The eating quality of various rice varietes was tested. The cooked rices were classified in 2 grades according to stickiness from “superior quality (very sticky)” to “poor quality (a little sticky)”. 1. Rices of “superior quality” grade are Norin No.1, Koshihikari, Koshiziwase and Koshisakae. 2. Rices of “poor quality” grade are Nihonkai, Hokuriku No.52, San-in No.52, Tangin and Mihonisiki. The method involving use of a starch-iodine-bluetest to measure differences in stickiness in white-milled rice was studied. High readings were given by varieties known to be of superior quality (very sticky) while varieties known to be of poor quality (a little sticky) gave low readings. A good correlation was found between the results of the proposed method and the eating quality.
The eating quality of various rice species was tested. The cocked rices were classified in 2 grades with its stickiness from superior quality (very sticky) to “poor quality (a little sticky)”. 1. Rices of“superior quality” are Norin No.1, Koshihikari, Koshiziwase, Yatikogane and Koshisakae. 2. Rices of “poor quality” are Norin No.43, Nihonkai, Fuzisaka No.5, Shin No.7, Norin No.41, Hokuriku No.52, Mihonishiki and Tangin. A Starch-iodine blue test as a quality indication of rice was presented. The white rice put into a metal wire basket was heated at 95-97°C in a definite amount of water and the dissolvod soluton was submitted to a starch-iodine-blue test. Varieties giving lighter color were Norin No.1, Koshihikari, Yatikogane, Koshiziwase, Koshisakae, while varieties giving deep blue color were Yoneyama, Shin No.7, Norin No.41, Hokuriku No.52, Tangin and Mihonishiki. A good correlation was found between the results of the proposed method and the eating quality.
The amines in putrid matsutake mushrooms have been separated systematically. The results indicated the presence of tyramine, phenylethylamine and histamine in the mushrooms, the last being identified by the paperchromatography and elementary analysis of its picrate obtained.
Fourth grade children of two primary schools which stood under the same condition from the geographical and cultural viewpoint in Chiba Prefecture, served as subjects. The levels of vitamin A and carotene in the blood plasma, and the levels of thiamine riboflavin and ascorbic acid in the whole blood were determined at intervals. Results of the determination of the vitamins in the blood indicated that the school feeding contributed largely to improve the nutritional status of the children concerning vitamin A and thiamine.
Among the conditions in the method to estimate curd tension the pH of curdling solution is an important factor. PH of the mixture of milk and enzyme solution by the ordinary curd tension measurement is maintained at 6.2, whereas pH of stomach content of infant after 2 to 4 hours from milk ingestion is 5 to 5.5. To estimate the coagulability of milk in the stomach of infant, the authors recommend that 20 ml. instead of 10ml. of digestion mixture containing pepsin and hydrochloric acid should be added to 100ml. of milk. Even in this case human milk does not coagulate, while many milk products for infant fee ding coagulate distinctly. Spur's method of physiologic tension is the most suitable in these cases.
A 37 year-old woman complaining chiefly of a persistent burning sensation in the lower extremities (burning feet) and girdle pains in the lower thoracic and upperabdominal regions had long been diagnosed wrongly as having beri-beri, neurosis or even psycholsis by other physicians in various hospitals, before she visited our hospital in fall, 1959. Despite her severe distress which was sometimes unbearable, however, a routine examination by means of inspection, palpation, percussion etc. disclosed no marked objective abnormality except indication of undernutrition, but a precise analysis of her -complaints, various clinical examinations and investigation concerning the effect of various treatments confirmed that she undoubtedly had pantothenic acid deficiency. The etiology of the disease in this case seemed to be related with the extreme undernutrition which must have been caused by taking low-protein diet for many years being ordered erroneously by a physician as a therapeutic measure for essential hypertension which she suffered from. Although she used to take a considerable amount of multivitamin preparations, most of those preparations then sold in this country unfortunately contained only 0.5mg. per g. of pantothenic acid, so that the total amount of pantothenic acid that she absorbed from both food and vitamin preparations must have been much deficient. The symptoms in this case became intensified by a tentative administration of various vitamins excluding pantothenic acid, while they were to a great extent improved soon after injection of a large amount of pantothenic acid, together with marked improvement in her spirits, appetite, body weight etc. On the other hand, however, oral administration of pantothenic acid showed no marked effect. A disturbed metabolism of protein was indicated in this case by measuring its content as well as its fractions in the serum, while no sign indicative of deficiency in other vitamins was observed. During our observation of the patient for 28 months, the onset of slight recurrence encountered only twice. Based on the above-mentioning, the symptoms seen in this case was believed to becharacteristic of pantothenic acid deficiency. It was asserted that this paper was present ing the first clinical report on a case with pantothenic acid deficiency in this country.
Seven patients with pantothenic acid deficiency were observed in the past two and a half years. They had characteristic symptoms very similar to those elicited by experimental administration of w-methyl pantothenic acid in human subjects. Those symptoms were improved rapidly by administration of 50 to 100 mg of D-pantothenic acid in all cases, but scarcely by administration of other vitamins. As a rule, the diagnosis was rather easy owing to specific symptoms in those cases, though it was noteworthy that all of them had been diagnosed wrongly and treated inappropriately before visiting our clinic, A proposal was made to designate this syndrome as “pseudotabes apantothenica (Tasaka)”.
