CN105238098A - Dynamic gradient embedding method for purple corn cob anthocyanin - Google Patents
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Abstract
The present invention provides a dynamic gradient embedding method for purple corn cob anthocyanin. The embedding method takes octenyl succinic anhydride modified acacia, dextrin and hydroxypropyl beta-cyclodextrin as a wall material, and takes macropore resin purified purple corn cob anthocyanin through a water extraction method as a cob material. In order to improve the embedding efficiency, the embedding yield and the storage stability of the anthocyanin, the method provided by the present invention adopts a dynamic gradient embedding method to control wall material concentrations from low to high, thus achieving embedding of the anthocyanin for many times. Through measurement, the embedding efficiency of the purple corn cob anthocyanin microcapsules reaches 94-99%, and the embedding yield of the same reaches 92-96%. Compared to an embedding method with an equal concentration in the whole course, the embedding efficiency is improved by 20-35%, and the embedding yield is improved by 25-40%. After 60-70 hours at room temperature in daylight, the preservation rate of the gradient embedded purple corn cob anthocyanin can reach 90% or above, and the light stable time of the same is shortened by 500-600% compared with equal concentration embedding method in the whole course.
Description
Technical field
The present invention relates to cereal intensive processing technical field, be specifically related to a kind of purple corn cob anthocyanidin embedding method, particularly a kind of dynamic gradient embedding method improves the embedding efficiency of purple corn cob anthocyanidin, embedding productive rate and stability in storage.
Background technology
Anthocyanogen is widely distributed, and the anthocyanogen of known occurring in nature just has kind more than 600.Anthocyanogen has the resistance of oxidation higher than the common antioxidant such as vitamins C and vitamin-E, the ability of scavenging free radicals, antibacterial, anti-inflammatory and anticancer growth is strong, anthocyanin class material also can be used as natural additive for foodstuff, painted for food such as refreshment drink, jelly, candies.Therefore, the common concern of food, cosmetic, nutrition and pharmaceutical field scholar is enjoyed.
At present, about the research of purple corn cob and anthocyanogen is as following:
The Extraction and separation purifying aspect of the Purple Corn Anthocyanins, a kind of extraction process of purple corn leaf anthocyanidin is disclosed in 201110194836.6, its advantage is the extraction yield being improved anthocyanidin by ultrasonic-assisted extraction method, but supersound process may cause the change of anthocyanogen structure, and this technique does not carry out removal of impurities process to anthocyanogen, to the stability also not specified (NS) of anthocyanogen.This technique is with purple corn leaf for raw material in addition, does not relate to purple corn cob.The extraction process of the tasteless corn pigment of a kind of high stability is disclosed in 201310673454.0, its advantage is by ultrasonic-assisted extraction, zymolysis technique removal of impurities, macroporous resin adsorption and membrane separation technique deodorizing and purifying, and finally obtain tasteless, fast light and heat-resisting the Purple Corn Anthocyanins, but the time that illumination is stable is not explained in the stability experiment in this invention, and this invention with purple corn skin for raw material, do not relate to purple corn cob.In addition 201310670696.4 disclosed in a kind of purple corn pigment extraction process similar with this invention.The preparation method of C-3-G is disclosed in 201110137741.0, its advantage is to have carried out extracting and developing to anthocyanogen and finishes structure qualification, but the method does not explain the stability of anthocyanogen, in addition, the method for raw material, is not specifically related to purple corn cob with purple crop.
