The Effect of Locality and Season on the Composition of South African Whole Milk

Smit, Louwrens E.; Schönfeldt, Hettie C.; Beer, W. H. J. de; Smith, Marie F.

doi:10.1006/jfca.2000.0903

Cited by 24 publications

(21 citation statements)

References 11 publications

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“…This variation was also due to the odour deviation of 2-weekold cheeses made in week 37 (close to the time of the year when the diet of cows is changed to concentrated feed). This variation is probably caused by seasonal variations in the milk used for cheese making (Smit, Schonfeldt, de Beer, & Smith, 2000).…”

Section: E-nosementioning

confidence: 99%

Electronic nose: New tool in modelling the ripening of Danish blue cheese

Trihaas

Vognsen

Nielsen

2005

International Dairy Journal

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Section: E-nosementioning

confidence: 99%

Electronic nose: New tool in modelling the ripening of Danish blue cheese

Trihaas

Vognsen

Nielsen

2005

International Dairy Journal

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“…Three milk samples from each site were collected from the bulk milk tanks. The sampling procedure was in strict adherence to the International Dairy Federation (IDF) standard methods of sampling for bulk milk (Smit et al, 2000). The milk samples were collected in 250 ml glass bottles from the bulk tank on each farm and immediately placed in a cooler box.…”

Section: Samplingmentioning

confidence: 99%

Quantification of trace elements in raw cow’s milk by inductively coupled plasma mass spectrometry (ICP-MS)

et al. 2008

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The levels of trace elements are an important component of safety and quality of milk. While certain elements such as chromium are essential at low levels, an excess can result in deleterious effects on human health. International quality control standards for milk are published by the Codex Alimentarious Commission and levels of heavy metals in milk intended for human consumption are routinely monitored. This paper describes a new method for demonstrating the levels of V, Cr, Mn, Sr, Cd and Pb in raw cow's milk, using an ICP-MS. Samples (n = 24) of raw cow's milk were collected from dairy farms close to mines in Gauteng and North West Provinces of South Africa. In order to destroy organic matrix, each freeze dried milk sample was mineralised by using a microwave assisted digestion procedure. Concentrations of trace elements in digested milk samples were measured by ICP-MS. A whole milk powder reference material (NIST SRM 8435) was used to evaluate the accuracy of the proposed method. It was found that the levels of V, Cr, Mn, Sr, Cd and Pb obtained using the new method showed concordance with certified values.

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“…The whey content varied between 7.5 and 9.4 g/kg, and, calculated by subtraction, the casein content varied between 39.4 and 51.1 g/kg. The protein content compares with that of ovine milk (Pirisi et al 1999), but is at least 70% higher than that found in bovine (Jennes and Patton 1976;Smit et al 2000) and caprine (Simos et al 1991) milks. The protein bands observed in the electropherograms of sable antelope's milk (Fig.…”

mentioning

confidence: 72%

“…The proximate analysis of the milk of the two sable antelope is shown in table 1 and the fatty acid composition of the fat fraction of these milk samples in table 2. For comparison with milk from known ruminants, the analysis is compared with bovine (Jennes and Patton 1976;Smit et al 2000), ovine (Pirisi et al 1999) and caprine milk (Simos et al 1991). The milk of the sable antelope contains more of all the nutrients than bovine and caprine milk, but seems to be comparable with that of ovine milk.…”

mentioning

confidence: 99%