Claim · model-written summary
Extractable CT determined with vanillin–HCl was generally higher than extractable CT determined with butanol–HCl.
- Taxon
- tropical legumese0
- Outcome
- Extractable CT determined with vanillin–HCle7
- Direction
- highere7
- Comparator
- extractable CT determined with butanol–HCle7
Not reportedMaterialGeneCompoundOrgan / stageInteractorInteractor roleSecond interactorSecond interactor roleTreatmentSettingValueQualifier
Verbatim
e0“leaves of tropical legumes grown in both Colombia and Northern Australia”
e7“Extractable CT determined with vanillin–HCl was generally higher than extractable CT determined with butanol–HCl”
Title
Felicity S Jackson; Tom N Barry; Carlos Lascano; et al. Journal of the Science of Food and Agriculture 1996. doi:10.1002/(sici)1097-0010(199605)71:1<103::aid-jsfa554>3.0.co;2-8
Other claims from this paper (19)
- Observation All tropical legume species except Senna siamea contained condensed tannin.
- Observation Acacia boliviana contained less than 55 g total CT per kg dry matter.
- Observation Arachis pintoi contained less than 55 g total CT per kg dry matter.
- Observation Centrosema latidens contained less than 55 g total CT per kg dry matter.
- Observation Senna velutina contained less than 55 g total CT per kg dry matter.
- Observation Gliricidia sepium contained less than 55 g total CT per kg dry matter.
- Observation Other species grown in South America contained 100–240 g total CT per kg dry matter.
- Observation Leucaena species grown in Northern Australia contained intermediate total CT concentrations of 60–90 g per kg dry matter.
- Observation Calliandra calothyrsus grown in Northern Australia contained intermediate total CT concentrations of 60–90 g per kg dry matter.
- Observation Most species contained 70–95% of their total CT as extractable CT.
- Observation Flemingia macrophylla had 60% of its CT extractable, and this value differed between accessions.
- Observation Flemingia macrophylla had 40% of its CT bound.
- Observation Gliricidia sepium had almost all of its CT bound to protein.
- Method / resource Three accessions showed negligible extractable CT with butanol–HCl but 10–12 g per kg dry matter with vanillin–HCl.
- Method / resource Two accessions showed undetectable extractable CT but substantial protein-bound CT.
- Intervention effect Oven drying reduced the concentration of extractable CT in Leucaena species relative to freeze drying.
- Intervention effect Oven drying increased the concentrations of bound CT in Leucaena species relative to freeze drying.
- Recommendation The authors suggest that the low-CT species could comprise a reasonable proportion of ruminant diets.
- Recommendation The authors suggest that the other South American species should only be fed in small amounts as supplements to dilute their CT concentration.