A distinction of cow and buffalo ghee using principal component analysis of triglyceride composition
Parul Pathania, V. Sharma, Priyanka Singh Rao, Sumit Arora, Narender Raju Panjagari
Abstract
Triglyceride (TG) profiling was explored to distinguish cow ghee from buffalo ghee to check their admixing. Cow and buffalo butter was clarified at 110, 130 and 150 °C to obtain ghee. Temperature of clarification did not show any significant effect on TG profile. Cow ghee showed maxima at TG C38 and C52. Buffalo ghee exhibited maxima at C38 and C50 unlike cow ghee. Cow ghee samples showed a higher TG content of C42 to C54, whereas buffalo ghee samples were associated with a greater content of C26 to C38. Principal component analysis (PCA) and hierarchical clustering showed two ghee types as distinct separate clusters.
Topics & Concepts
Principal component analysisTriglycerideFood scienceComposition (language)Cow milkChemistryAnimal scienceMathematicsBiologyBiochemistryCholesterolStatisticsPhilosophyLinguisticsMeat and Animal Product QualityIdentification and Quantification in FoodAnimal Nutrition and Physiology