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https://www.readbyqxmd.com/read/28530554/simultaneous-determination-of-fumonisins-b1-and-b2-in-different-types-of-maize-by-matrix-solid-phase-dispersion-and-hplc-ms-ms
#1
Gabriel Barros de Oliveira, Carolyne Menezes de Castro Gomes Vieira, Ricardo Mathias Orlando, Adriana Ferreira Faria
This work involved the optimization and validation of a method, according to Directive 2002/657/EC and the Analytical Quality Assurance Manual of Ministério da Agricultura, Pecuária e Abastecimento, Brazil, for simultaneous extraction and determination of fumonisins B1 and B2 in maize. The extraction procedure was based on a matrix solid phase dispersion approach, the optimization of which employed a sequence of different factorial designs. A liquid chromatography-tandem mass spectrometry method was developed for determining these analytes using the selected reaction monitoring mode...
October 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28528894/the-social-facilitation-of-eating-without-the-presence-of-others-self-reflection-on-eating-makes-food-taste-better-and-people-eat-more
#2
Ryuzaburo Nakata, Nobuyuki Kawai
Food tastes better and people eat more of it when eaten with company than alone. Although several explanations have been proposed for this social facilitation of eating, they share the basic assumption that this phenomenon is achieved by the existence of co-eating others. Here, we demonstrate a similar "social" facilitation of eating in the absence of other individuals. Elderly participants tasted a piece of popcorn alone while in front of a mirror (which reflects the participant themselves eating popcorn) or in front of a wall-reflecting monitor, and were found to eat more popcorn and rate it better tasting in the self-reflecting condition than in the monitor condition...
May 18, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28490108/evaluation-of-2-acetyl-1-pyrroline-in-foods-with-an-emphasis-on-rice-flavour
#3
REVIEW
Xuan Wei, Dody D Handoko, Leela Pather, Lisa Methven, J Stephen Elmore
The popcorn-like aroma compound 2-acetyl-1-pyrroline (2-AP) is a key contributor to the desirable aroma of fragrant rice and is also important in the aroma of other foods, such as pandan leaf, popcorn and Mediterranean sausage. It can be formed enzymatically in the rice grain as it grows and is also formed, as part of the Maillard reaction, when rice is heated. This review examines the formation of 2-AP in rice and other foods, particularly its formation during cooking, focusing on the importance of the Maillard reaction between reducing sugar breakdown products and 1-pyrroline derived from the amino acids proline and ornithine...
October 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28449323/in-vitro-comparison-of-renal-stone-laser-treatment-using-fragmentation-and-popcorn-technique
#4
Paul Klaver, Tjeerd de Boorder, Alex I Rem, Tycho M T W Lock, Herke Jan Noordmans
OBJECTIVE: To study the effectiveness of two laser techniques clinically used to fragment renal stones: fragmenting technique (FT) and popcorn technique (PT). METHODS: Phantom stones were placed in a test tube filled with water, mimicking a renal calyx model. A Holmium:YAG laser was used for fragmentation using both techniques. Four series of experiments were performed with two parameters: the technique (FT or PT) and the number of stones in the test tube (one or four)...
April 27, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28444823/dissociable-corticostriatal-circuits-underlie-goal-directed-versus-cue-elicited-habitual-food-seeking-after-satiation-evidence-from-a-multimodal-mri-study
#5
Henk van Steenbergen, Poppy Watson, Reinout W Wiers, Bernhard Hommel, Sanne de Wit
The present multimodal MRI study advances our understanding of the corticostriatal circuits underlying goal-directed versus cue-driven, habitual food seeking. To this end, we employed a computerized Pavlovian-instrumental transfer (PIT) paradigm. During the test phase, participants were free to perform learnt instrumental responses (left and right key presses) for popcorn and Smarties outcomes. Importantly, prior to this test half of the participants had been sated on popcorn and the other half on Smarties - resulting in a reduced desirability of those outcomes...
