Method for bioconversion of mogroside extracts into siamenoside I
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United States of America Patent
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Nov 23, 2021
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Apr 1, 2021
app pub date -
Sep 26, 2019
filing date -
Sep 26, 2019
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Abstract
The present invention provides a method for bioconversion of mogroside extracts into siamenoside I, comprising: using (1) DbExg1 protein or (2) a microorganism expressing the DbExg1 protein to contact or to cultivate with the mogroside extracts. The present invention can convert the mogroside extracts into siamenoside I, which has a higher sweetening power and better taste than other mogrosides. The method of the present invention uses a microorganism expressing the responsible enzyme, DbExg1, which was identified as a mediator of mogroside V conversion into siamenoside I in the present invention, so that siamenoside I was preferentially produced. Thus, the use of the method of the present invention provides a feasible approach to produce large quantities of the natural sweetener, siamenoside I, which can then be applied in several industries.
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