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"Latar belakang: Temulawak adalah tanaman obat asli Indonesia yang mengandung zat aktif xanthorrhizol dan memiliki efek antifungal. Dengan membentuk biofilm, Candida albicans menjadi virulen dan semakin virulen ketika mencapai fase maturasi. Tujuan: Mengetahui potensi ekstrak etanol temulawak dalam menghambat biofilm C. albicans isolat klinis dan C. albicans ATCC 10231 pada fase maturasi. Metode: Pemaparan ekstrak etanol temulawak berbagai konsentrasi pada biofilm C. albicans dimulai pada 1.5 jam setelah inkubasi dan dilanjutkan selama 48 jam. MTT assay digunakan untuk mengukur persentase viabilitas sel C. albicans pada biofilm yang kemudian dikonversi menjadi persentase inhibisi biofilm oleh ekstrak temulawak. Hasil: Terhadap C. albicans isolat klinis, Kadar Hambat Minimum KHM dan Kadar Bunuh Minimum KBM ekstrak etanol temulawak adalah 15 dan 30, sedangkan terhadap C. albicans ATCC 10231 adalah 20 dan 35. Nilai Kadar Hambat Biofilm Minimum KHBM50 ekstrak etanol temulawak adalah 35 terhadap C. albican isolat klinis dan 40 terhadap C. albicans ATCC 10231. Dibutuhkan konsentrasi ekstrak etanol temulawak yang lebih tinggi untuk menghambat C. albicans ATCC 10231 daripada untuk menghambat C. albicans isolat klinis. Kesimpulan: Baik terhadap C. albicans isolat klinis maupun C. albicans ATCC 10231, ekstrak etanol temulawak berpotensi menghambat biofilm C. albicans fase maturasi.

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Background: Javanese turmeric is an Indonesian medicinal plant which contains xanthorrhizol had been reported to have antifungal effect. By forming biofilms, C. albicans becomes virulent and more virulent as it reaches the maturation phase.

Objective: To investigate the capability of Javanese turmeric ethanol extract in inhibiting the formation of maturation phase C. albicans biofilm both of clinical isolate and ATCC 10231.

Methods: The Exposure of various concentrations of Javanese turmeric ethanol extract to C. albicans biofilm started at 1.5 hours after incubation and continued for 48 hours. MTT assay was used to measure the percentage viability of C. albicans cells on the biofilm which was then converted into the percentage of biofilm inhibition.

Results: Against C. albicans clinical isolate, Minimum Inhibition Concentration MIC and Minimum Fungicidal Concentration MFC of javanese turmeric ethanol extract was 15 and 30 whereas against C. albicans ATCC 10231 was 20 and 35. Minimum Biofilm Inhibition Concentration MBIC50 of javanese turmeric ethanol extract was 35 against C. albicans clinical isolate and 40 against C. albicans ATCC 10231 biofilm. Higher concentration of the extract was required to inhibit C. albicans ATCC 10231 compared to the concentration to inhibit C. albicans clinical isolate.

Conclusion: Both against C. albicans clinical isolat and C. albicans ATCC 10231, javanese turmeric ethanol extract has potential in inhibiting mature phase of C. albicans biofilm."

