An official website of the United States government.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Plant Lactuca sativa (Asteraceae)

Common Names
Lettuce
How this plant is used
Food
View the list of ubiquitous chemicals
List of plant chemicals.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Chemical Name Activity Count Plant Part Low Parts Per Million High Parts Per Million Standard Deviation Reference
TRYPTOPHAN 29 Leaf 90.0 1500.0 -1.54 Duke, 1992 *
TYROSINE 8 Leaf 320.0 5333.0 -0.74 Duke, 1992 *
VALINE 3 Leaf 700.0 11667.0 -0.29 Duke, 1992 *
VANADIUM 16 Leaf 0.3 20.3 2.25 Duke, 1992 *
VIT-B-6 0 Leaf 0.6 9.2 -0.59 Duke, 1992 *
VIT-E 0 Leaf not available not available not available Duke, 1992 *
VIT-G 0 Leaf not available not available not available Duke, 1992 *
VIT-K 0 Leaf not available not available not available Duke, 1992 *
WATER 0 Leaf 920000.0 971000.0 0.82 Duke, 1992 *
YTTERBIUM 0 Leaf 0.0 0.9 -0.52 Duke, 1992 *
YTTRIUM 0 Leaf 0.4 8.7 -0.98 Duke, 1992 *
ZINC 77 Leaf 2.7 974.0 5.45 Duke, 1992 *
ZIRCONIUM 0 Leaf 0.4 87.0 0.77 Duke, 1992 *
View the list of ubiquitous chemicals
List of plant activities.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Activity Chemical Count Reference
Neurotoxic 1 Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp.
Neurotransmitter 1 Duke, 1992 *
NF-kB-Inhibitor 4 Duke, 1992 *
NO-Genic 1 Duke, 1992 *
NO-Inhibitor 3 Duke, 1992 *
NO-Synthase-Inhibitor 1 Duke, 1992 *
Odontolytic 1 Zebovitz, T. C. Ed. 1989. Part VII. Flavor and Fragrance Substances, in Keith L. H. and Walters, D.B., eds. Compendium of Safety Data Sheets for Research and Industrial Chemicals. VCH Publishers, New York. 3560-4253.
Ornithine-Decarboxylase-Inhibitor 4 Hagerman, A.E. Tannin-Protein Interactions. Phenolic Compounds in Food and Their Effects on Health, Ch.19.
Osteogenic 1 Davies, S., and Stewart, A. 1990. Nutritional Medicine. Avon Books, New York. 509pp.
Ovulant 1 Duke, 1992 *
Oxidant 2 Larson, R.A. 1987. Review Article Number 30. The Antioxidants of Higher Plants. Phytochemistry. 27: 969-978.
P450-Inducer 1 Father Nature's Farmacy: The aggregate of all these three-letter citations.
P450-Inhibitor 1 Father Nature's Farmacy: The aggregate of all these three-letter citations.
PAF-Inhibitor 1 Duke, 1992 *
Pancreatoxic 1 Challem, J., Berkson, Burt, and Smith, Melissa Dianne. 2000.
Syndrome X - The complete nutritional program to prevent and reservse insulin resistance. John Wiley & Sons, New York. 272 pp. $24.95
Parasiticide 1 Martindale's 29th
Parasympathomimetic 1 Neuwinger, H. D. 1996. African Ethnobotany - Poisons and Drugs. Chapman & Hall, New York. 941 pp.
Percutaneostimulant 2 Seki, T., Toeda, C., Kawaguchi, T., Juni, K., Sugibayashi, K., and Morimoto, Y. 1990. Enhanced Transdermal Delivery of Zidovudine in Rats and Human Skin. Chem. Pharm. Bull. 38(11): 3086-3089, 1990.
Perfumery 3 Aloe Research Council - Duke writeup of non-peer reviewd book by Coats and draft by Henry
Pesticide 21 Duke, 1992 *