The effectiveness of cinnamon powder and cinnamon leaf extract to prevent Aeromonas hydrophila infection on striped catfish Pangasianodon hypophthalamus

Striped catfish Pangasianodon hypophthalamus is one of the intensive cultured commodities. Disease outbreak becomes inevitable to prevent in a fish culture. One of the most frequent disease occurred in striped catfish is the motile aeromonas septicemia (MAS) disease caused by Aeromonas hydrophila. This study aimed to evaluate the effectiveness of 1% dietary cinnamon powder and 0.5% dietary cinnamon leaf extract on the immune response of striped catfish challenged with A. hydrophila. Striped catfish used in this study sizing of 5.80 ± 0.21 g. This study contained two phases, namely in vitro and in vivo tests. In vitro test contained inhibition zone and antibacterial tests, which demonstrates that 1% cinnamon powder and 0.5% cinnamon leaf extract are effective to inhibit A. hydrophila activity. In vivo test contained four treatments, i.e fish fed with 1% cinnamon leaf powder supplemented diet; 0.5% cinnamon leaf extract supplemented diet, positive control diet, and negative control diet. Each treatment was performed in three replications. The result showed that 1% cinnamon leaf powder supplemented diet obtained the best results to enhance the immune response of striped catfish higher survival rate value at 83.33% than the positive control diet (P<0.05). Keywords: Aeromonas hydrophila, Cinnamomum burmannii, extract, Pangasianodon hypophthalmus, powder. ABSTRAK Ikan patin Pangasianodon hypophthalamus termasuk komoditas yang banyak dibudidayakan secara intensif. Kendala budidaya seperti penyakit pun sulit untuk dihindari. Salah satu jenis penyakit yang kerap menyerang ikan patin yaitu penyakit MAS (motile aermomonad septicaemia) yang disebabkan oleh Aeromonas hydrophila. Penelitian ini bertujuan untuk menguji efektivitas 1% (w/w) tepung dan 0,5% (w/w) ekstrak daun kayu manis dalam pakan sebagai upaya pencegahan infeksi bakteri A. hydrophila pada ikan patin. Ikan patin yang digunakan berukuran 5,80 ± 0,21 g. Penelitian ini terdiri dua tahap yaitu uji in vitro dan uji in vivo. Hasil uji in vitro terhadap aktivitas antibakteri menunjukkan bahwa dosis 1% (w/w) tepung daun kayu manis dan 0.5% (w/w) ekstrak daun kayu manis efektif dalam menghambat pertumbuhan A. hydrophila. Uji in vivo terdiri atas empat perlakuan yaitu pemberian pakan dengan penambahan tepung daun kayu manis 1% (w/w), pemberian pakan dengan penambahan ekstrak daun kayu manis 0,5% (w/w), kontrol positif, dan kontrol negatif dengan masing-masing perlakuan terdiri atas tiga ulangan. Hasil penelitian menunjukkan bahwa penambahan 1% (w/w) tepung daun kayu manis dalam pakan memberikan hasil terbaik dalam meningkatkan respons imun ikan patin dengan tingkat kelangsungan hidup sebesar 83,33% lebih tinggi dibandingkan kontrol positif (P<0,05). Kata kunci: Aeromonas hydrophila, Cinnamomum burmannii, ekstrak, Pangasianodon hypophthalmus, tepung

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Optimisation and standardisation of functional immune assays for striped catfish (Pangasianodon hypophthalmus) to compare their immune response to live and heat killed Aeromonas hydrophila as models of infection and vaccination

Fish & Shellfish Immunology ◽

10.1016/j.fsi.2014.07.021 ◽

2014 ◽

Vol 40 (2) ◽

pp. 374-383 ◽

Cited By ~ 29

Author(s):

Wanna Sirimanapong ◽

Kim D. Thompson ◽

Kan Kledmanee ◽

Prawporn Thaijongrak ◽

Bertrand Collet ◽

...