Concerned plant anthocyanogen stability study technical elements, the method of the auxiliary look of a kind of purple corn cob anthocyanogen is disclosed in 201110225754.3, its advantage is to utilize glycine as auxiliary toner to improve the thermostability of purple corn cob anthocyanogen, and reduces the impact of metal ion on purple corn cob anthocyanogen stability.But the method does not relate to, and the key of purple corn cob anthocyanogen is stable answers influence factor, i.e. light durability.A kind of preparation method of anthocyanin lipidosome is disclosed in 201310413928.8, the advantage of the method is method embedding anthocyanidin by preparing anthocyanin lipidosome suspension and carries out lyophilize to obtain anthocyanin lipidosome, but the freeze-drying energy consumption that the method uses is high, time of drying is long, is not suitable for suitability for industrialized production.A kind of pycnogenols slow releasing capsule is disclosed in 02117320.6, the advantage of the method is realize multilayer embedding pycnogenols with the macromole such as alginate calcium, chitosan and adopt orifice method to prepare pycnogenols slow releasing capsule, to reach the effect of slow releasing pycnogenols, but the method does not relate to the stability of anthocyanidin, in addition, orifice method is high not as good as spray-drying process production efficiency.A kind of blackberry anthocyanin microcapsules and preparation method thereof is disclosed in 201110440469.3, the advantage of the method be utilize the macromole such as gum arabic and maltodextrin wall material to embed anthocyanogen and the method being prepared anthocyanin microcapsules by spraying dry to improve anthocyanogen stability, but the gum arabic amount that the method uses is large, and gum arabic cost intensive; Secondly, the method must by controlling the concentration of feed liquid and adding anticaking agent to solve the adhesion problem occurred in spray-drying process, and process is more complicated; Moreover the method is not investigated and is adopted gradient concentration embedding to improve embedding efficiency and productive rate, and the method take blackberry, blueberry as raw material, does not relate to purple corn cob.A kind of oligomeric proanhocyanidins microcapsule disclosed in the manufacture method and 200720154938.4 that similar open invention is also included in purple corn anthocyanin disclosed in 200710064006.
About the research aspect of purple corn cob, what invention disclosed related to is its application in the industry, a kind of corn cob meal disclosed in corn core carrier modifying method, 201110057680.7 disclosed in corn core flour microorganism control method, 200910136138.3 disclosed in a kind of purple corn bag tea and preparation method thereof, 200910136137.9 disclosed in purple corn beverage and preparation method thereof, 200910010934.2 etc. disclosed in 200810119985.Though these inventions all with corn cob or purple corn cob for raw material, be the stability study relating to wherein anthocyanogen.
Anthocyanogen is as a class functional substance, and its less stable, responsive to the factor such as light, heat and pH, limit its application in the industry, therefore anthocyanogen stability study becomes anthocyanogen area research focus.The method of auxiliary toner or embedding is utilized disclosed in above-mentioned partial monopoly document, it is the common method improving anthocyanogen stability at present, wherein, entrapping method is the most common, but above-mentioned patent documentation is not all investigated and is adopted gradient concentration repeatedly to embed anthocyanogen embedding efficiency, the impact embedding productive rate and anthocyanogen stability, does not disclose anthocyanogen gradient embedding method yet; In addition, the gum arabic concentration generally used is high, and raw materials cost is significantly increased; Moreover must control feed concentration during spraying dry or add anticaking agent to avoid adhesion problem, process is complicated.
Anthocyanogen embedding techniques aspect, at present, domestic disclosed most of patent documentation all with blackberry, blueberry, blueberry, purple potato etc. for research object, the patent documentation having no purple corn cob embedding is open.Purple corn cob is the by product after purple corn processing, and the effective scavenging free radicals of anthocyanin class substance that it is rich in, prevents ultraviolet radiation, can be used for antitumor, anti-ageing and skin-protecting face nursing.Purple corn cob abundance, cost is low, and compared with the common plant material being rich in anthocyanogen, not by seasonal effect.
Based on the function of purple corn cob anthocyanogen, the method that embedded by gradient concentration improves the embedding efficiency of anthocyanogen, embedding productive rate and stability in storage, reduce costs, need to go out a set of new production method embedding purple corn cob anthocyanogen according to food-processing principle design.
Summary of the invention
The present invention is directed to the deficiencies in the prior art part, a kind of purple corn cob anthocyanogen dynamic gradient embedding method is provided.
The object of this invention is to provide a kind of purple corn cob anthocyanogen dynamic gradient embedding method, specifically with octenyl succinic acid anhydride modified gum arabic, maltodextrin and hydroxypropylβ-cyclodextrin for wall material, be core with water extraction and through the purple corn cob anthocyanogen of macroporous resin purification, adopt dynamic gradient investment fashion, control wall material concentration from low to high, realize the repeatedly embedding to anthocyanogen, improve anthocyanogen embedding efficiency, embedding productive rate and stability in storage, reduce costs simultaneously, and realize Direct spraying drying and feed concentration need not be controlled, Simplified flowsheet.
