Journal of Japan Oil Chemists Society最新文献_第7页

Development and Cosmetic Application of Cross-linked Polysiloxane 交联聚硅氧烷的研制及化妆品应用

Journal of Japan Oil Chemists Society Pub Date : 2001-01-01 DOI: 10.5650/oleoscience.1.247

S. Kuribayashi

引用次数: 0

1. 2-ジチオラン環を持つ天然抗酸化物質, リポ酸の科学 2-带二硫烷环的天然抗氧化剂，硫辛酸的科学

Journal of Japan Oil Chemists Society Pub Date : 2001-01-01 DOI: 10.5650/OLEOSCIENCE.1.47

誠一松郷, 徹也小西

引用次数: 1

222nd ACS National Meeting に参加して参加222nd ACS National Meeting

Journal of Japan Oil Chemists Society Pub Date : 2001-01-01 DOI: 10.1021/cen-09426-meetings1

鷺坂将伸

引用次数: 10

New Aspects of Surfactant-free emulsion 无表面活性剂乳液的新进展

Journal of Japan Oil Chemists Society Pub Date : 2001-01-01 DOI: 10.5650/OLEOSCIENCE.1.33

T. Sakai, H. Sakai, K. Kamogawa, M. Abe

引用次数: 2

Production of 13C-Labeled Docosahexaenoic Acid by a Thraustochytrid 13c标记二十二碳六烯酸的Thraustochytrid生产

Journal of Japan Oil Chemists Society Pub Date : 2000-11-20 DOI: 10.5650/JOS1996.49.1437

Kazuo Watanabe, T. Nakahara, T. Yokochi, Shizuo Mohara, K. Yazawa

引用次数: 3

Molecular Orbital Study on Binding Ability of Tocopherols and Catechins to Three-membered Reactive Sites of Mutagens 生育酚和儿茶素与诱变剂三元活性位点结合能力的分子轨道研究

Journal of Japan Oil Chemists Society Pub Date : 2000-11-20 DOI: 10.5650/JOS1996.49.1423

Toshiya Okajima, T. Akiyama, S. Kawaguchi

{"title":"Molecular Orbital Study on Binding Ability of Tocopherols and Catechins to Three-membered Reactive Sites of Mutagens","authors":"Toshiya Okajima, T. Akiyama, S. Kawaguchi","doi":"10.5650/JOS1996.49.1423","DOIUrl":"https://doi.org/10.5650/JOS1996.49.1423","url":null,"abstract":"Molecular orbital study was conducted so as to clarify the reactivity of nucleophilic substitution between phenoxide anions of tocopherols (Vitamin E) and catechins and the three-membered oxirane ring (binding site to biomolecules) of some mutagens. All stationary points including transition state structures (TSs) were optimized with no geometrical constraint at the PM3 level and energies of all species including TSs were evaluated at the Becke3LYP/3-21G level based on PM3 geometry. The reactions of model compounds of three tocopherols (β-, γ-, and δ-tocopherol) and catechins with ethylene oxide were examined. The tocopherols and catechins were found to possess nucleophilic reactive sites to which electrophilic mutagens each having oxirane ring could bind.Activation energy (ΔE≠) for the rate-determining C-C bond forming step for electrophilic substitution of phenoxide anions of three tocopherol models with ethylene oxide was found to range in 43-53kJ/mol. Predicted reactivity followed the order βγ<δ-tocopherol. The most stable TS was that for the reaction of δ-tocopherol model and had the lowest ΔE≠ (+43.3kJ/mol), at which electrophilic reaction occurs at the C-7 position. In catechin models, TS whose O-5 phenoxide anion reacts with ethylene oxide at the C-8 position had the lowest ΔE≠ (+40.5kJ/mol). These considerably small ΔE≠ suggest tocopherols and catechins to be capable of directly capturing electrophilic mutagens having the reactive oxirane ring and eliminating their activities so as to bind to biomolecules.","PeriodicalId":16191,"journal":{"name":"Journal of Japan Oil Chemists Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2000-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90543053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis and Applications of Functional Materials Related to Oleochemistry 油脂化学相关功能材料的合成与应用

Journal of Japan Oil Chemists Society Pub Date : 2000-11-20 DOI: 10.5650/JOS1996.49.1369

