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 | Acceso al texto completo restringido a Biblioteca INIA Tacuarembó. Por información adicional contacte bibliotb@tb.inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA Tacuarembó. |
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Fecha : |
01/07/2015 |
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Actualizado : |
27/04/2020 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Autor : |
RESCONI, V.C.; CAMPO, M.M.; MONTOSSI, F.; FERREIRA, V.; SAÑUDO, C.; ESCUDERO, A. |
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Afiliación : |
VIRGINIA CELIA RESCONI, University of Zaragoza, Spain; MARÍA DEL MAR CAMPO, Facultad de Veterinaria, Universidad de Zaragoza, España; FABIO MARCELO MONTOSSI PORCHILE, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; VICENTE FERREIRA; CARLOS SAÑUDO, Facultad de Veterinaria, Univ. de Zaragoza; ANA ESCUDERO. |
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Título : |
Gas chromatographic-olfactometric aroma profile and quantitative analysis of volatile carbonyls of grilled beef from different finishing feed systems. |
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Fecha de publicación : |
2012 |
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Fuente / Imprenta : |
Journal of Food Science, 2012, v. 77, no. 6, p. 5240-5246. https://doi.org/10.1111/j.1750-3841.2012.02720.x |
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DOI : |
10.1111/j.1750-3841.2012.02720.x |
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Idioma : |
Inglés |
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Notas : |
History article: Submitted 11/24/2011; Accepted 3/14/2012. Acknowledgments: The authors thank P. Lara, F. San Juan, L. Cullere, and J. Zapata, and the technical support and expertise of the personnel involved in fattening, slaughtering, and conditioning animals and meat samples. |
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Contenido : |
In this study, the important odor impact volatiles generated in the meat of grilled beef loin muscle were characterized. Animals were finished in 4 different diet systems: T1, pasture (a mixture of Medicago sativa, Trifolium repens, and Festuca arundinacea); T2, pasture supplemented with cracked corn grain (offered at 0.6% live weight, LW); T3, pasture supplemented with cracked corn grain (offered at 1.2% LW); and T4, concentrate (pellets with 85% corn and 12.8% sunflower, on a dry-matter basis) plus alfalfa hay (both ad libitum). Aroma compounds were assessed by dynamic headspace-solid phase extraction (DHS-SPE) and gas chromatographic-olfactometric (GC-O) analysis. Most odorants were carbonyl compounds, some of them reaching high GC-O scores, especially 1-octen-3-one, (E)-2-octenal, methional, and hexanal. A specific quantitative analysis of ketones and aldehydes was conducted through their derivatization with o-(2,3,4,5,6-pentafluorobenzyl) hydroxylamine hydrochloride directly on the headspace trap and analyzed by GC-MS, with the purpose of studying the effect of finishing diet systems. From the 23 carbonyl compounds quantified, 2 were especially affected by the diet system; methional was higher in the treatment based on concentrates, whereas (E,E)-2,4-heptadienal was higher in the treatment based only in pastures. The results are discussed considering previous published productive and quality traits. |
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Palabras claves : |
ALDEHYDES; AROMA COMPOUNDS; FINISHING FEEDS; GAS CHROMATOGRAPHY-OLFACTOMETRY; GC-O; KETONES. |
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Thesagro : |
AROMA; CARNE; CROMATOGRAFIA. |
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Asunto categoría : |
A50 Investigación agraria |
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Marc : |
LEADER 02659naa a2200313 a 4500
001 1052973
005 2020-04-27
008 2012 bl uuuu u00u1 u #d
024 7 $a10.1111/j.1750-3841.2012.02720.x$2DOI
100 1 $aRESCONI, V.C.
245 $aGas chromatographic-olfactometric aroma profile and quantitative analysis of volatile carbonyls of grilled beef from different finishing feed systems.
260 $c2012
500 $aHistory article: Submitted 11/24/2011; Accepted 3/14/2012. Acknowledgments: The authors thank P. Lara, F. San Juan, L. Cullere, and J. Zapata, and the technical support and expertise of the personnel involved in fattening, slaughtering, and conditioning animals and meat samples.
