Provenance trial of Eurycoma longifolia is currently being carried out in order to provide necessary information for breeding strategies, which is crucially needed for the production of high quality planting materials. Assessment of polysaccharides content in the root part of the plant is taken among the important characteristics in the selection of the best provenance. Polysaccharides compound is chosen as bioactive marker due to the non-toxicity nature of the compound and potential pharmacological properties possessed. Polysaccharides compound of the root part is extracted by using water extract procedure from nine selected provenances (Johor, Melaka, Pahang A, Pahang B, Pahang D, Perak, Pulau Pinang, Selangor and Terengganu) of E. longifolia collected throughout forest reserves of Peninsular Malaysia. The analysis of the actual weight of the compound is conducted using phenol-sulfuric acid method by UV-VIS and High Performance Liquid Chromatography (HPLC) is used for the detection of structural components of the polysaccharides compound. The assessment showed that polysaccharides content in the root part of Terengganu provenance significantly has the highest with 1.06 % actual weight of polysaccharides (out of 30 g extracted dry roots). Meanwhile, there are four provenances showed undetectable range of polysaccharide content which were Melaka, Pahang A, Pulau Pinang and Selangor. In a nutshell, based on the preliminary assessment of polysaccharide content alone, Terengganu provenance has the potential to be declared among the best provenances that has high quality. The provenance trial also has taken into considerations several important parameters such as the growth performances variation and the tolerance of the plants to pests and diseases besides the phytochemical screening. Provenance trial of E. longifolia is still ongoing, data for various parameters are still being collected, and thus it is still too early to derive a conclusion of which is the best provenance.
Labisia pumila, locally known in Malaysia as Kacip Fatimah, is highly-prized for its phenols. Phenolic compounds in L. pumila has numerous pharmacological properties such as having anti-oxidant, anti-microbial, anti-inflammatory and anti-cancer potential. The production of phenolic contents in plants is influence by various factor, including abiotic factors such as soil properties. Thus, the objective of this study was to determine the effects of different combinations of growing media on the growth and total phenolic content in L. pumila leaves. Six combinations of growing media were used, each using different types of compost that had differing amounts of L. pumila leaves. The plants were grown in all media for a period of six months at FRIM’s nursery. Besides growth performance, the total phenolic content was also determined, six months after planting. There was no significant difference in growth parameters for all treatments, with the exception of control (significantly lower than all treatments). However, the total phenolic content of Treatment 1 (80.6 mg GAE/g) was significantly higher than all other treatments. This can be attributed to the properties of Compost 1 (which was in the growth media of Treatment 1), as it had the highest pH (5.26), the highest potassium concentration (0.7%) and high nitrogen concentrations (1.32%). The composition of Compost 1 was 5 kg dry leaves + 500 g dry Kacip Fatimah + Slow Release Fertilizer (SRF). Results from this study showed that growing media is a key factor that leads to significant increment in phenolic compounds in L. pumila.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.