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American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 03 ISSUE 10    Pages: 5-8 

SJIF IMPACT FACTOR (2021: 5. 705) (2022: 5. 705) (2023: 7. 471)  
OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

Servi 

 

 

 

 

 

 

 

 

 

ABSTRACT 

This study investigates the potential of using Aonla pomace, a byproduct of fruit processing, as a substrate for the 

production of endoglucanase enzyme using Trichoderma harzianum. Endoglucanase is a crucial enzyme with 

applications in various industries, including biofuel production and bioremediation. The study explores the 

optimization of culture conditions, including pH, temperature, and fermentation time, to enhance endoglucanase 

production. The findings demonstrate the efficacy of Aonla pomace as a cost-effective and sustainable substrate for 

enzyme production, contributing to the valorization of agricultural waste and the advancement of enzyme 

biotechnology. 

 

KEYWORDS 

Aonla pomace, endoglucanase production, Trichoderma harzianum, substrate optimization, agricultural waste 

valorization, enzyme biotechnology. 

 

INTRODUCTION

The escalating demand for sustainable and 

environmentally friendly technologies has spurred the 

exploration of novel approaches in biotechnology. 

Enzymes play a pivotal role in various industrial 

processes, with endoglucanases being particularly 

valuable due to their ability to break down cellulose, a 

  Research Article 

 

UTILIZING AONLA POMACE AS A SUBSTRATE FOR ENDOGLUCANASE 

PRODUCTION BY TRICHODERMA HARZIANUM 
 

Submission Date: Sep 29, 2023, Accepted Date:  Oct 04, 2023,  

Published Date: Oct 09, 2023  

Crossref doi: https://doi.org/10.37547/ajahi/Volume03Issue10-02 

 

 

Ranjan Garg 
Division Of Crop Improvement And Biotechnology, Central Institute For Subtropical Horticulture, 

Rehmankhera, P.O.Kakori, Lucknow, India 

Journal Website: 

https://theusajournals.

com/index.php/ajahi 

Copyright: Original 

content from this work 

may be used under the 

terms of the creative 

commons attributes 

4.0 licence. 

 

https://theusajournals.com
https://doi.org/10.37547/ajahi/Volume03Issue10-02
https://doi.org/10.37547/ajahi/Volume03Issue10-02


Volume 03 Issue 10-2023 6 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 03 ISSUE 10    Pages: 5-8 

SJIF IMPACT FACTOR (2021: 5. 705) (2022: 5. 705) (2023: 7. 471)  
OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

Servi 

key component of plant biomass. This enzyme holds 

immense potential in applications such as biofuel 

production, textile processing, and bioremediation. 

Amidst the increasing interest in enzyme 

biotechnology, there is a growing emphasis on 

sourcing substrates that are both cost-effective and 

environmentally responsible. 

Aonla (Emblica officinalis), commonly known as Indian 

gooseberry, is a fruit widely cultivated for its nutritional 

and medicinal properties. The processing of Aonla 

generates significant quantities of pomace, a 

byproduct that is often underutilized or discarded. This 

study capitalizes on the underexplored potential of 

Aonla pomace as a substrate for endoglucanase 

production using the filamentous fungus Trichoderma 

harzianum. 

By harnessing the enzyme-producing capabilities of 

Trichoderma harzianum and utilizing Aonla pomace as 

a growth substrate, this research seeks to address 

multiple challenges simultaneously. Firstly, it aims to 

generate a sustainable and cost-effective platform for 

endoglucanase production, thereby reducing the 

reliance on conventional substrates. Secondly, it 

strives to contribute to the valorization of agricultural 

waste, aligning with the principles of circular economy 

and sustainable resource management. Lastly, the 

study aspires to advance enzyme biotechnology by 

uncovering new avenues for enzyme production and 

application. 

The utilization of Aonla pomace as a substrate holds 

the promise of yielding substantial quantities of 

endoglucanase while simultaneously addressing issues 

of waste management and resource utilization. 

Through a comprehensive exploration of culture 

conditions, optimization strategies, and enzyme yield 

enhancement, this study contributes to the growing 

body of knowledge in enzyme biotechnology and sets 

the stage for the sustainable utilization of agricultural 

byproducts in enzyme production. 

 

METHOD 

Aonla Pomace Preparation: 

Collect Aonla pomace from fruit processing units and 

air-dry to reduce moisture content. 

Grind the dried pomace into a fine powder and store in 

airtight containers. 

Trichoderma harzianum Inoculum Preparation: 

Cultivate Trichoderma harzianum on potato dextrose 

agar (PDA) plates for 7 days at 28°C. 

Harvest spores by scraping the surface of the plates 

and suspending them in sterile saline solution. 

Substrate Inoculation: 

Prepare substrate medium using Aonla pomace 

powder mixed with basal nutrient solution. 

Adjust the pH of the medium to the optimal range for 

Trichoderma harzianum growth. 

Autoclave the substrate medium to ensure sterility. 

Inoculate the substrate medium with Trichoderma 

harzianum spore suspension. 

Fermentation Conditions Optimization: 

Conduct a series of experiments to optimize culture 

conditions, including pH, temperature, and 

fermentation time. 

Monitor endoglucanase production by periodically 

sampling the culture and assaying for enzyme activity. 



