scholarly journals The toxicity of bean flour (Phaseolus vulgaris) to stored-product mites (Acari: Acaridida)

2010 ◽  
Vol 42 (No. 4) ◽  
pp. 125-129 ◽  
Author(s):  
J. Hubert ◽  
M. Němcová ◽  
G. Aspaly ◽  
V. Stejskal

Legume proteins were shown to have insecticidal activity against stored-product pests. Grain enriched by bean (<I>Phaseolus vulgaris</I>) flour inhibits the growth of stored-product mites. In this study, we tested the toxicity of bean flour to storage mites under optimal conditions for their population growth (i.e. rearing diet, temperature: 25C and humidity optimum: 85% RH). Bean flour was added&nbsp; to the diet in one of eight concentrations: 0, 0.01, 0.1, 0.5, 1, 2.5, 5, 10%). The population growth of <I>Tyrophagus putrescentiae, Acarus siro </I>and <I>Aleuroglyphus ovatus </I>initiating from a density of 50 mites per 0.2 g of diet was recorded for 21 days. The enrichment of grain with bean flour suppressed the population growth of the tested species. These differed in their sensitivity to bean flour. Population growth was decreased to 50% in comparison to the control (rC<SUB>50</SUB>) by the bean flour concentration of 0.02% in <I>T. putrescentiae, </I>0.04% in<I>&nbsp; A. siro, </I>and by<I> </I>4.87% in <I>A. ovatus. </I>&nbsp;The concentration of 5% bean flour in diets kept populations of <I>A. siro </I>and <I>T. putrescentiae</I><I> </I>at the initial level. The results are discussed in the context of applying bean flour in the integrated control of stored-product mites.

1982 ◽  
Vol 62 (2) ◽  
pp. 351-360 ◽  
Author(s):  
R. N. SINHA ◽  
N. D. G. WHITE

Moisture content-relative humidity (MC-RH) adsorption and desorption curves were determined for triticale (× - Triticosecale Wittmack), cv. Welsh, at 22 °C and 35–100% RH. The effects of various seed moisture contents on free fatty acid level, microfloral growth and germination loss were determined after 5 wk of storage at various RH and 22 °C. Infection of seeds by Penicillium and Aspergillus glaucus group occurred above 80–85% RH and seed germination correspondingly began to decrease. Five common stored-product mites which infested triticale stored at 20 °C and 85% RH were: Acarus siro, A. farris, Aëroglyphus robustus, Lepidoglyphus destructor and Tyrophagus putrescentiae. A. farris and L. destructor also multiplied on wheat cv. Neepawa which was an inferior substrate to triticale for A. farris.


Author(s):  
Н.Т. ШАМКОВА ◽  
А.М. АБДУЛХАМИД

Определено содержание ингибиторов протеолитических ферментов в фасолевой муке, в пюре из зерновой фасоли, сваренной в воде, и в пюре из зерновой фасоли, сваренной после замачивания в воде в молочной сыворотке. Обосновано использование молочной сыворотки в качестве жидкой среды для варки зерновой фасоли после замачивания. Разработана технология полуфабриката в виде фасолевого пюре, предусматривающая замачивание фасоли в воде, варку в молочной сыворотке, грубое измельчение доведенной до готовности фасоли, последующее тонкое измельчение и охлаждение. Установлено, что в фасолевом пюре активность ингибиторов трипсина значительно ниже, чем в муке из фасоли, что делает пюре более предпочтительным полуфабрикатом для производства широкого ассортимента кулинарной продукции. The content of inhibitors of proteolytic enzymes in bean flour, in puree from beans harvested in water and in puree from cereal beans welded in milk whey after soaking in water is determined. The use of whey as a liquid medium for cooking grain beans after soaking is substantiated. The technology of semi-finished product in the form of bean puree, providing for soaking beans in water, cooking in milk whey, coarse grinding of the bean brought to the ready, subsequent fine grinding and cooling is developed. It has been found that the activity of trypsin inhibitors in bean puree is much lower than in bean flour, which makes mashed potatoes a more preferred semi-finished product for the production of a wide range of culinary products.


2010 ◽  
Vol 119 (4) ◽  
pp. 1544-1549 ◽  
Author(s):  
J.A. Gallegos-Infante ◽  
N.E. Rocha-Guzman ◽  
R.F. Gonzalez-Laredo ◽  
L.A. Ochoa-Martínez ◽  
N. Corzo ◽  
...  

1999 ◽  
pp. 154-156
Author(s):  
M.A. Martín-Cabrejas ◽  
E. Herrero ◽  
L. Jaime ◽  
R.M. Esteban ◽  
C. Karanja ◽  
...  

