CN117204573A - Composite prebiotic concentrate with effect of improving intestinal health and preparation method and application thereof - Google Patents

Composite prebiotic concentrate with effect of improving intestinal health and preparation method and application thereof Download PDF

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CN117204573A
CN117204573A CN202311297056.3A CN202311297056A CN117204573A CN 117204573 A CN117204573 A CN 117204573A CN 202311297056 A CN202311297056 A CN 202311297056A CN 117204573 A CN117204573 A CN 117204573A
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oligosaccharide
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CN117204573B (en
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严涛
李辉
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Hubei Time Seed Life Technology Co ltd
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Abstract

The invention discloses a composite prebiotic concentrate with an effect of improving intestinal health, and a preparation method and application thereof, wherein the composite prebiotic concentrate comprises the following components in parts by weight: 100 parts of water, 10-15 parts of inulin, 5-15 parts of fructo-oligosaccharide, 5-10 parts of galacto-oligosaccharide, 0.5-1.5 parts of xylo-oligosaccharide, 5-10 parts of lactitol, 2-5 parts of plant extract and 1-3 parts of resistant starch. The composite prebiotic concentrate can promote intestinal peristalsis by compounding various prebiotics, and simultaneously adds plant extracts and resistant starch, so that the bioavailability and stability of the prebiotics are improved, the adhesion and fixation of probiotics in intestinal tracts are facilitated, the intestinal microecological environment is improved, the abundance of beneficial bacteria such as bifidobacteria and lactobacillus in the intestinal tracts can be obviously improved through interaction among the raw materials, the abundance of bacteroides and enterococcus is reduced, and the intestinal immunity is further enhanced, so that the intestinal health is improved in all aspects.

Description

Composite prebiotic concentrate with effect of improving intestinal health and preparation method and application thereof
Technical Field
The invention belongs to the technical field of prebiotics, and particularly relates to a composite prebiotic concentrate with an effect of improving intestinal health, and a preparation method and application thereof.
Background
The intestinal tract is the largest digestive organ of human body, is an important place for digesting substances, absorbing nutrition and discharging metabolic waste, and is very important for maintaining normal metabolic function of human body. More than 500 bacteria inhabit in the intestinal tract of human body, and the number exceeds 10 15 Constitutes a huge micro-ecological system, and maintains the homeostasis of the internal environment through immune and metabolic pathways. Good intestinal status is important for the health function of the human body and for daily activities. In recent years, abdominal distension, abdominal pain, diarrhea and various enteritis diseases caused by unbalanced intestinal flora due to irregular work and rest time and poor eating habits are becoming more common, so that improving intestinal conditions and promoting body health by adjusting intestinal flora has become a research hotspot in the field of life science.
At present, two methods for regulating intestinal microecological environment exist, namely, probiotic bacteria supplementing. Normal intestinal flora, especially bifidobacteria, lactobacillus and the like, plays an important role in maintaining a good intestinal flora structure and body health, but live bacteria supplementing bacteria have a plurality of defects in the aspects of field planting force, live bacteria survival rate, transportation, preservation and the like; and secondly, the self proliferation of probiotics in the intestinal tract, namely the prebiotics and the supplementation of the probiotics. The physiological functions of the prebiotics are mainly realized by promoting the reproduction of beneficial bacteria in the intestines and regulating the microecological balance in the intestines, and are expressed in aspects of improving the intestinal functions, enhancing the immunity of organisms and the like.
Prebiotics are proposed on the basis of the concept of probiotics, and were first defined as "a non-digestible food ingredient that beneficially affects the host by selectively stimulating one or a limited number of bacteria already present in the colon, altering its growth and activity. With the innovation and upgrading of microorganism research tools (such as high-throughput sequencing), people have more comprehensive knowledge of the composition of microbial communities and more extensive and intensive research of prebiotics. The prebiotics can directly or indirectly act in the intestinal tract, and the application fields comprise food, cosmetics, livestock breeding and the like. The international prebiotic and prebiotic science association (ISAPP) of 2016 redefined prebiotics: substances that can be selectively utilized and transformed by the intestinal flora of the host under conditions conducive to the health of the host. Prebiotics in the new definition include non-carbohydrates, the site of action is not limited to the gastrointestinal tract, nor is its type limited to foods.
Although prebiotic products are commercially available, many products are formulated based on the physiological actions and effects of individual components, such as inulin, galactooligosaccharide, xylitol, mannooligosaccharide, dextran, etc., but single products have a significant limitation. Because of the unique individuality of the various oligosaccharides in the various oligosaccharide prebiotics, for example, the various oligosaccharides have different promotion effects and strengths on various probiotics; the inhibition ability to various harmful bacteria is different; in the same colon ecological environment, the fermentation time is different; the amount of gas produced during fermentation is different; the types and the amounts of the short chain fatty acids generated during fermentation and decomposition are different; the adhesion capacity in the large intestine wall is different; the fermentation activities of the various regions in the large intestine are different, and the like, so that the limitation of single prebiotic products is large.
