Purified pyrroloquinoline quinone fortified food
AssigneeShanghai Medical Life Science Research Center, Ltd., Co.
InventorsJianxin Gu, Xiaojing Yun, Xiaoning Chen, Si Zhang, Junwu Yang, Yihong Wu
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Abstract
Food products fortified by purified PQQ and methods of application and production are disclosed. A method of preserving a food product comprising admixing an effective amount of purified PQQ or a compound containing purified PQQ derivatives with a foodstuff to provide an inhibiting means to microorganism growth in the food product.
Claims25
A method for preserving a food product comprising admixing an effective amount of purified PQQ or a compound containing purified PQQ derivatives with a foodstuff to provide an inhibiting means to microorganism growth in the food product.
A processed food product comprising:
- a food portion fortified with an effective amount of purified PQQ or a compound containing effective amount of purified PQQ derivatives for preserving the food portion.
A method of preparing purified PQQ comprising the steps:
- cultivating a strain of bacteria selected from the group consisting of Hyphomicrobium strains, methylophage thalassica strain and thiobacillus strain in a culture medium, inducing bacteria mutation until a lethal rate of the bacteria reaches 70%-80%,
- selecting a mutant bacteria strain which has the highest PQQ yield among the survived bacteria strains,
- cultivating the selected mutant bacteria strain,
- collecting supernatant of the culture medium,
- isolating PQQ from the supernatant by chromatography,
- purifying PQQ and crystallizing PQQ.
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Dependencies are inferred from the claim text.