scholarly journals Inoculation of microorganisms to enhance biodegradation of phenolic compounds in industrial wastewater: Isolation and identification of three-indigenous bacterial strains.

1996 ◽  
Vol 42 (3) ◽  
pp. 249-256 ◽  
Author(s):  
BAQAR R. ZAIDI ◽  
SYED H. IMAM
Keyword(s):  
Phenolic Compounds ◽  
Industrial Wastewater ◽  
Bacterial Strains ◽  
Isolation And Identification

Isolation and identification of IAA producing endosymbiotic bacteria from Gracillaria corticata (J. Agardh)

2016 ◽  
Vol 5 (12) ◽  
pp. 5179
Author(s):  
Ilahi Shaik* ◽  
P. Janakiram ◽  
Sujatha L. ◽  
Sushma Chandra
Keyword(s):  
Acetic Acid ◽  
Culture Filtrate ◽  
Indole Acetic Acid ◽  
Shoot Growth ◽  
High Salinity ◽  
Saline Soils ◽  
Bacterial Strains ◽  
Isolation And Identification ◽  
Endosymbiotic Bacteria ◽  
Root And Shoot Growth

Indole acetic acid is a natural phytohormone which influence the root and shoot growth of the plants. Six (GM1-GM6) endosymbiotic bacteria are isolated from Gracilaria corticata and screened for the production of IAA out of six, three bacterial strains GM3, GM5 and GM6 produced significant amount of IAA 102.4 µg/ml 89.40 µg/ml 109.43 µg/ml respectively. Presence of IAA in culture filtrate of the above strains is further analyzed and confirmed by TLC. As these bacterial strains, able to tolerate the high salinity these can be effectively used as PGR to increase the crop yield in saline soils.

Isolation and Identification of Bacterial Strains from Decomposing Hazelnut Husk

2015 ◽  
Vol 23 (3) ◽  
pp. 174-184 ◽  
Author(s):  
Rıdvan Kızılkaya ◽  
Nevzat Sahin ◽  
Demet Tatar ◽  
Aysel Veyisoglu ◽  
Tayfun Askın ◽  
...  
Keyword(s):  
Bacterial Strains ◽  
Isolation And Identification ◽  
Hazelnut Husk

Aktywność przeciwutleniająca i przeciwbakteryjna miodu, propolisu oraz pyłku kwiatowego

2020 ◽  
Vol 21 (3) ◽  
Author(s):  
Magdalena Woźniak ◽  
Lucyna Mrówczyńska ◽  
Anna Sip ◽  
Marta Babicka ◽  
Tomasz Rogoziński ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Pathogenic Bacteria ◽  
Radical Scavenging Activity ◽  
Colorimetric Method ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Total Content ◽  
Diffusion Method ◽  
Bacterial Strains

Introduction. Honey, propolis and pollen belong to bee products that have beneficial biological properties. These products exhibit e.g. antibacterial, antifungal and antioxidant properties. Due to biological activity and natural origin, bee products are used, e.g. in the food industry, cosmetology and pharmacy. Aim. The aim of the study was to compare the antioxidant and antibacterial activity of honey, propolis and pollen from an apiary located in Wielkopolska Province. Material and methods. Honey, propolis and pollen used in this study came from the same apiary located in Wielkopolska Province. The antioxidant potential of bee products was evaluated applying DPPH· free radical scavenging activity assay. The antimicrobial activity of the tested bee products was determined by the point-diffusion method against 13 strains of pathogenic and potentially pathogenic bacteria. In addition, the total content of phenolic compounds in honey, propolis and pollen was determined by the colorimetric method. Results. Propolis exhibited higher antioxidant activity, in comparison to honey and pollen. The antiradical activity of propolis was equal to 80% approx. activity of Trolox, the standard antioxidant. Among tested bee products, propolis was characterized by the highest total phenols content. In addition, honey, propolis and pollen showed antagonistic activity against tested bacterial strains. Conclusions. The obtained results indicate that among the tested bee products of native origin, i.e. honey, propolis and pollen, propolis characterized by the highest antioxidant activity and the total content of phenolic compounds. In addition, all bee products showed bactericidal activity against the tested bacterial strains.

