scholarly journals Optimisation of biomass, exopolysaccharide and intracellular polysaccharide production from the mycelium of an identified Ganoderma lucidum strain QRS 5120 using response surface methodology

2019 ◽  
Vol 5 (1) ◽  
pp. 19-38 ◽  
Author(s):  
Sugenendran Supramani ◽  
◽  
Rahayu Ahmad ◽  
Zul Ilham ◽  
Mohamad Suffian Mohamad Annuar ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Ganoderma Lucidum ◽  
Polysaccharide Production ◽  
Intracellular Polysaccharide

Application of Response Surface Methodology for Optimization of Liquid Fermentation Medium for Polysaccharide Production by Tricholoma Mongolicum Imai

2012 ◽  
Vol 550-553 ◽  
pp. 1831-1836
Author(s):  
Xiao Tong Wu ◽  
Hai Xia Chen ◽  
Tian Xiang Han ◽  
Jing Bai ◽  
Ji Zhao ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Carbon Source ◽  
Nitrogen Source ◽  
Response Surface ◽  
Extracellular Polysaccharide ◽  
Fermentation Medium ◽  
Single Factor ◽  
Polysaccharide Production ◽  
Intracellular Polysaccharide ◽  
Optimal Medium

The fermentation medium of Tricholoma Mongolicum Imai for producing intracellular polysaccharide and extracellular polysaccharide was optimized by response surface methodology. The effects of carbon source, nitrogen source and mineral salt on polysaccharide production were examined by single factor experiments, glucose and yeast was found to be the best carbon source and nitrogen source. Based on this, the optimization of the Box-Benhnken design combined with response surface analysis showed that the optimal medium contained 40g/L glucose; 20g/L yeast extract; 0.40% KH2PO4; 0.40% MgSO4.The intracellular polysaccharide production and extracellular polysaccharide in medium reached 2.0512g/L and 2.394 g/L , respectively.

scholarly journals Effect of medium pH and cultivation period on mycelial biomass, polysaccharide, and ligninolytic enzyme production by Ganoderma lucidum from Montenegro

2006 ◽  
Vol 58 (3) ◽  
pp. 179-182 ◽  
Author(s):  
Jelena Vukojevic ◽  
Mirjana Stajic ◽  
Sonja Duletic-Lausevic ◽  
Jasmina Simonic
Keyword(s):  
Ganoderma Lucidum ◽  
Enzyme Production ◽  
Ligninolytic Enzymes ◽  
Extracellular Polysaccharide ◽  
Ligninolytic Enzyme ◽  
Extracellular Polysaccharides ◽  
Medium Ph ◽  
Polysaccharide Production ◽  
Intracellular Polysaccharide ◽  
Maximal Production

The effect of initial medium pH on biomass, extracellular and intracellular polysaccharide, and ligninolytic enzyme production by Ganoderma lucidum was investigated at different pH values after 7 and 14 days of cultivation. Maximal production of biomass was recorded at pH 4.5 and 5.0; maximal production of extracellular polysaccharides at pH 7.0 and 3.0; and maximal production of intracellular polysaccharides at pH 7.0 and 5.5. Ligninolytic enzymes were not produced at any pH of the medium. Maximal biomass production was obtained on the 11th day of cultivation; maximal extracellular polysaccharide production on the 7th day; and maximal intracellular polysaccharide production on the 6th and 10th day of cultivation. .

scholarly journals Utilization of Response Surface Methodology in Optimization of Polysaccharides Extraction from Vietnamese Red Ganoderma lucidum by Ultrasound-Assisted Enzymatic Method and Examination of Bioactivities of the Extract

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Dat Tran Do ◽  
Dang Hoang Lam ◽  
Tai Nguyen ◽  
Tran Thi Phuong Mai ◽  
Le Thao My Phan ◽  
...  
Keyword(s):  
Response Surface Methodology ◽  
Response Surface ◽  
Ganoderma Lucidum ◽  
Extraction Method ◽  
Gel Permeation Chromatography ◽  
Extraction Time ◽  
Ultrasonic Power ◽  
Extraction Temperature ◽  
Anticancer Activities ◽  
Ultrasound Assisted

Red Ganoderma lucidum (G. lucidum) is a popular medicinal herb commonly used in Vietnamese traditional remedies due to its potential value for health. In this study, polysaccharides were extracted from G. lucidum using ultrasound-assisted enzymatic extraction method. The response surface methodology and Box–Behnken design were employed to investigate the effects of pH, extraction temperature, extraction time, and ultrasonic power on the content of polysaccharides. Based on ultraviolet-visible spectroscopy analysis, the highest content of polysaccharides in the extract was 32.08 mg/g under optimum experimental parameters including enzyme concentration of 3%, pH of 5.5, extraction temperature of 45°C, extraction time of 30 min, and ultrasonic power of 480 W. The Fourier-transform infrared spectroscopy was also used to identify the functional groups in the extracts. The molecular weights of polysaccharides were determined by gel permeation chromatography. The obtained extract was then evaluated for anticancer activities by using (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay, showing the anticancer activities with the half-maximal inhibitory concentration value of more than 512 μg/mL. This result suggested that UAEE could be considered as an appropriate and effective extraction method for bioactive crude polysaccharides from G. lucidum.

Sign in / Sign up

Export Citation Format

Share Document