Keyword(s):

Immune Response ◽

Aeromonas Hydrophila ◽

Pangasianodon Hypophthalmus ◽

Striped Catfish ◽

Immune Assays

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Potential of Chromolaena odorata Leaf as A Cure of Aeromonas hydrophila on Giant Gouramy (Osphronemus gouramy)

Jurnal Akuakultur Indonesia ◽

10.19027/jai.4.139-144 ◽

2007 ◽

Vol 4 (2) ◽

pp. 139 ◽

Cited By ~ 1

Author(s):

Y. Hadiroseyani ◽

. Hafifuddin ◽

M. Alifuddin ◽

H. Supriyadi

Keyword(s):

Aeromonas Hydrophila ◽

Leaf Extract ◽

In Vitro Study ◽

In Vitro Test ◽

Chromolaena Odorata ◽

In Vivo Test ◽

Treated Fish ◽

Vitro Test

This study was conducted to examine the potency of Chromolaena odorata leaf extract as a medicine for skin eruption disease caused by Aeromonas hydrophila in giant gouramy Osphronemus gouramy. Leaf extract of Chromolaena odorata for in vitro test was 0 (as control), 13000, 15000, 17000, 19000 and 21000 ppm, poured onto TSA medium containing bacteria 103 cfu/ml, and then is incubated for 24 hours. In vivo test was performed by injecting bacteria 0.1 ml of 109 cfu/ml intramuscularly into giant gouramy (14 g weight), and then fish were maintained in the water containing 15000 ppm of Chromolaena odorata leaf extract. In vitro study showed that prevention area of leaf extract against Aeromonas hydrophila was increase by increasing the concentration of leaf extract used, reached 9,33 mm. Prevention zone of leaf extract by difusion tends to constant, reached 7,6 mm. By in vivo test, survival rate of giant gouramy infected by Aeromonas hydrophila was no significantly different between dosages of leaf extract. All treated fish, excluded control died after 24 hours infection. Keywords: Aeromonas hydrophila, Osphronemus gouramy, Chromolaena odorata ABSTRAK Penelitian ini dilakukan untuk mengetahui potensi daun kirinyuh Chromolaena odorata sebagai obat untuk penyakit cacar yang diakibatkan oleh Aeromonas hydrophila pada ikan gurame Osphronemus gouramy. Konsentrasi ekstrak daun Chromolaena odorata untuk uji in vitro adalah 13000, 15000, 17000, 19000 dan 21000 serta 0 ppm sebagai kontrol, yang diletakkan di atas media TSA yang telah mengandung biakan bakteri 103 cfu/ml dan diinkubasi selama 24 jam. Uji in vivo dilakukan dengan menginjeksikan bakteri sebanyak 0,1 ml (109 cfu/ml) secara intramuskular ke ikan gurame (berat 14 g) dan kemudian ikan dipelihara dalam air yang mengandung ekstrak daun kirinyuh 15000 ppm. Hasil uji in virto menunjukkan bahwa semakin tinggi konsentrasi ekstrak daun kirinyuh basah semakin efektif dalam menghambat perkembangan A. hydrophila dengan zona hambat tertinggi mencapai 9,33 mm. Zona hambat yang dihasilkan melalui metode difusi cenderung konstan, mencapai 7,6 mm. Melalui uji in vivo, tingkat kelangsungan hidup ikan gurame yang tidak berbeda nyata pada masing-masing perlakuan, bahkan terjadi kematian total dalam 24 jam pada semua perlakuan, kecuali kontrol. Kata kunci: Aeromonas hydrophila, Osphronemus gouramy, Chromolaena odorata

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Prospect use of Phaleria macrocarpa to prevent motile aeromonad septicaemia disease in Patin Catfish Pangasianodon hypophthalmus

Jurnal Akuakultur Indonesia ◽

10.19027/jai.6.109-117 ◽

2007 ◽

Vol 6 (1) ◽

pp. 109

Author(s):

D. Wahjuningrum ◽

S.L. Angka ◽

W. Lesmanawati ◽

. Sa’diyah ◽

M. Yuhana

Keyword(s):