Therefore, aiming at different types of prebiotics and different utilization degrees of the prebiotics by intestinal flora, a composite prebiotic product which has the flora optimizing function and is beneficial to adhesion and colonization of the probiotics in the intestinal tract is developed, so that the composite prebiotic product for promoting the health of the intestinal tract has great significance.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide the compound prebiotic concentrate with the effect of improving the intestinal health, and the preparation method and the application thereof.
In order to achieve the above purpose, the present invention provides the following technical solutions:
the composite prebiotic concentrate with the effect of improving intestinal health comprises the following components in parts by weight:
100 parts of water, 10-15 parts of inulin, 5-15 parts of fructo-oligosaccharide, 5-10 parts of galacto-oligosaccharide, 0.5-1.5 parts of xylo-oligosaccharide, 5-10 parts of lactitol, 2-5 parts of plant extract and 1-3 parts of resistant starch.
Inulin, as a natural soluble dietary fiber, is hardly hydrolyzed and digested by gastric acid, but is fermented by a large amount of beneficial microorganisms in the colon, thus having various health functions such as regulating blood glucose, not causing blood glucose fluctuations, not affecting blood glucose level and insulin content in blood, improving intestinal function, promoting mineral absorption, etc.
The fructo-oligosaccharide is a non-reducing sugar, is a functional oligosaccharide such as kestose, kestose and kestose which are formed by combining 1-3 fructosyl groups with the fructosyl groups in sucrose through beta (2-1) glycosidic bonds, has a polymerization degree of 2-9, is a natural active ingredient, and is also an excellent water-soluble dietary fiber. Fructo-oligosaccharides are well-known bifidus factors, and can be subjected to glycolysis by beneficial bacteria such as bifidobacteria, and are partially converted into short-chain fatty acids (mainly acetic acid, propionic acid and butyric acid) and a small amount of gas, so that the fructo-oligosaccharides are beneficial to the health of a host.
The galactooligosaccharide is a novel functional substance, is a functional oligosaccharide with natural properties, has good palatability, water solubility and stability, can proliferate probiotics, especially bifidobacteria in human intestinal tracts after entering human bodies, and can inhibit the growth of putrefying bacteria. Has outstanding advantages in improving the quantity of bifidobacteria, reducing the quantity of clostridium, producing lactic acid and producing less gas, and has physiological functions of adjusting the balance of intestinal flora, having low caloric value, promoting mineral absorption, promoting the discharge of toxic metabolites and the like for human bodies. In addition, probiotics in the intestinal tract can generate a large amount of extracellular polysaccharide while utilizing galacto-oligosaccharide for proliferation, and the extracellular polysaccharide not only has anti-tumor activity and immune activity, but also can promote the long-term colonization of the probiotics in the intestinal tract.
Xylo-oligosaccharide is a functional polymeric sugar, which is formed by combining 2-7 xylose molecules with beta-1, 4 glycosidic bonds, and is also called as xylo-oligosaccharide. The xylo-oligosaccharide is hardly decomposed by enzyme system in human digestive tract, and has low heat quantity, but can directly enter large intestine, and can be utilized by microorganism in intestinal tract to promote proliferation of probiotics such as bifidobacterium and lactobacillus. In addition, the fermentation products of the xylo-oligosaccharide such as lactic acid, acetic acid, propionic acid, butyric acid and the like can acidify the intestinal environment, on one hand, can promote the intestinal function, influence the absorption of internal lipid and mineral substances and prevent colon cancer; on the other hand, the low pH intestinal environment can inhibit the growth of clostridium, bacteroides and other conditional pathogenic bacteria, reduce the formation of toxic metabolites (such as amine), reduce the burden on liver and protect liver. Meanwhile, the xylo-oligosaccharide also has the physiological functions of preventing constipation, reducing serum cholesterol, improving the immunity of organisms and the like.
Lactitol, also known as lactitol, is a sweetener, the chemical nature of which is 4-O-beta-D-galactopyranose-D-sorbitol, and is a disaccharide alcohol obtained by reduction of lactose. Numerous studies have shown that lactitol is capable of significantly promoting the growth of intestinal beneficial bacteria, but is not utilized by harmful bacteria and can be categorized as a prebiotic. Meanwhile, lactitol is not absorbed by the small intestine basically, so that the lactitol reaches the large intestine and is fermented by microorganisms in the intestinal tract to generate short-chain fatty acids (lactic acid, acetic acid, propionic acid, butyric acid and the like), the acidity of the intestinal tract is reduced, and the intestinal tract peristalsis is stimulated; the transport rate of the colon is positively correlated with the dosage of lactitol, since lactitol increases intraluminal water retention and intestinal peristalsis, thereby causing an increase in the volume of excretions, increasing the rate of excretion, and promoting defecation.