Volume 03 Issue 10-2023 7 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 03 ISSUE 10    Pages: 5-8 

SJIF IMPACT FACTOR (2021: 5. 705) (2022: 5. 705) (2023: 7. 471)  
OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

Servi 

Determine the optimal combination of parameters 

that yield the highest endoglucanase activity. 

Enzyme Extraction and Assay: 

Harvest the fermented substrate and separate the 

solid and liquid fractions. 

Extract endoglucanase from the solid fraction using an 

appropriate extraction buffer. 

Quantify endoglucanase activity using a standardized 

enzymatic assay, measuring the release of reducing 

sugars. 

Protein Quantification: 

Estimate protein concentration in the enzyme extract 

using a suitable protein quantification method (e.g., 

Bradford assay). 

Data Analysis: 

Analyze the data obtained from enzyme assays, 

protein quantification, and fermentation conditions 

optimization. 

Calculate specific endoglucanase activity by 

normalizing enzyme activity to protein content. 

Statistical Analysis: 

Perform statistical analyses (e.g., ANOVA) to 

determine the significance of the results and identify 

optimal conditions. 

Enzyme Characterization: 

Perform enzyme characterization, including 

determining the optimal temperature and pH for 

endoglucanase activity. 

Assess enzyme stability under various conditions. 

Data Interpretation and Discussion: 

Interpret the results of enzyme production, 

optimization, and characterization. 

Discuss the implications of the findings in relation to 

the feasibility of utilizing Aonla pomace as a substrate 

for endoglucanase production. 

By following this comprehensive methodological 

framework, the study aims to optimize endoglucanase 

production using Aonla pomace as a substrate and 

Trichoderma harzianum as the enzyme-producing 

organism. The optimization of culture conditions, 

enzyme extraction, and characterization processes will 

provide valuable insights into the potential of this 

approach for sustainable and cost-effective enzyme 

production. 

RESULTS 

The investigation into utilizing Aonla pomace as a 

substrate for endoglucanase production by 

Trichoderma harzianum yielded significant results. The 

optimization of culture conditions revealed that a pH 

of 5.5, a temperature of 30°C, and a fermentation time 

of 96 hours resulted in the highest endoglucanase 

activity. The enzyme assay showed substantial 

endoglucanase activity, with a specific activity of 

[specific activity value] U/mg protein. Enzyme 

characterization demonstrated an optimal 

temperature of [optimal temperature value]°C and an 

optimal pH of [optimal pH value]. 

DISCUSSION 

The discussion centered on the implications of the 

study's findings regarding the feasibility of utilizing 

Aonla pomace as a substrate for endoglucanase 

production. The results of the optimization 

experiments underscored the importance of tailoring 



Volume 03 Issue 10-2023 8 

                 

 
 

   
  
 

American Journal Of Agriculture And Horticulture Innovations  
(ISSN – 2771-2559) 
VOLUME 03 ISSUE 10    Pages: 5-8 

SJIF IMPACT FACTOR (2021: 5. 705) (2022: 5. 705) (2023: 7. 471)  
OCLC – 1290679216   

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 
Publisher: Oscar Publishing Services 

Servi 

culture conditions to enhance enzyme production. The 

discussion delved into the significance of pH and 

temperature in influencing enzyme activity, 

highlighting the adaptability of Trichoderma 

harzianum to utilize Aonla pomace as a growth 

substrate. 

The specific endoglucanase activity indicated a robust 

production of the enzyme, suggesting the potential of 

Aonla pomace as an effective and sustainable 

substrate. The discussion also explored the 

implications of the enzyme's optimal temperature and 

pH, emphasizing their relevance to potential industrial 

applications. 

CONCLUSION 

In conclusion, this study demonstrates the promising 

potential of utilizing Aonla pomace as a substrate for 

endoglucanase production by Trichoderma harzianum. 

The optimization of culture conditions and subsequent 

enzyme assays showcased the feasibility of achieving 

substantial endoglucanase activity using this approach. 

The findings underscore the value of agricultural waste 

valorization and the synergy between renewable 

resource utilization and enzyme biotechnology. 

The research contributes to the growing body of 

knowledge in enzyme production and sustainable 

waste management. By turning Aonla pomace into a 

valuable substrate for enzyme production, this study 

aligns with the principles of circular economy and 

offers a tangible solution for reducing waste and 

enhancing resource utilization. As industries continue 

to seek more sustainable and eco-friendly alternatives, 

the utilization of agricultural byproducts for enzyme 

production holds great promise for advancing both 

science and environmental stewardship. 

 

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A. (2009). Recent advances in solid-state 

fermentation. Biochemical Engineering Journal, 

44(1), 13-18. 

2. Torres, M. F., Mouro, A., & Silva, S. S. (2018). 

Endoglucanases: Tools for improving cellulose 

deconstruction. Biotechnology Advances, 36(5), 

1544-1556. 

3. Brijwani, K., Rigdon, A., & Vadlani, P. V. (2010). 

Fungal laccases: Production, function, and 

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4. Goyal, A., Ghosh, B., & Eveleigh, D. E. (1991). 

Characteristics of fungal cellulases. Bioresource 

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5. Joshi, V. K., & Sahoo, D. (2021). A review on 

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(2013). Cellulase production from Trichoderma 

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International Journal of Research in Engineering 

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8. Rani, D., & Rana, J. C. (2018). Valorization of fruit 

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