CN112971146B - Composition and food for improving bone health and application - Google Patents

Composition and food for improving bone health and application Download PDF

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Publication number
CN112971146B
CN112971146B CN202110237626.4A CN202110237626A CN112971146B CN 112971146 B CN112971146 B CN 112971146B CN 202110237626 A CN202110237626 A CN 202110237626A CN 112971146 B CN112971146 B CN 112971146B
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calcium
bone
composition
polydextrose
vitamin
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CN112971146A (en
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段素芳
司徒文佑
赵子夫
郝婧宇
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Inner Mongolia Yili Industrial Group Co Ltd
Inner Mongolia Dairy Technology Research Institute Co Ltd
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Inner Mongolia Yili Industrial Group Co Ltd
Inner Mongolia Dairy Technology Research Institute Co Ltd
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    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/10Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
    • A23L33/16Inorganic salts, minerals or trace elements
    • 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
    • A23C9/152Milk preparations; Milk powder or milk powder preparations containing additives
    • A23C9/1522Inorganic additives, e.g. minerals, trace elements; Chlorination or fluoridation of milk; Organic salts or complexes of metals other than natrium or kalium; Calcium enrichment of milk
    • 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
    • A23C9/152Milk preparations; Milk powder or milk powder preparations containing additives
    • A23C9/156Flavoured milk preparations ; Addition of fruits, vegetables, sugars, sugar alcohols or sweeteners
    • 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
    • A23C9/152Milk preparations; Milk powder or milk powder preparations containing additives
    • A23C9/158Milk preparations; Milk powder or milk powder preparations containing additives containing vitamins or antibiotics
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K20/00Accessory food factors for animal feeding-stuffs
    • A23K20/10Organic substances
    • A23K20/163Sugars; Polysaccharides
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K20/00Accessory food factors for animal feeding-stuffs
    • A23K20/10Organic substances
    • A23K20/174Vitamins
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23KFODDER
    • A23K20/00Accessory food factors for animal feeding-stuffs
    • A23K20/20Inorganic substances, e.g. oligoelements
    • A23K20/24Compounds of alkaline earth metals, e.g. magnesium
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/10Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof using additives
    • A23L33/15Vitamins
    • A23L33/155Vitamins A or D
    • AHUMAN NECESSITIES
    • A23FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23LFOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
    • A23L33/00Modifying nutritive qualities of foods; Dietetic products; Preparation or treatment thereof
    • A23L33/20Reducing nutritive value; Dietetic products with reduced nutritive value
    • A23L33/21Addition of substantially indigestible substances, e.g. dietary fibres
    • 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
    • A23V2002/00Food compositions, function of food ingredients or processes for food or foodstuffs

Abstract

The invention provides a composition for improving bone health, food and application. The composition comprises the following raw material components: the calcium supplement comprises a calcium source, vitamin D and prebiotics, wherein the prebiotics comprise polydextrose and galactooligosaccharides, and the weight ratio of the polydextrose to the galactooligosaccharides is (1-15) to 1. The composition realizes the technical effects of obvious gradual synergy in the aspects of improving the bone density, the bone calcium content and the bone microstructure of animals with insufficient calcium intake in the growth period and other growth stages.

Description

Composition and food for improving bone health and application
Technical Field
The invention belongs to the technical field of nutritional supplements, and particularly relates to a composition for improving bone health, food and application.
Background
The effect of calcium and vitamin D on promoting bone health is brought into the national GB28050 food safety standard, and the calcium and vitamin D are bone-strengthening elements with sufficient evidence, and the further remarkable improvement effect on the basis of calcium and vitamin D is very difficult to achieve. At present, the situation that the intake of calcium and vitamin D is seriously insufficient in the dietary pattern of children in China exists. In addition, the average calcium intake of other people with calcium malnutrition, such as middle-aged and old people in 50-64 years and 65 years in China is 415mg and 409mg, and the RNI value of calcium of people in the age group is 1000mg, which means that the calcium intake only reaches about 1/3 of the required amount, namely, the calcium intake is seriously insufficient. Therefore, there is a need to develop a new product capable of significantly improving bone health.
