Extraction of carotenoids from biological matrices and quantifications remains a difficult task. Accelerated solvent extraction was used as an efficient extraction process for carotenoids extraction from three fruits cultivated in Tunisia: kaki (Diospyros kaki L.), peach (Prunus persica L.) and apricot (Prunus armeniaca L.). Based on a design of experiment (DoE) approach, and using a binary solvent consisting of methanol and tetrahydrofuran, we could identify the best extraction conditions as being 40°C, 20:80 (v:v) methanol/tetrahydrofuran and 5 min of extraction time. Surprisingly and likely due to the high extraction pressure used (103 bars), these conditions appeared to be the best ones both for extracting xanthophylls such as lutein, zeaxanthin or β-cryptoxanthin and carotenes such as β-carotene, which present quite different polarities. Twelve surface responses were generated for lutein, zeaxanthin, β-cryptoxanthin and β-carotene in kaki, peach and apricot. Further LC-MS analysis allowed comparisons in carotenoids profiles between the fruits.
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http://dx.doi.org/10.1016/j.foodchem.2015.03.072 | DOI Listing |
Molecules
February 2022
Unit of Plant Protection Products, INIA-CSIC, Ctra. La Coruña, km. 7.5, 28040 Madrid, Spain.
According to EU guidance SANCO/7525/VI/95 Rev. 10.3, residue data extrapolation from a surrogate major crop to a minor crop can be used for setting maximum residue levels (MRLs) with a reduced number of residue trials and representative selected pesticides.
View Article and Find Full Text PDFPlant Dis
February 2019
Department of Ecology & Environmental System, College of Ecology & Environmental Sciences, Kyungpook National University, Sangju-si, Gyeongsangbuk-do, 37224, Korea (Republic of).
Persimmon (Diospyros kaki) fruit production is severely affected by circular leaf spot worldwide. Mycosphaerella nawae causes circular leaf spot of persimmon (CLSP) and can result in leaf spot, defoliation, early fruit maturation, and subsequent softening and abscission. The morphology and phylogenetic position of M.
View Article and Find Full Text PDFFood Chem
October 2015
Laboratoire Réactions et Génie des Procédés (LRGP), UMR 7274, Université de Lorraine, ENSIC, 1 rue Grandville, 54001 Nancy, France. Electronic address:
Extraction of carotenoids from biological matrices and quantifications remains a difficult task. Accelerated solvent extraction was used as an efficient extraction process for carotenoids extraction from three fruits cultivated in Tunisia: kaki (Diospyros kaki L.), peach (Prunus persica L.
View Article and Find Full Text PDFFood Chem
December 2014
Laboratory of Toxicology, Faculty of Healthy Sciences, University of Brasilia, Campus Darci Ribeiro, Brasilia, DF 70910-900, Brazil. Electronic address:
A multiresidue method for the determination of 46 pesticides in fruits was validated. Samples were extracted with acidified ethyl acetate, MgSO4 and CH3COONa and cleaned up by dispersive SPE with PSA. The compounds were analysed by GC-FPD, GC-μECD or LC-MS/MS, with LOQs from 1 to 8 μg/kg.
View Article and Find Full Text PDFGenet Mol Res
June 2013
Institute of Horticultural Sciences, Jiangxi Academy of Agricultural Sciences, Nanchang, P.R. China.
Retrotransposon-based molecular markers are powerful molecular tools. However, these markers are not readily available due to the difficulty in obtaining species-specific retrotransposon primers. Although recent techniques enabling the rapid isolation of retrotransposon sequences have facilitated primer development, this process nonetheless remains time-consuming and costly.
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