Sunita Chamyuang

Mae Fah Luang University | MFU · School of Science

The work undertaken explored the potential for discovery of new bioactive metabolites from soil fungi. The research developed selective mycological isolation techniques and maximised metabolite production from active selected fungi by application of the OSMAC approach and concept of hormesis. Novel active compounds were discovered and many other kn...

Six saprobic fungal isolates were assayed for the in vitro antimicrobial activity against nine pathogenic microorganisms. The results showed that four fungal isolates including Clonostachys rosea MFLU10-0261, Fusicoccum aesculi MFLU10-0260, MFLU10-0266, and Ophioceras cf. leptosporum MFLU10-0281 were effective inhibitors against some test microorga...

Agaricus subrufescens (almond mushroom) was first collected in America, but has been cultivated worldwide due to its medicinal properties. The potential health promoting benefits of A. subrufescens have been emphasized in several reports and include tumor growth reduction, antimicrobial, immunostimulatory and anti-allergy effects. A unique class of...

The wild edible mushroom Macrolepiota dolichaula is widely consumed in China, India and northern Thailand as seasonal delicacies. Optimal cultural conditions, spawn production, cultivation parameters in compost and an outdoor method for inoculating spawn of M. dolichaula in orchard soils were investigated. Among the nine media tested, the optimum m...

Alzheimer's disease (AD) is a multifactorial neurodegenerative disease which is mainly characterized by progressive impairment in cognition, emotion, language and memory in older population. Considering the impact of AD, formulations of pharmaceutical drugs and cholinesterase inhibitors have been widely propagated, receiving endorsement by FDA as a...

Natural products have long garnered the interest of scientific communities as they have proven to be an effective therapeutic resource that paved the path for medicinal research and drug development. Among them, Cordyceps militaris is an entomopathogenic caterpillar fungus with a renowned history of being utilized as a medicinal remedy for centurie...

Riceberry rice is a whole grain rice variety, which is rich in vitamin E, anthocyanin, phenolic acids, flavonoids, phytosterol antioxidants and fiber. The nutritional of Riceberry rice could be further improved by germination process, with this process the g-aminobutyric acid (GABA) in rice samples is increased. Furthermore, solid stage fermentatio...

Rice is the staple food for more than half of the world's population. In recent years, awareness of the health benefits of colored rice varieties and germinated rice has gradually increased. Riceberry rice (R), a black-purple variety, was germinated and subsequently fermented with Pleurotus ostreatus mycelium (M) to improve nutrient quality and pre...

This study aimed to utilize the waste from the coffee bean production process as high value-added material. Pectin extracted from the coffee pulp was classified as low methoxyl pectin (LMP) with the Degree of Esterification (DE) at 33.33 % For further application or upscaling production, the coffee pulp was boiled to retrieve the highest yield at 1...

Vinegar is fermented product from alcoholic and acetic acid fermentation which can be made from various material such as crops, fruits and honey. Microorganisms, yeast and AAB, and substrate are key for vinegar production which can determine the quality and production time of vinegar. This study aims to use the isolated yeast and AAB from homemade...

Two common types of glutinous rice, Khao Niew Dam (KK) and Khao Niew Kiew Ngu (KN), found in Chiang Rai, Thailand were selected to study the feasibility to be the raw material for vinegar production. The malting process is a key role to gain the sufficient sugar content for wort preparation which is used as the substrate for the vinegar fermentatio...

Cordycepin, 3’-deoxyadenosine, is a nucleoside analog of adenosine, which was first isolated in 1950 from Cordyceps militaris. The compound possesses various biological activities including antitumor, anti-diabetic, immunomodulatory and anti-bacterial effects (1). Cordycepin is considered a chemical marker for fungi in the genus Cordyceps.

Bacterial cellulose (BC) is a biological material, which is naturally produced by acetic acid bacteria (AAB). Bacterial cellulose has been used as an agent in various industrial applications, such as food, biomaterial, cosmetic and medical industries. The aim of this study was to use low-cost materials to investigate the optimum condition to produc...

Bacterial cellulose (BC) is widely used in various applications. To apply in biomedical use, the natural BC and low-cost production should be considered. The aim of this study was to apply the spent coconut water (SCW) as supplement in the culture medium to produce high yield of BC. An acetic acid bacterium, Komagataeibacter nataicola (formerly Ace...

