fulltext.study @t Gmail

Ultraviolet-B radiation effects on phenolic profile and flavonoid content of Kalanchoe pinnata

Paper ID Volume ID Publish Year Pages File Format Full-Text
29691 44431 2015 9 PDF Available
Title
Ultraviolet-B radiation effects on phenolic profile and flavonoid content of Kalanchoe pinnata
Abstract

•UV-B radiation effect on phenolic profile and flavonoid content of K. pinnata.•UV-B radiation changed phenolic profile of K. pinnata extracts.•UV-B radiation increased total flavonoid and quercitrin content of extracts.•This is the first report of ImageJ® use to analyze TLC revealed with NP–PEG.

Ultraviolet-B radiation is an important abiotic factor that can stimulate the production of secondary metabolites, including polyphenolic compounds. Kalanchoe pinnata (Crassulaceae) is a medicinal plant popularly used in Brazil for treating wounds and inflammation. This species is rich in phenolic compounds, which could account for some of its biological activities, including antileishmanial, antihypertensive and antibacterial properties. We investigated the effects of supplemental UV-B radiation on the phenolic profile, antioxidant activity and total flavonoid content of leaves of K. pinnata. Plants were grown under white light (W – control) and supplemental UV-B radiation (W + UVB). Supplemental UV-B radiation enhanced the total flavonoid content of the leaf extracts, without affecting the antioxidant activity or yield of extracts. Analysis by TLC and HPLC of W and W + UVB leaf extracts revealed quantitative and qualitative differences in their phenolic profiles. W + UVB extracts contained a higher diversity of phenolic compounds and a larger amount of quercitrin, an important bioactive flavonoid of this species. This is the first report of the use of ImageJ® program to analyze a TLC visualized by spraying with NP–PEG reagent. UV-B radiation is proposed as a supplemental light source in K. pinnata cultivation in order to improve its flavonoid composition.

First Page Preview
Ultraviolet-B radiation effects on phenolic profile and flavonoid content of Kalanchoe pinnata
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 148, July 2015, Pages 73–81
Authors
, , , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us