A review of application of natural products as fungicides for chili

Anthracnose disease in chillies is a serious problem for farmers. So far, synthetic fungicides have been used as solution for the treatment of this disease. However, the side effects of synthetic fungicides to public health and environment raised awareness on alternative fungicides derived from natural resources. This paper aims to review plants that are potential as an alternative to fungicides for chili plantation, fabrication of test solutions, in vitro and in vivo fungicide test. Many plants were investigated as alternatives to plant-based fungicide. The utilization of leaves as samples including rhizomes, roots, tubers, weevils, seeds, fruit, flowers and other parts of the plant. The extract fabrication method used as a fungicide test include: maceration method, gradual fractionation method, and decoction method. The maceration method is the method most widely used to extract fungicidal active compounds from plants. Some studies that carried out in vitro tests were unable to compare with synthetic fungicides so it was not possible to determine their effectiveness for plant-based fungicide for chillies when compared to synthetic fungicides. In vitro Extract of 80% alcohol and 10%/60% n-hexane of pacar cina (Aglaia odorata L.) leaves can be compared with the performance of propineb 0.2%. In addition, the 60% and 70% kirinyuh (Chromolaena odorata L.) leaf extracts were also able to match Acrobat 0.2% performance in vitro. Based on the in vivo test, suren (Toona sureni Merr) leaf extract and nut bulbs can be used as an alternative to vegetable / natural fungicides to help overcome the problem of anthracnose in chilies.

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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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Phytochemical evaluation and in vitro antidiabetic efficiency of isopropanolic leaf extract of pimenta racemosa

Kongunadu Research Journal ◽

10.26524/krj.2020.21 ◽

2020 ◽

Vol 7 (2) ◽

pp. 50-55

Author(s):

Anitha T A ◽

Pakutharivu T ◽

Nirubama K ◽

Akshaya V

Keyword(s):

Diabetes Mellitus ◽

Glucose Uptake ◽

Inhibitory Activity ◽

Leaf Extract ◽

Yeast Cells ◽

Antidiabetic Activity ◽

Leaf Extracts ◽

Pimenta Racemosa

The traditional herbal medicines are mainly obtained from plants are used in the management of Diabetes mellitus. The main objective of this work was to assess the presence of phytochemical compounds and to evaluate the in vitro antidiabetic activity of isopropanolic extracts of Pimenta racemosa leaves by studying their α-amylase inhibitory activity and glucose transport across yeast cells. Screening of phytochemicals showed positive results for alkaloids, steroids, cardiac glycosides, terpenoids, reducing sugars, anthraquinones, and results of in vitro α-amylase inhibitory studies demonstrated there was a dose-dependent increase in percentage inhibitory activity by the isopropanolic leaf extracts of Pimenta racemosa. At a concentration of 1 mg/ml, the extract showed a percentage inhibition 33.6 and for 5 mg/ml it was 91.2. The glucose uptake study was also studied through yeast cells by analyzing theamount of glucose remaining in the medium after a specific time intervals. It serves as an indicator for the capability of isopropanolic leaf extracts of Pimenta racemosa to transport the glucose into yeast cells. As a result, we found that the isopropanolic leaf extract of Pimenta racemosa have inhibitory activity against αamylase and also, which is efficient in glucose uptake. This therapeutic potentiality of Pimenta racemosa could be exploited in the treatment of Type 2 Diabetes mellitus. Further studies are also required to elucidate whether the plant have antidiabetic potential by in vivo for corroborating the traditional claim of the plant.

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The Anti-Proliferative and Anti-Invasive Effect of Leaf Extracts of Blueberry Plants Treated with Methyl Jasmonate on Human Gastric Cancer In Vitro Is Related to Their Antioxidant Properties

Antioxidants ◽

10.3390/antiox9010045 ◽

2020 ◽

Vol 9 (1) ◽

pp. 45 ◽

Cited By ~ 5

Author(s):

Alejandra Ribera-Fonseca ◽

Danae Jiménez ◽

Pamela Leal ◽

Ismael Riquelme ◽

Juan Carlos Roa ◽

...

