Results 41 to 50 of about 6,807 (146)

Anti-Lymphangiogenesis Components from Zoanthid Palythoa tuberculosa

open access: yesMarine Drugs, 2018
Three new compounds, tuberazines A–C (1–3), and eleven known compounds (4–14) were obtained from the ethanolic extract of Taiwanese zoanthid Palythoa tuberculosa.
Shu-Rong Chen   +8 more
doaj   +1 more source

Determination of Antioxidant Capacity, Phenolics and Volatile Maillard Reaction Products in Rye-Buckwheat Biscuits Supplemented with 3β-d-Rutinoside

open access: yesMolecules, 2019
The Maillard reaction (MR) is responsible for the development of color, taste and aroma in bakery products though the formation of numerous aroma compounds such as pyrazines, pyrroles and aldehydes, nonvolatile taste active compounds and melanoidins.
Małgorzata Starowicz   +2 more
doaj   +1 more source

μ-Pyrazine-bis[tetraaquacadmium(II)] μ-pyrazine-bis[tetraacetatocadmium(II)] [PDF]

open access: yesActa Crystallographica Section E Structure Reports Online, 2008
In the title dinuclear ionic complex, [Cd(2)(C(4)H(4)N(2))(H(2)O)(8)][Cd(2)(CH(3)CO(2))(8)(C(4)H(4)N(2))], the cation and anion are disordered equally over a site with symmetry mmm. The Cd(II) ions and the N atoms of the bridging pyrazine ligand lie on the inter-section of two crystallographic mirror planes.
Fun, Hoong-Kun   +2 more
openaire   +2 more sources

GC-IMS-Based Analysis of the Effect of Frying Temperature on Volatile Flavor Substances in Highland Barley Tsampa Flour

open access: yesShipin gongye ke-ji, 2023
To clarify the effects of different frying temperatures and grain colors on volatile organic compounds (VOCs) in highland barley (HB) tsampa flour, gas chromatography-ion mobility spectrometry (GC-IMS) was used to analyze the VOCs in two types of HB with
Yahong GUO   +8 more
doaj   +1 more source

N,N′-Bis(pyrazin-2-ylmethyl)pyrazine-2,3-dicarboxamide [PDF]

open access: yesIUCrData, 2016
The title compound, C16H14N8O2, was prepared by a condensation reaction between the dimethyl ester of pyrazine-2,3-dicarboxylic acid and an excess of 2-(aminomethyl)pyrazine. The molecule is approximately V-shaped with the central pyrazine ring joined through amide linkages to two pyrazin-2-ylmethyl substituents. In the crystal, molecules are linked by
Zhaodong Wang   +2 more
openaire   +2 more sources

Unveiling the microbiota of sauce-flavor Daqu and its relationships with flavors and color during maturation

open access: yesFrontiers in Microbiology
This study investigated the microbial community in three-color sauce-flavor Daqu (black, yellow, and white) throughout their maturation processes, together with their physicochemical factors, culturable microbes, flavor components, and fermenting ...
Weiwei Dong   +11 more
doaj   +1 more source

Simultaneous Determination of 20 Pyrazines in Baijiu by Gas Chromatography-Tandem Mass Spectrometry [PDF]

open access: yesShipin Kexue
In this study, a method for the simultaneous determination of 20 pyrazines in baijiu was established by direct injection (DI) combined with gas chromatography-tandem mass spectrometry (GC-MS/MS), and the pyrazines in 10 brands of baijiu with different ...
WANG Na, SHEN Yi, ZHUANG Yuan, CHENG Wei, LUO Sen, ZHANG Yadong, LIU Zixuan, LIU Bing, GAO Hongbo
doaj   +1 more source

N′-[1-(Pyrazin-2-yl)ethylidene]pyrazine-2-carbohydrazide [PDF]

open access: yesIUCrData, 2018
The title compoud, C11H10N6O, was synthesized by the condensation reaction of pyrazine-2-carbohydrazide with 2-acetylpyrazine in ethanol. The dihedral angle between the pyrazine rings is 4.7 (3)°. In the crystal, aromatic π–π stacking [centroid–centroid separations = 3.606 (5) and 3.671 (5) Å] connect the molecules into stacks propagating in the [010 ...
openaire   +2 more sources

Effect of a New Natural Seasoning on the Formation of Pyrazines in Barbecued Beef Patties

open access: yesJournal of Chemistry, 2016
The formation of pyrazines in food cooking is required to obtain satisfactory “roasted” flavor. The aim of this work was to evaluate the effect of a new red wine pomace seasoning (RWPS) on the formation of pyrazines in barbecued beef patties.
Javier García-Lomillo   +4 more
doaj   +1 more source

Simultaneous detection of 12 pyrazines in Guizhou sauce-flavor Baijiu by SPE-GC-MS/MS [PDF]

open access: yesZhongguo niangzao
A method was established for the simultaneous determination of 12 pyrazines in Guizhou sauce-flavor (Jiangxiangxing) Baijiu by solid phase extraction (SPE) pretreatment combined with gas chromatography-tandem mass spectrometry (GC-MS/MS).
YANG Jinchuan, HANG Jialing, BAI Xuemei, ZHANG Jimin
doaj   +1 more source

Home - About - Disclaimer - Privacy