著者

早瀬 文孝

出版者

Japan Oil Chemists' Society

雑誌

日本油化学会誌 (ISSN:13418327)

巻号頁・発行日

vol.46, no.10, pp.1137-1145, 1997-10-20 (Released:2009-10-16)

参考文献数

45

被引用文献数

7 7

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メイラード反応は食品の加工, 貯蔵時の化学的成分変化の中で最も重要な反応の一つである。この反応は非酵素的に進行し, 土壌中や生体内においても進行する。メイラード反応は酸化的反応と非酸化的反応に類別できる。酸化的反応において, グルコースの自動酸化や酸化的糖化反応 (glycoxidation) によって後期段階反応生成物 (AGE) が生成する。その反応過程に活性酸素が生成する。非酸化的反応においては3-デオキシグルコソン (3DG) のようなデオキシオソンが生成し, AGEの生成へと反応は進行する。一方, AGEの一種でもあるメラノイジンはヒドロキシルラジカル, 過酸化水素, スーパーオキシドのような活性酸素を強力に消去する。この消去活性はメラノイジンの抗酸化性や脱変異原性発現機構の一つとして説明できうる。

著者

青山 敏明

出版者

Japan Oil Chemists' Society

雑誌

オレオサイエンス = / Japan oil chemists' society (ISSN:13458949)

巻号頁・発行日

vol.3, no.8, pp.23-30, 2003-08-01

参考文献数

65

被引用文献数

2

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中鎖脂肪酸は, 通常油脂中の長鎖脂肪酸と消化吸収性が大きく異なり, 肝臓に直接運ばれ, 素早く酸化されてエネルギー源となる。この結果, 食後の熱産生が高く, 食後の血中トリグリセリド濃度が上昇しない。また, 中鎖脂肪酸は通常の条件で安全と確認されている。最近, 中鎖脂肪酸トリアシルグリセロール (MCT) および中・長鎖トリアシルグリセロール (MLCT) の体脂肪蓄積抑制効果がヒトの長期摂取試験で示された。このMLCTは, 中鎖脂肪酸が比較的少量であるが体脂肪蓄積抑制に有効であり, 汎用食用油として有用である。

著者

Feng Jin Ji Wang Joe M. Regenstein Fengjun Wang

出版者

Japan Oil Chemists' Society

雑誌

Journal of Oleo Science (ISSN:13458957)

巻号頁・発行日

pp.ess17212, (Released:2018-06-07)

被引用文献数

11

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Volatile compounds and quality changes of bitter apricot (Armeniaca sibirica L.) kernel oil (AKO) with different roasting conditions were determined. Bitter apricot kernels were roasted at 120, 130, 140 and 150°C for 15 min. Unroasted bitter apricot kernel oil was used as the control. Quality indicators included color, acid value and peroxide value, fatty acids, total phenols and oxidative stability. Peroxide values of the tested oils were 0.46-0.82 meq/kg, acid values were 0.60-1.40 mg KOH/g, and total phenol contents were 54.1-71.5 µg GAE/g. Oleic acid was the major fatty acid, followed by linoleic, palmitic, stearic and palmitoleic acids. Roasting increased the oxidative stability of bitter AKO. Volatile compounds were tentatively identified and semi-quantified. Among the 53 volatiles identified, benzaldehyde and benzyl alcohol were the major components. These two aroma compounds increased significantly during roasting and contributed sweet and almond flavors. Pyrazines were also prevalent and significantly increased with roasting. Sensory evaluation showed that roasted, nutty, sweet and oily aromas increased as roasting temperature increased.Practical applications: Bitter apricot kernels cannot be consumed directly, thus it is potentially beneficial to find uses for them, especially in China where bitter apricot processing is a significant industry. Roasted bitter AKO with a pleasant aroma could be prepared and might find use as an edible oil. The roasting process gave the bitter AKO a pleasant flavor. This study provided preliminary information on production parameters and potential quality control parameters.

