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Related Concept Videos

Bioreactor Design and Operational System01:29

Bioreactor Design and Operational System

Bioreactors are engineered vessels designed to cultivate microorganisms under controlled conditions for industrial bioprocessing. They maintain sterility and allow precise regulation of pH, temperature, oxygen, and nutrient levels to optimize microbial growth and metabolite production. Bioreactors range from small laboratory units of 1 liter to industrial systems holding up to 500,000 liters, though only about 75% of their volume is actively used for fermentation. The remaining headspace...
Bioreactor Controls-II01:18

Bioreactor Controls-II

In aerobic fermentations, oxygen is vital for microbial growth and metabolite production. Since air comprises only about 20% oxygen and the gas is poorly soluble in water—just 9 ppm at 20°C—supplying sufficient oxygen becomes a critical challenge, especially in high-demand processes like yeast growth or citric acid production. Even a fully saturated broth may offer only a few seconds of oxygen availability.To address this, sterile or scrubbed air is introduced into the fermentor via a sparger...
Upstream Processing01:27

Upstream Processing

Upstream processing represents a critical phase in biomanufacturing, wherein biological systems such as microorganisms, mammalian cells, or insect cells are cultivated to produce therapeutic proteins, vaccines, enzymes, or other biologically derived products. This phase encompasses all steps from the selection and genetic manipulation of the production organism to the cultivation of cells in bioreactors under tightly controlled environmental conditions.Host Selection and Genetic OptimizationThe...
Bioreactor Controls-III01:22

Bioreactor Controls-III

Strain improvement is a foundational strategy in industrial microbiology aimed at maximizing microbial productivity, particularly because natural isolates typically yield commercially valuable products in very low concentrations. Although optimizing the culture medium and environmental conditions can improve yields, these adjustments are inherently limited by the organism’s genetic potential. As a result, the focus shifts toward genetic modifications to enhance biosynthetic capacity. The...
Microbial Fuel Cells01:23

Microbial Fuel Cells

Microbial fuel cells (MFCs) are bioelectrochemical devices that generate electricity by exploiting the metabolic processes of electrogenic bacteria. These systems provide a renewable energy source and serve as an innovative method for treating organic waste, such as wastewater.A typical MFC consists of two chambers: an anoxic (oxygen-free) compartment that houses the bacteria and an oxic (oxygen-rich) compartment that contains oxygen as the terminal electron acceptor. Many MFCs use proton...

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Related Experiment Video

Updated: May 31, 2026

Microfluidic Picoliter Bioreactor for Microbial Single-cell Analysis: Fabrication, System Setup, and Operation
12:04

Microfluidic Picoliter Bioreactor for Microbial Single-cell Analysis: Fabrication, System Setup, and Operation

Published on: December 6, 2013

Bamboo-Inspired bionic microfluidic Reactor: Construction and application for industrial Biocatalysis.

Quan Zhou1, Litao Wang1, Zijing Zhao2

  • 1State Key Laboratory of Efficient Production of Forest Resources, Beijing Forestry University, Beijing, PR China; The College of Forestry, Beijing Forestry University, 100083 Beijing, PR China; Beijing Key Laboratory of Efficient Synthesis of Plant Secondary Metabolites, PR China.

Bioresource Technology
|May 29, 2026
PubMed
Summary

A novel, low-cost, bamboo-inspired microfluidic biocatalytic reactor was developed for efficient phytochemical conversion. This green technology offers scalable industrial applications for continuous biotransformation processes.

Keywords:
Cellulose nanofibersDelignified bambooEnzyme immobilizationMicrofluidic reactorβ-glucosidase

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Last Updated: May 31, 2026

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Area of Science:

  • Biotechnology
  • Materials Science
  • Chemical Engineering

Background:

  • Microfluidic biocatalytic reactors are crucial but expensive for industrial use.
  • There is a need for cost-effective and environmentally friendly reactor designs.

Purpose of the Study:

  • To develop a scalable, low-cost, and green microfluidic biocatalytic reactor using delignified bamboo.
  • To establish an efficient enzyme immobilization system on the bamboo platform.

Main Methods:

  • Utilizing delignified bamboo as a biocompatible, porous platform for enzyme immobilization.
  • Optimizing delignification and Schiff base coupling for enzyme attachment.
  • Constructing a β-glucosidase-functionalized flow reactor for continuous biotransformation.

Main Results:

  • Achieved 90.20% immobilization yield and 95.35% retained enzyme activity.
  • Demonstrated a high protein loading capacity of 1.97 U·mg⁻¹.
  • Obtained 87.97% substrate biotransformation rate and a 2.4-fold increase in resveratrol concentration within 1 hour.

Conclusions:

  • The bamboo-based reactor is simple to prepare and scalable for industrial applications.
  • This bionic reactor offers a cost-effective and green solution for continuous phytochemical conversion.
  • The developed system shows significant potential for commercial biotransformation processes.