Zobrazeno 1 - 10
of 62
pro vyhledávání: '"Karel Ventura"'
Publikováno v:
Molecules, Vol 26, Iss 24, p 7422 (2021)
The volatile components of areca nuts were isolated by headspace solid-phase microextraction (HS-SPME, DVB/CAR/PDMS fiber extraction) and simultaneous hydrodistillation–extraction (SHDE) and analyzed by gas chromatography/mass spectrometry. Further
Externí odkaz:
https://doaj.org/article/4379c927696c422491dd0b20644a6546
Publikováno v:
Química Nova, Vol 39, Iss 4, Pp 530-533 (2016)
This paper summarizes a problematic nomenclature of isomers belonging to chlorogenic acid family since its first occurrence until present. During decades, there have been a high number of articles dealing with the family. Unfortunately, researchers w
Externí odkaz:
https://doaj.org/article/659ee8d258e94515a31fec8a5e3bcea5
Autor:
Kristýna Řebíčková, Tomáš Bajer, David Šilha, Markéta Houdková, Karel Ventura, Petra Bajerová
Publikováno v:
Molecules, Vol 25, Iss 10, p 2432 (2020)
Essential oils obtained via the hydrodistillation of two Asian herbs (Houttuynia cordata and Persicaria odorata) were analyzed by gas chromatography coupled to mass spectrometry (GC–MS) and gas chromatography with flame ionization detector (GC–FI
Externí odkaz:
https://doaj.org/article/791aaaf7afb143b29d21a9aeb4dccd5b
Publikováno v:
Plant Foods for Human Nutrition. 75:495-504
The purpose of this study was to compare the yield, chemical composition, antimicrobial and antioxidant properties of essential oils isolated from leaves of Laurus nobilis L. by two different distillation methods. The essential oils isolated by hydro
Publikováno v:
European Journal of Wood and Wood Products. 78:393-402
An optimized method of headspace solid-phase microextraction coupled with gas chromatography with flame ionization detector (HS/SPME-GC/FID) was used to discriminate between larch wood originated from Central Europe and larch wood from Siberia. Varia
Publikováno v:
Scientific Reports
Scientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
Scientific Reports, Vol 10, Iss 1, Pp 1-8 (2020)
This research provides an accurate description of the origin for fruit spirits. In total, 63 samples of various kinds of fruit spirits (especially from apples, pears, plums, apricots and mirabelle) were analysed using headspace-solid phase microextra
Autor:
Karel Ventura, Kristýna Řebíčková, David Šilha, Tomáš Bajer, Petra Bajerová, Marketa Houdkova
Publikováno v:
Molecules, Vol 25, Iss 2432, p 2432 (2020)
Molecules
Volume 25
Issue 10
Molecules
Volume 25
Issue 10
Essential oils obtained via the hydrodistillation of two Asian herbs (Houttuynia cordata and Persicaria odorata) were analyzed by gas chromatography coupled to mass spectrometry (GC-MS) and gas chromatography with flame ionization detector (GC-FID).
Publikováno v:
Industrial Crops and Products. 119:313-321
Head-space solid phase microextraction (HS-SPME), simultaneous distillation-extraction (SDE) and supercritical fluid extraction (SFE) were employed to prepare volatile extracts of tonka beans (Dipteryx odorata). A total of 190 compounds were assigned
Publikováno v:
Food Analytical Methods. 11:1619-1626
This work deals with the application of the QuEChERS method for extraction of synthetic food dyes (SFD) from confectionery samples: tartrazine (E102), quinoline yellow (E104), cochineal red A (E124), allura red (E129), patent blue V (E131), and brill
Publikováno v:
Industrial Crops and Products. 100:95-105
The essential oil of dry leaves and stems of Epilobium parviflorum Schreb. was obtained by hydrodistillation using a Clevenger apparatus, for 5 h with a 0.02% (w/w) yield. The qualitative and semi-quantitative analysis of its hexane extract by GC-FID