Journal of Food, Agriculture and Environment

UV-B radiation effects on phenolic changes and antioxidant activity in Salvia miltiorrhiza Bunge leaf

Author(s):

Jingling Liu, Zhiming Shu, Zongsuo Liang *, Xinglong Shi, Yumin Zhang

Recieved Date: 2013-07-16, Accepted Date: 2013-09-28

Abstract:

The root and rhizome of Salvia miltiorrhiza have been used as traditional Chinese medicine for centuries, but its leaf, the abandoned part at harvest time, also possesses considerable phenolics with significant antioxidant activity. The effects of UV-B radiation (208-320 nm) on phenolics content and antioxidant activity in its leaf were evaluated for controlling the quality of medicinal materials and for the potential in industrial use as botanical extract. Lower does UV-B radiation (560 J m^-2 d^-1) did not increase phenolics content after 6 days, while it significantly increased under enhanced radiation (950 J m^-2 d^-1) from 24 h. In both radiation doses, the activity of antioxidant enzymes drastically increased to the highest at 24 h, after when the relatively higher level was maintained till to 6^th day. These results indicate that plant prefer to be against lower does UV-B radiation through increasing the activity of antioxidant enzymes, but phenolic compounds would be produced in short-term period to avoid much more stress if higher dose radiation was continuously met. Enhanced UV-B radiation significantly increases the phenolics content in S. miltiorrhiza leaf and offers an exciting potentiality for its industrial use as botanical extract, food or cosmetics supplements that are rich in antioxidants.

Keywords:

Salvia miltiorrhiza Bunge, antioxidant activity, leaf, phenolic content, UV-B radiation

---

Journal: Journal of Food, Agriculture and Environment
Year: 2013
Volume: 11
Issue: 3&4
Category: Environment
Pages: 2788-2791

---

Full text for Subscribers

---

Information:

Note to users

The requested document is freely available only to subscribers/registered users with an online subscription to the Journal of Food, Agriculture & Environment. If you have set up a personal subscription to this title please enter your user name and password. All abstracts are available for free.

Article purchasing

If you like to purchase this specific document such as article, review or this journal issue, contact us. Specify the title of the article or review, issue, number, volume and date of the publication. Software and compilation, Science & Technology, all rights reserved. Your use of this website details or service is governed by terms of use. Authors are invited to check from time to time news or information.

---

Purchase this Article:   20 Purchase PDF Order Reprints for 15

---

Share this article :