Research List

No.	Researcher	Title	Abstract	Year
1701	Yin Yin Khaing	HISTOLOGICAL CHARACTERS, NUTRITIONAL VALUES OF FRUITS FROM ZANTHOXYLUM ARMATUM DC. AND ITS ANTIMICROBIAL ACTIVITY	Zanthoxylum armatum DC. is an aromatic medicinal plant belonging to the family Rutaceae has been undertaken. They were collected from Loikaw Township, Kayah State during from September to November 2019. The collected plants were identified, classified, and studied by the literature. The morphological characters of vegetative and reproductive parts and microscopical characters of the leaves and fruits were conducted to ascertain their correct identification. The plant was small tree with thorny branches. Leaves were distinctly trifoliate with wing leaf-stalk. Inflorescence were terminal, axillary and bracts presented. Petals were absent. For microscopical studies, lamina, midrib, petiole and fruits were examined by preparing free hand sections. The upper surface of the lamina was polygonal in shaped and lower surface was wavy. Stomata present only on lower surface were numerous and anomocytic type. In transverse section of lamina, calcium oxalate crystals were presented in palisade layer. The preliminary phytochemical tests were examined from the powdered fruits. Alkaloid, carbohydrate, flavonoid, glycoside and phenolic compound, saponin and tannin were present in this examination. The nutrient contents of powdered fruits were analyzed protein, fat, fiber and carbohydrate by using David Pearson and Kieldaha method. Antimicrobial activities of various crude extracts of fruits were carried out by using paper disc diffusion method with six test organisms. Acetone and ethyl acetate extracts indicated more effective against on Candida albicans than other tests organisms. Medicinal plants contained numerous biologically active compounds which are used for helpful in improving the human health.	2021
1702	Ohmmar Than	MORPHOLOGICAL CHARACTERS, ELEMENTAL ANALYSIS AND NUTRITIONAL VALUES OF DIOSPYROS DISCOLOR WILLD. (FRUIT)	Diospyros discolor Willd is known as velvet apple belong to the family Ebenaceae, collected from Bogyoke Village, Thanlyin Township, Yangon Region from January to May 2020. The morphological characters of this plant were identified by using of the literatures. Elemental analysis and nutritional values were carried out by using the powder samples of these fruits. In morphological characters, it is dioecious, evergreen and young leaves are pinkish to pale green. Male flowers are 3-flowered axillary racemes and female flowers are solitary axillary cymes. The female flowers are slightly larger than the male flowers. Sensory characters of powdered fruits were pale-brown, pungent odour, sweet taste, texture with the granular. In elemental analysis, the concentration of potassium was found to be 75.988%. Moreover, in nutritional values of the fruits, carbohydrate is found to be the highest 80.69%.	2021
1703	Khin Myo Win	PRELIMINARY PHYTOCHEMICAL INVESTIGATION AND NUTRITIONAL VALUE OF THE SMALLEST FLOWERING PLANT, WOLFFIA ARRHIZA (L.) HORKEL EX WIMMER. IN INNMA AREA, PYAY DISTRICT	Wolffia arrhiza (L.) Horkel ex Wimmer. is the smallest flowering plant. It is known as in local name Ye-au (water egg) and its belonging to the family of Lemnaceae. It is situated in the natural lake, Innma area of Pyay District. The Wolffia occurs in the form of colonies that form bright green mats over the surface of water. The specimens were collected on April, 2012 and September, 2019. In this paper, preliminary phytochemical examination and nutritional value of this plant has been undertaken. Preliminary phytochemical examination showed the presence of alkaloid, glycoside, phenolic compound, flavonoid, steroid, tannin, saponin, ?-amino acid, protein, reducing sugar, starch and carbohydrate. Nutritional value of the plant contains energy (230 kcal), proteins (27.12%) and carbohydrates (26.55%). Wolffia arrhiza (L.) Horkel ex Wimmer. provides rich in proteinaceous contents.	2021
