Claim · model-written summary
Condensed tannins increased transulphuration of methionine to cystine (4.37 vs 1.24 mumol/min).
- Taxon
- Lotus corniculatus
_Lotus_corniculatus_-_Plant_habit.jpg?width=60)
Lotus corniculatuse2 - Treatment
- condensed tannin (CT)e2
- Interactor
- sheep
Ovis ariese2herbivore - Outcome
- transulphuration of methionine to cystinee1
- Direction
- increasede1
- Value
- 4.37 v. 1.24 mumol/mine1
- Comparator
- Polyethylene glycol (PEG)e3
Not reportedMaterialGeneCompoundOrgan / stageSecond interactorSecond interactor roleSettingQualifier
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_Lotus_corniculatus_-_Plant_habit.jpg?width=500)
Verbatim
e1“CT increased transulphuration of methionine to cystine (4.37 v. 1.24 mumol/min; P < 0.05)”
e2“Fresh Lotus corniculatus containing 27 g extractable condensed tannin (CT)/kg dry matter (DM) and 8 g bound CT/kg DM was fed at hourly intervals to sheep held in metabolism cages”
e3“Polyethylene glycol (PEG) was continuously infused into the rumen of half the sheep to remove the effects of CT”
Title
Yuxi Wang; G. C. Waghorn; T. N. Barry; et al. British Journal Of Nutrition 1994. doi:10.1079/bjn19940096
Other claims from this paper (16)
- Intervention effect Condensed tannins in Lotus corniculatus had no effect on apparent digestion of cellulose and minerals.
- Intervention effect Condensed tannins slightly depressed digestion of DM, organic matter and hemicellulose.
- Intervention effect Condensed tannins markedly reduced the apparent digestion of nitrogen.
- Intervention effect PEG infusion markedly increased rumen NH3 and the molar proportions of iso-butyric, iso-valeric and n-valeric acids.
- Intervention effect PEG infusion temporarily increased rumen protozoa numbers.
- Intervention effect PEG infusion did not affect total volatile fatty acid concentration or the proportions of acetic, propionic and n-butyric acids.
- Intervention effect Condensed tannins greatly increased the irreversible loss rate of plasma cystine (13.1 vs 7.0 mumol/min).
- Intervention effect Condensed tannins reduced the irreversible loss rate of plasma inorganic sulphate (36.8 vs 48.1 mumol/min).
- Intervention effect Condensed tannins had no effect on methionine irreversible loss rate.
- Intervention effect Condensed tannins increased cystine entering the plasma (9.34 vs 5.75 mumol/min).
- Intervention effect Condensed tannins increased cystine flux to body synthetic reactions (11.89 vs 5.41 mumol/min).
- Intervention effect Condensed tannins had no effect on the proportion of methionine flux transferred to sulphate (0.05 vs 0.06).
- Intervention effect Condensed tannins reduced the proportion of methionine flux transferred to body synthetic reactions (0.68 vs 0.86).
- Intervention effect Condensed tannins markedly reduced the proportion of cystine flux transferred to sulphate (0.09 vs 0.27).
- Association Condensed tannins reduced rumen protein degradation (author conclusion).
- Association Condensed tannins markedly increased utilization of plasma cystine for body synthetic reactions (author conclusion).