Fluorescence study of natural anthraquinones and chemical constituents of Boesenbergia stenophylla / Nabila Elyana Adnan
Anthraquinones have significant economic values as dyes and pigments and attracted many interests in advanced studies focusing on optical spectroscopy and photochemistry properties. However, these studies are based on unnatural anthraquinones obtained synthetically. The present dissertation work...
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| Format: | Thesis |
| Published: |
2018
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| Subjects: | |
| Online Access: | http://studentsrepo.um.edu.my/9552/1/Nabila_Elyana_Adnan.pdf http://studentsrepo.um.edu.my/9552/8/nabila.pdf http://studentsrepo.um.edu.my/9552/ |
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| Summary: | Anthraquinones have significant economic values as dyes and pigments and attracted
many interests in advanced studies focusing on optical spectroscopy and photochemistry
properties. However, these studies are based on unnatural anthraquinones obtained
synthetically. The present dissertation work focused on the fluorescence study of natural
anthraquinones isolated from Morinda citrifolia. Ten known anthraquinones obtained
from the roots of M. citrifolia have been subjected to the fluorescence study. The effects
of substituent groups and intramolecular hydrogen bonding on the fluorescence properties
were investigated. The present dissertation work also focused on the phytochemical
studies of Boesenbergia stenophylla. B. stenophylla from the family of Zingiberacea, is a
perennial rhizomatous herb that can be found in the highland areas of Sarawak, Malaysia.
In the present study, two new and two known compounds were isolated from B.
stenophylla. All the compounds were isolated and characterized using extensive
chromatographic and spectroscopic methods. Several of these compounds were selected
for antioxidant assay for their ferric reducing antioxidant power (FRAP). |
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