Effect of Milk Fat Concentration on Fat Crystallization of Palm Oil‐Based Shortenings

2020 ◽  
Author(s):  
Viet Nguyen ◽  
Tom Rimaux ◽  
Vinh Truong ◽  
Sabine Danthine ◽  
Koen Dewettinck ◽  
...  
Keyword(s):  
Palm Oil ◽  
Milk Fat ◽  
Fat Crystallization

Fat crystallization of blends of palm oil and anhydrous milk fat: A comparison between static and dynamic-crystallization

2020 ◽  
Vol 137 ◽  
pp. 109412 ◽  
Author(s):  
Viet Nguyen ◽  
Tom Rimaux ◽  
Vinh Truong ◽  
Koen Dewettinck ◽  
Filip Van Bockstaele
Keyword(s):  
Palm Oil ◽  
Milk Fat ◽  
Fat Crystallization ◽  
Anhydrous Milk Fat ◽  
Dynamic Crystallization

Milk production, peripartal liver triglyceride concentration and plasma metabolites of dairy cows fed diets supplemented with calcium soaps or hydrogenated triglycerides of palm oil

2009 ◽  
Vol 77 (2) ◽  
pp. 151-158 ◽  
Author(s):  
Roland G Karcagi ◽  
Tibor Gaál ◽  
Piroska Ribiczey ◽  
Gyula Huszenicza ◽  
Ferenc Husvéth
Keyword(s):  
Dairy Cows ◽  
Milk Production ◽  
Milk Yield ◽  
Palm Oil ◽  
Milk Fat ◽  
Post Partum ◽  
Negative Energy ◽  
Plasma Metabolites ◽  
Control Group ◽  
Liver Triglyceride

The aim of the study was to test the effect of rumen-inert fat supplements of different chemical forms or containing different unsaturated/saturated (U/S) fatty acid contents on milk production, milk composition and liver and blood metabolic variables of high-yielding dairy cows in the peripartal period. Thirty Holstein-Friesian dairy cows were divided into three equal groups and fed a corn silage-based diet, without fat supplementation (control) or supplemented with 11·75 MJ NEl per day of calcium soaps of palm oil fatty acids (CAS; U/S=61/39) or with 11·75 MJ NEl per day of hydrogenated palm oil triglyceride (HTG; U/S=6/94). Each diet was fed from 25±2 d prior to the expected calving to 100±5 d post partum. Compared with the control, both CAS and HTG supplementation resulted in an increase of the average milk yield. Milk fat content and fat-corrected milk yield were higher in the HTG group but lower in the CAS group than in the control group. In all groups liver triglyceride concentrations (TGL) increased from 15 d prepartum to 5 d post partum, and then decreased thereafter. At 5 d TGL was lower in the HTG group than control or CAS cows. No significant differences were detected in TGL among dietary treatments at 15 d prepartum and 25 d post partum. Higher plasma glucose and insulin and lower non-esterified fattay acids and β-hydroxybutyrate concentrations and aspartate aminotransferase activity were measured in the HTG group than in the control or CAS groups at 5 d or 25 d post partum. Our results show that HTG may provide a better energy supply for high-yielding dairy cows in negative energy balance than CAS around calving.

scholarly journals Compositional Effects on Milk Fat Crystallization

2001 ◽  
Vol 84 (11) ◽  
pp. 2392-2401 ◽  
Author(s):  
Y. Shi ◽  
C.M. Smith ◽  
R.W. Hartel
Keyword(s):  
Milk Fat ◽  
Fat Crystallization ◽  
Compositional Effects

Detection of Milk Fat Adulteration by Linear Discriminant Analysis of Fatty Acid Data

1994 ◽  
Vol 77 (5) ◽  
pp. 1326-1334 ◽  
Author(s):  
Franz Ulberth
Keyword(s):  
Fatty Acid ◽  
Discriminant Analysis ◽  
Olive Oil ◽  
Linear Discriminant Analysis ◽  
Palm Oil ◽  
Milk Fat ◽  
Classification Rule ◽  
Gas Liquid Chromatography ◽  
Data Set ◽  
Linear Discriminant

Abstract Analysis of the fatty acid (FA) profile of milk fat (MF) by gas-liquid chromatography is widely used to detect adulteration with foreign fats. On the basis of the FA spectra of 352 genuine Austrian MF samples collected over a 4-year period, the effectiveness of concentration ranges of the major FA of MF and of certain FA ratios to identify non-MF/MF mixtures was tested. FA ratios proved useful for the detection of coconut fat in MF and admixture of vegetable oils rich in linoleic acid down to a level of 2%. This approach failed to identify non-MF/MF blends containing beef tallow, lard, olive oil, or palm oil at a level less than 10% commingling. Linear discriminant analysis applied to FA data was successful in distinguishing pure MFfrom adulterated MF. Computer-simulated data were used to derive the discriminant functions. Saturated and un-saturated FA with 18 C atoms were the most useful discriminating variables selected by a stepwise variable selection procedure. More than 95% of a data set composed of pure MF, and non-MF/MF blends containing 3% of either tallow, lard, olive oil, or palm oil were correctly classified. The validity of the classification rule was also tested by 206 gravimetrically prepared fat mixtures. Mixtures containing >3% foreign fat were detected in all cases.

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