Effects of the extraction conditions on the yield and composition of rice bran oil extracted with ethanol—A response surface approach

Oliveira, Rafael L.; Oliveira, Vinícius da Silva; Aracava, Keila Kazue; Rodrigues, Christianne Elisabete da Costa

doi:10.1016/j.fbp.2011.01.004

Cited by 90 publications

(50 citation statements)

References 31 publications

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“…Although these studies used different extraction condition and extraction method, as well as different rice species, the effect of solvents was similar. This indicated that the properties of solvent such as the polarity and the structure of solute, directly affected the phytochemical compositions in rice bran extract 11 . α-Tocopherol molecule contains an alkyl side chain and a hydroxyl group which attached to a benzene ring and an oxygen atom attached at para-position to another oxygen atom.…”

Section: Extraction Solvent Extraction Yield (G/100 G Rice Bran)mentioning

confidence: 99%

“…Different species of rice bran had different percents of fatty acids in the extracts. However, these three main fatty acids were found to be the major components in rice bran oils 11,12 . It was noteworthy that methanol extract had fewer lipid compositions than isopropanol extract and hexane extract because of the high polarity of methanol.…”

Section: Extraction Solvent Extraction Yield (G/100 G Rice Bran)mentioning

confidence: 99%

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Development of γ-Oryzanol Rich Extract from Leum Pua Glutinous Rice Bran Loaded Nanostructured Lipid Carriers for Topical Delivery

et al. 2018

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Section: Extraction Solvent Extraction Yield (G/100 G Rice Bran)mentioning

confidence: 99%

Section: Extraction Solvent Extraction Yield (G/100 G Rice Bran)mentioning

confidence: 99%

Development of γ-Oryzanol Rich Extract from Leum Pua Glutinous Rice Bran Loaded Nanostructured Lipid Carriers for Topical Delivery

et al. 2018

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“…Face à sua natureza polar, o etanol é um solubilizante mais fraco de triacilgliceróis que o hexano e é capaz de solubilizar outros componentes presentes na célula como água e compostos bioativos . A solubilidade dos óleos vegetais em etanol é dependente da temperatura e do conteúdo de água presente no solvente (OLIVEIRA et al, 2012).…”

Section: Introductionunclassified

EXTRAÇÕES DE ÓLEO DA POLPA DE ABACATE (Persea americana MILL) UTILIZANDO DIFERENTES SOLVENTES

Oliveira¹,

Menezes²

2017

JCEC

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RESUMO: O abacate (Persea americana Mill) é um fruto originado do continente ABSTRACT: Avocado (Persea americana Mill) is a fruit originated from the American continent, widely produced in Brazilian territory. Its fleshy pulp provides the extraction of a high quality oil containing several bioactive compounds. In this work, the viability of avocado oil extraction was evaluated using different extraction conditions. The avocado pulp was dried in an oven, and then milled to obtain a bran. Extractions were performed with 3 g of the sample and varying amounts of solvent (ethanol, hexane, isopropanol and acetone) to obtain different solid: solvent ratios (1: 5, 1: 7.5 and 1:10). The system was incubated in Shaker at constant temperature (35 °C, 45 °C and 55 °C)

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“…The conventional extraction method is extraction by means of maceration method using different types of organic solvent. Generally this method is used as an elementary method in extracting many valuable compounds [1], [2]. The important parameters which might be affected on amount of obtained substance are the time, the material and the solvent ratio and type of solvent.…”

Section: Introductionmentioning

confidence: 99%

Gamma-Oryzanol Extraction from Upland Rice Bran

Ruen-ngam¹,

Thawai²,

Nokkoul³

et al. 2014

IJBBB

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Abstract-Gamma-Oryzanol is one type of antioxidant and has a good effect for health. Gamma-Oryzanol can be fould in rice bran which is the waste from rice milling process. Upland rice is one type of rice which can be grown in the upland area especially in the southern part of Thailand. The upland rice with species of Dawk Pa-yawmhas has been used in this research. There are many ways to extract gamma-oryzanol from rice bran. Maceration is conventional and useable extraction method in gamma-oryzanol extraction. Solvent is one crucial parameter in extraction. Many types of organic solvent such as hexane ethyl acetate acetone isopropanol and ethanol are investigated here. The extraction conditions such as the effect of soaking time, rice and solvent ratio also examined. The highest amount of rice bran oil obtains from acetone as solvent with the ration of rice bran and solvent is 1:4. Moreover the extracted product is also quality checked by HPLC method. The chromatogram clearly shows the peak of gamma-oryzanol.Index Terms-Dawk Pa-yawn upland rice, Gamma-oryzanol, maceration, rice bran.

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Effects of the extraction conditions on the yield and composition of rice bran oil extracted with ethanol—A response surface approach

Cited by 90 publications

References 31 publications

Development of γ-Oryzanol Rich Extract from Leum Pua Glutinous Rice Bran Loaded Nanostructured Lipid Carriers for Topical Delivery

Development of γ-Oryzanol Rich Extract from Leum Pua Glutinous Rice Bran Loaded Nanostructured Lipid Carriers for Topical Delivery

EXTRAÇÕES DE ÓLEO DA POLPA DE ABACATE (Persea americana MILL) UTILIZANDO DIFERENTES SOLVENTES

Gamma-Oryzanol Extraction from Upland Rice Bran

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