Keyword(s):

Gastric Cancer ◽

Cancer Cell ◽

Leaf Extract ◽

Antioxidant Properties ◽

Human Gastric Cancer ◽

Leaf Extracts ◽

And Migration ◽

Related Proteins

Gastric cancer is the third main cause of cancerous tumors in humans in Chile. It is well-accepted that a diet rich in antioxidant plants could help in fighting cancer. Blueberry is a fruit crop with a high content of antioxidants. Methyl jasmonate (MeJA) is a phytohormone involved in plant defenses under stress conditions. The exogenous application of MeJA can improve the antioxidant properties in plants. We studied in vitro and in vivo anticancer action on human gastric cancer (cell line AGS) and the antioxidant properties of extracts from blueberry plants untreated and treated with MeJA. The results demonstrated that leaf extracts displayed a higher inhibition of cancer cell viability as well as greater antioxidant properties compared to fruit extracts. Besides, MeJA applications to plants improved the antioxidant properties of leaf extracts (mainly anthocyanins), increasing their inhibition levels on cell viability and migration. It is noteworthy that leaf extract from MeJA-treated plants significantly decreased cancer cell migration and expression of gastric cancer-related proteins, mainly related to the mitogen-activating protein kinase (MAPK) pathway. Interestingly, in all cases the anticancer and antioxidant properties of leaf extracts were strongly related. Despite highlighted outcomes, in vivo results did not indicate significant differences in Helicobacter pylori colonization nor inflammation levels in Mongolian gerbils unfed and fed with blueberry leaf extract. Our findings demonstrated that MeJA increased antioxidant compounds, mainly anthocyanins, and decreased the viability and migration capacity of AGS cells. In addition, leaf extracts from MeJA-treated plants were also able to decrease the expression of gastric cancer-related proteins. Our outcomes also revealed that the anthocyanin-rich fraction of blueberry leaf extracts showed higher in vitro antiproliferative and anti-invasive effects than the crude leaf extracts. However, it is still uncertain whether the leaf extracts rich in anthocyanins of blueberry plants are capable of exerting a chemopreventive or chemoprotective effect against gastric cancer on an in vivo model.

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Recent Progress in the Eye Irritation Test

Toxicology and Industrial Health ◽

10.1177/074823379300900602 ◽

1993 ◽

Vol 9 (6) ◽

pp. 1017-1025 ◽

Cited By ~ 10

Author(s):

Ih Chu ◽

Peter Toft

Keyword(s):

Animal Studies ◽

In Vitro Tests ◽

Animal Testing ◽

Regulatory Requirements ◽

Eye Irritation ◽

Significant Development ◽

In Vivo Test ◽

Irritation Test

The rabbit eye irritation test based on the Draize method is required for the hazard assessment of chemicals and products that may come into contact with the eye. Due to the potential for the suffering of animals and subjectivity of the test, many modifications of the method have been made that involved a reduction in the number of animals and a refinement of techniques. Additionally, there has been significant development of in vitro alternatives. This paper reviews recent advances in the in vivo test and in vitro alternatives, as well as regulatory requirements. While the refinement of in vivo protocols has resulted in a reduction in the number and discomfort on animals, the development of in vitro alternatives could lead to an eventual replacement of animal studies. In view of the inherent simplicity of many in vitro methods, some of which comprise cell cultures, further research into the relevance/mechanism of effects is required. Batteries of in vitro tests, when properly validated, may be considered as replacements for animal testing.

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Potential Herb-Drug Pharmacokinetic Interactions between African Wild Olive Leaf Extract and Selected Antihypertensive Drugs

Planta Medica ◽

10.1055/a-0583-0543 ◽

2018 ◽

Vol 84 (12/13) ◽

pp. 886-894

Author(s):

Katlego Mmopele ◽

Sandra Combrinck ◽

Josias Hamman ◽

Clarissa Willers ◽

Weiyang Chen ◽

...

Keyword(s):

Prescription Drugs ◽

Leaf Extract ◽

Antihypertensive Drugs ◽

Blood Levels ◽

Olive Leaf ◽

Leaf Extracts ◽

Olive Leaf Extract ◽

Wild Olive

AbstractThe African wild olive (Olea europaea subsp. africana) is traditionally used as a hypotensive agent. Herb-drug interactions may result from the concurrent use of herbal medicines and conventional prescription drugs. This aspect was investigated by determining the effect of the extract on the in vitro intestinal epithelial permeation of selected hypotensive drugs using the Caco-2 cell culture model. The phytochemical profiles of leaf extracts of African wild olive from different localities in South Africa were compared, since efficacy is determined by the chemical composition. Extracts were analysed using ultra-performance liquid chromatography. The oleuropein concentration varied considerably from below the detection limit (4.94 µg/mL) to 59.4 mg/g dry weight. Chemometric models constructed from the aligned chromatographic data indicated only quantitative differences between the profiles. The leaf extract was found to increase the permeability of propranolol in the absorptive direction (Papp = 8.93 × 10−6 cm/s) across Caco-2 cell monolayers, but considerably decreased transport in the secretory direction (Papp = 3.68 × 10−6 cm/s). The permeation of diltiazem was enhanced by the extract in both the absorptive (Papp = 7.33 × 10−6 cm/s) as well as in the secretory direction (Papp = 7.16 × 10−6 cm/s), but a decrease in the efflux ratio was observed. The extract therefore caused a net increase in the transport of both drugs in the absorptive direction due to an inhibition effect on their efflux. This suggests a potential increase in the blood levels of these drugs when taken simultaneously with African wild olive leaf extract, indicating potential adverse effects that must be verified in vivo.