A kind of purple corn cob anthocyanogen dynamic gradient embedding method that the present invention relates to is realized by following technical proposals and step:
The preparation of wall material: the colloid wall material solution being respectively 100-140g/L, 140-180g/L, 180-220g/L with distilled water configuration concentration.Wherein, often liter of wall material colloid wall material solution contains 20-40g octenyl succinic acid anhydride modified gum arabic, 40-100g maltodextrin, 40-100g hydroxypropylβ-cyclodextrin, 0.05-0.20gEDTA-2Na;
The preparation of core: with 80% ethanolic soln containing 1% citric acid for extraction agent, the ratio of purple corn cob powder and extraction agent is 1:8-1:10 (W/V), extract 2 times at 55 DEG C, each extraction time is 60min, obtains thick purple corn cob anthocyanogen solution (a).HP20 macroporous resin is added in a, the ratio of HP20 macroporous resin and a is 1:40-1:70 (W/V), filter after being placed in 25 DEG C of shaking bath 100r/min vibration absorption 5h, use the anthocyanogen of the ethanolic soln wash-out resin absorption of 95% again, elution time is 6-10h, elutriant goes to dissolve with distilled water after ethanol through decompression, obtains purple corn cob anthocyanogen solution (b) after purifying.In b, the content of anthocyanogen is 1.05-1.72g/100g (dry weight);
The gradient embedding of purple corn cob anthocyanogen: the colloid wall material solution of 100-140g/L is added in b solution while stirring, wall material and core mass ratio are 0.5-0.75:1, after 60 DEG C of constant temperature stir 15-20min, add the colloid wall material solution of 145-180g/L, wall material and core mass ratio are 0.75-1.0:1, after 60 DEG C of constant temperature stir 15-20min, homogeneous 1 time under 40MPa pressure condition, add the colloid wall material solution of 185-220g/L again, wall material and core mass ratio are 0.75-1.0:1, homogeneous 1 time under 40MPa pressure condition, obtain the purple corn cob anthocyanogen compound after embedding.Compare with the omnidistance isoconcentration embedding of the colloid wall material solution of 185-220g/L.
Dry: adopt the purple corn cob anthocyanogen compound after spray-drying process drying embedding, inlet temperature is 180 DEG C, and air outlet temperature is 85 DEG C, without the need to controlling compound concentration time dry.
The present invention has following advantage compared with prior art: the present invention adopts gradient entrapping method, by progressively improving the mode of wall material concentration, the repeatedly embedding to the anthocyanidin do not embedded can be realized, thus improve the embedding efficiency of purple corn cob anthocyanogen and productive rate and storage stability.After measured, the embedding efficiency of purple corn cob anthocyanin microcapsules reaches 94-99%, embedding productive rate reaches 92-96%.Compared with omnidistance isoconcentration entrapping method, embedding efficiency improves 20%-35%, and embedding productive rate improves 25-40%.Purple corn cob anthocyanogen after gradient embedding is under normal temperature illumination condition after 60-70d, and its storage rate can reach more than 90%, and compared with omnidistance isoconcentration entrapping method, illumination improves 500-600% steady time.The present invention adopts octenyl succinic acid anhydride modified gum arabic as one of wall material raw material, and compared with unmodified gum glue, this modified gum arabic obviously can reduce the addition of gum arabic, thus significantly reduces embedding cost; Meanwhile, this modified gum arabic can significantly improve mobility and the film-formation result of wall material colloidal solution, thus can realize high encapsulation efficiencies and productive rate under low consistency conditions; Moreover wall material colloidal solution has comparatively low viscosity characteristics, the feed liquid in spray-drying process effectively can be avoided when not controlling spraying dry feed concentration to bond, reducing the moisture content in drying products, improve product stock stability.
