CN110016525A - A kind of functional food sugar grass syrup and preparation method thereof - Google Patents

A kind of functional food sugar grass syrup and preparation method thereof Download PDF

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Publication number
CN110016525A
CN110016525A CN201910284225.7A CN201910284225A CN110016525A CN 110016525 A CN110016525 A CN 110016525A CN 201910284225 A CN201910284225 A CN 201910284225A CN 110016525 A CN110016525 A CN 110016525A
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CN
China
Prior art keywords
sugar grass
preparation
juice
syrup
stalks
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Pending
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CN201910284225.7A
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Chinese (zh)
Inventor
陈积红
胡伟
李文建
刘敬
王曙阳
陆栋
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Institute of Modern Physics of CAS
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Institute of Modern Physics of CAS
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Priority to CN201910284225.7A priority Critical patent/CN110016525A/en
Publication of CN110016525A publication Critical patent/CN110016525A/en
Pending legal-status Critical Current

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    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00Purification of sugar juices
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00Purification of sugar juices
    • C13B20/16Purification of sugar juices by physical means, e.g. osmosis or filtration
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B20/00Purification of sugar juices
    • C13B20/16Purification of sugar juices by physical means, e.g. osmosis or filtration
    • C13B20/165Purification of sugar juices by physical means, e.g. osmosis or filtration using membranes, e.g. osmosis, ultrafiltration
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B30/00Crystallisation; Crystallising apparatus; Separating crystals from mother liquors ; Evaporating or boiling sugar juice
    • C13B30/002Evaporating or boiling sugar juice
    • CCHEMISTRY; METALLURGY
    • C13SUGAR INDUSTRY
    • C13BPRODUCTION OF SUCROSE; APPARATUS SPECIALLY ADAPTED THEREFOR
    • C13B50/00Sugar products, e.g. powdered, lump or liquid sugar; Working-up of sugar

Abstract

The invention discloses a kind of functional food sugar grass syrup and preparation method thereof.Its preparation method includes the following steps: 1) to heat juice of sugar grass stalks;(2) pre-filtering processing slagging-off is carried out to the juice of sugar grass stalks after heating, obtains filtrate A;(3) the filtrate A is subjected to secondary filter using microfiltration membranes, obtains liquor B;(4) liquor B is concentrated, the concentration for being concentrated into wherein dry is 70~80% to get the sugar grass syrup for arriving semisolid.The present invention can effectively remove dust, bacterium and macromolecular substances, realize the higher value application that juice of sugar grass stalks nutrition composition all recycles, and be conducive to the deep processing and comprehensive utilization of juice of sugar grass stalks.

