Propolins and glyasperin a from stingless bee nests

Creator

Consolacion Y. Ragasa, Salle University Science and Technology
Richard Anthony F. Galian, De La Salle University-Manila
Virgilio D. Ebajo, De La Salle University-Manila
Remil M. Aguda, University of the Philippines Los Banos
Cleofas R. Cervancia, University of the Philippines Los Banos
Chien Chang Shen, National Research Institute of Chinese Medicine Taiwan

Issue Date

3-2015

Abstract

Chemical investigation of the dichloromethane extracts of the propolis collected from bee (Tetragonulabiroi Friese) hives in San Roque, Sorsogon, Philippines afforded propolin A (1), propolin E (2), propolinH (3), glyasperin A (4), squalene, a mixture of lupeol, α-amyrin and β-amyrin, and another mixtureof urs-12-en-3-one, olean-12-en-3-one and lup-12-en-3-one. The structures of 2–4 were elucidated byextensive 1D and 2D (COSY, HSQC, and HMBC) NMR spectroscopy, while 1 was identified by comparisonof its NMR data with 2.

Source or Periodical Title

Revista Brasileira de Farmacognosia

Volume

25

Issue

2

Page

177-179

Document Type

Article

Language

English

Subject

Glyasperin A, Philippine propolis, Propolin A, Propolin E, Propolin H, Tetragonula biroi

Recommended Citation

Ragasa, C.Y., Galian, R.A.F., Ebajo, V.D., Aguda, R.M., Cervancia, C.R., Shen, C.C. (2015). Propolins and glyasperin A from stingless bee nests. Revista Brasileira de Farmacognosia, 25 (2), 177-179. doi:10.1016/j.bjp.2015.03.006.

Identifier

doi:10.1016/j.bjp.2015.03.006.

Digital Copy

yes