Embodiment
Embodiment 1:
(1) the preparation distilled water configuration concentration of wall material is respectively the colloid wall material solution of 100g/L, 140g/L, 180g/L.Wherein, often liter of 100g/L wall material colloid wall material solution contains 20g octenyl succinic acid anhydride modified gum arabic, 40g maltodextrin, 40g hydroxypropylβ-cyclodextrin, 0.05gEDTA-2Na; Often liter of 140g/L wall material colloid wall material solution contains 20g octenyl succinic acid anhydride modified gum arabic, 60g maltodextrin, 60g hydroxypropylβ-cyclodextrin, 0.05gEDTA-2Na; Often liter of 180g/L wall material colloid wall material solution contains 20g octenyl succinic acid anhydride modified gum arabic, 80g maltodextrin, 80g hydroxypropylβ-cyclodextrin, 0.05gEDTA-2Na;
(2) the preparation of core is to contain 80% ethanolic soln of 1% citric acid for extraction agent, the ratio of purple corn cob powder and extraction agent is 1:8 (W/V), extract 2 times at 55 DEG C, each extraction time is 60min, obtains thick purple corn cob anthocyanogen solution (a).HP20 macroporous resin is added in a, the ratio of HP20 macroporous resin and a is 1:70 (W/V), filter after being placed in 25 DEG C of shaking bath 100r/min vibration absorption 5h, use the anthocyanogen of the ethanolic soln wash-out resin absorption of 95% again, elution time is 6h, elutriant goes to dissolve with distilled water after ethanol through decompression, obtains purple corn cob anthocyanogen solution (b) after purifying.In b, the content of anthocyanogen is 1.05g/100g (dry weight);
(3) the colloid wall material solution of 100g/L adds in b solution by the gradient embedding of purple corn cob anthocyanogen while stirring, wall material and core mass ratio are 0.5:1, after 60 DEG C of constant temperature stir 15min, add the colloid wall material solution of 140g/L, wall material and core mass ratio are 0.75:1, after 60 DEG C of constant temperature stir 20min, homogeneous 1 time under 40MPa pressure condition, add the colloid wall material solution of 180g/L again, wall material and core mass ratio are 0.75:1, homogeneous 1 time under 40MPa pressure condition, obtains the purple corn cob anthocyanogen compound after embedding.Compare with the omnidistance isoconcentration embedding of the colloid wall material solution of 180g/L.
(4) the purple corn cob anthocyanogen compound after dry employing spray-drying process drying embedding, inlet temperature is 180 DEG C, and air outlet temperature is 85 DEG C, without the need to controlling compound concentration time dry.
Embodiment 2:
(1) the preparation distilled water configuration concentration of wall material is respectively the colloid wall material solution of 110g/L, 150g/L, 190g/L.Wherein, often liter of 110g/L wall material colloid wall material solution contains 25g octenyl succinic acid anhydride modified gum arabic, 45g maltodextrin, 40g hydroxypropylβ-cyclodextrin, 0.10gEDTA-2Na; Often liter of 150g/L wall material colloid wall material solution contains 25g octenyl succinic acid anhydride modified gum arabic, 65g maltodextrin, 60g hydroxypropylβ-cyclodextrin, 0.10gEDTA-2Na; Often liter of 190g/L wall material colloid wall material solution contains 25g octenyl succinic acid anhydride modified gum arabic, 85g maltodextrin, 80g hydroxypropylβ-cyclodextrin, 0.10gEDTA-2Na;
(2) the preparation of core is to contain 80% ethanolic soln of 1% citric acid for extraction agent, the ratio of purple corn cob powder and extraction agent is 1:8 (W/V), extract 2 times at 55 DEG C, each extraction time is 60min, obtains thick purple corn cob anthocyanogen solution (a).HP20 macroporous resin is added in a, the ratio of HP20 macroporous resin and a is 1:60 (W/V), filter after being placed in 25 DEG C of shaking bath 100r/min vibration absorption 5h, use the anthocyanogen of the ethanolic soln wash-out resin absorption of 95% again, elution time is 8h, elutriant goes to dissolve with distilled water after ethanol through decompression, obtains purple corn cob anthocyanogen solution (b) after purifying.In b, the content of anthocyanogen is 1.27g/100g (dry weight);
(3) the colloid wall material solution of 110g/L adds in b solution by the gradient embedding of purple corn cob anthocyanogen while stirring, wall material and core mass ratio are 0.75:1, after 60 DEG C of constant temperature stir 15min, add the colloid wall material solution of 150g/L, wall material and core mass ratio are 0.75:1, after 60 DEG C of constant temperature stir 20min, homogeneous 1 time under 40MPa pressure condition, add the colloid wall material solution of 190g/L again, wall material and core mass ratio are 0.75:1, homogeneous 1 time under 40MPa pressure condition, obtains the purple corn cob anthocyanogen compound after embedding.Compare with the omnidistance isoconcentration embedding of the colloid wall material solution of 190g/L.