Antimicrobial effects of the phenolic compounds of Mentha piperita L on Streptococcus thermophilus and Lactobacillus bulgaricus and impacts on the quality of an alicament steamed yoghurt

2022 ◽  
Vol 11 (6) ◽  
pp. 646-666
Author(s):  
Ouiza Ait Chabane ◽  
Djamal Ait Saada ◽  
Sara Bensoula ◽  
Mouna Moulay ◽  
Ismahene Ghomri ◽  
...  
Keyword(s):  
Phenolic Compounds ◽  
Streptococcus Thermophilus ◽  
Fermented Milk ◽  
Inhibitory Effect ◽  
Lactobacillus Bulgaricus ◽  
Mentha Piperita ◽  
Total Phenolic ◽  
Bacterial Strains ◽  
Hydroethanolic Extract

This study contributes to the evaluation of the antibacterial effect of hy-droethanolic extract of peppermint (Mentha piperita L.) rich in phenolic compounds on the growth of reference bacterial strains Streptococcus ther-mophilus (ATCC19258) and Lactobacillus bulgaricus (ATCC11842) as well as the consequences of its addition at a dose of 6% on the quality of a steamed yoghurt. The phenolic compounds of peppermint collected in Algeria were extracted from the ground leaves of the plant in a hydroethanolic solution. The antimicrobial activity of peppermint extract and the quality of yoghurt were assessed by the following measures: bacterial growth test, disc diffu-sion test, minimum inhibitory concentration (MIC), minimum bactericidal concentration (MBC), pH, acidity, viscosity and the organoleptic tests (taste, odor, color and freshness). The results revealed that hydroethanolic extract of M. piperita L. had 25 mg GAE/ml of extract of total phenolic compound and a content of 8.28 mg QE/ml of extract of flavonoids. This extract had a bactericidal against S. thermophilus and a bacteriostatic inhibitory effect against L. bulgaricus. The addition of phenolic compounds of M. piperita L. at 154.02 mg GAE/100ml significantly reduced (p<0.05) acidity, viscosity, and the germ increase of S. thermophilus and L. bulgaricus in steamed yogurt prepared with 6% of hydroethanolic extract of the studied plant compared to the control. However, the fermented milk treated with the 6% of pepper-mint extract was very well appreciated by the tasting jury, just like the yo-ghurt control.

Plant-endophyte synergism in constructed wetlands enhances the remediation of tannery effluent

2018 ◽  
Vol 77 (5) ◽  
pp. 1262-1270 ◽  
Author(s):  
Sobia Ashraf ◽  
Muhammad Afzal ◽  
Khadeeja Rehman ◽  
Muhammad Naveed ◽  
Zahir Ahmad Zahir
Keyword(s):  
Industrial Wastewater ◽  
Bacterial Population ◽  
Ecological Engineering ◽  
Tannery Effluent ◽  
Inorganic Contaminants ◽  
Bacterial Strains ◽  
Severe Damage ◽  
Similar Reduction ◽  
Combined Action ◽  
Brachiaria Mutica

Abstract Liquid effluent produced from tanning industries is loaded with organic and inorganic contaminants, particularly heavy metals, which may cause severe damage to the ecosystem. Constructed wetland (CW) is a promising product of the research in the field of ecological engineering which helps to overcome aquatic pollution. This investigation aims to develop a plant–endophyte synergism in CW for the efficient remediation of tannery effluent. In a vertical flow CW, Brachiaria mutica was vegetated and augmented with three endophytic bacterial strains. Results showed a reduction of 82% in COD, 94% in BOD5, and 95% in Cr by plant–endophyte synergism in CWs and it was significantly higher than the use of plants alone. Similarly, nutrients (N and P), lipids, ion content, SO42−, and Cl− showed similar reduction by the combined action of endophytes and B. mutica in CWs. The endophytes inoculation enhanced bacterial population in different compartments of the plants vegetated in CWs and the maximum was observed in the roots. This study revealed that plant–endophyte synergism in CWs can enhance the remediation of industrial wastewater.

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