"Latar belakang: Temulawak yang mengandung xanthorrhizol diketahui memiliki efek antijamur. Xanthorrhizol dilaporkan mampu mengeradikasi biofilm Candida albicans. Tujuan: Menganalisis korelasi antara efek hambat ekstrak etanol temulawak EET dengan perkembangan biofilm C. albicans isolat klinis pada berbagai fase, serta mengamati gambaran mikroskopis biofilm C. albicans. Metode: Uji MTT digunakan untuk menguji viabilitas C. albicans pada biofilm dan dikonversikan persen hambat ekstrak etanol temulawak KHBM50 . Efek EET terhadap gambaran mikroskopis setiap fase perkembangan biofilm C. albicans diamati dengan Scanning Electron Microscopy. Hasil: Nilai Konsentrasi Hambat Biofilm Minimal KHBM50 EET terhadap biofilm C. albicans isolat klinis pada fase awal, menengah, dan maturasi secara berturut-turut adalah 20 , 30 , dan 35 . Gambaran mikroskopis pada setiap fase perkembangan biofilm C. albicans terlihat penurunan jumlah sel dan densitas C. albicans, serta terhambatnya pembentukan filamen dibandingkan dengan kelompok tanpa perlakuan. Kesimpulan: EET mampu menghambat perkembangan fase awal, menengah, dan maturasi biofilm C. albicans isolat klinis. Semakin matur fase perkembangan biofilm, C. albicans akan semakin resisten terhadap ekstrak temulawak. Paparan ekstrak temulawak memengaruhi kemampuan C. albicans isolat klinis dalam membentuk filamen serta menurunkan jumlah sel dan densitas biofilm.

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Background: Javanese turmeric which contains xanthorrhizol is known to have antifungal effect. Xanthorrhizol is reported to be able to eradicate Candida albicans' biofilm formation.

Objective: Analyze the correlation between inhibition concentration of Javanese turmeric ethanol extract JTEE and each development phase of C. albicans' biofilm, and observing microscopic appearance of each phase of C. albicans biofilm.

Method: MTT assay was used to test the viability of C. albicans towards biofilm and converted to Minimum Biofilm Inhibitory Concentration MBIC50 . JTEE' s effect on each phase of microscopic appearance of C. albicans' biofilm is observed by Scanning Electron Microscopy.

Result: MBIC50 of JTEE towards development of clinical isolate of C. albicans' biofilm in the early adhesion and proliferation , intermediate, and maturation phase as follows 20, 30, and 35 respectively. The microscopic appearance on each phase of C. albicans' biofilm development shows decrease in cell number and density, as well as inhibiton of filament formation compared with control group.

Conclusion: JTEE can inhibit the development phases of C. albicans' biofilm. The potency of JTEE to inhibit development of C. albicans' biofilm was decreased along with the maturation of biofilm. The JTEE' s exposure leads to changes of microscopic appearance of C. albicans' biofilm development. "

"Latar Belakang: Kandidiasis Oral adalah infeksi pada rongga mulut yang terutama disebabkan oleh jamur C. albicans. C. albicans dalam bentuk biofilm bersifat virulen. Pembentukan biofilm C. albicans diawali dengan proses adhesi sel diikuti dengan proliferasi dan pembentukan biofilm. Temulawak Curcuma Xanthorrhiza Roxb. merupakan tanaman obat asli Indonesia yang mengandung zat aktif xanthorrhizol yang memiliki efek antijamur. Tujuan: Menganalisis efek hambat ekstrak etanol temulawak terhadap biofilm C. albicans pada fase awal. Metode: Paparan ekstrak etanol temulawak diberikan pada kultur C. albicans isolate klinis dan ATCC 10231 usia 1.5 jam selama 6 jam untuk mencapai fase awal. Viabilitas C. albicans diuji dengan MTT assay. Hasil: KHM Ekstrak etanol temulawak terhadap C. albicans isolat klinis dan ATCC 10231 secara berturut-turut adalah 15 dan 20 . KHBM50 ekstrak etanol temulawak terhadap biofilm C. albicans isolat klinis dan ATCC 10231 pada fase awal secara berturut-turut adalah 20 dan 25. Kesimpulan: Hasil penelitian ini menunjukkan bahwa Ekstrak Etanol Temulawak dapat menghambat biofilm C. albicans pada fase awal.

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Background: Oral Candidiasis is an oral cavity infection caused by C. albicans. C. albicans in the form of biofilm is virulent. C. albicans biofilm formation initially starts with the fungal cell adhesion followed by the proliferation and the formation of biofilm. Javanese Turmeric Curcuma Xanthorrhiza Roxb. is an Indonesian medicinal plant that contains xanthorrhizol as the active substance which has antifungal effects.

