CN113100293A - Apple-flavored fermented milk containing natural green apple essence and preparation method thereof - Google Patents

Apple-flavored fermented milk containing natural green apple essence and preparation method thereof Download PDF

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Publication number
CN113100293A
CN113100293A CN202110388874.9A CN202110388874A CN113100293A CN 113100293 A CN113100293 A CN 113100293A CN 202110388874 A CN202110388874 A CN 202110388874A CN 113100293 A CN113100293 A CN 113100293A
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apple
natural green
fermented milk
green apple
flavored fermented
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张栋
冯丽莉
王世杰
袁庆彬
魏立华
薛玉玲
荀一萍
刘尧尧
封肖颖
杨婉秋
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Shijiazhuang Junlebao Dairy Co Ltd
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Shijiazhuang Junlebao Dairy Co Ltd
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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
    • A23C9/00Milk preparations; Milk powder or milk powder preparations
    • A23C9/12Fermented milk preparations; Treatment using microorganisms or enzymes
    • A23C9/13Fermented milk preparations; Treatment using microorganisms or enzymes using additives
    • A23C9/1307Milk products or derivatives; Fruit or vegetable juices; Sugars, sugar alcohols, sweeteners; Oligosaccharides; Organic acids or salts thereof or acidifying agents; Flavours, dyes or pigments; Inert or aerosol gases; Carbonation methods
    • 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
    • A23V2400/123Bulgaricus
    • 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
    • A23V2400/21Streptococcus, lactococcus
    • A23V2400/249Thermophilus
    • 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
    • A23V2400/51Bifidobacterium
    • A23V2400/515Animalis

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  • Microbiology (AREA)
  • Chemical & Material Sciences (AREA)
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Abstract

The invention belongs to the technical field of food, and discloses apple-flavored fermented milk containing natural green apple essence and a preparation method thereof, wherein the apple-flavored fermented milk is prepared by uniformly mixing cow milk, a sweetening agent, streptococcus thermophilus JMCC16 bacterial powder and Lactobacillus delbrueckii subsp.bulgaricus JMCC0018 bacterial powder, fermenting, cooling, adding natural green apple juice, natural green apple essence and animal bifidobacterium lactis i797 bacterial powder, uniformly mixing and post-ripening; according to the invention, probiotics with weak decomposition capacity on apple-flavor organic substances are screened out, and the purpose of reducing the change of the apple flavor of the apple-flavor fermented milk in the storage process is realized through specific combination. The apple-flavored fermented milk provided by the invention has good taste, and has no peculiar smell after long-term storage.

Description

Apple-flavored fermented milk containing natural green apple essence and preparation method thereof
Technical Field
The invention belongs to the technical field of food, and relates to flavored fermented milk and a preparation method thereof, in particular to apple flavored fermented milk containing natural green apple essence and a preparation method thereof.
Background
At present, the flavored fermented milk in the market is various, and especially the fruit flavored fermented milk containing probiotics is deeply loved by consumers at all ages at home and abroad due to sufficient nutrition, rich viable bacteria and unique flavor, so that the flavored fermented milk has a wider market.
Compared with flavored fermented milk such as strawberries, pineapples and nectarines of different brands and types, the apple flavored fermented milk is rare for two reasons: on the one hand, the apple flavor is usually realized by adding synthetic chemical additives, natural green apple juice or natural green apple essence, however, the synthetic chemical additives have single fruit flavor and have larger difference with the real apple flavor, and the purchasing desire of consumers for such products is also obviously lower than that of products added with the natural green apple juice or the natural green apple essence. On the other hand, the production process of the apple-flavored fermented milk product added with the natural green apple juice or the natural green apple essence still has some technical difficulties, especially the active lactic acid bacteria and other probiotics in the flavored fermented milk have the digestion and decomposition capacity on organic substances in the natural green apple juice or the natural green apple essence, the apple aroma is weakened along with the decomposition of the organic substances, and the rotten apple taste is generated. Therefore, the apple flavor of the fermented milk is easy to change in the storage process, and peculiar smell is easy to appear to a certain degree, so that the eating experience of consumers is influenced.
