巻号一覧
17 巻, 8-9 号
選択された号の論文の13件中1～13を表示しています
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須藤 俊造, 藤山 虎也1952 年 17 巻 8-9 号 p. 1-6
発行日: 1952/04/25
公開日: 2008/02/29
ジャーナル フリー“Autumn Spores” of Porphyra tenera fix themselves to substrata early in autumn and give rise to winter plants. In previous paper, it was shown that in some fields in Tokyo Bay the autumn spores are not monospores. Now Kunieda (1939) reported that Porphyra tenera could be divided into severl forms, generally into two, i. e. the “long type” and the “round type”. The former predominates in the localities where materials were collected in the previous work. In this report, it was studied whether it is also the case or not in other localities, especially where another type of Porphyra (the “round type”) predominates. Materials were collected at Narawa (Tokyo Bay), Chita (Ise Bay) and Nameishi (AriakeSea). The results obtained were as follows.
1. Spores recognized as “autumn spores” of this alga were collected from sea water early in autumn. They measured all 10-11 μ in diameter in all samples (Fig. 1, 1-4). Monospores from autumn plants measured 14-15 μ (Fig. 1, 5-9). Carpospores in winter are known as 11 μ
2. Sporelings from the “autumn spores” were thinner than those from monospores in all samples (Fig. 2), i.e. the former should start with spores smaller than the monospores (14-15 μ).
From these results it may be conceivable that the “autumn spores” are not mnonospores both in the long type and in the round type. They will be carpospores, which were formed in previous winter and have rested during summer.抄録全体を表示PDF形式でダウンロード (370K) -
サメ肉の鮮度低下とかまぼこを形成する能力について高橋 豊雄, 松本 重一郎, 新井 とみ子1952 年 17 巻 8-9 号 p. 7-14
発行日: 1952/04/25
公開日: 2008/02/29
ジャーナル フリー“Kamaboko” is a fish meat jelly which is familiar to Japanese. To find the limit of spoilage to prepare good “Kamaboko”. the depression strength and the breaking strength of “Kamaboko” jelly were measured by a plunger type tester for each sample prepared from meat of various degrees of freshness. Both properties decreased with proceeding of spoilage of material meat, reaching a minimum value respectively, which appears to be of significance to determine the quality of “Kamaboko”. (Fig. 1)
On the other hand the development of chemical components in the meat during spoilage was described. The characteristic curves of ammonia formation for shark meat as well as of volatile acids were observed. (Fig. 3) However the meat of two teleosts containing less urea gave none of such a curve as shark. (Fig. 4) These observations, in associations with those on other components, assured that decomposition of urea by bacteria are responsible for the marked formation of ammonia in shark meat.
The chemical factors in the spoiling meat underlying the decrease in both the strengths of the prepared jellies appear to be sought, if any, in the change in pH or volatilc bases or in both. (Table 1).抄録全体を表示PDF形式でダウンロード (557K) -
金田 尚志1952 年 17 巻 8-9 号 p. 15-19
発行日: 1952/04/25
公開日: 2008/02/29
ジャーナル フリーThe black cod (Erilepis zonifer LOOKLNGTON) is found in the deep-s_??_a bottom of central Japan. The anthor studied the component fatty acids of this body oil and examined the nutritive value of this oil by Rat-feeding.
The results obtained were as follows.
(1) Black cod was rich in oil and especially the abdominal region of this fish contained 48 per cent of oil.
(2) As shown in Table 1, characteristics of this oil differed from other marine fish oils, i. e. low iodine value, no highly unsatura_??_ed acids.
(3) The mixed fatty acids of this oil contained 29.7% of solid acids (Twitchells lead salt alcohol test), though the lead salt of solids acids was repeatedly washed by alcohol, the iodine value of solid acids showed 51.8.
(4) After several recrystallisation from alcohol the hydroxylated acid manufactured from solid unsaturated acid by Hazura's method of oxidation melted at 118° and its molecular weight was 317.57.
(5) The saturated acids separated from mixed fatty acids by the method of Bertram was small proportions of total acids. (ca. 10%)
(6) The mixed unsaturated acids of this oil consisted mainly of oleic series, i. e. oleic acid (ca. 55%), C20 and C22 acid (ca. 45%). (Table 3) And presence of these acids was clearly demonstrated by Hazura's method of oxidation and ozonisation.
(7) The nutritive value of black cod body oil was better than that of olive or soybeen oils. (Table 4)抄録全体を表示PDF形式でダウンロード (353K) -
オホバモクステロールの構造に就て金田 尚志1952 年 17 巻 8-9 号 p. 20-24
発行日: 1952/04/25
公開日: 2008/02/29
ジャーナル フリーThe anther isolated algal sterol from Sargassum ringgoldianum Harv. (Browh algae) and examined the chemical properties of this sterol.
The results obtained were as follows.