Aeromonas Hydrophila ◽

Clinical Signs ◽

Bacterial Disease ◽

In Vitro Test ◽

In Vitro Susceptibility ◽

In Vivo Test ◽

Pangasianodon Hypophthalmus ◽

Phaleria Macrocarpa

Motile Aeromonad Septicaemia (MAS) disease is one of bacterial disease frequently infecting freshwater fishes including patin catfish Pangasianodon hypophthalmus. This study was performed to determine antimicrobial of Phaleria macrocarpa (PM) and its potency against MAS disease caused by Aeromonas hydrophila. The in vitro susceptibility test was performed by pour plate methods at the dosages of 2, 4, 6, 8, and 10 g/l PM. At the in vivo test, fish were fed with the addition of PM into the diet at a dosage of 6, 12, and 18 g/l and 0 g/l as a control for 8 days. At ninth day, fish were infected with A.hydrophila. For seven days after infection the clinical signs and blood pictures were observed. The in vitro test indicated that PM had an antibacterial effect to A.hydrophila at the dosage of 6 g/l. Addition of PM in the diet for 8 days increased haemoglobine. The results showed that lowest clinical sign and smallest number of in fected fish was found at dosage of 12 g/l PM. PM can be used as a preventive method for MAS. Keywords: Phaleria macrocarpa, antibacterial, "patin", MAS disease, Aeromonas hydrophila Abstrak Penyakit MAS (Motile Aeromonad Septicaemia) merupakan penyakit bakterial yang banyak menyerang ikan-ikan air tawar termasuk patin Pangasianodon hypophthalmus. Penelitian ini bertujuan untuk melihat kemampuan antibakteri dari mahkota dewa (MD) Phaleria macrocarpa terhadap Aeromonas hydrophila penyebab penyakit MAS dan potensinya dalam pencegahan penyakit ini. Pada uji in vitro dilakukan pengujian aktivitas antibakteri MD terhadap A. hydrophila dengan metode hitungan cawan pada dosis MD 2, 4, 6, 8, dan 10 g/l. Pada uji in vivo, ikan uji diberi pakan yang dicampur MD dengan dosis berbeda yaitu 0 g/l (kontrol +), 6, 12, dan 18 g/l, selama 8 hari. Pada hari kesembilan ikan disuntik dengan A. hydrophila dan pengamatan dilanjutkan selama 7 hari, meliputi pengamatan gejala klinis dan gambaran darah. Hasil penelitian menunjukkan bahwa MD bersifat antibakteri terhadap A. hydrophila dengan dosis efektif 6 g/l. Pemberian MD selama 8 hari dapat meningkatkan kadar hemoglobin, kadar hematokrit, jumlah lekosit, serta meningkatkan kemampuan fagositik darah. Dosis MD sebesar 12 g/l menunjukkan hasil paling baik yang ditunjang oleh gejala klinis paling ringan (sampai tahap nekrosis), dengan jumlah ikan yang terinfeksi paling sedikit (45%) dan waktu penyembuhan paling cepat (hari ke 6). Dengan demikian, MD dapat digunakan untuk mencegah penyakit MAS. Kata kunci: mahkota dewa, antibakterial, ikan patin, penyakit MAS, Aeromonas hydrophila

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Aktivitas antibakteri salep ekstrak etanol daun sirih hijau (Piper betleL.) Terhadap infeksi bakteri Staphylococcus aureus

Kartika Jurnal Ilmiah Farmasi ◽

10.26874/kjif.v5i2.129 ◽

2018 ◽

Vol 5 (2) ◽

pp. 56

Author(s):

Rissa Laila Vifta ◽

Muhammad Andri Wansyah ◽

Anita Kumala Hati

Keyword(s):

