著者

磯田 好弘 西沢 幸雄 山口 茂彦 平野 二郎 山本 明彦 沼田 光弘

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.42, no.11, pp.923-928, 1993-11-20 (Released:2009-10-16)

参考文献数

16

被引用文献数

1 1

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Various kinds of free fatty acid were examined on their antitumor activity against ascites tumor cells, Survival days of mice after administrations of free fatty acid were observed. From these data I.L.S. (Increase of life-span) was culcurated and used as a parameter of Antitumor activity. Effective fatty acids against Sarcoma-180 were as follows : Pentadecanoic acid in saturated fatty acid series of carbon number 6 to 24, oleic acid in mono-unsaturated fatty acid series, and α-linolenic and docosahexaenoic acids in poly-unsaturated fatty acid series.The most effective fatty acid in our antitumor activity research is (hydroxy phenyl) stearic acid.The mechanism on antitumor activity of free fatty acid is not made clear sufficiently but it was suggested that disorder of membrane caused by fatty acids is responsible for their antitumor effect.

著者

湯木 悦二

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.20, no.5, pp.313-316, 1971-05-20 (Released:2009-11-10)

参考文献数

10

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The effect of the magnesium oxide adsorption on the removal of free fatty acid in the oil which was used for frying, was tested. This method was proposed by Hoovers in U.S. 3, 231, 390.The prevention of the increase of free fatty acid in the oil during deep fat frying is very important. This increase is mainly caused by the hydrolysis of fat and the rate of hydrolysis is proportional to the acid concentration. The effective method to prevent hydrolysis is, therefore, to inactivate the action of free fatty acid as is produced.Using the continuous water-spraying and heating system and the automatic test fryer, the effect of the magnesium oxide adsorption was tested (Table-4, Fig. -2). As a result, the following facts were recognized. The free fatty acid content in the oil has been maintained in low amount at the initial stage. However, the magnesium soap which was produced by the reaction of magnesium oxide with the free fatty acid, dissolved into the oil and accumulated gradually with increase of the frying time, and this soap promoted hydrolysis significantly. Therefore, the higher sensitivity of the oil to hydrolysis resulted in the higher content of free fatty acid as compared with that of the control test, at the latter stage.As mentioned above, this method is not practical.

著者

水島 洋泉 深沢 純一 鈴木 敏幸

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.44, no.8, pp.586-592, 1995-08-20 (Released:2009-10-16)

参考文献数

29

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The mechanism for the self-assembly of the lamellar structure of intercellular stratum corneum lipids (SCL) has been a subject of considerable interest. The present study was conducted for clarification of this point using a synthetic pseudo-ceramide (SLE). The phase behavior and the structural characteristics of SLE other major components of SCL, fatty acids, cholesterol and cholesteryl esters, were studied by differential scanning calorimetry (DSC) and X-ray analysis. Stable lamellar structures could be confirmed only in the mixed systems of SLE and long-chain saturated fatty acids (stearic acid and palmitic acid). Lipid mixtures whose saturated fatty acid had been replaced by oleic acid failed to form lamellar structures and crystals of SLE were found present within these mixtures. It thus follows that fatty acids, as well as ceramides are essential to the self organization of SCL and that stable bilayer formation depends considerably on fatty acid molecular structure.

著者

松村 輝男

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.18, no.Supplement, pp.36-40, 1969-11-25 (Released:2009-10-20)

参考文献数

5

著者

木村 修一

出版者

公益社団法人 日本油化学会

雑誌

油化学 (ISSN:0513398X)

巻号頁・発行日

vol.20, no.10, pp.670-677, 1971

被引用文献数

1

出版者

公益社団法人 日本油化学会

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.5, no.2, pp.115-126, 1956-03-15 (Released:2009-10-09)

著者

別府 正敏 菊川 清見

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.44, no.10, pp.738-750, 1995-10-20 (Released:2009-10-16)

