@article{article_633056, title={ANTIBACTERIAL EFFECTS OF PARMELIA SULCATA AND HYPOGYMNIA TUBULOSA ACETONE EXTRACTS AGAINST ISOLATES FROM SOAK LIQUORS}, journal={International Journal of Advances in Engineering and Pure Sciences}, volume={32}, pages={251–257}, year={2020}, DOI={10.7240/jeps.633056}, author={Berber, Didem}, keywords={soak liquor,lichen,Parmelia sulcata,Hypogymnia tubulosa,acetone extract,antibacterial}, abstract={<p class="MsoNormal" style="margin-bottom:.0001pt;line-height:normal;"> <b> <span style="font-size:9pt;font-family:’Times New Roman’, serif;">Abstract </span> </b> </p> <p> <b> </b> </p> <b> </b> <p class="MsoNormal" style="text-align:justify;line-height:normal;"> <span style="font-size:9pt;font-family:’Times New Roman’, serif;">It is well known that there are halophilic
or non-halophilic bacteria in salt, soak liquors, salted and soaked hides/skins
in high numbers in leather industry. These bacteria have several hydrolytic
enzymes which cause irreversible defects on finished leather product. However,
antimicrobial agents are utilized to control bacterial population in soaking
process, these agents have not sufficient efficacy due to inadequate
application of these agents or the presence of antimicrobial-resistant
bacterial strains in soak liquors. In this respect, alternative agents or
strategies may be helpful for controlling bacterial population. For this
purpose, ten isolates were obtained from different soak liquor samples and the
antibacterial effects of acetone extracts of <i>Parmelia sulcata </i> and <i>Hypogymnia
tubulosa </i> lichen species were evaluated on these isolates. Colony
morphologies on agar plates, Gram staining, oxidase and catalase tests,
bacterial growth on several selective media of these isolates were
investigated. </span> <span lang="tr" style="font-size:9pt;font-family:’Times New Roman’, serif;color:rgb(28,29,30);" xml:lang="tr">They were Gram-positive,
rod-shaped and catalase positive. While bacterial growth was observed on
Manntiol Salt Agar, Baird Parker agar, 5% sheep blood agar in most isolates, no
growth was detected on Eosine-methylene blue agar and Cetrimide agar.
Additionally, a </span> <span style="font-size:9pt;font-family:’Times New Roman’, serif;">ntibacterial activities for acetone
extracts of <i>Parmelia sulcata </i> and <i>Hypogymnia tubulosa </i>against these
isolates were tested at certain concentrations of <i> </i> </span> <span lang="tr" style="font-size:9pt;font-family:’Times New Roman’, serif;color:#131413;" xml:lang="tr">240, 120, 60 and 30 µg/ml </span> <span lang="en" style="font-size:9pt;font-family:’Times New Roman’, serif;color:#212121;" xml:lang="en">. </span> <i> <span style="font-size:9pt;font-family:’Times New Roman’, serif;">Hypogymnia tubulosa </span> </i> <span style="font-size:9pt;font-family:’Times New Roman’, serif;">extracts <i> </i>were found to be more successful in
comparison to the extracts of <i>Parmelia
sulcata </i>on tested isolates. T </span> <span lang="en" style="font-size:9pt;font-family:’Times New Roman’, serif;color:rgb(28,29,30);" xml:lang="en">hese tested lichen species can be used
to control the population of bacteria in the soaking process and also to
prevent potential defects on the skin that may be seen in subsequent tanning
processes due to the development of these bacteria. </span> <span lang="tr" style="font-size:9pt;font-family:’Times New Roman’, serif;color:rgb(28,29,30);" xml:lang="tr"> </span> </p> <p> </p>}, number={3}, publisher={Marmara University}