Description

A kind of functional food sugar grass syrup and preparation method thereof
Technical field
The present invention relates to a kind of functional food sugar grass syrup and preparation method thereof, and in particular to a kind of functional food Sugar grass syrup and a kind of method for preparing functional food sugar grass syrup using juice of sugar grass stalks, belong to food engineering Technical field.
Background technique
People's lives are horizontal compared with the past compared with having greatly improved, but due to the accelerating rhythm of life, people are gradually There are some sub-health states, also increasingly focuses on food health safety.The exploitation of safe and healthy, nutrition food has become Current whole society focus of attention, there is an urgent need to have natural, green, safety and the comprehensive functional food of nutrition by people.Sweet tea is high Fine strain of millet syrup be it is a kind of do not add any substance, pure physical method, the nutrition prepared with juice of sugar grass stalks is comprehensively functional Food.It, which is rich in, soluble sugar, good water soluble protein, the mines such as potassium, sodium, calcium, magnesium, iron, manganese, zinc and copper of high-content Material element, being also rich in has the nutritional ingredients such as VC, VB1, VB2 and VE.
There was only industrial sugar grass syrup production in the country;It is existing for many years that functional sugar grass syrup is prepared in European and American developed countries History, production technology be squeezing obtain juice of sugar grass stalks, filter, staticly settle through mesh bag, supernatant is taken to heat It boils, skims offscum, carry out the concentration of continuous evaporation pot, the sugar that solid concentration is 78% can be obtained in metallic sieve filtering and removing slag Slurry.This preparation process does not have to remove the microorganism polluted in juice in (1) preparation process there is also certain problem, Pollution microbes are easy, food safety is influenced;(2) solid filtering is not thorough in preparation process, and syrup is easily muddy;(3) it boils The defects of temperature is high and uneven in the process, some active matters in destructible syrup, reduced sugar easy caramelization, easily causes product The problems such as pollution and unstable quality.
How the recycling of in sweet sorghum stalk mixing juice nutriment full constituent, assurance function food sweet tea are really realized The green clean manufacturing of sorghum molasses, being easy to continuous production is that there is an urgent need for solve the problems, such as.
Summary of the invention
The object of the present invention is to provide it is a kind of using juice of sugar grass stalks prepare functional food sugar grass syrup and its Preparation method, the present invention can effectively remove dust, bacterium and macromolecular substances, realize juice of sugar grass stalks nutrition composition The higher value application all recycled is conducive to the deep processing and comprehensive utilization of juice of sugar grass stalks.
A kind of preparation method preparing functional food sugar grass syrup using juice of sugar grass stalks provided by the invention, Include the following steps: 1) to heat juice of sugar grass stalks;
(2) pre-filtering processing slagging-off is carried out to the juice of sugar grass stalks after heating, obtains filtrate A;
(3) the filtrate A is subjected to secondary filter using microfiltration membranes, obtains liquor B;
(4) liquor B is concentrated, the concentration for being concentrated into wherein dry is 70~80% to get arriving semisolid Sugar grass syrup.
In the present invention, the juice of sugar grass stalks is adopted to be prepared with method known in this field, is concretely grown Mature sweet sorghum stalk is directly obtained through squeezing.
In above-mentioned preparation method step 1), the temperature that is heated to can be 50 DEG C~80 DEG C, concretely 55 DEG C, 60 DEG C, 70 DEG C, 55 DEG C~70 DEG C or 50 DEG C~75 DEG C.
It is described be heated to be continous way heating, shell and tube heating, jacket type heating and heat exchanger heating in any one or Two kinds of combinations;Preferably continous way heats.
In above-mentioned preparation method step 2), the sieve precision of the pre-filtering processing can be 100 mesh~200 mesh, specifically It can be 100 mesh, 120 mesh, 100 mesh~120 mesh or 100 mesh~150 mesh;The pre-filtering processing uses gravity filtration, pressurizeed Filter and/or vacuum filter, it is 0.03MPa, 0.04MPa, 0.06MPa that the pre-filtering, which handles specific pressure, and filter medium can be The filter cloth and strainer that a variety of materials are done;The purpose of the pre-filtering processing is to remove solid in juice of sugar grass stalks, such as Stalk slag, dust.
In above-mentioned preparation method, the condition of the secondary filter operation is as follows: temperature can be 50~80 DEG C, concretely 55 DEG C, 60 DEG C, 70 DEG C, 55 DEG C~70 DEG C or 50 DEG C~75 DEG C, pressure can be 0.01MPa~0.5MPa, concretely 0.2MPa, 0.3MPa, 0.4MPa, 0.2MPa~0.4MPa or 0.5MPa~0.45MPa;Temperature can be 50~80 DEG C in the secondary filter It is the transmitance in order to increase film, increases feed liquid temperature, viscosity sugared in feed liquid can be reduced and increases mobility.
In the present invention, the purpose of secondary filter is microorganism, suspended impurity or the macromolecular complex removed in the filtrate A Matter meets the saturating luminance standard of product to ensure subsequent concentration material products obtained therefrom.
In above-mentioned preparation method, the molecular cut off of the microfiltration membranes can be 30000Da~80000Da;Concretely 30000Da, 50000Da, 80000Da, 30000Da~50000Da or 50000Da~80000Da;
The film transmitance of the microfiltration membranes can be 10%~99%, concretely 80%, 85%, 90%, 80%~90% Or 50%~95%;
The membrane material of the microfiltration membranes is selected from Kynoar, polysulfones, polyether sulfone, poly (aryl ether sulfone ketone), aluminium oxide, oxidation At least one of zirconium, titanium oxide and silica.
