Compound prebiotic powder

Abstract

The invention discloses compound prebiotics powder, and relates to the technical field of prebiotics. According to the three-dimensional synergistic mechanism, the total amount of short-chain fatty acid is remarkably increased (40-60% higher than that of a single component), and the total amount of short-chain fatty acid is remarkably increased through butyric acid-mediated intestinal barrier reinforcement, acetic acid-regulated glycolipid metabolism optimization, succinic acid-supported immune balance and ackermann bacterium-driven mucous layer repair. Synchronous intervention on key pathological links (insulin resistance, chronic inflammation and intestinal fistula) of the metabolic syndrome is realized, and a three-in-one health regulation target of flora-metabolism-immunity is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of prebiotics, and particularly relates to a compound prebiotic powder. BACKGROUND

[0002] Prebiotics refers to some organic substances which are not digested and absorbed by a host, but can selectively promote the metabolism and proliferation of beneficial bacteria in the body, thereby improving the health of the host. When passing through the upper digestive tract, most of the prebiotics are not digested but can be fermented by intestinal flora. It only stimulates the growth of beneficial bacteria, but not harmful bacteria with potential pathogenicity or spoilage activity.

[0003] In the prior art, common prebiotic powders are mostly composed of a single component, such as inulin, fructooligosaccharides or galactooligosaccharides. Although these single-component prebiotic powders can promote the growth of specific beneficial bacteria, they have the problems of low bioavailability, poor intestinal adaptability and insufficient stability. Therefore, the present application provides a compound prebiotic powder. SUMMARY

[0004] The present application aims at solving the problems mentioned in the background art, and provides a compound prebiotic powder.

[0005] In order to achieve the above-mentioned purpose, the present application specifically adopts the following technical scheme:

[0006] A compound prebiotic powder, which is composed of the following components in the following mass ratio:

[0007] 25-40% of green banana powder, which is used to provide resistant starch (RS2) and high-fat pectin;

[0008] 15-25% of corn arabinoxylan, which is used to compensate for the loss of RS2 efficiency;

[0009] 5-15% of low-ester citrus pectin, which is used to make up the pectin gap and directionally activate the succinic acid pathway of Bacteroides;

[0010] 10-18% of polydextrose, which is used to maintain bacterial diversity;

[0011] 8-15% of fructooligosaccharides (FOS), which is used to provide acetic acid energy;

[0012] 3-8% of oat beta-glucan, which is used to activate Roseburia;

[0013] 2-6% of inulin (DP≥23), which is used to retain long-chain slow-release characteristics;

[0014] 3-7% of xylooligosaccharides (XOS), which is used to achieve targeted Akkermansia.

[0015] Further, the compound prebiotic powder is composed of the following components in the following mass ratio: green banana powder 40%, corn arabinoxylan 15%, low-ester citrus pectin 5%, polydextrose 15%, fructo-oligosaccharide (FOS) 10%, oat beta-glucan 6%, inulin (DP≥23) 6%, and xylo-oligosaccharide (XOS) 3%.

[0016] Further, the compound prebiotic powder is composed of the following components in the following mass ratio: green banana powder 40%, corn arabinoxylan 15%, low-ester citrus pectin 5%, polydextrose 15%, fructo-oligosaccharide (FOS) 10%, oat beta-glucan 6%, inulin (DP≥23) 6%, and xylo-oligosaccharide (XOS) 3%.

[0017] Further, the compound prebiotic powder is composed of the following components in the following mass ratio: green banana powder 40%, corn arabinoxylan 15%, low-ester citrus pectin 5%, polydextrose 15%, fructo-oligosaccharide (FOS) 10%, oat beta-glucan 6%, inulin (DP≥23) 6%, and xylo-oligosaccharide (XOS) 3%.

[0018] Further, the compound prebiotic powder is composed of the following components in the following mass ratio: green banana powder 40%, corn arabinoxylan 15%, low-ester citrus pectin 5%, polydextrose 15%, fructo-oligosaccharide (FOS) 10%, oat beta-glucan 6%, inulin (DP≥23) 6%, and xylo-oligosaccharide (XOS) 3%.

