Using attenuated-total-reflection Fourier-transformed spectroscopy to reveal molecular structural differences among willow (Salix spp.) foliage cultivars in relation to their potential as fodders
| Autor: | Thomas Traynor, Mairead Campbell, Katerina Theodoridou, Jordi Ortuño |
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| Rok vydání: | 2021 |
| Předmět: |
Willow
Animal feed molecular structure agroforestry Nutrient Bioenergy Ruminant Spectroscopy Fourier Transform Infrared Dietary Carbohydrates Animals Dry matter Cultivar willow Nutrition and Dietetics biology Salix Ruminants biology.organism_classification Animal Feed Plant Leaves Horticulture multivariate analysis Proanthocyanidin ruminant nutrition Agronomy and Crop Science ATR-FTIR Food Science Biotechnology |
| Zdroj: | Ortuño, J, Traynor, T, Campbell, M & Theodoridou, K 2021, ' Using attenuated-total-reflection Fourier-transformed spectroscopy to reveal molecular structural differences among willow (Salix spp.) foliage cultivars in relation to their potential as fodders ', Journal of the Science of Food and Agriculture . https://doi.org/10.1002/jsfa.11666 |
| ISSN: | 1097-0010 |
| Popis: | BACKGROUNDWillow trees represent a suitable species for the development of agroforestry systems, integrating bioenergy and animal feed production. However, there is a lack of information regarding the suitability of leaves and stems, considered a bioenergy by-product, as animal feed. The aim of this study was the employment of attenuated total reflectance Fourier transform infrared spectroscopy (550–4000 cm−1) to investigate differences in the nutrient molecular structure profile of leaves and stems of selected willow cultivars to understand their utility for ruminant nutrition.RESULTSUnivariate analysis of variance of leaves showed lower intensities of cellulosic compounds and higher of protein in comparison with stems, which suggests higher leaf dry matter and protein digestibility. Spectral analyses revealed differences in both plant parts between Salix cv. Terra Nova and Salix cv. Beagle, cv. Resolution, and cv. Olof. The higher α-helix to β-sheet ratio, which is related to a higher protein digestibility, was in correlation with the lower content of condensed tannins. Principal component and agglomerative hierarchical cluster analyses showed significant discrimination among willow cultivars in the cellulosic, structural carbohydrate, and amide regions, whereas differences were less evident for total carbohydrate and lipid-related regions.CONCLUSIONThe application of attenuated total reflectance Fourier transform infrared molecular spectroscopy is an effective tool to rapidly identify spectral features related to the nutritional composition of willow foliage and to discriminate between cultivars and parts of the plant. This information would be useful to optimize the use of willow fodders in agroforestry systems. |
| Databáze: | OpenAIRE |
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