In above-mentioned preparation method step 4), the condition of the concentration operation is as follows: temperature can be 50~80 DEG C, specifically may be used Be 70 DEG C, 80 DEG C, 70~80 DEG C or 60~80 DEG C, vacuum degree can be 0.01MPa~0.08MPa, concretely 0.06MPa, 0.08MPa or 0.06MPa~0.08MPa.
The present invention also provides the functional food sugar grass syrup that above-mentioned preparation method is prepared.
In the present invention, preparing the apparatus system that the functional food sugar grass syrup uses includes pretreatment unit, film Filter device and evaporation concentration device;
The pretreatment unit includes juice of sugar grass stalks holding vessel A, heating device, sieve and equipment for separating liquid from solid, The holding vessel A discharge port is connected with the feed inlet of sieve and equipment for separating liquid from solid;
The film filter includes storage tank B, membrane module and storage tank C, the liquid outlet of the equipment for separating liquid from solid and institute State storage tank B feed inlet be connected, the discharge port of the storage tank B is connect with the feed inlet of the membrane module, the membrane module it is saturating It crosses liquid outlet to be connected with the import of the storage tank C, the outlet of the trapped fluid of the storage tank C is connected with the feed inlet of the storage tank B;
The evaporation concentration device includes concentration canister assembly, vacuum system, evaporation recycling component and steam-heating system;Institute The material liquid outlet for stating storage tank C is connected with the liquor inlet of the concentration canister assembly, and other systems are connected according to equipment requirement.
The trapped fluid that the outlet of the trapped fluid of the storage tank C passes through is the particulate matter of impervious film, is flowed back into storage tank B It goes, as liquid recycles in membrane module again, achievees the purpose that separation of solid and liquid.
In the present invention, enter in membranous system by pretreated material, can further remove microorganism in material, big Molecule and colloidal substance realize that the active principle in juice of sugar grass stalks utilizes.
The present invention is after juice of sugar grass stalks heating, and juice of sugar grass stalks is in pipeline and the closed environment of equipment Operation, avoids the dust and microbial contamination product in environment, is conducive to continuous production.
The invention has the following advantages that
(1) juice of sugar grass stalks has filtered out microorganism present in juice and macromolecular by membranous system in the present invention Particle, increase product safety and limpid degree.
(2) present invention is after juice of sugar grass stalks heating, and juice of sugar grass stalks is using pre-filtering processing and secondary mistake Filter is run in pipeline and the closed environment of equipment, is avoided the dust and microbial contamination product in environment, is conducive to connect Continuous production.
(3) present invention is in product preparation process, and the temperature of feed liquid is controlled at 50 DEG C~80 DEG C, this temperature range is to micro- life It is an extreme environment for object, microorganism will not grow, and less have metabolite generation, be conducive to the safety of product.
(4) present invention, because feed liquid temperature is no more than 80 DEG C, avoids the caramel that reduced sugar occurs in product preparation process Change and destroy the active material in juice of sugar grass stalks, is conducive to improve product quality.
(5) sugar grass syrup preparation method provided by the invention have it is easy to operate safely, be conducive to continuous production, be one The Green production process of a pure physics, the product of preparation are also pure natural product.
Specific embodiment
Experimental method used in following embodiments is conventional method unless otherwise specified.
The materials, reagents and the like used in the following examples is commercially available unless otherwise specified.
A kind of juice of sugar grass stalks that full constituent utilizes of the specific embodiment of the invention prepares sugar grass syrup method, adopts With following apparatus system, which includes juice of sugar grass stalks pretreatment unit, film filter and product concentration Device;
Wherein, pretreatment unit includes juice of sugar grass stalks heating part and equipment for separating liquid from solid, and heating equipment goes out Liquid mouth is connected with the feed inlet of equipment for separating liquid from solid;Being separated by solid-liquid separation sieve precision is 100 mesh or 120 mesh;Filter obtained by the screen to filtrate Liquid enters film filtering clarification;
Film filters clarifier, and the discharge port of equipment for separating liquid from solid is connected with the feed inlet of filter clarification film;Film filtering clarification Gained clear liquid enters enrichment facility concentration afterwards;
Concentration device for material liquid, the discharge port for clarifying film device are connected with the feed inlet of inspissator.
In following embodiments, juice of sugar grass stalks is harvesting growth and maturity sweet sorghum stalk, and roping is live to squeezing, It is once squeezed the juice on squeezer, for juice through filter screen filtration, the juice of acquisition is spare.
Embodiment 1, a kind of full constituent prepare the preparation method of sugar grass syrup using juice of sugar grass stalks
The method of the present invention specifically comprises the following steps: pretreatment, film clarification and concentration;
