Granular bioplastic biocontrol composition
US8734862B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2012 |
| Grant date | May 27, 2014 |
| Priority date | — |
| Expiry date | Aug 9, 2032 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA01N63/38
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
Previous research demonstrated that aflatoxin contamination in corn is reduced by field application of wheat grains pre-inoculated with the non-aflatoxigenic Aspergillus flavus strain NRRL 30797. We evaluated the reliability and efficiency of replacing wheat grains with the novel bioplastic formulation Mater-Bi® to serve as a carrier matrix to formulate strain NRRL 30797. Mater-Bi® granules were inoculated with a conidial suspension of NRRL 30797 to achieve a final cell density of ˜log 7 conidia/granule. Incubation of 20-g soil samples receiving a single Mater-Bi® granule for 60-days resulted in log 4.2 to 5.3 propagules of A. flavus/g soil for microbiologically active and sterilized soil, respectively. The bioplastic formulation was highly stable; Mater-Bi® is a suitable substitute for biocontrol applications of A. flavus NRRL 30797.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.