The Japanese Journal of Nutrition and Dietetics
Online ISSN : 1883-7921
Print ISSN : 0021-5147
ISSN-L : 0021-5147
Volume 16, Issue 5
Displaying 1-6 of 6 articles from this issue
  • Difference of Limpidity Effect of Apple Species and its Quality
    Y. Ayano, N. Inoue
    1958 Volume 16 Issue 5 Pages 141-143
    Published: 1958
    Released on J-STAGE: October 29, 2010
    JOURNAL FREE ACCESS
    Limpidity of apple juice was tested effecting 0.2% enzyme product obtained from bran Koji Penicillium chrysogenum Q 176 to natural apple juice at 40°C and 50°C.
    Among the 5 species conducted, “Ko-gyo-ku” and “Golden delicious” showed the finest limpidity effect. Better effect was obtained at about 40°C rather than 50°C, effecting duration was found to exist between 10 to 15 minutes except the case of “Delicious.”
    Download PDF (3494K)
  • On the General Components and its Changes during Storage of Sweet Potatoes
    K. Matuzawa, S. Innami, T. Kuga
    1958 Volume 16 Issue 5 Pages 145-148
    Published: 1958
    Released on J-STAGE: October 29, 2010
    JOURNAL FREE ACCESS
    In this report, the general components of various kinds of sweet-potatoes and their amylase activity were measured, and the changes of several components during their storage were investigated.
    Total soluble sugar content of sweet potatoes rich in carotene were more than those of poor carotene, and starch content less generally.
    At the harvest time, starch content was high, and then it decreased gradually with the process of their storage. On the other hand, the content of reducing and total soluble sugar were low at the harvest time, and they increased markedly till December,
    In the following stage of storage total soluble sugar content continued to increase, but reducing sugar content showed no change.
    Download PDF (4432K)
  • On the Extraction Method of Carotene from Sweet Potatoes
    K. Matuzawa, S. Innami, T. Kuga
    1958 Volume 16 Issue 5 Pages 149-152
    Published: 1958
    Released on J-STAGE: October 29, 2010
    JOURNAL FREE ACCESS
    (I) 100g of sweet-potato powder (40 mesh) was extracted seven times with 550cc of petroleum ether (b. p. 60°-70°C), divided into seven portions: 200, 100, 50, 50, 50 50 and 50cc. The combined extract was concentrated to 50cc under reduced pressure. The concentrated matter was saponified with 20cc of 5% alcholic KOH overnight at room temperature, and after washing with water the concentrated carotene was obtained by evaporating under reduced pressure. The concentrated carotene from carrot powder was compared with that of the sweet potato under the same conditions.
    (II) The raw material of sweet-potato “Yo No. 7”, after crashing and pressing, was separated into juice and pressed residue. By this treatment, carotene in raw material was divided into juice and pressed residue, 64% and 36% respectively. By heating the juice above 80°C, coagulated matter was obtained. This coagulated matter was the concentrated substance that contained much more carotene than raw material, but the amount produced was poor.
    Download PDF (4531K)
  • On the Indice of Physical Constitution (Part 2)
    T. Sato
    1958 Volume 16 Issue 5 Pages 153-158
    Published: 1958
    Released on J-STAGE: October 29, 2010
    JOURNAL FREE ACCESS
    Similarly the part 1, comparative studies are made on the girth of the chest ratio, the sitting height ratio, Rohrer's index, Kaup's index and the girth of the upper arm of blind and normal school-children (6-19 year) in four prefectures of Tohoku district, and the following characteristics are found.
    (1) In the weight and the girth of the chest, blinds are not so inferior to normals as in the height, therefore the girth of the chest ratio and Rohrer's index of blinds are somewhat greater than normals'.
    (2) The sitting height ratio of blinds are greater than normals' in spite of the height of blinds are inferior to normals' so it seems that blinds have shorter legs than normals.
    (3) Kaup's index of blinds are inferior to normals'.
    (4) The girth of the upper arm of blinds are greater than normals' at the young ages, but the elder ages in school-life are inferior to normals.
    Download PDF (7021K)
  • Haruo Baba
    1958 Volume 16 Issue 5 Pages 159-163
    Published: 1958
    Released on J-STAGE: October 29, 2010
    JOURNAL FREE ACCESS
    This report presents studying and applying attempted of new method of fractionation of protein with salting-out by ammonium sulfate, turbidimetric titration, previously reported by other authors. That principle is using of ΔT/ΔC, in which ΔT is increment of degree of turbidity and ΔC is increment of degree of saturation of ammonium sulfate. It was convinced that this method is very convenient and suitable on the fractionation of ovalbumin, egg white and normal human serum, so this method is applied to fractionation of protein extracted of fish muscle, clam muscle, clam hepatopancreas crystalline style and human plasma. The good results were obtained from the application of this method, and each extracts are fractionated vividly. The results were shown from figure 1 to figure 10.
    Download PDF (5831K)
  • Comparison of the Utilization of Vitamin A and Carotene
    H. Matsumuro, S. Kitagawa, K. Ito, L. Hayashi, K. Matsuzaki
    1958 Volume 16 Issue 5 Pages 165-167
    Published: 1958
    Released on J-STAGE: October 29, 2010
    JOURNAL FREE ACCESS
    To compare the availability of carotene with vitamin A, the following experiment was carried out by using the synthetic vitamin A and the crystal carotene.
    The biological assay followed mostly the report. I. In view of the growth response, there was not any noticeable difference between both groups, but the carotene group was lower than vitamin A one; the ratio of increase of the body weight was 3:4, as shown in Fig 1 and Table. The amount of vitamin A storage in liver was slightly recognizable in both groups, but in the vitamin A group it was appreciably higher than in the carotene group, as shown in Table 1, moreover, the femals were superior in vitamin A storage to the males.
    From the points of excretion of vitamin A and carotene in feces, the amount of the excreted vitamin in feces reached to the maximum on the 2nd and 3rd day after dosing, as shown in table 2. The excretion ratio of vitamin A is assumed 5% in the synthetic vitamin A and that of carotene is 10% in the crystal form.
    Download PDF (3476K)
feedback
Top