Macrolepiota is a genus of white spored, gilled mushroom of the family Agaricaceae which are widely distributed in tropical and temperate countries. In this study, five wild edible Macrolepiota species were collected from Chiang Rai and Chiang Mai provinces during the rainy season of 2013-2014. All species were characterized up to species level con...

As part of our efforts to study the saprobic mushrooms in Asia, we made three collections of Clitopilus in northern Thailand. Two of the three collections were identified, based on morphological and molecular analyses, as Clitopilus chalybescens described from Khao Yai National Park, Thailand. The third collection is a new species, Clitopilus doima...

Macrolepiota dolichaula, an edible white spored gilled mushroom, is widely distributed in tropical and temperate countries. In this study, nutritional quality of M. dolichaula strain MFLUCC-13-0579 cultivated in compost was investigated. Proximate analysis of dry weight of M. dolichaula showed a composition of 25.53% protein, 44.37% carbohydrate, 1...

A new record of Lopadostoma fagi is described in Italy from Fagus sylvatica based on morphological and molecular data. It has effused-pulvinate stromata immersed in the host tissue, with a narrow, black, carbonized encasement. The ectostromatic disc is visible as a clypeus and surrounded by the reddish brown bark surface. In the combined phylogenet...

The type specimens of Frondisphaeria, Immersisphaeria and Pulmosphaeria were re-examined in order to determine their familial placements according to modern taxonomic concepts. Type specimens of Lasiobertia and Yuea were redrawn from the original descriptions. Based on morphological evidences, Frondisphaeria palmicola is placed in Diatrypaceae. Imm...

The aim of this work was to study the effect of media, temperature and pH on the mycelial growth of Clitopilus chalybescens strain MFLUCC 13–0809 collected from Lampang, Thailand. The antioxidant and antibacterial activities from the crude mycelial extracts were evaluated. The study indicated that the optimal medium, pH and temperature were observe...

Rhopalostroma species were collected from Northern Thailand and subjected to morph-molecular analysis. One species possessed small, clavate stromata, with short and stout stipes, asci with an amyloid apical apparatus and ellipsoidal, dark ascospores with germ slits. Morphology and combined phylogenetic analysis of ITS, LSU, β-tubulin and RPB2 seque...

Macrolepiota dolichaula, an edible white spored gilled mushroom, is widely distributed in tropical and temperate countries. In this study, nutritional quality of M. dolichaula strain MFLUCC-13-0579 cultivated in compost was investigated. Proximate analysis of dry weight of M. dolichaula showed a composition of 25.53% protein, 44.37% carbohydrate, 1...

Anthostomella has long been regarded as a large, but polyphyletic genus in the family Xylariaceae, but species in this group generally lack phylogenetic data. In this study, 14 anthostomella-like taxa collected from Italy, were studied using both morphology and molecular data. Single ascospore isolates were obtained and the asexual morphs of five t...

Polyporus umbellatus is a medicinal mushroom belonging to the family Polyporaceae which forms characteristic underground sclerotia. These sclerotia have been used in Traditional Chinese Medicine for centuries and are used to treat edema and promote diuretic processes. Over the past few decades, researchers have found this taxon to contain many bioa...

Asanka Ranjana Bandara <ranjana_bandara@yahoo.com>; Kevin Hyde <kdhyde3@gmail.com> Polyporus umbellatus is a medicinal mushroom belonging to the family Polyporaceae which forms characteristic underground sclerotia. These sclerotia have been used in Traditional Chinese Medicine for centuries and are used to treat edema and promote diuretic processes...

Rhopalostroma lekae was collected on bark of wood in Chiang Rai Province, Northern Thailand and isolates from the sexual state produced a nodulosporium-like asexual state in culture. A combined multigene sequence analysis was used to infer the phylogenetic position of R. lekae and its affinities with other xylariaceous genera. Rhopalostroma is conf...

Tropical regions have the potential to be one of the richest sources of cultivatable fungal species. Even though there has been considerable research on the taxonomy and phylogeny of these mushrooms, there has been far less research on their domestication. The purpose of this paper is to review and detail the methods we have used for the discovery...

Plant disease associated fungi are of concern to plant pathologists, plant breeders, post harvest disease experts, quarantine officials and farmers in Thailand. Checklists with sound morphological identification are paramount to work by these specialists. In recent years molecular techniques have been applied to species identification and many spec...

Plant disease associated fungi are of concern to plant pathologists, plant breeders, post harvest disease experts, quarantine officials and farmers in Thailand. Checklists with sound morphological identification are paramount to work by these specialists. In recent years molecular techniques have been applied to species identification and many spec...