Results 31 to 40 of about 7,205 (166)

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

Syntheses and Applications of 1,2,3-Triazole-Fused Pyrazines and Pyridazines

open access: yesMolecules, 2022
Pyrazines and pyridazines fused to 1,2,3-triazoles comprise a set of heterocycles obtained through a variety of synthetic routes. Two typical modes of constructing these heterocyclic ring systems are cyclizing a heterocyclic diamine with a nitrite or ...
Gavin R. Hoffman, Allen M. Schoffstall
doaj   +1 more source

GC-Olfactometric Analysis as a Tool for Comprehensive Characterization of Aromatic Profiles in Cocoa-Based Beverages with a Natural Chocolate Substitute

open access: yesFermentation
Cocoa is the third most important global agricultural export commodity. However, because it is a crop sensitive to climatic change, there has been an active search for cocoa substitutes worldwide.
Fernanda Papa Spada   +3 more
doaj   +1 more source

Reactions and Syntheses of Pyrazines

open access: yesYAKUGAKU ZASSHI, 1997
This review deals with syntheses and reactions of pyrazines, especially, of 2,5-disubstituted pyrazines. The description was made in due to order of 1) synthesis and properties of 2,5-disubstituted pyrazines, 2) synthesis of 2,5-disubstituted pyrazine N-oxides, 3) synthesis of pyrazinols, 4) synthesis and utilization of pyrazinethiols; preparation of ...
A, Ohta, Y, Aoyagi
openaire   +3 more sources

Research Progress of Pyrazines in Baijiu [PDF]

open access: yesZhongguo niangzao
Pyrazines are an important class of nitrogen-containing heterocyclic flavor compounds, which contribute greatly to the aroma and quality of Baijiu, particularly sauce-flavor (Jiangxiangxing), sesame-flavor (Zhimaxiangxing) and blended-flavor ...
DU Jiawei, LIU Jiahuan, JIANG Sha, NING Zhenzhen, ZHANG Yang, NI Xingting, LI Qiang, YANG Qiang
doaj   +1 more source

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

Complexes of Uranium and Thorium with Pyrazine and Pyrazine Amides

open access: yes, 1981
Chemistry Division, Bhabha. Atomic Research Centre, Trombay, Bombay-400 085 Manuscript received 30 October 1978, revised 28 August 1980, accepted 28 January 1981 Reactions of uranium tetrachloride, uranyl nitrate and thorium nitrate with pyrazine (Pyz), pyrazine 2-carboxamide (Pyza) and pyrazine 2, 3-dicarboxamide (Pyzda) have been carried out to study
S. C. JAIN, M. S. GILL, G. S. RAO
openaire   +2 more sources

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

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

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