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151.
152.
Mayra Díaz‐Ramírez Georgina Calderón‐Domínguez J. Jorge Chanona‐Pérez Arturo Janovitz‐Klapp Rubén López‐Santiago Reynold R. Farrera‐Rebollo Ma de la Paz Salgado‐Cruz 《International Journal of Food Science & Technology》2013,48(8):1649-1660
Sponge cake is an ideal product to be soaked with liquids, due to its porous structure; baking process causes differences in crumb features through the cake; therefore, it is important to know how these variations can affect its sorption capacity. The aim of this work was to study the relation between crumb cake structure at different levels (bottom, centre and top) and sorption characteristics when adding milk syrup. The Peleg model was the best to fit sorption data (R2 > 0.9), showing that the rate constant (k1) diminished as the cell density (r = 0.920) and gelatinisation percentage (r = 0.890) decreased, while moisture (r = ?0.999) and aw (r = ?0.994) increased; cell density only correlated with gelatinisation percentage (r = 0.997); micrographs showed that the sorption rate increased as more gelatinised starch and coagulated protein were found. To optimise the sorption process, the gelatinisation degree and crumb structure (cell density and types of pores) should be considered. 相似文献
153.
154.
Marcos Nieto Luis Salgado Julián Cabrera Narciso García 《Journal of Real-Time Image Processing》2008,3(1-2):61-75
In this paper a new fast mode decision (FMD) algorithm is proposed for the recent H.264/AVC video coding standard, aiming to reduce its computational load without loosing coding efficiency. This algorithm identifies redundancy and selects the minimum sub-set of modes for each macroblock (MB) required to provide high rate-distortion (RD) efficiency. It is based on a fast analysis of the histogram of the difference image between frames which classifies the areas of each frame as active or non-active by means of an adaptive thresholding technique. More coding effort is devoted to active areas with the selection of a large sub-set of Modes, as these areas are expected to be the most relevant in terms of RD cost. Results show reduction values around 35–65% of motion estimation (ME) time, preserving the RD cost for the Baseline Profile, by using P-Slices and without needing B-Slices. Moreover, the strategy works as an intelligent tool for real-time applications with constrained number of operations per frame: it wisely uses the given operational resources distributing them among those MBs that need it. 相似文献
155.
Michael N. Clifford Jo Kirkpatrick Nikolai Kuhnert Hajo Roozendaal Paula Rodrigues Salgado 《Food chemistry》2008
The behaviour of cis isomers of selected mono- and di-acyl chlorogenic acids produced by UV-irradiation has been investigated by LC–MSn. cis Isomers fragment identically to the more common trans isomers. cis-5-Acyl chlorogenic acids are more hydrophobic and elute later than their mono- or di-trans counterparts whereas the reverse is true for cis-3-acyl and cis-4-acyl chlorogenic acids. The cis isomers of 1,3-dicaffeoylquinic acid, the only 1-acyl chlorogenic acid investigated, are also more hydrophobic than the di-trans isomer. Coffee leaves had a proportionately greater content of cis isomers relative to trans isomers compared with coffee beans suggesting that UV-irradiation in vivo may also cause geometric isomerisation. 相似文献
156.
Karla T. Kucek Maria Aparecida F. César-Oliveira Helena M. Wilhelm Luiz P. Ramos 《Journal of the American Oil Chemists' Society》2007,84(4):385-392
The ethanolysis of refined soybean oil was investigated through a 23 experimental design that was carried out under the following levels: ethanol:oil molar ratios (MR) of 6:1 and 12:1, NaOH concentrations of 0.3 and 1.0 wt% in relation to the oil mass, and reaction temperatures of 30 and 70 °C. The ethanol:oil MR and the alkali concentration had an almost equivalent influence on the reaction yield, whereas the influence of increased reaction temperatures was very limited and higher catalyst concentrations led to greater yield losses due to the formation of soap. Ethyl ester yields of 97.2% were obtained at 70 °C, MR of 12:1 and 0.3 wt% NaOH. Replacement of 0.3 wt% NaOH by 1.0 wt% KOH under the same reaction conditions led to lower ester yields. Likewise the former, KOH provided the maximum ester yield (95.6%) at the highest molar ratio (12:1), with the reaction temperature having little influence on the catalyst performance. Ester yields beyond 98% were only achieved when a second ethanolysis stage was included in the process. In this regard, the application of 2 wt% Magnesol® after the first ethanolysis stage eliminated the need for water washing prior to the second ethanolysis stage and helped to generate a final product with less contaminating unreacted glycerides. 相似文献
157.
Raúl E. Cian Pablo R. Salgado Adriana N. Mauri Silvina R. Drago 《International Journal of Food Science & Technology》2020,55(3):1311-1317
The effects of wall hydrocolloids on delivery and bioaccessibility of encapsulated brewers’ spent grain ACE-I inhibitory peptides after simulated gastrointestinal digestion were assessed. Microencapsulation of peptides was carried out by spray drying using locust bean gum, P. columbina phycocolloids, or its mixtures as wall materials. Microcapsules presented round external surfaces with some concavities, negative surface charge and encapsulation efficiencies higher than 90%. The incorporation of phycocolloids to formulations increased the encapsulation efficiency, negative surface charge and resistance against digestive enzymes of microcapsules. Encapsulated peptides with P. columbina phycocolloids showed lower IC50 value of ACE-I inhibition than un-encapsulated peptides (2.4 ± 0.2 vs. 7.2 ± 0.3 mg mL−1 protein), but higher than that obtained for hydrolysate (1.5 ± 0.2 mg mL−1 protein), indicating a 75% protection of bioactivity. Electrostatic and hydrophobic interactions between P. columbina phycocolloids and brewers’ spent grain peptides could be implicated in the protection of peptides during gastrointestinal digestion. 相似文献
158.
159.
Lorenna Lino Santos Pedro Costa Lima De Almeida Carla Aparecida Rodrigues Luís Felipe Franco De Battisti Lellis Henrique Costa Renan Gomes Bastos Carla Miguel De Oliveira Vany Perpétua Ferraz Ana Lúcia Leite Moraes Hudsara Aparecida de Almeida Paula Fernanda Borges de Araújo Paula Marcelo José Dias Silva Wagner Vilegas Sandra Maria Oliveira Morais Veiga Ana Flávia Da Silva Amorim Geraldo Alves Da Silva Marcelo Aparecido Da Silva 《International Journal of Food Science & Technology》2019,54(8):2595-2603
The increase in chronic diseases has arisen interest to search for alternative treatments so that people can improve their quality of life. Thus, Carya illinoinensis is the subject of the present work which aims at determining whether it has antidiabetic activity. The plant was collected and its nuts were separated from their peels, dried and grinded and incorporated into the feed, in concentration of 6% and 10%, for the treatment of animals. The centesimal composition of this diet was also determined. From the nut was also obtained the fixed oil, for the profile of fatty acids, and the 70% hydroethanolic extract for the phytochemical analysis. The results have shown that species presents hypoglycaemic effect, high fat composition of unsaturated fatty acids and the presence of some phenolic compounds, directly related to the antidiabetic activity. Therefore, the specie presente benefits that can contribute to the binomial diet/health. 相似文献
160.
Julie Ann Kemp Marta Esgalhado Renata Azevedo Macedo Bruna Regis Ngila Raquel Teixeira Damasceno Elizabeth Aparecida Ferraz da Silva Torres Gustavo Henrique Ferreira Gonalinho Natlia Alvarenga Borges Lia Sumie Nakao Denis Fouque Denise Mafra 《Hemodialysis international. International Symposium on Home Hemodialysis》2019,23(2):189-197