(4) the purple corn cob anthocyanogen compound after dry employing spray-drying process drying embedding, inlet temperature is 180 DEG C, and air outlet temperature is 85 DEG C, without the need to controlling compound concentration time dry.
Embodiment 3:
(1) the preparation distilled water configuration concentration of wall material is respectively the colloid wall material solution of 120g/L, 160g/L, 200g/L.Wherein, often liter of 120g/L wall material colloid wall material solution contains 30g octenyl succinic acid anhydride modified gum arabic, 45g maltodextrin, 45g hydroxypropylβ-cyclodextrin, 0.10gEDTA-2Na; Often liter of 160g/L wall material colloid wall material solution contains 30g octenyl succinic acid anhydride modified gum arabic, 65g maltodextrin, 65g hydroxypropylβ-cyclodextrin, 0.10gEDTA-2Na; Often liter of 200g/L wall material colloid wall material solution contains 30g octenyl succinic acid anhydride modified gum arabic, 85g maltodextrin, 85g hydroxypropylβ-cyclodextrin, 0.10gEDTA-2Na;
(2) the preparation of core is to contain 80% ethanolic soln of 1% citric acid for extraction agent, the ratio of purple corn cob powder and extraction agent is 1:9 (W/V), extract 2 times at 55 DEG C, each extraction time is 60min, obtains thick purple corn cob anthocyanogen solution (a).HP20 macroporous resin is added in a, the ratio of HP20 macroporous resin and a is 1:50 (W/V), filter after being placed in 25 DEG C of shaking bath 100r/min vibration absorption 5h, use the anthocyanogen of the ethanolic soln wash-out resin absorption of 95% again, elution time is 9h, elutriant goes to dissolve with distilled water after ethanol through decompression, obtains purple corn cob anthocyanogen solution (b) after purifying.In b, the content of anthocyanogen is 1.46g/100g (dry weight);
(3) the colloid wall material solution of 120g/L adds in b solution by the gradient embedding of purple corn cob anthocyanogen while stirring, wall material and core mass ratio are 0.75:1, after 60 DEG C of constant temperature stir 15min, add the colloid wall material solution of 160g/L, wall material and core mass ratio are 0.75:1, after 60 DEG C of constant temperature stir 20min, homogeneous 1 time under 40MPa pressure condition, add the colloid wall material solution of 200g/L again, wall material and core mass ratio are 0.75:1, homogeneous 1 time under 40MPa pressure condition, obtains the purple corn cob anthocyanogen compound after embedding.Compare with the omnidistance isoconcentration embedding of the colloid wall material solution of 200g/L.
(4) the purple corn cob anthocyanogen compound after dry employing spray-drying process drying embedding, inlet temperature is 180 DEG C, and air outlet temperature is 85 DEG C, without the need to controlling compound concentration time dry.
Embodiment 4:
(1) the preparation distilled water configuration concentration of wall material is respectively the colloid wall material solution of 130g/L, 170g/L, 210g/L.Wherein, often liter of 130g/L wall material colloid wall material solution contains 35g octenyl succinic acid anhydride modified gum arabic, 50g maltodextrin, 45g hydroxypropylβ-cyclodextrin, 0.15gEDTA-2Na; Often liter of 170g/L wall material colloid wall material solution contains 35g octenyl succinic acid anhydride modified gum arabic, 70g maltodextrin, 65g hydroxypropylβ-cyclodextrin, 0.15gEDTA-2Na; Often liter of 210g/L wall material colloid wall material solution contains 35g octenyl succinic acid anhydride modified gum arabic, 90g maltodextrin, 85g hydroxypropylβ-cyclodextrin, 0.15gEDTA-2Na;
(2) the preparation of core is to contain 80% ethanolic soln of 1% citric acid for extraction agent, the ratio of purple corn cob powder and extraction agent is 1:10 (W/V), extract 2 times at 55 DEG C, each extraction time is 60min, obtains thick purple corn cob anthocyanogen solution (a).HP20 macroporous resin is added in a, the ratio of HP20 macroporous resin and a is 1:40 (W/V), filter after being placed in 25 DEG C of shaking bath 100r/min vibration absorption 5h, use the anthocyanogen of the ethanolic soln wash-out resin absorption of 95% again, elution time is 9h, elutriant goes to dissolve with distilled water after ethanol through decompression, obtains purple corn cob anthocyanogen solution (b) after purifying.In b, the content of anthocyanogen is 1.66g/100g (dry weight);
(3) the colloid wall material solution of 130g/L adds in b solution by the gradient embedding of purple corn cob anthocyanogen while stirring, wall material and core mass ratio are 1:1, after 60 DEG C of constant temperature stir 15min, add the colloid wall material solution of 170g/L, wall material and core mass ratio are 1:1, after 60 DEG C of constant temperature stir 20min, homogeneous 1 time under 40MPa pressure condition, add the colloid wall material solution of 210g/L again, wall material and core mass ratio are 1:1, homogeneous 1 time under 40MPa pressure condition, obtains the purple corn cob anthocyanogen compound after embedding.Compare with the omnidistance isoconcentration embedding of the colloid wall material solution of 210g/L.
