Acetone Extracted Cottonseed Meals Without Catty Odors

Hron, R. J.; Kuk, M. S.

doi:10.1111/j.1365-2621.1989.tb07954.x

Cited by 6 publications

(4 citation statements)

References 6 publications

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“…After extraction, flakes were ground in a laboratory mill to pass a 1-mm sieve after first drying overnight in a hood and further drying 2 to 4 h at 101°C in a draft oven until the flake weight became invariant. Total and free gossypol in the meal was determined by AOCS official methods (6). The ground meal was then sieved over a 20-mesh screen (850 µm opening) to ensure the samples had similar particle sizes and surface-tomass ratios.…”

Section: Methodsmentioning

confidence: 99%

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Cottonseed extraction with mixtures of acetone and hexane

Kuk

Tetlow

Dowd

2005

J Americ Oil Chem Soc

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Cottonseed flakes were extracted with mixtures of nhexane and acetone, with the concentration of acetone varying between 10 and 75%. Adding small amounts of acetone (≤25%) to nhexane significantly increased the extraction of free and total gossypol from cottonseed flakes. Sensory testing detected no difference in the odor of cottonseed meals produced either by extraction with 100% n-hexane or by extraction with a 10:90 (vol/vol) mixture of acetone/hexane. More than 80% of the free gossypol was removed by the 10:90 mixture of acetone/hexane, whereas pure n-hexane extracted about 47% of the free gossypol from cottonseed flakes. A solvent mixture containing 25% acetone removed nearly 90% of the free gossypol that was removable by extraction with pure acetone; the residual meal had only a minimal increase in odor. In contrast, cottonseed meals produced by extraction with pure acetone had a much higher odor intensity. The composition of the cottonseed crude oil was insignificantly affected by the acetone concentration of the extraction solvent. The results indicate that mixtures of acetone and n-hexane can be used as extraction solvents to produce cottonseed crude oil without the concomitant development of odorous meals.Paper no. J11046 in JAOCS 82, 609-612 (August 2005).

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Section: Methodsmentioning

confidence: 99%

“…Early work with acetone showed it to be a suitable oilseed extraction solvent that could also extract gossypol from cottonseed (5). However, acetone-extracted cottonseed meal has a pronounced "catty odor" that may limit its feeding potential (6). Reduction of the seed moisture content has been suggested to reduce this problem.…”

mentioning

confidence: 99%

Cottonseed extraction with mixtures of acetone and hexane

Kuk

Tetlow

Dowd

2005

J Americ Oil Chem Soc

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“…This smell is due to the reaction of mesityl oxide (which is obtained from acetone by condensation reactions) with hydrogen sulphide (coming from the breakdown of one or more of the sulphur-containing amino acids). Further drying of the flakes and solvent before extraction can reduce these unpleasant odours but significantly increases production costs [ 105 ].…”

Section: Green Solvents’ Extractionmentioning

confidence: 99%

Leading Edge Technologies and Perspectives in Industrial Oilseed Extraction

Cravotto

Claux²,

Bartier³

et al. 2023

Molecules

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With the increase in the world’s population and per capita wealth, oil producers must not only increase edible oil production but also meet the demand for a higher quality and variety of products. Recently, the focus has shifted from single processing steps to the entire vegetable oil production process, with an emphasis on introducing innovative technologies to improve quality and production efficiency. In this review, conventional methods of oilseed storage, processing and extraction are presented, as well as innovative processing and extraction techniques. Furthermore, the parameters most affecting the products’ yields and quality at the industrial level are critically described. The extensive use of hexane for the extraction of most vegetable oils is undoubtedly the main concern of the whole production process in terms of health, safety and environmental issues. Therefore, special attention is paid to environmentally friendly solvents such as ethanol, supercritical CO2, 2-methyloxolane, water enzymatic extraction, etc. The state of the art in the use of green solvents is described and an objective assessment of their potential for more sustainable industrial processes is proposed.

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“…It has also been suggested that acetone in combination with hexane and water can be used to extract gossypol (Gastrock et àL, 1965) and aflatoxin (Gardner et al, 1968). Hron and Kuk (1989) reported that cottonseed can be extracted with increased efficiency using acetone to produce meals containing low gossypol and without disagreeable catty odors.…”

Section: Acetonementioning

confidence: 99%

Sequential extraction processing: alternate technology for corn wet milling

Hojilla-Evangelista

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A laboiatoiy extractor-simulator was developed to demonstrate the feasibility of extracting oil from undegermed com, the first step in sequential extraction processing. The effects of flaking and grinding, com variety, and extracting solvent, concentration and temperature on oil recovery were assessed. Protein loss during oil extraction was also evaluated. Flaked com showed better extraction characteristics than ground conu Oil recovery was higher in varieties having substantial amounts of floury endosperm (soft dent and high-lysine com). Ethanol, isopropanol, acetone, butanol, and the butanol:acetone:ethanol mixture (6:3:1) all showed oil recoveries which were either equal to or better than the 72% obtained by conventional prepress hexane extraction methods in industry. Greater oil recoveries were achieved using anhydrous concentrations and temperatures close to the boiling point of the solvent. Low temperature extraction, however, appears feasible when using butanol:acetone:ethanol, ethanol, and isopropanol Butanol, isopropanol and ethanol reduced the total crude protein content of the flaked com, particularly when high aqueous concentrations and high temperatures were used for oil extraction.

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Acetone Extracted Cottonseed Meals Without Catty Odors

Cited by 6 publications

References 6 publications

Cottonseed extraction with mixtures of acetone and hexane

Cottonseed extraction with mixtures of acetone and hexane

Leading Edge Technologies and Perspectives in Industrial Oilseed Extraction

Sequential extraction processing: alternate technology for corn wet milling

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