April 26, 2017: European Journal of Neuroscience
https://www.readbyqxmd.com/read/28416857/compositional-variability-of-nutrients-and-phytochemicals-in-corn-after-processing
#6
P S Prasanthi, N Naveena, M Vishnuvardhana Rao, K Bhaskarachary
The result of various process strategies on the nutrient and phytochemical composition of corn samples were studied. Fresh and cooked baby corn, sweet corn, dent corn and industrially processed and cooked popcorn, corn grits, corn flour and corn flakes were analysed for the determination of proximate, minerals, xanthophylls and phenolic acids content. This study revealed that the proximate composition of popcorn is high compared to the other corn products analyzed while the mineral composition of these maize products showed higher concentration of magnesium, phosphorus, potassium and low concentration of calcium, manganese, zinc, iron, copper, and sodium...
April 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28407941/screening-and-identification-of-per-and-polyfluoroalkyl-substances-in-microwave-popcorn-bags
#7
Itsaso Zabaleta, Noelia Negreira, Ekhine Bizkarguenaga, Ailette Prieto, Adrian Covaci, Olatz Zuloaga
Liquid chromatography coupled to quadrupole time-of-flight mass spectrometry (LC-QToF-MS) was used for the accurate identification (<10ppm) of different polyfluoroalkylphosphates (PAPs) and their intermediate and end degradation products in popcorn bags. Up to 46 per- and polyfluoroalkyl substances (PFASs) and precursors were identified. Moreover, an accurate method based on focused ultrasonic solid-liquid extraction (FUSLE) and a clean-up step with Envi-Carb sorbent was validated and applied to the quantification of 24 PFASs in popcorn bags from over twelve European countries, three American countries and two Asian countries...
September 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28248570/the-diacetyl-exposed-human-airway-epithelial-secretome-new-insights-into-flavoring-induced-airways-disease
#8
David M Brass, William M Gwinn, Ashlee M Valente, Francine L Kelly, Christie D Brinkley, Andrew E Nagler, M Arthur Moseley, Daniel L Morgan, Scott M Palmer, Matthew W Foster
Bronchiolitis obliterans (BO) is an increasingly important lung disease characterized by fibroproliferative airway lesions and decrements in lung function. Occupational exposure to the artificial food flavoring ingredient diacetyl, commonly used to impart a buttery flavor to microwave popcorn, has been associated with BO development. In the occupational setting, diacetyl vapor is first encountered by the airway epithelium. To better understand the effects of diacetyl vapor on the airway epithelium we used an unbiased proteomic approach to characterize both the apical and basolateral secretomes of air liquid interface cultures of primary human airway epithelial cells from four unique donors after exposure to an occupationally relevant ~1100 ppm of diacetyl vapor or PBS as a control on alternating days...
March 1, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28198509/multivariate-approach-in-popcorn-genotypes-using-the-ward-mlm-strategy-morpho-agronomic-analysis-and-incidence-of-fusarium-spp
#9
R N F Kurosawa, A T do Amaral Junior, F H L Silva, A Dos Santos, M Vivas, S H Kamphorst, G F Pena
The multivariate analyses are useful tools to estimate the genetic variability between accessions. In the breeding programs, the Ward-Modified Location Model (MLM) multivariate method has been a powerful strategy to quantify variability using quantitative and qualitative variables simultaneously. The present study was proposed in view of the dearth of information about popcorn breeding programs under a multivariate approach using the Ward-MLM methodology. The objective of this study was thus to estimate the genetic diversity among 37 genotypes of popcorn aiming to identify divergent groups associated with morpho-agronomic traits and traits related to resistance to Fusarium spp...
February 8, 2017: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28002615/genetic-variability-affecting-exserohilum-turcicum-resistance-in-popcorn-lines-grown-under-high-and-low-phosphorus-conditions
#10
A T Amaral, R M Ribeiro, P H D Santos, T P S Poltronieri, J M S Vivas, I F S Gerhardt, B M Carvalho, C S Freitas, S B Miranda
Northern leaf blight (NLB), caused by Exserohilum turcicum, is one of the main foliar diseases that affect popcorn culture. Farmers use many control measures to minimize damage caused by this disease, among which, the use of cultivars with genetic resistance is the most effective and economical. The aim of this study was to investigate genetic variability influencing resistance to NLB in 25 popcorn maize lines grown under high and low phosphorus conditions in relation to foliar fungal disease caused by E. turcicum...