(4) the purple corn cob anthocyanogen compound after dry employing spray-drying process drying embedding, inlet temperature is 180 DEG C, and air outlet temperature is 85 DEG C, without the need to controlling compound concentration time dry.
Embodiment 5:
(1) the preparation distilled water configuration concentration of wall material is respectively the colloid wall material solution of 140g/L, 180g/L, 220g/L.Wherein, often liter of 140g/L wall material colloid wall material solution contains 40g octenyl succinic acid anhydride modified gum arabic, 50g maltodextrin, 50g hydroxypropylβ-cyclodextrin, 0.2gEDTA-2Na; Often liter of 180g/L wall material colloid wall material solution contains 40g octenyl succinic acid anhydride modified gum arabic, 70g maltodextrin, 70g hydroxypropylβ-cyclodextrin, 0.2gEDTA-2Na; Often liter of 220g/L wall material colloid wall material solution contains 40g octenyl succinic acid anhydride modified gum arabic, 90g maltodextrin, 90g hydroxypropylβ-cyclodextrin, 0.2gEDTA-2Na;
(2) the preparation of core is to contain 80% ethanolic soln of 1% citric acid for extraction agent, the ratio of purple corn cob powder and extraction agent is 1:10 (W/V), extract 2 times at 55 DEG C, each extraction time is 60min, obtains thick purple corn cob anthocyanogen solution (a).HP20 macroporous resin is added in a, the ratio of HP20 macroporous resin and a is 1:40 (W/V), filter after being placed in 25 DEG C of shaking bath 100r/min vibration absorption 5h, use the anthocyanogen of the ethanolic soln wash-out resin absorption of 95% again, elution time is 10h, elutriant goes to dissolve with distilled water after ethanol through decompression, obtains purple corn cob anthocyanogen solution (b) after purifying.In b, the content of anthocyanogen is 1.72g/100g (dry weight);
(3) the colloid wall material solution of 140g/L adds in b solution by the gradient embedding of purple corn cob anthocyanogen while stirring, wall material and core mass ratio are 1:1, after 60 DEG C of constant temperature stir 15min, add the colloid wall material solution of 180g/L, wall material and core mass ratio are 1:1, after 60 DEG C of constant temperature stir 20min, homogeneous 1 time under 40MPa pressure condition, add the colloid wall material solution of 220g/L again, wall material and core mass ratio are 1:1, homogeneous 1 time under 40MPa pressure condition, obtains the purple corn cob anthocyanogen compound after embedding.Compare with the omnidistance isoconcentration embedding of the colloid wall material solution of 220g/L.
(4) the purple corn cob anthocyanogen compound after dry employing spray-drying process drying embedding, inlet temperature is 180 DEG C, and air outlet temperature is 85 DEG C, without the need to controlling compound concentration time dry.
For a person skilled in the art; it still can be modified to the technical scheme described in foregoing embodiments; or equivalent replacement is carried out to wherein portion of techniques feature; within the spirit and principles in the present invention all; any amendment of doing, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (5)
1. a purple corn cob anthocyanogen dynamic gradient embedding method, is characterized in that, described method comprises following technology and step: the preparation of wall material, the preparation of core, the gradient embedding of purple corn cob anthocyanogen, dry.
2. purple corn cob anthocyanogen dynamic gradient embedding method as claimed in claim 1, is characterized in that: the preparation of described wall material, is respectively the colloid wall material solution of 100-140g/L, 140-180g/L, 180-220g/L with distilled water configuration concentration.Wherein, often liter of wall material colloid wall material solution contains 20-40g octenyl succinic acid anhydride modified gum arabic, 40-100g maltodextrin, 40-100g hydroxypropylβ-cyclodextrin, 0.05-0.20gEDTA-2Na.
