Detailed study of Brazil nut (Bertholletia excelsa) oil micro-compounds: phospholipids, tocopherols and sterols

Chunhieng, Thavarith; Hafidi, Abdellatif; Pioch, Daniel; Brochier, José; Montēt, Didier

doi:10.1590/s0103-50532008000700021

Cited by 51 publications

(48 citation statements)

References 15 publications

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“…27,28 The oxidative metabolism can be evaluated by the quantification of oxygen consumption or the formation of derivatives from cellular oxidative metabolism, superoxide anion being among them. 29,30 In this context, Brazil nut stands out for presenting high content of oil (around 45,2%), comprising palmitic, stearic, oleic, and linoleic acids , 31 vitamins, minerals, [32][33][34] and other compounds, such as tannins, ellagic acid, curcumin, flavonoids, and isoflavones. 35 Then, the aim of this study was to develop and characterize a Brazil nut oil microemulsion system and evaluate the effect of this microemulsion on the superoxide release in human phagocytes.…”

Section: Introductionmentioning

confidence: 99%

Microemulsion of Brazil nut oil as a natural product to improve superoxide release in human phagocytes

et al. 2017

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The aim of this study was to develop and characterize a Brazil nut oil microemulsion system and determine the effect of this microemulsion on the superoxide release in human phagocytes. The microemulsion was formulated using distilled water, Brazil nut as the oily phase, Sorbitan monooleate, Polysorbate 80, and butan-1-ol. Hydrophile-lipophile balance of Brazil nut oil was determined, pseudoternary diagrams were prepared, and microemulsion diagram regions were preselected. Preliminary and accelerated stability tests, rheological characterization and dynamic light scattering were performed. The immunomodulatory effect of the microemulsion on the interactions with leukocytes was determined by superoxide release. The developed formulations were classified as oil-in-water, showed a Newtonian profile, with linear viscosity and droplet sizes of 46.9; 66.5 and 34.3 nm. When we assessed the interaction of the microemulsion of Brazil nut oil with phagocytes, we observed an increase in superoxide release. Our findings indicate that the developed formulation improved the immunomodulatory activity of the Brazil nut oil, proving to be a natural product option for future applications, in particular for infectious diseases.

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Section: Introductionmentioning

confidence: 99%

Microemulsion of Brazil nut oil as a natural product to improve superoxide release in human phagocytes

et al. 2017

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“…The Brazil nut (Bertholletia excelsa HBK) is well-known as a relevant food with nutritional properties, such as a high protein content (15-20%) and sulfur amino acids, 60-70% lipids (Essential fatty acids), vitamin E (Chunhieng et al 2008) and antioxidant properties due to its selenium content (Ryan et al 2006). Selenium (Se) is an essential micronutrient that, once incorporated into selenoproteins, performs important functions in the human body, participating in antioxidant defense, in the immune system and in the regulation of thyroid function (Rayman 2000).…”

Section: Introductionmentioning

confidence: 99%

Brazil nuts: determination of natural elements and aflatoxin

et al. 2012

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A study was carried out to evaluate the association of levels of radioactivity, selenium and aflatoxin in shelled Brazil nuts, which were classified in different sizes, for export. The selenium determinations were performed by inductively coupled plasma optical emission spectrometry (LOQ = 3.0 µg g -1 ), and aflatoxins were detected by Liquid chromatography-mass spectrometry (LOQ = 0.85 µg kg -1 ), recovery rates were between 92 and 100%. Radioactivity was measured by high-resolution gamma spectrometry. The selenium mean concentration was (22.7 ± 7.4) µg g Ra. There was no statistically significant association between the level of selenium and the activity of radionuclides, however, there was correlation between the radionuclides. Aflatoxins above the quantification limit were not found. Keywords: radioactivity; selenium; Bertholletia excelsa. Castanha do Brasil: determinação de elementos naturais e aflatoxinas resUMoUm estudo foi realizado para avaliar a associação dos níveis de radioatividade, selênio e aflatoxinas em castanha-do-Brasil descascada, que foram classificadas em diferentes tamanhos, para exportação. As determinações de selênio foram realizadas por espectrometria de emissão óptica com plasma indutivamente acoplado (LOQ=3,0 µg kg -1 ) e aflatoxinas foram detectadas por LC-MSMS (LOQ=0,85 µg kg -1 ), as taxas de recuperação ficaram entre 92 e 100%. A radioatividade foi medida por espectrometria gama de alta resolução. A concentração média de selênio foi de (22,7 ± 7,4) Ra. Não houve associação estatisticamente significativa entre o nível de selênio e a atividade de radionuclídeos, no entanto, houve correlação entre os radionuclídeos. Não foi encontrado aflatoxinas acima do limite de quantifcação. PAlAvrAs-chAve: radioatividade, selênio, bertholletia excelsa.

