It is considered that Hg will be transfered into milk, if cows take the feeds contaminated with PMA. To make clear this point, Hg-203 labelled PMA was administered orally to two lactating cows and six lactating goats, intravenously to two lactating cows. The excretion of Hg into feces and urine, the transfer of Hg into milk and the residue of Hg in some organs were studied.
Most of Hg of PMA administered orally was excreted into feces (70-85% of dose) and urine (2-5%). On the contrary, the transfer of Hg into milk was small in amount (0.2-0.8%), but continued for a long term. The residue of Hg in kidney was larger in amount, and higher in concentration than that in liver. However, the small amount of Hg was detected in brain (0.02-0.03%).
Hg of PMA administered intravenously was excreted into feces (40-48%), and urine (7%). The transfer of Hg into milk was the same as in the case of oral administration (0.6%). The residue of Hg in kidney was larger in amount, and higher in concentration than that in liver. The residue of Hg in brain was very small in amount (0.02%).
The period in which half amount of administered Hg was excreted, was 2-3 days in the case of oral administration, while, it was 20-25 days in the case of intravenous administration.

View full abstract

The texture and hedonic preference of both bavarois which were made by the use of Low-methoxyl pectin and by the use of gelatin were examined by the instrumental measurements and sensory evaluation.
On the basic jelly of bavarois, the concentrations of 1% Low-methoxyl pectin, 2.0 and 2.5% gelatin were preferable. Moreover, it was recognized that there was a tendency that Low-methoxyl pectin jelly was preferred by the young aged and the gelatin jelly by the more than middle aged.
As far as the characteristic values of the texture of four kinds of bavarois were measured using a rheolometer, Low-methoxyl pectin bavarois showed the values of lower hardness and the larger adhesiveness than the gelatin bavarois, and the bavarois with egg white was softer than the one with egg yolk and adhesiveness of the former was a little larger than that of the latter.
However, there was no significant difference in the overall acceptable evaluation on the hedonic preference of the sensory evaluation by seven point-test of both side scale.
The correlation matrix among the overall acceptable evaluation and the preference parameters (sweetness, hardness, mouth-feeling, elasticty, cohesiveness and adhesiveness) were calculated. The significant correlations among them were recognized.
The multiple correlation coefficients of the preference parameters for the overall acceptable evaluation was calculated from higher correlation coefficient value to the lower, and the F-test was carried out. A significant correlation for all of them was found.
Further, the equations of multiple regression were successively derived. Consequently, it was recognized that the overall acceptable evaluation was influenced by cohesiveness most and subsequently, mouth-feeling and adhesiveness.

View full abstract

Digestibility in rat was investigated for sucrose ester of stearic acid, a class of a polyalcoholicnonionic surface active agent synthesized without use of DMFA after the method of Nebraska-Snell.
The sucrose ester used was composed of 51%, 38% and 11% of mono-, di- and poly-stearate, respectively. The test diet containing the sucrose ester by 2.5, 5 or 10% was fed to rats for 3 days following one day fast. The feces and urine during the test period were collected and analyzed the content of the sucrose ester, free saccharose, free fatty acid and other major nutrients.
Rats fed on a diet containing 10% of the sucrose ester excreted a loose passage, but on diets of 5% and 2.5% a normal passage. The digestibility of the sucrose ester was found to be closely related to its degree of substitution, since the digestibilities of mono-, di- and poly-ester were approximately 80%, 30% and 20%, respectively. The dose of the sucrose ester resulted in little change of free saccharide content, but a remarkable increase of free fatty acid content in the feces. Sucrose ester of stearic acid was never found in the urine. These experimental results led to conclude that a portionof the sucrose ester fed to rat is hydrolyzed in the digestive tract of the animal.
With increasing amount of the sucrose ester in the diet, the rats consumed a slightly decreased amount of diet and inversely discharged increased amount of feces, and the digestibility of other major nutrients in the diet, i. e. protein, fat and carbohydrate, slightly decreased.

View full abstract

Shown in the preceding paper, the digestibility of the sucrose ester of stearic acid in rat was revealed to vary with the degree of substitution in sucrose molecule. This paper is to explore the relation possibly existing between the digestibility of the sucrose esters and the structure of fatty acid moiety; the length of carbon chain and the degree of unsaturation.
Various sucrose esters were prepared using lauric, stearic, oleic and behenic acid, and hydrogenated tallow as fatty acid moiety. Rats were maintained on the diet containing these esters at 2.5%level.
The digestibility was found to be dependent on the content of mono-ester; the sucrose esters prepared with hydrogenated tallow containing 72, 50 and 15% of the mono-esters on weight basis were digested in the rat 80, 58 and 24%, respectively. The digestibility was also found different by the fatty acid constituent even at a constant mono-ester level ; the digestibilities of sucrose esters of lauric, stearic, oleic and behenic acid were 92, 59, 83 and 19% respectively, mono-ester level being adjusted to around 50% except for benenate. These facts could be interpreted to indicate a close relationship between the digestibility and the HLB of the sucrose ester, i. e. sucrose ester of the higher HLB is more digestible.

View full abstract

Effect of maltitol administration on serum component was observed in the five normal volunteers (male adults). Maltitol was given in the early morning in a dosis of 0.5 gm per kg body weight with 100ml/water, and also for 7 days and 30 days. Diarrhoea was not observed in this maltitol administration.
Blood glucose was increased as 20 percent in three volunteers one hour after the maltitol administration. However, level of plasma maltitol was 1.08 mg/dl (0.66-1.52).
No change was observed in the total protein, A/G ratio, electrophoretical protein fractions, Tymolflocculation test, zinc sulfate test, chepharin cholesterol flocculation test, cholesterol, creatinin, urea nitrogen, uric acid, sodium, potassium, phosphate, chloride, ferrus, alkali phosphatase, acid phosphatase, cholinesterase, serum amylase, GOT, GPT, lactic dehydrogenase and leucine amino-peptidase.
From these results, it is concluded that maltitol administration will not provide any effect on serum components in a dosis except causing diarrhoea.

View full abstract

The total lipids extracted from market pressed ham were separated into phospholipid and neutral lipid fractions, and the fatty acid compositions of these lipid fractions were determined by gas-liquid chromatgraphy. Then, the fatty acid distribution in triglycerides of the lipids were studied by means of pancreatic lipase hydrolysis, and the triglyceride composition of the lipids were calculated according to the 1, 3-random-2-random distribution theory.
The fatty acid compositions of tested samples differed among the grades of commercial products in each lipid fraction and such differences were most remarkable in the fatty acid composition of neutral lipid fractions.
The structure and the composition of triglyceride of the lipids, extracted from some samples, were remarkably resemble to that of the pork lipid, and the lipids from the others had properties approximately closed to that of the mutton lipid. Thus, the properties of the lipids tested were considerably differed in the structure and composition of triglycerides among the grades of market pressed ham.
And, it was considered that the examination of fatty acid and triglyceride composition of the commercial products was applicable for the judgment of raw materials which may be used in the manufacture of pressed ham.

View full abstract