Preferably, the compound prebiotic concentrate with the effect of improving intestinal health comprises the following components in parts by weight: 100 parts of water, 10-13 parts of inulin, 8-15 parts of fructo-oligosaccharide, 7-10 parts of galacto-oligosaccharide, 0.7-1.3 parts of xylo-oligosaccharide, 5-8 parts of lactitol, 2-4 parts of plant extract and 2-3 parts of resistant starch.
Preferably, the compound prebiotic concentrate with the effect of improving intestinal health comprises the following components in parts by weight: 100 parts of water, 12-13 parts of inulin, 10-13 parts of fructo-oligosaccharide, 7-9 parts of galacto-oligosaccharide, 0.9-1.1 parts of xylo-oligosaccharide, 6-7 parts of lactitol, 3-4 parts of plant extract and 2-3 parts of resistant starch.
Preferably, the preparation method of the plant extract comprises the following steps: respectively mashing tamarind kernel, fructus Lycii and okra, adding into distilled water, soaking at 20-30deg.C for 1-2 hr, adding citric acid, extracting with water, filtering to obtain filtrate, adding lactoferrin into the filtrate, stirring, ultrasonic treating, irradiating, concentrating under reduced pressure, and drying to obtain the plant extract.
The tamarind seed contains rich polysaccharide components, the polysaccharide content is up to 50%, the tamarind seed is one of main components in the seed, and the tamarind seed has the characteristics of good thickening property, acid and alkali resistance, heat resistance, biocompatibility, intestinal flora regulation and the like, has the functions of preventing constipation, improving intestinal flora and playing intestinal immunity.
The wolfberry polysaccharide is a compound polysaccharide which is mainly composed of acid heteropolysaccharide and polypeptide or protein and composed of rhamnose, arabinose, xylose, mannose, galactose, glucose and galacturonic acid, and also contains neutral heteropolysaccharide and compound polysaccharide composed of glucan and polypeptide or protein, and the wolfberry polysaccharide can change microbial communities after 24 hours of fermentation, so that the production of short chain fatty acid is obviously promoted, and the relative abundance of bacteroides, bifidobacteria, lactobacillus, clostridium, pralidoxime and Ke Linzao is improved.
The mucopolysaccharide rich in okra forms a stable polysaccharide protective film on the gastrointestinal wall to prevent gastric acid corrosion, so that the effects of protecting gastrointestinal mucosa and repairing ulcers are achieved, the abundant polysaccharide can obviously improve the abundance of bifidobacteria and lactobacillus in the intestinal tract, reduce the abundance of bacteroides and enterococcus and is beneficial to the field planting and proliferation of beneficial bacteria groups, and the intestinal health is improved.
Preferably, the mass ratio of tamarind kernel to wolfberry fruit to okra to distilled water to citric acid is 40-60:30-40:10-20:1200-1800:0.4-0.8, and the mass ratio of filtrate to lactoferrin is 100:3-6.
Preferably, the temperature of the water extraction is 80-90 ℃ and the time is 2-3 hours; the power of the ultrasonic treatment is 300-400W, and the time is 20-30min; the irradiation treatment comprises the following steps: the dose is 5-8kGy through gamma ray irradiation.
Preferably, the preparation method of the resistant starch comprises the following steps:
adding 100 parts of fresh chickpeas into 500 parts of distilled water, crushing, sieving with a 100-mesh sieve, standing filtrate, precipitating for 10 hours, removing supernatant, cleaning lower-layer precipitate, standing for 8 hours, removing supernatant, cleaning the surface of the lower-layer precipitate, and then placing in a 50 ℃ oven to dry until the water content is less than 10 percent; adding 100 parts of chickpea starch into 500 parts of distilled water, stirring to obtain starch emulsion, then carrying out microwave treatment on the starch emulsion with the microwave treatment power of 600-700W for 100-150s, cooling after the treatment is finished, refrigerating for 12h at 4 ℃, drying at 50 ℃, crushing, sieving and purifying to obtain the resistant starch.
Chickpea is rich in carbohydrate, protein, vitamin and other nutrients, is a high-quality vegetable food source, and starch is the most main carbohydrate in chickpea, and the content of the starch is up to 40% -60%. The chickpea starch contains higher resistant starch, and the resistant starch has the effects of regulating the composition of intestinal flora, promoting the growth of beneficial intestinal bacteria, promoting the generation of short-chain fatty acid in intestinal tracts, preventing brain cancer and colonitis, and improving the health of intestinal tracts.
