Crude extraction technology of stevioside of stevia rebaudiana
A stevia and crude extraction technology, applied in the directions of sugar derivatives, sugar derivatives, sugar derivatives preparation, etc., can solve the problems that cannot well meet the needs of modern steviol glycosides, the cleanliness of the extract is poor, and the stevia sugar problems such as large loss of glycosides, to achieve the effect of convenient subsequent processing, low cost of use and high cleanliness
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Embodiment 1
[0018] The present invention comprises the following steps:
[0019] Step 1: Cut off the leaves of Stevia rebaudiana and chop the cut leaves;
[0020] Step 2: mix water and citric acid, configure a citric acid solution with a mass percentage of 0.35%, and pour the configured citric acid solution into the container;
[0021] Step 3: At a room temperature of 10°C, soak the cut stevia leaves in the citric acid solution prepared in step 2 and use manual stirring to mix the stevia leaves with the citric acid solution evenly, and soak for 15 minutes. then collect the liquid;
[0022] Step 4: Repeat the operation of Step 3 once, and concentrate the liquid collected in multiple operations;
[0023] Step 5: Filter the liquid with a filter with a mesh size of 1 cm to obtain a filtrate.
Embodiment 2
[0025] Step 1: Cut off the leaves of Stevia rebaudiana and chop the cut leaves;
[0026] Step 2: mix water and citric acid, configure a citric acid solution with a mass percentage of 0.35%, and pour the configured citric acid solution into the container;
[0027] Step 3: At a room temperature of 18°C, soak the cut stevia leaves in the citric acid solution prepared in step 2 and use manual stirring to mix the stevia leaves with the citric acid solution evenly, and soak for 18 minutes. then collect the liquid;
[0028] Step 4: Repeat the operation of Step 3 twice, and concentrate the liquid collected in multiple operations;
[0029] Step 5: Filter the liquid with a filter with a mesh size of 0.7 cm to obtain a filtrate.
Embodiment 3
[0031] Step 1: Cut off the leaves of Stevia rebaudiana and chop the cut leaves;
[0032] Step 2: mix water and citric acid, configure a citric acid solution with a mass percentage of 0.35%, and pour the configured citric acid solution into the container;
[0033] Step 3: At a room temperature of 28°C, soak the cut stevia leaves in the citric acid solution prepared in step 2 and use manual stirring to mix the stevia leaves with the citric acid solution evenly, and soak for 20 minutes. then collect the liquid;
[0034] Step 4: Repeat the operation of Step 3 twice, and concentrate the liquid collected in multiple operations;
[0035] Step 5: Filter the liquid with a filter with a mesh size of 0.3 cm to obtain a filtrate.
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