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The estimation of some constituents contents in minimally processed vegetable salads purchased in the retail network

100%

Wojcik-Stopczynska B., Grzeszczuk M., Jakubowska B.

Acta Scientiarum Polonorum. Technologia Alimentaria

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2004

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tom 03

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nr 1

Fourteen kinds of “ready to eat” minimally processed vegetable salads (7 days of use-fulness) manufactured by two companies were the material of this investigation. The content of dry matter, total protein, total sugars, crude fibre, total ash, ascorbic acid, nitrates and nitrites were examined. Significant differences between average content of the investigated constituents in dependence on kind of salads were stated. Ascorbic acid content was in range 2.04-30.30 mg-100 g-1 and most of salads (portion of 100 g) might provide 20-40% of the recommended daily dose of ascorbic acid. The quantity of nitrates oscillated between 184.9-768.6 mg NaNO3 -kg-1 and could be qualified as low to middlehigh. Nitrites were absent in most of tested salads and in the others their quantity was low (0.20-0.83 mgNaN02-kg-1).

2

Mining association rules applied to goethite and haematite abundances in manganese-contaminated soils

72%

Ekosse G. I. E., Forcheh N.

Polish Journal of Environmental Studies

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2007

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tom 16

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nr 4

531-538

Mining association rules (MAR) are applied in elucidating on the abundances and association of Fe minerals in soils within the proximity of an abandoned manganese oxide (MnO^) mine. Four hundred soil samples were obtained from a 4 km2 area close to the abandoned mine in Kgwakgwe, Botswana. The Fe minerals in the soil samples were identified by x-ray diffractometry. Results depicted haematite and goe- thite present in different abundances: none, trace, minor and major in soils from the study area but only haematite in soils from the control site. From 16 possible combinations of the two Fe minerals in the soil samples, MAR results for confidence, certainty factor, lift and support, depicted haematite in major quantity to be the most influential. This fact is substantiated by its occurrence in the country shales.

3

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Chemical constituents of water hyacinth (Eichhornia crassipes) methanol leaf extract and its effect on selected enzymes of Periplaneta americana

72%

Adeleke G. E., Adedosu O. T., Ehigie L., Adegbola P. I., Olaniyi A. A., Agoola T. O., Ehigie A. F.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2020

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tom 101

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nr 4

4

Chemical constituents and ovicidal effects of mahlab, Prunus mahaleb L. kernels oil on cotton leafworm, Spodoptera littoralis (Boisd.) eggs

72%

Mead H. M., El-Shafiey S. N., Sabry H. M.

Journal of Plant Protection Research

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2016

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tom 56

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nr 3

The carried out investigations evaluated ovicidal activity of mahlab, Prunus mahaleb L. kernel oil against cotton leafworm, Spodoptera littoralis (Boisd.). The chemical constituents of the fixed oil of mahlab were analyzed using gas-liquid chromatography (GLC). Timnodonic (33.07%), oleic (28.71%) and linoleic (24.35%) were the basic fatty acids, while the major hydrocarbon and sterol were found to be heneicosane (62.57%) and β-sitosterol (10.57%). The LC50 values for the one-day-old egg masses were found to be more susceptible than 3-day-old ones. Moreover, the leaf dip technique occurred to be more efficient than spraying technique. The results also showed abnormalities in the external morphology of egg shell, chorion surface, shell imprints and aeropyles of S. littoralis eggs treated with mahlab and KZ oils as compared to a control by using scanning electron microscope. Generally, the tested oils significantly reduced the activities of transaminase enzymes (AST and ALT), acid and alkaline phosphatases and total soluble protein except mahlab oil on acid phosphatase as compared to a control. Additionally, the oils of both mahlab and KZ oil affected some biological aspects such as incubation period, larval duration, larval mortality and pupal weight comparing to a control.

5

Effect of pruning time on yielding and fruit quality of several early ripening plum cultivars

72%

Sosna I.

