The current state of understanding of protein structure as it relates to its function in foaming has proven to be of sufficient accuracy to predict the effects of particular modifications in soy proteins. Comparative whipping studies performed on egg white, casein, Bovine serum albumin and soy protein showed important differences both in the development and subsequent stability of foams produced from these proteins. Our understanding of the structures of soy proteins and the alterations induced by reductive modification and heating implied that similar modifications would have dramatic impact on the foaming properties specifically of the 11S protein. The foaming ability and stability of the 11S protein were enhanced dramatically by cleavage of intersubunit disulfide bridging. Computerized lamellar measurement techniques developed in this laboratory indicated that these modifications enhanced the ability of the protein to foam rapidly and then to stabilize surface films at the rate typically encountered in the whipping of foams.
A direct saponification method was developed to determine cholesterol quantitatively in turkey meat and its processed products at a detection limit of 10 ppm. Five solvents and two derivatizing agents were evaluated. The method involved direct saponification with ethanolic KOH, homogeneous-phase toluene extraction of unsaponifiables, derivatization of cholesterol to a trimethylsilyl ether and quantitation by gas chromatography with flame ionization detection using 5␣-cholestane as internal standard. Compounds were confirmed by gas chromatography-mass spectrometry.
Key Points
Question
Did health care use among undocumented residents change with increasing anti-immigrant rhetoric during the 2016 presidential campaign?
Findings
In this cohort study based on a single-center analysis of health care use among 20 211 adults and children, there was a 34.5% decrease in completed primary care visits among undocumented children and 43.3% decrease in completed primary care visits among undocumented adults between June 16, 2015 (the start of the Trump campaign for presidency, associated with an increase in anti-immigrant rhetoric), and May 31, 2018, which was significantly greater than patients in the Medicaid group.
Meaning
A significant decrease was noted in this cohort study in the use of primary health care services among a sample of predominantly undocumented patients compared with those in a Medicaid control group in the setting of rising anti-immigrant rhetoric associated with the 2016 presidential campaign.
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