The Effect of Moringa oleifera Leaf Extract as Antioxidant on Stabilization of Butter Oil with Modified Fatty Acid Profile

Authors
M. Nadeem 1
M. Abdullah 1
A. Khalique 2
I. Hussain 1
A. Mahmud 3
S. Inayat 1
1 Department of Dairy Technology, University of Veterinary and Animal Sciences, Lahore, Pakistan.
2 Department of Food and Nutrition, University of Veterinary and Animal Sciences, Lahore, Pakistan
3 Department of Poultry Production, University of Veterinary and Animal Sciences, Lahore, Pakistan.
Abstract
Effect of methanolic leaf extract of Moringa oleifera for the stabilization of butter oil with modified fatty acid profile at ambient temperature was investigated. Twelve Sahiwal cows of first and early lactation were randomly stratified into two groups in a completely randomized design and fatty acid profile of milk fat was modified by feeding 300 grams calcium salts of fatty acids (per cow per day) to one group (G-1) and the second group was not fed on calcium salts of fatty acids (G-2). Concentration of long chain fatty acids (C18:1 to C18:3) in milk of G-1 was increased from 30.33±0.174b to 35.36±0.14a% as compared to G-2. Milk fat of G-1 was turned into butter oil. Moringa oleifera leaf extract (MOLE) was incorporated into butter oil (from milk of G-1) at three different concentrations: T1= 400, T2= 600, and T3= 800 ppm. All these treatments were compared with a control, without any addition of MOLE. Peroxide value of T2 in Schaal oven test (after 90 days of storage) was 5.35±0.29b as compared to control 16.64±0.42a (meq /kg). p-anisidine value and induction time (after 90 days of storage at ambient temperature) of T2 and control were 12.45±0.63b, 28.67±1.36a (meq kg-1) and 10.84±0.28a and 3.95±0.14b hours, respectively. It was concluded that Moringa oleifera leaf extract at 600 ppm concentration may be used for the enhancement of oxidative stability of butter oil with modified fatty acid profile at ambient temperature.

Keywords

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Journal of Agricultural Science and Technology
Volume 15, Issue 5
September and October 2013
Pages 919-928