Stevia rebaudiana sugar liquid extraction device

Abstract

The invention discloses a stevia rebaudiana sugar liquid extraction device and aims to provide a tool through which liquid is automatically replenished in acid, alkali and distilled water washing in stevia rebaudiana sugar liquid extraction, and liquid levels are automatically controlled. The device consists of a siphon tube, a liquid storage ball chromatographic column, a liquid storage tank, a control guide tube and a liquid outlet guide tube, wherein the siphon tube is an'h'-shaped glass tube; an airbag is arranged at the top end of the siphon tube; a density switch is arranged in the middle of the siphon tube; and a piston valve is arranged at the front section of the siphon tube. The stevia rebaudiana sugar liquid extraction device is simple in structure, convenient to use and low incost, automatic washing with acids, alkalis and distilled water can be well achieved in a stevia rebaudiana sugar liquid extraction process, an operator does not need to watch over and replenish liquid, the time can be saved, and the working efficiency can be improved.

Description

technical field [0001] A device for extracting stevia sugar solution, relating to the technical field of experimental equipment, more specifically, a device for automatically adding liquid to wash a chromatography column during the extraction process of stevia sugar solution, which can effectively control the liquid in the chromatography column The surface height saves the operator's experiment time and improves the operation efficiency. Background technique [0002] The sweetness of steviol glycosides contained in stevia leaves is 250-300 times that of sucrose, but the calories contained are only 1 / 300 of sucrose. It is the sweetest natural sweetener known so far. There are ten main sweet components contained in stevia leaves: steviol glycoside (STV), steviol biglycoside (STB), rebaudioside A, B, C, D, F, M (RA, RB, RC, RD, RF, RM), dulcoside A (DA) and rubusoside (RUB). The taste and sweetness of different steviol glycosides are different. The sweetness of RA is higher t...

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Problems solved by technology

[0003] The determination of stevioside glycosides generally adopts high-performance liquid chromatography, which has high accuracy. However, the purity of the stevioside extract is high. If there are many impurities in the sugar solution, it is difficult to run a stable baseline during the measurement operation. It is difficult to accurately identify the peaks of each glycoside, which affects the accuracy of the determination and calculation of the content of each glycoside, so the impurities contained in the sugar solution should be removed as much as possible during the extraction of the sugar solution

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