Pinapple leaves contain various phenolic constituents. - GreenMedInfo Summary
[Studies on phenolic constituents from leaves of pineapple (Ananas comosus)].
Zhongguo Zhong Yao Za Zhi. 2006 Aug;31(15):1242-4. PMID: 17048566
Department of Biological Sciences and Biotechnology, Tsinghua University, Beijing, China.
OBJECTIVE: To study the phenolic constituents of the leaves of pineapple. METHOD: Chromatographic methods were used to isolate compounds from the leaves of pineapple and spectroscopic methods were used to identify the structures of the isolated compounds. RESULT: 7 compounds, ananasate (1), 1-O-caffeoylglycerol (2), 1-O-p-coumaroylglycerol (3), caffeic acid (4), p-coumaric acid (5), beta-sitosterol (6) and daucosterol (7), were isolated from the leaves of pineapple. CONCLUSION: 1 was a new compound, and others were obtained from this plant for the first time.