In all of human history, adulteration and fraud followed closely in the footsteps of new products, and herbs, spices and drugs are no exception. Even 2000 years ago, Pliny the Elder described adulteration. In ancient Athens, inspectors monitored the authenticity of wine. Scientific methods were first applied by Archimedes, and started to be utilized more by the end of the 17th century. In the 1850s, heightened public awareness and the demand for higher product quality raised anti-adulteration movements and increased enforcement.
Due to health benefits, grape seed extract has become more and more popular. Cheaper plant extracts, for example peanut skin extract, show very similar results with chromatographic methods, and therefore adulteration of grape seed extract may remain undetected. The American Botanical Council’s Botanical Adulterants Prevention Program released a laboratory guidance document that reviews analytical methods for detecting adulteration of grape seed extract with proanthocyanidin-rich extracts from other botanical sources.
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