2019 ◽  
Vol 78 (1) ◽  
pp. 49-64
Author(s):  
Guilherme Liberato da Silva ◽  
Isadora Zanatta Esswein ◽  
Daiane Heidrich ◽  
Fabíola Dresch ◽  
Mônica Jachetti Maciel ◽  
...  

2019 ◽  
Vol 24 (6) ◽  
pp. 992-997 ◽  
Author(s):  
Hulya Dizlek ◽  
Mehmet Karagoz ◽  
Farid Faraji ◽  
Ibrahim Cakmak

This study was conducted to determine mite species in dried figs in Aydin, Turkey between August 2014 and November 2016. A total of 141 dried fig samples were taken from producers’ storage, commercial storages and fig processing factories in Buharkent, Germencik, Incirliova, Kocarli, Kosk, Kuyucak, Merkez, Nazilli, Sultanhisar and Yenipazar districts. In addition, 24 dried fig samples were kept in storage for 8 months and the changes in mite species composition and their densities in stored figs were determined. As a result, 8 mite species belonging to 3 orders and 5 families were identified from the dried figs. Acarus siro L., Carpoglyphus lactis (L.), Glycyphagus destructor (Schrank), G. domesticus (De Geer) and Tyrophagus putrescentiae (Schrank) as pest species, and Blattisocius tarsalis (Berlese), B. mali (Oudemans) and Cheyletus eruditus (Schrank) as predatory mite species were found. Out of 141 samples, 133 were infested with mites and the infestation ratio was 94.3%. Tyrophagus putrescentiae was the most common pest species with an infestation rate of 72.3%, followed by C. lactis with 34.8%, A. siro, G. destructor and G. domesticus with 0.7% contamination, respectively. Carpoglyphus lactis was found to have the highest density with 10,488 individuals/kg in contaminated fig samples. Blattisocius tarsalis was the most common predatory mite species with an infestation rate of 77.3%. Blattisocius mali and C. eruditus were found in 9.2% and 4.3% of dried figs, respectively. This study showed that the dried fig samples kept in storage were always vulnerable to contamination with mites. Mite species composition and their densities also fluctuated over time.


2011 ◽  
Vol 40 (No. 1) ◽  
pp. 11-16 ◽  
Author(s):  
Z. Kučerová ◽  
P. Horák

Twenty-one types of seed samples (mainly vegetable and grass seed) were analysed in laboratory and 60% arthropod infestation (14 Acarina, 5 Psocoptera species) was found. The seeds of beet, grass, onion, radish and lettuce were most sensitive to infestation. Acarus siro was a dominant mite pest from all aspects (frequency, abundance and seed diversity infestation), followed by Tyrophagus putrescentiae, Tarsonemus granarius and Lepidoglyphus destructor. Cheyletus eruditus was a dominant predatory mite. Lepinotus patruelis was the most frequent psocid pest. &nbsp;


2014 ◽  
Vol 17 (2) ◽  
pp. 331-337 ◽  
Author(s):  
P.M. Wilkołek ◽  
Z.J.H. Pomorski ◽  
M.P. Szczepanik ◽  
Ł. Adamek ◽  
M. Pluta ◽  
...  

Abstract The present study was designed to asses specific IgE towards environment allergens in 42 healthy horses. Determination of this immunoglobulin in serum serve as diagnostic tools in allergic diseases to improve efficacy of the treatment and proper allergen selection to specific immunotherapy. Serum levels of allergen specific IgE were measured with equine monoclonal antibody, using 15 individual and 5 mix allergens in North European Panel. The study revealed season dependent increased levels of allergen specific IgE in normal horses. It is noteworthy that healthy horses show high percentage of positive reactions, most commonly towards to domestic mites D. farinae (80%), D. pteronyssinus (35.71%) and storage mites T. putrenscentiae (42.86%), Acarus siro (40.48%). These allergens play an important role in equine, canine and feline atopic dermatitis. We also demonstrated high IgE levels in the group of horse specific insect allergens. Tabanus sp. (35.71%), Culicoides sp. (28.57%) and Simulium sp. (26.19%) were the most frequent insect positive reaction allergens. No positive reactions in all groups of allergens were found in winter season, low and merely detectable levels of antibodies have been found relating to D. farianae and T. putrescentiae allergen. We observed elevated mould-IgE levels in horses that live in stables, while outdoor living horses showed very low levels. Amongst all positive reactions we observed only weak and moderate reactions but no strong positive reactions were found. No significant differences were observed between three breeds of horses with the exception of moulds and D. pteronyssinus allergens


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