Carotenoids constitute a large group of lipophilic pigments whose health-promoting benefits have been widely recognized. Hydroxy-containing carotenoids can be found in both free form or esterified with fatty acids in several plant matrices, but the native carotenoid profile is overall poorly exp...

The carotenoid profiles of citrus fruit have been well studied, but knowledge about the xanthophylls esters pattern is more limited. In this study, the native carotenoid profiles of mandarin and orange juices were studied. Xanthophylls in oranges were esterified with lauric, myristic, palmitic a...

Isobutyl palmitate was synthesized by the esterification of palmitic acid and isobutanol with pyridine n-butyl bisulfate ionic liquid as the catalyst in a self-designed reactor. The kinetics of the esterification and cold flow properties of biodiesel were also studied. The optimal reaction condi...

The performance of three fibres for the headspace solid-phase microextraction (SPME) of di-2-ethylhexyl adipate (DEHA) and eight phthalates in water was investigated systematically under different extraction conditions. Good responses on the 65 μm polydimethylsiloxane/divinylbenzene (PDMS/DVB) ...

Acute toxicity studies in rats and mice and a short-term feeding study in rats have been carried out on dialkyl 79 adipate. Diarrhoea was the only effect seen in mice after administration of single doses of up to 20 g/kg intraperitoneally to rats and mice and orally to rats. The oral LD50 in mic...

An analytical technique for the measurement of low levels (0.1–3.0%) of N,N′-ethylenebisstearamide (EBS) and N,N′-ethylenebisoleamide (EBO) in polymeric matrices has been developed. The method involves reaction of the secondary bis-amides with trifluoroacetic anhydride (TFAA) followed by high...

Poly(lactide)/halloysite nanotubes (PLA/HNT) nanocomposites with crystalline matrix were obtained by cold crystallization and examined. Neat HNT and HNT treated with N,N′- ethylenebis(stearamide) (EBS) were used as nanofillers. Reference materials, PLA and PLA/EBS blend, prepared in the same wa...

Amorphous polylactide/halloysite nanotube (PLA/HNT) nanocomposites were prepared and examined. Neat HNT and HNT treated with N,N'- ethylenebis(stearamide) (EBS) were used as nanofillers. The role of HNT and/or EBS content on the cold crystallization of amorphous PLA matrix, HNT dispersion, ...

Phthalates as well as di-(2-ethylhexyl) adipate (DEHA) are used as plasticizers in diverse applications and are of toxicological concern.The study was conducted with a study population of 25 German subjects aged between 15 and 21 months. Overall, 16 phthalates and DEHA were measured by gas chrom...

Fourier transform (FT-) Raman spectroscopy excited with a 1064 nm laser can be used to determine the content of plasticizers in commercial flexible poly vinyl chloride (PVC) products. Our previous study [T. Nørbygaard, R.W. Berg, Analysis of phthalate ester content in PVC plastics by means of FT...

Isopropyl myristate (IPM) is a widely used penetration enhancer in pharmaceutical formulations, however, its mechanism of action on a molecular scale is still not completely understood. Previous work using a quaternary Stratum Corneum (SC) lipid model in bulk suggested the incorporation of isopr...

The objective of the present study was to investigate the effect of isopropyl myristate (IPM) on the in vitro permeation of testosterone through human cadaver skin from carbopol gels. Six testosterone gel formulations were prepared using different IPM contents of 0%, 0.4%, 0.7%, 1%, 2%, and 3%. ...

Isopropyl myristate finds many applications in food, cosmetic and pharmaceutical industries as an emollient, thickening agent, or lubricant. Using a homogeneous reaction phase, non-specific lipase derived from Candida antartica, marketed as Novozym 435, was determined to be most suitable for the...

Hydrogen peroxide (H2O2) can be produced in mitochondria and plays a significant role in physiological metabolism. Overproduction of H2O2 is a hallmark of many diseases. Therefore, it is very important to develop a highly sensitive method for detecting H2O2 both in vivo and in vitro. Previously ...

Moderate chemical pretreatment to increase the energy density and improve of chemical components, also called preconversion, is an emerging strategy to secure feedstock supplies in biorefinery systems. This study investigates the alkaline hydrogen peroxide (AHP) preconversion of softwood for its...

SummaryReactive oxygen species (ROS) and downstream products of lipid oxidation are emerging as important secondary messengers in tissue homeostasis. However, their regulation and mechanism of action remain poorly studied in vivo during normal development. Here, we reveal that the fine regulatio...

Alkaline hydrogen peroxide (AHP) was first introduced in 1984. Its ability to selectively attack carbonyl and ethylene groups is proven to enhance the delignification process of lignocellulosic biomass. The capabilities of AHP in dissociating the recalcitrant matrix of biomass indicate its poten...

Alzheimer’s disease (AD), usually characterized by progressive deteriorates of intellectual and social functions, memory loss and cognitive impairment, is symptomatized by the neurotoxic effect of oligomers of amyloid beta (Aβ). In this study, the activities of N-acetyl chitooligosaccharides (...

Hydrogen peroxide (H2O2), as an important biomolecule, is involved in various physiology and pathologic processes such as cellular signal transduction, host defense, and pathogen invasion. Thus, convenient and efficient detection of H2O2 in living organisms is of paramount significance and has d...

Stress-related psychiatric disorders are mental conditions that affect mood, cognition and behavior and arise because of the impact of prolonged stress on the central nervous system (CNS). Acetyl-L-carnitine (ALC) is an acetyl ester of L-carnitine that easily crosses the blood-brain barrier and ...