Disclosure of Invention
The invention aims to provide the apple-flavored fermented milk containing the natural green apple essence, so as to solve the problem that organic substances in natural green apple juice or natural green apple essence are digested and decomposed by probiotics in the apple-flavored fermented milk;
the invention also aims to provide a preparation method of the apple-flavored fermented milk containing the natural green apple essence.
In order to achieve the purpose, the invention adopts the technical scheme that:
the apple-flavored fermented milk containing natural green apple essence comprises the following active ingredients in parts by weight: 1800 portions of cow milk, 2200 portions of sweetening agent, 0.14 to 0.18 portion of leavening agent bacterial powder, 0.1 to 1 portion of bifidobacterium animalis subspecies lactis i797 bacterial powder, 0.2 to 0.4 portion of natural green apple juice and 0.001 to 0.1 portion of natural green apple essence;
the viable count of the starter bacteria powder is 1 × 109-1×1011CFU/g, wherein the ratio of viable count of streptococcus thermophilus JMCC16 and Lactobacillus delbrueckii subsp.bulgaricus JMCC0018 is 1000:1-10000: 1;
the viable count of bifidobacterium animalis subsp lactis i797 in the bifidobacterium animalis subsp lactis i797 powder is 3 multiplied by 109-6×1011CFU/g。
The preparation method of the lactobacillus bifidus strain JMCC16 or the lactobacillus delbrueckii subsp bulgaricus JMCC0018 comprises the following steps of:
inoculating Streptococcus thermophilus JMCC16 or Lactobacillus delbrueckii subspecies JMCC0018 to a liquid MRS culture medium, and performing enrichment culture at 37 ℃ for 45-50h to obtain a first generation strain culture solution;
taking 1 volume part of first generation strain culture solution, adding 7-10 volume parts of skimmed milk, and performing proliferation culture at 37 deg.C for 14-18h to obtain second generation strain culture solution;
adding 7-10 parts by volume of skimmed milk into 1 part by volume of second generation strain culture solution, and performing proliferation culture at 37 deg.C for 14-18h to obtain Streptococcus thermophilus JMCC16 bacterial liquid or Lactobacillus delbrueckii subsp.
Streptococcus thermophilus JMCC16(Streptococcus thermophilus) is separated and screened from traditional fermented dairy products in Mongolia in China, and the strain is preserved in the China general microbiological culture Collection center in 2015 at 11-16.M.sup.M.sup.M.sup.M.sup.M.CCTCC with the preservation number of CGMCC No.11672, which is disclosed in an online patent application document with the application number of 201910644913. X.
Lactobacillus delbrueckii subspecies JMCC0018(Lactobacillus delbrueckii sp. bulbgaricus) is separated and screened from traditional fermented dairy products in the Tibet of China, and the strain is preserved in China general microbiological culture collection center in 7-14 th month in 2017 with the preservation number of CGMCC (China general microbiological culture Collection center) 14425, which is disclosed in patent document with the patent number of 201711359750.8.
Bifidobacterium animalis lactis i797(Bifidobacterium animalis subsp. lactis i797) is separated and screened from intestinal feces of infants or young children, and is preserved in the China general microbiological culture Collection center (CGMCC No. 18403) in 2019, 8 and 20 days, and the preservation number is CGMCC No.18403 which is disclosed for the first time in an online patent application with the application number of 202010259210.8.
The viable count of the obtained starter bacteria powder is 1 × 109-1×1011CFU/g;
The viable count of bifidobacterium animalis subsp lactis i797 in the bifidobacterium animalis subsp lactis i797 powder is 3 multiplied by 109-6×1011CFU/g。
The sweetener is at least one of white granulated sugar, fructose syrup, acesulfame, maltose and xylitol.
As a further limitation, in the reduced pressure distillation, the distillation time is 10-15min, the rotation speed is 40-50r/min, and the water bath temperature is 55-62 ℃. This process is achieved by a rotary evaporator.
As another limitation, the cow milk is prepared by homogenizing, sterilizing and cooling.
As a further limitation, the temperature of the homogenization is 62-68 ℃, and the pressure is 13-18 MPa; and the temperature is reduced to 35-40 ℃.
