scholarly journals Evaluation of herbal antiseptic red teak leaf extract (Tectona grandis Linn. F.) as teat gel for dairy cow

2020 ◽  
Vol 518 ◽  
pp. 012019
Author(s):  
Tituk Suselowati ◽  
Susan Sitha Irma Yuhanita ◽  
Prasetyo Ardiansyah ◽  
Dian Wahyu Harjanti
Keyword(s):  
Dairy Cow ◽  
Leaf Extract ◽  
Tectona Grandis

scholarly journals FORMULASI SEDIAAN KRIM KOMBINASI EKSTRAK DAUN SELEDRI (Apium graveolens L.) DAN DAUN JATI (Tectona grandis Linn.F) SEBAGAI ANTIBAKTERI TERHADAP Staphylococcus aureus

PHARMACON ◽  
2020 ◽  
Vol 9 (2) ◽  
pp. 259
Author(s):  
Riska Tuloli ◽  
Hosea Jaya Edi ◽  
Imam Jayanto
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Leaf Extract ◽  
Tectona Grandis ◽  
Test Method ◽  
Apium Graveolens ◽  
Homogeneity Test ◽  
Cycling Test ◽  
Physical Tests ◽  
Dispersion Test

ABSTRACT Celery plants (Apium graveolens L.) and teak plants (Tectona grandis Linn.f) are plants that contain flavonoids, tannins, and saponins and has antibacterial activity against Staphylococcus aureus. This study aims to test the antibacterial effectiveness of combination of celery and teak leaf cream and evaluate cream with parameters of physical tests (organoleptic, homogeneity, pH, spreadability, adhesion) and physical stability with cycling test method. This study used an experimental laboratory method by making 5 variations concentration of extracts. Celery and teak leaf extract was extracted by maceration method. Antibacterial test used the wells method. Results of the evaluation of physical tests for organoleptic test (odor: a typical combination of extracts;color: brown;shape: semi-solid), homogeneity test (homogeneous), average of pH test is 6.02, dispersion test is 4.27 cm, adhesion test is 18.42 seconds. Based on the results of this study, concluded that the combination of celery leaf and teak leaf extract can be formulated into a cream. The cream of combination of celery and teak leafs extract are bacteriostatic and has antibacterial activity with an average diameter for formulation I 13.4 mm, formulation II 9.23 mm, formulation III 16.23 mm, formulation IV 11 mm, and formulation V 12.06 mm. Keywords : Celery (Apium graveolens L.), Teak (Tectona grandis Linn.f), Antibacterial, Cream. ABSTRAK Tanaman seledri (Apium graveolens L.) dan tanaman jati (Tectona grandis Linn.f) merupakan tanaman yang mengandung flavonoid, tanin dan saponin dan memiliki aktivitas antibakteri terhadap Staphylococcus aureus. Penelitian ini bertujuan untuk menguji aktivitas antibakteri sediaan krim kombinasi ekstrak daun seledri dan daun jati serta mengevaluasi sediaan krim dengan parameter uji sifat fisik (uji organoleptik, uji homogenitas, uji pH, uji daya sebar, uji daya lekat) dan stabilitas fisik dengan metode cycling test. Penelitian ini menggunakan metode eksperimental laboratorium dengan membuat 5 variasi konsentrasi ekstrak. Ekstrak diperoleh dengan cara maserasi. Uji antibakteri dilakukan dengan metode sumuran. Hasil evaluasi sifat fisik untuk uji organoleptik (bau: khas kombinasi ekstrak;warna:coklat;bentuk:setengah padat), uji homogenitas (susunan homogen), rata-rata uji pH 6,02, daya sebar 4,27 cm, daya lekat 18,42 detik. Berdasarkan hasil penelitian disimpulkan bahwa kombinasi ekstrak daun seledri dan daun jati dapat diformulasikan menjadi sediaan krim. Sediaan krim kombinasi ekstrak daun seledri dan daun jati bersifat bakteriostatik dan memiliki aktivitas antibakteri dengan diameter rata-rata untuk formula I 13,4 mm, formula II 9,23 mm, formula III 16,23 mm, formula IV 11 mm, dan formula V 12,06 mm. Kata Kunci : Seledri (Apium graveolens L.), Jati (Tectona grandis Linn.f), Antibakteri, Krim

Electrochemical investigation of the corrosion inhibition mechanism of Tectona grandis leaf extract for SS304 stainless steel in hydrochloric acid

2017 ◽  
Vol 35 (2) ◽  
pp. 111-121 ◽  
Author(s):  
Sumithra Kadapparambil ◽  
Kavita Yadav ◽  
Manivannan Ramachandran ◽  
Noyel Victoria Selvam
Keyword(s):  
Stainless Steel ◽  
Hydrochloric Acid ◽  
Metal Surface ◽  
Potentiodynamic Polarization ◽  
Leaf Extract ◽  
Electrochemical Impedance ◽  
Electrochemical Techniques ◽  
Standard Free Energy ◽  
Tectona Grandis ◽  
Inhibition Mechanism

