Tag: M.W=250-300

Panek, Michal G. published the artcileComparative analysis of clinical, physiological, temperamental and personality characteristics of elderly subjects and young subjects with asthma, Synthetic Route of 142-90-5, the main research area is LAMA SABA asthma animal behavior elderly.

Background: Asthma is a heterogeneous disease of a complex etiol. in which genetic, environmental and personality variables are important factors determining the development of complicated strategies related to coping with stress and temperament traits. Our thesis is that coping styles in asthmatic patients are modified by the environment (chronic inflammation and stress) which affects individual temperament traits in the course of time. Thus, patient age is one of factors which determine the clin. image of asthma and its natural history. The aim of the study was to evaluate the variables describing stress coping styles and temperament in young (18 to 35 years old) and elderly asthmatics (aged ≥60 years). A total of 200 patients, 104 elderly and 96 young asthmatics were enrolled in the study. Apart from medical examination, the following tests were performed in all subjects: the Formal Characteristics of Behavior- Temperament Inventory (FCB-TI), Coping Inventory for Stressful Situations (CISS), Beck Depression Inventory, State-Trait Anxiety Inventory, and Borg Rating of Perceived Exertion (RPE) Scale. Results: Elderly patients with asthma exhibited higher intensity of anxiety as a trait, a higher level of depression and experienced dyspnea, as well as higher levels of stress coping strategies such as Avoidance-Oriented Coping (AOC), Distraction Seeking (DS) and Social Diversion (SD) compared to young asthmatics. In elderly patients, Perseverance and Sensory Sensitivity traits have been observed to decline with the duration and development of asthma at later life stages as opposed to young asthmatics, in whom these temperament characteristics are elevated. Asthma is a heterogeneous disease of a complex etiopathogenesis that has a complex interplay with mental health. The present study confirms a relationship between age and stress coping strategies as well as temperament traits.

PLoS One published new progress about Asthma. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Synthetic Route of 142-90-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Di Raimondo, Domenico published the artcilePrevalence of arterial hypertension and characteristics of nocturnal blood pressure profile of asthma patients according to therapy and severity of the disease: the BADA study, Synthetic Route of 142-90-5, the main research area is nocturnal blood pressure arterial hypertension asthma; asthma; cardiovascular risk; essential hypertension; inhaled corticosteroid therapy; nocturnal dipping of blood pressure.

Background: several studies report an increased risk for asthmatic subjects to develop arterial hypertension and the relationship between these two diseases, frequently co-existing, still has some unclear aspects. Methods: The BADA (blood pressure levels, clin. features and markers of subclin. cardiovascular damage of asthma patients) study is aimed to evaluate the prevalence of the cardiovascular comorbidities of asthma and their impact on the clin. outcome. The main exclusion criteria were the presence of other respiratory diseases, current smoking, any contraindication to ambulatory blood pressure monitoring (ABPM). Results: The overall percentage of asthmatics having also hypertension was 75% (30 patients) vs. 45% (18 patients) of the control group (p: 0.012). Reduced level of FEV1 (but not inhaled steroid therapy) was associated to newly-diagnosed hypertension (p: 0.0002), higher day SBP levels (p: 0.003), higher day DBP levels (p: 0.03), higher 24 h-SBP levels (p: 0.005) and higher 24h-DBP levels (p: 0.03). The regression anal. performed taking into account sex, age, diabetes, fasting glucose, and body mass index confirms the independent role played by asthma: odds ratio (OR): 3.66 (CI: 1.29-11.1). Conclusions: hypertension is highly prevalent in asthma; the use of ABPM has allowed the detection of a considerable number of unrecognized hypertensives.

International Journal of Environmental Research and Public Health published new progress about Asthma. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Synthetic Route of 142-90-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Kim, So Young published the artcileThe associations of previous influenza/upper respiratory infection with COVID-19 susceptibility/morbidity/mortality: a nationwide cohort study in South Korea, Quality Control of 142-90-5, the main research area is influenza upper respiratory infection COVID19 morbidity prognosis.