The invention also provides a preparation method of the apple-flavored fermented milk containing the natural green apple essence, which comprises the steps of uniformly mixing cow milk, white granulated sugar, a streptococcus thermophilus JMCC16 bacterial liquid and a Lactobacillus delbrueckii subsp.bulgaricus JMCC0018 bacterial liquid, fermenting, cooling, adding natural green apple juice, the natural green apple essence and bifidobacterium animalis subsp.lactis i797 bacterial powder, uniformly mixing and after-ripening to obtain the apple-flavored fermented milk.
As a limit, the fermentation temperature is 39-44 ℃, and the fermentation time is 23-25 h; the cooling is carried out to ensure that the temperature is 3-5 ℃; the after-ripening is carried out for 28-32 days at the temperature of 13-17 ℃.
Due to the adoption of the technical scheme, compared with the prior art, the invention has the technical progress that:
the apple-flavored fermented milk containing the natural green apple essence contains streptococcus thermophilus JMCC16, Lactobacillus delbrueckii subsp.bulgaricus JMCC0018 and Bifidobacterium animalis subsp.lactis i797, and the utilization and decomposition effects of the bacteria on organic substances in natural green apple juice or natural green apple essence generating the apple flavor are weak, so that the fragrance of the apples is weakened or the apple putrefactive odor is generated in the storage process of the fermented milk, and the fragrance of the apples can be kept stable in the quality guarantee period;
the invention provides the natural green apple essence with prominent apple fragrance and no chemical fragrance additive by adjusting the preparation process of the natural green apple essence, the production cost is low, and the natural green apple essence has good compatibility with streptococcus thermophilus JMCC16, Lactobacillus delbrueckii subsp.bulgaricus JMCC0018 and animal bifidobacterium lactis subsp.i 797 and is not easy to decompose;
the apple-flavored fermented milk containing the natural green apple essence is simple in preparation method and suitable for industrial production, and the prepared fermented milk is good in taste and obvious in apple aroma, and the aroma is kept well in the storage process in the shelf life.
Detailed Description
The present invention is further illustrated by the following specific examples, which are to be construed as merely illustrative, and not limitative of the remainder of the disclosure.
Example 1 preparation method of apple-flavored fermented milk containing natural green apple essence
The preparation method of this embodiment includes the following steps performed in sequence:
firstly) preparation of the fungus powder
I) Preparation of streptococcus thermophilus JMCC16 bacterial powder: taking 1 count of streptococcus thermophilus JMCC16 frozen tubes (the specification of the frozen tubes is 1mL) from a strain frozen storage library, inoculating streptococcus thermophilus JMCC16 in the tubes to 0.1L of liquid MRS culture medium, and carrying out enrichment culture at 37 ℃ for 48h to obtain a first generation strain culture solution of streptococcus thermophilus JMCC 16;
taking 0.1L culture solution of the first generation strain of streptococcus thermophilus JMCC16, adding 0.9L skim milk, and carrying out proliferation culture at 37 ℃ for 16h to obtain culture solution of the second generation strain of streptococcus thermophilus JMCC 16;
taking 0.1L of streptococcus thermophilus JMCC16 second generation strain culture solution, adding 0.9L of skim milk, and carrying out proliferation culture at 37 ℃ for 16h to obtain streptococcus thermophilus JMCC16 bacterial solution;
the streptococcus thermophilus JMCC16 bacterial powder is prepared by preparing the bacterial liquid and then replacing the bacterial liquid by Hebei Yiran Biotechnology Limited;
II) preparation of Lactobacillus delbrueckii subspecies Bulgaria JMCC0018 bacterial powder: taking a 1M Lactobacillus delbrueckii subspecies Bulgaria JMCC0018 frozen tube (the specification of the frozen tube is 2mL), inoculating the Lactobacillus delbrueckii subspecies Bulgaria JMCC0018 in the frozen tube into 10mL of liquid MRS culture medium, and performing enrichment culture at 37 ℃ for 48h to obtain a first generation strain culture solution of Streptococcus thermophilus JMCC 16;
1mL of culture solution of the first generation strain of Lactobacillus delbrueckii subspecies JMCC0018 was centrifuged at 12000rpm for 2min, and then the supernatant was discarded and 1mL of physiological saline was resuspended. Centrifuging at 12000rpm for 2min, discarding supernatant, resuspending 1mL sterilized skimmed milk, adding 9mL skimmed milk, and performing proliferation culture at 37 deg.C for 16h to obtain culture solution of second generation strain of Lactobacillus delbrueckii subsp.bulgaricus JMCC 0018;
taking 10mL of Lactobacillus delbrueckii subspecies Bulgaria JMCC0018 second generation strain culture solution, adding 90mL of skim milk, and carrying out proliferation culture at 37 ℃ for 16h to obtain Lactobacillus delbrueckii subspecies Bulgaria JMCC0018 bacterial solution;
the lactobacillus delbrueckii subspecies JMCC0018 bacterial powder is prepared by the substitution of hebei Yiran biological technology limited company after preparing corresponding bacterial liquid;
III) Bifidobacterium animalis subsp lactis i797 bacterial powder is prepared by substituting Hibei Yiran biotechnology limited;
second) preparation of natural green apple juice and natural green apple essence
Squeezing 100kg of fresh green apple to obtain natural green apple juice, and distilling the natural green apple juice with a rotary evaporator under reduced pressure at a water bath temperature of 55 deg.C and a distillation time of 10min and a rotation speed of 40r/min to obtain natural green apple essence.
