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fattyacidesters, etc ; fermentation; food chemistry; fungi; liquid chromatography; mass spectrometry; positional isomers; regioselectivity; tea; Show all 9 Subjects
Abstract:
... Branched fatty acid ester of hydroxy fatty acid (FAHFA) is a class of natural lipid with important biological functions. In this study, we first profiled natural-origin FAHFAs in different teas using the chemical labeling-assisted liquid chromatography-mass spectrometry method. Consequently, we observed rich molecular diversity of FAHFAs with multiple regioisomers in teas. Additionally, the FAHFA ...
... A new, highly modified fatty acid ester, funitatin A (1), was isolated from the Yellow River wetland-derived fungus Talaromyces funiculosus HPU-Y01 cultivated with the histone deacetylase inhibitor suberoylanilide hydroxamic acid (SAHA). The structure of 1 was established by analysis of NMR and HRESIMS data. Compound 1 featured a rare dimeric cyclopaldic acid structure and showed promising antimic ...
... Flowers of tuberose (Polianthes tuberosa L.) are usually fragrant and are cultivated commercially to meet the demand of both loose and cut flower applications. This in turn generates huge floral wastes after their utilization in decoration and rituals. In this work we aim to explore waste flowers to isolate floral concrete as by-product for possible utility in skincare products. Such attempt of co ...
fattyacidesters, etc ; Pleurotus ostreatus; ceramides; discriminant analysis; food research; glycerophosphates; lipidomics; liquid chromatography; mass spectrometry; nutritive value; principal component analysis; sphingomyelins; Show all 12 Subjects
Abstract:
... In this paper, for the first time a lipidomic analysis on Pleurotus ostreatus species was performed by liquid chromatography quadrupole time-of-flight mass spectrometry (LC/MS Q-TOF). Twenty-seven lipid classes, including polar and non-polar lipid classes, were detected. Free fatty acids (FA) were the predominant fraction (>57%), followed by fatty acid ester of hydroxyl fatty acid and ceramide. C1 ...
... As a potent antioxidant with numerous health benefits, lycopene finds multiple applications. Among the geometric isomers of lycopene, the Z‐isomers have greater bioavailability than the all‐E‐isomer but are less stable and hence, less suitable for practical applications. Herein, highly stable Z‐isomer‐rich lycopene nanodispersions are produced through the thermal isomerization of (all‐E)‐lycopene ...
Edgardo Jonathan Suarez-Dominguez; Arturo Palacio-Perez; Josue Francisco Perez-Sanchez; Alejandro Rodriguez-Valdes; Susana Gonzalez-Santana; Elena Izquierdo-Kulich
fattyacidesters, etc ; asphaltenes; petroleum; semi-empirical models; viscosity; Show all 5 Subjects
Abstract:
... Asphaltenes and paraffin are considered the molecules present in heavy crude oils that tend to form aggregates that cause high viscosity values. Understanding the molecular interactions occurring in such aggregation phenomena is essential to apply flow enhancers that effectively reduce viscosity and positively impact power requirements in production fields. In this sense, this work develops a meth ...
fattyacidesters, etc ; acetylcholinesterase; aerial parts; cholinesterase; literature; plant biochemistry; spectral analysis; unsaturated fatty acids; Show all 8 Subjects
Abstract:
... Two new unsaturated fatty acid esters (1 and 2) and five new unsaturated fatty acids (4–8), together with two known analogs (3 and 9) were isolated from the aerial parts of Lycopodiastrum casuarinoides. Their structures were unambiguously elucidated by obtaining extensive spectroscopic data and comparing them with data in the literature. The absolute configurations of 1 and 2 were established by a ...
fattyacidesters, etc ; alpha-chlorohydrin; carboxylic ester hydrolases; fatty acids; glycidol; humans; markets; mutagens; phosphates; pollutants; Show all 10 Subjects
Abstract:
... Glycidyl fatty acid esters (GEs), which are the main pollutant in processed oils, are potential mutagens or carcinogens. 3-Monochloropropane-1,2-diol fatty acid esters (3-MCPDEs) are also well-known food processing contaminants. 3-MCPDEs are believed to be a precursor to GEs in foodstuffs. In vivo, lipase breaks down the phosphate ester of GEs and 3-MCPDEs to produce glycidol and 3-MCPD, respectiv ...
fattyacidesters, etc ; biomass; fossil fuels; green chemistry; lignocellulose; reaction mechanisms; short chain fatty acids; value added; Show all 8 Subjects
Abstract:
... As one of the substitutes for traditional fossil energy, biomass resource has attracted extensive attention. Methyl levulinate (ML) is a short chain fatty acid ester, which is an important green and high value-added chemical derived from biomass. Starting from a few different model compounds, this review summarized a variety of process methods for preparing ML, pointed out the best reaction condit ...
fattyacidesters, etc ; catalysts; catalytic activity; food chemistry; ion exchange; knowledge; mass transfer; selectivity (chemistry); sugars; surfactants; synthesis; transesterification; Show all 12 Subjects
Abstract:
... A strongly basic ion-exchange resin catalyst was reported to exhibit a high catalytic activity in transesterification to produce a bio-based surfactant, sugar ester under mild condition. However, the side-reactions to decompose the reactant and the product were found to occur. This study was aimed to improve the selectivity of sugar ester synthesis by newly focusing on the basicity of the resin. A ...
