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https://www.readbyqxmd.com/read/28722752/application-of-a-sensory-instrumental-tool-to-study-apple-texture-characteristics-shaped-by-altitude-and-time-of-harvest
#1
Mathilde Charles, Maria Laura Corollaro, Luigi Manfrini, Isabella Endrizzi, Eugenio Aprea, Angelo Zanella, Luca Corelli Grappadelli, Flavia Gasperi
BACKGROUND: Texture is important in the preferences of apple consumers. Of the pre-harvest factors affecting fruit quality and especially texture, altitude and subsequent climatic conditions are crucial, determining differences in the physiological mechanisms of fruit growth, ripening stage and chemical composition, as demonstrated by several studies. This work applies a detailed sensory-instrumental protocol developed in a previous paper(1) to investigate the impact of altitude, time of harvest and their cross-effect on sensory characteristics of apple, with a focus on texture...
July 19, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28322320/sweet-taste-in-apple-the-role-of-sorbitol-individual-sugars-organic-acids-and-volatile-compounds
#2
Eugenio Aprea, Mathilde Charles, Isabella Endrizzi, Maria Laura Corollaro, Emanuela Betta, Franco Biasioli, Flavia Gasperi
Sweetness is one of the main drivers of consumer preference, and thus is given high priority in apple breeding programmes. Due to the complexity of sweetness evaluation, soluble solid content (SSC) is commonly used as an estimation of this trait. Nevertheless, it has been demonstrated that SSC and sweet taste are poorly correlated. Though individual sugar content may vary greatly between and within apple cultivars, no previous study has tried to investigate the relationship between the amount of individual sugars, or ratios of these, and apple sweetness...
March 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28041644/mutations-in-pih1d3-cause-x-linked-primary-ciliary-dyskinesia-with-outer-and-inner-dynein-arm-defects
#3
Tamara Paff, Niki T Loges, Isabella Aprea, Kaman Wu, Zeineb Bakey, Eric G Haarman, Johannes M A Daniels, Erik A Sistermans, Natalija Bogunovic, Gerard W Dougherty, Inga M Höben, Jörg Große-Onnebrink, Anja Matter, Heike Olbrich, Claudius Werner, Gerard Pals, Miriam Schmidts, Heymut Omran, Dimitra Micha
Defects in motile cilia and sperm flagella cause primary ciliary dyskinesia (PCD), characterized by chronic airway disease, infertility, and left-right body axis disturbance. Here we report maternally inherited and de novo mutations in PIH1D3 in four men affected with PCD. PIH1D3 is located on the X chromosome and is involved in the preassembly of both outer (ODA) and inner (IDA) dynein arms of cilia and sperm flagella. Loss-of-function mutations in PIH1D3 lead to absent ODAs and reduced to absent IDAs, causing ciliary and flagellar immotility...
January 5, 2017: American Journal of Human Genetics
https://www.readbyqxmd.com/read/25023285/modulation-of-endotoxicity-of-shigella-generalized-modules-for-membrane-antigens-gmma-by-genetic-lipid-a-modifications-relative-activation-of-tlr4-and-tlr2-pathways-in-different-mutants
#4
Omar Rossi, Isabella Pesce, Carlo Giannelli, Susanna Aprea, Mariaelena Caboni, Francesco Citiulo, Sara Valentini, Ilaria Ferlenghi, Calman Alexander MacLennan, Ugo D'Oro, Allan Saul, Christiane Gerke
Outer membrane particles from Gram-negative bacteria are attractive vaccine candidates as they present surface antigens in their natural context. We previously developed a high yield production process for genetically derived particles, called generalized modules for membrane antigens (GMMA), from Shigella. As GMMA are derived from the outer membrane, they contain immunostimulatory components, especially lipopolysaccharide (LPS). We examined ways of reducing their reactogenicity by modifying lipid A, the endotoxic part of LPS, through deletion of late acyltransferase genes, msbB or htrB, in GMMA-producing Shigella sonnei and Shigella flexneri strains...
September 5, 2014: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/23632036/food-neophobia-and-its-relation-with-olfactory-ability-in-common-odour-identification
#5
M Luisa Demattè, Isabella Endrizzi, Franco Biasioli, Maria Laura Corollaro, Nicola Pojer, Massimiliano Zampini, Eugenio Aprea, Flavia Gasperi
Food neophobia is strictly connected with many different aspects of human feeding, ranging from food preferences to food choice, from active chemosensory exploration of the world (sniffing and tasting) to physiological responses associated with alertness. Therefore in this study, we tested the ability of 167 participants (54 women and 113 men, aged between 20 and 59 years old) to correctly identify 36 common odours, and we verified whether such ability could be related to their level of neophobia toward food and to demographic parameters (i...
September 2013: Appetite
https://www.readbyqxmd.com/read/20690164/ptr-tof-ms-and-data-mining-methods-for-rapid-characterisation-of-agro-industrial-samples-influence-of-milk-storage-conditions-on-the-volatile-compounds-profile-of-trentingrana-cheese
#6
Alessandra Fabris, Franco Biasioli, Pablo M Granitto, Eugenio Aprea, Luca Cappellin, Erna Schuhfried, Christos Soukoulis, Tilmann D Märk, Flavia Gasperi, Isabella Endrizzi
Proton transfer reaction-mass spectrometry (PTR-MS), a direct injection mass spectrometric technique based on an efficient implementation of chemical ionisation, allows for fast and high-sensitivity monitoring of volatile organic compounds (VOCs). The first implementations of PTR-MS, based on quadrupole mass analyzers (PTR-Quad-MS), provided only the nominal mass of the ions measured and thus little chemical information. To partially overcome these limitations and improve the analytical capability of this technique, the coupling of proton transfer reaction ionisation with a time-of-flight mass analyser has been recently realised and commercialised (PTR-TOF-MS)...
September 2010: Journal of Mass Spectrometry: JMS
https://www.readbyqxmd.com/read/19348421/investigation-of-volatile-compounds-in-two-raspberry-cultivars-by-two-headspace-techniques-solid-phase-microextraction-gas-chromatography-mass-spectrometry-spme-gc-ms-and-proton-transfer-reaction-mass-spectrometry-ptr-ms
#7
COMPARATIVE STUDY
Eugenio Aprea, Franco Biasioli, Silvia Carlin, Isabella Endrizzi, Flavia Gasperi
The volatile compounds emitted by two raspberry varieties ( Rubus idaeus , cv. Polka and Tulameen) were analyzed, in both the case of fresh fruits and juices, by two headspace methods that are rapid, solvent-free, and with reduced or no sample pretreatment: solid-phase microextraction/gas chromatography-mass spectrometry (SPME/GC-MS) and proton-transfer reaction-mass spectrometry (PTR-MS). Multivariate analysis of the SPME/GC-MS results allows for an unambiguous sample discrimination for both mashed fruits and juices...
May 27, 2009: Journal of Agricultural and Food Chemistry
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