Zobrazeno 1 - 10
of 12
pro vyhledávání: '"Rolf Quilitzsch"'
Autor:
Petra Rösch, Jürgen Popp, Rolf Quilitzsch, Hartwig Schulz, Malgorzata Baranska, Gerd Lösing, Angela Walter
Publikováno v:
Vibrational Spectroscopy. 42:341-345
The essential oils isolated from several Eucalyptus species were analysed fast and non-destructively applying Raman and ATR-IR vibrational spectroscopy methods. The main components of the essential oils can be recognised by both vibrational spectrosc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c57ba371c8a73e59d23172a226078002
https://doi.org/10.1016/j.vibspec.2006.08.004
https://doi.org/10.1016/j.vibspec.2006.08.004
Autor:
S. Reitzenstein, Jürgen Popp, Ute Uhlemann, Hartwig Schulz, Hans Krüger, Malgorzata Baranska, William J. Foley, Rolf Quilitzsch, M. A. Strehle
Publikováno v:
Biopolymers. 78:237-248
This article presents a novel and original approach to analyze in situ the main components of Eucalyptus oil by means of Raman spectroscopy. The obtained two-dimensional Raman maps demonstrate a unique possibility to study the essential oil distribut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a519fefbc2e2fac7e28e4b534e71a1a2
https://doi.org/10.1002/bip.20284
https://doi.org/10.1002/bip.20284
Publikováno v:
Journal of Molecular Structure. :299-306
The essential oils obtained from various chemotypes of thyme, origano and chamomile species were studied by ATR/FT-IR as well as NIR spectroscopy. Application of multivariate statistics (PCA, PLS) in conjunction with analytical reference data leads t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d305a3316e070b43b2d7296ff9a131d4
https://doi.org/10.1016/s0022-2860(03)00517-9
https://doi.org/10.1016/s0022-2860(03)00517-9
Publikováno v:
Journal of Agricultural and Food Chemistry. 51:2475-2481
The potential of vibrational spectroscopy methods (attenuated total reflectance/Fourier-transform-infrared (ATR/FT-IR), FT-Raman and near infrared (NIR) spectroscopy) for the identification and quantification of valuable as well as carcinogenic subst
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21d3f5e01e0ab447ec7f49a70be57ec7
https://doi.org/10.1021/jf021139r
https://doi.org/10.1021/jf021139r
Publikováno v:
Planta Medica. 68:926-929
NIR reflection and ATR-IR spectroscopy methods are developed to determine the echinacoside content in roots of Echinacea angustifolia and Echinacea pallida. Based on the recorded spectra and the HPLC reference data, chemometrical analyses are perform
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88817f283ee9506a6ffb5fb2fdb84ee8
https://doi.org/10.1055/s-2002-34920
https://doi.org/10.1055/s-2002-34920
Publikováno v:
Journal of Near Infrared Spectroscopy. 6:A125-A130
The use of near-infrared (NIR) spectroscopy for the prediction of the essential oil content and composition in various umbelliferae genotypes was investigated. Furthermore an NIR method was developed for the quantification of total carotenoids and su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c6aa53c3b4dccadee2f0985063352f27
https://doi.org/10.1255/jnirs.179
https://doi.org/10.1255/jnirs.179
Open pollinating cultivars and hybrids of carrots were ecologically cultivated in the spring and autum of 2002 and 2003. Sensory quality, aroma compounds as well as carotene content and texture were evaluated. The paper presents the different effects
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b23d91d2861b0081a3533cd498d96f28
https://doi.org/10.1016/s0167-4501(06)80129-9
https://doi.org/10.1016/s0167-4501(06)80129-9
The aim of the research is to study heritability of the aroma pattern in carrot. This paper presents the results of aroma analyses of 200 single plants from an F2 population using headspace solid phase microextraction GC and pattern recognition for d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::67f7af72006da3d94c87b0e74b588329
https://doi.org/10.1016/s0167-4501(06)80013-0
https://doi.org/10.1016/s0167-4501(06)80013-0
Characterization of peppercorn, pepper oil, and pepper oleoresin by vibrational spectroscopy methods
Publikováno v:
Journal of agricultural and food chemistry. 53(9)
NIR-FT-Raman as well as ATR-IR and NIR spectroscopy in combination with efficient chemometric algorithms was applied for rapid determination of piperine in black and white ground pepper and green whole pepper berries as well as pepper oleoresins. Mos
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::96f4ea62f05208d19cd9eb96adee10c5
https://pubmed.ncbi.nlm.nih.gov/15853372
https://pubmed.ncbi.nlm.nih.gov/15853372
Publikováno v:
Analytical and bioanalytical chemistry. 381(6)
Fourier transformed-Raman (FT-Raman) and attenuated total reflection-infrared (ATR-IR) spectra of essential oils obtained from marjoram and oregano plants by hydrodistillation are presented. It is shown that the main components of the essential oils
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ce1b8afc5af01f740d314c2d14223c46
https://pubmed.ncbi.nlm.nih.gov/15711962
https://pubmed.ncbi.nlm.nih.gov/15711962