Effect of controlled differential sieving processing on micronutrient contents and in vivo antioxidant activities of Hibiscus sabdariffa L. calyxes powder

Deli, Markusse; Nguimbou, Richard Marcel; Baudelaire, Elie; Yanou, Nicolas Njintang; Scher, J.; Mbofung, Carl Moses

doi:10.1007/s10068-020-00828-1

Cited by 10 publications

(16 citation statements)

References 42 publications

(50 reference statements)

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“…The different extracts exhibited similar antiradical powers. The free radical scavenging capacity of the extracts were better than those obtained by Deli et al, (2020) [ 32 ] on H . sabdariffa fractions according to size (46.00 μg ml -1 ± 3.46 μg ml -1) for a particle size of 0–180 um.…”

Section: Resultscontrasting

confidence: 69%

Hibiscus sabdariffa: Genetic variability, seasonality and their impact on nutritional and antioxidant properties

et al. 2022

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This study consisted of the physicochemical, phytochemical and antioxidant characterisation of two varieties of Hibiscus sabdariffa, to evaluate the influence of genetic and environmental factors on these parameters leading to an objective and rigorous classification of our extracts. To this end, calyxes and seeds of the red and white phenotypes were collected in Bobo-Dioulasso, Dano and Nouna respectively in December 2019 and 2020. Principal component analysis showed that physico-chemical and biochemical parameters could potentially be used to discriminate varieties. The calyxes of the sabdariffa variety showed the best physicochemical profile (total phenolics, flavonoids, ascorbic acid), pigments (anthocyanins, chlorophyll) and antioxidant activity (free radical scavenging and SOD activity) while the seeds showed the best carbohydrate, lipid and peroxidation inhibition content. In view of these results, the red phenotype has an interesting nutritional and therapeutic potential. It could therefore be interesting candidate in the pharmaceutical and food industries.

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Section: Resultscontrasting

confidence: 69%

Hibiscus sabdariffa: Genetic variability, seasonality and their impact on nutritional and antioxidant properties

et al. 2022

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“…The results of vitamin C content showed that small particle size fractions were more concentrated with vitamin C than large particle size fractions. These results are not similar to those found by Deli et al (2020) on the calyxes of Hibiscus sabdariffa powder fractions; they found no significant difference between the different particle size fractions. In addition, Djantou (2016) showed that, they were no significant difference (p ˂ 0.05) between mango powders of small particles size and those of large particles size.…”

Section: Vitamin Carotenoids and Saponin Contentscontrasting

confidence: 99%

“…Our study showed that the ethanolic extract has shown high vitamin C content compared to all CDSp powder fractions of D. mespilifomis fruits. These results are similar to those found by Deli et al (2020) on the CDSp powder fractions and ethanolic extract of the calyxes of H. sabdariffa. The abundance of vitamins C in the fractions of < 50 µm may be explained by the fact that the finest particles would be individualized during grinding and would pass preferentially to the smaller particle size during sieving.…”

Section: Vitamin Carotenoids and Saponin Contentssupporting

confidence: 91%

“…Our result showed that grinding could liberate bioactive compounds which have antioxidant activity. In addition, the grinding of vegetables results in a breakdown of the plant cell structure, facilitating micronutrients release and improvement of their bioavailability (Lemmens et al, 2010;Svelander et al, 2011;Knockaert et al, 2012;Moelants et al, 2012;Palmero et al, 2013;Deli et al, 2020). Their release and incorporation into the micelles depend on the level of disruption of plant tissues and cells during the grinding and digestion process (Low et al, 2015).…”

Section: Vitamin Carotenoids and Saponin Contentsmentioning

confidence: 99%

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2021

Int. J. Mod. Biol. Res.

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The influence of solvent extractions (ethanolic and hydroethanolic extract) and extraction by controlled differential sieving processing (CDSp) on chemical content, in vitro and in vivo antioxidant capacity of Diospyros mespiliformis fruits powders was investigated. D. mespiliformis fruits powder were finely ground and fractionated by CDSp into four particle size fractions (< 50 μm; 50 -180 μm; 180 -315 μm; and > 315 μm). The chemical components determined were carotenoids, vitamin C, vitamin A and saponin. The in vitro antioxidant activity was carried out using 2,2-Diphenyl-1-picrylhydrazyl (DPPH) radical scavenging. To evaluate the in vivo antioxidant activity against high fat diet (HFD) induced hyperlipidemia in rats; the different particle size powder fractions, ethanolic and hydroethanolic extract of D. mespiliformis fruits were administered orally (600 mg/kg, po) for 30 days, with HFD and the effect of extract on enzymatic antioxidants like superoxide dismutase (SOD), catalase (CAT) and peroxidase were estimated in the blood, heart, liver and kidney. Toxicity parameters like alanine transaminase and aspartate aminotransferase were evaluated in these organs. The ˂ 50 µm fraction contained higher carotenoids (19.27 ± 0.21 mg/100 g DW) and vitamin A (3.21 ± 0.03 mg/100 g DW) than the other fractions, unsieved powder (6.87 ± 0.11 mg/100 g DW for carotenoids and 1.15 ± 0.02 mg/100 g DW for vitamin A) ethanolic extract (7.02 ± 0.30 mg/100 g DW for carotenoids and 1.17 ± 0.04 mg/100 g DW for vitamin A) and hydroethanolic extract (3.56 ± 0.19 mg/100 g DW for carotenoids and 0.59 ± 0.03 mg/100 g DW for vitamin A) of D. mespiliformis fruits. The vitamins were highly concentrated in ethanolic extract (12.22 ± 0.02 mg/100 g DW) followed by powder fraction of < 50 µm (11.11 ± 0.41 mg/100 g DW). The different samples of D. mespiliformis fruits powder improved the SOD, catalase, peroxidase, alanine transaminase and aspartate aminotransferase levels significantly as compared to the control group. The present study has revealed that the fraction, < 50 μm powder of D. mespiliformis fruits have significant in vivo antioxidant activity than the ethanolic extract and can be used to protect tissues from oxidative stress.

