{"id":3076,"date":"2026-01-18T09:02:45","date_gmt":"2026-01-18T09:02:45","guid":{"rendered":"https:\/\/cvsc.upcebu.edu.ph\/?post_type=project&#038;p=3076"},"modified":"2026-02-18T09:03:12","modified_gmt":"2026-02-18T09:03:12","slug":"evaluation-of-antibacterial-activity-ofblack-soldier-fly-hermetia-illucensl-larval-gut-extracts","status":"publish","type":"project","link":"https:\/\/cvsc.upcebu.edu.ph\/index.php\/project\/evaluation-of-antibacterial-activity-ofblack-soldier-fly-hermetia-illucensl-larval-gut-extracts\/","title":{"rendered":"Evaluation of antibacterial activity ofblack soldier fly (Hermetia illucensL.) larval gut extracts"},"content":{"rendered":"<p>[et_pb_section fb_built=&#8221;1&#8243; theme_builder_area=&#8221;post_content&#8221; _builder_version=&#8221;4.27.5&#8243; _module_preset=&#8221;default&#8221;][et_pb_row column_structure=&#8221;1_3,2_3&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; custom_padding=&#8221;40px|||||&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_column type=&#8221;1_3&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_heading title=&#8221;Evaluation of antibacterial activity of black soldier fly (Hermetia illucens L.) larval gut extracts&#8221; _builder_version=&#8221;4.27.5&#8243; _module_preset=&#8221;default&#8221; title_font=&#8221;|700|on||||||&#8221; title_text_color=&#8221;gcid-body-color&#8221; title_font_size=&#8221;41px&#8221; custom_margin=&#8221;|-828px|25px|||&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{%22gcid-body-color%22:%91%22title_text_color%22%93}&#8221; theme_builder_area=&#8221;post_content&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_heading][et_pb_image src=&#8221;http:\/\/cvsc.upcebu.edu.ph\/wp-content\/uploads\/2026\/02\/Maglangit-SciEngg.webp&#8221; title_text=&#8221;Maglangit-SciEngg&#8221; _builder_version=&#8221;4.27.5&#8243; _module_preset=&#8221;default&#8221; hover_enabled=&#8221;0&#8243; box_shadow_style=&#8221;preset2&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; sticky_enabled=&#8221;0&#8243;][\/et_pb_image][\/et_pb_column][et_pb_column type=&#8221;2_3&#8243; _builder_version=&#8221;4.27.4&#8243; _module_preset=&#8221;default&#8221; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221;][et_pb_text _builder_version=&#8221;4.27.5&#8243; _module_preset=&#8221;default&#8221; text_font_size=&#8221;15px&#8221; text_line_height=&#8221;1.1em&#8221; custom_padding=&#8221;118px|||||&#8221; hover_enabled=&#8221;0&#8243; global_colors_info=&#8221;{}&#8221; theme_builder_area=&#8221;post_content&#8221; sticky_enabled=&#8221;0&#8243;]<\/p>\n<p><strong>Lead Researcher(s): <\/strong>Jaymark Orapa, Nephriteri Generale, Avvy Sheen Uy, Danielle Dalman, Mariel Rose Villarubia and Fleurdeliz Maglangit<br \/><strong>Status:<\/strong> Published<\/p>\n<p style=\"text-align: justify;\"><span style=\"font-weight: 400;\"><strong>Abstract\/summary:<\/strong> The larvae of the black soldier fly (BSF), Hermetia illucens L., feed on various organic wastes, such as animal manures and food waste, which are often abundant in pathogenic microorganisms. BSF can thrive in such harsh environments, indicating that their gut microflora may possess a potent immune system that can produce a variety of bioactive metabolites, which may repress the growth of harmful pathogens. Nevertheless, the bioactivity potential of the gut microbiota of BSF larvae (BSFL) remains underinvestigated. In this work, we characterized the gut portions of the BSFL (i.e., foregut, midgut, and hindgut) and evaluated the bioactivity of microbial gut extracts against Escherichia coli and Bacillus subtilis. Ten strains were isolated: three from the foregut (JN1, JN2, JN3), three from the