油化学
Online ISSN : 1884-2003
ISSN-L : 0513-398X
33 巻 , 7 号
選択された号の論文の11件中1~11を表示しています
  • 調子 康雄
    1984 年 33 巻 7 号 p. 411-419
    発行日: 1984/07/20
    公開日: 2009/11/13
    ジャーナル フリー
  • 八児 真一
    1984 年 33 巻 7 号 p. 420-425
    発行日: 1984/07/20
    公開日: 2009/11/13
    ジャーナル フリー
  • 鹿山 光, 平田 稔
    1984 年 33 巻 7 号 p. 426-434
    発行日: 1984/07/20
    公開日: 2009/11/13
    ジャーナル フリー
    がざみは湿重量%として体全体の1.6%の脂質を含有し, とくに肝すい臓は12.3%と高く, 筋肉で約1%である。これらの脂質は主としてトリグリセリド, リン脂質, 遊離脂肪酸とジアシルグリセリルエーテルから成る。かににおける脂肪酸代謝を検討するため, [1-14C] アセタート (200μCi) を腹こうに投与し, 5h後に凍結死させた。脂質を抽出後, 飽和, モノ不飽和及び多不飽和脂肪酸をアセトン溶液から低温分別結晶法により濃縮し, 硝酸銀薄層クロマト, 逆相カラムクロマト法により分離した。不飽和脂肪酸をオゾン分解するとともに, パルミチン酸, オレイン酸を水素添加して得たステアリン酸及びイコサペンタエン酸からのアラキジン酸については, それぞれカルボキシル炭素から段階的に減成した。その結果, かにはパルミチン酸のような飽和脂肪酸をde novo合成し, それを鎖長延長し, 不飽和化してオレイン酸のようなモノ不飽和脂肪酸とし, さらにリノレン酸のような外因性の脂肪酸を魚類でみられたと同じようにイコサペンタエン酸のような高度不飽和酸へ変換する。
  • 広瀬 裕子, 岩間 文男
    1984 年 33 巻 7 号 p. 435-438
    発行日: 1984/07/20
    公開日: 2009/11/13
    ジャーナル フリー
    Antioxidants comprise a major group of food additives. However, BHA and BHT as synthetic antioxidants are suspected of beeing toxic in character so that natural antioxidative compounds, particularly those from plant materials, should take the place of synthetic compounds.
    This paper reports the isolation, identification and estimation of a natural antioxidant in grape seed extracts. The natural antioxidant, III, obtained in crystalline form from the extracts with ethyl acetate of grape seeds by centrifugal chromatography, using Wakogel B-O as a packing material. Antioxidative activity was determined by AOM in lard. This antioxidant showed remarkable antioxidative activity toward lard and was more effective than dl-α-tocopherol, BHT and BHA. Its main components were identified by UV, IR, MS and 1H-NMR as (+) -catechin and (-) -epicatechin.
  • 田中 正康, 高瀬 和正, 石井 重吉, 伊藤 俊洋, 金子 弘
    1984 年 33 巻 7 号 p. 439-442
    発行日: 1984/07/20
    公開日: 2009/11/13
    ジャーナル フリー
    Methods for quantitatively estimating the composition of simple lipid and phospholipid mixtures were developed using alumina thin-layer chromatography-flame ionization detection systems.
    Simple lipid mixtures containing palmitic acid, cholesterol, tripalmitin and cholesterol palmitate, were separated on Chromarod A (alumina sintered rod) with double development to a distance of 6 and 10cm from the start, using benzene-ethylacetate (9 : 1) and n-hexane-benzene (9 : 1). A phospholipid mixture containing phosphatidylcholine, lysophosphatidylcholine, sphingomyeline, cardiolipin and phosphatidylethanolamine were separated on the rod employed with chloroform-methanol-water-15N ammonia solution-pyridine (65 : 27.5 : 4 : 2 : 2). Individual lipids separated on the rod were then automatically quantified by means of a hydrogen flame ionization detecter (Iatroscan).
    The relative responses of these lipids were found to be in proportion to the theoretical responses based on weight per cent. These responses converged with a maximum error of 510% (C.V.).
