Ethers lack the hydroxyl groups of alcohols. Without the strongly polarized O―H bond, ether molecules cannot engage in hydrogen bonding with each other. 530-59-6, formula is C11H12O5, Name is 3,5-Dimethoxy-4-hydroxycinnamic acid. Ethers do have nonbonding electron pairs on their oxygen atoms, however, and they can form hydrogen bonds with other molecules (alcohols, amines, etc.) that have O―H or N―H bonds. Category: ethers-buliding-blocks.
Cavalcante, Atacy Maciel de Melo;de Melo, Anely Maciel;da Silva, Acsa Victoria Ferreira;Neto, Genesio Jose da Silva;Barbi, Rafaela Cristina Turola;Ikeda, Monica;Silva, Gisela Benatti;Steel, Caroline Joy;Silva, Osvaldo Soares da research published 《 Mesquite (Prosopis juliflora) grain flour: New ingredient with bioactive, nutritional and physical-chemical properties for food applications》, the research content is summarized as follows. Mesquite (Prosopis juliflora) is a pod found in the semiarid Northeast region of Brazil. It is widely used as livestock feed and its byproduct (the grain) has potential for human food. Thus, this article aims was to obtain flour from mesquite grains under different drying temperatures (50, 60, and 70°C) and classify them by their phys.-chem., microstructural, technol., antioxidant, bioactive, and pasting properties. Both the mesquite grain and the mesquite grain flour showed a high amount of proteins and low-fat content. Analyses on morphol. and viscosity indicated the presence of starch. Among the temperatures studied, the flour dried at 60°C presented the best results for the capacity of water and oil absorption, antioxidant activities, and total phenolic compounds Seventeen compounds were detected by chromatog., with kaempferol, catechin, and quinine being the most abundant. This confirms the potential of mesquite flour as a relevant source of proteins and phenolic compounds for food products.
Category: ethers-buliding-blocks, Sinapinic acid is a chemical compound that is the dihydroxybenzoic acid derivative of sinapic acid. It has been shown to have anti-inflammatory properties in vitro and in vivo. Sinapinic acid inhibits the activity of various enzymes, such as cyclooxygenase (COX), lipoxygenase (LOX), and 5-lipoxygenase-activating protein (FLAP). It also decreases levels of adhesion molecules and downregulates inflammatory response genes. Sinapinic acid has been shown to reduce inflammation by inhibiting the formation of proinflammatory mediators, such as prostaglandin E2 or leukotriene B4, in endothelial cells and mammary epithelial cells.
Sinapic acid is a phenylpropanoid hydroxycinnamic acid with diverse biological activities. Sinapic acid inhibits collagen-induced human platelet aggregation by up to 70% in vitro (IC50 = 1.03 mM). It scavenges 2,2-diphenyl-1-picrylhydrazyl (DPPH; ) and 2,2′-azino-bis-(3-ethylbenzothiazoline-6-sulfonate) (ABTS) free radicals with IC50 values of 8.3 and 5.4 μg/ml, respectively. Sinapic acid (200 μM) reduces colony formation of SW480 human colon carcinoma cells by 4-fold. It also inhibits colony formation of E. coli, S. enteritidis, and S. aureus on agar (MICs = 2.2, 2, and 1.8 mM, respectively). In vivo, sinapic acid (4 mg/kg, p.o.) increases the time spent in the open arms of the elevated plus maze by approximately 15% in mice, an effect that can be blocked by the GABAA receptor antagonists flumazenil and bicuculline. Sinapic acid is also commonly used as a matrix in protein mass spectrometry.
Sinapic acid analytical standard provided with w/w absolute assay, to be used for quantitative titration.
Sinapic acid is an hydroxycinnamic acid derivative that occurs naturally in Brassicaceae species.
cis-Sinapic acid, also known as cis-sinapate or synapitic acid, belongs to the class of organic compounds known as hydroxycinnamic acids. Hydroxycinnamic acids are compounds containing an cinnamic acid where the benzene ring is hydroxylated. cis-Sinapic acid is considered to be a practically insoluble (in water) and relatively neutral molecule. Within the cell, cis-sinapic acid is primarily located in the cytoplasm. Outside of the human body, cis-sinapic acid can be found in common pea and pulses. This makes cis-sinapic acid a potential biomarker for the consumption of these food products.
Cis-sinapic acid is a 3-(4-hydroxy-3,5-dimethoxyphenyl)prop-2-enoic acid in which the double bond has cis-configuration. It has been isolated from the shoots of alfalfa. It has a role as a plant metabolite., 530-59-6.
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem