Py-GC-MS Analysis on Benzene-Alcohol Extractives of <i>Phyllostachys pubescens</i> for Biomedical Engineering

Abstract

In order to evaluate its potential biomedicines, the extractives of Phyllostachys pubescens were extracted and determined by Py-GC-MS. And the main constituents were 1-phenanthrenecarboxylic acid, 1,2,3,4,4a,9,10,10a-octahydro-1,4a-dimethyl-7-(1-methylethyl)-(% 7.02), stigmast-5-en-3-ol, oleate(4.33%), 4,4,6a,6b,8a,11,11,14b-octamethyl-1,4,4a,5,6,6a,6b,7,8, 8a,9,10,11,12,12a,14,14a,14b-octadecahydro-2h-picen-3-one(3.39%), etc. So the benzene-alcohol extractives of Phyllostachys pubescens could be used for biomedical engineering.

Experimental evidence for the role of heterotrophic bacteria in the formation of Microcystis colonies

“…We identified 18 compounds in coculture treatments but not in their controls. Some of these compounds, such as 11,13-dimethyl-12-tetradecen-1-ol acetate, methyl 2-octylcyclopropene-1-octanoate, docosane, di(2-ethylhexyl) ester, 2,7-dimethyl-2, 7-octadien-1-amine, isomenthylamine and 2-ethylhexylhexyl ester, are antioxidants (Adams 1978;Ivanovic et al 2012;Liu et al 2007;Ma et al 2011;Malloy et al 2011;Ngang et al 2014;Sharman et al 1994) and may protect Microcystis or Bac-EA cells from adverse environmental cond i t i o n s . I n p a r t i c u l a r , N -b e n z y l -N -e t h y -Pisopropylbenzamide, 2-dodecen-1-yl(-) succinic anhydride and 9-(methylaminomethyl) anthracene were identified in coculture extracts but not from the control group (single culture of M. aeruginosa FACHB905 or Bac-EA).…”