Skip to main content

Production of Cellulase and Xylanase Using an Amazon Fungus (Trametes sp.) | Chapter 03 | Advances and Trends in Biotechnology and Genetics Vol. 3

In order to use the residue from the beneficiation of Brazil nuts (Bertholletia excelsa HBK) as substrate in solid-sate fermentation (SSF), in this work, the production of cellulase and xylanase by the fungus Trametes sp. was investigated, using the residue as a carbon source. Employing a 24-1 fractional experimental design, the influence of substrate moisture, nutrient addition and inoculum quantity on enzymatic activities was verified. Moisture was detected to be statistically significant for the production of both enzymes, and increasing the moisture leads to the improvement of cellulase and xylanase activities. Nitrogen and phosphate were also important for enzymes production by the Amazon Trametes sp. The use of this Amazon strain to obtain cellulase and xylanase via SSF of Brazil nut residue appears to be feasible when maintaining substrate moisture at 80%, nitrogen source at 0.9% and low inoculum concentrations.

Author(s) Details

Rafael Lopes e Oliveira
Laboratory of Applied Chemistry and Technology, Chemical Engineering Course, School of Technology, State University of Amazonas, CEP 69050-020, Manaus-AM, Brazil.
Multidisciplinary Support Center, Federal University of Amazonas, CEP 69077-000, Manaus-AM, Brazil.

Salony Aquino Pereira
Laboratory of Applied Chemistry and Technology, Chemical Engineering Course, School of Technology, State University of Amazonas, CEP 69050-020, Manaus-AM, Brazil.

Sergio Duvoisin Junior
Laboratory of Applied Chemistry and Technology, Chemical Engineering Course, School of Technology, State University of Amazonas, CEP 69050-020, Manaus-AM, Brazil.

Leonor Alves de Oliveira da Silva
Laboratory of Fermentative Processes, Department of Antibiotics, Biological Sciences Center, Federal University of Pernambuco, CEP 50670-901, Recife-PE, Brazil.

Patrícia Melchionna Albuquerque
Laboratory of Applied Chemistry and Technology, Chemical Engineering Course, School of Technology, State University of Amazonas, CEP 69050-020, Manaus-AM, Brazil.
Graduate Program in Biotechnology and Natural Resources, School of Health Sciences, State University of Amazonas, CEP 69065-001, Manaus-AM, Brazil.

View Books: http://bp.bookpi.org/index.php/bpi/catalog/book/111
Labels:

Comments

Post a Comment

Popular posts from this blog

Greening Regional Airports: A Vision for Carbon Neutral Infrastructure | Chapter 12 | Contemporary Perspective on Science, Technology and Research Vol. 3

 This study provides an overview of the energy demand of a regional airport, divided into individual time horizons. The electrification of aircraft systems raises the question of whether airports will be among the largest electricity consumers in our infrastructure in the future. Sustainability and especially emission reductions are significant challenges for airports that are currently being addressed. The Clean Sky 2 project GENESIS addresses the environmental sustainability of hybrid-electric 50-passenger aircraft systems in a life cycle perspective to support the development of a technology roadmap for the transition to sustainable and competitive electric aircraft systems. This article originates from the GENESIS research and describes various options for ground power supply at a regional airport. Potential solutions for airport infrastructure with a short (2030), medium (2040), and long (2050) time horizon are proposed. In addition to the environmental and conservation benefi...
Post a Comment
Read more

Risk Factors for Postpartum Psychiatric Disorders. A Review of the Literature | Chapter 8 | New Visions in Medicine and Medical Science Vol. 4

  Objective: The aim of this study was to explore the risk factors for the development of postpartum psychiatric disorders through international literature. Materials and Methods: Throughout many articles in PubMed, Google scholar and PsycInfo, a great amount of recent data was gathered to identify the disorders that are most common as well as their risk factors. Results: After childbirth, most commonly women experience postpartum depression, anxiety disorders, post-traumatic stress disorder and postpartum psychosis. All the disorders have many similar risk-factors with the main one being preexisting psychiatric disorder and many similar symptoms too. Conclusions: Women after childbirth are at risk of experience many psychiatric disorders, such as postpartum distress, postpartum post traumatic stress disorder and even more rarely postpartum psychosis. It is important to provide comprehensive support to ensure the well-being of both the mother and the infant and this will b...
Post a Comment
Read more

Alkali Element Modification of Glucose Molecules as a Method to Dissolve Cancer Cells | Chapter 12 | New Visions in Medicine and Medical Science Vol. 4

  The present study highlights about alkali element modification of glucose molecules as a method to dissolve cancer cells. The central regulation of the mechanisms governing cell proliferation has little effect on cancer cells. Cancer cells are entirely independent of the central command and divide and proliferate on their own, making it challenging to activate their response mechanism. Precisely, this is the reason why they are at risk to the health of humans and/or any biological entities. Instead of trying to reconnect the central command of the growth control mechanism to cancer cells that are already out of the range, we present a method of using the cancer cell’s own irresponsive and uncontrolled growth mechanism to their disadvantage and destroy the cancer cells. We found that this is achievable in an atomic/molecular level study of the glucose molecule, which is the primary food source used for growth and energy generation by all cells in the body, including the cancer cel...
Post a Comment
Read more