Limitations extractives des ingrédients fonctionnels natifs : lipides bioactifs par modifications chimiques

Mouloungui, Zéphirin; Roche, Jane; Bouniols, A.

doi:10.1051/ocl.2006.0016

Cited by 12 publications

(7 citation statements)

References 39 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Philips et al and Lechner et al found a quantity of total sterols between 2970 and 3600 mg/kg in crude soybean oil, and 3500 mg/kg in crude sunflower oil. The study of Mouloungui et al and Roche et al supported the conclusions stated above. The sterols were present in rapeseed oil in greater quantity (7000 mg/kg against 4050 and 3230 mg/kg in sunflower and soybean oils, respectively).…”

Section: Impact Of the Crushing Process On The Micronutrient Content supporting

confidence: 54%

“…Adapted from Rodriguez‐Acuna et al, Evrard et al , Roche , Zacchi and Eggers , Pregnolato et al , Gutfinger and Letan , Shahidi and Shukla , Ghazani , Ghazani et al , Lechner et al , Mouloungui et al , Ferrari et al , Gogolewski et al , Alpaslan et al , Tasan et al , Verleyen et al , Prior et al , Koski et al , Schwartz et al , Tuberoso et al , Barrera‐Arellano et al , Souci et al , Lee et al , Martin‐Polvillo et al , Sundram et al , Yoshida et al , Basturk et al , Player et al , Rani et al , Gunstone , Delplanque , Medvedovici et al , Kamei et al , Mattila and Kumpulainen , Cai and Arntfield , Kozlowska et al , Naczk et al , Naczk et al , Naczk et al , Shahidi , Thiyam et al , Thiyam et al , Siger et al , Canibe et al , De Leonardis et al , Pedrosa et al , Kumar et al , Sakthivelu et al , Simonne et al , Tsukamoto et al , Wang and Murphy , Wang and Murphy , Xu and Chang , Xu and Chang , Codex Alimentarius International Food Standard , Haiyan et al , De Leonardis et al .…”

Section: Micronutrients Present In Rape Sunflower and Soybean Seedsmentioning

confidence: 99%

See 1 more Smart Citation

Micronutrients in vegetable oils: The impact of crushing and refining processes on vitamins and antioxidants in sunflower, rapeseed, and soybean oils

Fine

Brochet

Gaud

et al. 2015

Euro J Lipid Sci & Tech

View full text Add to dashboard Cite

Tocopherols, phytosterols, polyphenols, and coenzymes Q are naturally present in oilseeds such as sunflower, rape, and soybean. Besides contributing to taste and color, micronutrients help protect against health disorders such as cardiovascular diseases and cancer. However, during the conventional oil manufacturing process, many minor components are lost. Given that diet is a major cause of cardiovascular diseases and cancer, it makes sense to optimize the content of micronutrients in food, and specifically in vegetable oils. These micronutrients have antioxidant properties that inhibit the oxidation of low‐density lipoprotein cholesterol. This review summarizes important recent research emphasizing the impact of crushing and refining processes on the micronutrient content of different vegetable oils. After the crushing step, the total sterol content was high in crude rape, sunflower, and soybean oils, at 4358–10 569, 2212–4146, and 1735–4328 mg/kg, respectively. The tocopherol content was lower, at 464–1458, 725–1892, and 1094–2484 mg/kg, respectively, and the level of phenolics was 113–629, 10–120, and 23–148 mg/kg, respectively. The refining process destroyed micronutrients: 10–36% loss of total tocopherols, 6–52% loss of total sterols, and 93–98% loss of polyphenols. Studies have focused on improving the extraction of tocopherols by alternative heating (microwave treatment, roasting, or steaming processes). These treatments improved tocopherol content, and extraction was faster and consumed less energy. Practical applications: Some researchers later tested the ability of different alternative solvents (supercritical CO2 and pressurized solvents) to raise the concentration of micronutrients. Enzymatic extraction also offered an innovative technique to conserve micronutrients in oils. Researchers and the oil extraction industry have also tested some alternative refining processes, such as alternative neutralization, based on the use of different alkaline agents, and soft refining, which offered the possibility of micronutrient preservation and recovery. Upstream, genetic factors, cultivation conditions, and seed storage strongly influence micronutrient concentration in vegetable oils. Upstream steps in the industrial oil process were important for the nutritional quality of edible oils. This review of micronutrient evolution during oil processing highlights the impact of industrial processes, and points to methods for improved extraction of oil constituents. The micronutrient content in vegetable oils is strongly influenced by crushing and refining processes. A focus on sunflower, rapeseed and soybean oils is performed in this review.

