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2003•Journal of Natural Science of Heilongjiang UniversityRequires access

Technology study of normal pressure acid hydrolysis on corncob hemicellulose

Zhang Ke-chang

Open publisher page 1 citations

Abstract

The technology of normal pressure acid hydrolysis of corncob hemicellulose is discussed. In the experiment, the 15% sulphuric acid is sprayed on the shredded corncob which are left to soak for some time before hydrolyzed with 90-100℃ vapor. After the hydrolysis, the extraction of solid-liquid is applied to obtain hydrolysis liquid. The experiment proves that the reducing sugar concentration in the hydrolysis liquid would improve considerably if three-step countercurrent extraction is applied.

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What this paper is about

The technology of normal pressure acid hydrolysis of corncob hemicellulose is discussed. In the experiment, the 15% sulphuric acid is sprayed on the shredded corncob which are left to soak for some time before hydrolyzed with 90-100℃ vapor. After the hydrolysis, the extraction of solid-liquid is applied to obtain hydrolysis liquid. The experiment proves that the reducing sugar concentration in the hydrolysis liquid would improve considerably if three-step countercurrent extraction is applied.

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Available abstract

The technology of normal pressure acid hydrolysis of corncob hemicellulose is discussed. In the experiment, the 15% sulphuric acid is sprayed on the shredded corncob which are left to soak for some time before hydrolyzed with 90-100℃ vapor. After the hydrolysis, the extraction of solid-liquid is applied to obtain hydrolysis liquid. The experiment proves that the reducing sugar concentration in the hydrolysis liquid would improve considerably if three-step countercurrent extraction is applied.

Key concepts: Corncob, Hydrolysis, Hemicellulose, Chemistry, Extraction (chemistry), Acid hydrolysis, Chromatography, Organic chemistry

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