Objective: To investigate the inhibitory effect of Javanese turmeric ethanol extract on C. albicans biofilm in the initial phase.

Methods: exposing Javanese Turmeric ethanol extract was given to C. albicans culture aged 1.5 hours for 6 hours to achieve initial phase of biofilm. The viability of C. albicans was assesed by MTT assay.

Result: The MIC Minimum Inhibitory Concentration of Javanese turmeric ethanol extract against C. albicans clinical isolated and ATCC 10231 were 15 and 30 , respectively. The concentration of temulawak ethanol extract which had MBIC50 value on C. albicans clinical isolated and ATCC 10231 in the adhesion phase were 20 and 25, respectively.

Conclusion: The results showed Javanese turmeric ethanol extract could inhibit C. albicans biofilm in initial phase."

"Biofilm C. albicans memiliki matriks ekstraseluler yang mempersulit penetrasi agen antifungal sintetik. Matriks ini diproduksi pada fase filamentasi dan terakumulasi pada fase maturasi. Temulawak merupakan obat herbal yang banyak digunakan di Indonesia dan ekstraknya telah dilaporkan memiliki efek antifungal terhadap C. albicans planktonik karena memiliki senyawa aktif yaitu xanthorrhizol. Penelitian ini dilakukan dengan MTT assay untuk menghitung viabilitas biofilm C. albicans setelah pemaparan dengan ekstrak etanol temulawak secara in vitro. Hasil yang didapatkan menunjukkan ekstrak etanol temulawak memiliki efek antifungal yang setara dengan nystatin terhadap biofilm C. albicans fase filamentasi dan maturasi pada konsentrasi 35%.

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Extracellular matrix in C. albicans biofilm preventing access of synthetic antifungal agents to C. albicans biofilm. This matrix is produced during filamentation phase and accumulated on maturation phase. Java turmeric is a common Indonesian herbal medicine and has been reported to have antifungal effect against planktonic C. albicans for its active component, xanthorrhizol. This research was conducted using MTT assay to count C. albicans biofilm viability after in vitro exposure to Java turmeric ethanol extract. The result showed it has an equal antifungal effect to nystatin against C.albicans biofilm on filamentation and maturation phase in 35% of concentration."

"Pendahuluan: Salah satu faktor virulensi utama yang mempengaruhi perubahan Candida albicans(C. albicans) dari flora komensal menjadi patogen adalah pembentukan biofilm. Pada biofilm fase maturasi, C. albicansmenjadi lebih resisten terhadap agen antifungal. Telah dibuktikan efek inhibisi ekstrak etanol temulawak (Curcuma xanthorrhiza Roxb.) terhadap pertumbuhan biofilm C. albicans. Tujuan: Menganalisis gambaran TEM sel C. albicans ATCC 10231pada biofilm fase maturasi yang terinhibisi ekstrak etanol temulawak (EET). Metode: Penelitian ini dibagi dua kelompok yaitu kelompok perlakuan dan tanpa perlakuan. Sebanyak 100μL suspensi C. albicans ATCC 10231dalam 96-well-plate diinkubasi selama 1.5 jam pada 370C,kemudian diaspirasi dan dibilas menggunakan PBS. Pada kelompok perlakuan dipapar 100μLEET dengan konsentrasi KHBM50(35%), sedangkan kelompok tanpa perlakuan tidak dipapar EET. Kedua kelompok di inkubasi kembali hingga 48 jam, kemudian dipindahkan ke Eppendorf tube untuk difiksasi dalam 2.5% glutaraldehyde dan dilakukan pemeriksaan TEM. Kontrol positif dipapar nystatin oral suspension. Hasil: Pemeriksaan TEM pada kelompok perlakuan, sel C. albicansATCC 10231 pada biofilm fase maturasi yang terpapar ekstrak etanol temulawak terlihat perubahan gambaran ultrastruktur yang berupa perubahan bentuk sel, penebalan dinding sel, pembesaran vakuola, dan iregularitas sitoplasma berikut organel-organel di dalamnya seperti disorganisasi pada nukleus, mitokondria, dan retikulum endoplasma. Sedangkan pada kelompok tanpa perlakuan menunjukan gambaran sel C. albicans ATCC 10231 normal. Kesimpulan: Pemeriksaan TEM dapat menunjukkan perubahan sel C. albicans ATCC 10231 pada biofilm fase maturasi yang terinhibisi ekstrak etanol temulawak.

