Postharvest production and enhancement of resveratrol and piceatannol in sugarcane
US9227898B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 28, 2013 |
| Grant date | Jan 5, 2016 |
| Priority date | — |
| Expiry date | Jan 28, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E50/30
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
It has been discovered that irradiating the cut side of sugarcane billets, preferably 2-50 mm, with UVB or UVC light or combinations thereof initiates stilbene production, particularly resveratrol and piceatannol. In an embodiment the cut sides of sugarcane billets of a predetermined thickness are irradiated with Ultraviolet-C or Ultraviolet-B light or combinations thereof at an intensity and for a duration of time sufficient to produce a significant increase in a level of one or more stilbenes in the irradiated billets compared to a level of stilbenes in billets that are not irradiated; and the irradiated sugarcane billets are maintained for at least about three days up to about 20 days, to optimize stilbene levels.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.