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1.
Gelation Properties of Ovalbumin as Affected by Fatty Acid Salts 总被引:2,自引:0,他引:2
NAOKO YUNO-OHTA HIROKO TORYU TAKAHIKO HIGASA HIDEO MAEDA MITSUKO OKADA HIROYUKI OHTA 《Journal of food science》1996,61(5):906-910
The physicochemical properties of heat-induced ovalbumin (OVA) gels containing fatty acid salts (FAS) were investigated. Water-holding ability and transparency markedly increased in the presence of sodium caprate or sodium laurate. At 9% of the protein concentration transparent and hard gels formed; at 7%, transparent and soft gels formed. Scanning electron microscopy showed that the transparent gels had a more homogeneous structure than turbid gels without FAS. Differential scanning calorimetry indicated that denaturation temperature of OVA was decreased and the peaks became broader after addition of FAS. 相似文献
2.
TSUGIO HAMADA YOSHIHISA OHZONO TADAHIRO AKUNE NOBUYOSHI SAKAMOTO 《Journal of Materials Science》1997,32(13):3469-3473
The critical current density, Jc, in fluorine-doped YBa2Cu3Ox bulk superconductors has been measured at several temperatures. The measured Jc value is 108 A m-2 at 77 K and 0.5 T. A sample with a larger critical current density can be produced by the addition of a small amount of platinum during the sintering process. The added platinum has the effect of evenly distributing Y2BaCuO5 particles and voids in the matrix in comparison with the undoped sample. These distributions of Y2BaCuO5 particles and voids are reflected in an increase in the critical current density. However, these distributions are not directly related to the observed peak effect in the critical current density. If the fluorine-doped YBa2Cu3Ox superconductor consists of the matrix and a phase with a Ginzburg–Landau parameter, that is slightly different from that of the matrix, then the occurrence of the peak effect can be explained. 相似文献
3.
When autoxidized chicken fat and unsaturated fatty acids were subjected to thiobarbituric acid (TBA) test in trichloracetic acid, all samples revealed two absorption maxima at 532 and 455 nm. Rate of increase in the TBA-reactive substances (TBARS) at 532 nm was different from that in the TBARS at 455 nm. It was suggested that there were several kinds of TBARS in the autoxidized samples: the TBARS at 532 mn which were unstable in the autoxidation process and slowly liberated malonaldehyde; the TBARS at 532 nm which liberated malonaldehyde rapidly; and the TBARS at 455 nm which liberated other aldehydes unstable after reaction with TBA. 相似文献
4.
A. BELÉIA S.H. PRUDENCIO-FERREIRA F. YAMASHITA T.M. SAKAMOTO L. ITO 《Journal of texture studies》2004,35(5):542-553
Two cassava varieties, at three harvesting ages, 6, 12 and 24 months, were analyzed for sensory flavor and texture development. Maximum shear force, Texture Profile Analysis (TPA) and water absorption during cooking were determined at various sampling times. Changes during cooking were described by pseudo‐zero order models for water absorption, flavor and texture development for the fast cooking samples. The 24‐month‐old roots had higher variability and never reached optimum texture or flavor development. Significant pseudo first order models could represent hardness, cohesiveness and chewiness of the TPA, while springiness and adhesiveness varied in a non‐linear fashion. Maximum shear force was 111 N for raw samples and 8.1 N for samples that cooked in less than 25 min. Samples that required longer cook time had on the average a maximum shear force of 19 N. 相似文献
5.
日本是一个地震多发的国家,而特殊的地形又决定了水坝在其经济社会发展中具有重要的地位,因此水坝的安全管理和地震安全评价就成为一个至关重要的方面. 相似文献
6.