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Introduction: One of main virulence factor that influence the alteration of Candida albicans (C. albicans) from commensal flora into pathogenic flora is biofilm formation. At the maturation phase, C. albicans ismore resistant to antifungal agent. It has been proven that there is an inhibition effect of Javanese turmeric (Curcuma xanthorrhiza Roxb) on the growth of C. albicans biofilm.

Objective: To analyze the TEM image of C. albicans cell on the maturation phase of biofilm inhibit by Javanese turmeric ethanol extract.

Method: This research divided into two groups, there were treated group and untreated group. A 100μLC. albicans ATCC 10231 suspension on a 96-well-plate incubated for 1.5 hour at 370C, and then aspirated and washed by phosphate buffer saline (PBS). The treated group was exposed to 100μL Javanese turmeric ethanol extract as MBIC50 concentration (35%), while the untreated group was not exposed to Javanese turmeric ethanol extract. Both groups were incubated until 48 h, and then moved into the Eppendorf tube and fixed with glutaraldehyde 2.5% to examine using TEM. The positive control was exposed to nystatin oral suspension.

Result: Compared to the negative control, C. albicans cell on biofilm maturation phase treated by Javanese turmeric extract ethanol extract shows the alteration on the its ultra structure. The alteration showed in shape, the thickness of cell wall, the enlargement of vacuole, and irregularity of cytoplasm include the organelles in it such as disorganization on nucleus, cytoplasm, and endoplasmic reticulum.

Conclusion: TEM examination showed the alteration of C. albicans ATCC 10231 cell on maturation phase biofilm inhibited by Javanese turmeric ethanol extract."

"Salah satu faktor virulensi Candida albicans adalah kemampuannya dalam membentuk biofilm sehingga meningkatkan resistensi terhadap agen antifungal. Fase awal merupakan prasyarat terbentuknya biofilm serta ditandai dengan adhesi dan proliferasi sel C. albicans. Temulawak merupakan tanaman khas Indonesia dan dilaporkan memiliki efek antifungal karena mengandung zat aktif yaitu xanthorrhizol. Penelitian ini dilakukan dengan MTT assay untuk mengukur viabilitas C. albicans pada biofilm setelah pemaparan ekstrak etanol temulawak secara in vitro. Hasil penelitian menunjukkan ekstrak dengan konsentrasi 35% dapat menurunkan viabilitas C. albicans setara dengan nystatin. Ekstrak etanol temulawak terbukti memiliki efek antifungal terhadap C. albicans pada biofilm fase adhesi dan proliferasi.

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Candida albicans has the ability to form biofilm that increase resistance to antifungal agents. Early phase is a prerequisite, characterized by adhesion and proliferation. Java turmeric is an Indonesian medicinal plants and reported to have antifungal effect due to its active component, xanthorrhizol. This study was conducted using MTT assay to measure viability of C. albicans in biofilm after exposure to Java Turmeric ethanol extract.

The result showed extract in 35% concentration can reduce the viability of C. albicans equal to nystatin’s capability. Java Turmeric ethanol extract has antifungal effect against C. albicans in adhesion and proliferation phase of biofilm."