520 $aIn this study, the important odor impact volatiles generated in the meat of grilled beef loin muscle were characterized. Animals were finished in 4 different diet systems: T1, pasture (a mixture of Medicago sativa, Trifolium repens, and Festuca arundinacea); T2, pasture supplemented with cracked corn grain (offered at 0.6% live weight, LW); T3, pasture supplemented with cracked corn grain (offered at 1.2% LW); and T4, concentrate (pellets with 85% corn and 12.8% sunflower, on a dry-matter basis) plus alfalfa hay (both ad libitum). Aroma compounds were assessed by dynamic headspace-solid phase extraction (DHS-SPE) and gas chromatographic-olfactometric (GC-O) analysis. Most odorants were carbonyl compounds, some of them reaching high GC-O scores, especially 1-octen-3-one, (E)-2-octenal, methional, and hexanal. A specific quantitative analysis of ketones and aldehydes was conducted through their derivatization with o-(2,3,4,5,6-pentafluorobenzyl) hydroxylamine hydrochloride directly on the headspace trap and analyzed by GC-MS, with the purpose of studying the effect of finishing diet systems. From the 23 carbonyl compounds quantified, 2 were especially affected by the diet system; methional was higher in the treatment based on concentrates, whereas (E,E)-2,4-heptadienal was higher in the treatment based only in pastures. The results are discussed considering previous published productive and quality traits.
650 $aAROMA
650 $aCARNE
650 $aCROMATOGRAFIA
653 $aALDEHYDES
653 $aAROMA COMPOUNDS
653 $aFINISHING FEEDS
653 $aGAS CHROMATOGRAPHY-OLFACTOMETRY
653 $aGC-O
653 $aKETONES
700 1 $aCAMPO, M.M.
700 1 $aMONTOSSI, F.
700 1 $aFERREIRA, V.
700 1 $aSAÑUDO, C.
700 1 $aESCUDERO, A.
773 $tJournal of Food Science, 2012$gv. 77, no. 6, p. 5240-5246. https://doi.org/10.1111/j.1750-3841.2012.02720.x
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INIA Tacuarembó (TBO) |
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| Acceso al texto completo restringido a Biblioteca INIA La Estanzuela. Por información adicional contacte bib_le@inia.org.uy. |
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Registro completo
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Biblioteca (s) : |
INIA La Estanzuela. |
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Fecha actual : |
03/09/2019 |
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Actualizado : |
03/09/2019 |
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Tipo de producción científica : |
Artículos en Revistas Indexadas Internacionales |
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Circulación / Nivel : |
Internacional - -- |
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Autor : |
SCHENEITER, J.O.; BERTÍN, O.D.; LATTANZI, F. |
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Afiliación : |
JORGE O. SCHENEITER, Estación Experimental Agropecuaria Pergamino, INTA, Ruta 32 km 4,5, 6700, Pergamino, Buenos Aires, Argentina.; OSCAR D. BERTÍN, Estación Experimental Agropecuaria Pergamino, INTA, Ruta 32 km 4,5, 6700, Pergamino, Buenos Aires, Argentina.; FERNANDO A. LATTANZI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.//Lehrstuhl für Grünlandlehre, Technische Univ., München, Germany. |
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Título : |
Under sressful conditions, high cattle density maintains white clover abundance. |
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Fecha de publicación : |
2019 |
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Fuente / Imprenta : |
Agronomy Journal, 2019, v. 111, no. 3, p. 1198-1207, 2019. |
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DOI : |
10.2134/agronj2018.03.0186 |
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Idioma : |
Inglés |
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Notas : |
Article history: Received: Mar 19, 2018//Accepted: Nov 25, 2018//Published: March 8, 2019. |
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Contenido : |
Abstract: The aim of the present study was to evaluate the abundance and dynamics of white clover (WC) (Trifolium repens L.) under cattle grazing, in a stressful environment. To this end, we performed a 5-yr experiment in Buenos Aires province, Argentina, where treatments were low and high forage offers (LFO and HFO) of a tall fescue (TF) [Lolium arundinaceum Schreb. (Darbysh.)]