Deodorization and finished oil handling

Gavin, Arnold M.

doi:10.1007/bf02582331

Cited by 29 publications

(15 citation statements)

References 3 publications

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“…Also, the storage temperatures vary considerably, depending on the type of oil, location, time of storage, the need for heating, etc. (1). However, those ranges shown are typical for a wide variety of oils.…”

Section: Energy Flow For Edible Oil Processingmentioning

confidence: 86%

Energy conservation in edible oil processing (US view)

Gavin

1983

J Americ Oil Chem Soc

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Section: Energy Flow For Edible Oil Processingmentioning

confidence: 86%

Energy conservation in edible oil processing (US view)

Gavin

1983

J Americ Oil Chem Soc

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“…Odoriferous components are volatile molecules, such as small molecular weight aldehydes and ketones, and in edible oils are usually present in concentrations of a few parts per million (2,18,19). Characterization of volatiles is possible by the use of very sensitive methodologies, both for collection and analysis.…”

Section: Discussionmentioning

confidence: 99%

“…Deodorization is an important step in edible oil refining aimed at the removal of odoriferous and taste-bearing compounds from the oil. High temperatures cause the breakdown of molecules; the combination of high temperature and low (subatmospheric) pressure aids in volatilization of molecules, which are then stripped mainly by absorption into steam bubbles (1,2). Despite the high efficiency of the current process, it is generally accepted that it is beneficial to process edible oils at low temperatures in order to prevent undesirable effects, such as partial destruction of vitamins and formation of unwanted by-products such as trans isomers and polymers (1,(3)(4)(5).…”

mentioning

confidence: 99%

Nitrogen bubble refining of sunflower oil in shallow pools

Tsiadi

Stavrides²,

Handa-Corrigan³

2001

J Americ Oil Chem Soc

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High‐temperature steam deodorization of sunflower oil results in the formation of unwanted by‐products, such as trans isomers and polymers, and partial destruction of vitamins. There is an urgent need to develop a process that replaces steam with an inert gas such as nitrogen. The use of nitrogen bubble sparging at low temperatures has recently been reported as a technique to strip volatiles from edible oils. In this study, a hypothesis was proposed that nitrogen bubbles sparged at temperatures of 25 to 150°C are able to remove odoriferous, surface‐active, or volatile contaminants from shallow pools of sunflower oil. Analysis of the composition of sunflower oil that had been sparged at 3 mbar pressure showed that both the odor and peroxide content of the oil were considerably reduced to values that are commercially acceptable. Odor improvement occurred at temperatures between 100 and 150°C, while the peroxide content reduction was achieved at a temperature of 150°C. There were no significant improvements in the free fatty acid concentration or color.

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“…This is attractive in several respects: It is easy to design and to operate, has a low investment cost, and is very flexible for product changeovers. However, it also has disadvantages: The times required to process a batch are quite long (e.g., 8 to 12 h, which implies a low productivity) due to poor vapor-liquid contacting efficiency, and the stripping steam consumption per ton of treated oil is high (Gavin, 1981;O'Brien, 2009). At industrial scale, the stripping steam requirement for batch deodorizers is about 2 to 4% of the oil to be treated, whereas continuous and semi-continuous deodorizers need 0.75 to 1.5%, and continuous thin-film systems can operate with as little as 0.3 to 0.6% steam (Carlson, 1996).…”

Section: Batch Deodorizationmentioning

confidence: 99%

A bio-renewable surfactant with a trick up its sleeve

Esther-Joseph¹,

Krumm²

2017

INFORM

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Deodorization and finished oil handling

Cited by 29 publications

References 3 publications

Energy conservation in edible oil processing (US view)

Energy conservation in edible oil processing (US view)

Nitrogen bubble refining of sunflower oil in shallow pools

A bio-renewable surfactant with a trick up its sleeve

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