"Latar Belakang: Temulawak (Curcuma xanthorrhiza Roxb.) merupakan salah satu tanaman obat unggul Indonesia yang memiliki potensi untuk menghambat pembentukan biofilm C. albicans. Faktor virulensi yang dapat menyebabkan C. albicans menjadi fungi patogen diantaranya adalah pembentukan biofilm dan sekresi enzim hidrolitik. Fosfolipase merupakan salah satu enzim hidrolitik yang dapat merusak membran sel inang. Tujuan: Menganalisis aktivitas fosfolipase pada biofilm C. albicans ATCC 10231 fase awal, menengah, dan maturasi yang terhambat ekstrak etanol temulawak (Curcuma xanthorrhiza Roxb.). Metode: Nilai Kadar Hambat Biofilm Minimal (KHBM50) C. albicans ditentukan dengan uji MTT-assay. Ekstrak etanol temulawak dengan konsentrasi sesuai KHBM50 dipaparkan pada biofilm fase awal, menengah, dan maturase. Kontrol negative tidak dipaparkan apapun, kontrol positif dipaparkan Nystatin 100.000 IU. Aktivitas fosfolipase biofilm C. albicans dianalisis dengan mengukur proporsi antara diameterzona presipitasi dengan diameter koloni C. albicans pada medium Egg Yolk Agar (EYA). Hasil: Nilai KHBM50 ekstrak etanol temulawak terhadap biofilm C. albicans ATCC 10231 pada fase awal, fase menengah, dan fase maturasi berturut-turut adalah 25%, 30%, dan 35%. Pada kontrol positif, aktivitas fosfolipase biofilm C. albicans fase awal, fase menengah, dan fase maturasi bernilai 1. Aktivitas fosfolipase biofilm C. albicansfase awal, fase menengah, dan fase maturasi yang terhambat ekstrak etanol temulawak berturut-turut 0.84, 0.80, dan 0.83. Pada kontrol negatif, aktivitas enzim fosfolipase biofilm C. albicans fase awal, fase menengah, dan fase maturasi berturut-turut 0.59, 0.57, dan 0.57. Kesimpulan: Terdapat kecenderungan penurunan aktivitas enzim fosfolipase pada biofilm C. albicans yang terhambat > 50% ekstrak etanol temulawak.

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Background: Javanese turmeric (Curcuma xanthorrhiza Roxb.) is one of medical plant from Indonesia that has potency to inhibit biofilm formation of C. albicans. Biofilm formation and hydrolyticenzymes are two among manyvirulence factors of C. albicans. Phospholipaseisone of hydrolyticenzymesthat could degrade the hostcell membrane.

Objective: To observe the activities ofphospholipase in early phase, intermediate phase, and maturation phase of biofilm C. albicans ATCC 10231 that has been inhibited by Javanese turmeric ethanolic extract.

Method: MTT-assay wasused to measure the minimum biofilm inhibitory concentration (MBIC50) of C. albicans ATCC 10231in three phases of C. albicans biofilm. Those concentrations were used to observe phospholipase activities of biofilm in the relevant phases. The negative control were not exposed to anything, while the positive control were exposed to Nystatin 100.000 IU. Phospholipase activities were determined bymeasuring the proportion of precipitation zone diameter and C. albicans colony diameter onan egg yolk-agar medium.

Results: The MBIC50of Javanese turmeric ethanolic extract towards formation of C. albicans biofilm ATCC 10231 in early phase, intermediate phase, and maturation phase were 25%, 30%, and 35%, respectively. Phospholipase activities value in early phase, intermediate phase, and maturation phase of C. albicans biofilm exposed by Nystatin were 1. Phospholipase activities value in early phase, intermediate phase, and maturation phase of C. albicans biofilms exposed by Javanese turmeric ethanolic extract were 0.84, 0.80, and 0.83, respectively. Phospholipase activities value in early phase, intermediate phase, and maturation phase of unexposed C. albicans biofilm were 0.59, 0.57, and 0.57, respectively.

