Árbók Háskóla Íslands - 02.01.1955, Blaðsíða 70

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the waste in cooking water was neglicible and slightly more was
retained in the vegetables than when boiled.
Liver (sheep) retained some 80% after having been fried and
cooked (table 16). Freshly cooked roes (cod, one sample) con-
tained 19.6 mg. In an other sample, not examined till two hours
after cooking, only 5.4 mg were found.
PART III
Some observations relative to the vitamin C nutrition.
Plasma values and saturation tests. The plasma values for
small homogeneous groups, at different levels of intake, are
shown in table 17. Members of these groups were also subjected
to saturation tests with results as summarized in table 18, further
details have been given elsewhere (34; 35). The different intake
levels were clearly reflected in the average plasma values, but the
saturation tests did not reveal the smaller differences.
Obviously, the saturation test with big test doses makes possible
only a relatively coarse grading. A number of uncontrolled vari-
ables (e.g. varying extent of destruction of the ascorbic acid) may
significantly affect the outcome and thus impair the value of
this test. Through plasma values it is believed that useful guidance
can be obtained as to the intake level of population groups, pro-
vided that no major changes in intake have occurred shortly be-
fore the observation.
Human milk. The values for human milk (table 19) appear
to be relatively high, considering the time of year. Satisfactory
information about possible extra intakes of ascorbic acid was not
obtained. The dietary intake was estimated at 30 mg.
Adrenals and liver. In table 20 the material (examined few
hours after autopsy) is grouped according to cause of death. In
the cases grouped under “sudden death” there was no evidence
of diseases likely to have affected the vitamin C nutrition. The
adrenal values according to age within this group were as fol-
lows: 2—47 y., 16 cases, average 56 mg/100 g (2—17 y., 8 cases,