Small intestinal obstruction by sunflower seed bezoar
We report a case of a 12-year-old boy who presented with abdominal pain, nausea and vomiting without any other clinical findings. Radiographic findings showed an area of obstruction in the small bowel, which we confirmed by performing an exploratory laparotomy. The treatment consisted of surgical removal of the obstructing bezoar from the distant ileum as well as excision of an incidentally identified Meckel's diverticulum. Postoperative discussions revealed, that the patient had ingested a large amount of unshelled sunflower seeds, which had caused a mass formation and obstruction of his small bowel. The patient did not s...
Source: Journal of Pediatric Surgery Case Reports - May 10, 2019 Category: Surgery Source Type: research
Mating Status of an Herbivorous Stink Bug Female Affects the Emission of Oviposition-Induced Plant Volatiles Exploited by an Egg Parasitoid
This study contributed to better understanding the host location process by egg parasitoids and laid the basis for the chemical characterization of the elicitor responsible for OIPV emission.
Introduction
Hymenopteran parasitoids play a key ecological role in many ecosystems and these insects have been recently suggested to be the most species-rich group within the animal kingdom (Forbes et al., 2018). Many parasitoid species are natural enemies of insect pests, which can be used in integrated pest management with the aim of reducing pesticide applications (van Lenteren, 2012; Heimpel and Mills, 2017). One of the k...
Source: Frontiers in Physiology - April 11, 2019 Category: Physiology Source Type: research
Screening, purification, and characterization of an extracellular lipase from Aureobasidium pullulans isolated from stuffed buns steamers
AbstractAn extracellular lipase fromAureobasidium pullulans was obtained and purified with a specific activity of 17.7 U/mg of protein using ultrafiltration and a DEAE-Sepharose Fast Flow column. Characterization of the lipase indicated that it is a novel finding from the speciesA. pullulans. The molecular weight of the lipase was 39.5 kDa, determined by sodium dodecyl sulfonate-polyacrylamide gel electrophoresis (SDS-PAGE). The enzyme exhibited its optimum activity at 40 °C and pH of 7. It also showed a remarkable stability in some organic solutions (30%, v/v) includingn-propanol, isopropanol, dimethyl sulfoxide (DMSO), ...
Source: Journal of Zhejiang University. Science. B. - March 31, 2019 Category: Universities & Medical Training Source Type: research
Screening, purification, and characterization of an extracellular lipase from Aureobasidium pullulans isolated from stuffed buns steamers.
Abstract
An extracellular lipase from Aureobasidium pullulans was obtained and purified with a specific activity of 17.7 U/mg of protein using ultrafiltration and a DEAE-Sepharose Fast Flow column. Characterization of the lipase indicated that it is a novel finding from the species A. pullulans. The molecular weight of the lipase was 39.5 kDa, determined by sodium dodecyl sulfonate-polyacrylamide gel electrophoresis (SDS-PAGE). The enzyme exhibited its optimum activity at 40 °C and pH of 7. It also showed a remarkable stability in some organic solutions (30%, v/v) including n-propanol, isopropanol, dimeth...
Source: J Zhejiang Univ Sci ... - March 31, 2019 Category: Science Authors: Li Y, Liu TJ, Zhao MJ, Zhang H, Feng FQ Tags: J Zhejiang Univ Sci B Source Type: research
Hydrophobically modified chitin/halloysite nanotubes composite sponges for high efficiency oil-water separation.
Abstract
A high-performance oil-water separation device that built by environment-friendly materials is a promising strategy to solve water pollution problem. In this paper, we developed an oil-water separation system with chitin/halloysite nanotubes (C/HNTs) composites. C/HNTs were crosslinked by epichlorohydrin and freeze-dried, then a porous sponge was formed. The C/HNTs sponge was modified to be hydrophobic via immersing into bromohexadecane ethanol solution. The surface structure, mechanical properties, microstructure, oil absorption and oil-water separation ability of the C/HNTs sponge were investiga...
