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stir bar (Gerstel GmbH)

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Gerstel GmbH stir bar
Stir Bar, supplied by Gerstel GmbH, used in various techniques. Bioz Stars score: 98/100, based on 1098 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/stir+bar/TDU2/10__3390_slash_foods15101621-75-10-19
Average 98 stars, based on 1098 article reviews

stir bar - by Bioz Stars, 2026-10

98/100 stars

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Article Title: Upscaling fermentation of onion by Laetiporus sulphureus: Process optimization, aroma characterization, and application in plant-based meat alternatives.
Article Snippet: .. In detail, one stir bar (10 mm length; 0.5 mm polydimethylsiloxane thickness; Gerstel, Mülheim an der Ruhr, Germany) was directly immersed, while a second one was placed in the headspace of the 20 mL glass vial, containing 10 mL of the supernatant and 3.6 g of NaCl to enhance extraction efficiancy. ..

Article Title: Myxobacteria isolated from RAS: Ecology and significance as off-flavor producers
Article Snippet: .. In brief, for the extraction of VOCs and geosmin, a commercial stir bar (Twister; Gerstel GmbH & Co. KG, Mülheim an der Ruhr, Germany) coated with polydimethylsiloxane (PDMS; length 2 cm and thickness of 1 mm) was added to 20 mL of the liquid samples in a 50-mL glass vial and covered with a plastic lid. ..

Thermal Desorption:

Article Title: Preliminary Study of the Impact of Zwitterionic Ion-Exchange Resins on the Phenolic and Volatile Profiles of Fetească Neagră and Cabernet Sauvignon Wines
Article Snippet: .. Determination of Minor Aroma The thermal desorption tube containing the stir bar was introduced into a thermal desorption unit (Gerstel TDS 2) coupled to the GC-MS system. ..

Article Title: Almond-like Aroma Formation of Acid Whey by Ischnoderma benzoinum Fermentation: Potential Application in Novel Beverage Development.
Article Snippet: .. The stir bar was rinsed, dried, and placed in a thermal desorption unit (TDU, Gerstel) at 40 °C (1 min hold), coupled to a cooled injection system (CIS, Gerstel).The TDU was ramped to 150 °C at 120 °C/min and held again for 10 min in splitless mode. ..

Article Title: Upscaling fermentation of onion by Laetiporus sulphureus: Process optimization, aroma characterization, and application in plant-based meat alternatives.
Article Snippet: .. Afterwards, the stir bars were taken out, rinsed with deionized water, dried with a lint-free tissue, and transferred to glass thermal desorption tubes (Gerstel). .. To desorb the volatiles, the tubes were placed in a thermal desorption unit (TDU 2, Gerstel) with an initial temperature of 40 ◦C (held for 3 min), connected to a cooled injection system (CIS, Gerstel).

Article Title: Almond-like Aroma Formation of Acid Whey by Ischnoderma benzoinum Fermentation: Potential Application in Novel Beverage Development
Article Snippet: .. The stir bar was rinsed, dried, and placed in a thermal desorption unit (TDU, Gerstel) at 40 °C (1 min hold), coupled to a cooled injection system (CIS, Gerstel).The TDU was ramped to 150 °C at 120 °C/min and held again for 10 min in splitless mode. ..

Gas Chromatography-Mass Spectrometry:

Cooled Injection System:

Produced:

Article Title: Seasonal Fluctuations in Geosmin and Terpenes in Rainbow Trout (Oncorhynchus mykiss) in an Outdoor Commercial Recirculated Aquaculture System Facility
Article Snippet: .. A commercial stir-bar (TwisterTM, produced by Gerstel, Mülheim an der Ruhr, Germany, length of 10 mm and film thickness of 1.0 mm) coated with PDMS was added to 10 mL of water in a 10 mL vial. ..