mg/L;
(6) intracellular biacetyl capacity of decomposition is weak, and alpha-acetolactate decarboxylase is that 0.23 ± 0.00 μm ol second is even Relation by marriage min-1·g-1, diacetyl reductase work is 0.10 ± 0.01 μm ol NADH min-1·g-1, acetoin reductase Work is 0.02 ± 0.01 μm ol NADH min-1·g-1
The invention has the beneficial effects as follows:
1, the present invention is by interpolation Lactobacillus plantarum CGMCC No.12227 as adjunct culture, does not has shadow Ring and cut the normal preparation process reaching cheese, finally while not affecting the physical and chemical index of cheese, improve and cut Reach the local flavor of cheese, enhance the milk fragrance of product.Additionally, with the cheese group phase without adjunct culture Ratio, the present invention also effectively raises the speed of proteolysis, and acceleration is cut and reached cheese maturation formation local flavor.
2, the inventive method safety and Health: the Lactobacillus plantarum CGMCC No.12227 of application in the present invention Being the safe bacterial strain that can be used for food, the method for the present invention does not add other chemical substances, safety and Health.
Accompanying drawing explanation
Fig. 1 represents that what the embodiment of the present invention 2 made cuts the diacetyl content reaching cheese;
Fig. 2 represents that what the embodiment of the present invention 2 made cuts the abnormal smells from the patient subjective appreciation reaching cheese;
Fig. 3 represents that what the embodiment of the present invention 2 made cuts the flavour subjective appreciation reaching cheese;
Fig. 4 represents that what the embodiment of the present invention 2 made cuts pH 4.6 soluble nitrogen content reaching cheese;
Fig. 5 represents that what the embodiment of the present invention 2 made cuts 12% trichloroacetic acid-soluble nitrogen reaching cheese;
Fig. 6 represents that what the embodiment of the present invention 2 made cuts the full matter structure parameter reaching cheese.
Detailed description of the invention
The present invention is will be better understood that by following embodiment.
Embodiment 1: add cutting of Lactobacillus plantarum CGMCC No.12227 and reach cheese
1, the preparation of Lactobacillus plantarum CGMCC No.12227 direct putting type working stock culture.
Lactobacillus plantarum CGMCC No.12227 is inoculated into the MRS of sterilizing according to the inoculum concentration of 2% (v/v) In fluid medium, cultivate 18-24h at 37 DEG C, treat that Lactobacillus plantarum CGMCC No.12227 viable count reaches To 108Centrifugal treating at more than cfu/mL, 4000rpm, 10min, 4 DEG C, and delay with the PBS of pH7.0 Rush liquid rinse precipitation 2 times after, add freeze drying protectant, regulation cell concentration to 109Cfu/mL, mixes laggard Row vacuum lyophilization processes, and lyophilizing gained is described Lactobacillus plantarum CGMCC No.12227 and delivers directly Formula working stock culture.
