Preparation of solutions for atomic absorption analyses of iron, manganese, zinc, and copper in plant tissue

Arrabidaea chica (Humb. & Bompl.) Verl. is an herb popularly used in the treatment of anemia in the Brazilian Amazon region, and little is known about its mineral content. Therefore, the elemental contents of Cu, Fe, Mn, and Zn were determined in the dried leaves and tea obtained by decoction and infusion of the three varieties of the medicinal plant using flame atomic absorption spectrometry after acid wet digestion of the samples. In general, the levels of the minerals are in good agreement with other studies involving medicinal plants, and the variety AC2 had the highest concentrations of all elements both in dried leaves and tea. Iron was found to be the most abundant in dried leaves (38.4-115.5 μg g(-1)), whereas manganese had the highest extraction efficiencies both in decoction (56.1-62.7%) and infusion (45.6-63.6%). Additionally, the decoction was more efficient in the extraction of almost all elements. The consumption of the decoction of variety AC2 may contribute to a small proportion to the daily requirements of Mn.

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“…Finally, colorless solutions were filtered with a Whatman no. 42 filter paper into 100-mL volumetric flasks and diluted [12].…”

Section: Samplingmentioning

confidence: 99%

Determination of Cu, Fe, Mn, and Zn in the Leaves and Tea of Arrabidaea chica (Humb. & Bompl.) Verl.

Magalhães

Soares

Araujo

et al. 2009

Biol Trace Elem Res

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“…All fruit and wood samples were re-dried at 60°C for at least 3 h immediately before analysis. A 0.5 g sub-sample was weighed and prepared using the wet digestion technique of Baker and Smith (1974). The concentrations of B, Ca, K, Mg, and Zn were determined with an inductively coupled plasma atomic emission spectrophotometer (ICPAES) model Spectroflame P (Spectro Analytical Instruments, Kleve, Germany).…”

Section: Percentage Dry Matter and Minerals Analysesmentioning

confidence: 99%

Between-tree variation in fruit quality and fruit mineral concentrations of Hass avocados

Marques

Hofman²,

Wearing

2006

Aust. J. Exp. Agric.

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Inconsistent internal fruit quality in Hass avocados affects consumer confidence. To determine the influence of individual trees on fruit quality, Hass avocado fruit were harvested from adjacent trees of similar external appearance in 3 commercial orchards in 1998 and 1 orchard in 1999. The trees in each orchard were grown with similar commercial practices and in similar soil types. Within each location, there were significant (P<0.05) differences in the mean ripe fruit quality between trees with respect to fruit body rot severity (mainly anthracnose) with and without cold storage, internal disorders severity due to diffuse discolouration and vascular browning (after cold storage), days to ripen, percentage dry matter, and the percentage of the skin area with purple-black colour when ripe. These effects were also noted in the same orchard in 1999. There were significant (P<0.05) differences in fruit flesh calcium, magnesium, potassium, boron and zinc concentrations between trees. Significant (P<0.05) correlations were observed between average fruit mineral concentrations in each tree (particularly calcium, magnesium and potassium) and body rot severity, percentage dry matter and fruit mass. There was little conclusive evidence that characteristics such as the growth of the non-suberised roots or the degree of scion under- or overgrowth was involved in these tree effects; however, differences between trees with respect to other rootstock characteristics may be involved. The inconsistency of the correlations across sites and years suggested that other factors apart from tree influences could also affect the relationship between fruit minerals and fruit quality.

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“…Isaac and Johnson (1975) and Smith and Schrenk (1972) found no difference between dry ashing and wet ashing for micronutrients in alfalfa, citrus, orchard, pecan, and tomato leaves, and in alfalfa, corn, sorghum, and wheat leaves, respectively. Baker and Smith (1974) also reported no differences for micronutrients in cabbage leaves but reported lower value for Cu in corn cob by dry ashing relative to wet ashing. Our experience has been that for nonleaf samples, such as dried strawberry fruit and wheat flour, lower recoveries occur for Cu by dry ashing.…”

Section: Discussionmentioning

confidence: 94%

Comparative study of ashing techniques for the digestion of horticultural plant samples

Prasad¹,

Spiers²

1978

J. Agric. Food Chem.

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024spectrometer and compared with the spectra derived from authentic compounds or with published spectra. RESULTS AND DISCUSSIONThe compounds isolated and their relative abundance in cinnamon leaf, stem bark, and root bark oils are shown in Table I. Of the compounds identified, eight have not previously been reported in cinnamon oils. The new compounds were the monoterpene, terpinolene, the sesquiterpene, caryophyllene oxide, and six aromatic compounds (benzaldehyde, methyl chavicol, hydrocinnamaldehyde, 2-phenylethyl alcohol, 2-phenylpropyl acetate, and coumarin). A further 24 compounds that have not been previously found in cinnamon oils were tentatively identified and included ten monoterpenes (myrcene, cis-ocimene, trans-ocimene, fenchone, trans-linalool oxide furanoid form, linalyl acetate, bornyl acetate, borneol, geraniol, and geranyl acetate), three sesquiterpenes (Pselanene, y-cadenene, and farnesol), two aliphatic compounds (hexanol and nonanal), and nine aromatic compounds (2-phenylacetaldehyde, 2-phenylethyl acetate, benzyl alcohol, phenol, methyleugenol, methylisoeugenol, 2 -vinylphenol, vanillin, and 2-phenylethyl benzoate). Final identification of these volatiles awaits mass spectral analysis.Most compounds were found in all three oils but the composition of the oils was quite different. The major component in leaf oil was eugenol (-70%) with caryophyllene, linalool, and benzyl benzoate also of some quantitative importance. Cinnamaldehyde (75%) was the major component in stem bark oil with a contribution also from cinnamyl acetate and caryophyllene, while camphor (56%) was the major component of root bark oil with cineole, cu-terpineol, a-pinene, and limonene also of importance.

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Preparation of solutions for atomic absorption analyses of iron, manganese, zinc, and copper in plant tissue

Cited by 37 publications

References 2 publications

Determination of Cu, Fe, Mn, and Zn in the Leaves and Tea of Arrabidaea chica (Humb. & Bompl.) Verl.

Determination of Cu, Fe, Mn, and Zn in the Leaves and Tea of Arrabidaea chica (Humb. & Bompl.) Verl.

Between-tree variation in fruit quality and fruit mineral concentrations of Hass avocados

Comparative study of ashing techniques for the digestion of horticultural plant samples

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