Results 21 to 30 of about 2,396,283 (252)

Utilization of Acidic α-Amino Acids as Acyl Donors: An Effective Stereo-Controllable Synthesis of Aryl-Keto α-Amino Acids and Their Derivatives

open access: yesMolecules, 2014
Aryl-keto-containing α-amino acids are of great importance in organic chemistry and biochemistry. They are valuable intermediates for the construction of hydroxyl α-amino acids, nonproteinogenic α-amino acids, as well as other biofunctional components ...
Lei Wang   +6 more
doaj   +1 more source

Polyunsaturated fatty acids in various macroalgal species from north Atlantic and tropical seas [PDF]

open access: yes, 2011
Background - In this study the efficacy of using marine macroalgae as a source for polyunsaturated fatty acids, which are associated with the prevention of inflammation, cardiovascular diseases and mental disorders, was investigated.
Keulen, H., van   +9 more
core   +1 more source

α-Tocopherol in plasma and milk from organically managed dairy cows fed natural or synthetic vitamin E or seaweed [PDF]

open access: yes, 2012
The objective was to compare the effects of supplementing lactating dairy cows with synthetic (All-rac), natural (RRR) α-tocopheryl acetate or seaweed with a control on the concentration of α-tocopherol in blood and milk.
Steinshamn, Håvard   +3 more
core   +1 more source

The Brewing Value of Bohemian and Moravian Hops from the Harvest 2008.

open access: yesKvasný průmysl, 2009
Evaluation of α- and β-bitter acids content of hops in hops crop 2008 in Czech Republic was carried out. Sampling map concerned all three growing areas - Žatec, Úštěk and Tršice area.
Alexandr MIKYŠKA
doaj   +1 more source

The evaluation of α- and β- bitter acid contents of Czech and Moravian hops from the 2012 harvest.

open access: yesKvasný průmysl, 2013
The contents of α- and β- bitter acids from hops harvested in the Czech Republic in 2012 have been evaluated. The sampling was done in all three growing areas - Žatec (77.8% of the hop yard areas in the Czech Republic), Úštěk (10.8%) and Tršice (11.5 ...
Alexandr MIKYŠKA, Marie JURKOVÁ
doaj   +1 more source

11-Keto-α-Boswellic Acid, a Novel Triterpenoid from Boswellia spp. with Chemotaxonomic Potential and Antitumor Activity against Triple-Negative Breast Cancer Cells

open access: yesMolecules, 2021
Boswellic acids, and particularly 11-keto-boswellic acids, triterpenoids derived from the genus Boswellia (Burseraceae), are known for their anti-inflammatory and potential antitumor efficacy.
Michael Schmiech   +7 more
doaj   +1 more source

Positional distribution of saturated and unsaturated fatty acids on egg lecithin

open access: yesJournal of Lipid Research, 1959
A method is described to determine the position of fatty acids on lecithin. Purified egg lecithin is enzymatically hydrolyzed to the corresponding mixture of α,β-diglycerides with lecithinase D.
N.H. Tattrie
doaj   +1 more source

Supercritical fluid extraction of hops [PDF]

open access: yesJournal of the Serbian Chemical Society, 2007
Five cultivars of hop were extracted by the method of supercritical fluid extraction using carbon dioxide (SFE-CO2) as extractant. The extraction (50 g of hop sample using a CO2 flow rate of 97.725 L/h) was done in the two steps: 1. extraction at 150 bar
Zeković Zoran   +2 more
doaj   +1 more source

Summary Evaluation of bitter acids and polyphenols content in Czech hops harvest in 2013 - I: Contents of α- and β-Bitter Acids..

open access: yesKvasný průmysl, 2014
The contents of α- and β- bitter acids from hops harvested in the Czech Republic in 2013 have been evaluated. The sampling was done in all three growing areas - Žatec (77.8% of the hop yard areas in the Czech Republic), Úštěk (10.6%) and Tršice (11.7 ...
Alexandr MIKYŠKA, Marie JURKOVÁ
doaj   +1 more source

Polysubstituted cyclohexane γ-amino acids induce a double α-/β-turn in short non-natural peptides [PDF]

open access: yes, 2022
We describe short non-natural peptides that adopt α- and β-turn folds in solution and in the crystal. The peptides are constituted by a core of trans and cis stereoisomers of polyhydroxylated cyclohexane γ-amino acids, flanked by dimers of L-α-alanine ...
Estevez , Juan C.   +5 more
core   +1 more source

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