RT Journal Article
T1 Combination of dietary glycaemic index and fasting time prior to slaughter as strategy to modify quality of pork
A1 Rey Muñoz, Ana Isabel
A1 Menoyo Luque, David
A1 Segura Plaza, José Francisco
A1 López Bote, Clemente José
A1 Calvo Adiego, Luis
AB This study evaluates the effect of the dietary glycaemic index (low: L-GI vs. high: H-GI), pre-slaughter fasting times (17 h: f17 vs. 19 h: f19 vs. 22 h: f22), and their interaction, on certain meat quality characteristics. Greater duration of fasting resulted in lesser drip loss of muscle, greater LIPE expression (lipolysis) and 10% greater TBARS, with PUFA being the main source of free-fatty acid production. L-GI diets produced a greater drip loss, lipolytic activity and lesser C18:1n-9 relative mobilization, suggesting this group had greater glycolytic potential than H-GI. An interaction was found in meat characteristics related to fat metabolism. The IRS2 gene expression was greater in pigs fed L-GI diets, but only in a low fasting period. LIPE gene expression was greater for L-GI-f17 group than for L-GI-f22. Lesser n-6 PUFA but greater MUFA were found in the free fatty acid fraction of L-GI- f17 group thus resulting in a faster lipolysis initiation in this group.
PB Elsevier
SN 0309-1740
YR 2020
FD 2020
LK https://hdl.handle.net/20.500.14352/96246
UL https://hdl.handle.net/20.500.14352/96246
LA eng
NO A.I. Rey, D. Menoyo, J. Segura, C.J. López-Bote, L. Calvo, Combination of dietary glycaemic index and fasting time prior to slaughter as strategy to modify quality of pork, Meat Science, Volume 161, 2020, 108013,
NO Ministerio de Economía, Comercio y Empresa (España)
DS Docta Complutense
RD 2 oct 2024