The reduction of free gossypol in cottonseed flakes during solvent extraction

Arnold, Lionel K.; Juhl, William G.

doi:10.1007/bf02640325

Cited by 3 publications

(2 citation statements)

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“…Cottonseed is found to contain the maximum gossypol, varying from traces to 6% depending upon the plant species, variety and environmental factors like climate, soil type and fertilizer 2 . Gossypol is present in the free form while being in the gland but as soon as these glands are ruptured, gossypol forms a complex with the proteinous part of the seed that results in a non toxic bound gossypol 3 .…”

Section: Introductionmentioning

confidence: 99%

Kinetics and thermodynamics of gossypol extraction from defatted cottonseed meal by ethanol

Saxena

Sharma

Самби

2012

Polish Journal of Chemical Technology

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Gossypol is polyphenolic aldehyde, a toxic substance naturally present in cotton plant to protect it from insects, pests and diseases. Maximum gossypol is concentrated in the seed. After extraction of oil from the cottonseed, the defatted cottonseed meal which contains both the gossypol and proteinous matter is left behind. A number of attempts have been made using different solvents to extract gossypol from the seeds. However, all these efforts have remained in the realm of academic activity only as none of them could be commercialized. If a pilot plant or commercial scale plant is to be developed then the data on the kinetics and thermodynamics of the extraction process is required. In this study ethanol has been used as the solvent at temperature below 323K for removal of gossypol from the defatted seed. This study fi nds the effects of parameters viz. temperature, solvent to solid ratio (SR) and extraction time on the gossypol extraction effi ciency. The data obtained are used to establish the kinetics and thermodynamics of the extraction process.

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Section: Introductionmentioning

confidence: 99%

Kinetics and thermodynamics of gossypol extraction from defatted cottonseed meal by ethanol

Saxena

Sharma

Самби

2012

Polish Journal of Chemical Technology

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“…Researchers have investigated the use of trichloroethylene as a solvent to minimise the free gossypol content with minimal denaturation of proteins (Arnold & Juhl, 1955). The solvent extraction yielded a higher soluble protein content from CSM compared to the earlier heating (cooking) method.…”

Section: Chemical Methods For the Degossypolization Of Csmmentioning

confidence: 99%