Nutritional evaluation of milk processed for removal of cationic radionuclides.  Chemical analyses

Isaacks, R. E.; Hazzard, D.G.; Barth, Julius; Fooks, Jack H.; Edmondson, L.F.

doi:10.1021/jf60150a011

Cited by 7 publications

(11 citation statements)

References 15 publications

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“…Furthermore, gas chromatographic analysis has shown that the fatty acid composition of the milk fat was not changed by processing. These results are in agreement with those of Isaacks et al (1967). Table 6.…”

Section: Organic Constituentssupporting

confidence: 93%

“…Appreciable losses were observed in thiamine, vitamin B 6 and nicotinie acid whose concentrations were reduced to 33, 85 and 73 % of their original values. Although removal of vitamin B 6 was not observed by Isaacks et al (1967) some loss during treatment was not unexpected as it is weakly basic and might therefore be exchanged for other cations on the resin. Thiamine is more strongly basic and the loss observed both in the present work and by Isaacks et al was most probably due to exchange on the resin.…”

Section: Toxic Metals Iron and Stable Strontiummentioning

confidence: 99%

“…The process used was essentially that described and patented by Murthy, Campbell, Masurovsky & Edmondson (1962). Reports by American workers of applications of the technique on both a pilot-plant scale (450 l./h) (Sadler, Walter, Hanrahan & Edmondson, 1967) and a large scale (5500 l./h) (Producers Creamery Company, 1965;Heinemann et al 1967;Isaacks, Hazzard, Barth, Fooks & Edmondson, 1967) have appeared since this work was started. Our main objective in setting up the plant was to provide first-hand experience of the process, and we now report our findings on the radiochemical efficiency of the process and on the composition of the treated milk.…”

Section: Introductionmentioning

confidence: 99%

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A pilot plant for the removal of cationic fission products from milk: II. Efficiency of the process and composition of the product

Glascock¹,

Bryant²

1968

Journal of Dairy Research

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AS previously described, the process consists essentially of the passage of milk at pH 5-2-5-25 through an ion exchange resin charged with a suitable mixture of the ions of Ca, K, Na and Mg.When citric acid was used for reduction of the pH and 30 resin bed volumes (r.b.v.) were treated, the concentration of residual 85 Sr was reduced to 2-4 % whether it had been introduced in vivo or in vitro. There was no evidence that repeated use of the resin bed resulted in diminished radiochemical efficiency.About the same efficiency of removal of 133 Ba was obtained but this efficiency was achieved with 137 Cs only if not more than 15 r.b.v. were treated. If 30 r.b.v. were treated the concentration of residual 137 Cs was as much as 30%.When hydrochloric acid was substituted for citric acid the residual concentration of 85 Srwas 1 1 % .Analyses of milks processed after adjustment of pH with either citric or hydrochloric acid showed the products to be satisfactory. The only important constituent lost was thiamine. Concentrations of heavy metals remained well below maximum values. Although the flavour of milk was detectably changed by the treatment it was still acceptable.The results are discussed in relation to the problem of achieving maximum decontamination and to the design of a large scale plant.

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Section: Organic Constituentssupporting

confidence: 93%

Section: Toxic Metals Iron and Stable Strontiummentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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A pilot plant for the removal of cationic fission products from milk: II. Efficiency of the process and composition of the product

Glascock¹,

Bryant²

1968

Journal of Dairy Research

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“…In milk treated with Amberlite IR-120 for the removal of Sr, there were losses of 50% thiamine, 27% nicotinic acid and 15% vitamin B e (Isaacks et al 1967). No losses of riboflavin, pantothenic acid, folic acid or vitamin B 12 were found.…”

Section: Ion Exchange Resin Treatmentmentioning

confidence: 95%

“…Treatment of milk with an anion exchange resin (Dowex 2-X8) for the removal of 131 I did not affect the thiamine content, which was about equally distributed between free and bound forms in both the control and resin-treated milks (Barth et al 1970). Isaacks et al (1967), on the other hand, found that Amberlite IR-120 removed 86% of the free and 20 % of the bound thiamine.…”

Section: Ion Exchange Resin Treatmentmentioning

confidence: 97%

Water-soluble vitamins in milk and milk products

Gregory¹

1975

Journal of Dairy Research

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A review of vitamins in milk products, including milk, cream, butter and cheese, has been published by Causeret, Lhuissier & Hugot (1970). A revision (Kon, 1972) of the FAO Nutrition Studies booklet on milk and milk products in human nutrition, written originally by Kon in 1959, has recently been made by others. Although this booklet contains useful information on the composition and nutritive value of the milks of different species and also of the effects of heat treatment on the nutritive properties of milk, it is to be regretted that no attempt has been made to revise data on the levels of B vitamins in the milks of different species. In particular, the folic acid values given are too low. Since about 1964 it has become evident that milk I CO CO

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