(1) The sterol (m. p. 123°) was isolated from unsaponifiable material of Sargassum-lipids, Chemical properties of steryl derivatives: steryl acetate (m. p. 118°[α]16 ?? =-42.60°), steryl acetate bromide (decomp. p. 128°), steryl benzoate (m. p. 115°) saponification value of acetate (123.68), molecular weight (453.65) (corespond. C31 H50 O2).
From the results of elemental analysis this algal sterol may has the composition C29H480.
(2) Moreover the unsaponifiable material of Sargassum-lipids contains small amounts of sterol of lower melting point (steryl acetate m. p. 100°).
(3) The sterol (m. p. 123°) contains two double bonds and the existence of two ethenoid linkages is clearly demonstrated by perheuzoic acid titration or by preparation of steryl acetate tetrabromide.
(4) Hydrogenation of steryl acetate in ethyl acetate-acetone solution in the presence of paladium-black gives a dihydrosterol (m. p.133°), but no resemblant product has been isolated by Raney-Ni catalyst, so the both of its ethenoid linkages are contained in the condensed ring system.
This algal sterol might be the same as Fucosterol or Pelvesterol.抄録全体を表示PDF形式でダウンロード (280K) -
ニジマスの産卵促進について右田 正男, 松本 重一郎, 木下 寛, 佐々木 瑛, 芦川 一郎1952 年 17 巻 8-9 号 p. 25-31
発行日: 1952/04/25
公開日: 2008/02/29
ジャーナル フリーThe hypophyseal substances of carp or bull-frog were administered to the hatchery rainbowtrout few weeks before their norml breeding season. Males treated with the hypophyses fell in maturation as early as one or a few days after the injection. (Exp. A) On the other hand females similarly treated, compared with those administered with the saline, showed no difference in the distribution of the dates when each ovulation was observed. (Exp. C) Upon the toutching perception from outside of the abdomen, however, the former showed some though slight maturation within a week after the injection, but the latter hardly. (Exp. B).抄録全体を表示PDF形式でダウンロード (495K) -
平尾 秀一, 衣巻 豊輔1952 年 17 巻 8-9 号 p. 32-38
発行日: 1952/04/25
公開日: 2008/02/29
ジャーナル フリーLipides of pyloric caeca contain large amounts of vitamin A. So, various works on vitainin A of the lipides have been reported by many investgators. But we have very little knowleges about the nature of lipides of pyloric caeca. From such a point of view, authors studied lipides of pyloric caeca of cod (Gadus macrocephalus).
Our experiments are as follows:
1. Preparation of lipides.
Chopped pyloric caeca are heated under reduced pressure to remove greater part of water of this tissue. Then alcohol and excess benzene are added and distilled. By such treatment, water remained is distilled out as triazotropic mixture (alcohol-benzene-water). Lipides are obtained after removing excess benzene.
2. Properties and composition of lipides.
Analytical data of the lipides are shown in Table I.
Composition of the lipides is shown in Table II.
Lipides of cod pyloric caeca are characterized by the following points.
a) Large amounts of free fatty acids and small amounts of neutral fats are remarkable. It is due to the factt that the neutral fats of original lipides had already undergone considerable autolysis.
b) Large amounts of unsaponifiable mnatters, vitamin A, sterol and phosphatide are also remarkable. It is probably. characteristic of lipides of pyloric caeca, comparing its data with that of liver oil (unsap., ca. 1%; vitamin A, ca. 10, 000 U. S. P. units; phosphatide, trace).
3. Properties and composition of fatty acids.
Analytical ?? data of fatty acids of the lipides are shown in Table III. Further, studies of fatty acids composition are performed. Results obtained are shown in Table IV, V anal VI. These data indicate that the fatty acids composition of the lipides is analogous to that of cod liver oil.
4. Unsaponifiable matter.
The diagram of Table VII. illustrates the scope of the work. Properties of each fraction, are also shown in this diagram. From the data of each fraction, it is supposed that unsaponiilable matter of the lipides are composed of cholesterol (ca. 40%), vitamin A (ca. 30%), substance containing a conjugated double bond like vitamin D (ca. 10%), higher alcohols and hydrocarbon (ca. 20%). Authors obtained an unsaturated alcohol as anthraquinone β-carboxylate (m. p. 133-134°C). Free alcohol recovered from this ester melts at ca. 24°C and its iodine value is 143. The crystal of this ester is shown in Fig. 1. Futher investigation of this alcohol was not pursued.抄録全体を表示PDF形式でダウンロード (896K) -
本目蛙又及び無結節網地の流水抵抗の違い宮本 秀明, 野村 正恒, 下崎 吉矩1952 年 17 巻 8-9 号 p. 39-44
発行日: 1952/04/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (310K) -
(II) Cellulose添加に依る蛋白消化古川 厚, 小笠原 義光1952 年 17 巻 8-9 号 p. 45-48
発行日: 1952/04/25
公開日: 2008/02/29
ジャーナル フリーThe digestibillty of protein in diets with various quantities of cellulose is measured by the method reported in the previous paper, Vol, 14, No. 4, 1948, of this Bulletin.