show abstract

Section: Impact Of the Crushing Process On The Micronutrient Content supporting

confidence: 54%

Section: Micronutrients Present In Rape Sunflower and Soybean Seedsmentioning

confidence: 99%

Micronutrients in vegetable oils: The impact of crushing and refining processes on vitamins and antioxidants in sunflower, rapeseed, and soybean oils

Fine

Brochet

Gaud

et al. 2015

Euro J Lipid Sci & Tech

View full text Add to dashboard Cite

show abstract

“…Sunflower oil is the fourth oil most produced in the world and its composition has a high potential to be improved for nutritional and industrial purposes through genetically selection and breeding of seeds (Mouloungui et al, 2006;Merah et al, 2012). The total sterol content of sunflower oil has been reported to range between 3000 and 4000 mg/kg, being the content of free sterols (62.4%) higher than that of the esterified forms (37.6%) (Verleyen et al, 2002).…”

Section: Introductionmentioning

confidence: 99%

Characterization of sunflower oils obtained separately by pressing and subsequent solvent extraction from a new line of seeds rich in phytosterols and conventional seeds

Aguirre

Velasco

Méndez

2014

OCL

View full text Add to dashboard Cite

-In this study we evaluate the chemical composition of sunflower oils obtained separately by pressing and subsequent solvent extraction from a new seeds rich in phytosterols (IASP-18) and conventional seeds . Results have shown that the total content of oil was much lower in the IASP-18 (18.1%) than in the conventional (37.5%) seeds. The extraction yield obtained by pressing was as low as 3% in the IASP-18 seeds and 37.5% in HA-89, while in the solvent extraction it was of the same order (∼18 wt% on seeds extracted by pressing) for the two types of seeds. No significant changes in the fatty acid composition were found between the oils extracted by the two procedures, but the pressed oils presented significantly lower acidity and larger content of the unsaponifiable fraction. Expressed as free sterols, the total sterols were 37-38% more concentrated in the oils extracted with solvent, reaching amounts of 13 700 and 6500 mg/kg in the IASP-18 and HA-89 oils, respectively. No substantial differences were found in the composition of total sterols analysed as free sterols between the oils extracted with the two procedures, but the contents of free sterols and sterol glycosides were much higher in the oils extracted with solvent.Keywords: Sunflower oil / pressing / solvent extraction / phytosterols Résumé -Caractérisation des huiles de tournesol obtenues séparément par pressage et extraction ultérieure par solvant à partir des nouvelles graines riches en phytostérols et des graines conventionnelles. Dans cette étude, nous évaluons la composition chimique des huiles de tournesol obtenues séparément par pressage et ultérieure extraction par solvant, à partir de nouvelles graines riches en phytostérols (IASP-18) et des graines conventionnelles (HA-89). Les résultats ont montré que la teneur totale en huile était beaucoup plus faible dans l'IASP-18 (18,1 %) que dans les des graines conventionnelles (37,5 %). Le rendement d'extraction obtenu par pressage était aussi bas que 3 % dans les graines de l'IASP-18 et de 37,5 % dans les HA-89, tandis que dans le solvant d'extraction, il était du même ordre (∼18 % en poids des graines extraites par pressage) pour la deux types de graines. Aucune modification significative de la composition en acides gras n'a été trouvée entre les huiles extraites par les deux procédures, mais les huiles pressées présentaient une acidité significativement inferieur et supérieure teneur de fraction insaponifiable. Exprimé en stérols libres, les stérols totaux étaient 37-38 % plus concentrés dans les huiles extraites avec solvant, atteignant, respectivement, les montants de 13 700 et 6500 mg/kg dans les huiles d'IASP-18 et de HA-89. Aucune différence substantielle n'a été trouvée dans la composition de stérols totaux analysés sous forme de stérols libres entre les huiles extraites avec les deux procédés, mais le contenu de stérols libres et les glucosides de stérols étaient beaucoup plus élevés dans les huiles extraites avec solvant.Mots clés : Huile de tournesol / pressage / extraction par so...

