Projects per year
High-value coproducts can greatly improve the feasibility of utilizing plant feedstocks for biorefining and biofuel production. Plant polyphenolics have potential application in the pharmaceutical and cosmetic industries. Orchard grass varieties have been noted for accumulation of polyphenolic compounds, and the current study determined the soluble phenol profile and content in the orchard grass variety ‘Abertop’. Hydroxycinnamates and flavonoids were monitored during the transition from vegetative to flowering stage at maximum crop yield. Caffeic acid derivatives, related to bioactives in the Asian medicinal herb Salvia miltiorrhiza, and novel hydroxycinnamate–flavone conjugates were also identified in extracts. Harvest yields of hydroxycinnamates and flavonoids ranged from 2.6 to 4.0 kg/ha and from 2.1 to 5.1 kg/ha, respectively. Abundant compounds showed high levels of antioxidant activity comparable with that of trolox. Minimal changes in soluble phenol content and composition were observed after ensiling with the exception of increases in caffeic acid, a caffeic acid derivative, and a caffeic acid breakdown product, dihydroxystyrene.
|Number of pages||8|
|Journal||Journal of Agricultural and Food Chemistry|
|Early online date||31 Dec 2013|
|Publication status||Published - 15 Jan 2014|
- Dactylis glomerata
- orchard grass
- phenolic acid esters
- flavonoid glycosides
- caffeic acid derivatives
- Caffeic Acids/analysis
- Coumaric Acids/analysis
- Animal Feed
FingerprintDive into the research topics of 'Soluble Phenolic Compounds in Fresh and Ensiled Orchard Grass (Dactylis glomerata L.), a Common Species in Permanent Pastures with Potential as a Biomass Feedstock'. Together they form a unique fingerprint.
- 1 Finished
Optimising energy output and biorefining
Donnison, I., Gallagher, J., Shah, I. & Winters, A.
Biotechnology and Biological Sciences Research Council
01 Apr 2012 → 31 Mar 2017
Project: Externally funded research