[0019] A method for preparing a compound prebiotic powder, the method comprising the following steps:

[0020] S1, weighing raw materials: weighing green banana powder, corn arabinoxylan, low-ester citrus pectin, polydextrose, fructo-oligosaccharide (FOS), oat beta-glucan, inulin (DP≥23), and xylo-oligosaccharide (XOS) according to the weight ratio;

[0021] S2, preliminary mixing: placing all the weighed raw materials in a high-speed mixer, and performing preliminary mixing at a speed of 800-1200 r / min under room temperature conditions for 3-5 minutes to ensure uniform dispersion of the raw materials;

[0022] S3, fine mixing: transferring the preliminarily mixed material to a three-dimensional motion mixer, and mixing under light-proof conditions for 10-15 minutes at a speed of 200-300 r / min to eliminate clumping and improve uniformity;

[0023] S4, screening treatment: screening the uniformly mixed powder through a 80-100 mesh screen to remove coarse particles and ensure that the powder fineness meets the requirements;

[0024] S5, packaging: the screened compound prebiotic powder is divided into aluminum foil bags, each bag contains 5g, sealed and packaged in an environment with relative humidity of 40% or less, and stored in a cool and dry place.

[0025] Further, the mixing temperature of the high-speed mixer is controlled at 15-30℃ to avoid the inactivation of heat-sensitive components due to friction heating.

[0026] Further, the filling rate in the three-dimensional motion mixer is controlled at 60%-70% to ensure the mixing efficiency and avoid dusting of the powder.

[0027] Further, the screening process is carried out in a clean environment with humidity below 35%, and the moisture content of the screened powder is controlled below 3.0%.

[0028] Further, the aluminum foil bag contains food-grade deoxidizer, and is sealed by nitrogen replacement after packaging.

[0029] The beneficial effects of the present application are as follows:

[0030] 1. The first level of synergy of the present application is reflected in the complementary fermentation kinetics - fructooligosaccharides (FOS) and corn arabinoxylan provide initial energy and butyrate precursors in the proximal colon, while the slow-release structure of green banana powder resistant starch, inulin (DP≥23) and polydextrose provides sustained energy in the distal colon, ensuring full coverage of the intestinal fermentation window.

[0031] 2. The second level of synergy of the present application is reflected in the optimization of metabolic pathways - the activated succinic acid pathway of low-ester citrus pectin, the strengthened Roseburia butyric acid pathway of oat beta-glucan, and the mucus repair pathway of Akkermansia targeted by xylooligosaccharides (XOS) are interwoven, together constructing an efficient short-chain fatty acid spectrum (especially the ratio of butyric acid / acetic acid / propionic acid) and an immune regulation network.

[0032] 3. The third level of synergy of the present application focuses on niche regulation - the broad-spectrum fermentation characteristics of polydextrose maintain microbial diversity, the long-chain structure of inulin preserves niche space, and the specific activation of beneficial bacteria (Bifidobacterium, Lactobacillus, Bacteroides, Roseburia, Akkermansia) by cross-feeding forms a metabolic interaction network, ultimately establishing a strong anti-disturbance and functionally complete microbial steady state in the intestinal microenvironment. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is the preparation flowchart of the present application. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application.

[0035] Referring to Figure 1 The present application provides a compound prebiotic powder, which is composed of the following components in the following mass ratio:

[0036] Green banana powder 25-40%, for providing resistant starch (RS2) and high-ester pectin.

[0037] Green banana powder provides specific proportions of RS2 and high-ester pectin as specific sources, rather than ordinary resistant starch or pectin, so as to better maintain the balance of intestinal flora and promote the production of short-chain fatty acids. Its unique RS2 structure slowly ferments in the intestine, providing sustained nutrition for beneficial bacteria such as bifidobacteria; and high-ester pectin forms a gel matrix to synergistically slow down the release rate of sugar, thereby reducing the peak of blood sugar response. The synergistic effect of this specific component is significantly better than that of a single addition of ordinary resistant starch or pectin formula, achieving the dual optimization of prebiotic activity and metabolic regulation function.

[0038] Corn arabinoxylan 15-25%, for compensating for the loss of RS2 efficiency.

[0039] Corn arabinoxylan, as a core butyric acid precursor, directly promotes butyric acid production through efficient fermentation, effectively making up for the efficiency loss caused by the slow fermentation of RS2 in green banana powder. Its unique branched structure is quickly utilized by microorganisms in the intestine, generating high-concentration butyric acid, thereby optimizing the short-chain fatty acid spectrum and enhancing the anti-inflammatory effect. At the same time, corn arabinoxylan and high-ester pectin in green banana powder synergistically form a complex fermentation matrix, further enhancing the colonization efficiency of bifidobacteria and lactic acid bacteria, and achieving precise regulation of intestinal flora homeostasis. This compensation mechanism not only maintains the balance of the overall fermentation rate, but also strengthens blood sugar stability and metabolic health benefits, ultimately ensuring that the synergistic effect of the compound formula far exceeds that of a single component.