December 19, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/28002606/proposal-of-a-super-trait-for-the-optimum-selection-of-popcorn-progenies-based-on-path-analysis
#11
A T do Amaral Júnior, A Dos Santos, I F S Gerhardt, R N F Kurosawa, N F Moreira, M G Pereira, G de A Gravina, F H de L Silva
A challenge faced by popcorn breeding programs is the existence of a negative correlation between the two main traits, popping expansion and yield, which hinders simultaneous gains. The objective of this study was to investigate the use of a new variable or super trait, which favors the reliable selection of superior progenies. The super trait 'expanded popcorn volume per hectare' was introduced in the evaluation of 200 full-sib families of the eighth recurrent intrapopulation selection cycle, which were arranged in randomized blocks with three replicates in two environments...
December 19, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27966763/combining-ability-of-s3-progenies-for-key-agronomic-traits-in-popcorn-comparison-of-testers-in-top-crosses
#12
COMPARATIVE STUDY
V J de Lima, A T do Amaral Junior, S H Kamphorst, G F Pena, J T Leite, K F M Schmitt, C Vittorazzi, J E de Almeida Filho, F Mora
The successful development of hybrid cultivars depends on the reliability of estimated combining ability of the parent lines. The objectives of this study were to assess the combining ability of partially inbred S3 families of popcorn derived from the open-pollinated variety UENF 14, via top-crosses with four testers, and to compare the testers for their ability to discriminate the S3 progenies. The experiment was conducted in the 2015/2016 crop season, in an incomplete-block (Lattice) design with three replications...
December 2, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27870600/laccase-gene-sh-lac-is-involved-in-the-growth-and-melanin-biosynthesis-of-scleromitrula-shiraiana
#13
Zhiyuan Lǚ, Xin Kang, Zhonghuai Xiang, Ningjia He
Scleromitrula shiraiana causes the popcorn disease in mulberry trees resulting in severe economic losses. Previous studies have shown that melanin may play a vital role in establishing the pathogenicity of fungi. In the present study, we identified the melanin produced in S. shiraiana belongs to DHN melanin by gas chromatography-mass spectrometry, and cloned the laccase Sh-lac, a potential DHN melanin biosynthesis gene from S. shiraiana. We obtained two stable Sh-lac silenced transformants using RNAi, ilac-4 and 8 to elucidate the DHN melanin biosynthetic pathway in S...
March 2017: Phytopathology
https://www.readbyqxmd.com/read/27812456/endoscope-assisted-resection-of-cavernous-angioma-at-the-foramen-of-monro-a-case-report
#14
Yuji Matsumoto, Kazuhiko Kurozumi, Yousuke Shimazu, Tomotsugu Ichikawa, Isao Date
INTRODUCTION: Intraventricular cavernous angiomas are rare pathological entities, and those located at the foramen of Monro are even rarer. We herein present a case of cavernous angioma at the foramen of Monro that was successfully treated by neuroendoscope-assisted surgical removal, and review the relevant literature. CASE PRESENTATION: A 65-year-old woman had experienced headache and vomiting for 10 days before admission to another hospital. Magnetic resonance imaging (MRI) showed a mass at the foramen of Monro, and obstructive hydrocephalus of both lateral ventricles...
2016: SpringerPlus
https://www.readbyqxmd.com/read/27725715/swiss-identity-smells-like-chocolate-social-identity-shapes-olfactory-judgments
#15
Géraldine Coppin, Eva Pool, Sylvain Delplanque, Bastiaan Oud, Christian Margot, David Sander, Jay J Van Bavel
There is extensive evidence that social identities can shape people's attitudes and behavior, but what about sensory judgments? We examined the possibility that social identity concerns may also shape the judgment of non-social properties-namely, olfactory judgment. In two experiments, we presented Swiss and non-Swiss participants with the odor of chocolate, for which Switzerland is world-famous, and a control odor (popcorn). Swiss participants primed with Swiss identity reported the odor of chocolate (but not popcorn) as more intense than non-Swiss participants (Experiments 1 and 2) and than Swiss participants primed with individual identity or not primed (Experiment 2)...
