At present many scientists are working on plants and their products without isolating them as pure and single molecule. Actually if plant products are consumed by living organisms they may be converted into potential, modified, molecules to show a function of antioxidant or free radical scavenging activity. Even in pure molecule ingestion study the scientists are advising mixed molecules to elicit a potential activity. what one can predict on the molecules at the levels of biology, physiology, biochemistry, immunology, defense, toxicity and molecular biology? Do they have any environmental impact? the plant products after isolation into single molecule may not have stability. The reasons may be?