[0040] Low-ester citrus pectin 5-15%, for making up the pectin gap and directionally activating the Bacteroides succinate pathway.

[0041] Low-ester citrus pectin has a lower degree of esterification, making it more easily recognized and utilized by intestinal microorganisms, particularly by selectively promoting the growth and metabolic activity of Bacteroides, thereby efficiently activating the succinic acid biosynthesis pathway; it can greatly increase the yield of succinic acid, which as a key metabolic intermediate not only optimizes energy supply to support the proliferation of beneficial bacteria, but also enhances intestinal barrier function and reduces local inflammatory response. At the same time, low-ester citrus pectin complements the high-ester pectin of green banana powder to jointly regulate the pectin network structure, while corn arabinoxylan synergistically strengthens the stability of the fermentation substrate, ensuring the balanced distribution of short-chain fatty acid spectrum, especially the optimization of the ratio of propionic acid and butyric acid. This multi-component synergistic mechanism not only makes up for the functional limitations of single pectin, but also significantly improves the overall formula's comprehensive benefits for blood glucose homeostasis, immune regulation, and metabolic health, achieving a comprehensive improvement in prebiotic efficacy.

[0042] Polydextrose 10-18% for maintaining microbial diversity.

[0043] Polydextrose, as a highly decomposed soluble dietary fiber, has extensive microbial accessibility and can be efficiently utilized by various beneficial flora such as Bifidobacterium, Lactobacillus, and Roseburia, thereby avoiding the dominance of single bacterial species and maintaining the diversity and dynamic balance of the intestinal microecology. Its unique molecular structure allows for slow and persistent fermentation in the intestine, providing sustained nutritional support for flora with different metabolic needs while reducing the colonization space for harmful bacteria. The fermentation products of polydextrose include not only short-chain fatty acids such as acetic acid and propionic acid, but also promote the generation of butyric acid precursors, further optimizing the short-chain fatty acid spectrum and enhancing intestinal barrier integrity. In addition, polydextrose forms a synergistic substrate with the resistant starch of green banana powder, delaying the overall fermentation rate and ensuring balanced nutrient release; it complements the oligosaccharide components of corn arabinoxylan, enhancing butyric acid production and strengthening anti-inflammatory effects; and it binds with the gel network of low-ester citrus pectin, enhancing the stability of the fermentation substrate and the colonization efficiency of the flora. This multi-component synergistic mechanism significantly improves the formula's ability to regulate intestinal flora diversity, not only supporting the balanced proliferation of beneficial bacteria, but also strengthening the benefits of blood glucose homeostasis, immune regulation, and metabolic health, achieving a comprehensive optimization of prebiotic activity.

[0044] Fructooligosaccharides (FOS) 8-15% for providing acetic acid energy.

[0045] As a highly fermentable prebiotic, fructooligosaccharides (FOS) are rapidly metabolized by acid-producing bacteria such as Bifidobacterium and Lactobacillus, and preferentially converted into acetic acid, providing immediate energy support for intestinal epithelial cells and systemic metabolism. Its short-chain molecular structure allows efficient utilization in the proximal colon, generating high concentrations of acetic acid, which as a key short-chain fatty acid not only optimizes local energy supply in the intestine, but also regulates liver glycolipid metabolism through the portal circulation, thereby reducing systemic inflammatory markers and enhancing insulin sensitivity. At the same time, fructooligosaccharides (FOS) form a complementary fermentation gradient with resistant starch from green banana powder, with the former providing initial energy through rapid fermentation and the latter slowly releasing nutrients to ensure the sustainability of bacterial metabolism; in synergy with butyric acid precursors from corn arabinoxylan, it improves the balance of the overall short-chain fatty acid profile, avoiding pH imbalance caused by single acid accumulation; and in combination with the succinic acid pathway of low-ester citrus pectin, it enhances the metabolic activity of Bacteroides, further optimizing the conversion efficiency of acetic acid into other beneficial metabolites. In addition, the broad-spectrum fermentation characteristics of fructooligosaccharides (FOS) and polydextrose synergize to maintain the diversity of bacterial populations such as Bifidobacterium and Roseburia, preventing the overproliferation of single species, ultimately achieving dual optimization of energy supply and bacterial homeostasis, significantly enhancing the comprehensive benefits of the formula for metabolic health and immune regulation.

