Disclosure of Invention
The invention aims to provide a narqu 4580 probiotic and a preparation thereof, which can help to improve blood pressure and can effectively reduce the blood pressure of a human body. Meanwhile, the invention also provides a preparation method of the narcotine 4580 probiotic preparation and application of the narcotine 4580 probiotic preparation in the aspect of assisting in reducing blood pressure.
The technical scheme adopted by the invention for realizing the purpose is as follows:
a nadroph 4580 probiotic with antihypertensive activity is prepared by mixing the following components in parts by weight: s7092% -5% of Streptococcus thermophilus, L57810-20% of Lactobacillus paracasei and L55175% -88% of Lactobacillus helveticus; the Streptococcus thermophilus (Streptococcus thermophilus) S709 is preserved in the China general microbiological culture Collection center with the preservation number of CGMCC NO.18028, Lactobacillus paracasei (Lactobacillus paracasei) L578, is preserved in the China general microbiological culture Collection center with the preservation number of CGMCC NO.15603 and has the preservation date of 2018, 4 months and 11 days; the Lactobacillus helveticus L551 is preserved in the China general microbiological culture Collection center of China Committee for culture Collection of microorganisms with the preservation number of CGMCC NO.15604 and the preservation date of 2018, 4 months and 11 days.
Use of narcotine 4580 probiotic in the preparation of a food product for the adjuvant treatment of blood pressure or hypertension.
Use of a narcotine 4580 probiotic formulation in the preparation of a food product for the adjuvant treatment of blood pressure or hypertension.
Furthermore, the food comprises a food prepared by taking the narqu 4580 probiotic preparation as a main medicine active ingredient or taking the narqu 4580 probiotic preparation as an auxiliary material.
Further, the food is prepared from a preparation of the narcotine 4580 probiotics and a pharmaceutically acceptable carrier.
Furthermore, the formulation of the narqu 4580 probiotic preparation is any one of powder, granules, emulsion, tablets, blocks, rods and oral liquid.
Further, the oral liquid is the narcotine 4580 probiotic fermentation liquid.
Further, the powder or the oral liquid is prepared by the following method:
a. mixing materials: adding culture medium into the material dissolving tank, adding 10-30g/L sodium glutamate, stirring for 10-15min, and maintaining the temperature of the material liquid at 55-60 deg.C;
b. and (3) sterilization: sterilizing the feed liquid, and pumping into a fermentation tank, wherein the pasteurization temperature is 105 ℃ and 115 ℃, and the time is 15-20 min;
c. fermentation: b, inoculating the narcotile 4580 probiotics to the feed liquid treated in the step b for fermentation, wherein the fermentation temperature is 37-45 ℃, and the fermentation temperature is 28-35 h;
d. stirring in a fermentation tank when the pH value of the fermentation is 4.4-4.6, controlling the rotating speed to be 100 and 300rpm/min, and sterilizing or not sterilizing to obtain the narqu 4580 probiotic fermentation liquor;
e. d, obtaining the narqu 4580 probiotic fermentation liquor which is the oral liquid;
or, carrying out deep-cooling granulation and freeze-drying on the narqu 4580 probiotic fermentation liquor obtained in the step d to obtain a probiotic mixed preparation narqu 4580 freeze-dried powder, namely powder;
or, spraying powder on the narqu 4580 probiotic fermentation liquor obtained in the step d and drying to obtain the narqu 4580 probiotic preparation, namely powder.
The invention has the beneficial effects that:
the Naqu 4580 probiotics have the effect of assisting in reducing blood pressure and can be metabolized to generate small molecular substances with the blood pressure reducing activity. The Naqu 4580 probiotics have obvious effect of improving the blood pressure quality of a human body.
The Nagqu4580 probiotic preparation (namely the Naqu 4580 probiotic preparation) has good acid resistance, can grow well under the environment condition of pH3.0, can generate high-content gamma-aminobutyric acid, antihypertensive peptide substances, tryptophan, chlorogenic acid, lactic acid, acetic acid, citric acid, tartaric acid and the like, and can cause cerebral vasodilatation through a GABAA receptor on the surface of a cortical cerebral blood vessel, so that the blood pressure is reduced; on the other hand, gamma-aminobutyric acid and antihypertensive peptide can inhibit the activity of Angiotensin Converting Enzyme (ACE), thereby achieving the effect of lowering blood pressure.