We aimed to investigate the associations of previous influenza/URI with the susceptibility of COVID-19 patients compared to that of non-COVID-19 participants. A nationwide COVID-19 cohort database was collected by the Korea National Health Insurance Corporation. A total of 8,070 COVID-19 patients (1 Jan. 2020 through 4 June 2020) were matched with 32,280 control participants. Severe COVID-19 morbidity was defined based on the treatment histories of the intensive care unit, invasive ventilation, and extracorporeal membrane oxygenation and death. The susceptibility/morbidity/mortality associated with prior histories of 1-14, 1-30, 1-90, 15-45, 15-90, and 31-90 days before COVID-19 onset were analyzed using conditional/unconditional logistic regression. Prior influenza infection was related to increased susceptibility to COVID-19 (adjusted odds ratio [95% confidence interval] = 3.07 [1.61-5.85] for 1-14 days and 1.91 [1.54-2.37] for 1-90 days). Prior URI was also associated with increased susceptibility to COVID-19 (6.95 [6.38-7.58] for 1-14 days, 4.99 [4.64-5.37] for 1-30 days, and 2.70 [2.55-2.86] for 1-90 days). COVID-19 morbidity was pos. associated with influenza (3.64 [1.55-9.21] and 3.59 [1.42-9.05]) and URI (1.40 [1.11-1.78] and 1.28 [1.02-1.61]) at 1-14 days and 1-30 days, resp. Overall, previous influenza/URI did not show an association with COVID-19 mortality. Previous influenza/URI histories were associated with increased COVID-19 susceptibility and morbidity. Our findings indicate why controlling influenza/URI is important during the COVID-19 pandemic.

Scientific Reports published new progress about Asthma. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Quality Control of 142-90-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Qin, Jinlv published the artcileBenefits of LAMA in patients with asthma-COPD overlap: A systematic review and meta-analysis, Category: esters-buliding-blocks, the main research area is meta analysis COPD asthma LAMA; Asthma-COPD overlap; Efficacy; LAMA; Meta-analysis.

Meta-anal. of to determine the efficacy of long-acting muscarinic antagonist (LAMA) in patients with asthma-COPD overlap (ACO) was conducted. A systematic search was made of PubMed, Embase, Cochrane Library, and clinicaltrials.gov, without language restrictions. Randomized controlled trials (RCTs) on treatment of ACO with LAMA, compared with placebo or blank, were reviewed. Six RCTs (enrolling 1151 participants) met the inclusion criteria. LAMA showed significant effects on forced expiratory volume in 1 s (FEV1) (WMD 98.31 mL, 95% CI 94.32 to 102.30 mL), forced vital capacity (FVC) (WMD 128.00 mL, 95% CI 121.89 to 134.12 mL), peak expiratory flow (PEF) (WMD 20.60 L/min, 95% CI 19.90 to 21.29 L/min), and rescue medicine use (WMD -0.67 puffs/day, 95% CI -1.11 to -0.23 puffs/day). The addition of LAMA significantly improved lung function and rescue medicine use in patients with asthma-COPD overlap.

Clinical Immunology (Amsterdam, Netherlands) published new progress about Asthma. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Fan, Guangsen published the artcileImproving ethyl acetate production in Baijiu manufacture by Wickerhamomyces anomalus and Saccharomyces cerevisiae mixed culture fermentations, Quality Control of 41114-00-5, the main research area is Wickerhamomyces Saccharomyces mixed culture fermentation ethyl acetate.

Et acetate content has strong influence on the style and quality of Baijiu. Therefore, this study investigated the effect of Saccharomyces cerevisiae Y3401 on the production of Et acetate by Wickerhamomyces anomalus Y3604. Anal. of cell growth showed that Y3401 influences Y3604 by nutrient competition and inhibition by metabolites, while the effect of Y3604 on Y3401 was mainly competition for nutrients. Mixed fermentation with two yeasts was found to produce more Et acetate than a single fermentation The highest yield of Et acetate was 2.99 g/L when the inoculation ratio of Y3401:Y3604 was 1:2. Synergistic fermentation of both yeasts improved Et acetate production and increased the content of other flavor compounds in liquid and simulated solid-state fermentation for Baijiu. Saccharomyces cerevisiae had a pos. effect on Et acetate production in mixed culture and provides opportunities to alter the aroma and flavor perception of Baijiu.

