Journal of Japan Oil Chemists' Society
Online ISSN : 1884-2003
ISSN-L : 0513-398X
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Volume 29, Issue 10
Displaying 1-11 of 11 articles from this issue
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  • Syntheses and Applications of Vitamin A, Surfactants, Terpenes, and Their Related Compounds
    Kyoichi SUGA
    1980 Volume 29 Issue 10 Pages 719-727
    Published: October 20, 1980
    Released on J-STAGE: November 10, 2009
    DOIhttps://doi.org/10.5650/jos1956.29.719
    JOURNAL FREE ACCESS
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  • Organic Builders
    Shuichi MATSUMURA
    1980 Volume 29 Issue 10 Pages 728-734
    Published: October 20, 1980
    Released on J-STAGE: November 10, 2009
    DOIhttps://doi.org/10.5650/jos1956.29.728
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  • Studies on the Acid-catalyzed Ring-opening Reaction of Small-membered Ring Compounds in Emulsion System. I.
    Reaction Products in the Heterogeneous Acidic Hydrolysis of cis-9, 10-Epoxyoctadecanoic Acid in the Presence of 5, 8-Diisopropyl-2-naphthalenesulfonic Acid
    Shunroku KANNO, Koji SAKAI, Ryohei YAHAGI, Nobuo OKAWA
    1980 Volume 29 Issue 10 Pages 735-742
    Published: October 20, 1980
    Released on J-STAGE: November 10, 2009
    DOIhttps://doi.org/10.5650/jos1956.29.735
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    cis-9, 10-Epoxyoctadecanoic acid was hydrolyzed with a diluted sulfuric acid in the presence of a small amount of a surface-active sulfonic acid [5, 8-diisopropyl-2-naphthalenesulfonic acid (HDNS)], and it was found that a considerably large amount of mono-HDNS esters of threo-9, 10-dihydroxyoctadecanoic acid were produced, besides threo-9, 10-dihydroxyoctadecanoic acid, well-known usually as a main reaction product in such acidic hydrolysis. Since HDNS was difficultly soluble in toluene, used as an oil phase in this reaction, under the reaction conditions, and moreover, threo-9, 10-dihydroxyoctadecanoic acid was found as a major reaction product of the similar reaction, carried out in a homogeneous reaction system applying dioxane as a solvent, it was considered that HDNS, used in the heterogeneous reaction, oriented and was locally concentrated on the oil-water interface, and consequently the monosulfonic acid esters of threo-9, 10-dihydroxyoctadecanoic acid, usually obtained in homogeneous reactions carried out in anhydrous organic solvents, were readily produced.
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  • Effect of Phosphatidyl Choline on the Hemolytic Activities of Bile Salts
    Mitsuyo OKAZAKI, Ichiro HARA, Takanori KOBAYASHI, Makoto HAYASHI
    1980 Volume 29 Issue 10 Pages 743-747
    Published: October 20, 1980
    Released on J-STAGE: November 10, 2009
    DOIhttps://doi.org/10.5650/jos1956.29.743
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    Hemolytic activities of the mixed micelle of phosphatidyl choline with either sodium cholate or sodium deoxycholate were investigated.
    Phosphatidyl choline showed a strong inhibitory effect on the hemolytic activity of both bile salts. It formed a mixed micelle with both bile salts, but its inhibitory activity was greater with sodium cholate than with sodium deoxycholate.
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  • Organic Builders. X.
    Physico-Chemical Properties of the Aqueous Solutions of Ether Polycarboxylate Builders (3)
    Yoshiro ABE, Shuichi MATSUMURA
    1980 Volume 29 Issue 10 Pages 748-754
    Published: October 20, 1980
    Released on J-STAGE: November 10, 2009
    DOIhttps://doi.org/10.5650/jos1956.29.748
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    The physico-chemical properties of the aqueous solutions of some of chelating-type ether polycarboxylates containing malonate groups and/or acetate groups were measured and compared with that of sodium tripolyphosphate (STPP). And the correlation between the building performances and those properties has been discussed.
    The detergency were tested on naturally soiled cotton patches and the detergency powers were evaluated by Scheffe's method in a detergent system formulating alkylbenzenesulfonate (LAS). Measurements were made on the surface tensions, the critical micelle concentrations, and the emulsifying capacities of the builder solutions with sodium dodecylbenzenesulfonate (DBS), The buffering and dispersing capacities for carbon black and manganese dioxide in the aqueous builder solutions, and the chelate stability constants of the builders against alkaline earth metals were determined.
    These results indicated that the washing efficiencies of the detergents containing malonate-type as well as acetate-type builders correlated well with calcium ion sequestration capacities, but did not correlate well with their dispersing capacities for manganese dioxide of the aqueous malonate-type builder solutions.
    Other physico-chemical properties of the builder solutions had no relation to their washing efficiencies.
