<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Endang Ariyani Setyowati</style></author><author><style face="normal" font="default" size="100%">Alim Isnansetyo</style></author><author><style face="normal" font="default" size="100%">Tjut Sugandawaty Djohan</style></author><author><style face="normal" font="default" size="100%">Raden Wisnu Nurcahyo</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Antimalarial Activity of Microalgae Extracts Based on Inhibition of PfMQO, a Mitochondrial Plasmodium falciparum Enzyme</style></title><secondary-title><style face="normal" font="default" size="100%">Pharmacognosy Journal</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Antimalarial</style></keyword><keyword><style  face="normal" font="default" size="100%">Inhibitory activity</style></keyword><keyword><style  face="normal" font="default" size="100%">Microalgae</style></keyword><keyword><style  face="normal" font="default" size="100%">P falciparum</style></keyword><keyword><style  face="normal" font="default" size="100%">Screening</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2019</style></year><pub-dates><date><style  face="normal" font="default" size="100%">November 2019</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">11</style></volume><pages><style face="normal" font="default" size="100%">1477-1482</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;Malaria is an important global disease that threatened human life. The resistance&lt;em&gt; Plasmodium &lt;/em&gt;sp. to the available medicines encourages the search for new antimalarial substances based on new mechanisms on the inhibition of PfMQO (the mitochondrial&lt;em&gt; Plasmodium falciparum&lt;/em&gt; enzyme). &lt;strong&gt;Objective: &lt;/strong&gt;The purposes of this study was to screen antimalarial substances from microalgae based on the inhibition of PfMQO. &lt;strong&gt;Materials and Methods: &lt;/strong&gt;Five microalgae were extracted by maceration using chloroform pa and ethanol pa. These ten crude extracts obtained were tested for the inhibitory activity against the PfMQO enzyme. &lt;strong&gt;Results:&lt;/strong&gt; The highest inhibitory activity against PfMQO enzyme was chloroform extract of &lt;em&gt;S. costatum&lt;/em&gt; with 91.050% of inhibition and 0.043 μg/mL of IC&lt;sub&gt;50&lt;/sub&gt;. The ethanol extract of &lt;em&gt;S. platensis &lt;/em&gt;showed 91.999% and 5.25 μg/mL of inhibition and IC&lt;sub&gt;50&lt;/sub&gt;, respectively. These results indicated that the two extracts provide high antimalarial activity exceeded a theoretical standard of antimalarial bioactive compounds. &lt;strong&gt;Conclusion: &lt;/strong&gt;Chloroform extract of &lt;em&gt;S. costatum&lt;/em&gt; and ethanol extract of &lt;em&gt;S. platensis &lt;/em&gt;are promising sources of antimalarial compounds based on the inhibition of PfMQO.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">6s</style></issue><work-type><style face="normal" font="default" size="100%">Original Article</style></work-type><section><style face="normal" font="default" size="100%">1477</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;&lt;strong&gt;Endang Ariyani Setyowati&lt;sup&gt;1,2&lt;/sup&gt;, Alim Isnansetyo&lt;sup&gt;3,&lt;/sup&gt;*, Tjut Sugandawaty Djohan&lt;sup&gt;1&lt;/sup&gt;, Raden Wisnu Nurcahyo&lt;sup&gt;4&lt;/sup&gt;, Erwahyuni Endang Prabandari&lt;sup&gt;5&lt;/sup&gt; &lt;/strong&gt;&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;1&lt;/sup&gt;Department of Biology, Faculty of Biology, Universitas Gadjah Mada, Jl. Teknika Selatan, Sekip Utara, Yogyakarta 55281, INDONESIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;2&lt;/sup&gt;Faculty of Biology, Universitas Jenderal Soedirman, INDONESIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;3&lt;/sup&gt;Department of Fisheries, Faculty of Agriculture, Universitas Gadjah Mada, Jl. Flora, Bulaksumur, Yogyakarta, INDONESIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;4&lt;/sup&gt;Departement of Parasitology,, Faculty of Veterinary Medicine, Universitas Gadjah Mada, Jl. Fauna 2, Karangmalang, Yogyakarta 55281, INDONESIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;5&lt;/sup&gt;Biotech Center, Agency for the Assessment and Application of Technology, Jakarta, INDONESIA.&lt;/p&gt;
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