TY - CHAP A1 - Katarzyna Szarc vel Szic A2 - Ajay Palagani A3 - Behrouz Hassannia A4 - Linde Sabbe A5 - Karen Heyninck A6 - Guy Haegeman A7 - Wim Vanden Berghe ED1 - Iraj Rasooli Y1 - 2011-12-22 PY - 2011 T1 - Phytochemicals and Cancer Chemoprevention: Epigenetic Friends or Foe? N2 - Among the thousands of naturally occurring constituents so far identified in plants and exhibiting a long history of safe use, there are none that pose - or reasonably might be expected to pose - a significant risk to human health at current low levels of intake when used as flavoring substances. Due to their natural origin, environmental and genetic factors will influence the chemical composition of the plant essential oils. Factors such as species and subspecies, geographical location, harvest time, plant part used and method of isolation all affect chemical composition of the crude material separated from the plant. The screening of plant extracts and natural products for antioxidative and antimicrobial activity has revealed the potential of higher plants as a source of new agents, to serve the processing of natural products. BT - Phytochemicals SP - Ch. 7 UR - https://doi.org/10.5772/28499 DO - 10.5772/28499 SN - PB - IntechOpen CY - Rijeka Y2 - 2021-05-13 ER -