2, the making of cheese is reached containing cutting of Lactobacillus plantarum CGMCC No.12227 direct putting type working stock culture
Cut that to reach the production technology of cheese as follows: raw milk is cooled to 32 DEG C after pasteurize, adds Leaven and Lactobacillus plantarum CGMCC No.12227 direct putting type working stock culture, stir, and stands extremely PH reduces about 0.2, then adds rennet curdling a period of time, after curdled milk completes, by curd cutting Become fritter, be warming up to 39 DEG C and be incubated 45min heel row except milk surum, grumeleuse carry out again heap wine, chopping and salt adding, Squeezing molding, vacuum packaging operation, cheese is placed in constant temperature and humidity incubator maturation.Concrete operations are as follows: (1) pretreatment of raw milk
Standardization raw milk after pasteurize 30min, is cooled fast to 32 DEG C at 65 DEG C;
(2) interpolation of leaven
Leaven bacterial strain is 30 DEG C of activation 12h in the degreasing milk medium of sterilized 10%, according to 2% (v/v) Addition add in raw milk, stir;
(3) interpolation of adjunct culture
The throw type leaven that step 1 is prepared gained adds raw milk to by the addition of 0.1% (wt/wt) In, stir, stand to pH reduction about 0.2;
(4) interpolation of Chymosin
Add Chymosin according to the addition of 0.001% (wt/wt), stir, curdled milk a period of time;
(5) cutting curdled milk, heat temperature raising and eliminating milk surum
After curdled milk completes, can cut, then be slowly stirred, after being warming up to 39 DEG C, be incubated 40min, Healing heel row is except milk surum;
(6) heap is made
The grumeleuse of formation is cut into 5 pieces, stands, every 15min turn-over and get rid of milk surum, overturn three times After two clotting blocks are stacked, stand, every 15min turn-over also gets rid of milk surum.Measure the acidity of the milk surum got rid of, When acidity reaches 55.56 ° of T, heap is made and is terminated;
(7) chopping and salt adding
After cheesy masses is cut into little granule, use grumeleuse salt adding method, in terms of the weight of cheese, add 2.2% Sal is also stirred continuously;
(8) squeezing molding
Cheese is put in mould, squeeze moulding 18h;
(9) vacuum packaging is with ripe
Take out cheese, be vacuum-packed, packaged cheese is placed under 8 DEG C of environment maturation.
Embodiment 2: add cutting of Lactobacillus plantarum CGMCC No.12227 and reach cheese
1, the activation of Lactobacillus plantarum CGMCC No.12227
MRS flat board purifies and separates: sterile working inoculating loop picking Lactobacillus plantarum CGMCC No.12227, The flat lining out of MRS in sterilizing, after flat board is placed in 37 DEG C of incubators cultivation 48h, picking list bacterium Drop into row microscopy, it is achieved the purifies and separates of bacterial strain.
Former bacterial strain activates: take out the cold preservation bacterial strain being stored in-80 DEG C of refrigerators, is placed in ice bath to bacterium solution thawing, Take 100 μ L bacterium solution to be inoculated in the MRS fluid medium of 5mL sterilizing, after cultivating 18h at 37 DEG C, Ruling, cultivate 48h in solid MRS culture medium at 37 DEG C, picking individual colonies is inoculated into sterilizing In MRS fluid medium, after activation culture three generations, carry out subsequent experimental.
MRS fluid medium forms: 20g glucose, 10g Carnis Bovis seu Bubali cream, 10g peptone, 5g yeast carry Take thing, 5g sodium acetate, 2g dipotassium hydrogen phosphate, 2g citric acid diamidogen, 1g Tween 80,0.1g magnesium sulfate, 0.05g manganese sulfate and 1000mL distilled water, pH 6.2-6.4, this culture medium is sterilizing 20min at 115 DEG C. MRS solid medium need to add 15-20g agar strip again.
Bacterial strain activation obtained is inoculated into 10% degreasing milk medium of sterilizing by the addition of 2% (v/v) After middle cultivation 12h, it is standby that taking-up is placed in 4 DEG C of refrigerators.
2, the making of cheese is reached containing cutting of Lactobacillus plantarum CGMCC No.12227
(1) pretreatment of raw milk
Raw milk after pasteurize 30min, is cooled fast to 32 DEG C at 65 DEG C;
(2) interpolation of leaven
Leaven bacterial strain is 30 DEG C of activation 12h in the degreasing milk medium of sterilized 10%, according to 2% (v/v) Addition add in raw milk, stir;
(3) interpolation of adjunct culture
Adjunct culture bacterial strain step 1 obtained adds in raw milk by the addition of 2% (v/v), stirs Mix uniformly, stand to pH reduction about 0.2;
(4) interpolation of Chymosin
Add Chymosin according to the addition of 0.002% (wt/wt), stir, curdled milk a period of time;
(5) cutting curdled milk, heat temperature raising and eliminating milk surum
After curdled milk completes, can cut, then be slowly stirred, after being warming up to 39 DEG C, be incubated 45min, Healing heel row is except milk surum;
(6) heap is made
The grumeleuse of formation is cut into 6 pieces, stands, every 15min turn-over and get rid of milk surum, overturn three times After two clotting blocks are stacked, stand, every 15min turn-over also gets rid of milk surum.Measure the acidity of the milk surum got rid of, When acidity reaches 66.67 ° of T, heap is made and is terminated;
(7) chopping and salt adding
After cheesy masses is cut into little granule, use grumeleuse salt adding method, in terms of the weight of cheese, add 2.2% Sal is also stirred continuously;
(8) squeezing molding
Cheese is put in mould, squeeze moulding 18h;
(9) vacuum packaging is with ripe
Take out cheese, be vacuum-packed, be placed under 8 DEG C of environment maturation.
