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Uji daya hambat ekstrak daun girang-girang (Leea indica (Burm.f) Merr) terhadap bakteri Morganella morganii FNCC 0122 Made Yuni Pratiwi; Ida Bagus Gede Darmayasa; Sang Ketut Sudirga
Jurnal Biologi Udayana Vol. 29 No. 1 (2025): JURNAL BIOLOGI UDAYANA
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/JBIOUNUD.2025.v29.i01.p08

Abstract

Morganella morganii FNCC 0122 merupakan bakteri yang dapat menyebabkan foodborne disease seperti keracunan histamin. Ekstrak tumbuhan dapat digunakan sebagai bahan biopreservasi alternatif untuk mengendalikan cemaran histamin yang disebabkan oleh M. morganii FNCC 0122. Penelitian ini bertujuan untuk mengetahui daya hambat dan golongan senyawa fitokimia pada daun girang-girang (Leea indica Burm.F) Merr. terhadap M. morganii FNCC 0122. Penelitian ini dilakukan dengan menggunakan metode sumur difusi untuk memperoleh nilai konsentrasi efektif yang mampu menghambat M. morganii. Konsentrasi perlakuan yang diujikan meliputi 2%, 4%, 6%, 8%, 10% (v/v), kontrol positif (Chloramphenicol), dan kontrol negatif (etanol 96%). Hasil penelitian menunjukkan bahwa ekstrak daun girang-girang menghambat pertumbuhan bakteri Morganella morganii FNCC 0122 dengan konsentrasi efektif 10%. Skrining fitokimia menunjukkan adanya golongan senyawa alkaloid, flavonoid, fenol, tanin dan steroid pada esktrak daun girang-girang.
ANTIBACTERIAL ACTIVITY OF Leea indica LEAF EXTRACT AGAINST Escherichia coli ATCC 25922 Iin Indayani; Ida Bagus Gede Darmayasa; Ni Luh Suriani
Meditory : The Journal of Medical Laboratory Vol. 13 No. 2 (2025): Meditory, Volume 13 No. 2 Tahun 2025
Publisher : Jurusan Teknologi Laboratorium Medis, Poltekkes Kemenkes Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33992/meditory.v13i2.4376

Abstract

Background: Leea indica, a large herbaceous plant traditionally used to treat diarrhea, has been studied for its medicinal potential. However, research on the antibacterial activity of its extract against Escherichia coli has not yet been widely reported.Objective: This study aimed to evaluate the antibacterial activity of Leea indica leaf extract against E. coli ATCC 25922 and to identify its phytochemical profile.Methods: Leea indica leaves were extracted using maceration with 96% ethanol as a solvent, followed by evaporation to obtain the crude extract. The antibacterial activity was tested using the well diffusion method at concentrations of 20%, 15%, 10%, and 5%. The inhibition zones were measured to determine antibacterial potency. Qualitative phytochemical screening was also performed to detect the presence of secondary metabolites.Results: The 20% concentration of Leea indica extract produced the largest inhibition zone (27.26 mm), categorized as a very strong antibacterial effect. Phytochemical analysis confirmed the presence of flavonoids, alkaloids, tannins, phenols, steroids, and saponins as secondary metabolites.Conclusions: This study demonstrates that Leea indica leaf extract exhibits strong antibacterial activity against E. coli ATCC 25922 and contains secondary metabolites that may support its traditional use for treating diarrhea.
Co-Authors A.A.S. A. Sukmaningsih Alayna Himawan Alfian Siswanto Ariyanti Ni Kadek Ayu Amelia Bekti Revi Rahayu Cokorda Putra Deny Christine Sidabutar Dwi Dirgantini, Anak Agung Faldy Efriant Pangemanan Fania Agustini Flavia Fionessa Falenda Shanzet I Gede Sugita Artana I Gusti Agung Ayu Ratnawati I Gusti Ayu Laras Pratama Putri I Ketut Gede Rudita I KETUT MUKSIN I Ketut Sundra I Komang Adi Widyastama I Luh Putu Wiwin Astari I Made Dira Swantara I Made Sara Wijana I Made Sugiarta I Nyoman Winyana, I Nyoman I Putu Agus Hendra Wibawa I W BUDIARSA SUYASA I Wayan Kasa I Wayan Sudiarsa I Wayan Sukadana I.P.G. Ardhana Ida Ayu Gde Yadnyawati Ida Bagus Made Suaskara Iin Indayani Ilham . Inna Narayani Joko Wiryatno Junita Hardini Kadek Feby Widyantari Kadek Sudarmi Komang Kartika Indi Swari Komang Krisna Lalu Muhammad Sakti Surya Jagat Lintang Pradhanawati Made Ria Defiani MADE SUSUN PARWANAYONI Made Yuni Pratiwi Martin Joni Meitini Proborini Wahyuni Nadia Khairunnisa Nasha Hadi Rahmadanty NI KADEK WIWIK SINTA DEWI Ni Komang Ayu Kumala Dewi Ni Komang Deny Julyeda Ni LUH ARPIWI Ni Luh Putu Eka Suartini Ni Luh Suriani Ni Made Indah Suandewi Ni Made Susun Parwanayoni Ni Putu Adriani Astiti Ni Putu Indiani Sahaning Karna Ni Putu Sinta Puspa Dewi Ni Putu Yuliatiningsih Ni Wayan Purni wirathi Ni Wayan Sudatri Nyoman Mega Antari Pande Gde Eka Mardiana Pande Gde Sasmita Julyantoro Pande Putu Purwaningsih Prayitna Dewi, Ida Ayu Putu Cindy Arista Putu Eka Sudaryatma Ratu Ayu Ningrat Retno Kawuri Rochmalia Juniarti Putri Sang Ayu Sri Satya Laksmi Utari Sang Ketut Sudirga SANG KETUT SUDIRGA Siti Didah Alawiah Siti Nurlatifah SRI LESTARI Suasthi, I Gusti Ayu Suta Arta Yan Ramona Yulita Salma Lani