Influence of feed composition on stability of fat globules during pumping of raw milk

Wiking, Lars; Björck, Lennart; Nielsen, Jacob Holm

doi:10.1016/s0958-6946(03)00110-9

Cited by 79 publications

(84 citation statements)

References 21 publications

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“…Large fat globules are more susceptible to shear stress than smaller fat globules (Hinrichs & Kessler, 1995;Wiking, Bj . orck, & Nielsen, 2003).…”

Section: Agitationmentioning

confidence: 99%

“…In practice, high shear forces can occur in poorly designed pumps, pipelines and other equipment (Lehman, 1982) and they result in the adsorption of plasma protein, notably casein, to the fat globule surface (Michalski, Michel, Sainmont, & Briard, 2001). Wiking et al (2003) showed that the resistance of fat globules against coalescence during pumping is determined by a combination of factors including fat globule size, fat content, temperature of the milk and shear rate.…”

Section: Agitationmentioning

confidence: 99%

See 1 more Smart Citation

The milkfat globule membrane—compositional and structural changes post secretion by the mammary secretory cell

Evers

2004

International Dairy Journal

129

114

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“…Large fat globules are more susceptible to shear stress than smaller fat globules (Hinrichs & Kessler, 1995;Wiking, Bj . orck, & Nielsen, 2003).…”

Section: Agitationmentioning

confidence: 99%

Section: Agitationmentioning

confidence: 99%

The milkfat globule membrane—compositional and structural changes post secretion by the mammary secretory cell

Evers

2004

International Dairy Journal

129

114

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“…uckiger & H. anni, 1980;Kirst, 1980aKirst, -c, 1981Kirst, , 1996Fl . uckiger, H. anni, Jegerlehner, & Graber, 1981;Herbst et al, 1984;Rudzik, 1987;Evers et al, 2001b;Wiking, Bj . orck, & Nielsen, 2003).…”

Section: Free Fatty Acidsunclassified

The milkfat globule membrane—methodologies for measuring milkfat globule (membrane) damage

Evers

2004

International Dairy Journal

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“…Authors of various articles were concerned with FFA analytical methods (Sjaunja, 1984;Koops et al, 1990;Foss, 2001Foss, , 2004Bijgaart, 2006;Hanuš et al, a, 2009) and above mentioned methodical complications ensued on these papers. Reference and routine FFA analytical methods can be so called extraction-titration method, churning-titration method, BDI and mid infrared spectroscopy (MIR) also in modifi cation with Fourier's transformations (MIR-FT; CSN 57 0533; Koops et al, 1990;IDF, 1991;Cvak et al, 1: Lipolysis rise of fat in raw milk, content increase of free fatty acids (FFA), threat of milk and dairy product quality -factors and their combinations, related to animal and technology (modified according to Sjaunja (1984), Shelley et al (1987), O'Brian et al (1998), , Ma et al (2000), Antonelli et al (2002), Santos et al (2003), Wiking et al (2003Wiking et al ( , 2006, Hanuš et al (2004, Thomson et al (2005), Ferlay et al (2006), Genčurová et al (2009) and Mikulová (2011 1992; Foss, 2001Foss, , 2004Thomson et al, 2005;Bijgaart, 2006;Mikulová, 2011).…”

Section: Defi Nition Of Ffas and Paper Goalmentioning

confidence: 99%

Evaluation of development in indirect determination of milk fat free fatty acids in Czech Republic

Hanuš¹,

Samková²,

Řı́ha³

et al. 2013

Acta Univ. Agric. Silvic. Mendelianae Brun.

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HANUŠ OTO, SAMKOVÁ EVA, ŘÍHA JAN, VYLETĚLOVÁ KLIMEŠOVÁ MARCELA, ROUBAL PETR: Evaluation of development in indirect determination of milk fat free fatty acids in Czech Republic. Acta Universitatis Agriculturae et Silviculturae Mendelianae Brunensis, 2013, LXI, No. 6, pp. 1669-1679 Free fatty acids (FFAs) in fat are important indicator of raw milk quality. Result reliability of FFAs is important. Aim was to verify MIR-FT (mid infrared spectroscopy with Fourier's transformations) method for its calibration to determine FFAs, time stability of MIR-FT FFA calibration and calibration levelling in laboratory networks. Reference (RE) milk samples (1 set = 8) were prepared according to CSN 57 0533 (FFAs in mmol.100g −1 of fat). MIR-FT instruments were: 1 LactoScope FTIR (DE); 2 Bentley FTS (BE); 2 MilkoScan FT 6000 (FO). 3 calibrations of MIR-FT (5) in 3 laboratories were performed. Bulk milk samples came from 4 herds and 2 breeds. These 4 samples were used for calibration in native and modifi ed form. Modifi cation increased FFAs by cca 100%. Calibration set had 8 samples. 1 between calibration interval was checked monthly by profi ciency testing (PT). PT set had 10 samples. 5 samples were with native milk and 5 had modifi ed fat content, lower and higher. Maximal value of diff erence variability for calibration quality validation is x (sd of diff erence MIR-FT and RE) plus 1.64 multiple of sd (on 95% level), 1.0613 mmol.100g −1. Mean validation correlation coeffi cient (r) between MIR-FT and RE results was 0.802 ± 0.082 (P < 0.001), from 0.666 to 0.945. Minimal value at calibration is x minus 1.64 multiple of sd (0.668). Correlations between MIR-FT results were higher by 8.4% (0.869 (P < 0.001) > 0.802). Example PT with 10 and 5 milk samples had similar results of r 0.887 and 0.953 (P < 0.001 and P < 0.05). There is possibility to construct a levelling programme for calibrated instruments. Some equation between PT reference and instrumental values could correct MIR-FT results for their better comparability.raw cow milk quality, fat, reference, titration, infrared spectroscopy, stability of calibration, result reliability, profi ciency testing, result levelling Determination and interpretation of free fatty acids (FFAs) in milk

show abstract

Influence of feed composition on stability of fat globules during pumping of raw milk

Cited by 79 publications

References 21 publications

The milkfat globule membrane—compositional and structural changes post secretion by the mammary secretory cell

The milkfat globule membrane—compositional and structural changes post secretion by the mammary secretory cell

The milkfat globule membrane—methodologies for measuring milkfat globule (membrane) damage

Evaluation of development in indirect determination of milk fat free fatty acids in Czech Republic

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