AbstractThe use of Tectona grandis leaf extract as a green corrosion inhibitor for stainless steel 304 (SS304) in 2 m hydrochloric acid was investigated using electrochemical techniques. Potentiodynamic polarization studies with different inhibitor concentrations showed that the inhibitor is of mixed type, which works by affecting both cathodic and anodic reactions. Adsorption analysis using the potentiodynamic polarization and electrochemical impedance spectroscopy runs result in standard free energy of adsorption values between −20 kJ mol−1 and −40 kJ mol−1, indicating a comprehensive adsorption, which is a mixture of both physisorption and chemisorptions processes. Fourier transform infrared spectroscopy studies show the appearance of new peaks and shift in peak positions at some locations with the use of an inhibitor, which indicates the interaction between the inhibitor molecules and metal surface. Contact angle analysis indicates the formation of hydrophobic film on the metal surface.

Preparation of pH test strip based on immobilized Tectona grandis L. leaf extract on the alginate-chitosan membrane

2021 ◽  
Author(s):  
Nurul Ismillayli ◽  
Rahayu Juniharti ◽  
Septia Hadiyati ◽  
Dhony Hermanto
Keyword(s):  
Leaf Extract ◽  
Tectona Grandis ◽  
Test Strip ◽  
Chitosan Membrane

Tectona grandis leaf extract, free and associated with nanoemulsions, as a possible photosensitizer of mouse melanoma B16 cell

2017 ◽  
Vol 167 ◽  
pp. 242-248 ◽  
Author(s):  
Cydia de Menezes Furtado ◽  
Fernando Sergio Escocio Drumond Viana de Faria ◽  
Ricardo Bentes Azevedo ◽  
Karen Py-Daniel ◽  
Ana Lygia dos Santos Camara ◽  
...  
Keyword(s):  
Leaf Extract ◽  
Tectona Grandis ◽  
Mouse Melanoma ◽  
Melanoma B16

scholarly journals Mini-Review: Antibacterial Products from Teak Leaf Extract (Tectona grandis L.)

2020 ◽  
Vol 11 (SPL4) ◽  
pp. 2481-2487
Author(s):  
Latifah Azmi ◽  
Paramitha Retno Ramadhanti ◽  
Afreza Tamimi Hasibuan ◽  
Waras Nurcholis
Keyword(s):  
Leaf Extract ◽  
Agricultural Waste ◽  
Ethanol Extract ◽  
Tectona Grandis ◽  
Fruit And Vegetable ◽  
Liquid Soap ◽  
Online Journal ◽  
Antibacterial Compounds ◽  
Commercial Soap ◽  
Weather Changes

Teak (Tectona grandis L.) is a plant that has a high resistance to weather changes and termite attacks. The dominant use of teak in the furniture industry left behind its leaf as agricultural waste (agro-waste). Several pharmacological activities have been identified in the teak leaf part. In this review article, the authors gathered information from previous studies regarding the potential use of teak leaf antibacterial compounds to be made into various antibacterial products, namely hand sanitizers, floor disinfectants, fruit and vegetable disinfectants, and deodorant. Literature searches are carried out through search engines and online journal databases. The results of the literature review show that there are at least eight antibacterial compounds from teak leaf that have been isolated, identified, and tested for their activity, namely anthratectone, naphthotectone, juglone, gallic acid, ellagic acid, rutin, quercetin, and sitosterol. Furthermore, it is known that the solvent that can be used for teak leaf extraction by providing the best antibacterial activity is ethanol. This information is used as a recommendation for optimization of teak leaf extraction as part of the author’s suggestion in making antibacterial products. In addition, previous research related to the use of ethanol extract from the teak leaf as an antibacterial product for liquid soap was also included. The study shows that the teak leaf extract liquid soap has promising activity compared to its comparable commercial soap, thereby strengthening the author's idea to utilize teak leaf extract as a component of the active ingredient of other antibacterial products, namely hand sanitizers, floor disinfectants, fruit and vegetable disinfectants, and deodorant.

scholarly journals COMPARISON OF PHENOLIC ACIDS AND ANTIOXIDANT ACTIVITIES OF YOUNG AND MATURE LEAVES OF TECTONA GRANDIS L F

2018 ◽  
Vol 11 (1) ◽  
pp. 60
Author(s):  
Greeshma Murukan ◽  
Murugan K
Keyword(s):  
Phenolic Compounds ◽  
Antioxidant Capacity ◽  
Phenolic Acids ◽  
Leaf Extract ◽  
Antioxidant Activities ◽  
Tectona Grandis ◽  
Mature Leaf ◽  
Leaf Extracts ◽  
Antioxidant Power ◽  
Mature Leaves