Thirdly) preparing the apple-flavored fermented milk containing the natural green apple essence
(1) Pretreatment of milk
Homogenizing cow milk under 15MPa at 65 deg.C, sterilizing at 95 deg.C for 300s, and cooling to 38 deg.C.
(2) Preparation of apple-flavored fermented milk
2000kg of cow milk is taken, 180g of white granulated sugar (serving as a sweetening agent) is taken to be mixed with 1kg of streptococcus thermophilus JMCC16 bacterial powder and 1g of Lactobacillus delbrueckii subsp bulgaricus JMCC0018 bacterial powder (constituting 1kg of starter bacterial powder), fermented for 24h at 42 ℃, cooled to 4 ℃, added with 0.4kg of natural green apple juice, 0.1kg of natural green apple essence and 0.02kg of animal bifidobacterium lactis strain i797 bacterial powder, stirred and mixed evenly, and then placed at 15 ℃ for 29 days for ripening to prepare the apple-flavored fermented milk containing the natural green apple essence, which is marked as R1.
Wherein the viable count of the starter bacteria powder is 1 × 109CFU/g; the viable count of Bifidobacterium animalis and Lactobacillus subsp.lactis i797 in the powder of Bifidobacterium lactis and Lactobacillus subsp.lactis i797 is 6 × 1010CFU/g。
Examples 2-6 preparation of fermented milk with apple flavor containing Natural Green apple essence
Examples 2 to 6 are methods of preparing apple-flavored fermented milk containing natural green apple essence, respectively, and the steps are substantially the same as those of example 1, except for the differences in the amounts and parameters of the raw materials, as detailed in table 1:
wherein the sweetener is at least one of white granulated sugar (numbered I), fructose-glucose syrup (numbered II), acesulfame potassium (numbered III), maltose (numbered IV) and xylitol (numbered IV).
Table 1 raw material usage and parameter summary table in apple flavored fermented milk containing natural green apple essence
Figure BDA0003015648970000061
Figure BDA0003015648970000071
Figure BDA0003015648970000081
The contents of other portions of examples 2 to 6 are the same as those of example 1.
Example 7 analysis of volatile phase chemical composition of Natural Green apple essence
And (3) analyzing the volatile phase chemical components of the natural green apple essence prepared in the second step of the example 1 by adopting a solid phase microextraction and gas chromatography-mass spectrometry combined method, sucking 3mL of the natural green apple essence, transferring the natural green apple essence into a 10mL clean sample bottle, adding 0.9g of NaCl, and detecting the sample under the conditions that the extraction temperature is 40 ℃ and the extraction time is 30 min.
And (3) obtaining a preliminary identification result through computer retrieval, comparing with a standard map library provided by a NIST2002 mass spectrum library, carrying out artificial map analysis according to the retention index, similarity analysis and molecular weight, selecting an identification result with a large matching degree, and finally determining the chemical components of the volatile phase in the natural green apple essence.
And performing semi-quantitative analysis by adopting an internal standard method, wherein an internal standard additive is 3-octanol, and the peak area corresponding to each aroma component is multiplied by the ratio of the content of the added internal standard substance in the sample to the corresponding peak area of the internal standard substance, so as to calculate the relative content of each aroma component.