[0046] Oat beta-glucan 3-8% for activating Roseburia.

[0047] The unique beta-1,3 / 1,4-glucan structure of oat beta-glucan can be specifically recognized and efficiently utilized by Roseburia, selectively promoting the proliferation and metabolic activity of this bacterial population. As a key butyric acid producer, the activation of Roseburia can significantly increase intestinal butyric acid levels, enhance intestinal mucosal barrier function, and reduce local inflammatory response. At the same time, oat beta-glucan synergizes with butyric acid precursors from corn arabinoxylan to further enhance butyric acid production and strengthen anti-inflammatory effects; complements the acetic acid energy supply with fructooligosaccharides (FOS), optimizing energy metabolism pathways and supporting intestinal epithelial cell function; and combines with the broad-spectrum fermentation characteristics of polydextrose to maintain bacterial diversity, preventing the overdomination of Roseburia. This targeted activation mechanism not only perfects the precise regulation of specific beneficial bacteria by the formula, but also synergistically optimizes the short-chain fatty acid profile by enhancing the health benefits mediated by butyric acid, ultimately improving overall metabolic stability and immune regulation efficiency.

[0048] Inulin (DP≥23) 2-6% for retaining long-chain slow-release properties.

[0049] Inulin (DP≥23) with its highly polymerized linear long-chain structure (polymerization degree ≥23) can achieve slow and persistent fermentation in the distal colon, providing sustained nutritional support for late-fermenting flora such as Bifidobacterium, avoiding metabolic imbalance caused by excessive consumption of short-chain prebiotics in the proximal colon. Its slow-release characteristics effectively extend the fermentation window period, ensuring the balanced release of beneficial metabolites (such as butyric acid) throughout the colon, thereby enhancing intestinal barrier repair and systemic immune regulation functions. At the same time, the long-chain structure of inulin and resistant starch (RS2) of green banana powder form a complex slow-release matrix, further slowing down the overall fermentation rate and optimizing the kinetics of nutrient release; complementing the rapid fermentation characteristics of corn arabinoxylan, maintaining the spatial and temporal balance of short-chain fatty acid production; and synergizing with the branched structure of polydextrose to expand the colonization niche of microbial communities, strengthening bacterial diversity and metabolic stability. This synergistic slow-release mechanism significantly enhances the formula's ability to regulate the entire colon microenvironment, ultimately achieving long-term and maximized metabolic health benefits.

[0050] Xylo-oligosaccharides (XOS) 3-7% for targeted Akkermansia.

[0051] Xylo-oligosaccharides (XOS) can be specifically recognized and efficiently utilized by Akkermansia muciniphila through its unique low molecular weight xylo-oligosaccharide structure, thereby precisely promoting the colonization and proliferation of this key symbiotic bacteria. Activation of Akkermansia significantly enhances the thickness of the intestinal mucus layer and improves intestinal barrier integrity, while regulating host immune response and energy metabolism pathways, effectively reducing systemic low-grade inflammation and improving insulin sensitivity. Its targeted mechanism synergizes with the long-chain slow-release characteristics of inulin (DP≥23) to ensure sustained nutrient supply for Akkermansia in the distal colon; complements the Roseburia activation of oat beta-glucan to optimize the butyric acid-producing microenvironment; and combines with the broad-spectrum prebiotic effect of polydextrose to maintain the ecological balance between Akkermansia and other beneficial flora, avoiding the overgrowth of a single bacterial genus. This precise targeting strategy not only strengthens the intestinal barrier protection and metabolic regulation functions, but also synergistically enhances the formula's intervention potential for metabolic diseases such as obesity and diabetes through the immune regulation pathways mediated by Akkermansia.

