scholarly journals Cellulase enzyme production enhancement in Trichoderma viride by Gamma induced mutation

2018 ◽  
Vol 4 (4) ◽  
pp. 329-336
Author(s):  
Khadijeh Bagheri ◽  
Samira Shahbazi ◽  
Hamed Askari ◽  
Shide Mojerlou ◽  
Farangis Amirlou ◽  
...  
Author(s):  
Francis John V ◽  
Dr. Soloman P A

Fruit wastes were incubated with the mixture of cellulolytic fungi Penicillium citrinum, Aspergillus oryzae, and Trichoderma viride to hydrolyze the cellulosic components and to increase the degree of degradation. . The batch experiments are statistically designed and performed using Box-Benhken method of Response Surface Methodology to investigate the influence of major parameters viz., incubation time, temperature, pH, moisture content and substrate concentration on cellulase enzyme production. Maximum cellulase production of 2.03 Units/ml (U/ml) was detected by the RSM method in a mixed culture containing fungi at a ratio of 1: 1: 1 under optimal conditions at an incubation time of 5.27 days, a temperature of 34.09 °C, pH 4.85, moisture content of 63.83% and a substrate concentration of 5.03%.


2009 ◽  
Vol 12 (13) ◽  
pp. 50-56
Author(s):  
Thuan Thi Thanh Tran ◽  
Luong Duc Nguyen

Coffee pulp, which is waste material from coffee production line, has many poor natural degradeble property. Cellulase aillus nigernd pectinase, which were bio synthesized by the fugus races of Trichoderma viride and Asperg, can improve the disintergration process of coffee pulp. In this study, the conditions affecting the production of these enzymes were studied.. The optimum conditions for producing Pectinase enzyme of Aspergillus niger include: 2 days, 62% of humidity, 8% of culture. The optimum conditions for the production of Cellulase enzyme of Trichoderma viride are lasting for 4 days, 58% of humidity, 8% of culture. By carrying out real experiments we found that coffee pulp was disintergrated in the duration of 14 days, 60% of humidity, 8% of culture.


2021 ◽  
Vol 7 (10) ◽  
pp. 868
Author(s):  
Laila Naher ◽  
Siti Noor Fatin ◽  
Md Abdul Halim Sheikh ◽  
Lateef Adebola Azeez ◽  
Shaiquzzaman Siddiquee ◽  
...  

Fungi are a diverse group of microorganisms that play many roles in human livelihoods. However, the isolation of potential fungal species is the key factor to their utilization in different sectors, including the enzyme industry. Hence, in this study, we used two different fungal repositories—soil and weed leaves—to isolate filamentous fungi and evaluate their potential to produce the cellulase enzyme. The fungal strains were isolated using dichloran rose bengal agar (DRBA) and potato dextrose agar (PDA). For cellulase enzyme production, a rice straw submerged fermentation process was used. The enzyme production was carried out at the different incubation times of 3, 5, and 7 days of culture in submerged conditions with rice straw. Fungal identification studies by morphological and molecular methods showed that the soil colonies matched with Trichoderma reesei, and the weed leaf colonies matched with Aspergillus awamori. These species were coded as T. reesei UMK04 and A. awamori UMK02, respectively. This is the first report of A. awamori UMK02 isolation in Malaysian agriculture. The results of cellulase production using the two fungi incorporated with rice straw submerged fermentation showed that T. reesei produced a higher amount of cellulase at Day 5 (27.04 U/mg of dry weight) as compared with A. awamori (15.19 U/mg of dry weight), and the concentration was significantly different (p < 0.05). Our results imply that T. reesei can be utilized for cellulase production using rice straw.


2017 ◽  
Vol 2 (2) ◽  
pp. 155 ◽  
Author(s):  
Hassan Sher ◽  
Muhammad Faheem ◽  
Abdul Ghani ◽  
Rashid Mehmood ◽  
Hamza Rehman ◽  
...  

Cellulases are the hydrolytic group of enzymes, responsible for release of sugars in the bioconversion of the cellulosic biomass into a variety of value added industrial products. Fungal isolated cellulases are well studied and playing a significant role in various industrial processes. Enzymatic depolymerisation of cellulosic material has been done by the various fungal isolated enzymes. In the present study, the cultivation conditions for cellulase production from Aspergillus species were optimized. Optimization of scarification conditions such as time course, inoculum size, carbon source and concentration, nitrogen source, various pH levels were performed for the production of extracellular carboxymethyl cellulase and endoglucanase enzyme. The result exhibited, 15 % inoculums size, corncobs 2 % concentration, Urea and medium pH 7 at 30oC supported high yield of carboxymethyl cellulase (38.80 U/ml/min) and exoglucanase enzyme (10.94 U/ml/min) through a submerged fermentation (SmF). In future biotechnological applications in cellulase enzyme production attain a vital role to obtain high degradable yield.


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