Relative aroma component content (mg/mL) ═ peak area x corresponding to each component (internal standard substance mass concentration)/(internal standard substance peak area)
The natural green apple essence volatile phase chemical components obtained by analysis are as follows:
ethanol (0.1582mg/mL), 1-butanol (0.4161mg/mL), 2-methylbutanol (0.7242mg/mL), amyl formate (0.02mg/mL), hexanal (0.0322mg/mL), hexanol (1.3743mg/mL), trans-2-hexen-1-ol (0.1458mg/mL), isoamyl acetate (0.0040mg/mL), trans-2-hexenal (0.0329mg/mL), 2, 4-trimethyl-1, 3-pentanediol diisobutyrate (0.2144mg/mL), and 7-methyleneazulen-6-ol (0.0117 mg/mL).
Example 8 sensory testing of apple-flavored fermented milks prepared with different starter powders
Preparation of apple-flavored fermented milk A1-A6: 2000g of cow milk (homogenized and sterilized), 180g of white granulated sugar and 1g of starter bacteria powder are taken, mixed uniformly, fermented at 42 ℃ for 24 hours, cooled to 4 ℃, added with 0.4g of natural green apple juice, 0.1g of natural green apple essence and 0.02g of bifidobacterium animalis subsp lactis i797 bacteria powder, stirred, mixed uniformly, placed at 15 ℃ for 29 days and then cooked to prepare the apple-flavored fermented milk, which is marked as A1-A6 in sequence, and the specific preparation method has the same process parameters as the example 1.
This example was conducted on trial drinking tests of apple-flavored fermented milks R1-R6 prepared in examples 1-6 and apple-flavored fermented milks A1-A6 prepared using 6 kinds of fermentation strains, respectively.
This test drink discloses that 15 professional dairy tasters were recruited to taste apple flavored fermented milks R1-R6 and a1-a6, and the flavors of the fermented milks were scored according to the sensory test evaluation criteria of table 3, with the results shown in table 4:
table 3 sensory test evaluation criteria table for apple-flavored fermented milk
Figure BDA0003015648970000091
TABLE 4 sensory test results on apple-flavored fermented milks prepared with different starter powders
Figure BDA0003015648970000092
As can be seen from table 4, the whole preference of the apple-flavored fermented milk with numbers a1, a6 and R1-R6 is better (above 7 min), the apple aroma and the fermented milk aroma are obvious and the off-flavor is smaller, especially the whole preference of the apple-flavored fermented milk with numbers R1-R6 is higher than that of the apple-flavored fermented milk with one of lactobacillus delbrueckii subsp bulgaricus or streptococcus thermophilus alone, which indicates that streptococcus thermophilus JMCC16 and lactobacillus delbrueckii subsp JMCC0018 have weak digestion and decomposition abilities of organic substances in natural green apple juice or natural green apple essence to generate apple flavor, thereby inhibiting the reduction of the aroma or generation of apple putrefactive odor during the storage of the fermented milk, and the two are synergistic and better than that of one strain is used alone.
The information on the fermentation strains used in this example A1-A6 is as follows:
streptococcus thermophilus JMCC16(Streptococcus thermophiles JMCC16) is separated and screened from traditional fermented dairy products in Mongolia in China, and the strain is preserved in the China general microbiological culture Collection center of China Committee for culture Collection of microorganisms at 11 month and 16 month 2015 with the preservation number of CGMCC No.11672, which is disclosed in an online patent application document with the application number of 201910644913. X.
Streptococcus thermophilus JMCC0024(Streptococcus thermophilus JMCC0024) is separated from Gansu traditional fermented milk and screened, and is stored in the common microorganism center of China Committee for culture Collection of microorganisms, the storage address is No. 3 of No.1 Siro of Beijing facing yang district, the storage date is 12 months and 14 days in 2018, and the storage number is CGMCC No. 16901; it is disclosed in the on-line patent application No. 201910344674.6.
Streptococcus thermophilus JMCC0028(Streptococcus thermophilus JMCC0028) the strain is preserved in China general microbiological culture Collection center (CGMCC NO. 19073) 12 and 3 months in 2019, and the preservation number is CGMCC NO.19073, which is applied for protection in the patent document with the application number of 2020113446552.