The juice of sugar grass stalks mixed liquor obtained through squeezing, after being warming up to 55 DEG C, the mixed liquor under the pressure of 0.06MPa It removes the gred by the screen to filtrate of 120 mesh, obtains ground the screen to filtrate liquid and carry out clarifying treatment under 55 DEG C, the pressure of 0.3MPa, it is clear The molecular cut off of clear film is 50000Da;The clarified solution that clarification obtains mixed liquor total amount 80% (film transmitance) enters inspissator, Feed liquid temperature is heated in inspissator to 80 DEG C, is carried out under the conditions of vacuum degree 0.08Mpa, juice of sugar grass stalks clarified solution is dense When being reduced to dry matter concentration and reaching 75%, natural functional food sugar grass syrup is obtained.
In above-mentioned treatment process, the main character that each stage obtains high juice of sugar grass stalks is as shown in table 1 below.
By table 1 it is found that in the method for obtained functional food sugar grass syrup prepared by the present invention, preprocessed sieve Wet slag amount is 0.89% after net filtration liquid, illustrates that most impurity can be removed, by secondary filter, (film crosses filtering in table 1 Liquid) color value significant decrease, illustrate that clarity significantly improves, the index of refraction being finally concentrated is 75.35%, passes through index of refraction testing number It is said that the amount of bright soluble sugar, good water soluble protein and vitamin synthetical recovery is preferable;Conductivity detection data is preferable Illustrate sufficiently to have recycled the mineral matter elements such as potassium, sodium, calcium, magnesium, iron, manganese, zinc and the copper of the high-content in juice of sugar grass stalks, To sum up illustrate the nutritional ingredient in energy full constituent recycling juice of sugar grass stalks of the invention.
Each stage of table 1 obtains the main character of high juice of sugar grass stalks
Embodiment 2, a kind of full constituent prepare the preparation method of sugar grass syrup using juice of sugar grass stalks
The method of the present invention specifically comprises the following steps: pretreatment, film clarification and concentration;
Specifically with the embodiment of the present invention 1, difference is: it is 60 DEG C that sugar grass, which mixes juice heating temperature, 0.04MPa's Mixed liquor removes the gred by the screen to filtrate of 100 mesh under pressure, obtains ground the screen to filtrate liquid and is clarified under the pressure of 0.4MPa Processing, the molecular cut off for clarifying film is 30000Da;The clarified solution that clarification obtains mixed liquor total amount 85% enters inspissator, Feed liquid temperature maintains 80 DEG C in inspissator, carries out under the conditions of vacuum degree 0.08MPa, juice of sugar grass stalks clarified solution is concentrated into When dry matter concentration reaches 75%, natural functional food sugar grass syrup is obtained.
In above-mentioned treatment process, the main character that each stage obtains high juice of sugar grass stalks is as shown in table 2 below.
By table 2 it is found that in the method for obtained functional food sugar grass syrup prepared by the present invention, preprocessed sieve Wet slag amount is 1.24% after net filtration liquid, illustrates that most impurity can be removed, by secondary filter, (film crosses filtering in table 2 Liquid) color value significant decrease, illustrate that clarity significantly improves, the index of refraction being finally concentrated is 76.12%, passes through index of refraction testing number It is said that the amount of bright soluble sugar, good water soluble protein and vitamin synthetical recovery is preferable;Conductivity detection data is preferable Illustrate sufficiently to have recycled the mineral matter elements such as potassium, sodium, calcium, magnesium, iron, manganese, zinc and the copper of the high-content in juice of sugar grass stalks, To sum up illustrate the nutritional ingredient in energy full constituent recycling juice of sugar grass stalks of the invention.
Each stage of table 2 obtains the main character of high juice of sugar grass stalks
Embodiment 3,
The method of the present invention specifically comprises the following steps: pretreatment, film clarification and concentration;
Specifically with the embodiment of the present invention 1, difference is: it is 70 DEG C that sugar grass, which mixes juice heating temperature, 0.03MPa's Mixed liquor removes the gred by the screen to filtrate of 100 mesh under pressure, obtains ground the screen to filtrate liquid and is clarified under the pressure of 0.2MPa Processing, the molecular cut off for clarifying film is 80000Da;The clarified solution that clarification obtains mixed liquor total amount 90% enters inspissator, Feed liquid temperature maintains 70 DEG C in inspissator, carries out under the conditions of vacuum degree 0.06MPa, juice of sugar grass stalks clarified solution is concentrated into When dry matter concentration reaches 78%, natural functional food sugar grass syrup is obtained.
In above-mentioned treatment process, the main character that each stage obtains high juice of sugar grass stalks is as shown in table 3 below.
By table 3 it is found that in the method for obtained functional food sugar grass syrup prepared by the present invention, preprocessed sieve Wet slag amount is 1.11% after net filtration liquid, illustrates that most impurity can be removed, by secondary filter, (film crosses filtering in table 1 Liquid) color value significant decrease, illustrate that clarity significantly improves, the index of refraction being finally concentrated is 78.05%, passes through index of refraction testing number It is said that the amount of bright soluble sugar, good water soluble protein and vitamin synthetical recovery is preferable;Conductivity detection data is preferable Illustrate sufficiently to have recycled the mineral matter elements such as potassium, sodium, calcium, magnesium, iron, manganese, zinc and the copper of the high-content in juice of sugar grass stalks, To sum up illustrate the nutritional ingredient in energy full constituent recycling juice of sugar grass stalks of the invention.
Each stage of table 3 obtains the main character of high juice of sugar grass stalks

