<?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%">Yesi Desmiaty</style></author><author><style face="normal" font="default" size="100%">Fadlina Chany Saputri</style></author><author><style face="normal" font="default" size="100%">Muhammad Hanafi</style></author><author><style face="normal" font="default" size="100%">Rini Prastiwi</style></author><author><style face="normal" font="default" size="100%">Berna Elya</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Anti-Elastase, Anti-Tyrosinase and Anti-Oxidant of Rubus Fraxinifolius Stem Methanolic Extract</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%">Anti-Elastase</style></keyword><keyword><style  face="normal" font="default" size="100%">Anti-tyrosinase</style></keyword><keyword><style  face="normal" font="default" size="100%">Antioxidant</style></keyword><keyword><style  face="normal" font="default" size="100%">Rubus fraxinifolius stem</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2020</style></year><pub-dates><date><style  face="normal" font="default" size="100%">March 2020</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">12</style></volume><pages><style face="normal" font="default" size="100%">271-275</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;&lt;strong&gt;Introduction:&lt;/strong&gt; Some Rubus were reported had anti-skin aging activity. &lt;em&gt;Rubus fraxinifolius &lt;/em&gt;was one of Rubus genus which lives in Indonesian highland.&lt;strong&gt; Objective: &lt;/strong&gt;This study was to examine elastase, tyrosinase, and oxidant inhibitory activity of &lt;em&gt;R. fraxinifolius &lt;/em&gt;stem (RFS) extract. &lt;strong&gt;Methods: &lt;/strong&gt;Extraction was done by a Soxhlet apparatus using methanol as solvent. Elastase inhibition activity was determined, which based on the formation of p-nitroaniline. Tyrosinase inhibition activity evaluated based on inhibition of mushroom tyrosinase by the sample with L-DOPA as substrate. The activity of antioxidant was determined using the DPPH radical scavenger method. LC-MS was used for prediction of naturally occurring phytochemicals. &lt;strong&gt;Results: &lt;/strong&gt;The RFS extract yield was 9.03 %. The RFS extract revealed inhibition activity against elastase and tyrosinase with IC&lt;sub&gt;50&lt;/sub&gt; 128.85 ppm, and 155.19 ppm, respectively. DPPH radical scavenging activity gave IC&lt;sub&gt;50&lt;/sub&gt; 63.04 ppm. Total phenolic content of the extract was 387.99+3.21 mg GAE/g extract. The LC-MS analysis showed the presence of at least 13 different organic compounds in RFS extract, which might contribute to the bioactivity. &lt;strong&gt;Conclusion: &lt;/strong&gt;Therefore, this experiment further proved that RFS extract might be useful as a natural product ingredient of anti-photoaging skincare products because of its ability to inhibit elastase, tyrosinase, and as an antioxidant.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">2</style></issue><work-type><style face="normal" font="default" size="100%">Original Article</style></work-type><section><style face="normal" font="default" size="100%">271</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p class=&quot;rtejustify&quot;&gt;&lt;strong&gt;Yesi Desmiaty&lt;sup&gt;1,2&lt;/sup&gt;, Fadlina Chany Saputri&lt;sup&gt;1&lt;/sup&gt;, Muhammad Hanafi&lt;sup&gt;2,3&lt;/sup&gt;, Rini Prastiwi&lt;sup&gt;4&lt;/sup&gt;, Berna Elya&lt;sup&gt;1,&lt;/sup&gt;*&lt;/strong&gt;&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;1&lt;/sup&gt;Faculty of Pharmacy, Universitas Indonesia, Depok, 16424, INDONESIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;2&lt;/sup&gt;Faculty of Pharmacy, Pancasila Univercity, Jakarta, 12640, INDONESIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;3&lt;/sup&gt;Chemistry Research Centre, Indonesian Institute of Sciences (LIPI), PUSPIPTEK Serpong, 15314, INDONESIA.&lt;/p&gt;

&lt;p class=&quot;rtejustify&quot;&gt;&lt;sup&gt;4&lt;/sup&gt;Faculty of Pharmacy, Universitas Muhammadiyah Prof. Dr Hamka, Jakarta, INDONESIA.&lt;/p&gt;
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