Centro de Investigación y Tecnología Agroalimentaria de Aragón
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Mechanical characterization of blends containing recycled paper pulp and other lignocellulosic materials to develop hydromulches for weed control
Full text linkSpreading of hydromulch as a crop management technique might show important advantages over plastic films for weed control, because it can be applied anywhere in a field, even in orchard and vineyard rows. In the present work, 24 blends were prepared by mixing paper pulp, from recovered paper and cardboard coming from paper mills, with different additives: (a) wheat straw, rice hulls, and substrate used for mushroom cultivation on the one hand as fillers, and (b) rice bran, white glue, sodium silicate, and powered gypsum on the other hand as agglomerating agents. The blends were tested with a texture analyser to evaluate their mechanical properties, testing the puncture resistance (24 blends) and the tensile strength (15 blends). Scanning electron photomicrographs of some blends were obtained in order to explore the relationship between their components and the mechanical properties. The results indicate that a blend prepared with paper pulp, wheat straw sieved at 2.5 mm and gypsum attained the highest stress resistance and tensile strength. An environmentally controlled experiment was performed on this and another hydromulch in which rice husk substituted wheat straw to evaluate their efficiency for reducing weed seedling emergence, using propagules of four common summer weeds. Compared with the control treatment performed, the hydromulches reduced seedling emergence from 64.6% to 95.9%. In general, the percentage of dead seedlings underneath was greater than that which passed through the barrier, making the hydromulches promising tools for preventing seedling emergence and for managing the weed seed bank in field conditions.This work was supported by the Instituto Nacional de Investigaciones Agrarias of the Spanish Government [grant numbers RTA2015-00047-C01 and RTA2015-00047-C04]. We would like to thank S. Alcal a, R. Baquero, M. Juli a, A.I. Marı´, I. Morales, M. Mic o, and J. Pueyo for their technical assistance. We are indebted to the companies that supplied the raw
materials used to develop the prototypes of the hydromulchesMulchingStrengthPunchingCrop residuesSeedling emergenceSeed bankIn pres
ECHO: involucrando a la ciudadanía en la ciencia del suelo: el camino hacia unos suelos más saludables
Full text linkExploring consumer preferences and policy implications in local food systems: Does taste or labeling matter in honey?
Full text linkThis study analyses the influence of geographical origin and taste on honey consumer behavior. First, we explore the influence of geographical origin on consumers’ hedonic evaluation of honey. We then assess the influence of geographical origin and taste on their willingness to pay (WTP) for honey. We conducted a field experiment at a real supermarket. The participants were exposed to two treatments (blind and informed treatment). The findings showed that knowledge about the geographical origin of honey influences consumers’ hedonic evaluations and that the WTP for honey is more strongly influenced by geographical origin than by taste.This work was supported by Gobierno de Aragón—Fondo de Inversiones de Teruel (FITE) and Gobierno de España under grant project [FITE‐2018‐FITEMIEL. Recuperar la miel para recuperar el territorio]. IP: Tiziana de-Magistris. And also was under the grant project PCI2022-132917 “Development of a blockchain-based ecosystem that allows an improved
positioning of small producers of honey on local and international markets (TECHONEY). PRIMA, SECTION 2 (2021– 2025)”, supported by MCIN/AEI/10.13039/501100011033 and by European Union “NextGenerationEU”/PRTR. IP: Tiziana de-MagistrisField experimentHoneyHedonic likingGeographical originWillingnessto-payPublishe
Evaluating the Influence of Missing Data From Crop Vegetation Index Time Series on Copernicus HR-VPP Phenological Products
Full text linkThis work is part of the LAIKcA project, R+D+i PID2021-124029OR-I00,
funded by MICIU/AEI/10.13039/501100011033 and FEDER/EU.
Evaluating the Influence of Missing Data From
the Crop Vegetation Index Time Series on
Copernicus HR-VPP Phenological Products
Alexey Valero-Jorge, Mª. Auxiliadora Casterad and José Tomás Alcalá 1 1 2
Introduction Materials
The Agricultural Parcels
Geographic Information
System allows for the
geographic identification of
crop parcels declared by
farmers.
Results
NDVI vegetation index
images.
QFLAG2 quality product:
eliminates noisy pixels.
Images of phenology
products: SOSD; MAXD
and EOSD.
R package developed as part
of the research for time series
processing of spectral data
related to vegetation
phenology [2].