  • 田端 勇仁, 村田 友次
    1984 年 33 巻 7 号 p. 443-446
    発行日: 1984/07/20
    公開日: 2009/11/13
    ジャーナル フリー
    The physico-chemical properties of a series of monodispersed alkyl polyoxyethylene ethers were measured. The melting points of the samples increased in a zigzag manner with increasing alkyl chain length at a constant polyoxyethylene chain length, although the melting points of fatty alcohols increased linearly with increasing alkyl chain length.
    The refractive index increased with increasing polyoxyethylene chain length and alkyl chain length. The refractive index and hydroxyl value showed a linear relationships. The cloud point increased with increasing polarity (HLB, IOB, OH-V), but the cloud points of shorter alkyl chain samples were higher than those with longer chains at the same polarity.
  • 遠藤 泰志, 薄木 理一郎, 金田 尚志
    1984 年 33 巻 7 号 p. 447-448
    発行日: 1984/07/20
    公開日: 2009/11/13
    ジャーナル フリー
    フェオフィチンaを含むリノール酸メチルを光酸化させた場合, 一重項酸素酸化のときに生成する非共役系のモノヒドロペルオキシドが検出された。この光酸化は, β-カロテンやα-トコフェロールのような一重項酸素のクエンチャーによって阻害されることから, フェオフィチンが, 光存在下で一重項酸素酸化をひきおこすことを認めた。
  • 太田 静行, 日下 兵爾, 新堀 嘉津彦, 木村 丹二, 山本 光成
    1984 年 33 巻 7 号 p. 449-453
    発行日: 1984/07/20
    公開日: 2009/11/13
    ジャーナル フリー
    To elucidate the influence of a conveyer attached to an auto-fryer on the deterioration of frying oil, the folowing experiments were carried out.
    1. As a conveyer model, rotors were constructed to rotate slowly over the frying oil surface. A comparison was made of the degree of deterioration of soy bean oil heated for 8hrs at 180°C with and without the use of the rotors. Observation of the changes in viscosity, acid value and color of the oils showed that the rotors accelarated remarkably the deterioration of soybean oil. Coating of the rotors with Teflon or the use of net rotors in place of plate rotors significantly reduced the thermal deterioration of the soybean oil.
    2. The influence of the vessel materials (aluminium and iron) coated with and without Teflon on the deterioration of soybean oil heated at 180°C was investigated. Deterioration was found to be less for vessels coated with Teflon.
  • 伊東 祥太, 斎藤 功夫, 畑田 清隆, 生島 豊, 後藤 富雄, 浅野 隆
    1984 年 33 巻 7 号 p. 454-455
    発行日: 1984/07/20
    公開日: 2009/11/13
    ジャーナル フリー
    A convenient synthesis of Muscalure (cis-9-tricosene) (3), the sex pheromone of house fly (Musca domestics L.), is described. Methyl 3-oxohexanoate (1) was alkylated with 1-chloro-cis-9-octadecene (oleyl chloride). The product, without isolation, was demethoxycarbonylated to give cis-14-tricosen-4-one (2). The desired compound (3) could be obtained by the Huang-Minlon reduction of (2).
  • 渡辺 昭次, 藤田 力, 樋口 慶樹, 須賀 恭一
    1984 年 33 巻 7 号 p. 456-458
    発行日: 1984/07/20
    公開日: 2009/11/13
    ジャーナル フリー
    The reaction of spiro [4.5] decan-6-one (1) with vinylmagnesium chloride gave 6-vinylspiro [4.5] decan-6-ol (2). The Carroll reaction of (2) with ethyl acetoacetate produced 5- (spiro [4.5] decyliden-6-yl) -2-pentanone (3). 2- (Spiro [4.5] decyliden-6-yl) ethanal (4) and 5- (spiro [4.5] decyliden-6-yl) -3-penten-2-one (5) were prepared from (2). The reaction of (2) with 3-hydroxy-1-butynylmagnesium bromide gave 4- 6-hydroxyspiro [4.5] decan-6-yl-3-butyn-2-ol (6).
  • 1984 年 33 巻 7 号 p. 458
    発行日: 1984年
    公開日: 2009/11/13
    ジャーナル フリー
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