Gas chromatographic and antimicrobial analyses of phenolic compounds in Senna alata (L.) Roxb. (Fabales: Fabaceae)

Sennosides A and B production by hairy roots of Senna alata (L.) Roxb.

Hairy roots of Senna alata transformed with Agrobacterium rhizogenes, strain ATCC 15834 were induced and grown in half-strength Murashige and Skoog (MS) medium. Effects of sucrose contents and hormones on the growth and sennosides A, B production were investigated. Hairy roots cultured on hormone-free half-strength MS medium containing 5% sucrose under dark condition mostly stimulated the growt...

Stimulation of Growth and Development of Celosia argentea L. by Crude Extracts of Senna alata (L.) Roxb

The effects of different concentrations of Senna alata crude water extracts on the germination, growth and flowering of Celosia argentea were studied. All concentrations of this extract induced a consistent decrease in absolute percentage and rate of germination, and inhibited radical elongation in Celosia argentea. Earliness in flowering and overall increase in height was obtained from seedlin...

Phenolic Compounds in Flaxseed Chromatographic and Spectroscopic Analyses of Glucosidic Conjugates

Johnsson, P. 2004. Phenolic compounds in flaxseed: Chromatographic and spectroscopic analyses of glucosidic conjugates. Licentiate thesis. ISSN 1101-5411, ISBN 91-576-6630-x The dietary lignan secoisolariciresinol diglucoside (SDG), present in high concentrations in flaxseed, and its metabolites enterolactone and enterodiol are thought to decrease the risk of hormone dependent cancers, cardiova...

Thai plants with high antioxidant levels, free radical scavenging activity, anti-tyrosinase and anti-collagenase activity

BACKGROUND Ultraviolet radiation from sunlight induces overproduction of reactive oxygen species (ROS) resulting in skin photoaging and hyperpigmentation disorders. Novel whitening and anti-wrinkle compounds from natural products have recently become of increasing interest. The purpose of this study was to find products that reduce ROS in 14 Thai plant extracts. METHODS To determine total phe...

Impact of auto exhaust emission on seed germination and seedling growth behavior of Senna alata (L.) Roxb.- (Candle bush) an important medicinal and ornamental flowering tree