In the first and second divisions of this report, the symptoms and treatment of patients with pantothenic acid deficiency were described. In this division, descriptions were made concerning the symptoms of albino rats maintained on a diet deficient in pantothenic acid as well as the symptoms caused by the administration of ω-methyl pantothenic acid, an antimetabolite of pantothenic acid, in albino rats. Then it was found that the symptoms appeared in patients and albino rats with pantothenic acid deficiency were coincident with each other in various respects as appointed out below: 1) Decreases in appetite, body weight and vitalities were observed in both patients and albino rats with pantothenic acid deficiency. 2) Both patients and albino rats with pantothenic acid deficiency were recovered very rapidly by the administration of pantothenic acid calcium. 3) Hyperaesthesia was observed in both patients and albino rats with pantothenic acid deficiency. The albino rats stood with their legs extended and walked on tiptoe in the metabolic cage made of wire netting, endeavouring to have as small part of their sole in contact with the cage as possible. Hyperaesthesia at the sole also persistedfor the longest during the recovery course in patients with pantothenic acid deficiency. 4) Existence of a latent action tremor was disclosed by means of electromyography in two patients with pantothenic acid deficiency, while some descriptions concerning lesions in the central nervous system of albino rats with deficiency were found in the literature. 5) There was no abnormality in the electrocardiogram in both patients and albino rats with pantothenic acid deficiency, indicating an important criterion to differentiate thrn from patients with ben-ben i and animals with thiamine deficiency. 6) In the serum of patients with pantothenic acid deficiency, the concentration of albumin decreased and that of β-globulin and γ-globulin increased. In the serum of albino rats with pantothenic acid deficiency, the amount of total protein and albumin decreased and α1, α2 and β-globulin increased relatively, and especially γ-globulin decreased remarkably. Therefore, it was explainable that the albino rats became feeble and were susceptible to pneumonia and other, suppurative diseases. The patients were also easy to suffer from the common cold, pulmonary tuberculosis, abortion etc. 7) The diet of patients with pantothenic acid deficiency was found to be deficient in other vitamins except vitamin C, in protein and in some of mineral salts. The patients were improved rapidly by giving an excellent food and an ample amount of vitamins. The albino rats with pantothenic acid deficiency were improved i apidly only by the administration of it. 8) An extremely severe lesions (haemorrhage and necrosis etc.) in the adrenal coltex was obserbed in albino rats at the terminal stage of pantothenic acid deficiency, while no abnormality in the function of the adrenal gland in patients with pantothenic acid deficiency. 9) No abnormality in the hair such as graying and alopetia etc. was observed in both patients and albino rats with pantothenic acid deficiency.
The chemical composition, distribution of N and P compounds and fatty acid composition of composite milk from mothers in Sapporo were investigated. 1. The chemical compositions (total protein, fat, lactose and ash) were close to those prsented by NRC. Ca and P were less, but Na was more, than NRC values and those in the Standard Tables of Food Composition in Japan. 2. The ratio of casein: albumin-globulin: non-protein N was 43.0: 37.0: 19.1, -whereby the total N amounted to 181.4mg/100g milk. It seemd that casein N content was a little higher than those obtained for foreign woman milk, although the values in the foregoing literatures varied greatly in themselves. 3. Among several characteristics of fat, the iodine value took the highest numbers ever reported. Linoleic and linolenic acid contents were higher than those in foreign woman milk. 4. The ratio of acid-insoluble P: acid-soluble organic P: inorganic P, in total P of 12.9mg%, was 16.3: 47.3: 36.4. A majority of the acid-soluble P passed through collodion films. Total P of 91.0mg% in cow's milk, on the contrary, showed a higher percentage of inorganic P content, and 31.9% of it was impermeable colloidal P of inorganic nature.
The chemical composition, several characteristics of fat, and fatty acid composition of composite summer and winter milks of various lactation period from mothers in Sapporo were investigated. A little difference in the main components was seen between winter and summer milks, but the average values fell within the range in the foregoing literatures. Iodine value of fat was considerably higher than that of foreign woman milk. Saturated capric, lauric and myristic acid contents were higher, and stearic acid was less, unsaturated linoleic and linolenic acids were more but oleic acid was less compared with those in the milk from foreign women. Although there were certain differences in several characteristics of fat and fatty acid composition between winter and summer milks, they were less remarkable than those seen in the foreign literatures.
It has been clarified by many papers that alkyl benzene sulfonate (ABS) type synthetic detergent is not injurious to the health. Under the food sanitary consideration, the authors made some experiments on food washing with ABS-detergent from the standpoint of domestic science. In case of strawberry washing, the connections between washing procedure and “damage, ”“change in numbers of living organisms, ” and “residual amounts of ABS” was examined in this paper. (1) It is found that the “damage” suffered from washing is more prominent by “rub bing” than “detergent” itself. (2) Although the removal of living organisms on strawberry is very difficult by were washing with water, the washing with detergent removes them efficiently. (3) The residual amounts of ABS on washed strawberry are affected by the condition but only 1-4 p. p. m. of ABS may remain on the strawberry in the case of usual application.