巻号一覧
16 巻, 1 号
選択された号の論文の7件中1～7を表示しています
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須藤 俊造1950 年 16 巻 1 号 p. 1-9
発行日: 1950/05/25
公開日: 2008/02/29
ジャーナル フリーPDF形式でダウンロード (667K) -
第II報p-キノンによる魚肉鮮度の鑑定小幡 彌太郎, 座間 宏一1950 年 16 巻 1 号 p. 10-14
発行日: 1950/05/25
公開日: 2008/02/29
ジャーナル フリーThe color reaction of pyperidin, of the bacterial decomposition product of Lysin, against p-quinone has been proved applicable as a simple method for the judgement of the fish meat freshness, as it was recognized that the fish meat treated with p-quinone assumed a red coor more rapidly in proportion to the progress of its putrefaction. This method is applicable also for the freshess judgement of boiled fish paste and smoked fish. In the case of smoked fish, however, the experimental result obtained tells that the color reaction is affected by the wood-tar component which is noticeably contained in the sample as its alcohol extract shows.抄録全体を表示PDF形式でダウンロード (333K) -
蠅卵の死滅温度と時間佐藤 健1950 年 16 巻 1 号 p. 15-18
発行日: 1950/05/25
公開日: 2008/02/29
ジャーナル フリーMaggot harm in the manufacturing of aquatic food products in warm season is very great.
The result of the experiment carried on the keeping from maggot harm is shown in the following tables (I-III).
It is clear that fly eggs are killed by heating at low temperartue and in short time, but the eggs layed on the semi dry salted fish cannot be killed by heating without causing the denaturation of fish meat.抄録全体を表示PDF形式でダウンロード (182K) -
蠅蛆の死滅温度と時間佐藤 健1950 年 16 巻 1 号 p. 19-20
発行日: 1950/05/25
公開日: 2008/02/29
ジャーナル フリーThe temperature and time needed for the killing of fly eggs were desceribed in report 1. The following result of experiments shows that old maggots are more resistant for hesting than younger ones or eggs.抄録全体を表示PDF形式でダウンロード (113K) -
佐藤 隆平, 菅浪 晋一郎1950 年 16 巻 1 号 p. 21-24
発行日: 1950/05/25
公開日: 2008/02/29
ジャーナル フリーEggs of “Ugui”, a species belonging to the genus Triborodon, were collected and artificially fertilized around the mouth of the River Shichinohe, on the coast of the Lake Kogawara in Aomori Prefecture, in June, 1947. Transported by train to the Onagawa Fisheries Laboratory of Tohoku University, the fertilized eggs have been kept in glass vessels with the capacity of 1 litre and used as materials for artificial culture. Experiments have drawn results as follows.
(1) The pre-larval fish, which had hatched out in the 7th to the 9th days after fertilization at 14-17°C., grew without food supply and reached about 11mm. length in 11-13 days.
(2) The post-larval fish, having almost absorbed their own yolks and grown up about 10mm. length, could be fed with artificial foods, fish-meal and egg-yolk of chicken, but such living organisms as Navicula sp., Monas sp., Moina rectirostris, Daphnia sp. and Simocephalus sp. were not suitable as their first food.
(3) After the post-larval fish had acquired some growth, they took zoo-plankton, especially water-flea Moina macrocopa, as well as the artificial food. Moina macrocopa was one of the most suitable foods for the fish in such a stage. Those fish can supply good stock in ponds and lakes.抄録全体を表示PDF形式でダウンロード (256K) -
廣瀬 弘幸1950 年 16 巻 1 号 p. 25-30
発行日: 1950/05/25
公開日: 2008/02/29
ジャーナル フリーThe author has observed phytoplanctonic algae collected in Abashiri Lake during the period of past several years. All the planctonic algae whose specific name were identified by the author are enumerated in the present report, containing those which have ever been published respectively by S. Takayasu and K. Tobishima, M. Higashi, K. Negoro, and S. Motoda and T. Ishida. Precise notes concerning those typical phytoplanctons belonging to the genus Aphanizomenon (Cyanophyceae) and Asterionella (Bacillariophyceae) are given, and the following two facts were revealed:-(1) both Aphanizomenon flos-aquae and its variety A. flos-aquae var. Klebahnii are encountered in the lake. (2) with respect to the genus Asterionella, the species which has ever been identified to be A. gracillima in Japan is presumably seperable into two species, namely one is A. gracillima proper and the other is A. zigzagostellata. The author could merely find a single species, A. zigzagostellata Elenkin from Abashiri Lake. Therefore, more throughgoing investigation upon the genus Asterionella became neccessary.
Institute of Botany, Faculty of Science, Kobe, University, Kobe.抄録全体を表示PDF形式でダウンロード (378K) -
辻野 勇, 久保田 尚志1950 年 16 巻 1 号 p. 31-34
発行日: 1950/05/25
公開日: 2008/02/29
ジャーナル フリーIt has already been known that synthetic polysaccharide sulfuric acid esters have a blood anticoagulant activity in vitro. They, however, cannot be employed clinically on account of their toxicity. We synthesed sulfuric acid esters of glycogen, chondroitin sulfate & alginic acid. Their S contents were 16.1%, 8.2% & 12.3% and showed the following anticoagulant activities in comparison with those of heparin, such as (heparin 1) alginic acid sulfate 1/2, glycogen sulfate 1/12 & chondroitin polysulfate 1/20. The lethal doses of alginic acid sulfate land chondroitin sulfate were both 10mg per 10g in mouse body weight.抄録全体を表示PDF形式でダウンロード (254K)
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