1704	Moe Sandar Shein	THE STUDY ON WILD ORCHIDS AT YEE-AYE RESERVED FOREST OF KALAW TOWNSHIP IN SOUTHERN SHAN STATE (Part � 2)	The present work is concerned with the study on wild orchids of natural habitat in Yee Aye Reserved Forest in Kalaw Township. The Yee Aye Reserved Forest is situated in Kalaw Township of Taunggyi District and also the southern west part and 5.5 miles distance from Kalaw city. In this recent study 6 genera and 11 species were recorded from study area. The Yee Aye Hill wetland located in the centre of Yee Aye Reserved Forest. Most of the wild orchids were collected around the area of this Hill wetland. Epiphytic genera namely Bulbophyllum, Coelogene, Dendrobium, panisea, Luisia and Vanda were collected. Photographs have been taken to record habits of orchids in nature. The collected specimens were classified, identified and described with colour photographs of their natural habitats and inflorescence. The morphological characters have been emphasized and artificial keys from the tribe to the species have been constructed and GPS location system.	2021
1705	Win Win Khaing	IDENTIFICATION OF ISOLATED INDIGENOUS BACTERIA FROM NODULES OF PISUM SATIVUM L.	The present study is to focus describe and identify the specific bacteria from the nodules of Pisum sativum L. The plant samples were selected from the cultivated field of Kachin State and it carried out to the laboratory of Agricultural Microbiology Section, Agricultural Research Center, Yezin, Nay-pyi-daw. This research was conducted from November 2018 to December 2019. The media YEMA, CRYEMA and BTBYEMA were used as selective media for isolate bacteria. After culturing, colony characters and cell morphological characters of isolate bacteria were studied. Colonies of isolates were sticky appearance, circular, convex (raised), smooth, entire margin and white (translucent). Cell morphological characters were medium size, rod shaped, motility and gram-negative. Moreover, the characterization was done by biochemical tests. As results, the isolated indigenous bacteria were faster grower. The positive chemical reaction were showed Indole, Methyl red, Catalase, Urease hydrolysis, starch hydrolysis, Glucose peptone agar, Glucose, Sucrose and Mannitol tests. The negative chemical reactions were showed in lactose fermentation, Citrate utilization, Gelatin hydrolysis, Methyl blue and Mannitol salt agar experiments. According to the character results, isolated indigenous bacteria from nodules of Pisum sativum L. was confirmed as genus Rhizobium.	2021
1706	Myint Myint Khaing	PALYNOLOGICAL STUDY ON SOME SPECIES OF CONVOLVULACEAE FROM SHWEDAUNG TOWNSHIP	The pollen morphology of twelve species belonging to six genera of Convolvulaceae familiy were studied in the present paper. The pollen grains of all specimens were collected from Shwedaung Township, Bago Region (west). The pollen morphological characteristics of all species were studied. The aperture type and sculpture pattern of each grain were examined by electric microscope. Three types of aperture (tricolpate, pentacolpate and porate) and four types of exine sculpture echinate, granulate, reticulate and striato-reticulate are found. The outline of pollen images for each species were presented by polar and equatorial view and then were recorded by photomicrographs of clear cut pollen images and types of habit and flower.	2021
1707	Tin Tin Maw	TAXONOMIC STUDY ON TWELVE SPECIES OF ANGIOSPERMAE IN THARTHANAR-2500 HILLOCK, LASHIO AREA	The present study deals with the members of Angiospermae growing in Tharthanar-2500 Hillock, Lashio area. Some species are collected during December 2019 to June 2020. Some flowering plants from Tharthanar-2500 Hillock have been collected, identified and then morphological characteristic were studied. In this study, twelve species belonging to twelve genera of nine families were identified and systematically arranged according to APG IV system, 2016 (Angiosperm Phylogeny Group). Artificial key to the species, detail taxonomic descriptions of the individual species has also been described with relevant photographs. In addition, their flowering period, Myanmar names and English names were also described.	2021