Disclosure of Invention
The invention aims to provide a composition for improving bone health, which realizes the technical effects of remarkably increasing the bone density, the bone calcium content and the bone microstructure of animals with insufficient calcium intake in growth stages and other growth stages.
It is a further object of the present invention to provide a food product comprising the above composition.
It is another object of the present invention to provide the use of the above composition or food product for improving one or more of bone density, bone calcium content and bone microstructure in an animal.
According to one aspect of the present invention, there is provided a composition for improving bone health, the composition comprising the raw material components: the calcium supplement comprises a calcium source, vitamin D and prebiotics, wherein the prebiotics comprise polydextrose and galactooligosaccharides, and the polydextrose and the galactooligosaccharides are in a weight ratio of (1-15): 1.
according to one aspect of the invention, the weight ratio of the polydextrose to the galactooligosaccharide is (3-6): 1.
preferably, the composition comprises the following nutritional ingredients in parts by weight: 12-66 ten thousand parts of calcium, 1-7 parts of vitamin D, 266-2240 ten thousand parts of polydextrose and 67-560 ten thousand parts of galacto-oligosaccharide.
Preferably, the calcium source comprises calcium acetate, calcium caseinate, calcium chloride, calcium citrate malate, calcium gluconate, calcium lactate, calcium malate, calcium hydrogen phosphate, calcium dihydrogen phosphate, calcium sulfate, calcium ascorbate, calcium glycerophosphate, and milk calcium.
Preferably, the polydextrose meets the national food safety standard GB 25541-2010. Wherein the average polymerization degree of the polydextrose is 8-16, and the purity is more than 90%. The galacto-oligosaccharides comprise galacto-oligosaccharides to galacto-octaoligosaccharides with a purity > 57% on a dry basis.
According to one aspect of the present invention, there is provided a food product comprising the above composition.
Preferably, the food is selected from at least one of dairy, health food and snack food.
According to another aspect of the present invention there is provided the use of a composition as described above, or a food product comprising a composition as described above, for improving one or more of bone density, bone calcium content and bone microstructure in an animal.
Preferably, the bone microstructure is selected from at least one of trabecular number, trabecular separation, and bone volume fraction.
Preferably, the animal is selected from a growth-stage animal and an animal with insufficient calcium intake during other growth stages than the growth stage; preferably, the animal is a mammal.
Preferably, the growth-stage animal is a growth-stage child; the animals with insufficient calcium intake in other growth stages except the growth stage are human with insufficient calcium intake, preferably middle aged and elderly people with insufficient calcium intake.
The composition provided by the invention comprises the following components: the contents and proportions of calcium, vitamin D, Polydextrose (PDX) and galacto-oligosaccharide (GOX) and the components (calcium content, vitamin content, total PDX + GOS and ratio of polydextrose and galacto-oligosaccharide in PDX + GOS) achieve unexpected health effects, such as increasing bone density, increasing bone calcium content, improving bone microstructure (increasing number of trabeculae, decreasing trabeculae separation, increasing bone volume fraction) in animals in the growth phase and in other growth phases than the growth phase, which are not calcium-ingested.
Drawings
FIG. 1 is a schematic illustration of bone density imaging of rats in example 1 of the present invention;
FIG. 2 is a representative MiCro-CT image of the distal femur cross-section of each group of rats according to example 1 of the present invention.
Detailed Description
Technical features, objects and advantages of the present invention will be more clearly understood and appreciated by those skilled in the art. It should be understood that the following detailed description is merely exemplary, and the technical solution of the present invention is not limited to the specific embodiments listed below.
The invention provides a composition for improving bone health, which comprises the following raw material components: a calcium source, vitamin D and prebiotics. Wherein the prebiotics comprise polydextrose and galactooligosaccharides, and the weight ratio of the polydextrose to the galactooligosaccharides is (1-15) to 1, preferably (3-6) to 1, and more preferably 4 to 1 based on the contained effective substances.
