A - Papers appearing in refereed journals
Moscoso, C. J., Morgan, S. A. and Rivero, M. J. 2019. The Effect of Drying Methods on Water-Soluble Carbohydrates and Crude Protein Concentrations and Their Ratio in Two Perennial Ryegrass Cultivars. Agronomy. 9 (7), p. 383.
|Authors||Moscoso, C. J., Morgan, S. A. and Rivero, M. J.|
The objective of this study was to assess the joint effect of perennial ryegrass cultivars and drying methods on concentrations of water-soluble carbohydrates (WSC) and crude protein (CP) and WSC/CP ratio. AberMagic AR1 and Expo AR1 forage were collected in December 2016, March, June, September and November 2017 and either oven-dried at 60 °C for 48h (OD_60), at 80 °C for 16h (OD_80), frozen at -80 °C for 48h then freeze-dried (-80_FD), or flash-frozen with liquid N then freeze-dried (LN_FD). Data were analyzed by ANOVA in a factorial design with cultivar and drying method as factors. AberMagic AR1 had between 9.0 to 31.5% higher WSC concentration than Expo AR1 in the four samplings. Freeze-drying preserved more WSC than oven-drying treatments (+22.7%), particularly in June. The CP concentration of Expo AR1 was higher only in December (+6.8%), and was 22.9 and 10.9% higher in OD_60 samples compared to LN_FD samples in December and November, respectively. The WSC/CP ratio varied in June, being greater in AberMagic AR1 (+36.1%). Drying method affected WSC/CP ratio in December, June and November where freeze-drying produced greater ratios. Drying techniques generated differences in WSC, CP and WSC/CP ratio, which may affect the accuracy of the estimated impacts of forages on productivity and N use efficiency.
|Keywords||Lolium perenne; Leaves; High sugar grasses; Oven-drying; Freeze-drying; Liquid nitrogen; Nitrogen use efficiency|
|Year of Publication||2019|
|Journal citation||9 (7), p. 383|
|Digital Object Identifier (DOI)||doi:10.3390/agronomy9070383|
|Open access||Published as green open access|
|Funder project or code||S2N - Soil to Nutrition - Work package 2 (WP2) - Adaptive management systems for improved efficiency and nutritional quality|
|Funder||Biotechnology and Biological Sciences Research Council|
|Online||16 Jul 2019|
|Publication process dates|
|Accepted||14 Jul 2019|
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