show abstract

“…O óleo é de excelente qualidade, e reconhecidamente utilizado por suas propriedades medicinais, sendo a cultura ainda usada pela fauna melífera, produção de silagem e forragem, adubação verde, melhoradora do solo e ornamental (UNGARO et al, 2009). Os fitoesteróis, presentes nos aquênios, relativamente, em altas concentrações, têm sido estudados pela sua grande importância alimentar e industrial (FOLMER, 2003;MOREAU;WHITAKER;HICKS, 2002;MOULOUNGUI;ROCHE;BUONIOLS, 2006). Por sua capacidade de produção de óleo vegetal em diferentes condições edafoclimáticas, é uma das quatro oleaginosas recomendada para cultivo no Rio Grande do Sul (SILVA;FREITAS, 2008).…”

Section: Introductionunclassified

“…No caso do girassol, a interceptação de radiação solar afeta a produção das plantas nos diferentes estádios, sendo que no período de enchimento dos aquênios esta afeta tanto o peso e a concentração de óleo nos aquênios (ECHARTE et al, 2010), quanto à partição dos ácidos graxos do óleo e outros constituintes (IZQUIERDO et al, 2009), principais componentes de utilidade industrial (FOLMER, 2003;MOREAU;WHITAKER;HICKS, 2002;MOULOUNGUI;ROCHE;BOUNIOLS, 2006). Portanto, a escala mostrase como um importante instrumento de avaliação de dano foliar que posteriormente pode auxiliar nas estimativas de prejuízos na produção final da cultura.…”

Section: Introductionunclassified

Escala diagramática de quantificação de dano causado por granizo em folhas de girassol

Lucas¹,

Heldwein²,

Maldaner³

et al. 2012

Rev. Ciênc. Agron.

View full text Add to dashboard Cite

. Foram coletadas 243 folhas danificadas que antes da coleta tiveram seu perímetro redesenhado com o auxílio de folhas inteiras de formato similar. Após a determinação da porcentagem de área danificada, foram selecionadas imagens para compor a escala diagramática logarítmica. O teste da escala foi realizado por 10 diferentes observadores em 24 folhas sorteadas dentre as 243 coletadas. A acurácia e a precisão de cada avaliador foram determinadas por regressão linear simples entre o dano real e o estimado com o auxílio da escala diagramática, além destes, utilizou-se a Raiz do Quadrado Médio do Erro (RQME), o erro absoluto e o coeficiente de determinação (R 2 ) da regressão linear. Verificou-se que a escala é adequada para observação de dano foliar por granizo. Palavras-chave: Helianthus annuus. Análise foliar. Evento meteorológico.ABSTRACT -The objective of this study was to develop a diagrammatic scale for the visual assessment and the quantification of hail damage in sunflower leaves. The study was carried out in an experimental area in Santa Maria (RS) during the agricultural year of 2008/2009, the damage being caused by a hail-storm event which occurred on 8 January, 2009, with the sunflower plants in full bloom (R5.1) and a leaf-area index of 2.2 m 2 m -2 . A total of 243 damaged leaves were collected, which before collection had their outlines redrawn with the aid of complete leaves of similar shape. After determining the percentage of the damaged area, images were selected to make up the diagrammatic logarithmic scale. A test of the scale was undertaken by 10 different observers on 24 randomly selected leaves from the 243 collected. The accuracy and precision of each appraiser were determined by simple linear regression of actual damage and that estimated with the aid of the diagrammatic scale, in addition we used the Root Mean Square Error (RMSE), the absolute error and the coefficient of determination (R 2 ) of the linear regression. It was found that the scale is suitable for the observation of leaf damage caused by hail.

show abstract

Limitations extractives des ingrédients fonctionnels natifs : lipides bioactifs par modifications chimiques

Cited by 12 publications

References 39 publications

Micronutrients in vegetable oils: The impact of crushing and refining processes on vitamins and antioxidants in sunflower, rapeseed, and soybean oils

Micronutrients in vegetable oils: The impact of crushing and refining processes on vitamins and antioxidants in sunflower, rapeseed, and soybean oils

Characterization of sunflower oils obtained separately by pressing and subsequent solvent extraction from a new line of seeds rich in phytosterols and conventional seeds

Escala diagramática de quantificação de dano causado por granizo em folhas de girassol

Contact Info

Product

Resources

About