Detailed Description
The present invention will be further described with reference to the following examples. The Nagqu4580 probiotic preparation (namely the Nagqu4580 probiotic preparation) capable of reducing blood pressure is provided by the invention, the Nagqu4580 probiotic preparation is prepared by fermenting Nagqu4580 fermenting agent, the fermenting agent is provided by Hebei Yiran Biotechnology Co., Ltd, and the Nagqu4580 fermenting agent is Nagqu4580 probiotic. In the present invention, the raw materials and equipment used are commercially available or commonly used in the art, unless otherwise specified. The methods in the following examples are conventional in the art unless otherwise specified. The streptococcus thermophilus, the lactobacillus paracasei and the lactobacillus helveticus used in the invention are all the existing strains of the hebei Yiran biotechnology limited company.
Detailed description of the preferred embodiments
The Nagqu4580 probiotic preparation can be oral liquid or powder, and the preparation method comprises the following steps:
preparing oral liquid:
a. mixing materials: adding conventional culture medium into a material dissolving tank, adding 10-30g/L sodium glutamate, dissolving and stirring for 10-15min, and keeping the temperature of the material liquid at 55-60 ℃;
b. and (3) sterilization: sterilizing the feed liquid, and pumping into a fermentation tank, wherein the pasteurization temperature is 105 ℃ and 115 ℃, and the time is 15-20 min;
c. fermentation: b, inoculating a Nagqu4580 leavening agent (provided by Hebeiyi Biotechnology limited, namely Naqu 4580 probiotics) to the material liquid treated in the step b for fermentation, wherein the fermentation temperature is 37-45 ℃, and the fermentation temperature is 28-35 h;
d. stirring in a fermentation tank when the pH value of the fermentation is 4.4-4.6, and optionally sterilizing at high temperature to obtain the Naqu 4580 probiotic fermentation liquid, namely the oral liquid.
Preparation of powder:
a. mixing materials: adding conventional culture medium into a material dissolving tank, adding 10-30g/L sodium glutamate, dissolving and stirring for 10-15min, and keeping the temperature of the material liquid at 55-60 ℃;
b. and (3) sterilization: sterilizing the feed liquid, and pumping into a fermentation tank, wherein the pasteurization temperature is 105 ℃ and 115 ℃, and the time is 15-20 min;
c. fermentation: b, inoculating a Nagqu4580 leavening agent (provided by Hebeiyi Biotechnology Co., Ltd.) to the feed liquid treated in the step b for fermentation, wherein the fermentation temperature is 37-45 ℃, and the fermentation temperature is 28-35 h;
d. stirring in a fermentation tank when the pH value of the fermentation is 4.4-4.6, and optionally sterilizing at high temperature to obtain a narqu 4580 probiotic fermentation liquid;
e. and (3) carrying out cryogenic granulation (dripping liquid bacteria liquid into liquid nitrogen, instantly cooling to-193 ℃), and freeze-drying (vacuumizing and freeze-drying at the temperature of-20 to-70 ℃) to obtain the Nagqu4580 probiotic powder preparation.
The powder can also be prepared by the following method:
a. mixing materials: adding conventional culture medium into a material dissolving tank, adding 10-30g/L sodium glutamate, dissolving and stirring for 10-15min, and keeping the temperature of the material liquid at 55-60 ℃;
b. and (3) sterilization: sterilizing the feed liquid, and pumping into a fermentation tank, wherein the pasteurization temperature is 105 ℃ and 115 ℃, and the time is 15-20 min;
c. fermentation: b, inoculating a Nagqu4580 leavening agent (provided by Hebeiyi Biotechnology Co., Ltd.) to the feed liquid treated in the step b for fermentation, wherein the fermentation temperature is 37-45 ℃, and the fermentation temperature is 28-35 h;
d. stirring in a fermentation tank when the pH value of the fermentation is 4.4-4.6, and optionally sterilizing at high temperature to obtain a narqu 4580 probiotic fermentation liquid;
e. spraying and drying (high pressure pump pressure 13-19Mpa, air inlet temperature 162-.
