A kind of preparation method of sweet potato beverage
Technical field
The present invention relates to a kind of preparation method of sweet potato beverage, belong to the food and drink field.
Background technology
Sweet potato (popular name Ipomoea batatas, pachyrhizus), its place of production almost spreads all over all over the world, is a kind of common people beauty treatment of generally acknowledging, the nutraceutical of toxin expelling class.The present existing method of using sweet potato to make beverage as primary raw material mainly is with after fresh sweet potato peeling, making beating, filtering, and directly makes muddy type beverage.The sweet potato beverage that uses this conventional method to make, the potato slurry particle of its liquid inner suspension is more, muddy opaque, and the suspension post precipitation that beverage is divided in Packaging Bottle is two-layer up and down, not only allow on people's sense organ uncomfortable, and the taste of beverage is relatively poor, has had a strong impact on the market sale of sweet potato beverage.
Summary of the invention
The objective of the invention is for a kind of preparation method of sweet potato beverage is provided, this beverage is on the basis of conventional machining process, the process that adopts low temperature lixiviate and enzyme to handle, can be made into that potato juice color and luster is yellowish, the clarification type sweet potato beverage of clear, this clarification type sweet potato beverage is sweet and sour taste not only, and mouthfeel is smooth, and fragrance is pleasant, nutritious, be fit to very much masses and drink.
In order to achieve the above object, the present invention adopts following technical scheme to realize.
A kind of preparation method of sweet potato beverage, its primary raw material is: sweet potato; Batching is: citric acid, sucrose, honey, pectase, agar, gelatin, CMC.
Its preparation method is as follows:
Fresh sweet potato is cleaned up, use skinning machine that the epidermis of sweet potato is taken off, use the sweet potato after chopping equipment will be removed the peel to be cut into the potato silk then, the width of potato silk, thickness is 0.2~0.3 centimetre, length is 3~5 centimetres, with the potato silk that cuts, be presented in the soaking box of making by glass or plastics, adding concentration is 0.1% aqueous citric acid solution in soaking box, aqueous citric acid solution is controlled at 10 ℃ to cover potato silk degree of being with the temperature in the soaking box, soaks after 24 hours (to make the abundant stripping of soluble solid in the potato silk), with gauze elimination potato silk, promptly make sweet potato A immersion liquid; Sweet potato A immersion liquid is presented in glass or the plastic containers, add an amount of citric acid the pH value of sweet potato A immersion liquid is adjusted to 4.5, in sweet potato A immersion liquid, add pectase preparation then, the weight ratio of sweet potato A immersion liquid and pectase preparation is 1: 0.0004, with sweet potato A immersion liquid and pectase preparation mixing and stirring, it is remained under 40 ℃ of temperature environments, processing reaction 50 minutes, promptly make B solution, use heating apparatus that B solution is heated to 100 ℃ temperature then, after the temperature maintenance 2 minutes, kill pectase, promptly make C solution; In C solution, add additive sucrose, CMC, gelatin, agar, honey respectively, its weight ratio is: C solution: sucrose: CMC: gelatin: agar: honey=1: 0.06: 0.0012: 0.001: 0.0008: 0.001), to add the C solution mixing and stirring of additive in described ratio after, promptly make D solution; After using filter that D solution is filtered, D solution is packed in (225 milliliters) vial, after employing pasteurization methods or high-temperature sterilization method are carried out sterilization treatment to the good product of can, promptly made the sweet potato beverage of finished product with vacuum filling equipment.
Description of drawings
No accompanying drawing.
The present invention is described in further detail below in conjunction with embodiment.
The specific embodiment
Embodiment
Primary raw material used in the present invention is a sweet potato, and its batching is: citric acid, sucrose, honey, pectase, agar, gelatin, CMC.
Step 1: water cleans up fresh, AT sweet potato, uses skinning machine that the epidermis of sweet potato is taken off, and uses the sweet potato after chopping equipment will be removed the peel to be cut into the potato silk then, and the width of potato silk, thickness are 0.2 centimetre, and length is 4 centimetres;
Step 2: with the potato silk that cuts, be presented in the soaking box of making by glass or plastics, adding concentration is 0.1% aqueous citric acid solution in soaking box, aqueous citric acid solution is to cover potato silk degree of being, temperature in the soaking box is controlled at 10 ℃, soak after 24 hours (making the abundant stripping of soluble solid in the potato silk), use gauze elimination potato silk then, promptly make sweet potato A immersion liquid;
Step 3: sweet potato A immersion liquid is presented in glass or the plastic containers, add an amount of citric acid the pH value of sweet potato A immersion liquid is adjusted to 4.5, in sweet potato A immersion liquid, add pectase preparation then, the weight ratio of sweet potato A immersion liquid and pectase preparation is 1: 0.0004, with sweet potato A immersion liquid and pectase preparation mixing and stirring, it is remained under 40 ℃ of temperature environments, and processing reaction 50 minutes is promptly made B solution;
Step 4: use heating apparatus that B solution is heated to 100 ℃ temperature, temperature maintenance was killed pectase after 2 minutes, promptly made C solution;
Step 5: in C solution, add additive sucrose, CMC, gelatin, agar, honey respectively, its weight ratio is: C solution: sucrose: CMC: gelatin: agar: honey=1: 0.06: 0.0012: 0.001: 0.0008: 0.001, to add the C solution mixing and stirring of additive in described ratio after, promptly make D solution;
Step 6: after using filter that D solution is filtered again, with vacuum filling equipment D solution is packed in 225 milliliters of vials, after adopting pasteurization methods or high-temperature sterilization method that the good product of can is carried out sterilization treatment, promptly made the sweet potato beverage of finished product.
In the main method of preparation sweet potato beverage of the present invention; be to use citric acid that the pH value of sweet potato A immersion liquid is adjusted into 4.5; described sweet potato A immersion liquid is 1: 0.0004 with the mixed weight ratio of pectase preparation; the weight ratio of described C solution and additive sucrose, CMC, gelatin, agar, honey is 1: 0.06: 0.0012: 0.001: 0.0008: 0.001; as long as used above preparation technology and ratio, promptly fall into protection scope of the present invention.