A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä
Low Concentrations of Protein- and Fiber-Bound Proanthocyanidins in Sainfoin (Onobrychis viciifolia) Are Stable across Accessions, Growth Stages, and Drought Conditions
Tekijät: Malisch Carsten S, Lewandowski Lasse, Salminen Juha-Pekka, Taube Friedhelm, Luscher Andreas
Kustantaja: AMER CHEMICAL SOC
Julkaisuvuosi: 2020
Journal: Journal of Agricultural and Food Chemistry
Tietokannassa oleva lehden nimi: JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
Lehden akronyymi: J AGR FOOD CHEM
Vuosikerta: 68
Numero: 28
Aloitussivu: 7369
Lopetussivu: 7377
Sivujen määrä: 9
ISSN: 0021-8561
eISSN: 1520-5118
DOI: https://doi.org/10.1021/acs.jafc.0c01540(external)
Tiivistelmä
Proanthocyanidins (PAs) in forages may be present in either soluble (S-PA) or non-extractable (NE-PA) form. Despite potential benefits of the NE-PA in ruminant nutrition, few studies have analyzed NE-PA in forages. This study examined the impact of a range of conditions on S-PA as well as protein- and fiber-bound PA (the NE-PA fractions) in sainfoin (Onobrychis viciifolia). Thus, five sainfoin accessions in either generative or vegetative stage were subjected to drought for 18 weeks and sampled repeatedly for PA analysis. Drought-stressed plants increased S-PAs on average by 59% across all accessions yet only in the vegetative stage. In contrast, NE-PA concentrations were generally lower (on average 15% of the total PAs) and unaffected by drought. Thus, for sainfoin, the low and stable concentration of NE-PAs across accessions, growth stages, and drought conditions should have a low, predictable impact on the future sainfoin analyses and feeding studies.
Proanthocyanidins (PAs) in forages may be present in either soluble (S-PA) or non-extractable (NE-PA) form. Despite potential benefits of the NE-PA in ruminant nutrition, few studies have analyzed NE-PA in forages. This study examined the impact of a range of conditions on S-PA as well as protein- and fiber-bound PA (the NE-PA fractions) in sainfoin (Onobrychis viciifolia). Thus, five sainfoin accessions in either generative or vegetative stage were subjected to drought for 18 weeks and sampled repeatedly for PA analysis. Drought-stressed plants increased S-PAs on average by 59% across all accessions yet only in the vegetative stage. In contrast, NE-PA concentrations were generally lower (on average 15% of the total PAs) and unaffected by drought. Thus, for sainfoin, the low and stable concentration of NE-PAs across accessions, growth stages, and drought conditions should have a low, predictable impact on the future sainfoin analyses and feeding studies.