scholarly journals Influence of Synthetic Flavorings on the Migration Activity of Tribolium confusum and Sitophilus granarius

2021 ◽  
Vol 40 (2) ◽  
pp. 163-177
Author(s):  
Oleksii Titov ◽  
Viktor Brygadyrenko
Keyword(s):  
Benzoic Acid ◽  
Stearic Acid ◽  
Formic Acid ◽  
Benzyl Alcohol ◽  
Kojic Acid ◽  
Isoamyl Alcohol ◽  
Tribolium Confusum ◽  
Sitophilus Granarius ◽  
Migratory Activity ◽  
Phenethyl Alcohol

Abstract Flavorings and volatile biologically active substances, used by humans for various purposes, may potentially have fumigating, repellent, or attractive effects on various species of anthropod storage pests. Tribolium confusum Jacquelin du Val, 1863 (Tenebrionidae) and Sitophilus granarius (Linnaeus, 1758) (Curculionidae) are the two most abundant pests of grain and grain products; the damage they cause to stored products of horticulture is 5–20% of the total yield of grain crops. In the experiment, we video-recorded migratory activity of beetles and evaluated it according to standard time periods (10, 20, 30, 60, and 120 seconds after the start of the experiment). No reliable influence of the 15 tested flavoring substances (benzyl alcohol, benzoic acid, toluene, hydroquinone, phenethyl alcohol, pinene, methylparaben, kojic acid, formic acid, isoamyl alcohol, tartaric acid, glycine, succinic acid, stearic acid, and ethylenediaminetetraacetic acid) on moving activity of Tribolium confusum was found. Exposure to benzyl alcohol brought a reliable decrease in locomotor activity of Sitophilus granarius (it exerted an attractant effect on imagoes as compared with the variant of the experiment without aromatic substances): 6.09 times more imagoes of S. granarius remained at a minimal distance from the aroma source than in the control, 6.07 more while exposed to hydroquinone, 5.50 to phenethyl alcohol, 4.50 to glycine, 3.44 to EDTA, 3.30 to toluene, 3.18 to methylparaben, 2.84 to succinic acid, 2.65 to benzoic acid, and 2.15 more when exposed to formic acid compared with the control variant of the experiment. Other surveyed flavoring substances (benzyl alcohol, pinene, kojic acid, isoamyl alcohol, tartaric acid, and stearic acid) had no significant effect on migratory activity of imagoes of S. granarius. The results allow us to recommend benzyl alcohol, hydroquinone, phenethyl alcohol, and glycine as potential luring substances or components of multicomponent flavoring mixtures during the assessment of the number of S. granarius in grain storage and processing facilities.

scholarly journals The impact of certain flavourings and preservatives on the survivability of eggs of Ascaris suum and Trichuris suis

2020 ◽  
Vol 11 (2) ◽  
pp. 344-348
Author(s):  
O. O. Boyko ◽  
V. V. Brygadyrenko
Keyword(s):  
Benzoic Acid ◽  
Formic Acid ◽  
Negative Impact ◽  
Ascaris Suum ◽  
Food Additives ◽  
Antibacterial Properties ◽  
Parasitic Nematodes ◽  
Trichuris Suis ◽  
The Impact ◽  
Eggs And Larvae

The article describes a laboratory study of nematocidal properties of flavourings with antibacterial effect against Ascaris suum (Goeze, 1782) and Trichuris suis Schrank, 1788. In the experiments, eight concentrations of food additives with antibacterial properties were used: cinnamaldehyde, benzoic acid, formic acid, linalool, citral, β-ionone. Minimum LC50 value for eggs of A. suum was observed while using cinnamaldehyde and benzoic acid – 1.62 ± 0.37% and 1.69 ± 0.14%, and for eggs of T. suis – 0.57 ± 0.03% and 1.80 ± 0.11% respectively. The lowest influence on the development of eggs of nematodes of pigs’ A. suum and T. suis was exerted by formic acid, linalool, citral and β-ionone. In eggs of A. suum and T. suis, larvae formed in 21 and 50 days even during exposure to 3% emulsions of these substances. The strongest negative impact on the eggs of parasitic nematodes was displayed by cinnamaldehyde flavouring. Further study on nematocidal properties of flavourings, as well as their mixtures, would contribute to the development of preparations which would have a strong effect on eggs and larvae of nematodes of animals and humans.