The invention also provides a preparation method of the composite prebiotic concentrate with the effect of improving intestinal health, which comprises the following steps of:
weighing water, inulin, fructo-oligosaccharide, galacto-oligosaccharide, xylo-oligosaccharide, lactitol, plant extract and resistant starch according to a formula, mixing, stirring uniformly, concentrating under reduced pressure to 1/2 of the original volume, packaging, and sterilizing.
The invention also protects the application of the composite prebiotic concentrate with the effect of improving intestinal health in the functional food or beverage with the effect of intestinal health.
Compared with the prior art, the invention has the following beneficial effects:
(1) According to the composite prebiotic concentrate with the effect of improving intestinal health, disclosed by the invention, by compounding a plurality of prebiotics, intestinal peristalsis can be promoted, and simultaneously, the plant extract and resistant starch are added, so that the bioavailability and stability of the prebiotics are improved, adhesion and field planting of the prebiotics in intestinal tracts are also facilitated, the intestinal microecological environment is improved, the abundance of beneficial bacteria such as bifidobacteria and lactobacillus in the intestinal tracts can be obviously improved through interaction among the raw materials, the abundance of bacteroides and enterococcus is reduced, and further, the intestinal immunity is enhanced, so that the intestinal health is improved in all aspects.
(2) According to the composite prebiotic concentrate with the effect of improving intestinal health, tamarind kernels, medlar and okra are taken as raw materials in the added plant extract, polysaccharide in the plant is extracted by a hot water extraction method, and citric acid is added in the extraction process, so that the extraction rate of plant polysaccharide can be improved, and on the other hand, the tamarind polysaccharide solution is too high in viscosity and is not suitable for direct use, and the molecular weight of the tamarind polysaccharide can be reduced, the branching degree is reduced, and the solution viscosity is reduced through extraction under an acidic condition; then lactoferrin is added, and then the polysaccharide molecular chain in the plant extract is degraded by ultrasonic and irradiation treatment, the molecular mass is reduced in a gradient way, the molecular mass distribution is widened, and ultrasonic vibration energy cuts off certain chemical bonds in the polysaccharide, so that the molecular weight of the polysaccharide is reduced and the water solubility is increased; the added lactoferrin can form a soluble compound with polysaccharide in the plant extract through a non-covalent bond, so that the plant extract has stronger stability and bioactivity, meanwhile, the polysaccharide in the plant extract also obviously enhances the stability of the lactoferrin under the thermal condition, reduces the change of the lactoferrin in the subsequent decompression concentration process of the prebiotic concentrated solution, and finally improves the bioactivity and the utilization rate of the prebiotic concentrated solution, and on the other hand, the lactoferrin can also effectively inhibit the growth of bacteria such as escherichia coli, salmonella typhi, streptococcus, legionella pneumophila and the like, reduce the infection of gastrointestinal bacteria, does not influence the growth of lactobacillus and bifidobacterium, and is beneficial to improving the intestinal microecological environment.
(3) The polysaccharide in the plant extract interacts with flora in the intestinal tract to increase the content of short-chain fatty acid, inhibit the growth of pathogenic bacteria escherichia and multiranus, and promote the proliferation of beneficial bacteria lactobacillus, parabacteroides, praecox and fecal bacillus together with inulin, fructo-oligosaccharide, galacto-oligosaccharide, xylo-oligosaccharide and lactitol; in addition, the matrimony vine polysaccharide and okra polysaccharide can improve the adhesion rate of beneficial bacteria in intestinal tracts, repel the adhesion and invasion of pathogenic bacteria to normal cells, and adjust the balance of intestinal flora; through adding chickpea resistant starch, the resistant starch can evade the digestion of small intestine, and after fermentation, the resistant starch can promote the discharge of harmful substances in the intestine, promote the health of the intestine, and bifidobacteria in the colon can utilize the resistant starch and adhere to resistant starch particles, so that the resistance of the chickpea resistant starch to low pH value is improved, the proliferation of bifidobacteria in the intestine is promoted, and the health of the intestine is further promoted.
Detailed Description
The technical solutions of the present invention will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
A composite prebiotic concentrate with improved intestinal health comprising the following components: 1kg of water, 120g of inulin, 120g of fructo-oligosaccharide, 80g of galacto-oligosaccharide, 10g of xylo-oligosaccharide, 70g of lactitol, 35g of plant extract and 20g of resistant starch.