Embodiment 3: add cutting of Lactobacillus plantarum CGMCC No.12227 and reach cheese
(1) pretreatment of raw milk
Standardization raw milk after pasteurize 30min, is cooled fast to 32 DEG C at 68 DEG C
(2) interpolation of leaven
Leaven bacterial strain is 30 DEG C of activation 12h in the degreasing milk medium of sterilized 10%, according to 2% (v/v) Addition add in raw milk, stir;
(3) interpolation of adjunct culture
By Lactobacillus plantarum CGMCC No.12227 30 DEG C of work in the degreasing milk medium of sterilized 10% Change 12h, add in raw milk according to the addition of 3% (v/v), stir, stand to pH reduction About 0.2;
(4) interpolation of Chymosin
Add Chymosin according to the addition of 0.002% (wt/wt), stir, curdled milk a period of time;
(5) cutting curdled milk, heat temperature raising and eliminating milk surum
After curdled milk completes, can cut, then be slowly stirred, after being warming up to 39 DEG C, be incubated 30min, Healing heel row is except milk surum;
(6) heap is made
The grumeleuse of formation is cut into 4 pieces, stands, every 15min turn-over and get rid of milk surum, overturn three times After two clotting blocks are stacked, stand, every 15min turn-over also gets rid of milk surum.Measure the acidity of the milk surum got rid of, When acidity reaches 55.56 ° of T, heap is made and is terminated;
(7) chopping and salt adding
After cheesy masses is cut into little granule, use grumeleuse salt adding method, in terms of the weight of cheese, add 2.5% Sal is also stirred continuously;
(8) squeezing molding
Cheese is put in mould, squeeze moulding 15h;
(9) vacuum packaging is with ripe
Take out cheese, be vacuum-packed, be placed in 4 DEG C of constant temperature and humidity incubators maturation.
Embodiment 4: add cutting of Lactobacillus plantarum CGMCC No.12227 and reach cheese
(1) pretreatment of raw milk
Standardization raw milk after pasteurize 30min, is cooled fast to 32 DEG C at 63 DEG C
(2) interpolation of leaven
Leaven bacterial strain is 30 DEG C of activation 10h in the degreasing milk medium of sterilized 10%, according to 2% (v/v) Addition add in raw milk, stir;
(3) interpolation of adjunct culture
By Lactobacillus plantarum CGMCC No.12227 30 DEG C of work in the degreasing milk medium of sterilized 10% Change 10h, add in raw milk according to the addition of 5% (v/v), stir, stand to pH reduction About 0.2;
(4) interpolation of Chymosin
Add Chymosin according to the addition of 0.002% (wt/wt), stir, curdled milk a period of time;
(5) cutting curdled milk, heat temperature raising and eliminating milk surum
After curdled milk completes, can cut, then be slowly stirred, after being warming up to 39 DEG C, be incubated 30min, Healing heel row is except milk surum;
(6) heap is made
The grumeleuse of formation is cut into 5 pieces, stands, every 15min turn-over and get rid of milk surum, overturn three times After two clotting blocks are stacked, stand, every 10min turn-over also gets rid of milk surum.Measure the acidity of the milk surum got rid of, When acidity reaches 60.67 ° of T, heap is made and is terminated;
(7) chopping and salt adding
After cheesy masses is cut into little granule, use grumeleuse salt adding method, in terms of the weight of cheese, add 2.7% Sal is also stirred continuously;
(8) squeezing molding
Cheese is put in mould, squeeze moulding 18h;
(9) vacuum packaging is with ripe
Take out cheese, be vacuum-packed, be placed in 10 DEG C of constant temperature and humidity incubators maturation.
