Efficiency of Different Plant Foliar Extracts on Grain Protection and Seed Germination in Maize

Rani, Poonam; Devanand, P.

doi:10.3923/rjss.2011.1.14

Cited by 26 publications

(19 citation statements)

References 14 publications

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“…Partial purification of active crude extracts using a modified method of [22] was employed. In this method, the crude extract of T. occidentalis was separated using silica gel (as adsorbent, 70–230 mesh) packed in a chromatographic column.…”

Section: Methodsmentioning

confidence: 99%

Sickled Erythrocytes Reversal and Membrane Stabilizing Compounds inTelfairia occidentalis

et al. 2016

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Background and Purpose. Traditional management of sickle cell disease (SCD) is ubiquitous in Africa. In south-eastern Nigeria, Telfairia occidentalis (T. occidentalis) is strongly recommended for consumption by SCD patients, owing to its presumed therapeutic effect. This study investigates the antisickling and membrane regenerative potentials of T. occidentalis in sickled erythrocytes. Experimental Approach. Sickled erythrocytes obtained from SCD patients were treated with sodium metabisulphite (2%) to induce further sickling. Heat and hypotonic-induced lyses of red blood cells' membranes were also carried out. The RBCs were treated with varying concentration (10.0, 1.0, and 0.1 mg mL−1 and 0.5, 1.0, 1.5, 2.0, and 2.5 mg mL−1, resp.) of T. occidentalis extracts as treatment regimen for in vitro antisickling and membrane stabilizing assays. Extract with peak activity was purified and reused in antisickling assay. Key Results. The antisickling activity of aqueous and methanolic extracts of leaves, seeds, and stem of Telfairia occidentalis at 10.0, 1.0, and 0.1 mg mL−1 revealed that the aqueous leaves extract (10 mg mL−1) exhibited the highest antisickling activity (64.03%) which was significantly (p < 0.05) higher than that of the stem (47.30%) and seeds (37.50%). Partially purified fractions recorded improved antisickling effect (peak activity of 70%). Characterization (using GC-MS) of the most active fraction revealed some bioactive compounds. In the membrane stabilizing assay, methanolic and aqueous stem extracts of T. occidentalis showed the highest effect of 71.85% and 61.29%, respectively. Conclusions and Implications. The results provide scientific evidence for ethnopharmacological use of T. occidentalis in the management of SCD.

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Section: Methodsmentioning

confidence: 99%

Sickled Erythrocytes Reversal and Membrane Stabilizing Compounds inTelfairia occidentalis

et al. 2016

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“…Indeed, several pros of this method are obvious–easiness of use, volatility of essential oils, ability to keep an effective concentration of insecticides within the closed space, and a high possibility to spread the substance evenly, considering even hard‐to‐reach places. Moreover, research of Rani and Devanand () showed that the use of the same leaf extracts by two different methods, fumigation and contact toxicity, demonstrated a higher efficacy of the fumigation method. For example, the extract of Carica papaya yielded 46% mortality in S. oryzae after 72 hr of treatment when added to the diet, but the same extract as a vapor caused almost 100% mortality of these insects.…”

Section: Applicationmentioning

confidence: 99%

“…The extraction process usually starts with freezing and drying of plant tissues, and then shredded tissues are dissolved in water or organic solvents with various polarities. This procedure may significantly influence the activity of extract ingredients (Rani & Devanand, ) and change the penetration of biological membranes, which next causes different physiological effects on tested animals. The choice of organic solvent type is very important during the isolation of pure compounds from plant extracts.…”

Section: Plant‐derived Substances Against Beetle Pests Of Stored Foodmentioning

confidence: 99%

Plant‐Derived Substances Used Against Beetles–Pests of Stored Crops and Food–and Their Mode of Action: A Review

Spochacz

Chowański

Walkowiak-Nowicka

et al. 2018

Comp Rev Food Sci Food Safe

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Plants are sources of numerous active substances that are used to protect crops. Currently, due to the limitations of using synthetic insecticides, plant products have attracted increasing attention as possible pesticides. In this review, we discuss some of the most interesting plant products (for example, Solanaceae, or Asteraceae extracts, Artemisia absinthium or Citrus spp. essential oils, and single compounds like α-chaconine, or α-solanine) that exhibit insecticidal activity against beetles that are pests of stored food products. Next, we describe and discuss the mode of action of these products, including lethal and sublethal effects, such as antifeedant or neurotoxic activity, ultrastructural malformation, and effects on prooxidant/antioxidant balance. Furthermore, the methods of application of plant-derived substances in food storage areas are presented.

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“…Resultantly the vaporized essential oils got easy entrance through the tracheal system of the insects, thus choking them and causing irritation at the same time, hence compelled the insect to flee from the treatment bottle with essential oils, towards the control bottles (having filter paper discs treated with either water or ethanol in them). Similarly highest mortality rate was seen in 10% concentration oils is comparable to the insecticidal activity of extracts of M. paniculata [24][25][26][27].…”

Section: Discussionmentioning

confidence: 74%

Insect Toxicity and Repellent Activity of Phytochemicals from “Flea killer, Boenninghausenia albiflora” against “Black Garden Ant, Lasius Niger” of Pakistan

Mehmood¹

2014

J Bioanal Biomed

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Efficiency of Different Plant Foliar Extracts on Grain Protection and Seed Germination in Maize

Cited by 26 publications

References 14 publications

Sickled Erythrocytes Reversal and Membrane Stabilizing Compounds inTelfairia occidentalis

Sickled Erythrocytes Reversal and Membrane Stabilizing Compounds inTelfairia occidentalis

Plant‐Derived Substances Used Against Beetles–Pests of Stored Crops and Food–and Their Mode of Action: A Review

Insect Toxicity and Repellent Activity of Phytochemicals from “Flea killer, Boenninghausenia albiflora” against “Black Garden Ant, Lasius Niger” of Pakistan

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