| 摘要 |
PROBLEM TO BE SOLVED: To provide a fermented citrus increasing health function-improving action and so increasing its added value and to provide a method for producing the fermented citrus. SOLUTION: This fermented citrus is obtained by microbial fermentation treatment of a fermentation raw material comprising a citrus fruit or a part thereof using Aspergillus niger or Aspergillus awamori. The fermented citrus includes 8-hydroxyhespertin, or 8-hydroxynaringenin and 6-hydroxynaringenin. Fravanone aglycone such as hesperetin or naringenin is also contained therein. The fermented citrus is produced by pre-cultivating treatment of shaking culture in an aerobic condition and of a medium containing the Aspergillius niger, inoculation of the medium into the fermentation raw material and microbial fermentation treatment thereof. The fermentation period of the microbial fermentation treatment is preferably 2-14 days. The juice waste after squeezing the juice from the citrus fruit is preferably used as the fermentation raw material. |
