Separating effects with fatty acid esters of sorbitan, sucrose, glycerol and propyleneglycol for frozen starch noodle (FSN) were studied.
Separating effects of these esters increased in proportion to the length of alkyl chain of fatty acid. At the same time, separating effect was found to be closely related to the HLB-value of the fatty acid ester. With respect to separating effect, no remarkable difference could be found among the fatty acid esters except sucrose ester. Furthermore, separation of FSN was shown to be highly dependent on the mixing ratio of potato starch and sweet potato starch-the higher the ratio of potato starch, the more difficult the separation, reversely, as the content of sweet potato starch increases, the FSN is easily separated.
The combination of sorbitan stearate and sucrose oleate was most effective not only in separation of FSN, but in shortening of freezing and separating time, depression of swelling and water solubility of FSN, smoothing and glossing the surfaces of FSN.

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The saltness preference and the miso-soup preparation were tested for the schoolgirls of 13-19 years old, and it was discussed whether those results were related to the saltness of miso-soups prepared in their homes.
Pleasant salt concentration on high teen-agers was less than 1.2% of NaCl, and miso-soups prepared were contained about 1.3% salt. Low teen-agers, however, preferred more salty soups and prepared miso-soups with higher salt concentrations than high teen-agers did. Miso-soups cooked in subjects' homes contained less salt than that reported in the literature.
The relationship between results of the preference test and the preparation test was significant for high school girls, but not for students of junior college, whereas the preparation test's data were related to saltness of home-made miso-soups for junior college students, but not for high school girls.

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The influences of pullulan and cellulose on the growth, digestive tracts and intestinal disaccharidi-dases were studied for rats raised on the diets containing various concentrations of pullulan and cellulose.
1. When rats were fed with the diets containing 20% or 40% of pullulan, the gain of body weight was suppressed remarkably. The growth curve of rats fed with the diet containing 40% cellulose was relatively similar to those of the groups given the pullulan diets.
2. The increase of weight of the stomach, small intestine, caecum and large intestine was recognized in the groups given a diet containing 20% and 40% pullulan. The hypertrophic change was great in the caecum. When the rats were given cellulose diets, the weight of large intestine was increased. The intensity of hypertrophy and the site of influence in the digestive tracts of the rats were different depending on the feeding period and the concentration of pullulan and cellulose in the diet. The organs, except for the digestive tracts, were not affected by the diets containing pullulan and cellulose.
3. The activities of maltase, sucrase and isomaltase in the small intestine were not affected by the pullulan and cellulose feeding. However, pullulan was partially hydrolyzed by the enzyme in the small intestinal mucosa in vitro.
4. Also, pullulan was partially digested in the small intestine within a 60 minute period, when pullulan was administered to the stomach using a zonde.
From these results, pullulan seems to be a carbohydrate which is resistant to the intestinal digestion of the rat. The hypertrophy of the intestinal tracts may be due to a physiological adaptation for the unavailable carbohydrate.

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It is generally common that the two factors, the method of the cultivation and the season of harvest, affect the vitamin C contents in vegetable fruits. But, it is not clear which of those factors is more significant.
To elucidate this point, a comparison of the seasonal variation of vitamin C contents between fruits harvested in the open and the green house has been made with tomato-, cucumber-, and eggplant fruits.
The results obtained are summarized as follows:
In the same season, both tomato- and cucumber fruits harvested in the open had vitamin C contents comparative with those harvested in the greenhouse, while eggplant fruit harvested in the open had vitamin C contents slightly richer than that harvested in the greenhouse.
The patterns of the seasonal variation through a year of vitamin C contents in all the fruits studied were similar in the both methods of cultivation. The characteristics of the pattern consisted in the increases in the content of vitamin C from July to October for tomatofruit, from May to July for cucumber fruit, and from May to June and from September to October for eggplant fruit and in its decrease in winter with all fruits.
From these results, it had been concluded that the difference in vitamin C levels between the fruits harvested in the open in summer and those harvested in the greenhouse in winter may be mainly derived from the difference in the season of harvest.
The cucumber- and eggplant fruits on the market are less in vitamin C content than those taken directly from the fields, but with tomato fruit no significant difference in vitamin C content was found.

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The sensitivity of the TBA test paper for detecting lipid oxidation was improved by adding iron salt to the reagent. This paper reacts not only the secondary products containing in the oil, but also the secondary products derived from hydroperoxides during the test.

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