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Zhongli Pan - One of the best experts on this subject based on the ideXlab platform.
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alternaria sp mg1 a resveratrol producing Fungus Isolation identification and optimal cultivation conditions for resveratrol production
Applied Microbiology and Biotechnology, 2012Co-Authors: Junling Shi, Qin Zeng, Yanlin Liu, Zhongli PanAbstract:Due to its potential in preventing or slowing the occurrence of many diseases, resveratrol (3,5,4′-trihydroxystilbene) has attracted great research interest. The objective of this study was to identify microorganisms from selected plants that produce resveratrol and to optimize the conditions for resveratrol production. Endophytes from Merlot wine grapes (Vitis vinifera L. cv. Merlot), wild Vitis (Vitis quinquangularis Rehd.), and Japanese knotweed (Polygonum cuspidatum Siebold & Zucc.) were isolated, and their abilities to produce resveratrol were evaluated. A total of 65 isolates were obtained and 21 produced resveratrol (6–123 μg/L) in liquid culture. The resveratrol-producing isolates belonged to seven genera, Botryosphaeria, Penicillium, Cephalosporium, Aspergillus, Geotrichum, Mucor, and Alternaria. The resveratrol-producing capability decreased or was completely lost in most isolates after three rounds of subculture. It was found that only the strain Alternaria sp. MG1 (isolated from cob of Merlot using GA1 medium) had stable and high resveratrol-producing capability in all subcultures. During liquid cultivation of Alternaria sp. MG1 in potato dextrose medium, the synthesis of resveratrol began on the first day, increased to peak levels on day 7, and then decreased sharply thereafter. Cell growth increased during cultivation and reached a stable and high level of biomass after 5 days. The best fermentation conditions for resveratrol production in liquid cultures of Alternaria sp. MG1 were an inoculum size of 6 %, a medium volume of 125 mL in a 250-mL flask, a rotation speed of 101 rpm, and a temperature of 27 °C.
Junling Shi - One of the best experts on this subject based on the ideXlab platform.
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alternaria sp mg1 a resveratrol producing Fungus Isolation identification and optimal cultivation conditions for resveratrol production
Applied Microbiology and Biotechnology, 2012Co-Authors: Junling Shi, Qin Zeng, Yanlin Liu, Zhongli PanAbstract:Due to its potential in preventing or slowing the occurrence of many diseases, resveratrol (3,5,4′-trihydroxystilbene) has attracted great research interest. The objective of this study was to identify microorganisms from selected plants that produce resveratrol and to optimize the conditions for resveratrol production. Endophytes from Merlot wine grapes (Vitis vinifera L. cv. Merlot), wild Vitis (Vitis quinquangularis Rehd.), and Japanese knotweed (Polygonum cuspidatum Siebold & Zucc.) were isolated, and their abilities to produce resveratrol were evaluated. A total of 65 isolates were obtained and 21 produced resveratrol (6–123 μg/L) in liquid culture. The resveratrol-producing isolates belonged to seven genera, Botryosphaeria, Penicillium, Cephalosporium, Aspergillus, Geotrichum, Mucor, and Alternaria. The resveratrol-producing capability decreased or was completely lost in most isolates after three rounds of subculture. It was found that only the strain Alternaria sp. MG1 (isolated from cob of Merlot using GA1 medium) had stable and high resveratrol-producing capability in all subcultures. During liquid cultivation of Alternaria sp. MG1 in potato dextrose medium, the synthesis of resveratrol began on the first day, increased to peak levels on day 7, and then decreased sharply thereafter. Cell growth increased during cultivation and reached a stable and high level of biomass after 5 days. The best fermentation conditions for resveratrol production in liquid cultures of Alternaria sp. MG1 were an inoculum size of 6 %, a medium volume of 125 mL in a 250-mL flask, a rotation speed of 101 rpm, and a temperature of 27 °C.
Yanlin Liu - One of the best experts on this subject based on the ideXlab platform.
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alternaria sp mg1 a resveratrol producing Fungus Isolation identification and optimal cultivation conditions for resveratrol production
Applied Microbiology and Biotechnology, 2012Co-Authors: Junling Shi, Qin Zeng, Yanlin Liu, Zhongli PanAbstract:Due to its potential in preventing or slowing the occurrence of many diseases, resveratrol (3,5,4′-trihydroxystilbene) has attracted great research interest. The objective of this study was to identify microorganisms from selected plants that produce resveratrol and to optimize the conditions for resveratrol production. Endophytes from Merlot wine grapes (Vitis vinifera L. cv. Merlot), wild Vitis (Vitis quinquangularis Rehd.), and Japanese knotweed (Polygonum cuspidatum Siebold & Zucc.) were isolated, and their abilities to produce resveratrol were evaluated. A total of 65 isolates were obtained and 21 produced resveratrol (6–123 μg/L) in liquid culture. The resveratrol-producing isolates belonged to seven genera, Botryosphaeria, Penicillium, Cephalosporium, Aspergillus, Geotrichum, Mucor, and Alternaria. The resveratrol-producing capability decreased or was completely lost in most isolates after three rounds of subculture. It was found that only the strain Alternaria sp. MG1 (isolated from cob of Merlot using GA1 medium) had stable and high resveratrol-producing capability in all subcultures. During liquid cultivation of Alternaria sp. MG1 in potato dextrose medium, the synthesis of resveratrol began on the first day, increased to peak levels on day 7, and then decreased sharply thereafter. Cell growth increased during cultivation and reached a stable and high level of biomass after 5 days. The best fermentation conditions for resveratrol production in liquid cultures of Alternaria sp. MG1 were an inoculum size of 6 %, a medium volume of 125 mL in a 250-mL flask, a rotation speed of 101 rpm, and a temperature of 27 °C.