To embodiment 1-4 and matched group (matched group in addition to without adjunct culture, other steps and embodiment 2 is consistent) cutting of obtaining reaches the basic physical and chemical index of cheese and subjective appreciation compares.
Wherein subjective appreciation method is as shown in table 1, table 2.
Basic physical and chemical index assay method is as follows: uses baking oven atmosphere pressure desiccation to measure and cuts the moisture reaching in cheese Content;The determination of fat uses GB 5413.3-2010;Protein content determination uses Kjeldahl's method (GB 5009.5-2010);Salt content measures and uses SN/T 0800.11-1999;PH value reaches milk by pH meter to cutting Cheese sample surfaces and inside are measured respectively;Often group measuring 3 times.
Table 1 abnormal smells from the patient subjective appreciation method
Table 2 flavour subjective appreciation method
Diacetyl content assay method:
Utilize gas chromatograph-mass spectrometer (GC-MS) to measure and cut the diacetyl content reaching in cheese.Cheese sample is smashed After becoming little granule, accurately take in the extraction bottle that 3g loads 15mL, add 1 μ L internal standard material enanthic acid first Ester (0.27mg/mL), uses solid phase micro-extraction method to extract the flavor components of cheese.Automatic sampling apparatus will Extracting head CAR/PDMS (85 μm) is inserted in extraction flask and is exposed in the air on sample top, in 60 DEG C Extract 40 minutes.
Gas spectral condition is: HP Innowax capillary column;Column length and bore select: 30m × 0.25mm × 0.25 Mm, inlet temperature is 250 DEG C, and split ratio is 5, and column flow rate is 1mL/min, with helium as carrier gas;Journey Sequence heats up, and initial temperature is 40 DEG C, is warming up to 230 DEG C with 5 DEG C/min speed, keeps 15min.
Mass Spectrometry Conditions is: Ionization mode is EI, and emission current is 200 μ A, and emitted energy is 70eV, Ion source temperature is 200 DEG C, and interface temperature is 280 DEG C, and mass-to-charge ratio is 40-650.The retrieval of each material and NIST Mate with Varian2 standard spectrum storehouse, its content of material according to its peak area and internal standard substance mass peak area and Internal standard material concentration calculates, and is expressed as μ g/g cheese.
Matched group with the diacetyl content of embodiment 2 as it is shown in figure 1, experimental data to show that the present invention uses attached Belong to leaven and can be effectively increased the content of biacetyl in product;The abnormal smells from the patient of matched group and embodiment 2 and flavour Results of sensory evaluation as shown in Figure 2 and Figure 3, result shows that the adjunct culture that the present invention uses can improve Cutting the milk Flavor reaching cheese, cut other local flavors reaching cheese simultaneously substantially without impact, this can also illustrate Add attached additive and conventional lactococcus lactis fermentation will not be brought adverse effect, and pass through metabolite Synergism, effectively improve product special flavour;Matched group and the basic physical and chemical index such as table 3 of embodiment 2 Shown in, result shows to add adjunct culture and cuts routine and reach the basic physical and chemical index of cheese and will not produce significantly Impact.
Table 3 blank group and the basic physical and chemical index of embodiment 2
Additionally, cutting of also measured wering that embodiment 1-4 obtains reaches the Proteolytic enzyme situation of cheese and full matter structure parameter.
Proteolytic enzyme level determinations:
(1) mensuration of pH 4.6 soluble nitrogen: will cut and accurately weigh 0.75g in centrifuge tube after reaching cheese grinding In, add the acetate buffer solution of 25mL pH 4.6, stir, be centrifuged 20min in 4000rpm, The most accurately measure 5mL supernatant and carry out kjeldahl determination mensuration, and reach the percentage ratio table of cheese total nitrogen to account for cut Show.
