This leads to the search for natural sources of antioxidant compounds instead of relying on the dangerous synthetic ones.
But, with the historic discovery of first synthetic dye, Mauveine, most of the uses of natural dyes have been replaced with synthetic ones as they can be manufactured on a large scale (Gordon and Gregory 1987).
In recent years, LMT research has focused on finding natural mediators to replace synthetic ones [ 26].
The results highlighted the good performance of natural-fiber composites compared with synthetic ones, and the marked influence of wood moisture content and temperature on bonding.
Probably every naturally occurring substance, and many synthetic ones, can be degraded (metabolized) by some species of bacteria.
He also said that working with herbal ingredients might be harder than working with synthetic ones because there were more variables.
Their animistic imaginations are wrested away from living things to synthetic ones, and cumulatively the authentic world takes second place to the artificial world.
But then Dr. Ames and a colleague at Berkeley, Dr. Lois Swirsky Gold, found that natural chemicals tested positive for causing cancer as often as synthetic ones.
As for organic farming, its basic principle, which Charles strongly endorses, is that natural chemicals are good and synthetic ones bad: a principle every scientist would describe as a scientific howler.
Miriam Rothschild, the British naturalist who died in 2005, wrote glowingly of Ms. Beresford-Kroeger's idea of bioplanning and called it "one answer to 'Silent Spring' " because it uses natural chemicals rather than synthetic ones.
What they don't tell you: "Ecological" washing up liquids and clothes detergents offer an environmental benefit by favouring rapidly biodegradable, low-toxicity, plant-based ingredients over harsher synthetic ones.