The preparation method of the plant extract comprises the following steps: respectively smashing 50g of tamarind kernels, 30g of medlar and 20g of okra, adding into 1500g of distilled water, soaking for 1.5h at 25 ℃, then adding 0.6g of citric acid, extracting with water at 85 ℃ for 2.5h, filtering after the water extraction is finished to obtain filtrate, then adding 5g of lactoferrin into 100g of filtrate, uniformly stirring, performing ultrasonic treatment with the power of 350W for 25min, and then performing irradiation treatment, wherein the irradiation treatment is as follows: and (3) performing gamma-ray irradiation with the dosage of 7kGy, concentrating under reduced pressure after the irradiation is finished, and drying to obtain the plant extract.
The preparation method of the resistant starch comprises the following steps:
adding 100g of fresh chickpea into 500g of distilled water, crushing, sieving with a 100-mesh sieve, standing filtrate, precipitating for 10h, removing supernatant, cleaning lower precipitate, standing for 8h, removing supernatant, cleaning the surface of lower precipitate, and drying in a 50 ℃ oven until the water content is less than 10%, wherein chickpea starch is obtained; adding 100g of chickpea starch into 500g of distilled water, stirring to obtain starch emulsion, then carrying out microwave treatment on the starch emulsion with the microwave treatment power of 650W for 130s, cooling after the treatment is finished, refrigerating at 4 ℃ for 12h, drying at 50 ℃, crushing, sieving and purifying to obtain the resistant starch.
A preparation method of a composite prebiotic concentrate with the effect of improving intestinal health comprises the following steps:
weighing water, inulin, fructo-oligosaccharide, galacto-oligosaccharide, xylo-oligosaccharide, lactitol, plant extract and resistant starch according to a formula, mixing, stirring uniformly, concentrating under reduced pressure to 1/2 of the original volume, packaging, and sterilizing.
Example 2
A composite prebiotic concentrate with improved intestinal health comprising the following components: 1kg of water, 100g of inulin, 150g of fructo-oligosaccharide, 100g of galacto-oligosaccharide, 5g of xylo-oligosaccharide, 50g of lactitol, 20g of plant extract and 30g of resistant starch.
The preparation method of the plant extract comprises the following steps: respectively smashing 40g of tamarind kernels, 40g of medlar and 20g of okra, adding into 1200 distilled water, soaking for 2 hours at 20 ℃, then adding 0.4g of citric acid, extracting with water at 80 ℃ for 3 hours, filtering after the water extraction is finished to obtain filtrate, then adding 3g of lactoferrin into 100g of filtrate, uniformly stirring, carrying out ultrasonic treatment with the power of 300W for 30 minutes, and then carrying out irradiation treatment, wherein the irradiation treatment is as follows: and (3) performing gamma-ray irradiation with the dosage of 5kGy, concentrating under reduced pressure after the irradiation is finished, and drying to obtain the plant extract.
The preparation method of the resistant starch comprises the following steps:
adding 100g of fresh chickpea into 500g of distilled water, crushing, sieving with a 100-mesh sieve, standing filtrate, precipitating for 10h, removing supernatant, cleaning lower precipitate, standing for 8h, removing supernatant, cleaning the surface of lower precipitate, and drying in a 50 ℃ oven until the water content is less than 10%, wherein chickpea starch is obtained; adding 100g of chickpea starch into 500g of distilled water, stirring to obtain starch emulsion, then carrying out microwave treatment on the starch emulsion with the microwave treatment power of 600W for 150s, cooling after the treatment is finished, refrigerating at 4 ℃ for 12h, drying at 50 ℃, crushing, sieving and purifying to obtain the resistant starch.
A preparation method of a composite prebiotic concentrate with the effect of improving intestinal health comprises the following steps:
weighing water, inulin, fructo-oligosaccharide, galacto-oligosaccharide, xylo-oligosaccharide, lactitol, plant extract and resistant starch according to a formula, mixing, stirring uniformly, concentrating under reduced pressure to 1/2 of the original volume, packaging, and sterilizing.
Example 3
A composite prebiotic concentrate with improved intestinal health comprising the following components: 1kg of water, 150g of inulin, 100g of fructo-oligosaccharide, 50g of galacto-oligosaccharide, 15g of xylo-oligosaccharide, 100g of lactitol, 50g of plant extract and 10g of resistant starch.
The preparation method of the plant extract comprises the following steps: respectively smashing 60g of tamarind kernels, 30g of medlar and 10g of okra, adding 1800g of distilled water, soaking for 1h at 30 ℃, then adding 0.8g of citric acid, extracting with water at 90 ℃ for 2h, filtering after the water extraction is finished to obtain filtrate, then adding 6g of lactoferrin into 100g of filtrate, uniformly stirring, carrying out ultrasonic treatment with the power of 400W for 20min, and then carrying out irradiation treatment, wherein the irradiation treatment is as follows: and (3) performing gamma-ray irradiation with the dosage of 8kGy, concentrating under reduced pressure after the irradiation is finished, and drying to obtain the plant extract.