T. Takeda

{"title":"Synthesis and Applications of Functional Materials Related to Oleochemistry","authors":"T. Takeda","doi":"10.5650/JOS1996.49.1369","DOIUrl":"https://doi.org/10.5650/JOS1996.49.1369","url":null,"abstract":"The paper is primarily based on the article that qualified for the 2000 Japan Oil Chemists' Society Award. Novel synthetic routes of functional materials and intermediates involving reactions of epoxides were established. Reactions of epoxides with halogen compounds gave insertion products of epoxide into carbon-halogen bonds. Reactions of epoxides with carbonyl compounds gave 1, 3-dioxolane compounds. Special surfactants containing chemically cleavable surfactants, ƒ¿, ƒÖ-type surfactants and others were developed. The major chemically cleavable surfactants each possessed a 1, 3-dioxolane ring as connecting group of hydrophobic moiety with the hydrophilic moiety. Chemically cleavable surfactants were useful as ecofriendly surfactants owing to lose surface activity subsequent to acid, base or ozone addition after usage and the resulting oily residue could be recovered. The surfactants were useful for producing of high purity polymer by emulsion polymerization. Properties of surfactant mixed system were studied. Sodium dodecylsufate (SDS) alkyl glucoside (AG) and SDS alkyl ethoxylate (AE) mixed systems showed greater dissociation of sodium ions of SDS than SDS alone. The SDS AG mixed system showed no molecular interaction in mixed micelles, while the SDS AE mixed system did so. Percent leakage of a liposome probe was found strongly dependent on composition of mixed surfactants.","PeriodicalId":16191,"journal":{"name":"Journal of Japan Oil Chemists Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2000-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87281971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Amount and Composition of Wax Esters in Salted and Dried Roe from Mullet of Australia 澳大利亚乌鱼子盐和干鱼子蜡酯的含量和组成

Journal of Japan Oil Chemists Society Pub Date : 2000-11-20 DOI: 10.5650/JOS1996.49.1401

Kenji Hayashi, H. Kishimura

引用次数: 4

N-3 Polyunsaturated Fatty Acids and Bone Metabolism N-3多不饱和脂肪酸与骨代谢

Journal of Japan Oil Chemists Society Pub Date : 2000-11-20 DOI: 10.5650/JOS1996.49.1391

H. Hibino, I. Morita

引用次数: 0

Properties of Some Biosurfactants and Their Applications 几种生物表面活性剂的性质及其应用

Journal of Japan Oil Chemists Society Pub Date : 2000-11-20 DOI: 10.5650/JOS1996.49.1343

M. Ueno

{"title":"Properties of Some Biosurfactants and Their Applications","authors":"M. Ueno","doi":"10.5650/JOS1996.49.1343","DOIUrl":"https://doi.org/10.5650/JOS1996.49.1343","url":null,"abstract":"Functional properties and applications of several biosurfactants such as bile acids (BA), lung surfactants (LS) and so on have been so far studied particularly in the boundary fields between colloids and surface chemistry and medical science. The main themes are as follows; (1) Studies on colloidal and surface properties of various bile salts.Changes of the shapes and structures of mixed micelles prepared by mixing a bile salt with various mole fractions in aqueous solutions of the nonionic surfactant with homogeneous ethylene oxide chain length (C10E8) were estimated for various mixed ratios of bile salts. These are itemized as follows;(a) CMCs, structures, aggregation numbers and hydrophobicities of micelles for single bile salt systems and for aqueous binary mixed systems between one of bile salts and C10E8.(b) Absorption of vitamine E (VE) solubilized in micellar solutions of various bile salts by a rat small intestine.(2) Studies on the functions and developements of LS. The mechanism of a synthetic lung surfactant including surfactant proteins named “TA” developed by Fujiwara et al., being more effective for respiratory distress syndrome (RDS), was evaluated by surface rheology as follows;(a) Surface rheological properties of proteolipids, surfactant protein (SP-B, SP-C, SP-BC) and their mixtures containing lecithin, palmitic acid (PA) and egg phosphatidyl glycerol (EggPG) and the efficiency as LS.(3) Studies on the fundamental properties of liposomes.(a) Evaluation of phase transition temperature (Tc) of lipid liposomes by using a tautomerism of α-benzoylacetoanilide (BAA) and effects of addition of cholesterol.(b) Influences of addition of ionic and nonionic surfactants on the membrane of lipid liposomes.(4) Solubilities of insoluble drugs into water.(a) Dissolution of calcium bilirubinate disk as a model of a gallstone by some solvents.(b) Dissolution of dicrofenac sodium by the complexes formed among hydrotropic substances in water.","PeriodicalId":16191,"journal":{"name":"Journal of Japan Oil Chemists Society","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2000-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84616156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0