The calcium source comprises calcium acetate, calcium caseinate, calcium chloride, calcium citrate malate, calcium gluconate, calcium lactate, calcium malate, calcium hydrogen phosphate, calcium dihydrogen phosphate, calcium sulfate, calcium ascorbate, calcium glycerophosphate, and milk calcium.
The polydextrose meets the national food safety standard GB 25541-2010. Wherein the average polymerization degree of the polydextrose is 8-16, and the purity is more than 90%. The galacto-oligosaccharides comprise galacto-oligosaccharides to galacto-octaoligosaccharides with a purity > 57% on a dry basis.
According to a particular embodiment, the composition comprises the following nutritional ingredients in parts by weight: 12-66 ten thousand parts of calcium, 1-7 parts of vitamin D, 266-2240 ten thousand parts of polydextrose and 67-560 ten thousand parts of galacto-oligosaccharide.
The invention also provides a food containing the composition. The above components are mixed and applied to various foods such as dairy food, health food and snack food. In particular to liquid milk, modified milk, yoghourt, cheese, milk powder, solid beverage, convenient food, candy and health care products, thereby realizing the technical effect of improving the bone health of Chinese children and people with insufficient calcium intake.
The invention also provides the use of the above composition or a food product comprising the above composition to improve one or more of bone density, bone calcium content and bone microstructure in an animal.
The bone microstructure is selected from at least one of the number of trabeculae, trabecular resolution, and bone volume fraction.
The animals are selected from growth stage animals and animals with insufficient calcium intake in growth stages other than growth stage; preferably, the animal is a mammal.
The growth-stage animals are growth-stage children; the animals with insufficient calcium intake in other growth stages except the growth stage are human with insufficient calcium intake, preferably middle aged and elderly people with insufficient calcium intake.
In summary, the composition provided by the invention has the following advantages:
the components of the composition are as follows: the effect of the calcium + vitamin D + polydextrose + galacto-oligosaccharide combination (polydextrose: galacto-oligosaccharide is 4: 1) applied to animals in growth period is obviously better than that of the higher-dose calcium group, the same-dose calcium + vitamin D group and the other-proportion calcium + vitamin D + PDX + GOS combination (polydextrose: galacto-oligosaccharide is 1: 1) group, and the effects are embodied in that the content of bone calcium is increased, the bone density is increased, the number of bone trabeculae is increased, the separation degree of the bone trabeculae is reduced and the bone volume fraction is increased.
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments.
The methods used in the following examples are conventional methods unless otherwise specified, and the reagents used are commercially available reagents unless otherwise specified.
Chinese children aged 3-6, 7-9 and 10-13 years have calcium intake of only 318mg, 334mg and 390mg on average, and recommended intake (RNI) values of 800mg, 1000mg and 1200mg respectively. Therefore, the invention constructs a growth-period animal model with the calcium intake only accounting for the recommended amount of 1/3, the model is fitted with the calcium nutrition condition of Chinese children, the growth period from 3 to 12 years old is represented by feeding the animal with low-calcium feed for 3 months, and the model animal shows the negative effects on the bone health condition under the condition of low calcium, including low bone calcium content, low bone density, low bone number, reduced trabecular bone number and increased trabecular bone spacing.
The invention provides the effect of improving the bone health of the animals in the growth period under the condition of low calcium nutrition by the high calcium group, and the dosage of the calcium in the high calcium group is supplemented to the recommended ideal dosage of the animals in the growth period.
The invention provides the effect of calcium and vitamin D on improving the bone health of animals in a growth period under the condition of low-calcium nutrition, the dosage of calcium is 3/4 of a high-calcium group after the calcium is supplemented, and the dosage of the vitamin D is 1.48 times of that of the low-calcium group and the high-calcium group.