参考文献数

110

被引用文献数

2 3

---

Erythrocytes undergo oxidative damage including membrane lipid peroxidation and protein oxidation during the aging process. Naturally occurring IgG autoantibody to band 3 glycoprotein of the erythrocyte membrane (anti band 3) binds to the aged erythrocytes. The IgG binding is a critical event in the removal of aged erythrocytes from the circulation since IgG-bound cells are destined to be phagocytosed by the macrophages in spleens.The selective recognition of the aged cells by the antibody occurs by the following successive mechanisms : 1) lipid peroxidation and/or SH oxidation of proteins in the membrane, 2) clustering of band 3 glycoprotein on the membrane, 3) anti-band 3 binding to the sialyl poly-N-acetyllactosaminyl saccharide chains of the clustered band 3. These events indicate that lipid peroxidation and protein oxidation are closely related to the erythrocyte aging and the mechanism of the aged cell removal from the circulation.

著者

渡辺 昭一郎

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.29, no.8, pp.536-542, 1980-08-20 (Released:2009-11-10)

参考文献数

58

被引用文献数

1

著者

山田 実

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.20, no.10, pp.716-725, 1971-10-20 (Released:2009-11-10)

参考文献数

64

著者

福田 清成 柴崎 芳夫 中原 弘雄

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.39, no.3, pp.156-165, 1990-03-20 (Released:2009-10-16)

参考文献数

64

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In LB films, acceleration or selectivity of chemical reactions and regulation of conformation or configuration of the products can be achieved, because mutual orientation and packing of the functional groups can be easily controlled. This review describes mainly polymerization reactions including both of condensation and addition, and chromic reactions such as cis-trans isomerization in the LB films. Polymers with specific structures can be obtained in the LB films and these are expected to improve the stabilization of functional LB films. Control of chromic reactions in the LB films are promising for the conversion of photoenergy, such as in optical memory.

著者

見城 一敏

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.15, no.6, pp.267-277, 1966-06-20 (Released:2009-10-20)

参考文献数

14

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Author studied the states of dissolution in the ternary system consisting of polyoxyethylene nonylphenyl ether different in the degree of ethylene oxide polymerization, essential oil different in polarity, and water. When such ternary system is heated starting from turbid heterogeneous phase, it turns into transparent homogeneous phase then reaches again claud point on further heating. Author obtained diagrams of dissolution states of the system by the measurement of transparent point and claud point and the plotted curves deviled the diagram into three regions; the first heterogeneous phase system above the claud point curve; the second homogeneous (solubilized) phase system; and the third heterogeneous phase system below the transparent point curve. From the diagram, minimum concentration of each surfactant required (required concentration) for the solubilization of each essential oil at any temperature was obtained, and it showed a smallest value in the system of the intermediate n (degree of polymerization of ethyleneoxide) which is the optimum solubilizer. n, HLB and the required concentration of the optimum solubilizer between 0 and 40 can be easily found from the diagram. Optimum value of HLB obtained increased with increase of the polarity of essential oil. Effect of ethanol addition to the ternary system was also discussed.

著者

奥村 統 向山 恒治

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.36, no.10, pp.754-760, 1987-10-20 (Released:2009-11-10)

参考文献数

45

著者

湯木 悦二 川口 正勝 奥田 幸康

出版者

公益社団法人 日本油化学会

雑誌

油化学 (ISSN:0513398X)

巻号頁・発行日

vol.20, no.9, pp.559-562, 1971

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The effect of the natural tocopherol mixture on the Fried Noodle was compared with that of butylated hydroxyanisole. (BHA) by using the test fryer which reduced to a scale of one-twentieth of the commercial apparatus at almost the same conditions as those of the commercial operation.The effect of the protection of fat surface from the air by means of hood method on the loss of antioxidant and on the fat deterioration was also examined.<BR>The following results were observed. Tocopherol, as was expected from the previous paper, showed a better thermostability and its content was kept in a constant level of about 80% during frying when the fat surface was protected from the air as shown in Fig.-2 (A). On the other hand, it was about 50% in the case of the use of BHA. The reason why BHA showed a considerably good thermostability like this might be due to the low frying temperature and the higher fat turnover rate in the case of the Fried Noodle.<BR>As shown in Fig.-2 (B) and (C), BHA rather maintained a higher level of the fat stability than that of tocopherol in the frying conditions. This is considered to be caused by the difference of efficiency of antioxidant, that is, BHA has stronger effectiveness than tocopherol as shown in Table-1. As shown in Fig.-2 (H), this tendency became more and more marked on the shelf-life of Fried Noodle.<BR>From the results of Fig.-2 (A), (B), (C), (E) and (H), it was recognized that the protection of fat surface from the air by the hood method was an effective method to prevent the loss of antioxidant and the fat deterioration.

