HPLC-DAD-APCI/ESI-MS n  analysis of carotenoids and α-tocopherol in Costa Rican  Acrocomia aculeata  fruits of varying maturity stages

Schex, Roland; Lieb, Veronika M.; Jiménez, Víctor M.; Esquivel, Patricia; Schweiggert, Ralf M.; Carle, Reinhold; Steingass, Christof B.

doi:10.1016/j.foodres.2017.11.041

Cited by 61 publications

(44 citation statements)

References 40 publications

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“…As is common practice for Acrocomia harvesting, completely ripe fresh fruits (20-70 according to availability) were collected from each palm from the ground shortly after falling from the fruit bunch. The fruit ripening stage was defined according to previous reports (Schex et al 2018). Fully ripe fruits detach naturally from the bunch (Crocomo and Melo 1996;Montoya et al 2016) and display a brown exocarp and a yellow mesocarp (Schex et al 2018;Lieb et al 2019).…”

Section: Plant Materialsmentioning

confidence: 99%

“…Despite the economic potential of Acrocomia in Costa Rica, native populations have not been sufficiently characterized (Schex et al 2018). Neither has the potential effect of climatic/edaphic conditions on biometric parameters and their relation to oil content and fatty acid composition-as observed in other oleaginous plants (Rached et al 2017; Tous and Romero 2017)-been investigated.…”

Section: Introductionmentioning

confidence: 99%

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Acrocomia aculeata fruits from three regions in Costa Rica: an assessment of biometric parameters, oil content and oil fatty acid composition to evaluate industrial potential

et al. 2020

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Due to increased global demand for vegetable oils, diversification of the supply chain with sustainable sources is necessary. Acrocomia aculeata has recently gained attention as a multi-purpose, sustainable crop for oil production. However, the information necessary for effective selection of promising varieties for agricultural production is lacking. The aim of this study was to assess variability in fruit morphology and oil composition of individual Acrocomia aculeata plants growing wild in different climatic regions of Costa Rica. Fruits at the same ripening stage were collected at three locations, and biometric features, oil content, fatty acid composition of oils from kernels and pulp, as well as fiber composition of husks were determined. Biometric parameters showed high variability among the regions assessed. Moreover, oil content and relative proportions of unsaturated fatty acids were higher at the most tropical location, whereas lauric acid content was lowest under these conditions, indicating a potential environmental effect on oil composition. Pulp oil content correlated positively with annual precipitation and relative humidity, but no clear relation to temperature was observed. The oil chemical composition was similar to that reported for Elaeis guineensis, suggesting that Acrocomia aculeata from Costa Rica may be a suitable alternative for industrial applications currently based on African palm oil. Analysis of husks as a coproduct revealed the possibility of obtaining materials with high lignin and low water and ash contents that could be used as a solid bioenergy source. In conclusion, Acrocomia aculeata oil is a promising alternative for industrial applications currently based on African palm oil and byproducts of its oil production could find additional use as a renewable energy source.

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Section: Plant Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Acrocomia aculeata fruits from three regions in Costa Rica: an assessment of biometric parameters, oil content and oil fatty acid composition to evaluate industrial potential

et al. 2020

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“…3a), respectively. Acetic acid from the mobile phase is presumably attached to the hydroxyl groups of the glucose (Amorim-Carrilho et al, 2014;Hrvolová et al, 2016;Novotny et al, 2005;Schex et al, 2018). Different lipid chains, ranging from C13 to C20, attached to the STX core (Glu-4,4'-DNPA) evidenced the broad variety of the STX homologues in this biosynthetic pathway.…”

Section: Lc-msmentioning

confidence: 99%

Carotenogenesis ofStaphylococcus aureus: new insights and impact on membrane biophysical properties

López

Suesca

Álvarez‐Rivera

et al. 2020

Preprint

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Staphyloxanthin (STX) is a saccharolipid derived from a carotenoid in <Staphylococcus aureus> involved in oxidative-stress tolerance and antimicrobial peptide resistance. In this work, a targeted metabolomics and biophysical study was carried out on native and knock-out S. aureus strains to investigate the biosynthetic pathways of STX and related carotenoids. Identification of 34 metabolites at different growth phases (8, 24 and 48h), reveal shifts of carotenoid populations during progression towards stationary phase. Six of the carotenoids in the STX biosynthetic pathway and three menaquinones (Vitamin K2) were identified in the same chromatogram. Furthermore, other STX homologues with varying acyl chain structures reported herein for the first time, which reveal the extensive enzymatic activity of CrtO/CrtN. Fourier Transform infrared spectroscopy show that STX increases acyl chain order and shifts the cooperative melting of the membrane indicating a more rigid lipid bilayer. This study shows the diversity of carotenoids in S. aureus, and their influence on membrane biophysical properties.

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“…Depending on the solvent system, a good compound separation may require a longer run time and poorer resolution compared with MeOH/ACN/H 2 O/CH 2 Cl 2 . Carotenoid content in tropical pigment-bearing fruits [281,295,300,301,302], and fish [302] have also been described.…”

Section: The Common Ground Among Measurements Performed In Food Anmentioning

confidence: 99%

Liquid Chromatography Analysis of Common Nutritional Components, in Feed and Food

Cortés-Herrera

Artavia

Leiva

et al. 2018

Foods

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Food and feed laboratories share several similarities when facing the implementation of liquid-chromatographic analysis. Using the experience acquired over the years, through application chemistry in food and feed research, selected analytes of relevance for both areas were discussed. This review focused on the common obstacles and peculiarities that each analyte offers (during the sample treatment or the chromatographic separation) throughout the implementation of said methods. A brief description of the techniques which we considered to be more pertinent, commonly used to assay such analytes is provided, including approaches using commonly available detectors (especially in starter labs) as well as mass detection. This manuscript consists of three sections: feed analysis (as the start of the food chain); food destined for human consumption determinations (the end of the food chain); and finally, assays shared by either matrices or laboratories. Analytes discussed consist of both those considered undesirable substances, contaminants, additives, and those related to nutritional quality. Our review is comprised of the examination of polyphenols, capsaicinoids, theobromine and caffeine, cholesterol, mycotoxins, antibiotics, amino acids, triphenylmethane dyes, nitrates/nitrites, ethanol soluble carbohydrates/sugars, organic acids, carotenoids, hydro and liposoluble vitamins. All analytes are currently assayed in our laboratories.

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HPLC-DAD-APCI/ESI-MS n analysis of carotenoids and α-tocopherol in Costa Rican Acrocomia aculeata fruits of varying maturity stages

Cited by 61 publications

References 40 publications

Acrocomia aculeata fruits from three regions in Costa Rica: an assessment of biometric parameters, oil content and oil fatty acid composition to evaluate industrial potential

Acrocomia aculeata fruits from three regions in Costa Rica: an assessment of biometric parameters, oil content and oil fatty acid composition to evaluate industrial potential

Carotenogenesis ofStaphylococcus aureus: new insights and impact on membrane biophysical properties

Liquid Chromatography Analysis of Common Nutritional Components, in Feed and Food

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