Other Phenolic Compounds
DMSO : 125 mg/mL (310.44 mM; Need ultrasonic)
504.3ºC at 760 mmHg
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provides coniferyl ferulate(CAS#:119-13-1) MSDS, density, melting point, boiling point, structure, formula, molecular weight etc. Articles of coniferyl ferulate are included as well.>> amp version: coniferyl ferulate
High‐risk populations (defined before screening was done, mainly due to advanced maternal age of 35 years or more, or previous pregnancies affected with Down’s syndrome) showed lower detection rates compared to routine screening populations at a 5% FPR. Women who miscarried in the over 35 group were more likely to have been offered an invasive test to verify a negative screening results, whereas those under 35 were usually not offered invasive testing for a negative screening result. Pregnancy loss in women under 35 therefore leads to under‐ascertainment of screening results, potentially missing a proportion of affected pregnancies and affecting test sensitivity. Conversely, for the NT, PAPP‐A, free ßhCG and maternal age test strategy, detection rates and false positive rates increased with maternal age in the five studies that provided data separately for the subset of women aged 35 years or more.
δ-Tocopherol Effect on Endocytosis and Its Combination with Enzyme Replacement Therapy for Lysosomal Disorders: A New Type of Drug Interaction?
Rachel L Manthe 1, Jeffrey A Rappaport 1, Yan Long 1, Melani Solomon 1, Vinay Veluvolu 1, Michael Hildreth 1, Dencho Gugutkov 1, Juan Marugan 1, Wei Zheng 1, Silvia Muro 2
A method was developed to simultaneously determine eight bioactive compounds in edible oil based on ultrasound-assisted saponification, liquid-liquid extraction and liquid chromatography coupled with tandem mass spectrometry. Central composite design was employed to optimize ultrasonic temperature and time of saponification. Sample treatment was conducted by ultrasound-assisted saponification at temperature of 75 °C for 40 min. Limits of detection and limits of quantification ranged from 2.0 to 3.2 and from 6.1 to 10.0 ng/mL, respectively. Linear correlations were obtained (R2 > 0.99) and the recoveries at three spiked levels were between 81.7% and 112.0%. This method was employed to determine eight compounds in camellia oils and olive oils. As results, the contents of stigmasterol, δ-tocopherol, γ-tocopherol, β-carotene and lutein in camellia oils were significantly higher than those in olive oils (p < 0.05). The proposed method can be successfully used to determination of these eight active compounds in camellia oil and other edible oils.
Bioactive components; Camellia oil; Central composite design; LC-MS/MS; Liquid-liquid extraction; Ultrasound-assisted saponification.
Simultaneous determination of tocopherols, carotenoids and phytosterols in edible vegetable oil by ultrasound-assisted saponification, LLE and LC-MS/MS
Liangxiao Zhang 1, Sujun Wang 2, Ruinan Yang 2, Jin Mao 3, Jun Jiang 4, Xiupin Wang 3, Wen Zhang 5, Qi Zhang 5, Peiwu Li 6
2019 Aug 15;
Salt, most often sodium chloride (NaCl), is commonly used in a variety of food emulsions. However, little is known about the detailed mechanism of how NaCl influences the lipid oxidation and thus the shelf life of those products. In this study, we report a new mechanism through which NaCl could help inhibit the lipid oxidation of sodium dodecyl sulfate (SDS)-stabilized oil-in-water (O/W) emulsions. Results showed that NaCl significantly lowered the critical micelle concentration (CMC) of SDS, which further led to greater amounts of lipid hydroperoxides being solubilized by SDS micelles into the aqueous phase of emulsion. NaCl also altered the distribution of δ-tocopherol between the aqueous and oil phase of emulsion. Such changes of the physical locations of lipid hydroperoxides and δ-tocopherol were responsible for the improved oxidative stability of NaCl-added O/W emulsions in the absence or presence of δ-tocopherol.
CMC; emulsion; lipid oxidation; micelles; salts.
New Insights into the Impact of Sodium Chloride on the Lipid Oxidation of Oil-in-Water Emulsions
Leqi Cui 1 2, Peiyi Shen 1, Zili Gao 1, Jianhua Yi 3, Bingcan Chen 1
2019 Apr 17;