Objective: The present study aims in comparison of phenolic acids and its antioxidant potentialities of young and mature leaf extract of Tectona grandis L f.Methods: Various phenolic acids present in methanolic leaf extract of young and mature leaves of T. grandis were analyzed by reversed-phase high-performance liquid chromatography analysis. The antioxidant potentiality of the extracts was determined by various analytical methods such as 2,2-diphenyl-1-picrylhydrazyl, ferric reducing/antioxidant power, and metal chelating activity.Results: Methanolic leaf extracts of young and mature leaf of T. grandis showed a pool of phenolic compounds such as gallic, vanillic, p-hydroxybenzoic, ferulic, chlorogenic, sinapic, p-coumarate, and cinnamic acids. Irrespective of the methods used for analyzing antioxidant capacity, young leaf extract showed potent antioxidant potentiality when compared with the mature leaf extract.Conclusion: The methanolic extract of teak leaves is rich source of many phenolic compounds, and these compounds attribute to the antioxidant capacity of the leaves. Meanwhile, by comparing the young and mature leaves, the young leaves showed much more potential than the other. It is, therefore, concluded that the young teak leaves can be used as a good source of natural antioxidant.

scholarly journals KETOKSIKAN AKUT ORAL ZAT PEWARNA MAKANAN DAUN JATI (Tectona grandis L. f.) PADA TIKUS WISTAR

Pro Food ◽  
2018 ◽  
Vol 3 (2) ◽  
pp. 240
Author(s):  
Candra Dwipayana Hamdin ◽  
Dheni Cahyo ◽  
Dandiko Galanova
Keyword(s):  
Single Dose ◽  
Leaf Extract ◽  
Clinical Symptoms ◽  
Tectona Grandis ◽  
Female Rats ◽  
Oral Dosage ◽  
Control Group ◽  
Natural Food ◽  
Female Rat ◽  
Test Animal

Jati leaf becomes one of the alternative natural food coloring in some food producers. A research is needed to determine the potential of acute ketoxicity (LD50) and determine the clinical symptoms that arise also to see the groos patologi of organs resulting from single oral dosage of jati leaf extract. This research was conducted with complete randomized design using OECD 423 method. The test animal used was Wistar strain female rats. In this study, the test animals were divided into 2 groups, namely the control and treatment groups, each consisting of 3 test animals. Control group given Na CMC 0.5% and treatment group given jati leaf extract with a single dose of 2000 and 5000 mg/kg bw. Dosage starts from 2000 mg/kg bw, then increased to 5000 mg / kg bw in different rat. Observations were made for 14 days because single dose administration did not cause death. Test animals were sacrificed for gross observation of the vital organ pathologies (liver, kidney, heart, stomach, spleen, and small intestine). The results showed the potential toxicity (LD50) jati leaf extract using Wistar female rat test animal included in V category (not classified). The dosage of 2000 mg/kg bw did not show any change in behavior, the dosage of 5000 mg/kg bw gave clinical symptom on the central and somatomotor nerves in the form of increased aggressiveness and vocalization and gastrointestinal disturbances in the form of singultus in the test animals.   Keywords: Acute toxicity (LD50), gross pathology, histopathology, jati leaf extract (Tectona grandis L. f.), OECD 423.   ABSTRAK   Daun jati menjadi salah satu alternatif pewarna alami makanan pada sebagian produsen makanan. Perlu dilakukan penelitian untuk menentukan potensi ketoksikan akut (LD50) untuk mengetahui gejala-gejala klinik yang timbul dan melihat gambaran gross patologi organ akibat pemberian oral dosis tunggal ekstrak daun jati. Penelitian ini dilakukan dengan rancangan acak lengkap pola searah menggunakan metode OECD 423. Hewan uji yang digunakan adalah tikus betina galur Wistar. Pada penelitian ini, hewan uji dibagi menjadi 2 kelompok, yaitu kelompok kontrol dan perlakuan yang masing-masing terdiri dari 3 hewan uji. Kelompok kontrol dipejani Na CMC 0,5% dan kelompok perlakuan dipejani ekstrak daun jati dengan dosis tunggal 2000 dan 5000 mg/kg BB. Dosis pemejanan dimulai dari 2000 mg/kg BB, kemudian dinaikkan menjadi 5000 mg/kg BB pada tikus yang berbeda. Pengamatan dilakukan selama 14 hari karena pemejanan dosis tunggal tidak menyebabkan kematian. Hewan uji dikorbankan untuk pengamatan gross patologi organ vitalnya (hati, ginjal, jantung, lambung, limpa, dan usus halus). Hasil penelitian menunjukkan potensi ketoksikan (LD50) ekstrak daun jati menggunakan hewan uji tikus betina galur Wistar termasuk dalam kategori V (tidak terklasifikasikan). Pemejanan dosis 2000 mg/kg BB tidak menunjukkan perubahan tingkah laku, pada pemejanan dosis 5000 mg/kg BB memberikan gejala klinis pada saraf pusat dan somatomotor berupa peningkatan agresifitas dan vokalisasi serta gangguan pada saluran cerna berupa singultus pada hewan uji.   Keywords: ekstrak daun jati (Tectona grandis L. f.), gross patologi, histopatologi, OECD 423, toksisitas akut (LD50)

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