Conclusion: There istendency of decreased phospholipase activity in early phase, intermediate phase, and maturation phase of biofilm C. albicans that has been inhibited by Javanese turmericethanolic extract."

"Latar belakang: Salah satu faktor virulensi C. albicans adalah pembentukan biofilm yang dapat meningkatkan resistensi terhadap agen antijamur. Temulawak merupakan tanaman obat khas Indonesia yang diketahui memiliki efek antijamur karena mengandung zat aktif xanthorrhizol. Tujuan: Mengetahui potensi penggunaan ekstrak etanol temulawak dalam mengeradikasi biofilm C. albicans isolat klinis. Metode: Pemaparan ekstrak etanol temulawak kepada biofilm C. albicans selama 1 jam pada berbagai fase pembentukan biofilm. MTT assay digunakan untuk mengukur persentase eradikasi biofilm. Hasil: Ekstrak etanol temulawak memiliki nilai KHM dan KBM 15 terhadap C. albicans isolat klinis planktonik. Nilai Konsentrasi Eradikasi Biofilm Minimal KEBM50 ekstrak etanol temulawak terhadap biofilm C. albicans isolat klinis pada fase awal, fase menengah, dan fase maturasi adalah 25 , 15 , dan 15. Kesimpulan: Ekstrak etanol temulawak mampu mengeradikasi biofilm C. albicans isolat klinis.

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Background: An ability to form biofilm is one of the C. albicans rsquo s virulence factor that increase resistance towards antifungal agents. Java turmeric is an Indonesian medicinal plant which reported to have antifungal effects due to its active component, xanthorrhizol.

Objective: To measure in vitro potential use of Java turmeric ethanol extract in eradicating C. albicans clinical isolate biofilm.

Method: One hour exposure of Java turmeric ethanol extract to C. albicans biofilm formation phases. MTT assay is used to test the percentage of biofilm eradication.

Result: The Minimum Inhibitory Concentration MIC and Minimum Fungicidal Concentration MFC of Java turmeric ethanol extract towards planktonic C. albicans was 15. The Minimum Biofilm Eradication Concentration MBEC50 in the early phase was 25, intermediate phase 15 and maturation phase 15.

Conclusion: Java turmeric ethanol extract is effective in eradicating clinical isolate of C. albicans biofilm."

"Background: One of the major challenges in developing an antifungal against Candida albicans as a therapeutic strategy for oral candidiasis is its resistance towards antimicrobial agents. Currently, medicinal plants are continuously being developed as a therapeutic agent, including Javanese turmeric (Curcuma xanthorrhiza Roxb.), an Indonesian plant widely used as a traditional medicine. Its main active compound, xanthorrhizol, as well as the Javanese turmeric Ethanol Extract (EET) had been reported to have antifungal properties. However, extract quality as well as cultivation site of a medicinal plant may affect its’ effectivity as a therapeutic agent. Objective: To analyze the influence of Javanese turmeric cultivation site against its’ ethanolic extract effectivity in inhibiting C. albicans biofilms. Methods: 2 Javanese turmeric ethanolic extract were collected from different cultivation sites, which were Bogor, West Java and Malang, East Java. The extracts were tested for inhibitory activity against C. albicans biofilm using OD600, TPC, and MTT assay measurements. Results: There were concentration differences of xanthorrhizol content in between the two extracts. Despite so, both extracts showed insignificant MBIC50 differences at roughly 0,10 µg/mL, while their MBIC90 were measured to be constant at all biofilm development phases, at 0,30 µg/mL. Conclusion: The different cultivation site of Javanese turmeric in Java island does not influence the effectivity of JtET in inhibiting C. albicans biofilm.

