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Sulfuric Acid Solubilization of Plant Biomass
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Sulfuric Acid Solubilization of Plant Biomass

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Introduction Protocol References Credit lines
Category
Plant cell wall analysis
Protocol Name

Sulfuric Acid Solubilization of Plant Biomass

Authors
Saffold D., Katrina
Complex Carbohydrate Research Center, University of Georgia
KeyWords
Reagents

Concentrated sulfuric acid

Deionized water

Instruments

Vortex mixer

Heating block set to 121˚C

Methods
1.

Sulfuric Acid Solubilization of Plant Biomass

1) 

 Carefully weigh 10–15 mg of Alcohol Insoluble Residue from plant cell walls into a glass, screw cap tube.

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2) 

 In a 15mL falcon tube, carefully add 2.0 mL of concentrated sulfuric acid to 1.0 mL of deionized water. This will yield a 72% solution. Make this fresh each time.

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3) 

 When the acid has cooled to room temperature, pipette 500 μL into each sample aliquot. Vortex gently to ensure that the acid has saturated all the sample particles.

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4) 

 Incubate the samples at room temperature for 1 h.

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5) 

 Carefully add 4.5 mL of water to each sample and vortex well.

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6) 

 Place in a heating block set to 121°C and incubate for 1 h, mixing vigorously every 15–20 min.

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7) 

 Remove from heat and allow samples to cool to room temperature.

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8) 

 Soluble hydrolysates are ready for analysis.

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