The preparation method of the resistant starch comprises the following steps:
adding 100g of fresh chickpea into 500g of distilled water, crushing, sieving with a 100-mesh sieve, standing filtrate, precipitating for 10h, removing supernatant, cleaning lower precipitate, standing for 8h, removing supernatant, cleaning the surface of lower precipitate, and drying in a 50 ℃ oven until the water content is less than 10%, wherein chickpea starch is obtained; adding 100g of chickpea starch into 500g of distilled water, stirring to obtain starch emulsion, then carrying out microwave treatment on the starch emulsion with the microwave treatment power of 700W for 100s, cooling after the treatment is finished, refrigerating at 4 ℃ for 12h, drying at 50 ℃, crushing, sieving and purifying to obtain the resistant starch.
A preparation method of a composite prebiotic concentrate with the effect of improving intestinal health comprises the following steps:
weighing water, inulin, fructo-oligosaccharide, galacto-oligosaccharide, xylo-oligosaccharide, lactitol, plant extract and resistant starch according to a formula, mixing, stirring uniformly, concentrating under reduced pressure to 1/2 of the original volume, packaging, and sterilizing.
Comparative example 1
A composite prebiotic concentrate with improved intestinal health comprising the following components: 1kg of water, 120g of inulin, 120g of fructo-oligosaccharide, 80g of galacto-oligosaccharide, 10g of xylo-oligosaccharide, 70g of lactitol and 20g of resistant starch.
The preparation method of the resistant starch comprises the following steps:
adding 100g of fresh chickpea into 500g of distilled water, crushing, sieving with a 100-mesh sieve, standing filtrate, precipitating for 10h, removing supernatant, cleaning lower precipitate, standing for 8h, removing supernatant, cleaning the surface of lower precipitate, and drying in a 50 ℃ oven until the water content is less than 10%, wherein chickpea starch is obtained; adding 100g of chickpea starch into 500g of distilled water, stirring to obtain starch emulsion, then carrying out microwave treatment on the starch emulsion with the microwave treatment power of 650W for 130s, cooling after the treatment is finished, refrigerating at 4 ℃ for 12h, drying at 50 ℃, crushing, sieving and purifying to obtain the resistant starch.
A preparation method of a composite prebiotic concentrate with the effect of improving intestinal health comprises the following steps:
weighing water, inulin, fructo-oligosaccharide, galacto-oligosaccharide, xylo-oligosaccharide, lactitol and resistant starch according to a formula, mixing, stirring uniformly, concentrating under reduced pressure to 1/2 of the original volume, filling, and sterilizing.
Comparative example 2
A composite prebiotic concentrate with improved intestinal health comprising the following components: 1kg of water, 120g of inulin, 120g of fructo-oligosaccharide, 80g of galacto-oligosaccharide, 10g of xylo-oligosaccharide, 70g of lactitol and 35g of plant extract.
The preparation method of the plant extract comprises the following steps: respectively smashing 50g of tamarind kernels, 30g of medlar and 20g of okra, adding into 1500g of distilled water, soaking for 1.5h at 25 ℃, then adding 0.6g of citric acid, extracting with water at 85 ℃ for 2.5h, filtering after the water extraction is finished to obtain filtrate, then adding 5g of lactoferrin into 100g of filtrate, uniformly stirring, performing ultrasonic treatment with the power of 350W for 25min, and then performing irradiation treatment, wherein the irradiation treatment is as follows: and (3) performing gamma-ray irradiation with the dosage of 7kGy, concentrating under reduced pressure after the irradiation is finished, and drying to obtain the plant extract.
A preparation method of a composite prebiotic concentrate with the effect of improving intestinal health comprises the following steps:
weighing water, inulin, fructo-oligosaccharide, galacto-oligosaccharide, xylo-oligosaccharide, lactitol and plant extract according to the formula, mixing, stirring uniformly, concentrating under reduced pressure to 1/2 of the original volume, packaging, and sterilizing.
The compound prebiotic concentrates prepared in examples 1-3 and comparative examples 1-2 were added to fruit juice beverages at an addition level of 10wt% respectively to obtain fruit juice beverages with intestinal tract health function, and the effect on intestinal tract function was tested.