The mensuration of (2) 12% trichloroacetic acid soluble nitrogens: will cut reach cheese grind after accurately weigh 1.50g in In centrifuge tube, add the solution of trichloroacetic acid of 25mL volume by volume concentration 12%, stir, in 4000rpm Centrifugal 20min, more accurately measure 5mL supernatant and carry out kjeldahl determination mensuration, and reach cheese total nitrogen to account for cut The percentage ratio of amount represents.
Full texture testing: will cut and reach cheese and cut into the fritter of 1cm × 1cm × 1cm, and carry out TPA mensuration. Parameter is arranged: using column type probe P/35, carry out two second compression, machine direction is perpendicular to compact disk.Survey Probe fall off rate 5mm/s before amount;Test rate 1mm/s;Probe backhaul speed 1mm/s after test;Touch Have an effect 0.2N;Depression distance 10mm;Deformation quantity is 50%, and each sample is repeated 5 times.
The Proteolytic enzyme level determinations result of matched group and embodiment 2 as shown in Figure 4, Figure 5, full texture testing Result is as shown in Figure 6.
Experimental data shows, cutting of obtaining in embodiment 1-4 reaches cheese, at subjective appreciation, physical and chemical index, egg On white hydrolysis degree and full texture testing result basically identical.
Embodiment 5: preparation technology reaches the impact of cheese product to cutting
(1) impact of Lactobacillus plantarum: select Lactobacillus plantarum CCFM 309 and the plant lactic acid of laboratory Bacterium CCFM 44 (from traditional fermented food the Lactobacillus plantarum CCFM 309 of isolated, Lactococcus lactis CCFM 44) replace the Lactobacillus plantarum CGMCC No.12227 in embodiment 2, Other steps are constant.
Test result indicate that, that adds that Lactobacillus plantarum CCFM 309 prepares gained cuts the milk fragrant breeze reaching cheese Taste is not effectively improved.And it is suitable with CGMCC No.12227 bacterial strain to produce biacetyl amount under cellar culture CCFM 44 bacterial strain, add CCFM 44 bacterial strain and prepare cutting of gained and reach the milk Flavor of cheese and obtain one Fixed improvement, but compared with CGMCC No.12227 bacterial strain, milk flavor intensity is more weak, and this is probably Owing to the biacetyl metabolic enzyme vigor difference of bacterial strain causes, the biacetyl metabolism of CGMCC No.12227 bacterial strain Enzyme activity is relatively low, and therefore biacetyl metabolism is slow, effectively improves the local flavor of product.
(2) impact of adjunct culture inoculum concentration: the adjunct culture bacterium solution inoculum concentration in embodiment 2 is divided An 1%, 8% (v/v) not inoculate, other steps are constant.Test result indicate that, inoculum concentration is 1% (v/v) Time, to prepare gained and cut and reach cheese product local flavor and can not be effectively improved, this is likely due to inoculum concentration very little So that Lactobacillus plantarum can not become dominant microflora and play a role;When inoculum concentration is 8% (v/v), prepare gained Cut and reach that the tart flavour of cheese product is overweight and quality is really up to the mark, have a strong impact on local flavor and the matter structure of product, this be by Cause producing that hyper acid causes in inoculum concentration is the highest.
Although the present invention is open as above with preferred embodiment, but it is not limited to the present invention, any ripe Know the people of this technology, without departing from the spirit and scope of the present invention, all can do various changes and modification, Therefore protection scope of the present invention should be with being as the criterion that claims are defined.

Claims (7)

1. cut the preparation method reaching cheese for one kind, it is characterised in that described method is with lactogenesis as raw material, through pasteurize Rear cooling, adds leaven, and Lactobacillus plantarum CGMCC No.12227 is as adjunct culture in addition, stirs Mix uniformly, stand and reduce about 0.2 to pH, then add Chymosin and carry out curdled milk, after curdled milk completes, Carry out cut curdled milk, heat and get rid of milk surum, heap make, chopping with salt adding, squeeze molding, vacuum packaging, Maturation, i.e. obtains cutting reaching cheese.
