Benchtop Glass Fermenter - Laboratory Bioreactor - 1 to 10 L - pH, DO and Feed Control

The Master Science Benchtop Glass Fermenter is a compact bioreactor for precise microbial fermentation in research and industrial laboratories. It is used for screening media formulations, optimising fermentation parameters and verifying processes and strains before scale-up.

Six vessel sizes are available, from 1 to 10 litres, in heat- and pressure-resistant borosilicate glass with a 316L stainless steel top plate. Temperature, pH, dissolved oxygen, feeding and foam are all monitored and controlled from a PLC with a colour touch screen.

Technical Specifications

Specifications of the Master Science Benchtop Glass Fermenter range (1 / 2 / 3 / 5 / 7 / 10 L):

• Brand: Master Science
• Model Number: MSGF-J1SWISS, MSGF-J2SWISS, MSGF-J3SWISS, MSGF-J5SWISS, MSGF-J7SWISS, MSGF-J10SWISS
• SKU: MSGF-J1SWISS, MSGF-J2SWISS, MSGF-J3SWISS, MSGF-J5SWISS, MSGF-J7SWISS, MSGF-J10SWISS
• Brand: Master Science
• Model Numbers: MSGF-J1SWISS, MSGF-J2SWISS, MSGF-J3SWISS, MSGF-J5SWISS, MSGF-J7SWISS, MSGF-J10SWISS
• SKU: MSGF-J1SWISS, MSGF-J2SWISS, MSGF-J3SWISS, MSGF-J5SWISS, MSGF-J7SWISS, MSGF-J10SWISS
• Nominal Volume: 1 / 2 / 3 / 5 / 7 / 10 L
• Working Volume: 65 to 80 % (70 % optimal)
• Vessel: High-silicon borosilicate glass, single or double layer; 316L stainless steel top plate
• Vessel Inner Size (Ø × H): 100 × 175 / 160 × 200 / 160 × 250 / 160 × 300 / 160 × 350 / 190 × 375 mm
• Agitation: Top-entry servo motor, aseptic mechanical seal or magnetic drive, 0 to 1000 rpm
• Impellers: Three-tier: flat, pitched and toothed anti-foam blades, adjustable height
• Aeration: Ring sparger, glass rotameter, pressure gauge, 0.2 µm sterile filter (external compressed air required)
• Temperature Control: PT-100 probe, electric heating and cooling water, automatic or manual
• pH Control: Steam-sterilisable pH electrode, 1 or 2 peristaltic pumps for acid/base
• Dissolved Oxygen: 0 to 100 % or 0 to 200 %, steam-sterilisable DO electrode, linkable to stirring and feeding
• Feeding: 1 peristaltic pump, time-proportional, 10-segment program
• Anti-foam: Conductive foam probe with alarm, anti-foam pump (switchable to feed)
• Control: PLC with colour touch screen
• Sterilisation: In-place or autoclave
• Control Cabinet: 400 × 300 × 600 mm, 25 kg
• Vessel Weight: 5 / 7 / 13 / 17 / 22 / 24 kg
• Gross Weight: 48 / 50 / 58 / 60 / 65 / 70 kg

Key Benefits

• Full process control: the Master Science Benchtop Glass Fermenter regulates temperature, pH, DO, feed and foam.
• See the culture: borosilicate glass vessel.
• Ready to run: plug in power and cooling water.
• Flexible feeding: 10-segment programs linked to DO.
• Room to expand: mass flow, off-gas and redox options.

Seed cultures are often prepared in a Master Science laboratory incubator or shaker.

Product Features

Vessel and Agitation

• 1 to 10 L glass vessels
• Servo top drive, 0 to 1000 rpm
• Three-tier adjustable impellers

Measurement and Control

• Online pH, DO and temperature
• PLC with touch screen
• Acid, base, feed and anti-foam pumps

Aeration

• Ring sparger
• Rotameter and pressure gauge
• 0.2 µm sterile air filter

Applications

The Master Science Benchtop Glass Fermenter is used for:

• Microbial fermentation research
• Medium formulation screening
• Fermentation process optimisation
• Strain and process verification
• University and industrial R&D labs

Optional Accessories

• Multi-channel feeding
• Feed weighing
• Oxygen enrichment bypass
• Online redox (ORP) measurement
• Automatic air flow (mass flow) control
• Off-gas CH4, O2 and CO2 analysis

Common Laboratory Problems and How This Fermenter Helps

How the Master Science Benchtop Glass Fermenter improves fermentation work:

• Shake flasks give poor control: online pH, DO and temperature.
• Foam overflow: foam probe with automatic anti-foam dosing.
• Manual feeding errors: programmed peristaltic feeding.
• Contaminated air supply: 0.2 µm sterile filter.