140 Kunming mice were selected, each half of the male and female mice were randomly allocated to 7 groups of 20 mice each, which were respectively a blank group, a model control group, an example 1 group, an example 2 group, an example 3 group, a comparative example 1 group, and a comparative example 2 group, and each group was filled with loperamide hydrochloride 10mg/kg·bw for 1 time/d except the blank group, and was continuously filled with stomach for 7d, and all mice were fed with water and free to drink food, thereby establishing a constipation model. The prepared functional juice drink for intestinal health care is respectively infused into the stomach of mice, and the blank group and the model control group are infused with equal volumes of physiological saline, 0.3mL of the normal saline is infused into the stomach each day, the stomach is continuously infused for 14 days, and all the mice drink water and eat. After 14 days, each group of mice is fasted without water for 12 hours; then, each group was subjected to the last gastric lavage, after 1h of gastric lavage administration, activated carbon was administered after 30min, mice were sacrificed after 15min of dislocation, the intestinal membranes were opened for separation, small intestines were cut off, the carbon powder advancing distance was measured, and the small intestine advancing rate (%) was calculated.
Advancement (%) = activated charcoal advancement length (cm)/total small intestine length (cm) ×100%
TABLE 1 results of small intestine propulsion experiments
As can be seen from the above Table 1, the model control group has significantly lower intestinal propulsive rate than that of the blank group, which indicates that the constipation model is successful, and meanwhile, the composite prebiotic concentrate (example 1-3 group) prepared by the invention has significantly higher intestinal propulsive rate than that of the comparative example 1 group, the comparative example 2 group and the model control group, which indicates that the composite prebiotic concentrate can effectively promote gastrointestinal motility and accelerate fecal discharge.
The composite prebiotic concentrates with improved intestinal health prepared in example 1 and comparative examples 1-2 were tested for bifidobacterium adhesion and the concentrates were formulated as 5wt% composite prebiotic solutions for use.
Culturing Bifidobacterium (Bifidobacterium adolescentis JCM 1275, collection number: CGMCC 1.2190) in MRS culture medium at 37deg.C for 22 hr to logarithmic phase, centrifuging the bacterial suspension in centrifuge, collecting bacterial cells, washing with PBS buffer solution with pH of 7.3 for 2 times, removing supernatant, adding MEM basic culture solution into bacterial mud, and diluting the bacterial suspension to 5.0X10 9 CFU/mL was ready for use. A sterile coverslip was placed in each well of a six-well petri dish and then 2mL of Caco-2 cell suspension (1X 10) 5 CFU/mL), and placed in a carbon dioxide incubator at 37 ℃ with a relative humidity of 98%. Culturing Caco-2 cells for about 48h until the cell density reaches 80%, discarding the culture solution, washing the Caco-2 cell layer with MEM basal culture solution to remove serum and antibody, repeating twice, and discarding the culture solution.
The bifidobacterium suspension prepared above (5.0X10) was added to a six-well dish 9 CFU/mL), 2mL per well, and 1mL of the 5wt% complex prebiotic solution prepared above was added per well, marked. Placing six-hole culture dish containing bacterial suspension and 5wt% composite prebiotic solution Caco-2 cells at 37deg.C for co-culturing for 4 hr, discarding culture solution, and using pH to obtain the final productThe cell layer was washed with PBS buffer 7.3 and repeated three times. Cells adhered to the Caco-2 cell layer were fixed with 4% paraformaldehyde for 20min. The coverslip in the six-well petri dish was removed, placed on a slide, and gram stained. Finally, the bifidobacterium cells adhered to the Caco-2 cells were counted under a microscope, the number of bifidobacteria adhered to each Caco-2 cell (CFU/cell) was calculated, and the average value was calculated as the cell adhesion rate of the bifidobacterium, and the test results were shown in Table 2 below.
TABLE 2
Adhesion Rate/(CFU/cell)
Example 1 16±3.4
Comparative example 1 9±1.8
Comparative example 2 11±2.3
As can be seen from table 2, the composite prebiotic concentrate with improved intestinal health prepared by the invention can promote the adhesion rate of bifidobacteria to Caco-2 cells, is beneficial to the colonization of bifidobacteria in the intestinal tract, and can compete with harmful bacteria for adhesion sites after the bifidobacteria are adhered, thereby improving the abundance of intestinal flora and generating nutrients to inhibit pathogens, and further improving the intestinal health.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. The composite prebiotic concentrate with the effect of improving intestinal health is characterized by comprising the following components in parts by weight:
100 parts of water, 10-15 parts of inulin, 5-15 parts of fructo-oligosaccharide, 5-10 parts of galacto-oligosaccharide, 0.5-1.5 parts of xylo-oligosaccharide, 5-10 parts of lactitol, 2-5 parts of plant extract and 1-3 parts of resistant starch.
2. The complex prebiotic concentrate with improved intestinal health of claim 1, comprising the following components in parts by weight: 100 parts of water, 10-13 parts of inulin, 8-15 parts of fructo-oligosaccharide, 7-10 parts of galacto-oligosaccharide, 0.7-1.3 parts of xylo-oligosaccharide, 5-8 parts of lactitol, 2-4 parts of plant extract and 2-3 parts of resistant starch.