October 11, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27690424/elucidation-of-thermally-induced-changes-in-key-odorants-of-white-mustard-seeds-sinapis-alba-l-and-rapeseeds-brassica-napus-l-using-molecular-sensory-science
#16
Eva Ortner, Michael Granvogl, Peter Schieberle
Heat-processing of Brassica seeds led to the formation of a characteristic pleasant popcorn-like and coffee-like aroma impression compared to the mainly pea-like aroma of the corresponding raw seeds. To analyze this phenomenon on a molecular basis, raw and roasted white mustard seeds and rapeseeds were analyzed using the sensomics approach. Application of comparative aroma extract dilution analysis (cAEDA) and identification experiments to raw and roasted (140 °C, 30 min) mustard seeds revealed 36 odorants (all identified for the first time) and 47 odorants (41 newly identified), respectively...
November 2, 2016: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/27646179/-diet-and-nutrient-intake-of-pregnant-women-in-the-capital-area-in-iceland
#17
Ingibjorg Gunnarsdottir, Ellen Alma Tryggvadottir, Bryndis Eva Birgisdottir, Thorhallur Ingi Halldorsson, Helga Medek, Reynir Tomas Geirsson
INTRODUCTION: Nutrition in pregnancy may affect growth, development and health of the child in the short and long term. We aimed to assess diet and nutrient intake among pregnant women in the capital area and evaluate differences in dietary intake between women who were overweight/obese and normal weight before pregnancy. MATERIAL AND METHODS: Pregnant women aged 18-40 years (n=183) living in the capital area kept four day weighed food records to assess diet and nutrient intake in the 19th-24th week of pregnancy (n=98 with body mass index (BMI) <25 kg/m2; n=46 with BMI 25-29...
September 2016: Læknablađiđ
https://www.readbyqxmd.com/read/27639562/popcorn-ball-calcification
#18
REVIEW
Dana E Amiraian, David J DiSantis
No abstract text is available yet for this article.
December 2016: Abdominal Radiology
https://www.readbyqxmd.com/read/27633103/snack-food-satiety-and-weight
#19
REVIEW
Valentine Yanchou Njike, Teresa M Smith, Omree Shuval, Kerem Shuval, Ingrid Edshteyn, Vahid Kalantari, Amy L Yaroch
In today's society, snacking contributes close to one-third of daily energy intake, with many snacks consisting of energy-dense and nutrient-poor foods. Choices made with regard to snacking are affected by a multitude of factors on individual, social, and environmental levels. Social norms, for example, that emphasize healthful eating are likely to increase the intake of nutrient-rich snacks. In addition, satiety, the feeling of fullness that persists after eating, is an important factor in suppressing overconsumption, which can lead to overweight and obesity...
September 2016: Advances in Nutrition
https://www.readbyqxmd.com/read/27543127/laser-induced-breakdown-spectroscopy-for-elemental-characterization-of-calcitic-alterations-on-cave-walls
#20
Léna Bassel, Vincent Motto-Ros, Florian Trichard, Frédéric Pelascini, Faten Ammari, Rémy Chapoulie, Catherine Ferrier, Delphine Lacanette, Bruno Bousquet
Cave walls are affected by different kinds of alterations involving preservative issues in the case of ornate caves, in particular regarding the rock art covering the walls. In this context, coralloids correspond to a facies with popcorn-like aspect belonging to the speleothem family, mostly composed of calcium carbonate. The elemental characterization indicates the presence of elements that might be linked to the diagenesis and the expansion of the alterations as demonstrated by prior analyses on stalagmites...
August 20, 2016: Environmental Science and Pollution Research International
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