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  • Synthesis of trans-2- and trans-3-C6C12 Alkenals (Pentanomidae and Coreidae)
    Masato NOMURA, Yoshihito FUJIHARA, Yoshiharu MATSUBARA
    1980 Volume 29 Issue 10 Pages 755-759
    Published: October 20, 1980
    Released on J-STAGE: November 10, 2009
    DOIhttps://doi.org/10.5650/jos1956.29.755
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    Trans-2- and trans-3-unsaturated aliphalic alcohols and aldehydes (carbon numbers are C6C12) which were known as protective substances secreted from Anthropoda were synthesized in good yields via condensation of corresponding aldehydes (C4C10) [1A] [5A] with malonic acid, followed by reduction with lithium aluminium hydride.
    Aldehydes (C4C10) [1A] [5A] were prepared from alcohols (C4C10) by catalytic dehydrogenation with copper and zinc under reduced pressure.
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  • Study on Castor Oil. I.
    Isolation of Glycerol Triricinoleate from Castor Oil
    Tsugio ISOBE, Hajime SEINO, Shoichiro WATANABE
    1980 Volume 29 Issue 10 Pages 760-763
    Published: October 20, 1980
    Released on J-STAGE: November 10, 2009
    DOIhttps://doi.org/10.5650/jos1956.29.760
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    Enzymatic hydrolysis is a useful method for obtaining fatty acids from fats and oils. It was reported that the enzymatic hydrolysis of castor oil could not be effected completely. The reason for this phenomenon was assumed to be the formation of estlides between ricinoleic acid molecules liberated from the castor oil. It was also observed by TLC that there were a number of substances other than estlides in the reaction mixture.
    The authors are trying to perform further examination of the mechanism of the enzymatic hydrolysis of castor oil. It is desirable to use pure glycerol triricinoleate for more detailed study on the hydrolysis mechanism. So, an effective isolation procedure of glycerol triricinoleate from castor oil was investigated. It was found that pure glycerol triricinoleate could be isolated readily in high yield by a repeated distribution of castor oil between polar and nonpolar solvents.
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  • Effect of Soybean Lecithin on the Thermal Oxidation of Tocopherols in Lard
    Convenient Method for Synthesis and Catalytic Action of Thiacrown Ethers and Alkyl Thiacrown Ethers
    Etsuji YUKI, Kyozo MORIMOTO, Yukihiro ISHIKAWA
    1980 Volume 29 Issue 10 Pages 764-766
    Published: October 20, 1980
    Released on J-STAGE: November 10, 2009
    DOIhttps://doi.org/10.5650/jos1956.29.764
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    Thermal oxidation of tocopherols in lard was effectively inhibited by the addition of commercial soybean lecithin (Table-1, Fig.-1). There was no difference among α-, γ- and δ-tocopherol in the degree of inter-action with soybean lecithin (Table-2). Glycerides synthesized from a fatty acid mixture of lard was very unstable to thermal oxidative deterioration as compared with the original lard, but was highly stable to autoxidation. The instability of the glycerides to thermal oxidation could not be recovered even by the addition of soybean lecithin or unsaponifiable matter from lard (Table-3).
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  • Erratum
    1980 Volume 29 Issue 10 Pages 766
    Published: 1980
    Released on J-STAGE: November 10, 2009
    DOIhttps://doi.org/10.5650/jos1956.29.10_766
    JOURNAL FREE ACCESS
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  • Surface Active Crown Ethers. III.
    Convenient Method for Synthesis and Catalytic Action of Thiacrown Ethers and Alkyl Thiacrown Ethers
    Seiichi INOKUMA, Nobumasa AOKI, Eiichi KAMEYAMA, Tsunehiko KUWAMURA
    1980 Volume 29 Issue 10 Pages 767-770
    Published: October 20, 1980
    Released on J-STAGE: November 10, 2009
    DOIhttps://doi.org/10.5650/jos1956.29.767
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    It has been found that monothiuronium salts derived from ω, ω'-dichloropoly (oxyethylene) and thiourea were treated with sodium hydroxide in ethyl alcohol to give monothiacrown ethers in much higher yield than those attained by the known method of thiacrown ether synthesis, Monothia-15-crown-5, -18-crown-6 and their homologs with high alkyl (C8C12) group were conveniently prepared in good yields with use of the new method.
    Catalytic action on the reduction of 2-octanone with saturated aqueous sodium borohydride was examined for these products. The catalytic efficiency increased with the increasing ring size and alkyl chain length of the macrocycle. The efficiency of decyl-monothia-18-crown-6 was found to be comparable to that of perhydrodibenzo-18-crown-6. However, these alkylthiacrown ethers showed no catalytic action on the substitution reaction of octyl bromide with aqueous potassium iodide.
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  • X-ray and Thermal Studies of n-Alkyl Bromides with Odd Carbon Numbers (C19C27)
    Naotake NAKAMURA, Takayuki TANAKA, Akira WATANABE
    1980 Volume 29 Issue 10 Pages 771
    Published: October 20, 1980
    Released on J-STAGE: November 10, 2009
    DOIhttps://doi.org/10.5650/jos1956.29.771
    JOURNAL FREE ACCESS
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