Qin Zeng - One of the best experts on this subject based on the ideXlab platform.
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alternaria sp mg1 a resveratrol producing Fungus Isolation identification and optimal cultivation conditions for resveratrol production
Applied Microbiology and Biotechnology, 2012Co-Authors: Junling Shi, Qin Zeng, Yanlin Liu, Zhongli PanAbstract:Due to its potential in preventing or slowing the occurrence of many diseases, resveratrol (3,5,4′-trihydroxystilbene) has attracted great research interest. The objective of this study was to identify microorganisms from selected plants that produce resveratrol and to optimize the conditions for resveratrol production. Endophytes from Merlot wine grapes (Vitis vinifera L. cv. Merlot), wild Vitis (Vitis quinquangularis Rehd.), and Japanese knotweed (Polygonum cuspidatum Siebold & Zucc.) were isolated, and their abilities to produce resveratrol were evaluated. A total of 65 isolates were obtained and 21 produced resveratrol (6–123 μg/L) in liquid culture. The resveratrol-producing isolates belonged to seven genera, Botryosphaeria, Penicillium, Cephalosporium, Aspergillus, Geotrichum, Mucor, and Alternaria. The resveratrol-producing capability decreased or was completely lost in most isolates after three rounds of subculture. It was found that only the strain Alternaria sp. MG1 (isolated from cob of Merlot using GA1 medium) had stable and high resveratrol-producing capability in all subcultures. During liquid cultivation of Alternaria sp. MG1 in potato dextrose medium, the synthesis of resveratrol began on the first day, increased to peak levels on day 7, and then decreased sharply thereafter. Cell growth increased during cultivation and reached a stable and high level of biomass after 5 days. The best fermentation conditions for resveratrol production in liquid cultures of Alternaria sp. MG1 were an inoculum size of 6 %, a medium volume of 125 mL in a 250-mL flask, a rotation speed of 101 rpm, and a temperature of 27 °C.
Farrah Kheradmand - One of the best experts on this subject based on the ideXlab platform.
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airway surface mycosis in chronic th2 associated airway disease
The Journal of Allergy and Clinical Immunology, 2014Co-Authors: Paul Porter, Dae Jun Lim, Zahida Khan Maskatia, Garbo Mak, Chulin Tsai, Martin J Citardi, Samer Fakhri, Joanne L Shaw, Annette Fothergil, Farrah KheradmandAbstract:Background Environmental fungi have been linked to T H 2 cell–related airway inflammation and the T H 2-associated chronic airway diseases asthma, chronic rhinosinusitis (CRS) with nasal polyps (CRSwNP), and allergic fungal rhinosinusitis (AFRS), but whether these organisms participate directly or indirectly in disease pathology remains unknown. Objective To determine the frequency of Fungus Isolation and Fungus-specific immunity in patients with T H 2-associated and non–T H 2-associated airway disease. Methods Sinus lavage fluid and blood were collected from sinus surgery patients (n = 118) including patients with CRSwNP, patients with CRS without nasal polyps, patients with AFRS, and non-CRS/nonasthmatic control patients. Asthma status was determined from medical history. Sinus lavage fluids were cultured and directly examined for evidence of viable fungi. PBMCs were restimulated with fungal antigens in an enzyme-linked immunocell spot assay to determine total memory Fungus-specific IL-4–secreting cells. These data were compared with Fungus-specific IgE levels measured from plasma by ELISA. Results Filamentous fungi were significantly more commonly cultured in patients with T H 2-associated airway disease (asthma, CRSwNP, or AFRS: n = 68) than in control patients with non–T H 2-associated disease (n = 31): 74% vs 16%, respectively ( P H 2-associated diseases (sensitivity 73% and specificity 100% vs 50% and 77%, respectively). Conclusions The frequent Isolation of fungi growing directly within the airways accompanied by specific immunity to these organisms only in patients with T H 2-associated chronic airway diseases suggests that fungi participate directly in the pathogenesis of these conditions. Efforts to eradicate airway fungi from the airways should be considered in selected patients.