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

村上 千秋 高橋 次郎 新保 國弘 丸山 武紀 新谷 〓

出版者

Japan Oil Chemists' Society

雑誌

日本油化学会誌 (ISSN:13418327)

巻号頁・発行日

vol.46, no.4, pp.423-427,460, 1997-04-20 (Released:2009-10-16)

参考文献数

21

被引用文献数

1 1

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有機培養及び無機培養におけるクロレラの脂質について調べた。1) 中性脂質量は乾物量当たり2~3g/100gであった。これらには両培養方法ともワックスエステルが 80%, トリアシルグリセリンが20%含まれていた。2) リン脂質は有機培養では8.6g/100g, 無機培養では6.2g/100gであった。これらの組成 (PG, PC, PE, PI) は両培養とも類似していたが, 脂肪酸組成は著しく異なっていた。3) 糖脂質は両培養とも5.7g/100gであった。これらの組成 (MGDG, DGDG, SQDG) 及びその脂肪酸組成は両培養で異なった。4) C16 : 4及び C18 : 4 の両脂肪酸は糖脂質及び PG を除くリン脂質で検出されたが, トリアシルグリセリンには検出されなかった。5) C16 : 1のトランス酸は PG のみ含まれていた。その含有量は有機培養で1.6%, 無機培養で2.3%であった。

著者

Shin Terada Seiji Sekine Toshiaki Aoyama

出版者

Japan Oil Chemists' Society

雑誌

Journal of Oleo Science (ISSN:13458957)

巻号頁・発行日

vol.64, no.6, pp.683-688, 2015 (Released:2015-06-01)

参考文献数

20

被引用文献数

3 15

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We examined the effects of the dietary intake of medium- and long-chain triacylglycerol (MLCT) on hyperglycemia in diabetic ob/ob mice. Six-week-old male ob/ob mice were fed a diet containing longchain triacylglycerol (LCT) or MLCT for 3 wks. During the dietary treatment, we determined the plasma glucose and insulin concentrations in the fed state once a week. Whereas the body weights did not differ between the two groups, the total intra-abdominal fat mass was significantly higher in the MLCT group compared to the LCT group. The plasma glucose levels in the freely fed state gradually increased during the 3-wk dietary treatment in the LCT but not MLCT group, although the daily food intake did not differ between the two groups. In the fed state, the MLCT group’s plasma glucose was significantly lower and their insulin concentrations were significantly higher than those observed in the LCT group (p<0.01). Plasma glucose concentrations at the end of dietary treatment (3rd wk) were negatively correlated with plasma insulin concentrations (p<0.05) and tended to be inversely related to total intra-abdominal fat mass (p=0.08). These results suggest that the dietary intake of MLCT may delay the progression of hyperglycemia in ob/ob mice, possibly through the stimulation of glucose uptake in intra-abdominal fat tissue caused by enhanced insulin secretion.

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.

著者

高木 徹

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.16, no.8, pp.441-448, 1967-08-20 (Released:2009-10-20)

参考文献数

94

著者

Rana Shimizu Yoshimune Nonomura

出版者

Japan Oil Chemists' Society

雑誌

Journal of Oleo Science (ISSN:13458957)

巻号頁・発行日

pp.ess17152, (Released:2017-12-14)

被引用文献数

17

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We have developed an artificial skin that mimics the morphological and mechanical properties of human skin. The artificial skin comprises a polyurethane block possessing a microscopically rough surface. We evaluated the tactile sensations when skin-care cream was applied to the artificial skin. Many subjects perceived smooth, moist, and soft feels during the application process. Cluster analysis showed that these characteristic tactile feels are similar to those when skin-care cream is applied to real human skin. Contact angle analysis showed that an oil droplet spread smoothly on the artificial skin surface, which occurred because there were many grooves several hundred micrometers in width on the skin surface. In addition, when the skin-care cream was applied, the change in frictional force during the dynamic friction process increased. These wetting and frictional properties are important factors controlling the similarity of artificial skin to real human skin.