Acta Scientiarum Polonorum. Hortorum Cultus

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2010

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tom 09

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nr 1

The aim of carried out research was comparing the effect of different pruning time on cropping and fruit quality of several early ripening plum cultivars. The experiment was conducted at Fruit Experimental Station – Samotwór near Wrocław in 2001–2004. Objects of studies consisted of 8 year-old plum trees of ‘Herman’, ‘Čačanska Rana’, ‘Sanctus Hubertus’ and ‘Čačanska Lepotica’ cultivars budded on ‘Myrobalan’ seedlings (Prunus divaricata). The experiment was established in a randomised block design in three replications with six trees per plot. In 2001–2003, time of tree pruning was differentiated. Half of trees was pruned only at the end of August (summer pruning after harvest of fruit) and the other one only at the end of March (dormant pruning before blooming time). Time of pruning had no influence on yielding and chemical composition of fruit. Soluble solids, vitamin C, magnesium, calcium, potassium and phosphorus contents in fruit were similar independently of pruning time. Mean fruit weight was significantly higher from trees with dormant pruning.

6

Chemical constituents of ethanol extract of leaves and molluscicidal activity of crude extracts from Vitex trifolia Linn.

72%

Jangwan J. S., Aquino R. P., Mencherini T., Picerno P., Singh R.

Herba Polonica

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2013

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tom 59

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nr 4

β-sitosterol and two triterpenoids: ursolic acid acetate and platanic acid have been isolated from ethanolic extract of Vitex trifola leaves. β-sitosterol was previously isolated from the leaves, stem and seeds of Vitex trifolia. Ursolic acid acetate has been isolated for the first time in this plant species. Platanic acid has been reported for the first time in Vitex trifolia and even in the family of this plant: Verbenaceae. These compounds were characterized using spectroscopic methods including 1D-1HNMR, 13CNMR, ESIMS and 2D-NMR (HSQC, HMBC, COSY) experiments and confirmed by comparison of their NMR data with those from the literature. A preliminary molluscicidal test for ethanol, chloroform and n-hexane extracts of leaves of Vitex trifolia against Biomphalaria alexandrina adult snails showed that ethanol extract of leaves with LC50 value 26.42 mg/l (27.92 mg/l – 24.99 mg/l) was more effective than n-hexane extract with LC50 value 35.48 mg/l (43.81 mg/l – 28.72mg/l) and chloroform extract with LC50 value 46.77 mg/l (53.59 mg/l – 43.81 mg/l) after 24 h exposure.

7

Chemical constituents and insecticidal activity of the essential oil from fruits of Foeniculum vulgare Miller on larvae of Khapra beetle (Trogoderma granarium Everts)

72%

Ghanem I., Audech A., Alnaser A. A., Tayoub G.

Herba Polonica

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2013

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tom 59

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nr 4

The objective of current study was to determine the chemical constituents and fumigant toxicity of essential oil isolated by hydro-distillation from dry fruit of bitter fennel (Foeniculum vulgare Miller). The chemical composition of the essential oil was assessed by gas chromatography (GC) and gas chromatography-mass spectrometry (GC-MS). Constituents of the oil were determined as α-pinene (1.6%) and limonene (3.3%), fenchone (27.3%), estragol (3.9%), and (E)-anethole (61.1%). The fumigant toxicity of the essential oil was tested on larvae of the stored product insect Trogoderma granarium Everts. The mortality of larvae was tested at different concentrations ranging from 31.2 to 531.2 μl/l air and at different exposure times (24 and 48 h). Probit analysis showed that LC50 and LC90 following a 48 h-exposure period for essential oil were 38.4 and 84.6 μl/l, respectively. These results showed that the essential oil from F. vulgare may be applicable to the management of populations of stored-product insects.

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Fumigant toxicity of Lavandula stoechas L. oil against three insect pests attacking stored products

58%

Ebadollahi A., Safaralizadeh M. H., Pourmirza A. A.