BioMed Research International published new progress about Baijiu. 41114-00-5 belongs to class esters-buliding-blocks, name is Ethyl pentadecanoate, and the molecular formula is C17H34O2, Quality Control of 41114-00-5.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Chen, Xiao published the artcileLipase-catalyzed modification of milk fat: A promising way to alter flavor notes of goat milk products, Name: Ethyl pentadecanoate, the main research area is lipase milk fat modification fatty acid synthesis.

The rancid and tart off-flavor of goat milk limits the popularization of its associated products. In this study, a two-step enzymic catalysis method was proposed to generate new aromatic notes that could alter the neg. flavor perception of goat milk products. The goat milk fat was first hydrolyzed to prepare fatty acids (FFAs) as substrates, and then esterification was carried out for the synthesis of esters with pleasant notes. In the first step, the FFAs were sufficiently released, accounting for 97.5% of the volatile fraction. In the final reconstituted goat milk product, esters with sweet, floral, and fruity-like notes occupied more than 65% of the total volatile compounds, while the abundance of fatty acids characterized by unpleasant odor decreased by 75%. Especially, 4-methyloctanoic acid, one of the FFAs responsible for the “”goaty”” flavor, was not detected under the substrate molar ratio of 0.4. Moreover, the performance of four com. lipases was investigated and compared during the first step. Lipozyme TL IM was the most efficient in the catalysis of lipid hydrolysis at 60°C and pH 8.0. The two-step lipase-catalyzed product provided a sweet and fruity note to goat milk products and reduced the intensity of the unpleasant “”goaty”” flavor.

LWT–Food Science and Technology published new progress about Candida. 41114-00-5 belongs to class esters-buliding-blocks, name is Ethyl pentadecanoate, and the molecular formula is C17H34O2, Name: Ethyl pentadecanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Zang, Jinhong published the artcileIdentification of characteristic flavor and microorganisms related to flavor formation in fermented common carp (Cyprinus carpio L.), Category: esters-buliding-blocks, the main research area is flavor microorganism fermented Cyprinus carpio; Cyprinus carpio; Fermented fish; Flavor; Metabolic network; Metagenomic; Microorganisms.

Microbial metabolism is crucial for the flavor development of traditional Suanyu. A total of 21 characteristic volatile compounds of Suanyu were identified according to GC-MS combined with GC-O anal. HCA results indicated that the whole fermentation process could be divided into three stages: raw material (fresh), initial fermentation (0-2 wk) and the late fermentation (2-4 wk). Moreover, nine flavor markers in different fermentation stages were revealed using the OPLS-DA model and VIP values. Furthermore, metagenomic sequencing was used to analyze the possible formation pathways of the characteristic flavor compounds and identify the key microorganisms related to flavor formation at the gene level. The top 10 bacterial genera associated with flavor formation were Staphylococcus, Enterococcus, Vibrio, Kocuria, Lactobacillus, Macrococcus, Streptococcus, Enterobacter, Lactococcus and Pediococcus, accounting for large parts of flavor formation of fermented Suanyu. This study is helpful to elucidate the different metabolic roles of microorganisms in flavor formation during fermentation

Food Research International published new progress about Candida. 41114-00-5 belongs to class esters-buliding-blocks, name is Ethyl pentadecanoate, and the molecular formula is C17H34O2, Category: esters-buliding-blocks.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Zhang, Man published the artcileEffects of inoculation protocols on aroma profiles and quality of plum wine in mixed culture fermentation of Metschnikowia pulcherrima with Saccharomyces cerevisiae, Formula: C17H34O2, the main research area is Metschnikowia Saccharomyces mixed culture fermentation plum wine aroma quality.

This study describes the first report of application of Metschnikowia pulcherrima combined with Saccharomyces cerevisiae to ferment plum wine. Variable factors studied include inoculum ratio (M. pulcherrima: S. cerevisiae = 10:1, 1:1, and 1:10), as well as simultaneous vs. sequential inoculation, with tested trials spanning 10:1sim, 1:1sim, 1:10sim, 10:1seq, 1:1seq, and 1:10seq, resp. The yeast growth kinetics, physicochem. characteristics, organic acids, aroma profiles, and sensory evaluation were investigated. During fermentation, M. pulcherrima growth was inhibited by S. cerevisiae. Compared to each simultaneous analog, sequential fermentation which was inoculated with the same yeast ratio consumed less sugar and produced lower ethanol content. Organic acids in each sample varied with the use of different inoculation strategies. A total of 48 aroma compounds were quantified, and 1:1seq sample was observed to be abundant in esters and terpenes but relatively low in higher alcs., fatty acids, and phenols. Sensory evaluation of the variously-prepared samples revealed that 1:1seq sample featured a highly intense ‘global aroma’, ‘fruity’, and ‘alc.’ notes. PCA illustrated that different inoculation protocols of mixed culture fermentation influenced plum wine aroma except 1:10sim. Ultimately, 1:1seq was identified as a promising candidate for production of high-quality plum wine.

