Relationship between Phenolic Acids Formed During Rumen Degradation of Maize Samples and in vitroDigestibility

Marvin, H.J.P.; Krechting, C. F.; Loo, E.N. van; Snijders, C. H. A.; Lommen, Arjen; Dolstra, O.

doi:10.1002/(sici)1097-0010(199605)71:1<111::aid-jsfa555>3.0.co;2-4

Cited by 12 publications

(6 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…However, in this study, growth tended to be lower in ewe lambs supplemented with FA from d 18 until the end of the experiment, which was reflected on the overall feeding period. In agreement with these authors, Marvin et al (1996) found a negative correlation between FA released from maize cell walls in rumen and organic matter and cell wall digestibility. Studies done in vitro with ruminal fluid reported a inhibitory effect of FA on cellulose degradation and microbial growth, which was attributed to the capacity of this phenol to damage cellular membranes and to inactivate cell wall hydrolyzing enzymes (Chesson et al, 1982;Borneman et al, 1986).…”

Section: Discussionsupporting

confidence: 87%

Effects of free ferulic acid on productive performance, blood metabolites, and carcass characteristics of feedlot finishing ewe lambs

Macías‐Cruz

Perard

Vicente

et al. 2014

Journal of Animal Science

View full text Add to dashboard Cite

The aim of this study was to evaluate effects of free ferulic acid (FA) supplementation on productive performance, some blood metabolite concentrations, and carcass characteristics of ewe lambs finished in a feedlot. Dorper×Pelibuey ewe lambs (n=20; BW=28.5±0.5 kg; age=5 mo) were individually housed in pens and assigned under a randomized complete block design to the following dietary treatments (n=10): daily feeding without (control) or with 300 mg of FA/animal. The feedlot feeding period lasted 34 d and then all ewe lambs were slaughtered. Free FA did not affect (P≥0.16) BW gain, ADG, DMI, and G:F during the first 17 d, but BW gain (P=0.10) and ADG (P=0.10) tended to decrease for FA from d 17 to 34 and from d 1 to 34 without affecting (P≥0.16) DMI and G:F in ewe lambs. Serum concentrations of glucose, cholesterol, triglyceride, total protein, and urea were not affected (P>0.05) by FA at d 1, 17, and 34 of the feeding period. Carcass characteristics were not affected (P>0.05) by FA. Stomach percentage tended (P=0.08) to decrease and leg yields increased (P=0.02) for FA. Other noncarcass components and wholesale cut yields were not affected (P>0.10) by FA. In conclusion, FA supplementation did not improve productive performance, metabolic status, and carcass characteristics of ewe lambs receiving a feedlot finishing diet.

show abstract

Section: Discussionsupporting

confidence: 87%

Effects of free ferulic acid on productive performance, blood metabolites, and carcass characteristics of feedlot finishing ewe lambs

Macías‐Cruz

Perard

Vicente

et al. 2014

Journal of Animal Science

View full text Add to dashboard Cite

show abstract

“…The predominant aromatic acid found in rumen liquor is 3-phenylpropionic acid (50-80% of total aromatic acids) with lesser amounts of phenylacetic (13-50%), cinnamic (0-7%) and benzoic (D1%) acids. 16,17 Infusing phenolic acid into the sheep rumen established hydroxycinnamates released from cell walls or from soluble conjugates as the major source of these acids. 18 The alternative origin via the deamination of aromatic amino acids was shown subsequently to account for only a minor proportion of such compounds.…”