Method the most according to claim 1, it is characterised in that described Lactobacillus plantarum CGMCC No.12227 has following character:
(1) there is acid-fast ability, well-grown in the environment of pH is 4.0~6.0;
(2) there is salt resistance ability, well-grown under 2%-6% salinity;
(3) aqtocytolysis degree is higher, reaches about 20% during 24h;
(4) bacterial strain acid producing ability is not strong, and after 24h, pH is changed to about 0.97;
(5) bacterial strain produces biacetyl ability height, reaches about 10.6mg/L;
(6) intracellular biacetyl capacity of decomposition is weak, and alpha-acetolactate decarboxylase is 0.23 ± 0.00 μm ol acetoin ·min-1·g-1, diacetyl reductase work is 0.10 ± 0.01 μm ol NADH min-1·g-1, acetoin reductase is lived It is 0.02 ± 0.01 μm ol NADH min-1·g-1
Method the most according to claim 1 and 2, it is characterised in that described leaven, is by leaven bacterial strain Degreasing milk medium activates, adds in the raw milk after sterilizing according to the addition that volume ratio is 2%.
Method the most according to claim 3, it is characterised in that described adjunct culture, is planting after activating Thing lactobacillus CGMCC No.12227 bacterium solution is that 2%-5% adds in raw milk according to volume ratio.
Method the most according to claim 3, it is characterised in that described adjunct culture, is to utilize plant breast bar Direct putting type working stock culture prepared by bacterium CGMCC No.12227 adds raw milk to according to the weight ratio of 0.1% In.
Method the most according to claim 5, it is characterised in that described direct putting type working stock culture is by activation Cell concentration is adjusted to 10 after Lactobacillus plantarum CGMCC No.12227 washing9More than cfu/mL, then warp Lyophilization obtains after processing.
7. according to claim 4 or the method for 5 or 6, it is characterised in that described method specifically includes following steps:
(1) pretreatment of raw milk: raw milk after pasteurize 30min, is quickly cooled down at 63 DEG C-68 DEG C To 32 DEG C;
(2) interpolation of leaven: leaven bacterial strain is 30 DEG C of activation in the degreasing milk medium of sterilized 10% 10-12h, adds in raw milk according to the addition that volume ratio is 2%, stirs;
(3) interpolation of adjunct culture: add the Lactobacillus plantarum CGMCC of the activation that volume ratio is 2%-5% No.12227 bacterium solution, or the CGMCC No.12227 direct putting type working stock culture that weight ratio is 0.1%, stir Mix uniformly, stand to pH reduction about 0.2;
(4) interpolation of Chymosin: add the Chymosin of 0.001%-0.002% in terms of the weight of raw milk, stirring is all Even, curdled milk a period of time;
(5) cutting curdled milk, heated and stirred and eliminating milk surum: after curdled milk completes, can cut, then delay Slow stirring, after being warming up to 39 DEG C, is incubated 30min-45min, and healing heel row is except milk surum;
(6) heap is made: the grumeleuse of formation cuts into 4-6 block, stands, every 15min turn-over and get rid of milk surum, Being stacked by two clotting blocks after overturning three times, stand, every 10min-15min turn-over also gets rid of milk surum, the row of mensuration The acidity of the milk surum removed, when acidity reaches 55.56 ° of T-66.67 ° of T, heap is made and is terminated;
(7) chopping and salt adding: after cheesy masses is cut into little granule, uses grumeleuse salt adding method, with the weight of cheese Meter adds the Sal of 2.2%-2.7% and is stirred continuously;
(8) squeezing molding: cheese is put in mould, squeeze moulding 15-18h;
(9) vacuum packaging is with ripe: takes out cheese, is vacuum-packed, is placed under 4 DEG C of-10 DEG C of environment maturation.