Claims (7)

1. a kind of preparation method of functional food sugar grass syrup, includes the following steps: 1) to heat juice of sugar grass stalks;
(2) pre-filtering processing slagging-off is carried out to the juice of sugar grass stalks after heating, obtains filtrate A;
(3) the filtrate A is subjected to secondary filter using microfiltration membranes, obtains liquor B;
(4) liquor B is concentrated, the concentration for being concentrated into wherein dry is 70~80% to get high to the sweet tea of semisolid Fine strain of millet syrup.
2. preparation method according to claim 1, it is characterised in that: in step 1), it is described be heated to temperature be 50 DEG C~ 80℃。
3. preparation method according to claim 1 or 2, it is characterised in that: in step 2), the sieve of the pre-filtering processing Precision is 100 mesh~200 mesh;
The pre-filtering processing uses gravity filtration, pressure filtration and/or vacuum filter.
4. preparation method according to any one of claim 1-3, it is characterised in that: the condition of the secondary filter operation As follows: temperature is 50~80 DEG C, and pressure is 0.01MPa~0.5Mpa.
5. preparation method described in any one of -4 according to claim 1, it is characterised in that: the molecular cut off of the microfiltration membranes For 30000Da~80000Da;
The film transmitance of the microfiltration membranes is 10%~99%;
The membrane material of the microfiltration membranes is selected from Kynoar, polysulfones, polyether sulfone, poly (aryl ether sulfone ketone), aluminium oxide, zirconium oxide, oxygen Change at least one of titanium and silica.
6. preparation method according to any one of claims 1-5, it is characterised in that: in step 4), the concentration operation Condition it is as follows: temperature be 50~80 DEG C, reciprocal of duty cycle be 0.01MPa~0.08MPa.
7. the functional food sugar grass syrup that preparation method of any of claims 1-6 is prepared.
CN201910284225.7A 2019-04-10 2019-04-10 A kind of functional food sugar grass syrup and preparation method thereof Pending CN110016525A (en)

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CN112998230A (en) * 2021-04-02 2021-06-22 中国科学院近代物理研究所 A compound jam or fruit and vegetable jam prepared from sweet sorghum syrup, and its preparation method

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Application publication date: 20190716