Zobrazeno 1 - 10
of 36
pro vyhledávání: '"Sam Asen"'
Publikováno v:
Phytochemistry. 14:2677-2682
The anthocyanin and flavonol glycosides in Larkspur flowers (cv. Dark Blue Supreme) are delphinidin 3-di( p -hydroxybenzoyl)glucosylglucoside, kaempferol 3-robinobioside-7-rhamnoside (robinin), kaempferol 3-rutinoside, kaempferol 7-rhamnoside, and ka
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a61587efe6227b98a891fc97d1a5a7c1
https://doi.org/10.1016/0031-9422(75)85249-6
https://doi.org/10.1016/0031-9422(75)85249-6
Autor:
Sam Asen
Publikováno v:
Phytochemistry. 23:2523-2526
Flavonoids present in petals from Gerbera flowers were resolved and quantitated by high pressure liquid chromatography (HPLC). The anthocyanins isolated from 18 cultivars, ranging in color from orange through lavender, were pelargonidin and cyanidin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cb6b559cd46969c451d405ee0536f6d
https://doi.org/10.1016/s0031-9422(00)84090-x
https://doi.org/10.1016/s0031-9422(00)84090-x
Publikováno v:
Biochemical Systematics and Ecology. 7:281-287
The anthocyanins of 28 cultivars of poinsettia were resolved by HPLC. The amount of each of the 5 anthocyanins was calculated, both by integration of the under their HPLC profile peaks and by second derivatives of the peaks. Comparisons of the two me
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6dcb1c486e4f88dad7b15193ef14b5a
https://doi.org/10.1016/0305-1978(79)90005-x
https://doi.org/10.1016/0305-1978(79)90005-x
Publikováno v:
Phytochemistry. 14:937-942
A microspectrophotometric method has been developed for calorimetric pH determination using indicator dyes. Tissue samples as small as five cells were used. Measurements of standard buffered solutions of known pH were within a standard error of less
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::83db6ecbc159b282fab58920d4dcb560
https://doi.org/10.1016/0031-9422(75)85162-4
https://doi.org/10.1016/0031-9422(75)85162-4
Publikováno v:
Phytochemistry. 25:2509-2513
The major flavonoids responsible for flower colours of Eustoma grandiflorum were characterized by TLC, HPLC, spectral and chemical analyses. Anthocyanins were delphinidin 3-rhamnosylgalactoside-5-glucoside and delphinidin 3-galactoside-5-glucoside, e
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b243105e4845fece602394a858ccdef
https://doi.org/10.1016/s0031-9422(00)84498-2
https://doi.org/10.1016/s0031-9422(00)84498-2
Publikováno v:
Biochemical Systematics and Ecology. 8:119-125
The flavonols from each of 38 poinsettia cultivars were quantitatively resolved by HPLC. Careful selection of samples revealed significant quantitative differences in flavonol content. While all cultivars of seedling origin could be differentiated on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eb0efe1dde49397e0ea82fbb885dcd30
https://doi.org/10.1016/0305-1978(80)90004-6
https://doi.org/10.1016/0305-1978(80)90004-6
Autor:
Sam Asen, S.L. Emsweller
Publikováno v:
Phytochemistry. 1:159-174
Ferulic, sinapic, and p -coumaric acids as well as their glucose esters were isolated from seeds and pericarps of the inter-specific hybrid Lilium speciosum Thumb. “Album” by Lilium auratum Lindl. The abnormal physiology of these seeds was ascrib
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1aaf47db11ccac2562d2c152db3c4a32
https://doi.org/10.1016/s0031-9422(00)82819-8
https://doi.org/10.1016/s0031-9422(00)82819-8
Publikováno v:
American Journal of Botany. 56:227-231
Data from measurements of optical density of intact tissue and of anthocyanins in extracts resolved on cellulose thin layer plates were compared with visual evaluations of color quality and intensity in poinsettia, rose, and snapdragon. Visual evalua
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56de12276cd37af345bfe0ffbcb7b565
https://doi.org/10.1002/j.1537-2197.1969.tb07527.x
https://doi.org/10.1002/j.1537-2197.1969.tb07527.x
Autor:
Sam Asen, Leonard Jurd
Publikováno v:
Phytochemistry. 5:1263-1271
Quercitrin, chlorogenic acid, and methyl gallate have no measurable effect on the color, spectra, or stability of cyanidin 3-glucoside in aq. solutions at pH 3–6·5. In acetate buffer solutions (pH 5·45) containing aluminum salts, however, quercit
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5b31afea5ca281800a584276f9038de6
https://doi.org/10.1016/s0031-9422(00)86122-1
https://doi.org/10.1016/s0031-9422(00)86122-1
Autor:
Charles L. Hamner, Sam Asen
Publikováno v:
Botanical Gazette. 115:86-89
1. Several growth-regulating compounds (ethylene chlorohydrin, naphthaleneacetic acid, naphthoxyacetic acid, 2,3,5-triiodobenzoic acid, and a mixture of all four) were tested for their effect on the development of basal shoots of green-house roses. 2
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d2f866dc4f77c4744df0d2ca8dd7d80
https://doi.org/10.1086/335801
https://doi.org/10.1086/335801