Menu
Algae Research Supply
0
  • How to Grow
    • Choose your culture
    • Supplies
    • Start your project
    • Harvesting
    • Troubleshooting
  • Organisms
  • Lesson
  • Resources
    • Encyclopedia Aquatica
    • Interviews
    • Videos
    • Glossary
    • Phenomenon
    • FAQ
  • Shop
  • About Us
  • Sign in
  • Your Cart is Empty
Algae Research Supply
  • How to Grow
    • Choose your culture
    • Supplies
    • Start your project
    • Harvesting
    • Troubleshooting
  • Organisms
  • Lesson
  • Resources
    • Encyclopedia Aquatica
    • Interviews
    • Videos
    • Glossary
    • Phenomenon
    • FAQ
  • Shop
  • About Us
  • 0 0

Batch, Semi-continuous, and Continuous Cultures

May 27, 2022

There are three general methods to grow algae that are across a spectrum.  Batch culture, semi continuous batch culture, and continuous culture.   
In the batch culture your have a finite volume of media in which the cells grow. You do not add any new media.  Over time the biomass looks like this plot.   The culture experiences lag-phase, exponential growth, stationary phase, then decline. 
In the semi-continuous batch culture.  The culture is harvested every day to week and new media is added to the container.  For the greatest amount of biomass produced, the harvesting is done at the highest biomass possible before the culture enters the stationary phase of growth.  The culture experiences the lag phase and exponential phases.  If done correctly, it never entered stationary phase or decline.  Over time this type of culture method could experience pathogens or weed algae growing in the media, so monitoring of the culture is important.  
A continuous culture is a most efficient way to create biomass.  This culture method is also called a chemostat, or a turbidostat (when the density is held constant).   In this method, a continuous supply of media is added to the culture.  With the culture volume held stationary, every new mL of media yields a new ml of product.  You could view this a semi-continuous batch culture, where the harvest phase is every second. 
  • Share:


Also in News

Oldest Brainy Briny Culture (2019)
Oldest Brainy Briny Culture (2019)

February 16, 2023

The oldest Brainy Briny culture!

Read More

Methods from France, Cultures in New Mexico: An Interview with Nic Petrovic
Methods from France, Cultures in New Mexico: An Interview with Nic Petrovic

July 26, 2021

Read More

Blast off! Journey to Mars with Algae!
Blast off! Journey to Mars with Algae!

May 30, 2021

Read More

Follow
  • Products
  • FAQ
  • Home
  • Contact
  • About us
  • Search
  • Blog
  • Algae Culture Media
  • Product Support
  • Request Quotation

© 2023 Algae Research Supply.
Powered by Shopify

Amazon American Express Apple Pay Diners Club Discover Meta Pay Google Pay Mastercard PayPal Shop Pay Venmo Visa