著者

蜂屋 巌 古谷野 哲夫 佐藤 清隆

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.37, no.8, pp.613-617, 1988-08-20 (Released:2009-11-10)

参考文献数

12

被引用文献数

2 4

---

Changes in viscosity of cocoa butter and chocolate during crystallization processes were measured by a rotational viscometer which was newly equipped in the present study. This viscometer facilitates a computerized tempering with agitation of the sample, yielding a torque of sample. The tempering process was a simple cooling of melt (60°C) to several crystallization temperatures. It was confirmed that the torque was linearly proportional to viscosity values obtained by Brookfield type viscometer. The viscosity changed through three different stages : First, the constant viscosity was attained after the crystallization temperature was reached. Second, the viscosity gradually increased due to early nucleation and crystal growth of solid fats. Third, a sharp increase of viscosity was caused by accelerated crystallization. The amount of crystallized fats in chocolate during the industrial-used tempering machine (60-27-30°C) was estimated about 0.17%, based on the viscosity changes examined by the present method.

著者

木村 栄一 塩谷 光彦

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.43, no.11, pp.906-913, 1994-11-20 (Released:2009-10-16)

参考文献数

19

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A new breakthrough for zinc (II) enzyme models was achieved with the advent of macrocyclic polyamine zinc (II) complexes. These complexes serve as the best structural as well as functional model for the active centers of zinc (II) enzymes (e.g., carbonic anhydrase, alkaline phosphatase, and alcohol dehydrogenase) and have clearly answered mysteries surrounding the intrinsic properties of zinc (II) in the zinc (II) enzymes. The knowledge newly gained about the properties of zinc (II) has been developed into new supramolecular chemistry, where the zinc (II) enzyme model complexes can recognize thymine and its related derivatives among all the nucleobases in aqueous solution. Here new biochemical functions of the zinc complexes (i.e., inhibition of hybridization of polyribonucleic acids, inhibition of in vitro protein synthesis, inversion of DNA helicity, etc.) are also presented.

著者

関矢 静男 辻 和郎 山中 実

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.28, no.7, pp.497-500, 1979-07-20 (Released:2009-11-10)

参考文献数

6

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A rapid method is described for the separation and determination of nonionic substances in detergents by use of a centrifugal chromatograph. The sample was placed on the center of a circular alumina disk and eluted with 300 ml of a mixed solvent, ethyl acetate/methanol (1 : 1, vol/vol), rotating the disk at 400 rpm. By this method nonionic substances such as alkyl poly (oxyethylene) ether and N, N-bis (2-hydroxyethyl) alkanamide in commercial detergents and shampoos were separated quantitatively within 10 min without the interference from coexisting anionic surfactants. The analytical results agreed with those obtained by the column chromatography on alumina.

著者

太田 静行

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.32, no.5, pp.245-257, 1983-05-20 (Released:2009-11-13)

参考文献数

22

著者

玉手 英四郎 大竹 俊樹

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.16, no.7, pp.395-401, 1967-07-20 (Released:2009-10-20)

参考文献数

73

被引用文献数

1 2

著者

山根 厳美

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.7, no.5, pp.298-302, 1958-08-05 (Released:2009-10-09)

参考文献数

14

被引用文献数

3 3

著者

峰岸 裕 荒井 明彦

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.26, no.2, pp.85-90, 1977-02-20 (Released:2009-10-20)

参考文献数

28

被引用文献数

2 3