... Monsonia angustifolia is traditionally used to treat anthrax, heartburn, diarrhea, eye infections and hemorrhoids. Dodonaea angustifolia plants are frequently used as a treatment for dental pain, microbial infections and jungle fever. The two plant species were selected due to the presence of secondary metabolites such as, coumarins, flavonoids, saponins and polyphenolics in the crude extracts whi ...
fattyacidesters, etc ; beta-cyclodextrin; chemical reactions; organosilicon compounds; Show all 4 Subjects
Abstract:
... A novel cyclodextrin molecular tube with one fully modified and one unmodified end was facilely synthesized by selective desilylation of a 6-O-tert-butyldimethylsilylated β-cyclodextrin dimer possessing multiple linkers. This molecular tube showed a selective inclusion ability toward cis-unsaturated fatty acid esters by utilizing the asymmetric cylindrical nanocavity. ...
fattyacidesters, etc ; Artemia; Phytolacca; death; methanol; toxicity; triterpenoids; Show all 7 Subjects
Abstract:
... The methanol extract form the leaves of Phytolacca icosandra L., afforded the unprecedented artificial triterpenoid fatty acid ester 1 derived from the new natural triterpenoid phytolaccagenic acid 3-O-myristate (1a), along with the three known triterpenoids serjanic, acinosolic and phytolaccagenic acid (2 – 4). Their structures were stablished by HR-EI-MS, 1D and 2D NMR techniques. The possible m ...
fattyacidesters, etc ; coconut oil; crystallization; deformation; droplets; emulsions; flocculation; homogenization; hydrocolloids; ice cream; lipid content; pasteurization; protein composition; sucrose; surface proteins; whey protein; Show all 16 Subjects
Abstract:
... Interfacial compositions and fat crystals are of importance for determining the partially crystalline fat globule stability. The objective of this work was to investigate the effects of different whey-to-milk protein ratios and sucrose fatty acid ester (SE) addition on the coconut oil crystallization behavior and whipped-frozen emulsion stability. Surface protein load shifted to lower values with ...
... Only a limited number of contact herbicides exist in agricultural production. While systemic herbicides are more efficient also at suboptimum spray coverage with long-lasting weed control, contact herbicides provide several advantages. There is no translocation to fruits or roots of plantation and other crop, low risk for resistance development, and minor risk for spray-drift damage. Besides, synt ...
fattyacidesters, etc ; DNA libraries; Monascus purpureus; biocatalysts; fermentation; flavor; food chemistry; food industry; genome; hydrolases; octanoic acid; short chain fatty acids; synthesis; transcriptome; ultrasonics; Show all 15 Subjects
Abstract:
... Short-chain fatty acid esters are important flavor chemicals in Chinese traditional fermented Baijiu. Monascus purpureus was recognized as an important microorganism contributing to ester synthesis. However, the molecular basis for ester synthesis was still lacking. The present work combined genome sequencing, transcriptome sequencing, gene library construction, and enzyme engineering to discover ...
fattyacidesters, etc ; Lewis acids; activation energy; aldehydes; alloys; catalysts; catalytic activity; chemoselectivity; decarboxylation; dissociation; energy; hydrogen; renewable energy sources; soybean oil; soybeans; stearic acid; synergism; Show all 17 Subjects
Abstract:
... An efficient and highly selective decarboxylation catalyst has been developed for the production of diesel-range alkanes from the conversion of higher aliphatic esters under mild reaction conditions. Using methyl stearate as a model substrate, the NiCu/Al₂O₃ bifunctional catalysts derived from layer double hydroxide (LDHs) precursors showed excellent catalytic performance with 100% conversion and ...
fattyacidesters, etc ; case studies; data collection; decision support systems; discriminant analysis; least squares; long chain fatty acids; market value; medium chain fatty acids; models; volatile compounds; Show all 11 Subjects
Abstract:
... Baijiu is a highly-valued traditional Chinese distilled alcoholic liquor and maturation markedly improves its sensory qualities and market value. Identification of age-markers is challenging because of the complexity of the endogenous chemical profile and the absence of exogenous components added during maturation. Here, freshly-distilled raw Lu-flavor Baijiu samples were stored for two years and ...
fattyacidesters, etc ; absorption; acetates; active ingredients; brain; emulsifiers; ethanol; glycerol; gum arabic; mechanism of action; oral administration; principal component analysis; root extracts; sedatives; traditional medicine; water solubility; Show all 16 Subjects
Abstract:
... Valeriana fauriei root (VF) is a crude drug registered in the Japanese Pharmacopeia 17th Edition and a known substitute for V. officinalis (VO). Although VO has been pharmacologically evaluated for its sedative effects and mechanism of action, data regarding VF remain scarce.We compared the binding affinity of VF and VO extracts, as well as examined the active ingredients in the VF extract, on flu ...
... Ceropegia media is an endemic and endangered plant as its propagation through seeds is unreliable due to low germination, slow growth and seedling decay under natural conditions. Also, tubers of this plant are edible serving as carbohydrate source with medicinal values leading to severe population decline in the natural habitat. To provide a sustainable solution, an efficient in vitro propagation ...