3. purple corn cob anthocyanogen dynamic gradient embedding method as claimed in claim 1, it is characterized in that: the preparation of described core, with 80% ethanolic soln containing 1% citric acid for extraction agent, the ratio of purple corn cob powder and extraction agent is 1:8-1:10 (W/V), extract 2 times at 55 DEG C, each extraction time is 60min, obtains thick purple corn cob anthocyanogen solution (a).HP20 macroporous resin is added in a, the ratio of HP20 macroporous resin and a is 1:40-1:70 (W/V), filter after being placed in 25 DEG C of shaking bath 100r/min vibration absorption 5h, use the anthocyanogen of the ethanolic soln wash-out resin absorption of 95% again, elution time is 6-10h, elutriant goes to dissolve with distilled water after ethanol through decompression, obtains purple corn cob anthocyanogen solution (b) after purifying.In b, the content of anthocyanogen is 1.05-1.72g/100g (dry weight).
4. purple corn cob anthocyanogen dynamic gradient embedding method as claimed in claim 1, it is characterized in that: the gradient embedding of purple corn cob anthocyanogen, the colloid wall material solution of 100-140g/L is added in b solution while stirring, wall material and core mass ratio are 0.5-0.75:1, after 60 DEG C of constant temperature stir 15-20min, add the colloid wall material solution of 145-180g/L, wall material and core mass ratio are 0.75-1.0:1, after 60 DEG C of constant temperature stir 15-20min, homogeneous 1 time under 40MPa pressure condition, add the colloid wall material solution of 185-220g/L again, wall material and core mass ratio are 0.75-1.0:1, homogeneous 1 time under 40MPa pressure condition, obtain the purple corn cob anthocyanogen compound after embedding.Compare with the omnidistance isoconcentration embedding of the colloid wall material solution of 185-220g/L.
5. purple corn cob anthocyanogen dynamic gradient embedding method as claimed in claim 1, it is characterized in that: dry, adopt the purple corn cob anthocyanogen compound after spray-drying process drying embedding, inlet temperature is 180 DEG C, air outlet temperature is 85 DEG C, without the need to controlling compound concentration time dry.
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| CN108576817A (en) * | 2018-03-23 | 2018-09-28 | 河南科技大学 | A kind of preparation method of slow-release anthocyanidin microcapsules |
| CN108741071A (en) * | 2018-05-24 | 2018-11-06 | 中北大学 | A kind of preparation method of purple perilla anthocyanin microcapsules |
| CN111513146A (en) * | 2020-04-30 | 2020-08-11 | 江苏中兴药业有限公司 | Preparation method of silybum marianum oil containing probiotics |
| CN113150045A (en) * | 2021-04-16 | 2021-07-23 | 山西火品生物科技有限公司 | Method for efficiently extracting and purifying anthocyanin of purple corn cob |
| CN115152927A (en) * | 2022-06-01 | 2022-10-11 | 沈阳农业大学 | Purple corn anthocyanin compound and preparation method thereof |
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| CN107136483A (en) * | 2017-05-17 | 2017-09-08 | 浙江大学 | The preparation and its Forecasting Methodology of anthocyanin thermal degradation in a kind of suppression fruit juice |
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| CN108576817B (en) * | 2018-03-23 | 2021-07-02 | 河南科技大学 | Preparation method of slow-release type anthocyanin microcapsules |
| CN108741071A (en) * | 2018-05-24 | 2018-11-06 | 中北大学 | A kind of preparation method of purple perilla anthocyanin microcapsules |
| CN111513146A (en) * | 2020-04-30 | 2020-08-11 | 江苏中兴药业有限公司 | Preparation method of silybum marianum oil containing probiotics |
| CN113150045A (en) * | 2021-04-16 | 2021-07-23 | 山西火品生物科技有限公司 | Method for efficiently extracting and purifying anthocyanin of purple corn cob |
| CN115152927A (en) * | 2022-06-01 | 2022-10-11 | 沈阳农业大学 | Purple corn anthocyanin compound and preparation method thereof |
| CN115152927B (en) * | 2022-06-01 | 2023-12-22 | 沈阳农业大学 | Purple corn anthocyanin compound and preparation method thereof |
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