Bioaccessibility of tocopherols, carotenoids, and ascorbic acid from milk- and soy-based fruit beverages: influence of food matrix and processing     

Cilla A  Alegría A  de Ancos B  Sánchez-Moreno C  Cano MP  Plaza L  Clemente G  Lagarda MJ  Barberá R 《Journal of agricultural and food chemistry》2012,60(29):7282-7290

A study was made of the effect of high-pressure processing (HPP) and thermal treatment (TT) on plant bioactive compounds (tocopherols, carotenoids, and ascorbic acid) in 12 fruit juice-milk beverages and of how the food matrix [whole milk (JW), skimmed milk (JS), and soy milk (JSy)] modulates their bioaccessibility (%). HPP (400 MPa/40 °C/5 min) produced a significant decrease in carotenoid and ascorbic acid bioaccessibility in all three beverages and maintained the bioaccessibility of tocopherols in JW and JS while decreasing it in JSy. TT (90 °C/30 s) produced a significant decrease in tocopherol and carotenoid bioaccessibility in all three beverages and increased the bioaccessibility of ascorbic acid. With regard to the food matrix, α-tocopherol and ascorbic acid bioaccessibility was greatest in JW beverages and lowest in JSy beverages, whereas no significant differences were found among the three beverages in terms of carotenoid bioaccessibility. HPP-treated samples showed higher tocopherol and carotenoid bioaccessibility than TT-treated samples, thus indicating that HPP combined with a milk matrix positively modulates the bioaccessibility of certain types of bioactive components of food, mainly those of a lipophilic nature.  相似文献   

Effect of the spatial resolution on landscape control of soil fertility in a semiarid area   总被引：1，自引：0，他引：1  

Antonio Ruiz-Navarro  Gonzalo G. Barberá  Javier García-Haro  Juan Albaladejo 《Journal of Soils and Sediments》2012,12(4):471-485

Purpose  

Most dryland ecosystems show high landscape heterogeneity that can influence soil fertility, although the underlying processes are still poorly understood. Furthermore, our understanding of the same could be affected by the scale dependency of the landscape representation. Here, we study the relationships between soil and landscape attributes at different spatial resolutions in a semiarid area, to better understand which landscape processes control soil fertility and whether such control is affected by the resolution of landscape representation.  相似文献   

Increasing the functionalities and accuracy of fisheries electronic monitoring systems     

Eric Gilman  Gonzalo Legorburu  Andrew Fedoruk  Craig Heberer  Mark Zimring  Amos Barkai 《水产资源保护:海洋与淡水生态系统》2019,29(6):901-926

Effects of low salinity exposure on immunological,physiological and growth performance in Litopenaeus vannamei     

Hctor M. Esparza‐Leal  Jesús T. Ponce‐Palafox  Carlos M. Cervantes‐Cervantes  Wenceslao Valenzuela‐Quinez  Antonio Luna‐Gonzlez  Ely S. Lpez‐lvarez  Nadia Vzquez‐Montoya  Mariel Lpez‐Espinoza  Rosa L. Gmez‐Peraza 《Aquaculture Research》2019,50(3):944-950

Growth, immunological and physiological parameters of white shrimp Litopenaeus vannamei reared at different salinity levels (1, 10, 15, 25 and 35 g/L) at stocking density of 214 shrimp/m³ were examined at 1, 30 and 63 days. Results showed that the total haemocyte count (THC) of shrimp decreased with time at all salinity levels, indicating a potential reduction in the resistance of shrimp against pathogens, since a low value of THC indicates a perturbation of the immune system. Glucose and protein values observed in the haemolymph throughout the study indicate that shrimp adapted well to low salinities (1, 10 and 15 g/L). Although of those shrimp reared at 10 g/L only 83.3% survived, at this salinity, shrimp depicted a higher glucose concentration in haemolymph at the beginning and end of the study.  相似文献   

Assessing the impacts of tourism on the world's largest fish Rhincodon typus at Panaon Island,Southern Leyte,Philippines          下载免费PDF全文

Gonzalo Araujo  Fabien Vivier  Jessica June Labaja  Daniel Hartley  Alessandro Ponzo 《水产资源保护:海洋与淡水生态系统》2017,27(5):986-994

Price and production trends in the marine fish aquaculture in Spain     

María Dolores Garza-Gil  Manuel Varela-Lafuente  & Gonzalo Caballero-Miguez 《Aquaculture Research》2009,40(3):274-281

The Spanish aquaculture sector has undergone a rapid and continuous growth becoming one of the biggest European producers. A wide range of species are farmed and, among them, the sea bass, sea bream and turbot make a significant contribution to the total of the Spanish fish farming output. In this paper, we analyse and predict the medium-term trend of the production and price level for the three leading species previously mentioned. The results obtained show a significant increase in the production of sea bream, sea bass and turbot. The results show also a slight decrease in the sea bream average price, a stable trends for the sea bass and increasing prices for the turbot.  相似文献   

Structural changes in humic substances after long-term fertilization of a calcareous soil with pig slurries     

Diana E. Jiménez-de-Santiago  Gonzalo Almendros  Àngela D. Bosch-Serra 《Soil Use and Management》2023,39(4):1351-1363

Pig slurries are widely used on calcareous soils in European rainfed systems. Here we assess their impact on the amount of soil organic carbon (SOC) and on the composition of humic-type substances (HTS). Seven doses of slurry (five from fattening pigs and two from sows) ranging from 1.0 to 4.8 Mg ha⁻¹ yr⁻¹ of organic matter were evaluated after a period of 12 years and compared with mineral fertilizer treatment. At the end of the last annual cropping season (September), SOC was quantified, and HTS were isolated by alkaline extraction followed by acid precipitation, and studied by visible spectroscopy (800–400 nm) and Fourier-transformed infrared spectroscopy (4000–400 cm⁻¹). Following the trend in the slurry organic matter applied rates, SOC increased from 9.5 g C kg⁻¹ (mineral treatment) to 13.8 g C kg⁻¹. This SOC increase was equivalent to c. 25.4% of the slurry organic carbon applied. The incorporation of aliphatic structures, mainly polyalkyl, from slurries into the HTS tends to modify the composition of the soil organic matter (SOM), which is reflected in a decrease in the intensity of FT-IR peaks related to aromatic structures. Despite the trend of significant increase in SOC with fattening slurries, mainly from the organic matter rate of 1.6 Mg ha⁻¹ yr⁻¹ (c. 185 kg N ha⁻¹), the composition of the HTS showed an important aliphatic enhancement. The FTIR results showed that using exclusively the relative intensities of specific peaks (alkyl, carboxyl, aromatic and amide groups) as variables for the discriminant analysis, it is possible to identify HA between different groups of soils treated with progressive levels of slurry. Although the new aliphatic components could be considered important to improve soil physical quality, after the incorporation of additional SOM, the spectroscopic characteristics of HTS in soils treated with slurries suggested a weak effect in long-term C sequestration, as the newly incorporated OC forms are not qualitatively similar to the presumably stable native SOM. These potential changes in SOC and SOM composition at field level are constrained by the maximum allowed N rates from organic origin in some agricultural systems.  相似文献