Cacao Tannin | Nature


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ABSTRACT THE method most commonly used for the estimation of cacao tannin is by precipitation with cinchonine sulphate1,2,3. Duthie4 found that the filtrate from the cinchonine tannate gave


a precipitate on refluxing with formaldehyde and hydrochloric acid (Stiasny reagent). He suggested that this precipitate is a measure of catechin and similar phenolic compounds. Access


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SIMILAR CONTENT BEING VIEWED BY OTHERS SYNECOLOGY OF _LAGOECIA CUMINOIDES_ L. IN ITALY AND EVALUATION OF FUNCTIONAL COMPOUNDS PRESENCE IN ITS WATER OR HYDROALCOHOLIC EXTRACTS Article Open


access 27 November 2023 ENHANCEMENT OF PHENOLICS CONTENT AND BIOLOGICAL ACTIVITIES OF LONGAN (_DIMOCARPUS LONGAN_ LOUR.) TREATED WITH THERMAL AND AGEING PROCESS Article Open access 05 August


2021 CHEMICAL INSIGHT INTO PROS AND CONS OF COFFEES FROM DIFFERENT REGIONS Article Open access 02 January 2025 REFERENCES * Hooper, D., _Analyst_, 50, 162 (1925). Article  ADS  CAS  Google


Scholar  * Jensen, H. R., _Analyst_, 53, 365 (1928). Article  ADS  CAS  Google Scholar  * Adam, W. B., _Analyst_, 53, 369 (1928). Article  ADS  CAS  Google Scholar  * Duthie, D. W.,


_Analyst_, 63, 27 (1938). Article  ADS  CAS  Google Scholar  * Official and Tentative Methods of Analysis of the Association of Official Agricultural Chemists, 5th ed., 199 (1940). * Smith,


H. L., _Analyst_, 38, 312 (1913). Article  ADS  CAS  Google Scholar  * Chapman, A. C., _Analyst_, 38, 315 (1913). Article  Google Scholar  Download references AUTHOR INFORMATION AUTHORS AND


AFFILIATIONS * Imperial College of Tropical Agriculture, Trinidad, B.W.I. E. C. HUMPHRIES Authors * E. C. HUMPHRIES View author publications You can also search for this author inPubMed 


Google Scholar RIGHTS AND PERMISSIONS Reprints and permissions ABOUT THIS ARTICLE CITE THIS ARTICLE HUMPHRIES, E. Cacao Tannin. _Nature_ 152, 569 (1943). https://doi.org/10.1038/152569a0


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