Abstract
Abstract: The objective of this work was to characterize condensed tannins (CT) from six tropical forage legumes and to determine their biological activity. The monomers propelargonidin, prodelphinidin and procyanidin were analyzed, as well as extractable condensed tannin (ECT), protein-bound CT (PBCT) and fiber-bound CT (FBCT), molecular weight, degree of polymerization, polydispersity index, and biological activity by protein precipitate by phenols (PPP) of leaves of the legumes Cajanus cajan, Gliricidia sepium, Stylosanthes capitata x Stylosanthes macrocephala (stylo), Flemingia macrophylla, Cratylia argentea, and Mimosa caesalpiniifolia, and of the bark of this latter species. Differences were observed in the concentrations of ECT, PBCT, PPP, and total condensed tannin among species, but not in that of FBCT. The highest value of PBCT occurred in F. macrophylla. Total CT varied from nondetected concentration in C. argentea to the highest concentration in M. caesalpiniifolia leaves that contain the greatest levels of PPP. No differences were observed for polymerization degree in stylo, F. macrophylla, and M. caesalpiniifolia. Leaves of stylo, C. cajan, and G. sepium, all containing between 20 and 50 g kg-1 total CT, should be beneficial CT sources, if offered as sole feeds in ruminant diets. The ratio of prodelphinidin:procyanidin varies from 10:80 (stylo) to 65:35 (F. machrophylla), and propelargonidin is only determined in C. argentea.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 10
Claim · model-written summary
ECT, PBCT, PPP and total condensed tannin differed among species.
Not reportedTaxon
Verbatim
e0“Differences were observed in the concentrations of ECT, PBCT, PPP, and total condensed tannin among species, but not in that of FBCT.”
Claim · model-written summary
FBCT concentration did not differ among species.
Not reportedTaxon
Verbatim
e0“Differences were observed in the concentrations of ECT, PBCT, PPP, and total condensed tannin among species, but not in that of FBCT.”
Claim · model-written summary
F. macrophylla had the highest PBCT.
- Taxon
- F. macrophylla
Flemingia macrophyllae0 - Outcome
- PBCTe0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The highest value of PBCT occurred in F. macrophylla.”
Claim · model-written summary
C. argentea had undetected total CT.
- Taxon
- C. argentea
_purple_flowers_(28655379100).jpg?width=60)
Cratylia argenteae0 - Outcome
- Total CTe0
- Direction
- nondetectede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_purple_flowers_(28655379100).jpg?width=500)
Verbatim
e0“Total CT varied from nondetected concentration in C. argentea to the highest concentration in M. caesalpiniifolia leaves that contain the greatest levels of PPP.”
Claim · model-written summary
M. caesalpiniifolia leaves had the highest total CT and greatest PPP.
- Taxon
- M. caesalpiniifolia
.jpeg?width=60)
Mimosa caesalpiniifoliae0 - Organ / stage
- leavese0
- Outcome
- Total CTe0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpeg?width=500)
Verbatim
e0“Total CT varied from nondetected concentration in C. argentea to the highest concentration in M. caesalpiniifolia leaves that contain the greatest levels of PPP.”
Claim · model-written summary
Polymerization degree did not differ in stylo, F. macrophylla and M. caesalpiniifolia.
- Taxon
- stylo
.jpg?width=60)
Stylosanthes guianensise0 - Outcome
- polymerization degreee0
- Direction
- No differencese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
.jpg?width=500)
Verbatim
e0“No differences were observed for polymerization degree in stylo, F. macrophylla, and M. caesalpiniifolia.”
Claim · model-written summary
Stylo, C. cajan and G. sepium leaves were recommended as CT sources at 20 to 50 g kg-1 total CT.
- Taxon
- styloStylosanthes guianensise0
- Outcome
- beneficial CT sourcese0
- Value
- between 20 and 50 g kg-1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Leaves of stylo, C. cajan, and G. sepium, all containing between 20 and 50 g kg-1 total CT, should be beneficial CT sources, if offered as sole feeds in ruminant diets.”
Claim · model-written summary
Prodelphinidin to procyanidin ratio was 10:80 in stylo.
- Taxon
- styloStylosanthes guianensise0
- Outcome
- ratio of prodelphinidin:procyanidine0
- Value
- 10:80e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The ratio of prodelphinidin:procyanidin varies from 10:80 (stylo) to 65:35 (F. machrophylla)”
Claim · model-written summary
Prodelphinidin to procyanidin ratio was 65:35 in F. machrophylla.
Verbatim
e0“The ratio of prodelphinidin:procyanidin varies from 10:80 (stylo) to 65:35 (F. machrophylla)”
Claim · model-written summary
Propelargonidin was determined only in C. argentea.
- Taxon
- C. argenteaCratylia argenteae0
- Outcome
- propelargonidine0
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“propelargonidin is only determined in C. argentea.”