3. The complex prebiotic concentrate with improved intestinal health of claim 1, comprising the following components in parts by weight: 100 parts of water, 12-13 parts of inulin, 10-13 parts of fructo-oligosaccharide, 7-9 parts of galacto-oligosaccharide, 0.9-1.1 parts of xylo-oligosaccharide, 6-7 parts of lactitol, 3-4 parts of plant extract and 2-3 parts of resistant starch.
4. The complex prebiotic concentrate with improved intestinal health of claim 1 wherein the plant extract is prepared by the process of: respectively mashing tamarind kernel, fructus Lycii and okra, adding into distilled water, soaking at 20-30deg.C for 1-2 hr, adding citric acid, extracting with water, filtering to obtain filtrate, adding lactoferrin into the filtrate, stirring, ultrasonic treating, irradiating, concentrating under reduced pressure, and drying to obtain the plant extract.
5. The compound prebiotic concentrate with improved intestinal health according to claim 4, wherein the mass ratio of tamarind seed kernel, wolfberry fruit, okra, distilled water and citric acid is 40-60:30-40:10-20:1200-1800:0.4-0.8, and the mass ratio of filtrate and lactoferrin is 100:3-6.
6. The complex prebiotic concentrate of claim 4 wherein the temperature of the aqueous extract is 80-90 ℃ for 2-3 hours; the power of the ultrasonic treatment is 300-400W, and the time is 20-30min; the irradiation treatment comprises the following steps: the dose is 5-8kGy through gamma ray irradiation.
7. A complex prebiotic concentrate with improved intestinal health as defined in claim 1 wherein the resistant starch is prepared by the process of:
adding 100 parts of fresh chickpeas into 500 parts of distilled water, crushing, sieving with a 100-mesh sieve, standing filtrate, precipitating for 10 hours, removing supernatant, cleaning lower-layer precipitate, standing for 8 hours, removing supernatant, cleaning the surface of the lower-layer precipitate, and then placing in a 50 ℃ oven to dry until the water content is less than 10 percent; adding 100 parts of chickpea starch into 500 parts of distilled water, stirring to obtain starch emulsion, then carrying out microwave treatment on the starch emulsion, cooling after the treatment is finished, refrigerating for 12 hours at 4 ℃, drying at 50 ℃, and obtaining the resistant starch after crushing, sieving and purifying.
8. The complex prebiotic concentrate of claim 7 wherein the microwave treatment has a power of 600W to 700W for a period of 100s to 150s.
9. A method of preparing a complex prebiotic concentrate of any of claims 1-8 having improved intestinal health comprising the steps of:
weighing water, inulin, fructo-oligosaccharide, galacto-oligosaccharide, xylo-oligosaccharide, lactitol, plant extract and resistant starch according to a formula, mixing, stirring uniformly, concentrating under reduced pressure to 1/2 of the original volume, packaging, and sterilizing.
10. Use of a complex prebiotic concentrate according to any of claims 1-8 in a functional food or beverage for the health care of the intestinal tract.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5840361A (en) * 1997-04-09 1998-11-24 Beech-Nut Nutrition Corporation Fructan-containing baby food compositions and methods therefor
CN109718289A (en) * 2019-01-07 2019-05-07 云浮市新金山生物科技股份有限公司 A kind of galactooligosaccharide prebiotic compositions treating or preventing enterogastric diseases
CN111227261A (en) * 2020-01-21 2020-06-05 广东量子高科微生态医疗有限公司 Prebiotic composition and application thereof
CN114794189A (en) * 2022-05-23 2022-07-29 江南大学 Low-starch digestible chickpea biscuit and preparation method thereof
CN116784442A (en) * 2023-07-17 2023-09-22 湖北时间种子生命科技有限公司 Prebiotic western Mei Qianwei fruit drink with intestinal health improving function and preparation method thereof

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5840361A (en) * 1997-04-09 1998-11-24 Beech-Nut Nutrition Corporation Fructan-containing baby food compositions and methods therefor
CN109718289A (en) * 2019-01-07 2019-05-07 云浮市新金山生物科技股份有限公司 A kind of galactooligosaccharide prebiotic compositions treating or preventing enterogastric diseases
CN111227261A (en) * 2020-01-21 2020-06-05 广东量子高科微生态医疗有限公司 Prebiotic composition and application thereof
CN114794189A (en) * 2022-05-23 2022-07-29 江南大学 Low-starch digestible chickpea biscuit and preparation method thereof
CN116784442A (en) * 2023-07-17 2023-09-22 湖北时间种子生命科技有限公司 Prebiotic western Mei Qianwei fruit drink with intestinal health improving function and preparation method thereof

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