Hiroyuki TOBARI Masaki TANIGUCHI Mieko KASHIWAGI Masayuki DAIRAKU Naotaka UMEDA Haruhiko YAMANAKA Kazuki TSUCHIDA Jumpei TAKEMOTO Kazuhiro WATANABE Takashi INOUE Keishi SAKAMOTO 《等离子体科学和技术》2013,15(2):179-183
Vacuum insulation of 1 MV is a common issue for the HV bushing and the accel- erator for the ITER neutral beam injector (NBI). The HV bushing as an insulating feedthrough has a five-stage structure and each stage consists of double-layered insulators. To sustain 1 MV in vacuum, reduction of electric field at several triple points existing around the double-layered insulators is a critical issue. To reduce electric field simultaneously at these points, three types of stress ring have been developed. In a voltage holding test of a full-scale mockup equipped with these stress rings, 120% of rated voltage was sustained and the voltage holding capability required in ITER was verified. In the MeV accelerator, whose target is the acceleration of a H ion beam of 1 MeV, 200 A/m 2 , the gap between the grid support was extended to suppress breakdowns triggered by electric field concentration at the edge and corner of the grid support. This modi- fication improved the voltage holding capability in vacuum, and the MeV accelerator succeeded in sustaining 1 MV stably. Furthermore, it appeared that the H ions beam was deflected and a part of the beam was intercepted at the acceleration grid. This causes high heat load on the grids and breakdowns during beam acceleration. To suppress the direct interception, a new grid was designed with proper aperture displacement based on a three dimensional beam trajectory analysis. As a result, 980 keV, 185 A/m 2 H ion beam acceleration has been demonstrated, which is close to the ITER requirement. 相似文献
7.
K. HANADA H. ZUSHI H. IDEI K. NAKAMURA M. ISHIGURO S. TASHIMA E. I. KALINNIKOVA M. SAKAMOTO M. HASEGAWA A. FUJISAWA A. HIGASHIJIMA S. KAWASAKI H. NAKASHIMA H. LIU O. MITARAI T. MAEKAWA 《等离子体科学和技术》2011,13(3):307-311
Both start-up and sustainment of plasma were successfully achieved by fully non-inductive current drive using microwave with a frequency of 8.2 GHz. Plasmas current of 15 kA was implemented for 1 s. Magnetic surface reconstruction exhibited a plasma shape with an aspect ratio of below 1.5. The plasma current was dependent significantly on the launchen microwave power and vertical magnetic field, whiile not affected by the mode of launched wave and the toroidal refractive index. Hard X-ray (HXR) emitted from energetic electrons accelerated by the microwave was observed, and the discharge with a plasma current over 4 kA followed the same trend as the number of photons of 10 to 12 keV. This suggests that the plasma current may be driven by energetic electrons. Based on the experimental conditions, alternative explanations of how the plasma current could be driven are discussed. 相似文献
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9.
HIROKO SAKAMOTO YOSHIYUKI KUMAZAWA HIDEO KAWAJIRI MASAO MOTOKI 《Journal of food science》1995,60(2):416-420
Quantitative analysis of ε-(γ-glutamyl)lysine crosslink in 127 foods was achieved with a, preliminary separation by reverse phase-HPLC before o-phthalaldehyde derivatization to remove interfering peaks. ε-(γ-Glutamyl)lysine was detected in 96 foods and its contents ranged from 0.2 to 135 μmol/lOOg protein. High levels were found in fish paste products, processed fish, shellfish, meats and soybeans, and raw poultry organs. For fish and meats, the level of ε-(γ-glutamyl)lysine in processed foods and fish paste was relatively higher than that in raw materials. The improved procedure could be applied for screening materials with transglutaminase activities. 相似文献
10.
Electromagnetic transient (EMT) simulations of relatively large power systems have become quite common, for instance, in the case where simulations of HVDC converters are carried out with large ac power systems connected to the converters. Thus, the increase in computation time is a serious concern. To reduce computation time, this paper proposes a method to reduce computational demand of a remote power system which is located far from the source of a transient event to be simulated. In the proposed method, the remote power system, which is supposed to be represented by a three‐phase EMT‐based model, is reduced to a single‐phase phasor‐based model, and the size of the circuit to be simulated is thus reduced and the dynamics calculations of inductors and capacitors included in the remote power system are neglected. The calculation algorithm of generator models included in the remote power system is also simplified. The proposed method has been applied to EMT simulations of the WEST 10 benchmark power system prepared by the IEEJ, and it has been shown that the computation time is remarkably reduced without significant loss of accuracy if the portion assumed to be the remote power system is sufficiently far from the source of a transient event. 相似文献