Staphylococcus Aureus ◽

Leaf Extract ◽

Ethanol Extract ◽

Positive Control ◽

Piper Betle ◽

In Vitro Test ◽

In Vivo Test ◽

Betel Leaf

Abstrak Sirih hijau (Piper betle L.) adalah tanaman yang mudah dijumpai di Indonesia. Secara empiris, sirih hijau digunakan sebagai antibakteri pada luka. Penelitian ini bertujuan untuk mengetahui aktivitas salep ekstrak etanol daun sirih hijau sebagai antibakteri. Pengujian efek antibakteri dilakukan secara in vitro dan in vivo. Ekstrak etanol daun sirih hijau dibuat dengan cara maserasi. Pengujian secara in vitro dilakukan menggunakan metode mikrodilusi terhadap Staphylococcus aureus untuk mengetahui nilai konsentrasi hambat minimum ekstrak daun sirih hijau pada konsentrasi 3, 4, dan 5%. Kemudian ekstrak dibuat salep dan diuji secara in vivo menggunakan hewan uji tikus yang terdiri dari kelompok kontrol negatif, kelompok ekstrak (konsentrasi 3,4, dan 5%), serata pembanding kontrol positif gentamisin 0,1%. Hasil uji dianalisis menggunakan Sapiro-Wilk dan dilanjutkan dengan uji ANAVA serta uji LSD untuk mengetahui perbandingan hasil kelima kelompok perlakuan. Hasil uji in vitro menunjukkan bahwa konsentrasi hambat minimum ekstrak daun sirih yang optimal adalah 5%. Hasil uji in vivo menunjukkan lama kesembuhan luka meningkat seiring dengan bertambahnya konsentrasi ekstrak daun sirih hijau. Hasil uji normalitas, Anava, dan uji LSD pada uji in vivo memberikan hasil yang sejalan. Konsentrasi 4 dan 5% merupakan konsentrasi efektif dengan aktivitas waktu kesembuhan luka tidak berbeda bermakna dengan kontrol positif (gentamisin 0,1%) dengan rerata waktu berturut-turut 6,20±0,80 dan 6,00±0,71 hari. Dapat disimpulkan bahwa hasil uji antibakteri pada salep sejalan dengan uji secara in-vitro ekstrak daun Sirih Hijau yang memiliki potensi sebagai antibakteri.Kata kunci: Daun sirih hijau, Antibakteri, Salep, Luka Antibacterial activity from ointment contains extract of green betle leaves (Piper betle l.) to Staphylococcus aureus bacterial infection Abstract Green betel (Piper betle L.) is a plant that is easy to find in Indonesia. Empirically, green betel is used as an antibacterial to the wound. This study aims to determine the activity of ointment of ethanol extract of green betel leaves as antibacterial. Tests of antibacterial effects were performed in vitro and in vivo. Ethanol extract of green betel leaf is made by maceration. In vitro testing was done using micro dilution method to Staphylococcus aureus to determine the minimum inhibitory concentration of green leaf extract at concentrations of 3, 4, and 5%. Then the extract was made ointment and tested in vivo using rat consisting of the negative control group, the extract group (concentrations 3,4, and 5%), the positive control of gentamicin 0.1%. The test results were analyzed using Sapiro-Wilk and continued with ANAVA test and LSD test to find out the comparison of the results of the five treatment groups. The results of in vitro test showed that the minimum inhibit concentration of green betel leaf extract was 5%. The results of in vivo test showed the duration of wound healing increased with increasing concentration of green betel leaf extract. The result of normality test, Anava, and LSD test on in vivo test give the same result. Concentrations of 4 and 5% were effective concentrations with wound healing time activity were not significantly different with positive control (gentamicin 0.1%) with mean time of 6.20 ± 0.80 and 6.00 ± 0.71 days respectively. It can be concluded that the antibacterial test results in ointment are in line with in vitro test of leaf green betel extract which has potential as antibacterial.Key words: Green betel, Antibacterial, Ointment, Wound

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In vivo effects of Escherichia coli lipopolysaccharide on regulation of immune response and protein expression in striped catfish (Pangasianodon hypophthalmus)

Fish & Shellfish Immunology ◽

10.1016/j.fsi.2012.11.025 ◽

2013 ◽

Vol 34 (1) ◽

pp. 339-347 ◽

Cited By ~ 36

Author(s):

Bui Thi Bich Hang ◽

Sylvain Milla ◽

Virginie Gillardin ◽

Nguyen Thanh Phuong ◽

Patrick Kestemont

Keyword(s):

