UPSI Digital Repository (UDRep)
|
UPSI Digital Repository (UDRep)
|
|
|
|
||||||||||||||||||||||||||||||
| Abstract : Universiti Pendidikan Sultan Idris |
| Polyalthia is one of the largest and most notable genera in the Annonaceae family, with approximately 346 species. Polyalthia is a palaeotropical genus with a wide distribution, particularly in Southeast Asia [1]. It is considered to be of medicinal importance because of the presence of clerodane diterpenoids and alkaloids in various parts of the plant [2]. There are several reports on the composition of the essential oils of the Polyalthia species [3]. Polyalthia hookeriana King is commonly found in Malaysia and Singapore. It is a tree and shrub that can grow up to 21 metres tall. The flower has six petals in two whorls, the inner petals curving inward over the centre [4]. The literature search did not reveal any reports on the essential oil composition of P. hookeriana. Herein, we describe the chemical composition of the essential oil of P. hookeriana as well as its acetylcholinesterase inhibitory activity. The leaves of P. hookeriana were collected from Behrang, Perak, in September 2020 and identified by Shamsul Khamis from UKM. The voucher specimen (SK26/19) was deposited at the Herbarium of UKM. The essential oil was obtained by hydrodistillation (4 h) of the fresh leaves (250 g) using a Clevenger-type apparatus. The oil yield was 0.18% based on the fresh weight. The chemical composition of the isolated oil was analyzed by GC-FID and GC-MS under conditions analogous to those published before [5]. For the identification of essential oil components, co-injection with the standards was used, along with correspondence of retention indices and mass spectra with respect to those occurring in the literature [6]. |
| References |
Brophy, J. J., Goldsack, R. J., & Forster, P. I. (2001). Leaf oils of the australian species of polyalthia (annonaceae). Journal of Essential Oil Research, 13(1), 5–7. https://doi.org/10.1080/10412905.2001.9699587 Dai, D. N., Huong, L. T., Hung, N. H., Thang, T. D., & Ogunwande, I. A. (2014). Chemical compositions of essential oils of selected medicinal plants from thùa thiên-hu province, vietnam. Journal of Herbs, Spices and Medicinal Plants, 20(3), 269–281. https://doi.org/10.1080/10496475.2013.865007 dos Santos, E., Radai, J. A. S., do Nascimento, K. F., Formagio, A. S. N., de Matos Balsalobre, N., Ziff, E. B., Castelon Konkiewitz, E., & Kassuya, C. A. L. (2022). Contribution of spathulenol to the anti-nociceptive effects of Psidium guineense. Nutritional Neuroscience, 25(4), 812–822. https://doi.org/10.1080/1028415X.2020.1815330 Salleh, W. M. N. H. W., Ahmad, F., Khong, H. Y., & Mohamed Zulkifli, R. (2016). Comparative study of the essential oils of three Beilschmiedia species and their biological activities. International Journal of Food Science and Technology, 51(1), 240–249. https://doi.org/10.1111/ijfs.12962 Salleh, W. M. N. H. W., Hashim, N. A., Ahmad, F., & Yen, K. H. (2014). Anticholinesterase and antityrosinase activities of ten Piper species from Malaysia. Advanced Pharmaceutical Bulletin, 4, 527–531. https://doi.org/10.5681/apb.2014.078 Salleh, W. M. N. H. W., Shakri, N. M., Jauri, M. H., & Nafiah, M. A. (2022). Alkaloids and Flavonoids from Polyalthia cauliflora. Chemistry of Natural Compounds, 58(5), 986–988. https://doi.org/10.1007/s10600-022-03850-3 Shakri, N. M., Salleh, W. M. N. H. W., Khamis, S., Mohamad Ali, N. A., & Shaharudin, S. M. (2020). Chemical composition of the essential oils of four Polyalthia species from Malaysia. Zeitschrift Fur Naturforschung - Section C Journal of Biosciences, 75(11), 473–478. https://doi.org/10.1515/znc-2020-0097 |
| This material may be protected under Copyright Act which governs the making of photocopies or reproductions of copyrighted materials. You may use the digitized material for private study, scholarship, or research. |