1708	Wunna Tun	ISOLATION, IDENTIFICATION AND ANTIMICROBIAL ACTIVITY OF SOIL FUNGI	In this study, three different soil samples were collected from three Townships (North Oakkala, Mayangone and Insein) in Yangon Region. The soil type from North Oakkala and Insein was clay loam whereas that from Mayangone was sandy clay. Twenty-four soil fungi were isolated from three different soil samples by the serial dilution method. The forms of fungal colonies were circular, irregular, filamentous and rhizoid. The elevation of colonies was raised, convex, flat, umbonate while the margins of colonies of isolated fungi were entire, undulate, filiform, curled and lobate. Antimicrobial activity of isolated fungal strains was evaluated by the agar well diffusion method with eight test organisms: Agrobacterium tumefaciens, Escherichia coli, Staphylococcus aureus, Pseudomonas fluorescens, Bacillus subtilis, Bacillus pumilus, Malassezia furfur and Candida albicans. Among 24 isolates, seventeen strains showed different levels of antimicrobial activities. Among seventeen active strains, isolated fungal strains WT-14, 17 and 24 were moderately antimicrobial activity while seven strains WT-1, 2, 4, 7, 9, 13 and 15 showed highly antimicrobial activity against all test organisms. According to the morphological and microscopical characters of bioactive seven strains, six of them (strains WT-1, 2, 4, 9, 13 and 15) were identified as Aspergillus sp. while strain WT-7 was Rhizoctonia sp.	2021
1709	Myint Thu	EFFECTS OF CARBON AND NITROGEN SOURCES FOR THE GROWTH OF SOIL FUNGUS YY-13 AND ITS FERMENTATION OPTIMIZATION	In this study, fungal strain (YY-13) isolated from soil sample in Minhla Area, Magway Region were intended to produce antibacterial metabolites. In addition, it was focused on the growth and fermentation conditions of isolated soil fungus (YY-13) against Escherichia coli by using agar well diffusion method. Moderate growth and the best antibacterial activity of YY-13 were observed both in carbon and nitrogen sources. The addition of potato powder as a carbon sources resulted better growth and the inhibition zone reached (32.78 mm) in glucose. In the nitrogen sources, the maximum growth of YY-13 was found in peptone and the highest antibacterial activity was obtained by using the sodium nitrate (28.39 mm). The fermentation conditions of YY-13 were studied by the effect of age, size of inoculum, temperature, pH, static and shaking culture. In this investigation, YY-13 was found that 25% of size of inoculums and 84 hrs of age of old culture were suitable conditions. And then, the effects of different temperature and pH range were also determined. According to these studies, temperature 30 ?C and pH-6 were found to be the best conditions of antibacterial activity against E.coli. In the comparison of static culture and shaking culture of YY13, the static culture exhibited the higher antibacterial activity (26.91 mm) than that of shaking culture (20.38 mm).	2021
1710	Kyae Mhon Win	EXTRACTION OF ANTIBACTERIAL METABOLITES PRODUCED BY SLECTED SOIL FUNGUS (KM-16)	In the study, soil fungi were isolated from soil samples which were collected from the Pathein University Dhamma Yone campus and then air-dried at room temperature. After three days, ten different soil samples were isolated by feeding method and physical treatment dilution method. Thirty-one soil fungi were isolated from ten different soil samples. Among them isolated soil fungus KM-16 showed the highest antimicrobial activity against Escherichia coli. In this investigation, selected soil fungus (KM-16) was utilized by using paper chromatography for extracting of antibacterial metabolites. The extraction of antibacterial metabolites was carried out by Thin Layer Chromatography and antibacterial metabolites could be isolated from 20 Liters of fermented broth of KM-16.	2021

Research Publications

Myanmar Academy of Art & Science List of Research