Source: International Journal of Biological Macromolecules - March 28, 2019 Category: Biochemistry Authors: Zhao X, Luo Y, Tan P, Liu M, Zhou C Tags: Int J Biol Macromol Source Type: research
Quantitation of free and modified Alternaria mycotoxins in European food products by LC-MS/MS
We report a food survey investigating 17 Alternaria mycotoxins in tomato sauce, sunflower seed oil and wheat flour. Matrix-dependent median concentrations of the most frequently studied toxins, namely alternariol (AOH), alternariol monomethyl ether (AME), tenuazonic acid, and tentoxin ranged between 1.2 and 6.6, 0.5–1.3, 66–161, and 0.1–0.5 ng/g. Additionally, the modified toxins AOH-3-sulfate (up to 2.1 ng/g) and AME-3-sulfate (up to 17.5 ng/g) were detected in 9% and 34% of tomato sauces accounting for 7–100% of their parent toxin concentrations. The barely studied perylene quinones ATX-I and ALP were deter...
Source: Food Control - March 21, 2019 Category: Food Science Source Type: research
Preparation of high-quality sunflower seed protein with a new chlorogenic acid hydrolase from Aspergillus niger.
CONCLUSIONS: A new ChlH was obtained and its feasibility as a CGA-removal tool to obtain high quality SSP was demonstrated.
PMID: 30734149 [PubMed - as supplied by publisher] (Source: Biotechnology Letters)
Source: Biotechnology Letters - February 8, 2019 Category: Biotechnology Authors: Zhang W, Liu Y, Hu M, Yang R Tags: Biotechnol Lett Source Type: research
A polyamidoamine-mediated competitive colorimetric assay based on gold nanoparticles for determining acid values in edible sunflower seed, corn and extra virgin olive oils
Publication date: Available online 6 February 2019Source: Food ChemistryAuthor(s): Yujun Guo, Xiao Liang, Junmin Bi, Rui Ling, Yuhao Jiang, Zhoufan Mou, Feng Huang, Weidong QinAbstractWe synthesized polyamidoamine (PAMAM) dendrimers and citrate-capped gold nanoparticles (AuNPs), and explored the applicability of the PAMAM/AuNP assay in determining total free fatty acid (FFA) contents in edible oils based on a competitive colorimetry, in which the PAMAM-triggered AuNP aggregation was suppressed by FFAs. The generation and concentration of PAMAMs, the chain lengths of FFAs as well as the concentration and pH of the backgroun...
Source: Food Chemistry - February 7, 2019 Category: Food Science Source Type: research
Conversion of Sunflower Seed Hulls, waste from edible oil production, into Valuable Products
Publication date: Available online 6 January 2019Source: Journal of Environmental Chemical EngineeringAuthor(s): Andrés I. Casoni, Victoria S. Gutierrez, María A. VolpeAbstractSunflower seed hulls are an abundant waste produced by the edible oil industry. Pyrolysis was assessed as a way of turning this material into a liquid rich in valuable products, as well as leading to densification of this voluminous waste. In pursuing this, raw and pre-treated hulls were subjected to fast pyrolysis in a vertical reactor, at 450 °C under 200 ml.min-1 of N2. Pre-treatments of sunflower seed hulls consist in washing the material ...
Source: Journal of Environmental Chemical Engineering - January 6, 2019 Category: Chemistry Source Type: research
Mercury adsorption to aged biochar and its management in China.
Abstract
Biochar is frequently applied for the reduction of mercury (Hg) migration in soil; however, most of the studies only focused on the adsorption capacity evaluation of fresh biochar. We investigated the Hg adsorption capacities of biochar prepared from wheat straw, corn straw, and sunflower seed shells. Biochar aging was simulated via natural aging, high-temperature aging, and freeze-thaw aging. The adsorption capacities of all the aged biochar were increased, and wheat straw biochar and seed shells biochar treated with high-temperature aging (wBC-Ha500 and sBC-Ha600) and corn straw biochar treated ...