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Background: One of the major challenges in developing an antifungal against Candida albicans as a therapeutic strategy for oral candidiasis, an opportunistic oral fungal infection, is its resistance towards antimicrobial agents. Currently, medicinal plants are being developed as a therapeutic agent, including Javanese turmeric (Curcuma xanthorrhiza Roxb.), an Indonesian plant widely used as a traditional medicine. Its main active compound, xanthorrhizol, is known to have antifungal properties. However, extract quality as well as cultivation site of a medicinal plant may affect its’ effectivity as a therapeutic agent. Up until now, there hasn’t been any datas that explain how these factors affect Javanese turmeric ethanolic extract as a C. albicans strategy. Objective: To analyze the effect of Javanese turmeric cultivation site against its’ ethanolic extract ability to inhibit C. albicans biofilms. Methods: 2 Javanese turmeric ethanolic extract were collected from different cultivation sites, which were Bogor, West Java and Malang, East Java. The extracts were tested for inhibitory activity against C. albicans biofilm using OD600, TPC, and MTT assay measurements. Results: There were concentration differences of xanthorrhizol between the extracts. Despite so, both extracts’ MBIC50 differences were insignificant at roughly 0,10 µg/mL, while their MBIC90 were measured to be constant at all biofilm development phases, at 0,30 µg/mL. Conclusion: There were no significant differences between the MBICs of both extracts against C. albicans biofilm. More research needs to be done to confirm the role of other factors such as storage time on their MBIC."

"Pendahuluan: Perubahan sistem pertahanan pejamu atau kondisi rongga mulut dapat menyebabkan infeksi Candida albicans (C. albicans) yang disebut kandidiasis oral. Xanthorrhizol adalah komponen aktif Temulawak (Curcuma xanthorrhiza Roxb.) yang memiliki efek antijamur. Gambar Scanning Electron Microscope (SEM) sel C. albicans yang terpapar xanthorrhizol menunjukkan penonjolan sitoplasma dan adhesi antar sel. Tidak diketahui bagaimana perubahan ultrastruktural pada sel C. albicans. Tujuan: Menggunakan TEM untuk menganalisis perubahan ultrastruktur sel C. albicans pada biofilm fase pematangan pasca-inhibisi dengan Ekstrak Etanol Temulawak (EET). Metode: Biofilm C. albicans ATCC 10231 yang ditumbuhkan pada kawat selama 1,5 jam dihambat dengan 25% EET selama 48 jam. Kelompok kontrol positif tidak diberi nistatin sedangkan kelompok kontrol negatif tidak diberi apa-apa. Sampel difiksasi dengan 2,5% glutaraldehid, didehidrasi dengan etanol, dan dibenamkan dalam resin spurr sebelum diamati dengan TEM. Hasil: Terlihat distorsi dinding sel, membran plasma, dan organel serta invaginasi membran plasma. Kesimpulan: Penghambatan biofilm C. albicans ATCC 10231 oleh 25% EET menyebabkan kerusakan pada ultrastruktur sel C. albicans ATCC 10231.

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Changes of hosts defense system or oral condition causing infection of Candida albicans (C. albicans) is called oral candidiasis. Xanthorrhizol is an active component of javanese turmeric (Curcuma xanthorrhiza Roxb.) which has antifungal effect. C. albicans cells Scanning Electron Microscope (SEM) image exposed to xanthorrhizol showed cytoplasm protrusion and clumping. The ultrastructure changes inside the C. albicans cell is not known yet. Objective: Using TEM to analyse the ultrastructure image of C. albicans ATCC 10231 cells in maturation phase of biofilm inhibited by 25% EET. Methods: C. albicans ATCC 10231 biofilm which had been cultured on wire for 1.5 hours was inhibited by 25% EET. Group of positive control was exposed by nystatin whereas group of negative control was exposed to nothing. Sampel was being fixated with glutaraldehyde 2.5%, dehydrathed by ethanol, and embedded inside spurrs resin before being observed with TEM. Results: Cell wall, plasma membrane, and organelles distortion, along with plasma membrane invagination. Conclusion: C. albicans ATCC 10231 biofilm inhibition with 25% EET caused damages in C. albicans ATCC 10231 cells ultrastructure."