摘要:

In sterilized spinach which was inoculated with bacteria, a reduction of NO-3 to NO-2, due to their metabolic activity, was detectable, depending on the holding conditions. The reaction rate was highest in the presence of thermophilic bacteria. A lower reaction rate was altogether found with mesophilic bacteria which, depending on counts and holding time, may temporarily cause high nitrite contents. The reaction rate was lowest with cold-tolerant bacteria.

ISSN:0250-6807    

DOI:10.1159/000176318

出版商:S. Karger AG    

年代:1980

数据来源: Karger

摘要:

The effects of oxythioquinox (200 mg/kg fresh food for 30 days) on the growth, feeding, body composition and weight of various organs were studied in rats receiving isocaloric diets containing varying amounts of alimentary lipid (3, 18, 35 and 49%). With the exception of the liver, the kidneys and the ratio of ingested protein/gain in body proteins, which increased, all the investigated parameters showed a significant decrease under the effect of oxythioquinox. Since the various diets were isocaloric and the ratio total calories/proteins (g) was constant, no effects directly due to the level of lipid were seen on the parameters studied except the weight of the caecum which decreased. The interactions observed mirror an antagonism between the effects of the lipids and those of oxythioquinox.

ISSN:0250-6807    

DOI:10.1159/000176319

出版商:S. Karger AG    

年代:1980

数据来源: Karger

摘要:

In order to study the effects of a zinc-supplemented dietary rapeseed protein concentrate on the contents of zinc and some other minerals in plasma, liver and bone tissue as well as on the levels of tocopherol, lipoproteins and lipids in plasma and total lipid contents of livers, groups of young female rats were fed for 4-week periods on semi-purified diets containing either rapeseed protein or casein as the sole source of protein at a 20% protein level. Despite normal levels of tissue zinc and plasma proteins, rats on diets containing rapeseed protein showed reduced contents of plasma lower density lipoproteins and tocopherol in comparison to the casein-fed rats. Rats on rapeseed diet also seemed to have an increased lipid content of the liver possibly indicating a reduced hepatic synthesis or secretion of lipoproteins. In addition the livers of rats fed on rapeseed protein diet showed a reduced iron content.

ISSN:0250-6807    

DOI:10.1159/000176320

出版商:S. Karger AG    

年代:1980

数据来源: Karger

摘要:

By means of food diaries the volume of the average daily crude fiber and dietary fiber consumption and the percentage contribution of various groups of plant foods to the total dietary fiber consumption was determined in a group of 150 healthy subjects (89 males and 61 females) from four different occupational groups. It thus became apparent that the mean daily dietary fiber consumption was 22.0 ± 5.5 g in the artisans and workers of a large industrial plant (group I), 24.8 ± 8.4 g in students (group II), 21.7 ± 5.5 g in teachers (group III), and 17.6 ± 7.7 g in administrative employees (group IV). In groups I-III the mean daily dietary fiber consumption was significantly higher than in group IV. In 17% of the subjects, the mean daily dietary fiber consumption was ≤ 15 g. The mean dietary fiber intake per 1,000 kcal (4.18 MJ) in groups II and III, 8.5 ± 1.5 and 8.8 ± 2.2 g, respectively, was significantly higher than in group I with a mean fiber intake of 7.2

ISSN:0250-6807    

DOI:10.1159/000176321

出版商:S. Karger AG    

年代:1980

数据来源: Karger

摘要:

The energy requirements for synthetic processes during growth in the male reference baby of 3,900 g at 3 weeks of age, growing along the 50th percentile have been recalculated, taking into account physiological values for P/O ratios of NAD- and FAD-linked substrates in oxidative phosphorylation and the processing and splicing of precursor RNA. An amount of 2.1% of the total energy intake is needed to cover the needs for synthetic processes associated with growth.

ISSN:0250-6807    

DOI:10.1159/000176330

出版商:S. Karger AG    

年代:1980

数据来源: Karger

摘要:

Na+, K+-ATPase was studied in developing rat brain during undernutrition. The activity of Na+, K+-ATPase was significantly lower in animals that were undernourished from 6 to 17 days after birth than in well-nourished controls. The decreased activity of the enzyme was partially recovered after 4 weeks of rehabilitation. No change in the cation contents of brain following undernutrition was observed. The decrease in Na+, K+-ATPase activity was possibly due to the reduction in cholesterol contents and could be responsible for the observed functional changes associated with malnutrition or undernutrition during development.

ISSN:0250-6807    

DOI:10.1159/000176331

出版商:S. Karger AG    

年代:1980

数据来源: Karger

摘要:

A fed and a starved group of mice were injected with a 14C-labelled triolein emulsion, similar to Intralipid®, in a dose corresponding to 0.1 mg triglyceride per gram body weight. The animals were sacrificed from 30 sec to 24 h after injection. The tissue distribution of the fat emulsion depended on the nutritional state of the animals. A marked concentration of radioactivity was found in the gastric mucosa of all animals as soon as 30 sec after injection which declined with time but was still clearly discernible in the autoradiograms 24 h after injection. Although the radioactivity only demonstrates the presence of the labelled oleic acid without indication of the degree of triglyceride lipolysis, the autoradiograms showed marked differences in the concentration of radioactivity between the various groups of skeletal muscles and between the different parts of the reticulo-endothelial system

ISSN:0250-6807    

DOI:10.1159/000176332

出版商:S. Karger AG    

年代:1980

数据来源: Karger

ISSN:0250-6807    

DOI:10.1159/000176333

出版商:S. Karger AG    

年代:1980

数据来源: Karger