Composite sweetening agent

Abstract

The invention relates to a composite sweetening agent, belongs to the technical field of food additives, and solves the technical problem of providing the composite sweetening agent being good in mouth feel. The sweetening agent is synthesized through whole-cell catalysis, rebaudioside-A is used as a substrate, recombinant microorganisms are used as a catalyst, and in the presence of cane sugar, zinc chloride and trisodium citrate, the substrate is catalyzed for a reaction, so that a sweetening agent composition is obtained. A whole cell catalytic transformation method is adopted, the method is simple, and the transformation condition is controlled, so that the composition containing rebaudioside-D and rebaudioside-M in a specific compounding ratio can be obtained, and the production costcan be reduced. The mouth feel of the composite sweetening agent is similar to that of the cane sugar, any artificially-synthesized components are not introduced, and the composite sweetening agent ispurely natural, free from energy, and good in water solubility.

Description

technical field [0001] The invention relates to a compound sweetener, which belongs to the technical field of food additives. Background technique [0002] Sweeteners are substances that impart sweetness to soft drinks. At present, the most used natural sweetener is sucrose, which can provide people with a sweet taste, and its taste is generally accepted by people. However, sucrose has high calories, and diabetics and obese people need to be strict in their diets. Control, therefore, requires non-caloric or low-calorie sweeteners that replace sucrose. [0003] Steviol glycosides is a class of steviol glycosides extracted from the leaves of Stevia rehaudiana, which has high sweetness (250-300 times that of sucrose), low calorie (1 / 300 of sucrose) ), non-toxic and side effects, no carcinogens, food safety and other advantages, has been widely valued by the scientific community, industry and other fields, and has become the third development value and health respected after s...

AI Technical Summary

Problems solved by technology

[0005] Although stevioside and rebaudioside A have low calories and high sweetness, they also have a bitter aftertaste other than sweetness, and their taste and flavor cannot be compared with sucrose

Although rebaudioside D tastes similar to sucrose, its solubility is not good

And at present, although there are some sweetener compositions, their preparation methods are obtained by compounding relatively pure raw materials. This method has high requirements on the purity of raw materials, and the raw materials need to be purified before compounding, and the cost is relatively high.

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