出版者

Japan Oil Chemists' Society

雑誌

Journal of Oleo Science (ISSN:13473352)

巻号頁・発行日

vol.66, no.9, pp.1061-1072, 2017 (Released:2017-09-01)

被引用文献数

26

著者

深澤 透 堤 崇史 東海林 茂 荏原 紘 丸山 武紀 新谷 〓

出版者

Japan Oil Chemists' Society

雑誌

日本油化学会誌 (ISSN:13418327)

巻号頁・発行日

vol.48, no.3, pp.247-251,261, 1999-03-20 (Released:2009-11-10)

参考文献数

11

被引用文献数

4 18

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5種類の有機リン系農薬 (ジクロルボス, パラチオンメチル, マラチオン, クロルピリホス及びクロルフェンビンホス) を大豆油に添加し, 脱ガム, 脱酸, 脱色及び脱臭工程を行った後の精製油中の農薬残留量を測定した。得られた結果は次のとおりである。 (1) 脱ガム処理では原油中の各リン系農薬はわずかに減少した。 (2) 脱酸処理では脱ガム油中のジクロルボスは明らかに減少したが, 他の農薬は約80%以上残存した。 (3) 脱色処理では吸着剤による脱酸油中のジクロルボス及びクロルフェンビンホスの減少率はそれぞれ約70%及び60%であった。一方マラチオン及びクロルピリホスの減少率はそれぞれ約30%及び5%であった。パラチオンメチルは活性炭を含む吸着剤を用いると極端に減少した。 (4) 260℃の脱臭処理により全農薬が完全に除去された。 (5) 原油中のリン系農薬 (ジクロルボス, パラチオンメチル, マラチオン, クロルピリホス及びクロルフェンビンホス) は一般の精製処理により完全に除去されることを確認した。

著者

藤原 康雄 竹園 哲也 京野 三郎 阪柳 定男 山里 一英 飯塚 広

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.17, no.7, pp.396-399, 1968-07-20 (Released:2010-02-12)

参考文献数

5

被引用文献数

1 2

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Degree of alkyl chain branching of various commercially available detergent alkylates, including straight chain type, branched chain type and mixture thereof, was studied by means of high-resolution nuclear maenetic resonance. and an explicit correlation between alkyl chain branching ofdetergent alkylates and biodegradability of their sulf onates was obtained.The degree of alkyl chain branching in detergent alkylates is expressed by a parameter HCH3-6 ΣH-5, which is obtained by a combination of NMR and gaschromatography, where HCH3 and Σ H - 5 denote the number of methyl hydrogens and the total number of hydrogens in the alkyl chain, respectively. A plot of this parameter for the alkyl chain branching of detergent alkylates against biodegradability of their sulfonates was found to be almost linear as in Fig.-3. Use of Hω, which denotes the number of total methyl hydrogens in the alkyl chain, instead of HCH3 in the parameter leads to a lack of the linearlity of the plot of the alkyl chain branching against the biodegradability of sulf onates as in Fig.-4. Whereas, biodegradability of alkylbenzene sulfonates can be more rapidly predicted, since Hω, can be derived only from NMR spectra of hydrogens in the alkyl chain in detergent alkylates.

著者

Yoshinori Asakawa Kenichi Tomiyama Kazutoshi Sakurai Yukihiro Kawakami Yoshihiro Yaguchi

出版者

Japan Oil Chemists' Society

雑誌

Journal of Oleo Science (ISSN:13458957)

巻号頁・発行日

pp.ess17049, (Released:2017-07-12)