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“…Using this technique, many authors demonstrated that powder fractionation resulted in concentrating polyphenols in finer particle size [20] [21] [22]. Otherwise, our previous study reported that finer fractions (<180 µm and 180 -212 µm) of Dichrostachys glomerata, Adansonia digitata, Boscia senegalensis and Hibiscus sabdariffa concentrated more polyphenols, micronu-trients and antioxidant activities as ethanolic extract [23] [24] [25]. However, there is no study on the effect of powder fractionation on the EO phytochemicals in relation to their antioxidant activities.…”

Section: Introductionmentioning

confidence: 99%

Phytochemical Profile and <i>In Vitro</i> Antioxidant Properties of Essential Oils from Powder Fractions of <i>Eucalyptus camaldulensis</i> Leaves

Noumi¹,

Nguimbou²,

Tsague³

et al. 2021

AJPS

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Dried leaves of Eucalyptus camaldulensis were finely grinded and fractionated by sieving into four granulometric classes (<100 µm, 100 -200 µm, 200 -355 µm and >355 µm). The obtained powder fractions were used for essential oil (EO) extraction by hydrodistillation and their phytochemical profile and in vitro antioxidant activities were evaluated. The mother powder (unsieved powder) was used for comparison. Particle size exerted a significant influence (p < 0.05) on the phytochemical composition and in vitro antioxidant properties of the EOs. Comparatively, the mother powder had the highest contents of α-pinene (55.6%), camphene (3.4%) and limonene (3.7%), while 1,8-cineole (26.6% and 22.4%), exo-fenchol (5.6% and 3.5%), α-campholenol (4.2% and 3.4%), L-trans-pinocarveol (5.5% and 2.7%), L-borneol (12.6% and 6.8%) and α-terpineol (16.4% and 7.6%) are the main compounds of EOs from the <100 µm and 100 -200 µm fractions, respectively. The antioxidant activities of the EOs revealed higher radical-scavenging activities DPPH (90.62% and 70.46%) and ABTS (89.59% and 73.31%) for finer fractions (<100 µm and 100 -200 µm, respectively). The best reducing power (36.15% and 34.27%) were also found in these finer powder fractions which improved by more than 2 times the value of mother powder (reducing power of 17.01%). These results suggest that grinding followed by sieve fractionation concentrates the majority of antioxidant phytochemicals in the EOs of the finer powder fractions of E. camaldulensis leaves. Finer powders could be used as functional ingredients in food formulations for the management of chronic diseases.

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Effect of controlled differential sieving processing on micronutrient contents and in vivo antioxidant activities of Hibiscus sabdariffa L. calyxes powder

Cited by 10 publications

References 42 publications

Hibiscus sabdariffa: Genetic variability, seasonality and their impact on nutritional and antioxidant properties

Hibiscus sabdariffa: Genetic variability, seasonality and their impact on nutritional and antioxidant properties

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Phytochemical Profile and <i>In Vitro</i> Antioxidant Properties of Essential Oils from Powder Fractions of <i>Eucalyptus camaldulensis</i> Leaves

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Effect of controlled differential sieving processing on micronutrient contents and in vivo antioxidant activities of Hibiscus sabdariffa L. calyxes powder

Cited by 10 publications

References 42 publications

Hibiscus sabdariffa: Genetic variability, seasonality and their impact on nutritional and antioxidant properties

Hibiscus sabdariffa: Genetic variability, seasonality and their impact on nutritional and antioxidant properties

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Phytochemical Profile and &lt;i&gt;In Vitro&lt;/i&gt; Antioxidant Properties of Essential Oils from Powder Fractions of &lt;i&gt;Eucalyptus camaldulensis&lt;/i&gt; Leaves

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Phytochemical Profile and <i>In Vitro</i> Antioxidant Properties of Essential Oils from Powder Fractions of <i>Eucalyptus camaldulensis</i> Leaves