Example 1
a. Mixing materials: adding MRS culture medium into a material dissolving tank, then adding 30g/L sodium glutamate, dissolving and stirring for 15min, and keeping the temperature of the material liquid at 55 ℃;
b. and (3) sterilization: sterilizing the feed liquid, and pumping into a fermentation tank, wherein the pasteurization temperature is 115 ℃, and the time is 20 min;
c. fermentation: b, inoculating a Nagqu4580 leavening agent (provided by Hebeiyi Biotechnology Co., Ltd.) to the feed liquid treated in the step b for fermentation, wherein the fermentation temperature is 37 ℃ and the fermentation temperature is 35 hours;
d. stirring in a fermentation tank when the pH value of the fermentation is 4.4 to obtain a narqu 4580 probiotic fermentation liquid;
e. and (3) carrying out cryogenic granulation (dripping the narqu 4580 probiotic fermentation liquid into liquid nitrogen, instantly cooling to-193 ℃), and freeze-drying (carrying out vacuum freeze-drying at-70 ℃) to obtain the Nagqu4580 probiotic preparation.
Second, Performance test
1. Example 1 determination of the content of gamma-aminobutyric acid in a Nagqu4580 probiotic formulation
(1) And the method adopts high performance liquid chromatography for determination, and comprises the following steps:
preparing a mobile phase: mobile phase A: 50% -60% acetonitrile;
mobile phase B: ammonium acetate in water (20-30 mM);
detection conditions are as follows: a chromatographic column: agilent C18.
(2) And the result of the detection
Detecting by high performance liquid chromatography, and detecting the content of gamma-aminobutyric acid at 76-90mg/g with reference to figure 1.
2. Example 1Nagqu4580 probiotic formulation antihypertensive activity assay optimization
The detection of the antihypertensive peptide active substance was carried out by a spectrophotometer method as follows:
1) adding 100-200 mul of Hip-His-Leu solution of 2-5mmol/L and 50-100 mul of the mixed preparation sample of the Naqu 4580 probiotics of the invention into a test tube, and preserving the heat for 1-3min at 35-37 ℃;
2) adding 10-20 μ l of ACE solution, mixing, and keeping the temperature at 35-37 deg.C for 15-30 min;
3) adding 200-;
4) adding 1-1.7ml of ethyl acetate, shaking and mixing uniformly for 10-15s, and centrifuging (3000-4000r/min for 15-20 min);
5) sucking 0.5-1.0ml of ethyl acetate layer by a pipette, evaporating to dryness in an oven at 100-120 ℃ for 20-30min, and dissolving in 1-3ml of deionized water again;
6) the absorbance was measured at 228 nm.
The captopril antihypertensive drug is used as a control group, and the antihypertensive activity is detected, wherein the detection result is as follows:
the invention shows that products capable of generating ACE inhibitory peptide activity are produced by using the narqu 4580 probiotics, and certain development and popularization prospects are shown. The experiment only carries out preliminary discussion on the development of the antihypertensive product, aims to promote the development and utilization of probiotics and the development of functional food and bring benefits to human beings.
3. The Nagqu4580 probiotic preparation in the embodiment 1 of the invention is taken at a dosage of 0.5-2 g/day by a human body every day and is taken 0.5-1 hour before sleeping.
The narqu 4580 probiotics can generate antihypertensive active substances, and the narqu 4580 probiotic preparation product contains bacteria and is also accompanied with antihypertensive active substance components, so that the bacteria can reach the intestinal tract to achieve the purpose of reducing blood pressure, and the antihypertensive active substances can directly enter blood through the intestinal tract to achieve the purpose of quickly inhibiting ACE enzyme, and the possibility of assisting blood pressure reduction is achieved.
The research of the invention is based on the experimental verification that the edible lactobacillus conforming to food carries out the experiment verification, the blood pressure reducing active substance generated by metabolism has the inhibiting effect on ACE enzyme (vasoconstriction and blood pressure rise caused by activity increase) causing hypertension, and the verification based on the experimental basis can possibly play a certain role in assisting the blood pressure reduction.