Vanillin-Hydrochloric Acid as a Histochemical Test for Tannin
- 1 January 1975
- journal article
- research article
- Published by Taylor & Francis in Stain Technology
- Vol. 50 (5), 315-317
- https://doi.org/10.3109/10520297509117081
Abstract
Condensed tannin (leucoanthocyanins and catechins) can be demonstrated in fresh plant sections with saturated alcoholic vanillin followed by addition of concentrated HC1. Bright red vanillin-tannin condensates are formed immediately. Preparations may then be made permanent by mounting in a 1:1 mixture of Hoyer's medium and concentrated HC1. Some fading and loss of tannin occurs. The phloroglucinol-HC1 test for lignin can also be made permanent with this acidic mountant.Keywords
This publication has 9 references indexed in Scilit:
- A Miracle Mounting Fluid for Permanent Whole-Mounts of MicrofungiMycologia, 1972
- Systematic Anatomy of the Flower and Fruit of CorokiaAmerican Journal of Botany, 1966
- Changes in tannins in ripening fruitsPhytochemistry, 1963
- The Role of Tannins in Neutral Red Staining of Pine Leaf VacuolesStain Technology, 1963
- Histochemistry and function of the endodermisThe Botanical Review, 1961
- Theogallin, a polyphenol occurring in teaJournal of the Science of Food and Agriculture, 1954
- Leuco-anthocyanins. 2. Systematic distribution of leuco-anthocyanins in leavesBiochemical Journal, 1954
- Histochemical Tests for Polyphenols in Plant TissuesStain Technology, 1951