?WC mixture and two sites regarding the initial existence of WC in the pasture (with and without white clover, WC+ and WC?). Climatic conditions determined periods of deficiency or abundance of plant available water in the topsoil, which interacted with the grazing management, leading to either the absence or richness of WC in the pasture. Before a drought, the basal cover of WC was 31.0 and 11.2% with LFO and HFO treatments, respectively (P < 0.001); whereas, during recovery after drought, the corresponding values were 44.0 and 2.7% (P < 0.001), respectively. Re-establishment of WC at the pasture level was poorly related to the pre-drought spatial distribution. At the beginning of the experiment, the TF tiller density was greater in WC? sites; whereas, at the end of the experiment, the opposite was observed. The N derived from biological fixation was 85.5% and differences among treatments were of small magnitude. We concluded that, at the pasture level, the abundance of WC in an environment with hot and often dry summers is favored when the competition by TF is controlled and the availability of water in the soil is not limiting. MenosAbstract: The aim of the present study was to evaluate the abundance and dynamics of white clover (WC) (Trifolium repens L.) under cattle grazing, in a stressful environment. To this end, we performed a 5-yr experiment in Buenos Aires province, Argentina, where treatments were low and high forage offers (LFO and HFO) of a tall fescue (TF) [Lolium arundinaceum Schreb. (Darbysh.)]?WC mixture and two sites regarding the initial existence of WC in the pasture (with and without white clover, WC+ and WC?). Climatic conditions determined periods of deficiency or abundance of plant available water in the topsoil, which interacted with the grazing management, leading to either the absence or richness of WC in the pasture. Before a drought, the basal cover of WC was 31.0 and 11.2% with LFO and HFO treatments, respectively (P < 0.001); whereas, during recovery after drought, the corresponding values were 44.0 and 2.7% (P < 0.001), respectively. Re-establishment of WC at the pasture level was poorly related to the pre-drought spatial distribution. At the beginning of the experiment, the TF tiller density was greater in WC? sites; whereas, at the end of the experiment, the opposite was observed. The N derived from biological fixation was 85.5% and differences among treatments were of small magnitude. We concluded that, at the pasture level, the abundance of WC in an environment with hot and often dry summers is favored when the competition by TF is controlled and the availability of wate... Presentar Todo |
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Palabras claves : |
ABUNDANCIA TREBOL BLANCO; DINÁMICA DE TRÉBOL BLANCO; HIGH FORAGE OFER (HFO); LOLIUM ARUNDINACEUM SCHREB; TALL FESCUE; WHITE CLOVER. |
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Thesagro : |
FESTUCA; LEGUMINOSAS; MANEJO DE PASTOREO; PASTURAS; TREBOL BLANCO. |
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Asunto categoría : |
F01 Cultivo |
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Marc : |
LEADER 02497naa a2200301 a 4500
001 1060133
005 2019-09-03
008 2019 bl uuuu u00u1 u #d
024 7 $a10.2134/agronj2018.03.0186$2DOI
100 1 $aSCHENEITER, J.O.
245 $aUnder sressful conditions, high cattle density maintains white clover abundance.$h[electronic resource]
260 $c2019
500 $aArticle history: Received: Mar 19, 2018//Accepted: Nov 25, 2018//Published: March 8, 2019.
520 $aAbstract: The aim of the present study was to evaluate the abundance and dynamics of white clover (WC) (Trifolium repens L.) under cattle grazing, in a stressful environment. To this end, we performed a 5-yr experiment in Buenos Aires province, Argentina, where treatments were low and high forage offers (LFO and HFO) of a tall fescue (TF) [Lolium arundinaceum Schreb. (Darbysh.)]?WC mixture and two sites regarding the initial existence of WC in the pasture (with and without white clover, WC+ and WC?). Climatic conditions determined periods of deficiency or abundance of plant available water in the topsoil, which interacted with the grazing management, leading to either the absence or richness of WC in the pasture. Before a drought, the basal cover of WC was 31.0 and 11.2% with LFO and HFO treatments, respectively (P < 0.001); whereas, during recovery after drought, the corresponding values were 44.0 and 2.7% (P < 0.001), respectively. Re-establishment of WC at the pasture level was poorly related to the pre-drought spatial distribution. At the beginning of the experiment, the TF tiller density was greater in WC? sites; whereas, at the end of the experiment, the opposite was observed. The N derived from biological fixation was 85.5% and differences among treatments were of small magnitude. We concluded that, at the pasture level, the abundance of WC in an environment with hot and often dry summers is favored when the competition by TF is controlled and the availability of water in the soil is not limiting.
650 $aFESTUCA
650 $aLEGUMINOSAS
650 $aMANEJO DE PASTOREO
650 $aPASTURAS
650 $aTREBOL BLANCO
653 $aABUNDANCIA TREBOL BLANCO
653 $aDINÁMICA DE TRÉBOL BLANCO
653 $aHIGH FORAGE OFER (HFO)
653 $aLOLIUM ARUNDINACEUM SCHREB
653 $aTALL FESCUE
653 $aWHITE CLOVER
700 1 $aBERTÍN, O.D.
700 1 $aLATTANZI, F.
773 $tAgronomy Journal, 2019$gv. 111, no. 3, p. 1198-1207, 2019.
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