[0052] The synergistic effect of multi-dimension and multi-target can be achieved by the effective combination of the above ingredients: the first level of synergy is reflected in the complementary fermentation kinetics - the rapid fermentation of fructooligosaccharides (FOS) and corn arabinoxylan in the proximal colon provides initial energy and butyric acid precursors, while the slow-release structure of green banana powder resistant starch, inulin (DP≥23) and polydextrose provides sustained energy in the distal colon, ensuring full coverage of the intestinal fermentation window; the second level of synergy is reflected in the optimization of metabolic pathways - the activated succinic acid pathway of low-ester citrus pectin, the strengthened Roseburia butyric acid pathway of oat beta-glucan, and the mucus repair pathway of Akkermansia targeted by xylooligosaccharides (XOS) are interwoven to jointly construct an efficient short-chain fatty acid spectrum (especially the ratio of butyric acid / acetic acid / propionic acid) and an immune regulation network; the third level of synergy focuses on niche regulation - the broad-spectrum fermentation characteristics of polydextrose maintain bacterial diversity, the long-chain structure of inulin preserves niche space, and the specific activation of beneficial bacterial groups (Bifidobacterium, Lactobacillus, Bacteroides, Roseburia, Akkermansia) by each component forms a metabolic interaction network through cross-feeding, ultimately establishing a strong anti-disturbance and functionally complete bacterial community homeostasis in the intestinal microenvironment. This three-dimensional synergistic mechanism not only significantly increases the total amount of short-chain fatty acids (40-60% higher than single component), but also achieves simultaneous intervention on key pathological links of metabolic syndrome (insulin resistance, chronic inflammation, intestinal leakage) through butyric acid-mediated intestinal barrier strengthening, acetic acid-regulated glycolipid metabolism optimization, succinic acid-supported immune balance, and Akkermansia-driven mucus layer repair, achieving the goal of "bacterial community-metabolism-immune" trinity health regulation.

[0053] Example 1

[0054] For reference Figure 1 The application also provides a preparation method of the compound prebiotic powder, which comprises the following steps:

[0055] S1, weighing the raw materials: according to the weight ratio, taking green banana powder 40%, corn arabinoxylan 15%, low-ester citrus pectin 5%, polydextrose 15%, fructooligosaccharides (FOS) 10%, oat beta-glucan 6%, inulin (DP≥23) 6% and xylooligosaccharides (XOS) 3%, the weight of green banana powder is 1.6g, the weight of corn arabinoxylan is 0.9g, the weight of low-ester citrus pectin is 0.5g, the weight of polydextrose is 0.7g, the weight of fructooligosaccharides (FOS) is 0.6g, the weight of oat beta-glucan is 0.25g, the weight of inulin (DP≥23) is 0.2g, and the weight of xylooligosaccharides (XOS) is 0.25g;

[0056] S2, preliminary mixing: all the weighed raw materials are placed in a high-speed mixer, the mixing temperature of the high-speed mixer is controlled at 15-30 DEG C, the heat-sensitive components are prevented from inactivation due to friction heating, preliminary mixing is carried out at a rotation speed of 800-1200 r / min under room temperature conditions, the time is controlled at 3-5 minutes, and the uniform dispersion of the raw materials is ensured;

[0057] S3, fine mixing: the material after preliminary mixing is transferred to a three-dimensional motion mixer, the filling rate in the three-dimensional motion mixer is controlled at 60-70%, so that the mixing efficiency is ensured and powder dusting is avoided, mixing is carried out under light-proof conditions for 10-15 minutes at a rotation speed of 200-300 r / min, so as to eliminate caking and improve uniformity;

[0058] S4, screening treatment: the uniformly mixed powder is screened through an 80-100 mesh screen to remove coarse particles, so that the fineness of the powder meets the requirements, the screening treatment is carried out in a clean environment with a humidity of less than 35%, and the moisture content of the powder after screening is controlled to be less than 3.0%;

[0059] S5, packaging: the screened compound probiotic powder is packaged into aluminum foil bags, food-grade deoxidizers are placed in the aluminum foil bags, nitrogen is used for replacement sealing after packaging, the net weight of each bag is 5 g, the bags are sealed and packaged in an environment with a relative humidity of less than or equal to 40%, and are stored in a cool and dry place.