The invention provides a calcium + vitamin D + PDX + GOS combination (polydextrose and galacto-oligosaccharide are 1: 1) for improving the bone health of animals in a growth period under a low-calcium nutritional condition, the calcium dosage after the calcium supplement is 3/4 of a high-calcium group, the vitamin D dosage is 1.5 times of that of a low-calcium group and that of a high-calcium group, the weight ratio of polydextrose to galacto-oligosaccharide in the PDX + GOS combination is 1: 1, and the dosage of PDX + GOS for children is 0.3-0.78g/kg.
The invention provides a calcium + vitamin D + PDX + GOS combination (polydextrose: galacto-oligosaccharide is 4: 1) for improving the bone health of animals in a growth period under a low-calcium nutritional condition, the calcium dosage after the calcium supplement is 3/4 of a high-calcium group, the vitamin D dosage is 1.5 times of that of a low-calcium group and that of a high-calcium group, the weight ratio of polydextrose to galacto-oligosaccharide in the PDX + GOS combination is 4: 1, and the dosage of PDX + GOS for children is 0.3-0.78g/kg.
Through comparison of the groups, the calcium + vitamin D + PDX + GOS combination (polydextrose: galactooligosaccharide is 4: 1) is obviously superior to the high-calcium group, the calcium + vitamin D group and the calcium + vitamin D + PDX + GOS combination (polydextrose: galactooligosaccharide is 1: 1) group in the aspects of improving bone calcium content, improving bone density, improving the number of bone trabeculae, reducing the space between the bone trabeculae and increasing bone volume fraction.
Examples
Example 1
Test animals and groups:
SPF-grade weaning SD rats 144 male, weighing 45-65 g, purchased from Beijing Wittingle laboratory animal technology Limited, animal qualification number SCXK (Jing) 2016-. The animals are raised in the barrier level animal house of the national institutes of public health of western Sichuan university, the qualification number SYXK (Sichuan) 2018-. During feeding, the animals are ensured to drink water freely and eat fully, and the drinking water is sterilized pure water. The rats are raised in cages with stainless steel wire at the bottom, the animal rooms are kept in quiet, clean, ventilated and proper illumination states, the temperature is 20-26 ℃, the humidity is 40% -70%, and the light and shade alternating period is 12 h.
The rats were fed with AIN-93G standard feed (Nantong Denofil feed science and technology Co., Ltd., production license number: Su-sho ((2019) 06092)) for 2 weeks, and the rats were randomly divided into 5 groups of 12 animals each with calcium and vitamin D3The administration of galacto-oligosaccharides (GOS) and Polydextrose (PDX) was performed in a mixed feeding mode, the experimental groups are shown in table 1, and the feed formula of each group is shown in table 2. All the feeding treatments were carried out continuously for 93 days after the animals were acclimatized, and the animals were sacrificed and examined for each index on the 93 th day of the experiment.
TABLE 1
Figure BDA0002960173480000051
Note: each component is calculated by weight of each component purity, and 1 mu g of vitamin D3 is 40IU of vitamin D3.
TABLE 2
Figure BDA0002960173480000061
Note: the weight of vitamin D3 in Table 2 is based on the weight of the material, and the purity of vitamin D3 in the material is 0.25%.
The conversion manner between the daily intake and the parts by weight of each component is as follows:
1 part by weight is 0.78 ug/day intake, and specifically, the daily intake of each component is as follows:
(1) in example 1, the low calcium group was 1/3 normal calcium group, calcium nutrition status was fitted to children aged 3-12 years in China, and calcium supplementation in the intervention group was 3/4 supplemented to the normal requirement, which achieved an effect beyond the expectation. The daily calcium supplement amount is 282-510mg/d calculated by children of 3-12 years old, and the calcium range is 1-3 times/day: 94mg-510 mg/d. The value is calculated by pure calcium, if the calcium sources are different, the calculation is needed according to the purity and the calcium content of the calcium sources, and the invention does not limit the calcium sources, so the protection is only carried out by the pure calcium.