Streptococcus thermophilus JMCC0029(Streptococcus thermophilus JMCC0029) the strain is preserved in China general microbiological culture Collection center (CGMCC NO. 19074) 12.3.2019, and the preservation number is CGMCC NO.19074, which is applied for protection in the patent document with the application number of 2020115261758.
Streptococcus thermophilus JMCC0030(Streptococcus thermophilus JMCC0030) is separated and screened from Xinjiang traditional fermentation samples, and the strain is preserved in China general microbiological culture Collection center (CGMCC No. 19075) 12 and 3 months in 2019 with the preservation number of CGMCC NO.19075, which is applied for protection in patent document with the application number of 202011344643X.
Lactobacillus delbrueckii subspecies JMCC0018(Lactobacillus delbrueckii subsp. bulbgaricus JMCC0018) is separated and screened from traditional fermented dairy products in Tibet of China, and the strain is preserved in China general microbiological culture collection center in 7-14 th month in 2017, with the preservation number of CGMCC No.14425, which is disclosed in patent document with the patent number of 201711359750.8.
Example 9 sensory testing of apple-flavoured fermented milks prepared with post-fermentation addition of different probiotic strains
Preparation of apple-flavored fermented milk B1-B3: the process parameters of the specific preparation method are about the same as those of the example 1, and the difference is that no bifidobacterium animalis subsp lactis i797 bacterial powder is added after fermentation, other probiotic bacterial powder with the same quantity is added instead, the specific bacterial powder is shown in table 5, and the apple-flavored fermented milk is prepared and sequentially marked as B1-B3;
this example separately performed a trial drink test on the apple-flavored fermented milk R1 prepared in example 7 and the apple-flavored fermented milk B1-B3 prepared by adding 3 different probiotic strains after fermentation.
This test drink discloses that 15 professional dairy tasters were recruited to taste apple flavored fermented milks R1 and B1-B3, and the flavors of the fermented milks were scored according to the sensory test evaluation criteria of table 3, with the results shown in table 5:
TABLE 5 sensory test results on apple-flavored fermented milks prepared with post-fermentation addition of different probiotic strains
Figure BDA0003015648970000111
As can be seen from Table 5, the apple-flavored fermented milk R1 containing the natural green apple essence has the advantages of excellent mouthfeel and flavor, obvious apple aroma and fermented milk aroma and small peculiar smell, and is suitable for common consumers to eat, and the added bifidobacterium animalis subsp.lactis I797 has better compatibility with the natural green apple essence generating the apple flavor than other probiotics, so that the apple aroma is weakened or the apple putrefactive smell is generated in the storage process of the fermented milk.
The information on the fermentation strains employed in this example B1-B3 is as follows:
the Lactobacillus paracasei N1115(Lactobacillus paracasei N1115) used in the invention has been preserved in 17.3.2011 in China general microbiological culture Collection center of China Committee for culture Collection, No. 3, North Chen Lu No.1 Hospital, Tokyo, Japan, with the preservation number: CGMCC No.4691, which is disclosed in the Chinese invention patent with the patent number of 201110357058.8 for the first time.
Lactobacillus rhamnosus X253(Lactobacillus rhamnous X253) is separated and screened from traditional fermented dairy products in Xinjiang in China, and the strain is preserved in the China general microbiological culture collection center in 20 months and 8 months in 2019 with the preservation number of CGMCC No.18404, and is disclosed for the first time in an online patent application document with the application number of 202010258772.0.
Lactobacillus plantarum N3117(Lactobacillus plantarum N3117), which was deposited at 5 days 12/2014 at the China general microbiological culture Collection center, China Committee for culture Collection of microorganisms, No. 3, school Xilu No.1, North Cheng, the Yangtze district, Beijing, with the deposit number: CGMCC No.10133, which is disclosed in the Chinese invention patent with the patent number of 201510936243.0 for the first time.
Example 10 sensory testing of two apple-flavored fermented milks after storage
In this example, trial drinking tests were carried out on the apple-flavored fermented milk R1 prepared in example 7 and the above apple-flavored fermented milk B1, respectively.
