Influence of lactation stage and some flock management practices on sensory characteristics of goat milk from Brazilian Saanen breed.
This study evaluated the influence of lactation stage (early, middle, late) and management practices (milking hygiene and buck presence) on the sensory attributes of Saanen goat milk. Goats were randomly divided in four groups in respect of different milking sanitary procedures and the presence/absence of the buck in the barn. Milk samples were analyzed for sensory attributes including quantitative descriptive analysis (QDA) and acceptance. The milking hygiene practice caused no significant influence on microbiological parameters. Results of QDA revealed that the buck presence increased the characteristic odor of milk at the middle and late lactation stages. The off-odor and off-flavor descriptors showed a distinct response since a higher intensity of these sensory characteristics was noted in the samples obtained from goats maintained without the buck. Odor and flavor contributed most in characterizing the different samples regardless of the management practice and lactation stage. The acceptance of odor showed to be influenced only by the lactation stage, while the acceptance of flavor was only through the presence of the buck. Odor acceptance correlated negatively to off-odor and off-flavor, suggesting that these two sensory attributes impaired the preference for the aroma of the milk samples.
Department of Nutrition, Federal University of Paraíba, João Pessoa.
Rita
R
de Cássia Ramos do Egypto Queiroga
Department of Agriculture, Federal University of Paraíba, Bananeiras.
Roberto Germano
RG
Costa
Department of Chemistry Technology and Foods, Federal University of Paraíba, João Pessoa.
Marta Suely
MS
Madruga
Department of Animal Science, Federal University of Paraíba, Areia.
Ariosvaldo Nunes
AN
de Medeiros
Embrapa Agroindústria Tropical (CNPAT/Embrapa), Fortaleza, Brazil.
Deborah
D
Dos Santos Garruti
Department of Chemistry Technology and Foods, Federal University of Paraíba, João Pessoa.
Marciane
M
Magnani
Department of Nutrition, Federal University of Paraíba, João Pessoa.
Evandro Leite
EL
de Souza
D000822:Animal Husbandry; D000818:Animals; D001938:Brazil; D003612:Dairying; D005260:Female; D063427:Food Quality; D006041:Goats; D006920:Hygiene; D007774:Lactation / Q000502:physiology* / Q000523:psychology*; D008297:Male; D008892:Milk / Q000737:chemistry* / Q000382:microbiology; D009812:Odorants / Q000032:analysis*
milk production; sensory quality; small ruminants