Escherichia Coli ◽

Immune Response ◽

Protein Expression ◽

Pangasianodon Hypophthalmus ◽

Striped Catfish ◽

In Vivo Effects ◽

Escherichia Coli Lipopolysaccharide

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Pemanfaatan ekstrak daun inai (Lawsonia inermis l.) sebagai bakterisida terhadap Aeromonas hydrophila yang menginfeksi ikan lele sangkuriang (Clarias gariepinus)

DEPIK ◽

10.13170/depik.4.3.3056 ◽

2015 ◽

Vol 4 (3) ◽

Cited By ~ 1

Author(s):

Sofyatuddin Karina ◽

Mimie Saputri ◽

Muhammad Naufal

Keyword(s):

Survival Rate ◽

Aeromonas Hydrophila ◽

Leaf Extract ◽

Clarias Gariepinus ◽

Inhibition Zone ◽

Measured Parameter ◽

In Vitro Test ◽

Lawsonia Inermis

Abstract. The objective of this research was to find out the effectiveness of henna leaf extract (Lawsonia inermis L.) on A. hydrophila in vitro and its effect on the survival rate of Clarias gariepinus that infected by those bacterias in vivo. The research was conducted at chemistry laboratory of Teacher Training and Education Faculty, Syiah Kuala University and at Microbiology laboratory, Brackishwater aquaculture Department Center, Ujong Batee on Avril to September, 2015. The research involved in vitro test with the inhibition zone as measured parameter and in vivo test with the survival rate value as measured parameter. The treated concentrations were 1, 2, 3, 4 and 5% of extract. The result of in vitro test showed that henna leaf extract was effective against A. hydrophila with the inhibition zone for 1, 2, 3, 4, and 5% extract were 5.45; 5.7; 6.5; 7.5; and 9.6 mm, respectively. The result of ANOVA test showed that henna leaf extract has a significant effect on the survival rate of catfish (P<0.05). The best survival rate was obtained at 4% of extract concentration. Keywords: Aeromonas hydrophila; henna leaf extract; catfishAbstrak. Penelitian ini bertujuan untuk mengetahui efektivitas ekstrak daun inai (Lawsonia inermis L.) terhadap A. hydrophila secara in vitro dan pengaruhnya secara in vivo terhadap kelangsungan hidup ikan lele sangkuriang (Clarias gariepinus) yang terinfeksi bakteri ini dengan cara perendaman. Penelitian ini dilakukan di Laboratorium kimia, FKIP Unsyiah dan Laboratorium Mikrobiologi Balai Budidaya Perikanan Air Payau (BBAP) Ujong Batee pada dari bulan April hingga bulan September 2015. Penelitian ini meliputi uji in vitro dengan parameter uji berupa zona hambat ekstrak terhadap bakteri dan uji in vivo dengan parameter uji berupa nilai kelangsungan hidup ikan lele sangkuriang pasca perlakuan dengan ekstrak. Konsentrasi perlakuan yang dilakukan adalah 1, 2, 3, 4, dan 5%. Hasil uji in vitro menunjukkan bahwa ekstrak daun inai (Lawsonia inermis L.) terbukti efektif terhadap Aeromonas hydrophila dengan nilai zona hambat secara berturut-turut terhadap konsentrasi 1, 2, 3, 4 dan 5% adalah 5,45; 5,7; 6,5; 7,5; dan 9,6 mm. Hasil uji ANOVA menunjukkan bahwa ekstrak daun inai berpengaruh nyata (P<0,05) terhadap kelangsungan hidup ikan lele sangkuriang. Tingkat kelangsungan hidup ikan terbaik diperoleh pada konsentrasi ekstrak 4%.<div>Kata kunci : Aeromonas hydrophila; ekstrak daun inai; ikan lele sangkuriang </div>

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Aktivitas antibakteri salep ekstrak etanol daun sirih hijau (Piper betleL.) Terhadap infeksi bakteri Staphylococcus aureus