LWT–Food Science and Technology published new progress about Acidity. 41114-00-5 belongs to class esters-buliding-blocks, name is Ethyl pentadecanoate, and the molecular formula is C17H34O2, Formula: C17H34O2.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Pettinelli, Stefano published the artcileEffect of flotation and vegetal fining agents on the aromatic characteristics of Malvasia del Lazio (Vitis vinifera L.) wine, Application of Ethyl pentadecanoate, the main research area is Vitis wine vegetal fining flotation; Malvasia del Lazio; fining agents; flotation; vegetal proteins; volatile organic compounds.

BACKGROUND : Flotation is a process to reduce the must turbidity after grape pressing. The use of fining agents to reduce the polyphenol content is essential for white wine, but their impact on volatile compounds must be considered. Malvasia del Lazio juice (Vitis vinifera L.) was treated before flotation with animal gelatin (GEL), legume protein plus chitin (LEGCHIT), and legume protein plus yeast extract (LEGYEAST). The clarification efficiency, total polyphenols, and total proteins were determined in the grape must before and after flotation, as well as the volatile composition and sensory characteristics of the resulting wines. RESULTS : The LEGCHIT trial was the most efficient, it being the fastest and achieving the lowest turbidity values. The GEL trial was the slowest, showing grape must turbidity values similar to LEGYEAST but also the highest total protein content. Furthermore, LEGCHIT wines were appreciated by panelists for their greater body and reduced astringency perception. CONCLUSION : The use of legume protein combined with chitin as a fining agent for flotation is advantageous in terms of clarification efficiency for grape must. Furthermore, the wines obtained showed high perceived global quality, even though a higher loss (38% and 27% resp. for LEGYEAST and LEGCHIT) of VOCs occurred when compared with gelatin. 2020 Society of Chem. Industry.

Journal of the Science of Food and Agriculture published new progress about Acidity. 41114-00-5 belongs to class esters-buliding-blocks, name is Ethyl pentadecanoate, and the molecular formula is C17H34O2, Application of Ethyl pentadecanoate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics

Erck, Robert A. published the artcileInvestigations of Polymethacrylate Tribochemical Films Using X-Ray Spectroscopy and Optical Profilometry, Recommanded Product: Dodecyl 2-methylacrylate, the main research area is polymethacrylate tribochem film X ray spectroscopy optical profilometry.

This study investigates the elemental composition and surface morphol. of solid tribochem. films formed on steel surfaces. The reversible addition-fragmentation chain transfer (RAFT) method was used to synthesize nine different metal-free polymers, which were blended into com. base oils. The polymers were either homopolymers of dodecyl methacrylate and ethylhexyl methacrylate or were co-polymers of these monomers with six polar monomers. After tribol. testing at 100°C using the ball-on-flat geometry, the resulting tribochem. films were imaged using SEM and optical microscopy. The resulting tribochem. films have thicknesses around 50-100 nm. Two of the films corresponding to small (P1-imidazole-containing copolymer) and large (P3-less polar homopolymer) wear were cross-sectioned using focused ion beam and analyzed for elemental composition using energy-dispersive X-Ray mapping. Oxygen and nitrogen enrichment was observed, consistent with the relative chem. composition of the precursor polymers. Transmission electron microscopy evidence suggests that at the worn surface, some organic elements penetrate or are mixed into the steel substrate giving an interlocking appearance. The two samples examined with TEM showed that P1 tribofilm is diffused or mixed with the steel substrate more so than P3, suggesting a stronger affinity and contact during tribofilm formation.

Tribology Letters published new progress about Friction. 142-90-5 belongs to class esters-buliding-blocks, name is Dodecyl 2-methylacrylate, and the molecular formula is C16H30O2, Recommanded Product: Dodecyl 2-methylacrylate.

Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics