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2012

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Automatic Recognition Of Freshwater Algae (Oscillatoria Sp.) Using Image Processing Techniques With Artificial Neural Network Approach / Awatef Saad Salem Saad, Awatef Saad Salem Saad Jan 2012

Automatic Recognition Of Freshwater Algae (Oscillatoria Sp.) Using Image Processing Techniques With Artificial Neural Network Approach / Awatef Saad Salem Saad, Awatef Saad Salem Saad

Student Works (2010-2019)

Cyanobacteria can be used as indicators to offer relatively exclusive information pertaining to ecosystem condition. Cyanobacteria react quickly and predictably to a broad range of pollutant. Thus provides potentially constructive early caution signals of worsening environment and the possible causes. Therefore the aim of this study is to develop an image processing and pattern recognition methods to detect and classify oscillatoria genus from Cyanobacteria found on tropical Putrajaya Lake (Malaysia). Computer-based image analysis and pattern recognition methods were used to construct a system that is able to identify, and classify selected Cyanobacteria genus automatically. An image analysis algorithm was implemented …

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Chromosomal Alterations And Gene Pathways Of Tongue And Cheek Squamous Cell Carcinoma / Vincent Chong Vui King., Vincent Vui King Chong Jan 2012

Chromosomal Alterations And Gene Pathways Of Tongue And Cheek Squamous Cell Carcinoma / Vincent Chong Vui King., Vincent Vui King Chong

Student Works (2010-2019)

Introduction: Tongue and cheek squamous cell carcinoma (SCC) have different behaviours. In order to understand these behaviours, there is a need to look into the chromosomal alterations and gene pathways that maybe associated with oral cancer at these sites. Therefore, the objective of this study is to determine the chromosomal aberrations and gene pathways involved in tongue and cheek SCC using high resolution array based comparative genomic hybridization (aCGH). Methodology: A genome wide screening with array CGH (SurePrint G3 CGH 1x1M microarray) was performed using gDNA from 20 snap frozen fresh tissues consisting of 12 tongue and 8 cheek SCC …

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Tissue Culture And Biological Activities Of Gardenia Jasminoides Ellis / Reza Farzinebrahimi, Reza Farzinebrahimi Jan 2012

Tissue Culture And Biological Activities Of Gardenia Jasminoides Ellis / Reza Farzinebrahimi, Reza Farzinebrahimi

Student Works (2010-2019)

In order to establish an efficient in vitro propagation protocol for Gardenia jasminoides Ellis, Murashige and Skoog (MS) and woody plant medium (WPM) with different concentrations and types of auxin and cytokinin were used. The leaf explants of G. jasminoides were cultured on MS and WPM medium containing 3% sucrose and different concentrations of NAA, IBA, IAA, 2,4-D as aux-in and TDZ & Kn as cytokinin with range of 0-5 mg l-1 in order to obtain callus, shoot and root formation. After 2 weeks, the callus was formed on both types of media sup-plemented with various hormones at different concentrations. …

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Evaluation Of Neurite Outgrowth Stimulation And Neuroprotective Activities Of Hericium Erinaceus Extracts On Cell Line Ng 108-15 / Lai Puei-Lene, Puei-Lene Lai Jan 2012

Evaluation Of Neurite Outgrowth Stimulation And Neuroprotective Activities Of Hericium Erinaceus Extracts On Cell Line Ng 108-15 / Lai Puei-Lene, Puei-Lene Lai

Student Works (2010-2019)

Neurotrophic factors play an indispensable role in the functionality and development of the nervous system. One of the well-studied neurotrophic factors is nerve growth factor (NGF), which is required for the growth and differentiation of dorsal root ganglion and sympathetic ganglion neurons. Studies have shown that the bioactive compounds - hericenones and erinacines of Hericium erinaceus (Bull.: Fr.) Pers., a medicinal mushroom widely used in Japan, Korea and China, can induce NGF synthesis in nerve cells. This temperate mushroom has been successfully domesticated in Malaysia and cultivated in lowland conditions. The aim of this study was to evaluate the synergistic …

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Association Between Dietary Pattern And Β-Carotene Intake With Oral Cancer Risk / Helen Ng Lee Ching, Helen Lee Ching Ng Jan 2012

Association Between Dietary Pattern And Β-Carotene Intake With Oral Cancer Risk / Helen Ng Lee Ching, Helen Lee Ching Ng

Student Works (2010-2019)

No abstract provided.

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Gene Expression Patterns Of Cheek, Gum And Tongue Squamous Cell Carcinoma / Amyza Mohammed Saleh, Amyza Mohammed Saleh Jan 2012

Gene Expression Patterns Of Cheek, Gum And Tongue Squamous Cell Carcinoma / Amyza Mohammed Saleh, Amyza Mohammed Saleh

Student Works (2010-2019)

Clinical evidence suggested that biological behavior as well as response to treatment is different in OSCC arising from the different anatomical locations of the mouth and could be influenced by the activation or/and inactivation of different genes and pathways. Objective: Gene expression analysis of OSCC from different sites of the oral cavity was conducted to determine if there were significant differences in the expression pattern that could be associated with clinical observations. Materials and Methods: Formalin-fixed paraffin-embedded tissues from OSCC from cheek, gum, tongue and non-cancerous oral mucosal from the matching sites were used in microarray experiments (DASL, Illumina) to …

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Alterations Of Microrna Expression Patterns In Human Cervical Carcinoma Cells (Ca Ski) Towards 1'S-1'-Acetoxychavicol Acetate (Aca) And Cisplatin (Cddp) / Phuah Neoh Hun, Neoh Hun Phuah Jan 2012

Alterations Of Microrna Expression Patterns In Human Cervical Carcinoma Cells (Ca Ski) Towards 1'S-1'-Acetoxychavicol Acetate (Aca) And Cisplatin (Cddp) / Phuah Neoh Hun, Neoh Hun Phuah

Student Works (2010-2019)

The main aims of this study were to investigate the combined effects of a natural compound 1’S-1’-acetoxychavicol acetate (ACA) with cisplatin (CDDP) on human cervical carcinoma cells Ca Ski, and to identify microRNAs (miRNAs) asscociated with response towards ACA and/or CDDP. Data obtained from MTT cell viability assays indicated that both ACA and CDDP induced dose- and time-dependent cytotoxicity on Ca Ski cells when used as a standalone agent. The in vitro studies also demonstrated that ACA potentiates the cytotoxic effects of CDDP when used in combination through synergistic interactions. The miRNA microarray was used to identify global miRNA expression …

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Chemical Constituents Of Goniothalamus Tapisoides / Rosalind Kim Pei Theng, Rosalind Pei Theng Kim Jan 2012

Chemical Constituents Of Goniothalamus Tapisoides / Rosalind Kim Pei Theng, Rosalind Pei Theng Kim

Student Works (2010-2019)

Goniothalamus tapisoides Mat Salleh, a plant from Annonaceae family, has been studied. Collected from Sarawak, the bark of this plant were dried and grounded before phytochemical study was performed. The chromatographic separation on the dichloromethane extracts of the bark gave eleven compounds – six known and five new. Six known compounds were identified as goniothalamin 1, pterodondiol 164, liriodenine 114, 9-deoxygoniopypyrone 15, benzamide 161 and cinnamic acid 155. Five new compounds are goniomicin A 157, goniomicin B 158, goniomicin C 159, goniomicin D 160 and tapisoidin 162.

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Population Genetics And Evaluation Of Diallel Cross Of Four Red Tilapia Populations In Malaysia / Kayal Vizi A/P Karuppannan, Kayal Vizi Karuppannan Jan 2012

Population Genetics And Evaluation Of Diallel Cross Of Four Red Tilapia Populations In Malaysia / Kayal Vizi A/P Karuppannan, Kayal Vizi Karuppannan

Student Works (2010-2019)

Tilapia is an important farmed freshwater fish in Malaysia. Tilapia farming was introduced in Malaysia in the 1940’s. In 2003, tilapia accounted 21,417 tons of total freshwater aquaculture production. Red hybrid is the most popular tilapia species cultured in Malaysia. One of the constraints faced by the industry is quality of fries. There are quite a number of private hatcheries in Malaysia producing tilapia fries and not much is known about their quality with respect to their genetic variability. Thus this study attempted to characterize the four study populations and one standard population, which were PKPS (PS), Bentong (BT), Enggor …

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Inclusion Of Lycium Barbarum, Psidium Guajava, Momordica Grosvenori And Garcinia Mangostana In Yogurt And Their Effects On Fermentation And Exopolysaccharide-Production / Elham Bagheri, Elham Bagheri Jan 2012

Inclusion Of Lycium Barbarum, Psidium Guajava, Momordica Grosvenori And Garcinia Mangostana In Yogurt And Their Effects On Fermentation And Exopolysaccharide-Production / Elham Bagheri, Elham Bagheri

Student Works (2010-2019)

Yogurt is popularly consumed because of its high digestibility, refreshing organoleptic properties and the healthy bacteria it contains. Milk incubated with starter culture (SC) at 41⁰C in the presence of plants (Momordica grosvenori, Psidium guajava, Lycium barbarum or Garcinia mangostana) water extract were studied to examine the effects on acidification, microbial growth, gelation and exopolysaccharide (EPS) content. Initial pH values (5.8-6.2) of the mixture of milk, plant water extract and SC were not different (p>0.05) from control (6.20; mixture of milk and SC). The rates of pH reduction for all herbal-yogurts (-0.40 pH unit/ hour), except G. mangostana and …

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Analysis Of Plastic Debris On Malaysia Beaches / Liyana 'Izzati Aris, Aris Liyana 'Izzati Jan 2012

Analysis Of Plastic Debris On Malaysia Beaches / Liyana 'Izzati Aris, Aris Liyana 'Izzati

Student Works (2010-2019)

Plastic debris is the main cluster of solid waste component present in the marine environment. Anthropogenic activities namely recreational and fishing activities are believed to contribute to the abundance of plastic debris (1 – 30 mm in size) especially along the beach. This study was undertaken to quantify and assess the degree of plastic debris buried in sand according to size with a view to classify such debris deposition at some Malaysian beaches. Another objective, the abundance distribution of the buried plastics was also studied in relation to the tidal zones of the beaches. Six selected beaches (in three different …

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Ecological Studies And Analysis Of Glucomannan Content In Selected Amorphophallus Spp. Of Peninsular Malaysia / Dahlia Shahbuddin, Dahlia Shahbuddin Jan 2012

Ecological Studies And Analysis Of Glucomannan Content In Selected Amorphophallus Spp. Of Peninsular Malaysia / Dahlia Shahbuddin, Dahlia Shahbuddin

Student Works (2010-2019)

A study was conducted to investigate the ecological parameters and glucomannan content of selected Amorphophallus spp. in Peninsular Malaysia. A survey and documentation of Amorphophallus spp. were carried out throughout Peninsular Malaysia and the ecological parameters were measured and quantified. The life cycle of A. paeoniifolius was studied over a period of one year and two locations, namely Jerantut, Pahang and Kuala Kangsar, Perak were selected for quadrat analysis of A. paeoniifolius and A. prainii. Samples of four Amorphophallus spp. were collected for determination of glucomannan content following the method by Megazyme International Ireland Limited (2004) and Wang et. al. …

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Homology Modeling Analysis Of Gstd3 From Drosophila Melanogaster / Kauthar Mohd Daud, Mohd Daud Kauthar Jan 2012

Homology Modeling Analysis Of Gstd3 From Drosophila Melanogaster / Kauthar Mohd Daud, Mohd Daud Kauthar

Student Works (2010-2019)

Glutathione S-transferase is a detoxifying enzyme that responsible in catalyzing the conjugation of electrophilic xenobiotics compound with the thiol group of glutathione by biotransforming it into hydrophilic compound that can be eliminated from the cells via ion channel transport system. In Drosophila melanogaster, its GSTs have been divided into many classes in which two of them are organism specific, delta and epsilon. Members of delta GSTs which consist of 10 members are located at 3R chromosome. However, in delta isoform 3, there is truncation of several amino acids including conserved tyrosine residue at positions 5 and 6. Since D3 has …

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Studies On Antioxidant And Cytotoxic Activities Of Dichloromethane Extract Of Marasmius Species / Teesilia Mohamed Nor, Teesilia Mohamed Nor Jan 2012

Studies On Antioxidant And Cytotoxic Activities Of Dichloromethane Extract Of Marasmius Species / Teesilia Mohamed Nor, Teesilia Mohamed Nor

Student Works (2010-2019)

Although much research has been focused on the therapeutic and medicinal effects of wild mushrooms, there is still paucity of information on the pharmacological properties of Marasmius species. The present study was undertaken to evaluate the cytotoxic and antioxidant activities of M. guyanensis (KUM 20044, KUM 20222, and KUM 20117), M. kanchingnensis (KUM 20160), Marasmius sp. (KUM 20067), M. ruforotula (KUM 20111, KUM 20112) and M. selangorensis (KUM 20181). Crude dichloromethane extracts were prepared from the mycelial biomass grown in liquid Glucose-Yeast-Malt- Peptone (GYMP) using a soxhlet extractor system. The cytotoxic effect of the Marasmius extracts was screened using Neutral …

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Waste Audit At Coconut-Based Industry And Vermicomposting Of Different Types Of Coconut Waste / Twana Abdulrazaq Tahir, Twana Abdulrazaq Tahir Jan 2012

Waste Audit At Coconut-Based Industry And Vermicomposting Of Different Types Of Coconut Waste / Twana Abdulrazaq Tahir, Twana Abdulrazaq Tahir

Student Works (2010-2019)

No abstract provided.

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Ionic Conductivity And Related Studies On Chitosan-Based Electrolytes With Application In Solar Cells / Mohd Hamdi Ali@Buraidah, Ali@Buraidah Mohd Hamdi Jan 2012

Ionic Conductivity And Related Studies On Chitosan-Based Electrolytes With Application In Solar Cells / Mohd Hamdi Ali@Buraidah, Ali@Buraidah Mohd Hamdi

Student Works (2010-2019)

The motivation in this work is to ensure that the chitosan biopolymer can be used as a host for ion conduction and used as an electrolyte in dye-sensitized solar cells (DSSCs). The conductivity of the chitosan-NH4I electrolytes was optimized by varying the NH4I concentration, blending chitosan with PVA and PEO and also by incorporating of ionic liquid (IL). The electrolytes were prepared by solution cast technique. FTIR results confirm complexation between polymer, NH4I and IL. Hydrogen bonding between chitosan and PVA and between chitosan and PEO are observed in the respective spectrum. XRD indicates that the amorphousness of pure chitosan, …

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Micropropagation, Antioxidant And Antimicrobial Activities Of Asparagus Officinalis Cv. Mary Washington In Vivo And In Vitro / Arash Khorasani Esmaeili, Arash Khorasani Esmaeili Jan 2012

Micropropagation, Antioxidant And Antimicrobial Activities Of Asparagus Officinalis Cv. Mary Washington In Vivo And In Vitro / Arash Khorasani Esmaeili, Arash Khorasani Esmaeili

Student Works (2010-2019)

In recent years there has been renewed interest in natural medicines that are obtained from plant parts or plant extracts. Asparagus officinalis is a herbaceous perennial plant that belongs to Liliaceae family, a valued vegetable for its medicinal properties. The present study was carried out in order to establish an efficient in vitro propagation protocol for Asparagus officinalis. For this purpose, the nodal explants of Asparagus officinalis Cv. Mary Washington were cultured on MS medium containing 3% sucrose and different concentrations of NAA and BAP or IBA and Kn, mixed or separately with range of 0-1.5 mg/l for BAP/Kn and …

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Method Development And Analysis Of Cypermethrin And Λ-Cyhalothrin In Palm Oil Matrices And Soil Samples By Gas Chromatography / Badrul Hisyam Zainuddin, Zainuddin Badrul Hisyam Jan 2012

Method Development And Analysis Of Cypermethrin And Λ-Cyhalothrin In Palm Oil Matrices And Soil Samples By Gas Chromatography / Badrul Hisyam Zainuddin, Zainuddin Badrul Hisyam

Student Works (2010-2019)

determination of cypermethrin and λ-cyhalothrin residues in crude palm oil (CPO), crude palm kernel oil (CPKO), and soil samples using gas chromatography with electron capture detector (GC-ECD). The first half of the thesis studied the development and optimization of pesticides extraction from palm oil samples. Sample preparations were divided into two parts. The first part was the extraction step based on low-temperature extraction technique. Factors such as acetonitrile volume, decanting the liquid phase from the precipitated oil after low-temperature precipitation, and the freezing time were studied and optimized. In the second part, two different clean-up methodologies were tested for co-extractives …

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Fertility Responses And Hormone Profiles Of Synchronized Different Breed Of Cows From Different Farming Systems / Syafnir, Syafnir Syafnir Jan 2012

Fertility Responses And Hormone Profiles Of Synchronized Different Breed Of Cows From Different Farming Systems / Syafnir, Syafnir Syafnir

Student Works (2010-2019)

The objectives of this study were to determine the efficiency of controlled internal drug release (CIDR) to synchronize estrus in cow, and to study the success rate of estrus synchronization and fertility responses with respect to animal’s breed, farming system and body condition score (BCS). The study was conducted between January 2007 to December 2008 in three private farms in Gua Musang, Kelantan. The cows aged between 3 to 7 years old were of Charolais crossbreds (n=52), Brahman crossbreds (n=13) and Kedah-Kelantan (n=37) breed. All cows were subjected to estrus synchronization with CIDR. On day 0, CIDR implant with estradiol …

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In Vitro Antibacterial Activity Of Medicinal Lucilia Cuprina Larvae (Diptera: Calliphoridae) Against Selected Pathogenic Bacteria / Teh Chien Huey, Chien Huey Teh Jan 2012

In Vitro Antibacterial Activity Of Medicinal Lucilia Cuprina Larvae (Diptera: Calliphoridae) Against Selected Pathogenic Bacteria / Teh Chien Huey, Chien Huey Teh

Student Works (2010-2019)

Maggot Debridement Therapy (MDT) is a type of biosurgery involving the intentional application of live, disinfected fly larvae into the chronic non-healing wounds of human or animal to debride the necrotic tissue and disinfect the infected wounds. Many studies have demonstrated the potent antibacterial activity of Lucilia sericata larval excretions/secretions against bacteria, however, the antibacterial activity of the local strain of blowfly, L. cuprina (Wiedeman) larval extract against bacteria has never been determined, although MDT using L. cuprina larvae was successfully conducted. In view of this, the objectives of this study are to develop a procedure for the production of …

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Identification Of Components In Extracts Of Hericium Erinaceus (Bull.: Fr.) Pers That Stimulate In Vitro Neurite Outgrowth Of Ng108-15 / Wong Yuin Teng, Yuin Teng Wong Jan 2012

Identification Of Components In Extracts Of Hericium Erinaceus (Bull.: Fr.) Pers That Stimulate In Vitro Neurite Outgrowth Of Ng108-15 / Wong Yuin Teng, Yuin Teng Wong

Student Works (2010-2019)

Hericium erinaceus, locally known as cauliflower mushroom, and elsewhere as lion’s mane mushroom, Houtou (monkey head mushroom), Yamabushitake and Harisenbon (balloon fish), is an edible mushroom. It is well known for its medicinal and nutritional values. Hericium erinaceus is reported to have good anti-tumor properties and nerve tonic effects. Although H. erinaceus is a temperate mushroom, it has been successfully cultivated in Malaysia. However, there are very few reported studies on the chemical constituents that stimulate the neurite outgrowth for the locally cultivated species. The crude aqueous ethanol extract of H. erinaceus and its fractionated extracts (hexane, ethyl acetate and …

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Establishment Of Molecular Breeding Lines For Aroma In Rice / Yeap Hui Yin, Hui Yin Yeap Jan 2012

Establishment Of Molecular Breeding Lines For Aroma In Rice / Yeap Hui Yin, Hui Yin Yeap

Student Works (2010-2019)

Aroma is one of the most important traits of aromatic rice grain quality after grain appearance, amylose content, gelatinization temperature and kernel elongation. The genetic control and environmental variation of this trait are reported to be quite complex. To screen and select the F1 individuals with aroma, four molecular markers namely, EAP, ESP, INSP, and IFAP were used in this study together with sensory evaluation. The F1 individuals were obtained from different crosses between Malaysian local rice varieties (MR 219 and MRQ 50) with seven selected aromatic rice varieties from global popular aromatic rice cultivars and advance lines. The F1 …

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Antioxidant And Antimicrobial Activities Of Sonneratia Albain Vitro And In Vivo : Comparative Study With Rhizophora Mucronata And Bruguiera Gymnorrhiza / Md. Imdadul Haq, Haq Md. Imdadul Jan 2012

Antioxidant And Antimicrobial Activities Of Sonneratia Albain Vitro And In Vivo : Comparative Study With Rhizophora Mucronata And Bruguiera Gymnorrhiza / Md. Imdadul Haq, Haq Md. Imdadul

Student Works (2010-2019)

The present study evaluated the antioxidant and antimicrobial potential of three mangrove species namely, Sonneratial alba, Rhizophora mucronat and Bruguiera gymnorrhiza. The bioactivities of methanol, ethanol and chloroform extracts of in vivo and in vitro explants of S. alba and in vivo explants of R. mucronata and B. gymnorrhiza were evaluated. The effects of growth regulators on seed germination of S. alba, to obtain the in vitro explants, were also studied. In the first part of bioactivity study, total phenolic contents were detected by using the Folin-ciocalteu assay. Ethanol extract of leaves of R. mucronata had the highest result for …

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Dynamics And Trophic Role Of Zooplankton Community In The Matang Mangrove Estuaries And Adjacent Coastal Waters (Peninsular Malaysia), With Special Emphasis On Copepods / Chew Li Lee, Li Lee Chew Jan 2012

Dynamics And Trophic Role Of Zooplankton Community In The Matang Mangrove Estuaries And Adjacent Coastal Waters (Peninsular Malaysia), With Special Emphasis On Copepods / Chew Li Lee, Li Lee Chew

Student Works (2010-2019)

Dynamics and trophic role of zooplankton community were studied in the Matang mangrove estuaries and adjacent coastal waters, Malaysia. Monthly zooplankton samples collected from May 2002 to October 2003 at five stations located from the upper estuary (7 km upstream) to 16 km offshore showed highest biomass and abundance of zooplankton at nearshore waters. Both standing stocks decreased towards upstream and offshore waters. Copepods (62% of total zooplankton abundance) dominated the zooplankton, followed by larvae of cirripede (18%) and polychaete (4%). Copepod abundance was higher during the wetter northeast (NE) monsoon and inter-monsoon (IN) period as compared to the drier …

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Examining The Factors Of Functional (Healthy) Food Purchase In Kuala Lumpur / Teh Chye Beng, Chye Beng Teh Jan 2012

Examining The Factors Of Functional (Healthy) Food Purchase In Kuala Lumpur / Teh Chye Beng, Chye Beng Teh

Student Works (2010-2019)

No abstract provided.

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A Study On Consumer Purchase Intention For Green Personal Care And Cosmetic Products In Malaysia / Yim Siew Mei, Siew Mei Yim Jan 2012

A Study On Consumer Purchase Intention For Green Personal Care And Cosmetic Products In Malaysia / Yim Siew Mei, Siew Mei Yim

Student Works (2010-2019)

No abstract provided.

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Comparative Study Of Bioethanol Production From Rotten Grape And Apple Fruits As Renewable Energy And Waste Management / Norah Hammad Alhawiti, Norah Hammad Alhawiti Jan 2012

Comparative Study Of Bioethanol Production From Rotten Grape And Apple Fruits As Renewable Energy And Waste Management / Norah Hammad Alhawiti, Norah Hammad Alhawiti

Student Works (2010-2019)

Biomass of various sources such as those of cellulosic and hemicellulosic contents were proven to produced bioethanol. This study focused on the production of bioethanol from waste fruits of grapes and apples using yeast Saccharomyces cerevisiae, which is viewed as a mean of reducing environmental pollution. High bioethanol production was obtained using yeast loading of 4 g/L at 32°C after 3 days of fermentation time producing bio-ethanol 13.1% (v/v) and 9.2% (v/v) in rotten grapesand apples respectively. Bioethanol yeild was observed to decreased with increasing fertmentation time beyond 3 days, probably due to microbial wastes such as CO2 that accumulates …

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Germination, Regeneration And Pigment Detection In Nelumbo Nucifera Gaertn. (Pink Asian Lotus) / Noraini Binti Mahmad, Noraini Mahmad Jan 2012

Germination, Regeneration And Pigment Detection In Nelumbo Nucifera Gaertn. (Pink Asian Lotus) / Noraini Binti Mahmad, Noraini Mahmad

Student Works (2010-2019)

In vivo and in vitro germination of three types of seeds including matured (black), immature or fruits (green) and young (yellow) of Nelumbo nucifera Gaertn. (pink Asian lotus) were done. The black and green seeds both gave the highest responses to technique of scarified with medium-sand paper and germinated in liquid (tap water) and solid (MS basal media) substrates. The black seeds with germination rate of 67.01±0.28% in vivo and 78.35±0.61% in vitro, while, green seed with 75.12±0.16% in vivo and 100.00% in vitro germination. The highest shoot length in seeds without cotyledon for black and green seed with 28.00±0.55 …

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Effect Of Selected Bacteria On The Antibacterial And Antioxidant Activities Of Centella Asiatica / Arash Rafat, Arash Rafat Jan 2012

Effect Of Selected Bacteria On The Antibacterial And Antioxidant Activities Of Centella Asiatica / Arash Rafat, Arash Rafat

Student Works (2010-2019)

The role of selected naturally distributed bacteria on the antibacterial and antioxidant activities and production of phenolic compounds in one of the most important Asian medicinal plants namely Centella asiatica was investigated based on the effects of beneficial and pathogenic bacteria on the metabolic pathways of plants as reported in literature. Firstly, antibacterial and antioxidant properties and production of phenolic compounds of two subspecies of C. asiatica which are commonly used in Malaysia (University of Malaya Herbarium Voucher Specimens: KLU047364 and KLU047552) were evaluated and the most potent of them was chosen for the rest of the study. Different antioxidant …

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Cytotoxic And Apoptotic Activities In Selected Phyllanthaceae Species Of Malaysia / Sujatha A/P Ramasamy, Sujatha Ramasamy Jan 2012

Cytotoxic And Apoptotic Activities In Selected Phyllanthaceae Species Of Malaysia / Sujatha A/P Ramasamy, Sujatha Ramasamy

Student Works (2010-2019)

Phyllanthaceae species have been extensively used in folk medicine in most tropical and subtropical countries for thousand of years. However, there is a paucity of information on the cytotoxic properties of these plants. Therefore, the present study was undertaken to evaluate the cytotoxic and apoptotic activity of crude methanol (CME), hexane (CHE) and ethyl acetate (CEE) extracts of the selected Phyllanthaceae species collected from different parts of Peninsular Malaysia, namely Phyllanthus niruri (dukong anak), P. pectinatus (Pokok Melaka), P. acidus (cermai), P. roseus (Labu Kuncing), P. watsonii and Baccaurea motleyana (rambai). Cytotoxic activities were screened using an in vitro assay …

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