midgut (JA4, JA5, JA6), and four from the hindgut (JB7, JB8, JB9, JB10). All gut isolates showed zones of inhibition (ZOI) against B. subtilis (6.27\u20137.80 mm) and E. coli (6.20\u20137.33 mm), suggesting the presence of broad-spectrum antimicrobial compounds. Based on the 16S RNA sequence similarity, the isolates JN2 and JA4, with the largest ZOIs, are likely new members of the genus Bacillus, while JA4 belongs to the genus Providencia. The results highlight the potential of BSFL gut as a promising source of antimicrobial compounds, contributing to sustainable waste management and advancements in biotechnology.<\/span><\/p>\n<p><b>Keywords:<\/b><\/p>\n<ul class=\"c-article-subject-list\">\n<li class=\"c-article-subject-list__subject\"><span style=\"color: #3366ff;\">BSFL<\/span><\/li>\n<li class=\"c-article-subject-list__subject\"><span style=\"color: #3366ff;\">BSFL gut<\/span><\/li>\n<li class=\"c-article-subject-list__subject\"><span style=\"color: #3366ff;\">gut microbiota<\/span><\/li>\n<li class=\"c-article-subject-list__subject\"><span style=\"color: #3366ff;\">gut extracts<\/span><\/li>\n<li class=\"c-article-subject-list__subject\"><span style=\"color: #3366ff;\">zone of inhibition<\/span><\/li>\n<li class=\"c-article-subject-list__subject\"><span style=\"color: #3366ff;\">antibiotics<\/span><\/li>\n<\/ul>\n<p>[\/et_pb_text][et_pb_button button_text=&#8221;Downloadable PDF&#8221; _builder_version=&#8221;4.27.5&#8243; _module_preset=&#8221;default&#8221; theme_builder_area=&#8221;post_content&#8221; button_url=&#8221;https:\/\/doi.org\/10.54645\/202518SupHMZ-36&#8243; url_new_window=&#8221;on&#8221; custom_button=&#8221;on&#8221; button_text_color=&#8221;#8A1538&#8243; hover_enabled=&#8221;0&#8243; sticky_enabled=&#8221;0&#8243;][\/et_pb_button][\/et_pb_column][\/et_pb_row][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Lead Researcher(s): Jaymark Orapa, Nephriteri Generale, Avvy Sheen Uy, Danielle Dalman, Mariel Rose Villarubia and Fleurdeliz MaglangitStatus: Published Abstract\/summary: The larvae of the black soldier fly (BSF), Hermetia illucens L., feed on various organic wastes, such as animal manures and food waste, which are often abundant in pathogenic microorganisms. BSF can thrive in such harsh [&hellip;]<\/p>\n","protected":false},"author":7,"featured_media":0,"template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"project_category":[37,34],"project_tag":[],"class_list":["post-3076","project","type-project","status-publish","hentry","project_category-journals-books-and-reports","project_category-recent-publications"],"_links":{"self":[{"href":"https:\/\/cvsc.upcebu.edu.ph\/index.php\/wp-json\/wp\/v2\/project\/3076","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/cvsc.upcebu.edu.ph\/index.php\/wp-json\/wp\/v2\/project"}],"about":[{"href":"https:\/\/cvsc.upcebu.edu.ph\/index.php\/wp-json\/wp\/v2\/types\/project"}],"author":[{"embeddable":true,"href":"https:\/\/cvsc.upcebu.edu.ph\/index.php\/wp-json\/wp\/v2\/users\/7"}],"version-history":[{"count":2,"href":"https:\/\/cvsc.upcebu.edu.ph\/index.php\/wp-json\/wp\/v2\/project\/3076\/revisions"}],"predecessor-version":[{"id":3080,"href":"https:\/\/cvsc.upcebu.edu.ph\/index.php\/wp-json\/wp\/v2\/project\/3076\/revisions\/3080"}],"wp:attachment":[{"href":"https:\/\/cvsc.upcebu.edu.ph\/index.php\/wp-json\/wp\/v2\/media?parent=3076"}],"wp:term":[{"taxonomy":"project_category","embeddable":true,"href":"https:\/\/cvsc.upcebu.edu.ph\/index.php\/wp-json\/wp\/v2\/project_category?post=3076"},{"taxonomy":"project_tag","embeddable":true,"href":"https:\/\/cvsc.upcebu.edu.ph\/index.php\/wp-json\/wp\/v2\/project_tag?post=3076"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}