Triacylglycerols profiling as a chemical tool to identify mushrooms submitted to gamma or electron beam irradiation

Fernandes, Ângela; Barreira, João C.M.; António, Amílcar L.; Martins, Anabela; Ferreira, Isabel C.F.R.; Oliveira, M. Beatriz P.P.

doi:10.1016/j.foodchem.2014.03.035

Cited by 9 publications

(4 citation statements)

References 25 publications

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“…Individual peaks were identified tentatively by comparing the retention times with pure TAG standards and according to the literature [4]. Quantification of the peaks was made by internal normalization of chromatographic peak area, and the results were expressed in relative percentages, assuming that the detector response was the same for all compounds [23]. The equivalent carbon number (ECN) method was applied to predict the elution order of TAGs according to AOCS Official Method Ce 5b-89 [22].…”

Section: Tag Composition Analysismentioning

confidence: 99%

Interesterification of Soybean Oil and Methyl Stearate Catalyzed by Guanidine‐Functionalized SBA‐15 Silica

Xie

Yang

Zang

2015

J Americ Oil Chem Soc

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The main purpose of this study was to develop a heterogeneous interesterification catalyst for the modification of edible oils to enhance their physicochemical and functional performances. To achieve this, 1,3‐dicyclohexyl‐2‐octylguanidine was covalently immobilized on the SBA‐15 (Santa Barbara Amorphous 15) material and then used as solid catalysts for the interesterification between soybean oil and methyl stearate. The characterization of the guanidine‐functionalized SBA‐15 material included Fourier transform infrared spectra, scanning electron microscopy, elemental analysis, and nitrogen adsorption–desorption techniques. It was shown that the solid base catalyst could efficiently catalyze the interesterification reaction. After the interesterification, the fatty acid profiles and triacylglycerol compositions of interesterified products were substantially varied. The influence of interesterification parameters, such as the substrate ratio, reaction time, reaction temperature and catalyst loading, on the interesterification reaction was investigated regarding the percentage of stearic acid in interesterified triacylglycerols. The stearic acid percentage of 27.9 % was achieved at 100 °C within 4 h when the methyl stearate/soybean oil molar ratio of 6:1 was employed. The catalyst could be recovered easily by filtration and reused without significant loss of activity.

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Section: Tag Composition Analysismentioning

confidence: 99%

Interesterification of Soybean Oil and Methyl Stearate Catalyzed by Guanidine‐Functionalized SBA‐15 Silica

Xie

Yang

Zang

2015

J Americ Oil Chem Soc

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“…Dentre os objetivos buscados pela análise estrutural de TAGs nos trabalho citados, podem ser destacados: caracterização de TAGs formados após interesterificação entre diferentes matérias-primas e possível relação da composição de TAGs com outras propriedades físicas e químicas; 13,[15][16][17][18] investigação de propriedades de matérias-primas pouco estudadas, 11,19 e comprovação de adulteração e modificação de alimentos e óleos. 20,21 Tabela 2. Parâmetros e aspectos da análise composicional de triacilgliceróis por cromatografia líquida de alta eficiência…”

Section: Cromatografia Líquida De Alta Eficiência (Hplc)unclassified

Methods for the Determination of Triacylglycerols Composition: A Review of the Past Decade

Melo¹,

Meneghetti²,

Meneghetti³

et al. 2020

Rev. Virtual Quim.

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Over the last years (2008-2019), the most employed and innovative techniques for the analysis of triacylglycerol composition are presented and discussed in this article. Determining the composition of these molecules is of great importance since they are the main components of naturally occurring oils and fats and are products of great industrial and commercial interest. The application of oils and fats is closely related to the composition of these triacylglycerols in terms of fatty acids, having the chromatographic analysis techniques as the main and most used for the determination of this composition, with reversed phase high performance liquid chromatography and others techniques derived from it being the most employed. Ao longo dos últimos anos (2008-2019), as técnicas mais empregadas e inovadoras para a análise da composição de triacilgliceróis são apresentadas e discutidas neste artigo. A determinação da composição destas moléculas é de grande importância, uma vez que as mesmas são os principais componentes de óleos e gorduras de origem natural e são produtos de grande interesse industrial e comercial. A aplicação de óleos e gorduras está intimamente relacionada à composição desses triacilgliceróis em termos de ácidos graxos, tendo as técnicas cromatográficas de análise, como as principais e mais utilizadas para a determinação dessa composição, sendo a cromatografia líquida de alta eficiência em fase reversa e outras técnicas derivadas desta as mais empregadas.

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“…12,13 However, it does not contain (except when mixed with nuts or seeds) vitamin E, so the supplementation with this component could increase its bioactive value, similar to what has been done in other functionalization approaches using hazelnut skins, 14 chamomile, fennel 15 and elmleaf blackberry. 16 Herein, the mycelia of Pleurotus ostreatus (Jacq. ex Fr.)…”

Section: Introductionmentioning

confidence: 99%

Incorporation of tocopherol-rich extracts from mushroom mycelia into yogurt

et al. 2018

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Consumers are well-informed about food additives and it is likely that they prefer natural additives over their synthetic analogues. Antioxidants represent a major class of food preservatives, among which tocopherols stand out as one of the most important examples. Interestingly, these compounds are present in relevant amounts in the mycelia of in vitro cultured mushrooms. Accordingly, the mycelia from Ganoderma lucidum, Pleurotus ostreatus and Pleurotus eryngii were used as alternative sources of tocopherols. These extracts were incorporated into different yogurt formulations, which were further compared among each other and with yogurts containing commercial α-tocopherol (E307), regarding their nutritional parameters, fatty acid profile and antioxidant activity. The proposed approach was validated as an effective functionalization strategy, particularly in the case of the G. lucidum mycelium, which showed the highest antioxidant potential, most likely as a result of its tocopherol profile. Furthermore, yogurts prepared with each mycelium extract allowed maintaining the nutritional properties observed in the "blank" yogurt formulation.

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Triacylglycerols profiling as a chemical tool to identify mushrooms submitted to gamma or electron beam irradiation

Cited by 9 publications

References 25 publications

Interesterification of Soybean Oil and Methyl Stearate Catalyzed by Guanidine‐Functionalized SBA‐15 Silica

Interesterification of Soybean Oil and Methyl Stearate Catalyzed by Guanidine‐Functionalized SBA‐15 Silica

Methods for the Determination of Triacylglycerols Composition: A Review of the Past Decade

Incorporation of tocopherol-rich extracts from mushroom mycelia into yogurt

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