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Rocío Fernández‐Vázquez Carla M. Stinco Dolores Hernanz Francisco J. Heredia Isabel M. Vicario 《International Journal of Food Science & Technology》2013,48(9):1861-1867
This study was aimed to analyse the impact of the debittering process (DP) in the overall sensory properties of orange juice (OJ) (Citrus sinensis L. Var. Salustiana). The fresh industrial squeezed orange juice (FOJ) and the corresponding OJ after the DP (DOJ) were taken. No significant differences were found in acidity, pH and total soluble solids. Colour was evaluated by image analysis (DigiEye System). Hue and lightness were lower (more reddish and darker) after debittering (P < 0.001). Odour profile (limonene, α‐pinene, ethyl butanoate, octanal, linalool, citral and terpineol) decreased significantly (from 16% to 61% on average) as well as total phenolic compounds measured by Folin–Ciocalteu (P < 0.05). The influence of the debittering on the perceived colour, smell and taste was evaluated by paired comparison tests. The naïve panellists found significant differences not only in taste but also in colour and aroma between FOJ and DOJ; however, preference was not clear. 相似文献
53.
Vicente P. Guerrero-Bote Rocío Gómez-Crisóstomo Luz María Romo-Fernández Félix de Moya-Anegón 《Scientometrics》2009,81(1):225-238
Though there are many and diverse opinions as to the order in which the authors appear in research papers, the most accepted
is the one which gives more responsibility to the first and last author. In this work, a study is carried out of the order
in which the authors appear in research papers, in which at least one author affiliated to the University of Extremadura (Spain)
has collaborated in the 1990–2005 period. The objective is to determine the difference in the position of men and women, and
the resulting responsibility and visibility of female authors as opposed to male authors. In the University of Extremadura
these positions are principally occupied by men, since throughout the period studied, no more than 20% of the papers have
women either in the first or last position, while the percentage obtained by men is around 50%, the remaining percentage being
occupied by authors not belonging at present to the Uex. Nevertheless, the women of the University of Extremadura have both
a higher percentage than expected and a positive evolution in the more relevant positions in recent years. 相似文献
54.
Results are presented from a laboratory investigation of a continuous discharge gravity current moving down an inclined plane into a linearly stratified fluid; the density of the inflow decreasing linearly with time, initially larger and finally smaller than the bottom ambient density. The inflowing water was observed to follow both underflowing and intrusive flow regimes. Hence, during the time in which the inflow was denser than the water in the stratified reservoir, an underflow was observed to descend down the sloping bottom with a speed that was consistent with that given by the theory for a buoyancy-conserving gravity current on gentle slopes. However, the continuous decrease of the density at the source shortly lead to an unstable density distribution within the initial underflow, which then collapsed into an intrusion that traveled as a horizontal gravity intrusion. Scaling arguments were used to identify both the position and time to the breakup of the underflow. To the end of the experiment, multiple intrusions were established successively at different depths in between the initial underflow and the surface buoyant plume. 相似文献
55.
Comments on the special issue entitled "Intelligence and lifelong learning" (American Psychologist, Vol 52, Oct 1997, 1029–1139). The author contends that there is no reference to how intelligence contributes to successful aging. The role of intelligence and education in aging is discussed. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
56.
Vicente P. Guerrero-Bote Felipe Zapico-Alonso María Eugenia Espinosa-Calvo Rocío Gómez-Crisóstomo Félix de Moya-Anegón 《Scientometrics》2007,71(3):423-441
The capacity to attract citations from other disciplines — or knowledge export — has always been taken into account in evaluating
the quality of scientific papers or journals. Some of the JCR’s (ISI’s Journal Citation Report) Subject Categories have a greater exporting character than others because they are less isolated. This influences the rank/JIF
(ISI’s Journal Impact Factor) distribution of the category. While all the categories fit a negative power law fairly well,
those with a greater External JIF give distributions with a more sharply defined peak and a longer tail — something like an
iceberg. One also observes a major relationship between the rates of export and import of knowledge. 相似文献
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A new Pavlovian procedure used fluid-elicited throat-movement responses of the pigeon (N=66) to study the effects on conditioning of the temporal relation of the conditioned stimulus (CS) to the unconditioned stimulus-unconditioned response (US-UR). Because the throat-movement response has a substantial latency and duration, the relation of the CS to the US and UR could be independently evaluated. Four experiments indicated that, operationally, the relation of the CS to the UR--not to the US--is critical for conditioning in this preparation. The conventional emphasis on CS-US relations is based on procedures that confound the occurrence of the US with the UR and that foster generalization decrement between training and testing. The authors indicate how several conditioning phenomena may be reinterpreted in terms of CS-UR relations. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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Ángela Rocío Romero Bernal Cora Marcela Reynoso Leticia Elvira Broggi Silvia Liliana Resnik 《Food Additives and Contaminants: Part B: Surveillance Communications》2019,12(1):24-30
Alternaria species have been reported to infect a wide variety of vegetables, fruits, and cereal crops. Wheat is one of the most consumed cereal worldwide. A sensitive HPLC-DAD methodology was applied to quantify alternariol (AOH), alternariol methyl ether (AME) and tenuazonic acid (TeA) in 65 samples of whole wheat, bran, and flour. The extraction methodology allowed extracting the three toxins simultaneously. Limits of detection in wheat were 3.4, 4.5, and 0.5 µg kg?1 for AOH, AME and TeA, respectively. For bran, these data were 3.1, 4.5, and 12 µg kg?1 and for flour 50, 70, and 14 µg kg?1, respectively. The studied recoveries were higher than 70% and RSD was below 10%. Wheat and bran samples showed low AOH and AME contamination compared to TeA. The averages levels found for TeA in wheat, bran and flour were 19,190, 16,760, and 7360 µg kg?1, respectively. 相似文献