被引用文献数

4 13

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The volatile compounds obtained from the different organs of Houttuynia cordata (Saururaceae) and Litsea cubeba (Lauraceae) were analyzed by Gas Chromatography/Mass Spectrometry (GC/MS), Headspace Solid Phase Micro Extraction-Gas Chromatography/Mass Spectrometry (HS-SPME-GC/MS), and GC/olfactometry (GC/O). The major component of all parts of H. cordata is assigned as 4-tridecanone. Each organ produces myrcene as the major monoterpenoid. The major monoterpene in the rhizomes and roots was β-pinene instead of myrcene. 1-Decanal which was responsible for the unpleasant odor of this plant, was the predominant polyketide in both leaves and stems. The presence of 1-decanal was very poor in flowers, stem collected in summer, rhizomes, and roots. GC/MS analyses were very simple in case of the crude extracts of flowers. The content of sesquiterpenoids was extremely poor. (8Z)-Heptadecene, geranial, and neral were detected as the major components in Litsea cubeba. Odor-contributing components by GC/O analysis of the ether extract of the fresh flowers of L. cubeba were neral and geranial which played an important role in sweet-lemon fragrance of the flowers. The role of a high content of (8Z)-heptadecene was still unknown but it might play a significant role in the dispersion of the volatile monoterpene hydrocarbons and aldehydes. The flower volatiles of the Japanese L. cubeba were chemically quite different from those of the Chinese same species.

著者

若菜 章 広川 隆一 藤田 稔 熊沢 元春

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.20, no.4, pp.242-245, 1971

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Pour point reversions of various lubricating oils containing one of three different type pour point depressants (naphthalene-chlorinated paraffin condensation product, phenol-chlorinated paraffin condensation product and polyalkylmethacrylate) were measured by sudden cooling-heating cycle method and Federal test method.<BR>In the former test any pour point reversion was not recognized, but in the latter test a 2.57.5°C range of the pour point reversions was observed in all cases.<BR>Polyalkylmethacrylate gave the most effective pour point depressions and the most stable pour point reversions among the additives.

著者

中沢 君敏 島田 哲夫 梅沢 貢

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.5, no.2, pp.89-93, 1956-03-15 (Released:2010-01-27)

参考文献数

7

著者

戸谷 永生 渡辺 晃 大場 健吉

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.36, no.5, pp.328-331, 1987

被引用文献数

1 16

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r-リノレン酸やイコサペンタエン酸のような高度不飽和脂肪酸は, 現在, 微生物を用いて大量に合成されるが, アラキドン酸の生産法は低収率のため, まだ検討の余地があると考えられる。アラキドン酸含有脂質を効率よく得るために, <I>Martierella alpina</I>をポテトペースト・デキストロース培地上で培養する際の詳細な条件を, 培地中のデキストロース濃度, 微量金属の添加, 培地層厚, pHの点から検討した。その結果, 菌糸と菌床を6%のデキストロースとCaCl<SUB>2</SUB>・2H<SUB>2</SUB>O 750mg/kg培地を含む厚さ2mmの培地上で, 20℃20d間培養する条件を選定した。乾燥菌体よりそれらの脂質を抽出し脂肪酸分析したところ, アラキドン酸の収量は13.1g/kg培地となった。

著者

若菜 章 広川 隆一 藤田 稔 熊沢 元春

出版者

Japan Oil Chemists' Society

雑誌

油化学 (ISSN:18842003)

巻号頁・発行日

vol.20, no.6, pp.352-356, 1971

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Authors prepared three lubricating base oils having different pour points (0°, -5°, -10°C) by dewaxing of solvent refined waxy raffinate, and then three kinds of representative commercial pour point depressants (naphthalene-chlorinated paraffin condensation product, phenol-chlorinated paraffin condensation product and polyalkylmethacrylate) were added to them in the concentration range of 0.10.5wt%. Thereby the authors measured the ordinary pour points, Federal test method (cycle C) pour points and observed the pour point reversions.<BR>Variance analysis of experimental values showed that Federal test method pour points depended upon the dewaxing temperatures and kind of additives but not affected by the quantity of additives, while the pour point reversions were influenced by these three factors.<BR>Generally, pour point reversions were higher for the samples prepared from base oils of higher pour point.