Journal of Plant Protection Research

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2010

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tom 50

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nr 1

56-60

Plant secondary metabolites play an important role in plant-insect interactions and therefore such compounds may have insecticidal activity against insects. The chemical composition of the essential oil from leaves and flowers of Lavandula stoechas grown in Kashan, Iran, was studied by gas chromatography mass spectrometry (GC-MS). 1,8-Cineole (7.02%), γ-Cadinene (5.33%), T-Cadinol (5.07%), p-Mentha-1-en-8-ol (5.02%) and Caryophyllene (5.01%) were found to be the major constituents of the oil. In fumigant toxicity tests with the essential oil against adults of Tribolium castaneum Herbst, Lasioderma serricorne F. and Rhyzopertha dominica F. at 27±1°C and 60±5% RH, it was observed that L. serricorne (LC50 = 3.835 μl/l) were significantly more susceptible than R. dominica (LC50 = 5.66 μl/l) and T. castaneum (LC50 = 39.685 μl/l) 24 h after treatment. In all cases, considerable differences in mortality of insects to essential oil vapor were observed with different concentrations and times. Mortality increased as the doses of essential oils and exposure period increased and after 72 h fumigations, greatest percentages of mortality were obtained. The findings indicate the strong insecticidal activity of L. stoechas oil and it may be used in grain storage against insects L. serricorne, R. dominica and T. castaneum.

9

Evaluation of changes in the growth and chemical constituents of Anoectochilus formosanus Hayata grown under hydroponic conditions

58%

Nguyen H. C., Nhu T. Q. M., Dung P. V., Hieu N. D., Tuan T. T., Huyen P. X., Truong D.-H.

BioTechnologia. Journal of Biotechnology Computational Biology and Bionanotechnology

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2018

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tom 99

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nr 4

10

The application of citric acid in combination with some micronutrients increases the growth, productivity and a few chemical constituents of maize (Zea Mays) plants

58%

El-Yazal M. A. S.

International Letters of Natural Sciences

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2019

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tom 76

The objective of this investigation was to study the helpful effects of foliar application with antioxidant citric acid in combos with some micronutrients on growth, yield and a few chemical constituents of maize (Zea mays L.) plants. The plants were grown up in clay soil, and foliar sprayed with eleven treatments (0, 0.05, 0.1, 0.15, 0.2, 0.25, 0.3, 0.35, 0.4, 0.45 and 0.5%) of combined fertilizer (citrine) which contains (15% citric acid, 2% Fe, 2% Mn and 2% Zn). The obtained results indicated generally that each one studied vegetative growth parameters (i.e. plant height, stem diameter, number of leaves /plant, dry weight of leaves) similarly as grain yield /fed. and some of their components (i.e. ear length, ear diameter, number of rows/ear, number of grains/row, grain weight/ear, weight of 100 grain and ear weight/plant) and some chemical constituents of leaves (chlorophyll a, b, total caroteniods, anthocyanin, total carbohydrates, total and reducing sugars, total free amino acids, total indoles, nitrogen, phosphorous and potassium) and grain protein %, were accrued with application of the various treatments. The maximum values were obtained from the treatment of 0.3%. On the contrary citrine treatments minimized reducing sugars and free phenol in leaves as compared to the control. The simplest results were obtained by the application of citrine treatment at 0.3%. Hence, it can recommend using citrine fertilizers as foliar application at the speed of 0.3% for improving growth, yield and chemical constituents of maize plants.

11

Biological value of selected cultivars of strawberry fruit [Fragaria ananassa Duch.]

58%

Skupien K.

Folia Horticulturae

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2003

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tom 15

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nr 2

Ograniczanie wyników

The estimation of some constituents contents in minimally processed vegetable salads purchased in the retail network

Mining association rules applied to goethite and haematite abundances in manganese-contaminated soils

Chemical constituents of water hyacinth (Eichhornia crassipes) methanol leaf extract and its effect on selected enzymes of Periplaneta americana

Chemical constituents and ovicidal effects of mahlab, Prunus mahaleb L. kernels oil on cotton leafworm, Spodoptera littoralis (Boisd.) eggs

Effect of pruning time on yielding and fruit quality of several early ripening plum cultivars

Chemical constituents of ethanol extract of leaves and molluscicidal activity of crude extracts from Vitex trifolia Linn.

Chemical constituents and insecticidal activity of the essential oil from fruits of Foeniculum vulgare Miller on larvae of Khapra beetle (Trogoderma granarium Everts)

Fumigant toxicity of Lavandula stoechas L. oil against three insect pests attacking stored products

Evaluation of changes in the growth and chemical constituents of Anoectochilus formosanus Hayata grown under hydroponic conditions

The application of citric acid in combination with some micronutrients increases the growth, productivity and a few chemical constituents of maize (Zea Mays) plants

Biological value of selected cultivars of strawberry fruit [Fragaria ananassa Duch.]