scholarly journals Inhibitory effects of volatile amines emitted by bacterial culture on the growth of fungi.

1989 ◽  
Vol 4 (2) ◽  
pp. 59-65
Author(s):  
TADAYOSHI TANAKA ◽  
ZENYA SHOJI
Keyword(s):  
Bacterial Culture ◽  
Inhibitory Effects ◽  
Growth Of Fungi ◽  
Volatile Amines

Oxidation of manganous salts of manganese by soil fungi

1972 ◽  
Vol 18 (6) ◽  
pp. 793-799 ◽  
Author(s):  
M. I. Timonin ◽  
W. I. Illman ◽  
T. Hartgerink
Keyword(s):  
Hydrochloric Acid ◽  
Microscopic Examination ◽  
Soil Fungi ◽  
Ammonium Acetate ◽  
Bacterial Culture ◽  
Microbiological Analysis ◽  
Tundra Soils ◽  
Arctic Soil ◽  
Sulfate Medium ◽  
Growth Of Fungi

The microbiological analysis of soils from Ontario, Yukon, and Northwest Territories showed the presence of manganese-oxidizing bacteria, Actinomycetes, and fungi. Bacteria and Actinomycetes were predominant in boreal and tundra soils whereas fungi were predominant in the Ontario samples. The 18 species of fungi studied were able to oxidize 10 different compounds of manganese including a chelated form as well as an organic Mn2+ complex. Coniothyrium fuckelii, Periconia sp., P. circinata, P. macrospinosa, Phoma sp., and Sporothrix sp. oxidized all 10 Mn2+ compounds tested. One bacterial culture isolated from Arctic soil was able to oxidize only Mn2+ acetate and tartrate salts.The addition to Mn2+ sulfate medium of either calcium salts of several organic acids or various carbohydrates affected the growth of fungi as well as the nature of the end product of Mn2+ oxidation. Thus, the manganic granules produced by Cephalosporium sp. in the medium in the presence of glucose or starch were resistant to solubilization, dissolving only after 6 h in 1 N ammonium acetate (pH 7.0) containing 0.2% of hydroquinone. Granules produced by P. circinata in the presence of cellulose were insoluble in this solvent. On dissolution of the granules with 30% hydrochloric acid, the residue did not show the presence of bacteria under microscopic examination.

scholarly journals Paenibacillus bacteria as a biological factor to control Fusarium fungi and mycotoxins in model studies

2021 ◽  
Vol 61 (4) ◽  
pp. 338-345
Keyword(s):  
Bacterial Culture ◽  
Fusarium Culmorum ◽  
Biological Factor ◽  
Cereal Crops ◽  
Model Studies ◽  
Chemical Treatments ◽  
Rice Grains ◽  
Bacterial Cultures ◽  
Growth Of Fungi ◽  
Fusarium Fungi

Various types of microorganisms are commonly used to control toxinogenic fungi in cereal crops and constitute an important element of integrated pest management, limiting the use of chemical treatments. The aim of the study was to evaluate the potential of Paenibacillus bacteria for the growth inhibition of Fusarium fungi and mycotoxins in a model studies on rice grains. The activity of the studied strains in inhibiting the growth of fungi and reducing the level of mycotoxins was determined by chromatographic (HPLC) analysis of the content of ergosterol (ERG), zearalenone (ZEA) and deoxynivalenol (DON) in rice grains after their inoculation with bacterial cultures and infection by Fusarium graminearum and Fusarium culmorum. Based on the obtained results it can be concluded that the studied strains of bacteria effectively inhibited the growth of fungi of the genus Fusarium and, in individual variants, reduced the levels of ZEA and DON in rice grains. The activity of the tested bacteria in the analyzed range depended on the bacterial strain, the type of fungus and the amount of bacterial culture used to inoculate rice.

Inhibitory effects of bioaccessible anthocyanins and procyanidins from apple, red grape, cinnamon on α-amylase, α-glucosidase and lipase

2020 ◽  
pp. 1-9
Author(s):  
Pınar Ercan ◽  
Sedef Nehir El
Keyword(s):  
Inhibitory Activity ◽  
Digestive Enzymes ◽  
Positive Control ◽  
Anthocyanin Content ◽  
Inhibitory Effects ◽  
Total Anthocyanin ◽  
Total Anthocyanin Content ◽  
Before And After ◽  
Red Grape

Abstract. The goals of this study were to determine and evaluate the bioaccessibility of total anthocyanin and procyanidin in apple (Amasya, Malus communis), red grape (Papazkarası, Vitis vinifera) and cinnamon (Cassia, Cinnamomum) using an in vitro static digestion system based on human gastrointestinal physiologically relevant conditions. Also, in vitro inhibitory effects of these foods on lipid (lipase) and carbohydrate digestive enzymes (α-amylase and α-glucosidase) were performed with before and after digested samples using acarbose and methylumbelliferyl oleate (4MUO) as the positive control. While the highest total anthocyanin content was found in red grape (164 ± 2.51 mg/100 g), the highest procyanidin content was found in cinnamon (6432 ± 177.31 mg/100 g) (p < 0.05). The anthocyanin bioaccessibilities were found as 10.2 ± 1%, 8.23 ± 0.64%, and 8.73 ± 0.70% in apple, red grape, and cinnamon, respectively. The procyanidin bioaccessibilities of apple, red grape, and cinnamon were found as 17.57 ± 0.71%, 14.08 ± 0.74% and 18.75 ± 1.49%, respectively. The analyzed apple, red grape and cinnamon showed the inhibitory activity against α-glucosidase (IC50 544 ± 21.94, 445 ± 15.67, 1592 ± 17.58 μg/mL, respectively), α-amylase (IC50 38.4 ± 7.26, 56.1 ± 3.60, 3.54 ± 0.86 μg/mL, respectively), and lipase (IC50 52.7 ± 2.05, 581 ± 54.14, 49.6 ± 2.72 μg/mL), respectively. According to our results apple, red grape and cinnamon have potential to inhibit of lipase, α-amylase and α-glucosidase digestive enzymes.

Inhibitory Effects of Transposed Letter Neighbours During Silent Sentence Reading

2014 ◽  
Author(s):  
Ascension Pagan ◽  
Hazel Blythe ◽  
Kevin Paterson ◽  
Simon Liversedge
Keyword(s):  
Inhibitory Effects ◽  
Sentence Reading
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