Aflatoxin removal of peanut meals with aqueous ethanol

Fonseca, Homero; Regitano-D’Arce, Marisa Aparecida Bismara

doi:10.1590/s0103-90161993000100021

Cited by 8 publications

(4 citation statements)

References 3 publications

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“…In Brazil, the high volume of ethanol production allows one to purchase this material at low prices (Rittner, 1992). In general, previous studies of solid-liquid extraction, carried out with ethanol, showed a higher extraction of sugars, phosphatides, pigments and waxes, besides yielding a better meal compared to that obtained with hexane (Beckel et al, 1948;Fonseca & Regitano-d'Arce, 1993;Regitano-d'Arce et al, 1994). The solubility of vegetable oils in ethanol is dependent upon temperature and water content according to Johnson & Lusas (1983).…”

Section: Introductionmentioning

confidence: 84%

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Response surface methodology applied to the analysis of rice bran oil extraction process with ethanol

Rodrigues

Oliveira

2010

Int J of Food Sci Tech

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Vegetable oils can be extracted using ethanol as solvent. The main goal of this work was to evaluate the ethanol performance on the extraction process of rice bran oil. The influence of process variables, solvent hydration and temperature was evaluated using the response surface methodology, aiming to maximise the soluble substances and c-oryzanol transfer and minimise the free fatty acids extraction and the liquid content in the underflow solid. It can be noted that oil solubility in ethanol was highly affected by the water content. The free fatty acids extraction is improved by increasing the moisture content in the solvent. Regarding the coryzanol, it can be observed that its extraction is affected by temperature when low level of water is added to ethanol. On the other hand, the influence of temperature is minimised with high levels of water in the ethanol.

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Section: Introductionmentioning

confidence: 84%

“…In general, previous studies of solid–liquid extraction, carried out with ethanol, showed a higher extraction of sugars, phosphatides, pigments and waxes, besides yielding a better meal compared to that obtained with hexane (Beckel et al. , 1948; Fonseca & Regitano‐d’Arce, 1993; Regitano‐d’Arce et al. , 1994).…”

Section: Introductionmentioning

confidence: 84%

Response surface methodology applied to the analysis of rice bran oil extraction process with ethanol

Rodrigues

Oliveira

2010

Int J of Food Sci Tech

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“…Physical methods include separation by solvent extraction [2][3][4] and adsorption to solid toxin binders such as aluminosilicates, activated carbon and some special polymers [5]. Physical removal is also achieved by electromagnetic waves such as gamma rays [6,7], solar radiation, and microwave heating [8].…”

Section: Introductionmentioning

confidence: 99%

Detoxification of Groundnut Cake Naturally Contaminated with Aflatoxin B1 Using Rhodococcus erythropolis in Shake Flask Bioreactors

Dogan

Onal‐Ulusoy

Bozoğlu

et al. 2016

Waste Biomass Valor

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Degradation of aflatoxin B 1 in groundnut cake, a residue after oil extraction, by Rhodococcus erythropolis was optimized using response surface methodology. The bacterium was first grown in synthetic medium to determine optimal growth conditions using the combination of the Plackett-Burman and Box-Behnken methods and consequently aflatoxin B 1 in groundnut cake slurry was degraded under varying culture conditions. Optimal growth conditions were found as 22.5°C of temperature, pH 7, 100 mL of culture volume in 500 mL flasks, 1 % (v/v) of inoculum size, 135 rpm of agitation speed, 5 g/L of glucose and 5 g/L of peptone concentration according to analysis of the Box-Behnken design. Optimal detoxification conditions were found as 27.4 % (w/v) of solid concentration, 4.88 % (v/v) of inoculum size and 24 h of incubation time by Box-Behnken response surface optimization. Maximum detoxification level was predicted as 92.2 % by the constructed model while the experimental counterpart was 87.3 %. The suggested culture conditions have the potential to decrease aflatoxin B 1 from 200 lg/kg to below 20 lg/kg, the regulatory limit, in feed materials. Graphical Abstract AFB1 contaminated Groundnut meal Liquid Supplement 48 hour grown R. erythropolis culture IncubaƟon Drying 87% Detoxified groundnut meal ExtracƟon & Clean-up HPLC

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“…Some authors also report that there is a higher extraction of sugars, phospholipids, pigments, waxes, and compounds that confer bitterness to the biomass, when the extraction of vegetable oils is made with ethanol, providing that the obtained biomass is of better quality, when compared to that obtained with hexane (Beckel, Belter, & Smith, 1948;Fonseca & Regitano-d'Arce, 1993;Johnson & Lusas, 1983).…”

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confidence: 99%

Solvent effect on the extraction of soluble solids from murici and pequi seeds

Araújo

Oliveira²,

Menezes

et al. 2018

J Food Process Engineering

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The Brazilian cerrado has native species with great potential for use, like murici (Byrsonima crassifolia), and pequi (Caryocar brasiliense Camb). The seeds of these fruits are rich in oils and bioactive compounds. The extraction by solvent is widely used to extract oils from the seeds, being hexane the most used solvent in this process. The objective of this work was to evaluate the effect of alternative solvents on oil/soluble solids extraction efficiency and raffinate retention index of solvent extraction of pequi and murici seeds and thermodynamics parameters of the process, using organic green solvents (ethanol, isopropanol, and acetone) and hexane. The extraction has been performed in a shaker using three different temperatures (35, 45, and 55 °C) at the seed:solvent mass ratio of 1:5 (wt/wt). In the extraction with pure solvents the most efficient solvent for both seeds was hexane, at 55 °C, once greater yield and lower retention index were obtained for this condition, along with isopropanol, for pequi seeds. The thermodynamic analysis of the extraction process for both seeds demonstrated positive results to ΔH, and ΔS, and negative results to ΔG, showing the endothermic nature of the process and its spontaneity. Practical applications A great amount of seeds is daily being wasted from industries and households of an agricultural country like Brazil. In addition, the oil from murici and pequi seeds has enormous and important potential as an intermediate raw material for food and pharmaceutical industries. So, the present experimental study is composed of the recovery of the soluble solids from these fruits’ seeds through a cost‐effective method using green solvents, which are environmentally safe. For this purpose, pure ethanol, pure acetone, and pure isopropanol were used as solvents for the extraction process, and compared to the regular hexane. Parametric effects were also investigated on the extraction process to collect the data for the economic process design, and to encourage new researches.

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Aflatoxin removal of peanut meals with aqueous ethanol

Cited by 8 publications

References 3 publications

Response surface methodology applied to the analysis of rice bran oil extraction process with ethanol

Response surface methodology applied to the analysis of rice bran oil extraction process with ethanol

Detoxification of Groundnut Cake Naturally Contaminated with Aflatoxin B1 Using Rhodococcus erythropolis in Shake Flask Bioreactors

Solvent effect on the extraction of soluble solids from murici and pequi seeds

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