| CITRICACID |
Economic & Medicinal Plant Research, 6: 235. |
| FUMARICACID |
Williamson, E. M. and Evans, F. J., Potter's New Cyclopaedia of Botanical Drugs and Preparations, Revised Ed., Saffron Walden, the C. W. Daniel Co., Ltd., Essex UK, 362 pp, 1988, reprint 1989. |
| MALICACID |
Economic & Medicinal Plant Research, 6: 235. |
| MATRINE |
Jeffery B. Harborne and H. Baxter, eds. 1983. Phytochemical Dictionary. A Handbook of Bioactive Compounds from Plants. Taylor & Frost, London. 791 pp. |
| OXYMATRINE |
Duke, 1992 * |
| SOPHOCARPINE |
Duke, 1992 * |
| TOCOPHEROL |
Hagerman, A.E. Tannin-Protein Interactions. Phenolic Compounds in Food and Their Effects on Health, Ch.19. |