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CN108077442A (en) * 2017-12-25 2018-05-29 光明乳业股份有限公司 A kind of natural cheeses and preparation method thereof
CN108384727A (en) * 2018-01-31 2018-08-10 石河子大学 One plant of aroma-producing yeast bacteria strain and its application in preparing Xinjiang tradition cheese
CN108576239A (en) * 2018-04-27 2018-09-28 宁波大学 A kind of production method cut up to cheese
CN109169944A (en) * 2018-10-30 2019-01-11 妙可蓝多(天津)食品科技有限公司 A kind of low fat high calcium cheese and its production technology
CN109169945A (en) * 2018-10-30 2019-01-11 妙可蓝多(天津)食品科技有限公司 A kind of cheese and production technology with excellent flavor and physical property
CN109997921A (en) * 2019-03-29 2019-07-12 石家庄君乐宝乳业有限公司 Fresh cheese food and preparation method thereof
CN111387294A (en) * 2020-03-30 2020-07-10 北京农学院 Liquor-flavored cheese and preparation method thereof
CN113142309A (en) * 2021-03-18 2021-07-23 西藏自治区农牧科学院农产品开发与食品科学研究所 Snack type reproduced cheese and preparation method thereof
CN115152845A (en) * 2021-07-29 2022-10-11 王天明 Natural dairy product endogenous stabilizer and application thereof
CN115736025A (en) * 2022-10-28 2023-03-07 江苏卫岗乳品研究院有限公司 High-quality cheese based on reconstituted milk fermentation technology and preparation method thereof
CN115868550A (en) * 2021-09-28 2023-03-31 内蒙古蒙牛乳业(集团)股份有限公司 Extra-hard cheese capable of being stored at normal temperature and preparation method thereof
CN115868549A (en) * 2022-12-28 2023-03-31 光明乳业股份有限公司 Probiotic fresh cheese and preparation method thereof
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CN108077442A (en) * 2017-12-25 2018-05-29 光明乳业股份有限公司 A kind of natural cheeses and preparation method thereof
CN108384727A (en) * 2018-01-31 2018-08-10 石河子大学 One plant of aroma-producing yeast bacteria strain and its application in preparing Xinjiang tradition cheese
CN108576239A (en) * 2018-04-27 2018-09-28 宁波大学 A kind of production method cut up to cheese
CN109169944A (en) * 2018-10-30 2019-01-11 妙可蓝多(天津)食品科技有限公司 A kind of low fat high calcium cheese and its production technology
CN109169945A (en) * 2018-10-30 2019-01-11 妙可蓝多(天津)食品科技有限公司 A kind of cheese and production technology with excellent flavor and physical property
CN109997921A (en) * 2019-03-29 2019-07-12 石家庄君乐宝乳业有限公司 Fresh cheese food and preparation method thereof
CN111387294A (en) * 2020-03-30 2020-07-10 北京农学院 Liquor-flavored cheese and preparation method thereof
CN113142309A (en) * 2021-03-18 2021-07-23 西藏自治区农牧科学院农产品开发与食品科学研究所 Snack type reproduced cheese and preparation method thereof
CN115152845A (en) * 2021-07-29 2022-10-11 王天明 Natural dairy product endogenous stabilizer and application thereof
CN115152845B (en) * 2021-07-29 2023-09-26 王天明 Natural dairy product endogenous stabilizer and application thereof
CN115868550A (en) * 2021-09-28 2023-03-31 内蒙古蒙牛乳业(集团)股份有限公司 Extra-hard cheese capable of being stored at normal temperature and preparation method thereof
CN115868548A (en) * 2021-09-28 2023-03-31 内蒙古蒙牛乳业(集团)股份有限公司 Extra-hard cheese capable of being stored at normal temperature and preparation method thereof
CN115868548B (en) * 2021-09-28 2023-12-08 内蒙古蒙牛乳业(集团)股份有限公司 Super-hard cheese capable of being stored at normal temperature and preparation method thereof
CN115868550B (en) * 2021-09-28 2023-12-08 内蒙古蒙牛乳业(集团)股份有限公司 Super-hard cheese capable of being stored at normal temperature and preparation method thereof
CN115736025A (en) * 2022-10-28 2023-03-07 江苏卫岗乳品研究院有限公司 High-quality cheese based on reconstituted milk fermentation technology and preparation method thereof
CN115868549A (en) * 2022-12-28 2023-03-31 光明乳业股份有限公司 Probiotic fresh cheese and preparation method thereof

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