Kartika Jurnal Ilmiah Farmasi ◽

10.26874/kjif.v5i2.117 ◽

2017 ◽

Vol 5 (2) ◽

pp. 56

Author(s):

Rissa Laila Vifta ◽

Muhammad Andri Wansyah ◽

Anita Kumala Hati

Keyword(s):

Staphylococcus Aureus ◽

Leaf Extract ◽

Ethanol Extract ◽

Positive Control ◽

Piper Betle ◽

In Vitro Test ◽

In Vivo Test ◽

Betel Leaf

Abstrak Sirih hijau (Piper betle L.) adalah tanaman yang mudah dijumpai di Indonesia. Secara empiris, sirih hijau digunakan sebagai antibakteri pada luka. Penelitian ini bertujuan untuk mengetahui aktivitas salep ekstrak etanol daun sirih hijau sebagai antibakteri. Pengujian efek antibakteri dilakukan secara in vitro dan in vivo. Ekstrak etanol daun sirih hijau dibuat dengan cara maserasi. Pengujian secara in vitro dilakukan menggunakan metode mikrodilusi terhadap Staphylococcus aureus untuk mengetahui nilai konsentrasi hambat minimum ekstrak daun sirih hijau pada konsentrasi 3, 4, dan 5%. Kemudian ekstrak dibuat salep dan diuji secara in vivo menggunakan hewan uji tikus yang terdiri dari kelompok kontrol negatif, kelompok ekstrak (konsentrasi 3,4, dan 5%), serata pembanding kontrol positif gentamisin 0,1%. Hasil uji dianalisis menggunakan Sapiro-Wilk dan dilanjutkan dengan uji ANAVA serta uji LSD untuk mengetahui perbandingan hasil kelima kelompok perlakuan. Hasil uji in vitro menunjukkan bahwa konsentrasi hambat minimum ekstrak daun sirih yang optimal adalah 5%. Hasil uji in vivo menunjukkan lama kesembuhan luka meningkat seiring dengan bertambahnya konsentrasi ekstrak daun sirih hijau. Hasil uji normalitas, Anava, dan uji LSD pada uji in vivo memberikan hasil yang sejalan. Konsentrasi 4 dan 5% merupakan konsentrasi efektif dengan aktivitas waktu kesembuhan luka tidak berbeda bermakna dengan kontrol positif (gentamisin 0,1%) dengan rerata waktu berturut-turut 6,20±0,80 dan 6,00±0,71 hari. Dapat disimpulkan bahwa hasil uji antibakteri pada salep sejalan dengan uji secara in-vitro ekstrak daun Sirih Hijau yang memiliki potensi sebagai antibakteri.Kata kunci: Daun sirih hijau, Antibakteri, Salep, Luka Antibacterial activity from ointment contains extract of green betle leaves (Piper betle l.) to Staphylococcus aureus bacterial infection Abstract Green betel (Piper betle L.) is a plant that is easy to find in Indonesia. Empirically, green betel is used as an antibacterial to the wound. This study aims to determine the activity of ointment of ethanol extract of green betel leaves as antibacterial. Tests of antibacterial effects were performed in vitro and in vivo. Ethanol extract of green betel leaf is made by maceration. In vitro testing was done using micro dilution method to Staphylococcus aureus to determine the minimum inhibitory concentration of green leaf extract at concentrations of 3, 4, and 5%. Then the extract was made ointment and tested in vivo using rat consisting of the negative control group, the extract group (concentrations 3,4, and 5%), the positive control of gentamicin 0.1%. The test results were analyzed using Sapiro-Wilk and continued with ANAVA test and LSD test to find out the comparison of the results of the five treatment groups. The results of in vitro test showed that the minimum inhibit concentration of green betel leaf extract was 5%. The results of in vivo test showed the duration of wound healing increased with increasing concentration of green betel leaf extract. The result of normality test, Anava, and LSD test on in vivo test give the same result. Concentrations of 4 and 5% were effective concentrations with wound healing time activity were not significantly different with positive control (gentamicin 0.1%) with mean time of 6.20 ± 0.80 and 6.00 ± 0.71 days respectively. It can be concluded that the antibacterial test results in ointment are in line with in vitro test of leaf green betel extract which has potential as antibacterial.Key words: Green betel, Antibacterial, Ointment, Wound

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Application of Bacillus probiotic to prevent Aeromonas hydrophilla infection in Clarias sp.