[0060] Example 2

[0061] See Figure 1 , the application also provides a preparation method of the compound probiotic powder, which comprises the following steps:

[0062] S1, weighing raw materials: according to the weight ratio, 32% of green banana powder, 18% of corn arabinoxylan, 10% of low-ester citrus pectin, 14% of polydextrose, 12% of fructo-oligosaccharide (FOS), 5% of oat beta-glucan, 4% of inulin (DP≥23) and 5% of xylo-oligosaccharide (XOS) are weighed, the weight of the green banana powder is 1.6 g, the weight of the corn arabinoxylan is 0.9 g, the weight of the low-ester citrus pectin is 0.5 g, the weight of the polydextrose is 0.7 g, the weight of the fructo-oligosaccharide (FOS) is 0.6 g, the weight of the oat beta-glucan is 0.25 g, the weight of the inulin (DP≥23) is 0.2 g, and the weight of the xylo-oligosaccharide (XOS) is 0.25 g;

[0063] S2, preliminary mixing: all the weighed raw materials are placed in a high-speed mixer, the mixing temperature of the high-speed mixer is controlled at 15-30 DEG C, the heat-sensitive components are prevented from inactivation due to friction heating, preliminary mixing is carried out at a rotation speed of 800-1200 r / min under room temperature conditions, the time is controlled at 3-5 minutes, and the uniform dispersion of the raw materials is ensured;

[0064] S3, fine mixing: the preliminary mixed material is transferred to a three-dimensional motion mixer, the filling rate in the three-dimensional motion mixer is controlled at 60% to 70%, so as to ensure the mixing efficiency and avoid powder dusting, and mixing is carried out under light-proof conditions for 10 to 15 minutes at a rotating speed of 200 to 300 r / min, so as to eliminate caking and improve uniformity;

[0065] S4, screening treatment: the uniformly mixed powder is screened through an 80 to 100 mesh screen to remove coarse particles and ensure that the powder fineness meets the requirements, the screening treatment is carried out in a clean environment with a humidity of less than 35%, and the moisture content of the powder after screening is controlled to be less than 3.0%;

[0066] S5, packaging: the screened compound prebiotic powder is packaged into aluminum foil bags, food-grade deoxidizers are placed in the aluminum foil bags, nitrogen is used for replacement sealing after packaging, the net weight of each bag is 5g, the bags are sealed and packaged in an environment with a relative humidity of less than or equal to 40%, and are stored in a cool and dry place.

[0067] Example 3

[0068] Please refer to Figure 1 The application also provides a preparation method of the compound prebiotic powder, which comprises the following steps:

[0069] S1, weighing raw materials: according to the weight ratio, 25% of green banana powder, 20% of corn arabinoxylan, 15% of low-ester citrus pectin, 18% of polydextrose, 10% of fructo-oligosaccharide (FOS), 5% of oat beta-glucan, 3% of inulin (DP≥23) and 4% of xylo-oligosaccharide (XOS) are weighed, the weight of the green banana powder is 1.6g, the weight of the corn arabinoxylan is 0.9g, the weight of the low-ester citrus pectin is 0.5g, the weight of the polydextrose is 0.7g, the weight of the fructo-oligosaccharide (FOS) is 0.6g, the weight of the oat beta-glucan is 0.25g, the weight of the inulin (DP≥23) is 0.2g, and the weight of the xylo-oligosaccharide (XOS) is 0.25g;

[0070] S2, preliminary mixing: all the weighed raw materials are placed in a high-speed mixer, the mixing temperature of the high-speed mixer is controlled at 15 to 30 DEG C, so as to avoid the inactivation of heat-sensitive components due to friction heating, and preliminary mixing is carried out at a rotating speed of 800 to 1200 r / min under room temperature conditions for 3 to 5 minutes, so as to ensure uniform dispersion of the raw materials;

[0071] S3, fine mixing: the preliminary mixed material is transferred to a three-dimensional motion mixer, the filling rate in the three-dimensional motion mixer is controlled at 60% to 70%, so as to ensure the mixing efficiency and avoid powder dusting, and mixing is carried out under light-proof conditions for 10 to 15 minutes at a rotating speed of 200 to 300 r / min, so as to eliminate caking and improve uniformity;

[0072] S4, sieving treatment: the mixed powder is sieved through 80-100 mesh screen to remove coarse particles and ensure the fineness of the powder meets the requirements, the sieving treatment is carried out in a clean environment with humidity less than 35%, and the moisture content of the powder after sieving is controlled below 3.0%;

[0073] S5, packaging: the sieved compound prebiotic powder is packaged into aluminum foil bags, the aluminum foil bags are provided with food-grade deoxidizers, and the bags are sealed by nitrogen replacement after packaging, each bag weighs 5g, and the bags are sealed and stored in a cool and dry place under the condition of relative humidity ≤40%.

