Circannual changes in major chemical composition of bulk dromedary camel milk as determined by FT-MIR spectroscopy, and factors of variation

Péter Nagy, Judit Juhász, J. Reiczigel, Gábor Császár, Róbert Kocsis, László Varga

Research output: Contribution to journalArticle

Abstract

We monitored the major chemical composition of bulk dromedary camel milk by FT-MIR spectroscopy over a 5-year period. The results highly correlated with those determined with reference methods (r > 0.985, p < 0.001). Production parameters showed significant (p < 0.001) seasonal and yearly changes. The overall mean fat, protein, lactose, solids-not-fat, and total solids concentrations of bulk dromedary camel milk were 2.87%, 2.94%, 4.15%, 8.00%, and 10.69%, respectively. Month of the year, year of the study, and level of production had a strong influence on bulk milk chemical composition and yield of milk components; however, the relative effect of season on composition was greater (proportion of variance app. 50%) compared to that of other factors of variation. The highest and lowest values were measured during winter and summer, respectively. Circannual variation in major milk components was associated with environmental conditions (photoperiod, temperature), whereas it was independent of nutritional factors.

Original languageEnglish
Pages (from-to)248-253
Number of pages6
JournalFood Chemistry
Volume278
DOIs
Publication statusPublished - Apr 25 2019

Fingerprint

camel milk
Camelus
Camelus dromedarius
milk composition
spectroscopy
Spectrum Analysis
Milk
chemical composition
Spectroscopy
bulk milk
total solids
lipids
Chemical analysis
lactose
photoperiod
environmental factors
Fats
winter
summer
Photoperiod

Keywords

  • Camel
  • Chemical composition
  • Dromedary
  • Raw milk
  • Seasonal variation

ASJC Scopus subject areas

  • Analytical Chemistry
  • Food Science

Cite this

Circannual changes in major chemical composition of bulk dromedary camel milk as determined by FT-MIR spectroscopy, and factors of variation. / Nagy, Péter; Juhász, Judit; Reiczigel, J.; Császár, Gábor; Kocsis, Róbert; Varga, László.

In: Food Chemistry, Vol. 278, 25.04.2019, p. 248-253.

Research output: Contribution to journalArticle

Nagy, Péter ; Juhász, Judit ; Reiczigel, J. ; Császár, Gábor ; Kocsis, Róbert ; Varga, László. / Circannual changes in major chemical composition of bulk dromedary camel milk as determined by FT-MIR spectroscopy, and factors of variation. In: Food Chemistry. 2019 ; Vol. 278. pp. 248-253.
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