Jurnal Akuakultur Indonesia ◽

10.19027/jai.13.105-114 ◽

2015 ◽

Vol 13 (2) ◽

pp. 105 ◽

Cited By ~ 3

Author(s):

Mohammad Faizal Ulkhaq ◽

, Widanarni ◽

Angela Mariana Kusumastuti

Keyword(s):

Aeromonas Hydrophila ◽

Pathogenic Bacteria ◽

Clarias Gariepinus ◽

Positive Control ◽

Negative Control ◽

Probiotic Bacteria ◽

African Catfish ◽

Control Application

ABSTRACT The aim of this study was to test the effectiveness of a probiotic Bacillus for the prevention of motile aeromonad septicemia (MAS) disease caused by Aeromonas hydrophila in African catfish (Clarias gariepinus). The study consisted of the inhibition testing of A. hydrophila by Bacillus (in vitro) and the application of probiotic in African catfish (in vivo). The in vivo test, consisted of five treatments such as the addition of probiotic Bacillus P4I1 RifR, Bacillus P4I2 RifR, Bacillus P4I1 RifR + Bacillus P4I2 RifR (Kom), positive control (K+; only added with A. hydrophila) and negative control (K-; without probiotic nor A. hydrophila addition). African catfish (13.35±2.80 g) was maintained in 15 aquariums (40 L in volume) with 30 fishes each for 30 days. Probiotic bacteria was applied in water once a day, whereas pathogenic bacteria A. hydrophila RifR (103 cfu/mL) were added once in earlier treatment (except for the negative control). The result showed that the optimal concentration of Bacillus to inhibit A. hydrophila on in vitro test was 104 cfu/mL. In vivo test showed that the addition of probiotic in media of cultivation could reduce the number of A. hydrophila, improve immune response, and also increase the survival of African catfish compared to positive control. Application of probiotic P4I1 RifR showed the highest survival (92.23%) of all treatments. Keywords: Bacillus, Clarias gariepinus, motile aeromonad septicemia, probiotic ABSTRAK Penelitian ini bertujuan untuk menguji efektivitas probiotik Bacillus dalam pencegahan penyakit motile aeromonad septicaemia (MAS) yang disebabkan oleh Aeromonas hydrophila pada ikan lele dumbo (Clarias gariepinus). Penelitian terdiri atas pengujian penghambatan bakteri probiotik Bacillus terhadap A. hydrophila secara in vitro, dilanjutkan dengan aplikasi pada budidaya ikan lele dumbo (in vivo). Pada uji in vivo, penelitian terdiri atas lima perlakuan yaitu budidaya ikan lele dumbo dengan penambahan probiotik Bacillus P4I1 RifR, Bacillus P4I2 RifR, kombinasi probiotik Bacillus P4I1 RifR + Bacillus P4I2 RifR (Kom), kontrol positif (K+; hanya ditambahkan A. hydrophila) dan kontrol negatif (K-; tanpa pemberian probiotik dan A. hydrophila). Ikan lele dumbo (13,35±2,80 g) dipelihara pada akuarium volume 40 L dengan kepadatan 30 ekor/akuarium selama 30 hari. Bakteri probiotik ditambahkan pada media pemeliharaan ikan setiap hari, sedangkan bakteri patogen A. hydrophila RifR (103 cfu/ mL) diberikan sekali pada awal pemeliharaan (kecuali pada kontrol negatif). Hasil penelitian menunjukkan bahwa konsentrasi terbaik pada penghambatan in vitro adalah dengan penambahan Bacillus 104 cfu/mL. Hasil uji in vivo menunjukkan perlakuan penambahan probiotik pada media budidaya efektif dapat menekan jumlah bakteri A. hydrophila, memperbaiki respons imun, dan meningkatkan kelangsungan hidup ikan lele dumbo dibanding kontrol positif. Perlakuan probiotik P4I1 RifR memberikan hasil terbaik dengan tingkat kelangsungan hidup tertinggi yaitu 92,23%. Kata kunci: Bacillus, Clarias gariepinus, motile aeromonad septicemia, probiotik