Section: Ruminantsmentioning

confidence: 99%

Hydroxycinnamic acids in the digestive tract of livestock and humans

Chesson¹,

Provan²,

Russell³

et al. 1999

J. Sci. Food Agric.

View full text Add to dashboard Cite

Hydroxycinnamic acids are consumed as water-soluble conjugates and in larger amounts bound to plant cell walls. Bound acids are primarily released by microbial action in the modiüed forestomach of ruminants and the hindgut of non-ruminant species, including humans. In the rumen, rapid hydrogenation of p-coumaric, ferulic and caþ eic acids, followed by dehydroxylation at C4 and more slowly at C3 yields 3-phenylpropionic acid. Phenylpropionate is absorbed and undergoes boxidation in the liver to benzoic acid which is then excreted predominately (75-95% ) as its glycine conjugate (hippuric acid), but also as the free acid or glucuronide. In non-ruminants, hydroxycinnamates may be absorbed unchanged in the upper digestive tract via a Na'-dependent saturable transport system or escape to the hindgut where they are subject to microbial transformations with further absorption of metabolites. Metabolites of p-coumaric acid found in rat urine are the unchanged compound and its glycine conjugate, the reduced derivative and the b-oxidation product, 4-hydroxybenzoic acid. Caþ eic acid and its methyl ethers (ferulic and iso-ferulic acids) are interconvertable and share metabolites. As in the rumen, reduction of the side-chain, demethylation of C 3 ferulate and dehydroxylation at C4 are products of microbial action. Dehydroxylation at C3 is more rarely encountered. The resulting 3-hydroxyphenylpropionic acid is commonly found in the urine of all species and is the major metabolite in rats where relatively little chain-shortening occurs. A larger range of metabolites including compounds have been detected in human urine. Metabolism of C 6 -C 1 hydroxycinnamate dimers found as cross-links between polysaccharide chains has been little studied although evident diþ erences in the ability to metabolise such compounds exist between the human and rumen microýora.

show abstract

“…For instance, Martin detected low amounts of Ph-3:0 in urine of sheep [37]. Likewise, free Ph-3:0 was detected during the in vitro digestion of maize by rumen juice [38]. However, the presence of Ph-3:0 has never been reported in milk or dairy products.…”

Section: Resultsmentioning

confidence: 99%

Identification of Aromatic Fatty Acids in Butter Fat

Schröder

Abdurahman

Ruoff

et al. 2014

J Americ Oil Chem Soc

View full text Add to dashboard Cite

Bovine milk fat contains a large variety of structurally different fatty acids. In this study, we describe the presence of aromatic fatty acids in a butter fat sample. Fatty acids were released from butter fat and converted into the corresponding methyl esters (FAME). Urea complexation was used to separate the main saturated fatty acids. GC/MS screening of the FAME in the filtrate of the urea complexation indicated the presence of aromatic fatty acids. By (1) conversion of two representatives into picolinyl esters which were analyzed by GC/MS, (2) linear log t R over carbon number plots (R 2 = 0.95) and by the use of two reference standards we were able to show that the phenyl unit was located on the terminal carbon of the straight acyl chain of the FAME. In a fraction gathered by countercurrent chromatography we were able to identify 3-phenylpropionic acid (Ph-3:0), 4-phenylbutyric acid (Ph-4:0), 5-phenylpentanoic acid (Ph-5:0), 6-phenylhexanoic acid (Ph-6:0), 7-phenylheptanoic acid (Ph-7:0), 8-phenyloctanoic acid (Ph-8:0), 9-phenylnonanoic acid (Ph-9:0), 10-phenyldecanoic acid (Ph-10:0), 11-phenylundecanoic acid (Ph-11:0), 12-phenyldodecanoic acid (Ph-12:0), 13-phenyltridecanoic acid (Ph-13:0), along with one unsaturated phenyldecenoic acid (Ph-10:1) isomer. Preliminary results indicate that the aromatic fatty acids may have been formed exogenously in the rumen of the cows. The total amount of the aromatic fatty acids was estimated at 0.15 mg/g butter fat, which corresponds with an average daily intake of *5 mg per day in Germany and *4.4 mg per day in Europe.

show abstract

Relationship between Phenolic Acids Formed During Rumen Degradation of Maize Samples and in vitroDigestibility

Cited by 12 publications

References 18 publications

Effects of free ferulic acid on productive performance, blood metabolites, and carcass characteristics of feedlot finishing ewe lambs

Effects of free ferulic acid on productive performance, blood metabolites, and carcass characteristics of feedlot finishing ewe lambs

Hydroxycinnamic acids in the digestive tract of livestock and humans

Identification of Aromatic Fatty Acids in Butter Fat

Contact Info

Product

Resources

About