Spiracular Structure and Water Loss from Tribolium confusum Jacq. and Sitophilus granarius (L.) under Reduced Pressures

1963 ◽  
Vol 95 (4) ◽  
pp. 352-357 ◽  
Author(s):  
J. Sharplin ◽  
H. J. Bhambhani
Keyword(s):  
Water Loss ◽  
Tribolium Confusum ◽  
The Body ◽  
Sitophilus Granarius ◽  
Reduced Pressure ◽  
Low Pressures ◽  
Anomalous Water ◽  
Reduced Pressures

AbstractThe structure and position of the spiracles in Sitophilus granarius and Tribolium confusum adults was studied. On the basis of this an attempt was made to explain the differences in water loss from these two species under reduced pressure. It was concluded that the spiracular structure combined with the inflation of the body under very low pressures, can account for the apparently anomalous water loss results.

Electrocatalytic Oxidation of Benzyl Alcohol and 1-Phenethyl Alcohol by a Decahydroquinolinyl-N-oxyl Radical

Heterocycles ◽  
1999 ◽  
Vol 50 (1) ◽  
pp. 79 ◽  
Author(s):  
Yoshitomo Kashiwagi ◽  
Futoshi Kurashima ◽  
Chikara Kikuchi ◽  
Jun-ichi Anzai ◽  
Tetsuo Osa
Keyword(s):  
Benzyl Alcohol ◽  
Electrocatalytic Oxidation ◽  
Phenethyl Alcohol ◽  
Oxidation Of Benzyl Alcohol

Interferences with potentiometry of CO2 in the Ektachem 400 Analyzer.

1984 ◽  
Vol 30 (4) ◽  
pp. 562-565 ◽  
Author(s):  
M Steelman ◽  
C H Smith ◽  
A Menon ◽  
B T Thach ◽  
R E Hillman ◽  
...  
Keyword(s):  
Intensive Care Unit ◽  
Fatty Acids ◽  
Intensive Care ◽  
Benzoic Acid ◽  
Benzyl Alcohol ◽  
Blood Gas ◽  
Keto Acids ◽  
Gas Measurements ◽  
Toxic Concentrations ◽  
Saline Solutions

Abstract We have investigated the Kodak Ektachem 400 Analyzer procedure for CO2 for interferences from benzyl alcohol, benzoic acid, and several compounds structurally similar to benzoic acid. Benzoic acid in plasma, at concentrations found in neonates intoxicated with benzyl alcohol, caused a large increase in the results for CO2, as did substantially above-normal concentrations of certain fatty acids and keto-acids, and toxic concentrations of aspirin. We observed a correlation between increasing benzoic acid concentrations (up to 17 mmol/L) and falsely increasing CO2 values (greater than 47 mmol/L) obtained with the Ektachem Analyzer for samples from a neonate in the intensive-care unit, who was receiving benzyl alcohol-preserved saline solutions. Although the Ektachem CO2 procedure is simple and rapid, and in most cases accurate, questionable results are occasionally encountered, as indicated by a low anion gap or a measured CO2 exceeding that calculated from blood gas measurements. Such results require the use of another method for verification.

Deterrent activity of hops flavonoids and their derivatives against stored product pests

2017 ◽  
Vol 107 (5) ◽  
pp. 592-597 ◽  
Author(s):  
J. Jackowski ◽  
J. Popłoński ◽  
K. Twardowska ◽  
J. Magiera-Dulewicz ◽  
M. Hurej ◽  
...  
Keyword(s):  
Model Compound ◽  
Tribolium Confusum ◽  
Sitophilus Granarius ◽  
Antifeedant Activity ◽  
Trogoderma Granarium ◽  
Stored Product Pests ◽  
Deterrent Activity

AbstractFive flavonoids from hops, two of their derivatives, along with naringenin used as a model compound, were tested for their antifeedant activity against three coleopteran stored product pests: Sitophilus granarius L., Tribolium confusum Duv. and Trogoderma granarium Everts. The introduction, into the tested flavonoid molecules, of additional structural fragments such as prenyl or dimethylpyran moiety, is proposed to significantly alter the deterrent activity of the compounds. The prenyl moiety in flavonoids increased the deterrent activity of these compounds in all three of the grain feeding species used in the tests. It is also concluded that the introduction of dimethylpyran moiety to the flavonoid structure increases its deterrent activity in S. granarius and T. confusum, but in one of the test insects, T. granarium, an increased feeding was observed in response to the introduction of dimethylpyran moiety to the flavonoid structure.

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