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Dr. Duke's Phytochemical and Ethnobotanical Databases
U.S. Department of Agriculture

Chemical ASCORBIC-ACID

Chemical ID
ASCORBICACID
Ubiquitous
Yes
List of known dosages
Dosage Reference
LD50=518 (ivn mus) Jim Duke's personal files.
PTD=1-5 g
RDA=30-95 mg/day
RDA=60-100 mg/man/day

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List of chemical activities.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Activity Dosage Reference
Antispasmodic 500-5,000 mg/day *
Antistress 500-1,000 mg *
Antisyndrome-X 1-4 g/day 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
Antitumor (Gastric) *
Antitumor (Lung) *
Antiulcer *
Antiviral 1-5 g/day *
Apoptotic 1-10 mM *
Asthma-preventive 1,000 mg/day/orl Pizzorno, J.E. and Murray, M.T. 1985. A Textbook of Natural Medicine. John Bastyr College Publications, Seattle, Washington (Looseleaf).
Beta-Adrenergic Receptor Blocker *
Beta-Glucuronidase-Inhibitor 1.5 g/day/man *
Calcium-Antagonist *
Cancer-Preventive Stitt, P. A. Why George Should Eat Broccoli. Dougherty Co, Milwaukee, WI, 1990, 399 pp.
Cardioprotective *
Cold-preventive 1-2 g/day Davies, S., and Stewart, A. 1990. Nutritional Medicine. Avon Books, New York. 509pp.
Collagenic *
Detoxicant *
Diuretic 700 mg/man/orl *
Fistula-Preventive Pizzorno, J.E. and Murray, M.T. 1985. A Textbook of Natural Medicine. John Bastyr College Publications, Seattle, Washington (Looseleaf).
Hypocholesterolemic 300-1,000 mg/day Davies, S., and Stewart, A. 1990. Nutritional Medicine. Avon Books, New York. 509pp.
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List of chemical plants.
Click on column headings to sort table by that column. *Unless otherwise noted all references are to (Duke, 1992)
Plant Name Plant Part Low Parts Per Million High Parts Per Million Standard Deviation Reference
Hydrastis canadensis Root 189.0 681.0 -0.3 *
Hylocereus guatemalensis Fruit 80.0 515.0 -0.3 Morton, J.F., Major Medicinal Plants. 1977. Atlas of Medicinal Plants of Middle America. Bahamas to Yucatan. 1981.
Hylocereus undatus Fruit 80.0 515.0 -0.3 CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses
Hypericum perforatum Plant 1300.0 -0.3 ANON. 1948-1976. The Wealth of India raw materials. Publications and Information Directorate, CSIR, New Delhi. 11 volumes.
Hypericum perforatum Seed 395.0 -0.1 Watt, J.M. and Breyer-Brandwijk, M.G. 1962. The Medicinal and Poisonous Plants of Southern and Eastern Africa. E. & S. Livingstone, Ltd. Edinburg & London. 1457 pp.
Hypericum perforatum Leaf *
Hypericum perforatum Shoot 16.5 -0.4 *
Inga edulis Seed 130.0 355.0 -0.1 CRC Handbook of Medicinal Herbs and/or CRC Handbook of Proximate Analyses
Inula helenium Leaf List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979.
Inula helenium Root 4.4 20.0 -0.6 *
Ipomoea aquatica Leaf 320.0 7300.0 0.2 *
Ipomoea batatas Leaf 210.0 4234.0 -0.1 *
Ipomoea batatas Root 201.0 1186.0 0.0 *
Iris x germanica Leaf 4860.0 0.0 *
Iris x germanica Root 870.0 -0.1 *
Iris x germanica Flower 4200.0 0.5 *
Juglans nigra Pericarp *
Juglans nigra Hull Husk *
Juglans nigra Fruit 0.0 -0.3 *
Juglans regia Fruit 4500.0 15000.0 0.6 List, P.H. and Horhammer, L., Hager's Handbuch der Pharmazeutischen Praxis, Vols. 2-6, Springer-Verlag, Berlin, 1969-1979.