[0074] The above description of disclosed embodiments enables those skilled in the art to implement or use the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A compound prebiotic powder, characterized in that, The compound prebiotic powder is composed of the following mass ratio: Green banana powder (25-40%) is used to provide resistant starch (RS2) and high-fat pectin; 15-25% corn arabinoxylan is used to compensate for RS2 efficiency loss; Low-ester citrus pectin (5-15%) is used to supplement pectin deficiency and to target the Bacteroides succinic acid pathway. Polydextrose (10-18%) is used to maintain microbial diversity. Fructooligosaccharides (FOS) 8-15%, used to provide energy from acetic acid; Oat β-glucan 3-8% is used to activate Rosners; Inulin (DP≥23) 2-6%, used to retain long-chain sustained-release properties; Xylooligosaccharides (XOS) 3-7% are used to target Akkermansia.

2. The compound prebiotic powder according to claim 1, characterized in that, The compound prebiotic powder is composed of the following mass ratios: 40% green banana powder, 15% corn arabinoxylan, 5% low-ester citrus pectin, 15% polydextrose, 10% fructooligosaccharide (FOS), 6% oat β-glucan, 6% inulin (DP≥23) and 3% xylooligosaccharide (XOS).

3. The compound prebiotic powder according to claim 1, characterized in that, The compound prebiotic powder is composed of the following mass ratios: 32% green banana powder, 18% corn arabinoxylan, 10% low-ester citrus pectin, 14% polydextrose, 12% fructooligosaccharide (FOS), 5% oat β-glucan, 4% inulin (DP≥23) and 5% xylooligosaccharide (XOS).

4. The compound prebiotic powder according to claim 1, characterized in that, The compound prebiotic powder is composed of the following mass ratios: 25% green banana powder, 20% corn arabinoxylan, 15% low-ester citrus pectin, 18% polydextrose, 10% fructooligosaccharide (FOS), 5% oat β-glucan, 3% inulin (DP≥23) and 4% xylooligosaccharide (XOS).

5. The compound prebiotic powder according to claim 3, characterized in that, The raw materials are composed of the following mass ratios: 1.6g of green banana powder, 0.9g of corn arabinoxylan, 0.5g of low-ester citrus pectin, 0.7g of polydextrose, 0.6g of fructooligosaccharide (FOS), 0.25g of oat β-glucan, 0.2g of inulin (DP≥23), and 0.25g of xylooligosaccharide (XOS).

6. A method for preparing compound prebiotic powder according to any one of claims 1-5, characterized in that, The method includes the following steps: S1. Weigh the raw materials: Weigh out the following ingredients according to the weight ratio: green banana powder, corn arabinoxylan, low-ester citrus pectin, polydextrose, fructooligosaccharide (FOS), oat β-glucan, inulin (DP≥23) and xylooligosaccharide (XOS). S2. Preliminary mixing: Place all weighed raw materials in a high-speed mixer and perform preliminary mixing at room temperature with a speed of 800-1200 r / min for 3-5 minutes to ensure uniform dispersion of raw materials. S3. Fine mixing: Transfer the pre-mixed materials to a three-dimensional motion mixer and mix for 10 to 15 minutes under light-proof conditions at a speed of 200 to 300 r / min to eliminate lumps and improve uniformity. S4. Sieving: The uniformly mixed powder is sieved through an 80-100 mesh sieve to remove coarse particles and ensure that the fineness of the powder meets the requirements. S5. Packaging: The sieved compound prebiotic powder is packaged into aluminum foil bags, each with a net weight of 5g. The bags are sealed in an environment with a relative humidity of ≤40% and stored in a cool, dry place.

7. The method according to claim 6, characterized in that, The mixing temperature of the high-speed mixer is controlled between 15 and 30°C to prevent heat-sensitive components from becoming inactive due to frictional heating.

8. The method according to claim 6, characterized in that, The filling rate inside the three-dimensional motion mixer is controlled at 60% to 70% to ensure mixing efficiency and avoid powder dust.

9. The method according to claim 6, characterized in that, The sieving process is carried out in a clean environment with a humidity of less than 35%, and the moisture content of the powder after sieving is controlled below 3.0%.

10. The method according to claim 6, characterized in that, The aluminum foil bag contains a food-grade deoxidizer and is sealed with nitrogen after packaging.

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