The first author gratefully acknowledges grant PRE2022-102328 funded by
MICIU/AEI/10.13039/501100011033 and ESF+
Dietary Inclusion of Carob Pulp (Ceratonia siliqua L.) Does Not Replace the Antioxidant Effect of Vitamin E in Lambs’ Meat to Lengthen Shelf-Life
Full text linkThe objective of this study was to evaluate the impact of dietary carob pulp (Cp, Ceratonia
siliqua L.) and vitamin E (Vit E) on the quality and shelf-life of light lamb meat stored for a maximum
of 15 days under modified atmosphere packaging (MAP). Forty-eight lambs (half females and half
entire males, 25.3 ± 0.3 kg of body weight and 83 ± 5.8 days old) were randomly selected and
slaughtered after an experimental fattening period with a 2 × 2 factorial design: 0 vs. 20% Cp and
40 vs. 300 IU of Vit E/kg of diet for 41 days. The carcass traits, fatty acid (FA) profile, antioxidant
content, colour, lipid oxidation, and microbial count in the meat were evaluated. Scarce interactions
between Cp and Vit E were observed on most of the variables studied. The dietary inclusion of
Cp did not affect carcass traits (p > 0.05) but produced minor changes in the content of branched
FA and reduced the α-tocopherol content in the meat (p < 0.05), while no impact was observed on
discolouration or lipid oxidation (p > 0.05). High Vit E supplementation increased the yellowness of
caudal fat and the α-tocopherol content, which limited discolouration and lipid oxidation (p < 0.05). Furthermore, the High Vit E diet (without Cp) controlled the psychrotrophic bacterial count after 15 days of storage. At slaughter, males were heavier than females but had lower carcass dressing
(p < 0.05). The lambs’ sex had minor impacts on the quality and shelf-life of meat. This study demonstrated that there is no synergistic interaction between Cp and Vit E on lamb meat quality and shelf-life. Including 20% of Cp in lamb diets is feasible without impairing meat quality. Nevertheless,
supplementation with 300 IU of Vit E/kg of feed is essential to extend the shelf-life of meat stored under MAP.This research was funding by the European Union’s-H2020 research and innovation programme under the MSCA fellowship (grant No. 801586) and the Technology Transfer Operation of the Rural Development Program of Catalonia 2014–2020 (Government of Catalonia and the
European Regional Development Funds, Grant code 01.02.01).tocopherolpolyphenolsmeat qualitycondensed tanninsfatty acidsPublishe
La compra pública alimentaria como oportunidad para la producción local agrupada de la provincia de Teruel
Full text linkActuación subvencionada por el Gobierno de España y el Gobierno de Aragón con cargo al Fondo de Inversiones de Terue
Detection of SNP and validation of a SFP InDel (deletion) in inverted repeat region of the Prunus species chloroplast genome
Full text linkIn order to control tree size, disease, precocity and stress most Prunus varieties are cultivated as composite plants grafted onto desirable rootstocks that impart all the afore-mentioned traits. Several Prunus rootstock breeding programs have been focused on the production of interspecific hybrids. The pedigree of most of these rootstocks remains unknown due to the lack of parental information necessitating the application of DNA-based knowledge in breeding programs. The amplification and sequencing of the chloroplast inverted repeat B (IRB) region spanning 25,960. bp from P. cerasifera (myrobalan plum) Ehrh., P. amygdalus (almond) and P. persica (peach) using the ASAP method revealed a single nucleotide polymorphisms (SNP) in the rps19. rpl2 IRB region in myrobalan when compared to almond and peach. In addition, a prominent and an easily identifiable single feature polymorphism (SFP-InDel (deletion)) of 18 nucleotides was discovered in reference to the peach chloroplast genome in the ycf1 gene in the IRB region. In this work, it has been developed a highly useful polymorphic molecular marker to characterize the maternal parent in interspecific hybrids of Prunus rootstocks as a first step toward developing pedigree information. The ycf1 SFP-InDel (deletion) has been successfully used in several 3-way hybrids generated in the stone fruit rootstock breeding program for the characterization of new interspecific plant material. This SFP is expected to be highly utile in characterizing the maternal lineage of Prunus hybrids in other breeding programs. © 2014.ASAPRootstockInDelPhylogenetic analysisSFPSNPPublishe
Analysis of the Induced Mild Heating by Airborne Ultrasound Application on the Convective Drying of Pork Liver
Full text linkEfficient use of meat by-products, such as pork liver, may entail a previous stage of dehydration for their stabilization, which involves significant energy and time investments. Airborne ultrasound application has been reported as a promising technique to accelerate the air drying of food materials. In this context, the present study addresses, for the first time, the thermal effect associated with ultrasound application on a meat by-product. For that purpose, drying experiments were conducted at 40 and 60 degrees C on pork liver cylinders at 2 m & sdot;s-1 with (US) and without (AIR) airborne ultrasound application. The modeling process was based on the principles of heat conduction and moisture diffusion, taking into account the external convection. The results showed that the use of ultrasound reduced the drying time by around 30% at 40 degrees C, although its impact was less pronounced at 60 degrees C. With the application of ultrasound, both the sample and air flow temperatures rose by about 4.5 and 2.5 degrees C, respectively, which partly explains the improvement of drying rate. Due to this low heating effect, airborne ultrasound application must be considered a non-thermal intensification strategy for convective drying of pork liver.Open Access funding provided thanks to the CRUE-CSIC
agreement with Springer Nature. The authors express their gratitude
for the fnancial support provided by the “Ministerio de Economía y
Competitividad (MINECO)” and the “Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria (INIA)” in Spain (Project
RTA2017-00024-C04-03). Eduardo A. Sanchez-Torres acknowledges
the FPU PhD contract (FPU18/01439) awarded by the “Ministerio de
Ciencia, Innovación y Universidades” in Spain.By-productsDryingEmerging technologiesAirborne ultrasoundThermal efectPublishe