This trial drink test disclosed that 15 professional dairy tasters were recruited to taste the apple flavored fermented milk R1 and B1 produced on the same day, once every 7 days, and the flavor of the fermented milk was scored according to the sensory test evaluation criteria of table 3, and the scoring results were recorded as shown in table 6:
TABLE 6 organoleptic test results of two apple-flavored fermented milks after storage
Figure BDA0003015648970000121
Figure BDA0003015648970000131
As can be seen from table 6, the apple-flavored fermented milk R1 containing the natural green apple essence of the present invention has superior mouthfeel and flavor, and compared with the apple-flavored fermented milk B1, the apple aroma and the fermented milk aroma during storage are significant and have less off-flavor, the preference is more than 6, the apple aroma can still maintain a significant level, and the off-flavor is slightly acceptable.
In conclusion, the probiotic combination proportion of the apple-flavored fermented milk containing the natural green apple essence is reasonable, and the prepared apple-flavored fermented milk has good apple flavor, small peculiar smell and high liking degree in a long-term storage process.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and are not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical content as a teaching to make changes or modifications to the equivalent embodiments with equivalent changes, but all those simple changes, equivalent changes and modifications made to the above-mentioned embodiments without departing from the technical spirit of the present invention, and still all those embodiments are within the scope of the present invention as claimed in the claims.

Claims (8)

1. The apple-flavored fermented milk containing natural green apple essence is characterized in that the raw materials for preparing the effective components comprise the following components in parts by weight: 1800 portions of cow milk, 2200 portions of sweetening agent, 0.14 to 0.18 portion of leavening agent bacterial powder, 0.1 to 1 portion of bifidobacterium animalis subspecies lactis i797 bacterial powder, 0.2 to 0.4 portion of natural green apple juice and 0.001 to 0.1 portion of natural green apple essence;
the viable count of the starter bacteria powder is 1 × 109-1×1011CFU/g, wherein the ratio of the viable count of the streptococcus thermophilus JMCC16 to the viable count of the lactobacillus delbrueckii subspecies jMCC0018 is 1000-10000: 1;
the viable count of bifidobacterium animalis subsp lactis i797 in the bifidobacterium animalis subsp lactis i797 powder is 3 multiplied by 109-6×1011CFU/g。
2. The apple-flavored fermented milk containing natural green apple essence according to claim 1, wherein the sweetener is at least one of white granulated sugar, fructose corn syrup, acesulfame potassium, maltose and xylitol.
3. The apple-flavored fermented milk containing natural green apple essence according to claim 1, wherein the natural green apple essence is obtained by squeezing green apples and distilling the obtained natural green apple juice under reduced pressure.
4. The apple-flavored fermented milk containing natural green apple essence according to claim 3, wherein the reduced pressure distillation time is 10-15min, the rotation speed is 40-50r/min, and the water bath temperature is 55-62 ℃.
5. The apple-flavored fermented milk containing natural green apple essence according to any one of claims 1 to 3, wherein the milk is prepared by homogenizing, sterilizing and cooling.
6. The apple-flavored fermented milk containing natural green apple essence according to claim 5, wherein the temperature of homogenization is 62-68 ℃, and the pressure is 13-18 MPa; and the temperature is reduced to 35-40 ℃.
7. The preparation method of the fermented milk with apple flavor containing natural green apple essence, according to any one of claims 1 to 6, is characterized in that cow milk, white granulated sugar, streptococcus thermophilus JMCC16 bacterial powder and Lactobacillus delbrueckii subsp.bulgaricus JMCC0018 bacterial powder are mixed uniformly, fermented and cooled, then natural green apple juice, natural green apple essence and Bifidobacterium animalis subsp.i 797 bacterial powder are added and mixed uniformly, and after-ripening is carried out, the fermented milk with apple flavor is obtained.
8. The method for preparing the fermented milk with apple flavor containing natural green apple essence according to claim 7, wherein the fermentation temperature is 39-44 ℃ and the fermentation time is 23-25 h; the cooling is carried out to ensure that the temperature is 3-5 ℃; the after-ripening is carried out by standing at 13-17 deg.C for 28-32 days.
CN202110388874.9A 2021-04-12 2021-04-12 Apple-flavored fermented milk containing natural green apple essence and preparation method thereof Pending CN113100293A (en)

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