Production process of high-purity sweet tea glycosides
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A production process and high-purity technology, which can be used in the preparation of sugar derivatives, sugar derivatives, and sugar derivatives, and can solve the problems of difficulty in industrialization, high cost, and cumbersome production process.
Active Publication Date: 2012-10-03
GUANGXI DAIYUAN VEGETABLE PROD
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The main reason is that these processes and technologies have the characteristics of high cost, extensive use of toxic organic reagents, cumbersome production process, etc., so that it is difficult to realize industrialization
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Embodiment 1
[0029] A production process for extracting high-purity rubusoside from Guangxi sweet tea leaves, comprising the following steps:
[0030] (1) Extraction: Take 1000kg of Guangxi sweet tea leaves, crush them and put them into an extraction tank, use tap water to extract 3 times in a slightly boiling state, add 8, 6, and 7 times the amount of tap water, and extract the first batch of materials for the third time As the first extraction solution of the second batch of materials, the extraction time is 1.5h, 1h, and 1h respectively, and the filter residue after each filtration enters the next extraction;
[0031] (2) Concentration: Concentrate the first two Guangxi sweet tea extracts to three times the weight of the dry sweet tea leaves, about 3000L;
[0032] (3) Flocculation and clarification: Cool the concentrated solution to 40~45°C, and then turn on the steam to keep the temperature within this range; add 0.3% water-soluble chitosan by weight of Guangxi sweet tea raw material, ...
Embodiment 2
[0045] A production process for extracting high-purity rubusoside from Guangxi sweet tea leaves, comprising the following steps:
[0046] (1) Extraction: Take 1000kg of Guangxi sweet tea leaves, crush them and put them into an extraction tank, use tap water to extract 3 times in a slightly boiling state, add 8, 6, and 7 times the amount of tap water, and extract the first batch of materials for the third time As the first extraction solution of the second batch of materials, the extraction time is 1.5h, 1h, and 1h respectively, and the filter residue after each filtration enters the next extraction;
[0047] (2) Concentration: Concentrate the first two Guangxi sweet tea extracts to three times the weight of the dry sweet tea leaves, about 3000L;
[0048](3) Flocculation and clarification: Cool the concentrated solution to 40~45°C, and then turn on the steam to keep the temperature within this range; add 0.3% water-soluble chitosan by weight of Guangxi sweet tea raw material, s...
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Abstract
The invention discloses a production process of high-purity sweet tea glycosides. The production process comprises the steps of extracting, condensing, flocculating, clarifying, centrifugally separating, refining macroporous resin, ion exchange resin decolorizing, using desalting resin for desalting, conducting composite decolorizing and condensing, and then conducting spray-drying on thick paste to obtain powder with color of milk white to white, namely, high-purity sweet tea glycosides with content of not less than 98%. The production process has the advantages that the high-purity debitterized sweet tea glycosides with content of not less than 98% and color of milk white to white can be produced in batch, so that the problem that the product can not be produced in batch on the market; the product can occupy the sweetener market; a feasible production process path is found to produce sweet tea glycosides in batch. According to chemical component characteristic of Guangxi sweet tea, key production links such as flocculating, clarifying, macroporous resin refining, ion exchange resin decolorizing and debitterizing, desalting resin for desalting and debitterizing, composite decolorizing and on the like are combined effectively.
Description
technical field [0001] The invention relates to the extraction of rubusoside, in particular to a production process for extracting high-purity rubusoside from Guangxi sweet tea leaves. Background technique [0002] Commercially available sweet tea extract (specification: 70% rubusoside, HPLC detection) is made from dried leaves of Rubus Suavissmus S and Lee, the sweet tea of the genus Rubus of Rosaceae, extracted with water→filtered→macroporous resin→ion resin→concentrated→ For products produced by drying and other processes, the purity of the active ingredient rubusoside is ≤74%, the color is light yellow, and has a bitter aftertaste, which limits the market for this product. [0003] Sweet tea mainly contains rubusoside, sweet tea polyphenols, flavonoids, ellagic acid, protein, amino acid, chlorophyll and other ingredients, which are not easy to separate and purify, making it difficult for the purity and color of the product rubusoside to meet high-quality requirements, ...
Claims
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