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Therapeutic Effect, Chemical Composition, Ethnobotanical Profile of Eu-calyptus globulus: A Review

Letters in Organic Chemistry ◽

10.2174/1570178617999200807213043 ◽

2020 ◽

Vol 17 ◽

Author(s):

Fatemeh Jafari ◽

Mahin Ramezani ◽

Homa Nomani ◽

Mohammad Sadegh Amiri ◽

Ali Tafazoli Moghadam ◽

...

Keyword(s):

Immune Response ◽

Chemical Composition ◽

Leaf Extract ◽

Food Additive ◽

Therapeutic Effects ◽

The World ◽

Wound Healing Effect ◽

Main Component

Abstract:: The composition of essential oil (EO) of E. globulus is so different all over the world. The main component of es-sential oil is 1,8-cineole(Compound 64), macrocarpal C(Compound 22), terpenes(Compound 23-92), oleanolic acid (Com-pound 21), and tannins(Compound 93-99). We searched in vitro and in vivo articles and reviewed botanical aspects, thera-peutic activity, chemical composition and mechanism of action of E. globulus. Essential oils and extracts of leaves, stump, wood, root and fruits of E. globulus represented many various medicinal effects including antibacterial, antifungal, antidia-betic, anticancer, anthelmintic, antiviral, antioxidant, anti-inflammatory, protection against UV-B, wound healing effect and stimulating the immune response. Also leaf extract of eucalyptus is used as food additive in industry. Eucalyptus has so many different therapeutic effects and some of these effects confirmed by pharmacological and clinical studies. More clini-cal studies are recommended to confirm the useful pharmacological activity of E. globulus.

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Effect of sodium chloride and temperature on biofilm formation and virulence of Flavobacterium columnare isolated from striped catfish (Pangasianodon hypophthalmus)

Can Tho University Journal of Science ◽

10.22144/ctu.jen.2020.025 ◽

2020 ◽

Vol 12 (3) ◽

Author(s):

Nguyen Thi Kim My ◽

Tu Thanh Dung ◽

Channarong Rodkhum ◽

Dong Thanh Ha

Keyword(s):

Biofilm Formation ◽

In Vitro Study ◽

Microtiter Plate ◽

Flavobacterium Columnare ◽

Immersion Method ◽

Microtiter Plate Assay ◽

Pangasianodon Hypophthalmus ◽

Striped Catfish

This research was conducted to investigate the biofilm formation ability at various salt concentrations and temperatures of Flavobacterium columnare isolated from striped catfish (Pangasianodon hypophthalmus) at Can Tho University. Microtiter plate assay and the in vivo challenge were used to test the virulence of this strain of F. columnare for 10 days by immersion method at different salt concentrations (0, 3, 6, 9, 12 and 15 ppt). Results showed that biofilm formation of F.columnare was inhibited at 3 and 6 ppt and stronger reductions were recorded at 9, 12 and 15 ppt. In the same trend, the higher temperature the lower biofilm formation, the highest biofilm formation was at 25°C treatment, then it was reduced at 28 and 31°C and at 35°C the formed biofilm was greatly reduced. Interestingly, there were no statistically significant differences between 28 and 31°C (P>0.05). The virulent study found that 100% fish died after 1 day post challenge at 0 ppt. There were 10% and 25% of fish died at 3 and 6 ppt respectively. No dead fish was found at 9 and 12 ppt. In conclusion, biofilm formation was inhibited at 3 ppt, was almost controlled at 9, 12 and 15 ppt and was also mostly reduced at 31°C at least in the in-vitro study. Furthermore, the virulence of this bacterial strain was controlled 90% at 3 ppt and completely controlled (100%) at 9, 12 and 15 ppt.

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