The digcstibilities are shown in table 7.
These results show that then is almost no difference between each diet division of. experiment, but digestibility deviates larger with increase of cellulose content, and energy sperded by various movements coincides with increase of cellulose.
Fattening ratio was 1.63 in control, 2.65 in 5%, 15.97 in 10%, 4.35 in 15% cellulose diet diviscn, and the increase of body weight in 5 days was 1gr. in control, 0.6gr. in 10%, 0.4gr. in 15%.
Consequently better result might be obtained when cellulose eontcnt in diet is smaller.抄録全体を表示PDF形式でダウンロード (265K) -
日向灘産カタクチイワシの産卵に及ぼす海況の要因について辰喜 恭五郎, 古川 一郎1952 年 17 巻 8-9 号 p. 49-55
発行日: 1952/04/25
公開日: 2008/02/29
ジャーナル フリーThe observations embodies in the prescent report were done during a period extending from April, 1948 to August, 1950 with a view to investigate into Occanographical conditions with special reference to the spawning of the Anchovy, Engraulis japonicus T & S. Fig. 3 shows location of 22 definite stations in Hyuganada where the study was continuonsly repeated once a month, with the results as given in Table 1. The fish abundantly spawned as tabufated in Table 4, when temperature lay between 17° and 22°C, and the salinity between 34.00‰ and 34.70‰. The data at our disposal gave the correlation coefficient between the water temperature and the spawning as -0.767, and the one for the salinity with respect to the same as +0.721.
Monthly means for the temperature were then computed of the 22 stations. Differences from the means for each stations were calculated.
These differences were then averaged down respectively. It was such localities where the above mentioned averaged differences were null or negative that the spawning of the fish was fond favorable. Fig. 4 delineates this relation.抄録全体を表示PDF形式でダウンロード (405K) -
日向灘産「マイワシ」に関する二三の観察辰喜 恭五郎, 浅見 忠彦1952 年 17 巻 8-9 号 p. 56-59
発行日: 1952/04/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (217K) -
カタクチイワシの背推骨の變異と生長について横田 滝雄, 古川 一郎1952 年 17 巻 8-9 号 p. 60-64
発行日: 1952/04/25
公開日: 2008/02/29
ジャーナル フリー(1)「カタクチイワシ」の脊椎骨数の標本平均値と推定発生時の水温との関係はy=46.46-0.063x(y脊椎骨数の平均値,xは水温)従つて脊椎骨数の変異は季節的なものである
(2)「カタクチイワシ」の月生長はy=3.41t0.492一糎の抛物線にて示され,発生12ケ月で体長12糎18ケ月で体長14糎となる宮崎県沿岸では体長15糎以上のものは殆ど漁獲せられない。
(3)土々呂近傍の舩曳網にて昭和24年度に漁獲された「カタクチイワシ」刻について0.5糎間隔で別けた級別体長組成は8038(0.25+0.75)20なる二項方布式で示される。抄録全体を表示PDF形式でダウンロード (306K) -
小林 新二郎, 結城 了伍1952 年 17 巻 8-9 号 p. 65-72
発行日: 1952/04/25
公開日: 2008/02/29
ジャーナル フリーArtificial breeding of Japanese pearl oyster, Pinctada martensii was carried out, following the culture method devised by Prof. T. Imai and others of Onagawa Fisheries Laboratory of Tohoku University, and successful settling of spat was obtained.
The development of larvae is illustrated in Figs. 1-9, Shell size at the time of unbo-deve-lopment was 90-110 μ in height and 100-110 μ in length. Settling occurred when larvae reached 170-200 μ in height and 200-250 μ in length.
In thank No. c-1 with a capacity of 8, 000 litre, it was possible to obtain over 137 thousands of spat, 17.1 per cent of the number of straight hinge veligers set free at the start. The records of cultures are summarized in Tables 2-5.抄録全体を表示PDF形式でダウンロード (713K) -
第1報ヒメエゾボラ(ネムリツブ)の毒の所在に就て浅野 元一1952 年 17 巻 8-9 号 p. 73-77
発行日: 1952/04/25
公開日: 2008/02/29
ジャーナル フリーConsumptions of Neptunea Arthritlca, a gastropod distributed in the northern sea, have cansed-many poisoning in Hokkaido. The splitting headache, dizziness, bad feeling as seasick, vomiting and others were recorded as the symptoms of intoxication. Although this shellfish has been consumed widely, the poison has not yet been studied.
In this paper, the author substantiated the fact that this poison exists only in salivary gland and not in other organs. Judging from the behaviour of mice and cats applied with this poison, it seems to belong to a poison of paralytic form (nerve poison). Removal of the salivary glands before the consumption or canning of this shellfish, would be desirable to prevent the co nsurners from poisoning.抄録全体を表示PDF形式でダウンロード (484K)
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