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

---

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

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

---

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

---

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

著者

有島 俊治 鷺 信雄 青山 敏明 森 弘之

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.902-910, 1995-10-20 (Released:2010-01-29)

参考文献数

41

---

Triacylglycerols have specific properties which are useful for processing and/or modification of food systems according to their polymorphism, hydrophobic/hydrophilic balance, digestibility, and so on. These phenomena are mainly governed by the structure. Interfacial properties of 3-butyryl-1, 2-dipalmitoylglycerol at O/W emulsion, specific anti-bloom effect of 2-oleoy1-1, 3 dibehenylglycerol and restriction of absorption for 2-stearoyl-1, 3-dihexanoylglycerol are good examples. In the present study, we intend to summarize the relation between the structure and their specific properties.

著者

山本 子朗 吉富 和彦

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.19, no.8, pp.826-834, 1970-08-20 (Released:2009-10-20)

参考文献数

67

著者

三浦 太裕

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.42, no.10, pp.762-767, 1993-10-20 (Released:2009-10-16)

参考文献数

27

被引用文献数

2 7

---

Foaming profile differs from one application to others due to the many variables relating to the foaming phenomena such as chemicals in the system, physical and mechnical conditions. Therefore, discussing defoaming or antifoaming exhibits much more complexity than the simple act of foaming. Due to the sheer complexity concerned, the actual technology seems to precede scientific understanding.In a wide range of industries, silicone antifoams are the most effective antifoams in both aqueous surfactant systems and nonaqueous systems. The efficiency can be explained by the surface chemical characteristics of the silicone polymer, which are derived from its unique structure such as backbone flexibility and low intermolecular forces, especially for polydimethylsiloxane.In this paper, defoaming by polysiloxane polymers is explained by the surface chemical nature of the polymer. As well, in aqueous systems, enhanced defoaming by compounding hydrophobic silica is explained by dewetting mechanisms based on previous theories.

著者

鹿山 光 堀井 郁夫 池田 康行

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.23, no.5, pp.290-295, 1974-05-20 (Released:2009-11-10)

参考文献数

35

被引用文献数

6 9

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It had been found that some particular fish of several different families contain the wax esters as their major lipid type. The interest in deep sea organisms and advancing survey techniques have permitted to extend the occurrence of the wax esters in their lipids. In the fish there is a characteristic pattern in the presence of waxesters in the tissue lipids; namely, the wax esters are the major lipid, type in the muscle but are present trace in its roe, while this pattern is reversed in some fish.As the representative example of the latter, the mullets caught off coast of Mokuzu, Sukumocity, Kochi-prefecture, were collected and analyzed to understand the properties of ovary and other tissue lipids and thereby, to get some informations on the formation of wax esters during the process of maturing.From the biological measurement of mullet, the maturity of roe can be well expressed by the gonad index (gonad weight/body weight ×100, G.I.). It was further found that there is a relation between the gonad index and the wax ester content in roe lipids. Upon measurement of eleven gonads with different gonad indices from 0.28 to 17.65, the wax ester contents in roe lipids varied from 4.6% to 65.4%. This relation was expressed by the following empirical formula, y=62.6 (1-e-x/1.78), where x is the gonad index and y is the corresponding wax ester content in roe lipids.The wax esters of mullet roe lipids consist mainly of C26 to C40 with even chain-lengths. The major esters are C32 and C34, and the sum of both acids exceeds 70% of total, and a little amounts of odd numbered esters exist. The acid moiety of wax esters contains over 30% of C16 : 1 and C18 : 1 as main acids, respectively, while the alcohol moiety consists of C16 : 0 dominantly, as much as 61%. The fatty acid composition of triglycerides is similar to those of the free fatty acids, and the composition of free alcohols rather resembles those of the alcohol moiety of wax esters.Composition of various tissue lipids obtained from the immature (G.I. 0.28) was contrasted with that of mature mullets (G.I. 17.65). In the former there were no particular differences among the various tissue lipids but a small amounts of wax esters were detected in the lipids of liver, intestine contents etc. as well as ovary, while from the latter the wax esters more than 60% were found only in the lipids of ovary. There were no significant differences in other tissue lipids of both the mature and immature mullets.

著者

渡辺 昭次 藤田 力 須賀 恭一 阿部 晴彦 鶴田 治樹

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.27, no.12, pp.863-865, 1978-12-20 (Released:2009-11-10)

参考文献数

3

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Unsaturated nitriles were synthesized in good yields from 6-methyl-5-hepten-2-one and active methylene compounds containing nitrile group. From methylheptenone and malononitrile, 2-cyano-3, 7-dimethyl-2, 7-octadienenitrile was obtained in 91% yield. The unsaturated nitriles were alkylated at the 3-position by various Grignard reagents. Furthermore, reduction and hydrolysis of these unsaturated nitriles were examined.

著者

真鍋 敬 奥山 典生

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.26, no.10, pp.578-587, 1977-10-20 (Released:2009-10-20)

参考文献数

52

被引用文献数

3 2

著者

須賀 恭一 渡辺 昭次 藤田 力 稲葉 昭彦

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.26, no.8, pp.479-480, 1977-08-20 (Released:2009-10-20)

参考文献数

10

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Various 1, 4-diketones were prepared from carboxylic acids via two steps : Grignard reaction with vinylmagnesium chloride and oxidation with Jones reagent catalysed by mercuric propionate. For example, 2, 5-undecanedione was prepared from heptanoic acid via 1-undecen-5-one.

著者

阿部 芳郎 松村 秀一 真子 義邦 坂田 英昭 三浦 健司 酒井 要

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.34, no.6, pp.456-466, 1985

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Poly [(sodium acrylate) -<I>co</I>- (vinyl alcohol)] P (A-VA), poly [(sodium acrylate) -<I>co</I>- (methyl vinyl ether)] P (A-MVE), polyL (sodium 2-hydroxyacrylate) -<I>co</I>- (sodium acrylate) P (HA-A), poly [(disodium maleate) -<I>alt</I>- (vinyl alcohol) P (Ma-VA), poly (disodium fumarate) -<I>alt</I>- (vinyl alcohol)] P (F-VA) were prepared, and their building performances in detergents were examined. Their sequestering power for Ca<SUP>2+</SUP> and dispersing power MnO<SUB>2</SUB> were determined and compared with the corresponding properties of sodium tripolyphosphate (STPP) and disodium 3-oxapentandioate (ODA). The biodegradability of the oligomers was also studied under aerobic conditions.<BR>These oligomers showed better detergency building performances than those of ODA, and some of them were superior to those of STPP. Oligomeric P (A-VA) prepared by UV polymerization showed the best building performances in detergent systems and biodegradability tested in this report. The introduction of hydroxyl groups and ether groups to poly (sodium acrylate) promoted their detergency power and biodegradability.