Ethers are a class of organic compounds that contain an ether group—an oxygen atom connected to two alkyl or aryl groups. 530-59-6, formula is C11H12O5, Name is 3,5-Dimethoxy-4-hydroxycinnamic acid.They have the general formula R–O–R′, where R and R′ represent the alkyl or aryl groups. Name: 3,5-Dimethoxy-4-hydroxycinnamic acid.
Marasinghege, Chalani;Broadfoot, Ross;Bottle, Steven;Bartley, John;Doherty, William O. S.;Rackemann, Darryn W. research published 《 Investigation on the effect of the heating surface temperature of 1st evaporator on sucrose loss and the degradation of sugarcane juice constituents》, the research content is summarized as follows. To enable more energy efficient sugar production from sugarcane, higher process temperatures in the 1st evaporator is typically utilized, as this allows higher temperature bleed vapors to be used rather than process steam for other heating duties in the factory. This invariably increases juice degradation and the temperature difference (ΔT) between the heated surface and juice can be even higher where process steam used for heating is superheated. This study investigated the effect of high surface temperatures (139-168°C) and residence times (0-60 min) on both factory and synthetic juice degradation using a specially designed laboratory evaporator rig. The results show that ΔT is inversely proportional to the heat transfer coefficient At up to 148°C and short residence time, there were minor differences in the juice degradation profile. However, at higher temperatures there were significant sucrose loss (≤2.5%), amino acid degradation, lignin (associated with fiber in juice) depolymerization to hydroxycinnamic acids, isomerization of trans-to cis-aconitic acid, and the formation of alcs. Strategies to minimize juice degradation in evaporators are highlighted.
Name: 3,5-Dimethoxy-4-hydroxycinnamic acid, 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