(2) Vitamin D3 was supplemented in example 1 in an amount 1.48 times the dietary intake. The intake of vitamin D3 for children of 3-6, 7-9, and 10-12 years old is 5.24ug, 4.89ug, and 5.85 ug. The supplement amount of vitamin D3 is 2.35-5ug/D per day for children of 3-12 years, and the vitamin D3 is in the range of 1-3 times per day: 0.78-5 ug/d.
(3) The human ingestion dose of prebiotics (PDX + GOS) was 0.52g/kg.bw, calculated from the body weight and ingestion amount of rats in example 1. The prebiotics dosage is set to be 5g/100g of diet at the initial stage of the experiment, the diarrhea condition of the rat occurs, so that 1/3 prebiotics dosage is adjusted in the feed after the diarrhea is found at 0.52g/kg.bw, and the prebiotics dosage protection range is 0.3-0.78g/kg.bw according to the conversion of the weight and the food intake of the rat in the growth process. The weight average range of Chinese children of 3-12 years old is about 15-42kg, so the preferable dosage of the prebiotics is as follows: 7.8g-21.8g/d, and the total dosage of the prebiotics is 2.6g-21.8g/d calculated by 1-3 times/day, wherein the weight ratio of PDX to GOS is 4: 1. It is to be noted that prebiotic dosages are calculated as pure PDX and GOS.
Experimental methods
Animal treatment and sample collection
After the last gavage, the rats were fasted for 16h and water was freely available. After anesthetization, the abdominal veins were bled. The rats were sacrificed by cervical dislocation. The blood sample is centrifuged at 3500r/min for 10min at 4 ℃ to separate serum, and then supernatant is extracted. Serum was stored at-80 ℃ and removed when tested.
After the rats were sacrificed, bilateral femurs were separated, muscles and soft tissues attached to the bone surfaces were removed, and bilateral femurs were exfoliated. The left femur was oven dried in a 105 ℃ oven. The right femur was fixed with 4% paraformaldehyde for 36h, then soaked in 70% alcohol and stored in a refrigerator at 4 ℃ until CT scan.
Determination of femur weight, femur length, bone calcium and bone Density
Femoral weight and femoral length determination
After the left femur was dried in an oven at 105 ℃ to constant weight, the dry weight of the femur was recorded and the length of the femur was measured.
Bone calcium assay
And (3) placing the left femur dried to constant weight in a crucible, heating with soft fire, carbonizing until no smoke exists, transferring to a muffle furnace, and ashing for 3-4 h at 550 ℃. Cooling, taking out, digesting with concentrated nitric acid, fixing the volume to 25mL, taking 40uL to 10mL of colorimetric tube, adding 1mL of 20% lanthanum nitrate solution, fixing the volume to 10mL, shaking up, and measuring by using a flame atomic absorption spectrometer.
Bone Density determination
The bone density of the middle end of each rat femur was measured by a German Bruker DXS PRO type small animal full-automatic high resolution X-ray machine for the rat right femur after Micro-CT scanning, 10 rat femurs were imaged at the same time each time, the pixel resolution was 10 μm, the X-ray lamp voltage was 45kVp, and the exposure time was set to 1 min. The scanning results are shown in fig. 1.
Micro-CT detection
The rat right femur was scanned using a small animal living Micro-CT imaging system from PerkinElmer, usa. And analyzing by adopting Quantum GX micro CT Imaging System software. The scan parameters are set as follows: the field of view was set at 36mm, voxel 72 μm, energy 80kV, intensity 100 μ A, scan time 14 min. After three-dimensional reconstruction of scanning data, 512 pictures with different cross sections are obtained by scanning the same sample, and a region of interest (ROI) is set to be 50 pictures from 0.5mm below a growth layer). And (4) reconstructing the scanning data by using software and then analyzing parameters. The bone density was corrected using a resin-embedded hydroxyapatite solid calibration model from PerkinElmer, and the cortical, cancellous, and all bone densities in the ROI were calculated separately. Other analysis parameters include bone volume fraction (BV/TV), trabecular thickness (tb.th), trabecular number (tb.n), and trabecular separation (tb.sp).
Data processing and result determination
All data are expressed as Mean standard deviation (Mean ± SD). One-way anova was performed using SPSS 26.0 statistical software. Before analysis, the homogeneity of variance is tested, and the F value is calculated. If the F value is less than F0.05 and P is more than 0.05, the mean difference of each group is not statistically significant; if the F value is more than F0.05 and P is less than 0.05, the difference between the mean values of all groups is statistically significant. Mean pairwise comparisons between multiple experimental and control groups were analyzed using LSD except for Dunnett-t for body weight.
Results of the experiment
FIG. 2 shows representative images of cross-sectional Micro-CT of the distal femur of various groups of rats; table 3 shows the Micro-CT scan results for each set of femoral microstructures; table 4 shows the effect of femoral normative index (Mean + SD) for each subject. The white mesh portion below the tibial epiphyseal line in fig. 2 is the trabecular bone. The low calcium group, group 1, had the least number of trabeculae, and was the most sparse, with a wider trabecular spacing. The trabeculae of the normal group (2) and each intervention group (3-5) are interconnected in a network, the trabecular spacing is reduced, and the specific data are shown in table 3.
TABLE 3
Figure BDA0002960173480000091
TABLE 4
Figure BDA0002960173480000092
As can be seen from the experimental results shown in fig. 2, tables 3 and 4, the composition of the present invention, calcium + vitamin D + PDX + GOS, with a preferred ratio (PDX: GOS ═ 4: 1), can significantly improve the bone health status of animals in the growth period, including increasing bone calcium content, increasing bone density, increasing number of bone trabeculae, decreasing bone trabecular distance, increasing bone volume fraction, and has significantly better effect than the high calcium dose group, the same calcium + vitamin D group, and the same calcium + vitamin D + PDX + GOS combination (PDX: GOS ═ 1: 1) group.
The foregoing is only a preferred embodiment of the present invention. It will be appreciated that various modifications, combinations, alterations, and substitutions of the details and features of the invention may be made by those skilled in the art without departing from the spirit and nature of the invention. Such modifications, combinations, alterations and substitutions are also to be understood as being included within the scope of the invention as claimed.

Claims (10)

1. A composition for improving bone health, the composition comprising the raw material components: the calcium supplement comprises a calcium source, vitamin D and prebiotics, wherein the prebiotics comprise polydextrose and galactooligosaccharides, and the weight ratio of the polydextrose to the galactooligosaccharides is 3-6: 1; the composition comprises the following nutritional ingredients in parts by weight: 12-66 ten thousand parts of calcium, 1-7 parts of vitamin D, 266-2240 ten thousand parts of polydextrose and 67-560 ten thousand parts of galacto-oligosaccharide.
2. The composition according to claim 1, wherein the polydextrose has an average degree of polymerization of 8-16 and a purity > 90%.
3. A food product comprising the composition of claim 1 or 2.
4. The food product of claim 3, wherein the food product is selected from at least one of dairy, health food, and snack food.
5. Use of the composition of claim 1 or 2 in the preparation of a food product for improving one or more of bone density, bone calcium content and bone microstructure in an animal.
6. The use of claim 5, wherein the bone microstructure is selected from at least one of trabecular number, trabecular separation, and bone volume fraction.
7. Use according to claim 5, wherein the animal is selected from the group consisting of adult-period animals and other animals with insufficient calcium intake during growth phases.
8. The use of claim 5, wherein the animal is a mammal.
9. The use of claim 7, wherein the adult-stage animal is an adult-stage child; the other growth stage calcium deficient animals are humans with calcium deficient intake.
10. Use according to claim 7, wherein the other growth stage calcium deficient animals are elderly populations with calcium deficient intake.
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