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Purple sweet potato beverage and preparation method thereof
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A purple sweet potato and beverage technology, applied in the field of food deep processing, to achieve the effect of maintaining flavor, saving cost and low energy consumption
Active Publication Date: 2013-04-24
CHINA AGRI UNIV
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Summary
Abstract
Description
Claims
Application Information
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Problems solved by technology
[0007] The purpose of the present invention is to overcome the shortcomings of the prior art, provide a purple sweet potato beverage and its preparation method, focus on solving the problems of cooking taste, layering, etc., and realize the industrial production of high-quality purple sweet potato beverage
Method used
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Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0054] Prepare purple sweet potato drink of the present invention with following steps:
[0055] (1) material preparation: select the purple sweet potato of single variety for use, remove all moldy and rotten purple sweet potatoes, and control the purple sweet potato with mechanical damage area greater than 2% within 1%;
[0056] (2) Cleaning: Utilize the automatic cleaning machine to clean the above-mentioned purple sweet potato, and wash it three times to remove dust, microorganisms and other impurities on the surface of the purple sweet potato;
[0057] (3) Slicing: slice the cleaned purple sweet potato with a slicer, and the thickness is 3mm;
[0058] (4) Beating: the purple sweet potato slices are transported to the beating machine, and water is added in proportion (the mass ratio of purple sweet potato and water is 1:3) for beating;
[0059] (5) Ingredients: add sugar (8wt% of the purple sweet potato juice quality) and malic acid (0.2wt% of the purple sweet potato juice...
Embodiment 2
[0068] Prepare purple sweet potato drink of the present invention with following steps:
[0069] (1) material preparation: processing purple sweet potato selects single variety, removes all moldy and rotten purple sweet potatoes, and controls the purple sweet potato with mechanical damage area greater than 2% within 1%;
[0070] (2) Cleaning: Utilize the automatic cleaning machine to clean the above-mentioned purple sweet potato, and clean it five times to remove dust, microorganisms and other impurities on the surface of the purple sweet potato;
[0071] (3) Slicing: slice the cleaned purple sweet potato with a slicer, and the thickness is 1mm;
[0072] (4) Beating: the purple sweet potato slices are transported to the beating machine, and water is added in proportion (the mass ratio of purple sweet potato and water is 1:5) for beating;
[0073] (5) Ingredients: add sugar (2% of the quality of the purple sweet potato juice) and citric acid (1.2% of the quality of the purple ...
Embodiment 3
[0084] Prepare purple sweet potato drink of the present invention with following steps:
[0085] (1) material preparation: processing purple sweet potato selects single variety, removes all moldy and rotten purple sweet potatoes, and controls the purple sweet potato with mechanical damage area greater than 2% within 1%;
[0086] (2) Cleaning: Utilize the automatic cleaning machine to clean the above-mentioned purple sweet potatoes, and wash them three times to thoroughly remove the dust, microorganisms and other impurities on the surface of the purple sweet potatoes;
[0087] (3) Slicing: slice the cleaned purple sweet potato with a slicer, and the thickness is 6mm;
[0088] (4) Beating: the purple sweet potato slices are transported to the beating machine, and water is added in proportion (the mass ratio of purple sweet potato and water is 1:10) for beating;
[0089] (5) Ingredients: add sugar (16% of the purple sweet potato juice quality) and citric acid and malic acid (res...
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PUM
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Abstract
The invention relates to a purple sweet potato beverage and a preparation method thereof. The purple sweet potato beverage comprises purple sweet potato juice and auxiliary materials, wherein the purple sweet potato juice is prepared from purple sweet potatoes and water of which the weight is 3-10 times of the weight of the purple sweet potatoes, and the auxiliary materials are sugar and citric acid and / or malic acid. The smell of cooking can be effectively reduced, and the good flavor and nutrient substances of the purple sweet potatoes can be retained through fine selecting raw materials, and adopting ultra high pressure sterilization technology for sterilization with constant treatment temperature and short treatment time; in addition, an ageing process is also increased after the sterilization, and the beverage is stood for a period of time at a certain temperature to accelerate the ageing of starch so as to effectively avoid the occurrence of a layering effect; therefore, the stability of the product is greatly improved. In the purple sweet potato beverage, the Brix of soluble solid state materials is greater than or equal to 10 DEG, and the pH (potential of hydrogen) is 3-4;all key technical indexes of the purple sweet potato beverage are higher than that of thermally sterilized products; and microbial indexes conform to GB19297-2003 regulations.
Description
technical field [0001] The invention relates to a beverage processed from purple sweet potatoes as a main raw material and a preparation method thereof, belonging to the technical field of food deep processing. Background technique [0002] Purple sweet potato is a general term for a class of sweet potato varieties whose roots, stems and heart leaves are all purple. It not only has the characteristics of high content of ordinary sweet potato cellulose, carotene, crude protein, vitamin C, iron and calcium, but also rich in anthocyanins, the content of which can reach 20-180mg / g in skin and flesh, and has anti-mutation and anti-oxidation properties. , lower blood pressure, protect the liver, improve immunity, prevent cardiovascular diseases and other functions. Purple sweet potato has multiple functions such as nutrition, coloring, and health care, and it has attracted more and more attention at home and abroad. Developed countries such as Japan and the United States regard i...
Claims
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Application Information
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