Interaction of Moderate UV-B Exposure and Temperature on the Formation of Structurally Different Flavonol Glycosides and Hydroxycinnamic Acid Derivatives in Kale (Brassica oleracea var. sabellica)

2014 ◽  
Vol 62 (18) ◽  
pp. 4054-4062 ◽  
Author(s):  
Susanne Neugart ◽  
Michaela Fiol ◽  
Monika Schreiner ◽  
Sascha Rohn ◽  
Rita Zrenner ◽  
...  
Keyword(s):  
Brassica Oleracea ◽  
Hydroxycinnamic Acid ◽  
Flavonol Glycosides ◽  
Hydroxycinnamic Acid Derivatives

Stability of Hydroxycinnamic Acid Derivatives, Flavonol Glycosides, and Anthocyanins in Black Currant Juice

2016 ◽  
Vol 64 (22) ◽  
pp. 4584-4598 ◽  
Author(s):  
Leenamaija Mäkilä ◽  
Oskar Laaksonen ◽  
Aino-Liisa Alanne ◽  
Maaria Kortesniemi ◽  
Heikki Kallio ◽  
...  
Keyword(s):  
Hydroxycinnamic Acid ◽  
Flavonol Glycosides ◽  
Black Currant ◽  
Hydroxycinnamic Acid Derivatives

Structurally different flavonol glycosides and hydroxycinnamic acid derivatives respond differently to moderate UV-B radiation exposure

2012 ◽  
Vol 145 (4) ◽  
pp. 582-593 ◽  
Author(s):  
Susanne Neugart ◽  
Michaela Zietz ◽  
Monika Schreiner ◽  
Sascha Rohn ◽  
Lothar W. Kroh ◽  
...  
Keyword(s):  
Radiation Exposure ◽  
Hydroxycinnamic Acid ◽  
Flavonol Glycosides ◽  
Hydroxycinnamic Acid Derivatives

Flavonoids and UV Photoprotection in Arabidopsis Mutants

2001 ◽  
Vol 56 (9-10) ◽  
pp. 745-754 ◽  
Author(s):  
Ken G Ryan ◽  
Ewald E Swinny ◽  
Chris Winefield ◽  
Kenneth R Markham
Keyword(s):  
Crucial Role ◽  
Hydroxycinnamic Acid ◽  
Ultraviolet B ◽  
Uvb Radiation ◽  
Wild Type ◽  
Hydroxycinnamic Acid Derivatives ◽  
Quercetin Glycosides ◽  
Kaempferol Glycosides ◽  
Low Levels ◽  
High Level

AbstractWild-type Arabidopsis L. leaves exposed to low ultraviolet-B (U V B ) conditions contained predominantly kaempferol glycosides, with low levels of quercetin glycosides. The flavonoid level doubled on treatment with UVB and an increase in the ratio of quercetin: kaempferol was observed. These results suggest that flavonols protect Arabidopsis plants from UVB damage, and indicate that the flavonoid 3’-hydroxylase (F3’H) enzyme, which converts dihydrokaempferol to dihydroquercetin, may play a crucial role. The tt7 mutant lacks this gene and, after treatment with sub-ambient UVB, contained kaempferol glycosides exclusively, to a level of total flavonols similar to that in wild-type Arabidopsis. Total flavonols after enhanced UVB treatment were higher in tt7 than in similarly treated wild-type plants, and only kaempferol glycosides were detected. Despite this high level, tt7 plants were less tolerant of UVB radiation than wild-type plants. These observations suggests that kaempferol is a less effective photoprotectant than quercetin. The chalcone isomerase (CHI) mutant (tt5) surprisingly did not accumulate naringenin chalcone, and this suggests that the mutation may not be restricted to the CHI gene alone. The concentration of hydroxycinnamic acid derivatives did not change with UVB treatment in most varieties indicating that their role in UV photoprotection may be subordinate to that of the flavonoids.

Drying methods and structure-activity of hydroxycinnamic acid derivatives in the Idesia polycarpa Maxim. leaves

2020 ◽  
Author(s):  
Lei Huang ◽  
Yu Zhu ◽  
Tong Peng ◽  
Jianfei Qiu ◽  
Qing Rao ◽  
...  
Keyword(s):  
Biological Activities ◽  
Hydroxycinnamic Acid ◽  
Drying Methods ◽  
Post Harvest ◽  
Structure Activity ◽  
Hydroxycinnamic Acid Derivatives ◽  
Excellent Source

The Idesia polycarpa Maxim. leaves is an excellent source of hydroxycinnamic acid derivatives which have been drawn special attention due to the various biological activities. However, the effect of post-harvest...

Synthesis and Antioxidant Properties of Hydroxycinnamic Acid Derivatives Containing Isobornyl Substituents

2019 ◽  
Vol 55 (4) ◽  
pp. 658-664 ◽  
Author(s):  
I. A. Dvornikova ◽  
E. V. Buravlev ◽  
I. V. Fedorova ◽  
O. G. Shevchenko ◽  
I. Yu. Chukicheva ◽  
...  
Keyword(s):  
Antioxidant Properties ◽  
Hydroxycinnamic Acid ◽  
Hydroxycinnamic Acid Derivatives
Sign in / Sign up

Export Citation Format

Share Document