Source: Environmental Science and Pollution Research International - December 19, 2018 Category: Environmental Health Authors: Zhang S, Yang X, Ju M, Liu L, Zheng K Tags: Environ Sci Pollut Res Int Source Type: research
Activation of plasma membrane H+-ATPases participates in dormancy alleviation in sunflower seeds
Publication date: Available online 18 December 2018Source: Plant ScienceAuthor(s): Linda De Bont, Elissa Naim, Delphine Arbelet-Bonnin, Qiong Xia, Emily Palm, Patrice Meimoun, Stefano Mancuso, Hayat El-Maarouf-Bouteau, François BouteauABSTRACTUsing various inhibitors and scavengers we took advantage of the size of sunflower (Helianthus annuus) seeds to investigate in vivo the effects of hormones, namely abscisic acid (ABA) and ethylene (ET), and reactive oxygen species (ROS) on the polarization of dormant (D) and non-dormant (ND) embryonic seed cells using microelectrodes. Our data show that D and ND seed cells present di...
Source: Plant Science - December 18, 2018 Category: Biology Source Type: research
Preparation of amino-functionalized magnetic biochar with excellent adsorption performance for Cr(VI) by a mild one-step hydrothermal method from peanut hull
Publication date: Available online 29 November 2018Source: Colloids and Surfaces A: Physicochemical and Engineering AspectsAuthor(s): Weiquan Cai, Jiahao Wei, Zhonglei Li, Yan Liu, Jiabin Zhou, Bowen HanAbstractAmino-functionalized magnetic biochar from wasted peanut hull (MPHC-HDA) with excellent adsorption properties for Cr(VI) was successfully prepared by a mild one-step hydrothermal method in the presence of iron chloride and hexamethylenediamine (HDA). The physicochemical properties of the peanut hull based biochar (PHC), HDA-modified PHC (PHC-HDA) and MPHC-HDA were comparatively characterized by XRD, SEM, FT-IR, VSM,...
Source: Colloids and Surfaces A: Physicochemical and Engineering Aspects - November 30, 2018 Category: Chemistry Source Type: research
The etiology of airway foreign bodies in children: analytical cohort study
Conclusions: The aspiration of FB in the respiratory tract is frequently met in children of 1-2 years old, with a major predominance of organic foreign bodies, usually sunflower seeds and nuts. (Source: European Respiratory Journal)
Source: European Respiratory Journal - November 19, 2018 Category: Respiratory Medicine Authors: Ivas, T., Rascov, V., Donos, V., Ciuhrii, O., Demcenco, S., Selevestru, R., Sciuca, S. Tags: Paediatric bronchology Source Type: research
Lactobacillus and dietary sunflower meal supplementation in layer diets: Effects on specific serum content and hydrogen sulfide concentration in layer manure
Publication date: Available online 12 November 2018Source: Research in Veterinary ScienceAuthor(s): K. Saksrithai, A.J. KingAbstractStudies show that in poultry houses, hydrogen sulfide (H2S) is present in a much higher concentration than its odor threshold of 10 ppb for humans and has a short-lived deleterious effect on White Leghorns at concentrations of 0.2% H2S. A possible way to reduce H2S emissions (often exhausted into the environment) is to decrease its concentration in manure by adding high fiber byproducts and probiotics in diets. A combination of probiotics (Lactobaccillus paracasei, Lactobaccillus plantarum, ...
Source: Research in Veterinary Science - November 14, 2018 Category: Veterinary Research Source Type: research
Hepatic transcriptome of the euryhaline teleost Japanese seabass (Lateolabrax japonicus) fed diets characterized by α-linolenic acid or linoleic acid
In conclusion, under the present experimental conditions, a high level of dietary α-linolenic acid tended to suppress lipid transport and protein biosynthetic processes in the liver of Japanese seabass at the gene expression level.Graphical abstractTo investigate the different effects of dietary α-linolenic acid (ALA) and linoleic acid (LA) on the euryhaline fish species Japanese seabass, a feeding trial followed by hepatic transcriptome assay was conducted. Compared to LA, ALA up-regulated transcription of 49 unigenes and down-regulated those of 311 unigenes, which were primarily enriched in pathways related to lipid tr...
Source: Comparative Biochemistry and Physiology Part D: Genomics and Proteomics - November 8, 2018 Category: Genetics & Stem Cells Source Type: research