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“…In addition to these, MUFA consumption can be arranged according to low-density lipoprotein, cholesterol, and total cholesterol levels [14,26,31,32]. Among the works of many fatty acids nuts, the MUFA and PUFA content of almond seeds were found to be higher than in other popular foods such as walnuts, peanuts, pine nuts, Brazil nuts and olives [33,34]. This is one of the important factors of almond seed.…”

Section: Resultsmentioning

confidence: 99%

Major Fatty Acids Composition of 32 Almond (Prunus dulcis (Mill.) D. A. Webb.) Genotypes Distributed in East and Southeast of Anatolia

Karatay¹,

Aslan²

2014

Turk J Bioch

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Major fatty acids composition of 32 almond (Prunus dulcis [Mill.] Hara and Radin (1978) method were used. Fatty acids content were determined using gas chromatographic (GC) analysis. The datas were evalulated with SPSS 17.0 statistical program. Results: In the gas chromatographic analysis, palmitic acid (16:0), palmitoleic acid (16:1), stearic acid (18:0), oleic acid (18:1), linoleic acid (18:2), and linolenic acid (18:3) were determined to be 5.34%, 0.70%, 0.85%, 74.46%, 17.89%, and 0.75% respectively. Saturated fatty acids (SFA) 6.19%, unsaturated fatty acids (USFA) 93.81% and a rate of USFA/SFA of 15.40, monounsaturated fatty acids (MUFA) 75.16%, polyunsaturated fatty acids (PUFA) 18.65% and a MUFA/PUFA ratio of 4.32 were found. In the correlation analysis, the highest correlation coefficient (r=-0.988) was detected between oleic acid and linoleic acid. Relationships among almond samples were partially identified with the cluster analysis. Conclusion: In this study, the variations were found between almond genotypes collected from different locations in terms of fatty acids compositions. Besides, the almond genotypes that have high quality unsaturates fatty acids such as high oleic acids and low linoleik acids content were determened. Key Words: Almond, seeds fatty acid composition, correlation, cluster analysis Conflict of Interest: The authors declare no conflict of interest. ductivity, resistance to pests and diseases, etc.) were taken into account by human selection pressure when looking for the adequate genotypes adapted to local conditions and to the preference of the consumers. The genotypes having incorporated these highly selected traits represent very valuable germplasm for addressing future challenges in almond breeding. As a consequence, these genotypes are preserved, characterized in several almond collections and incorporated into advanced breeding programs [16]. Chemical composition of almond kernels has only been partially studied. This information would be crucial to increase the knowledge of their diversity, the nutritional and healthy value of the kernels, and the possibility of selecting the most adequate parents in a breeding program for increasing kernel quality [9]. In this study, fatty acid composition, correlation and relationship levels of 32 different almond genotypes distributing to East and Southeast Anatolia Regions seeds have been revealed. These findings can be used to identify almond fatty acids quality and selections of almond genotypes for breeding programs and serving to different productions. ÖZET Materials and Methods Almond seed sources32 different genotypes of Prunus dulcis (Mill.) D. A. Webb's mature seeds were collected from different localities of South and Southeast Anatolia Regions (Table 1). From these, the genotypes numbered 37, 42 and 53 are plain, the genotype numbered 43 is bitterish and all other genotypes are composed of sweet almonds. Chemicals, organic solvents, equipment and toolsThe chemicals for fatty acids analyses; palmitic acid (16:0), palmitoleic...

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Detailed study of Brazil nut (Bertholletia excelsa) oil micro-compounds: phospholipids, tocopherols and sterols

Cited by 51 publications

References 15 publications

Microemulsion of Brazil nut oil as a natural product to improve superoxide release in human phagocytes

Microemulsion of Brazil nut oil as a natural product to improve superoxide release in human phagocytes

Brazil nuts: determination of natural elements and aflatoxin

Major Fatty Acids Composition of 32 Almond (Prunus dulcis (Mill.) D. A. Webb.) Genotypes Distributed in East and Southeast of Anatolia

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