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Anthelmintic effect of thymol and thymol acetate on sheep gastrointestinal nematodes and their toxicity in mice

Revista Brasileira de Parasitologia Veterinária ◽

10.1590/s1984-29612017056 ◽

2017 ◽

Vol 26 (3) ◽

pp. 323-330 ◽

Cited By ~ 21

Author(s):

Weibson Paz Pinheiro André ◽

Géssica Soares Cavalcante ◽

Wesley Lyeverton Correia Ribeiro ◽

Jessica Maria Leite dos Santos ◽

Iara Tersia Freitas Macedo ◽

...

Keyword(s):

Acute Toxicity ◽

Biological Effects ◽

Anthelmintic Activity ◽

Gastrointestinal Nematodes ◽

In Vitro Tests ◽

Egg Hatch ◽

In Vivo Test ◽

Anthelmintic Effect

Abstract Thymol is a monoterpene and acetylation form of this compound can reduce the toxicity and enhance its biological effects. The objective of this study was to evaluate the effect of thymol and thymol acetate (TA) on egg, larva and adult Haemonchus contortus and the cuticular changes, acute toxicity in mice and the efficacy on sheep gastrointestinal nematodes. In vitro tests results were analyzed by analysis of variance (ANOVA) and followed by comparison with Tukey test or Bonferroni. The efficacy of in vivo test was calculated by the BootStreet program. In the egg hatch test (EHT), thymol (0.5 mg/mL) and TA (4 mg/mL) inhibited larval hatching by 98% and 67.1%, respectively. Thymol and TA (8 mg/mL) inhibited 100% of larval development. Thymol and TA (800 µg/mL) reduced the motility of adult worms, by 100% and 83.4%, respectively. Thymol caused cuticular changes in adult worm teguments. In the acute toxicity test, the LD50 of thymol and TA were 1,350.9 mg/kg and 4,144.4 mg/kg, respectively. Thymol and TA reduced sheep egg count per gram of faeces (epg) by 59.8% and 76.2%, respectively. In in vitro tests thymol presented better anthelmintic activity than TA. However TA was less toxic and in in vivo test efficacy was similar.

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Anti-inflammatory potential of african leaf water extract

Journal of Agriculture and Applied Biology ◽

10.11594/jaab.01.02.02 ◽

2020 ◽

Vol 1 (2) ◽

pp. 46-53

Author(s):

Lusi Agus Setiani ◽

Zaldi Rusli

Keyword(s):

Leaf Extract ◽

Protein Denaturation ◽

Scientific Information ◽

Water Extract ◽

Inflammatory Activity ◽

In Vivo Test ◽

Flavonoid Compounds ◽

Anti Inflammatory

Inflammation is the immune system's main response to infection and irritation. African leaf (Gymnanthemum amygdalinum) is one of the medicinal plants that can be used as anti-inflammatory because of the presence of flavonoid compounds. Flavonoid compounds have an anti-inflammatory effect that can regulate arachidonic acid metabo-lism by inhibiting cyclooxygenase (COX) and lipooksigenase activi-ties. This study aims to obtain scientific information and the potential of African leaf extract as an anti-inflammatory in vitro and in vivo test. In this study, in vitro and in vivo anti-inflammatory activity tests were carried out. The in vitro anti-inflammatory activity was evaluated by the ability of African leaf extracts to prevent protein denaturation and in vivo anti-inflammatory activity by observing the reduction of edema in the soles of rats induced by carrageenan by giving three lev-els of doses of African leaf extract. The results showed that the African leaf extract at a concentration of 8273.91 mg L-1 was able to inhibit 50% denatured protein (IC50), while in the in vivo test African leaf had the potential as an anti-inflammatory with the most effective percent-age of inhibition at a dose of 200 mg kg-1 which is 85.20%. African leaf have the potential of approximately 2 times greater than the positive control of diclofenac sodium which is 45.70%.

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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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UTILIZATION OF SAMBUNG NYAWA LEAF EXTRACTS Gynura procumbens (Lour) Merr. FOR TREATMENT OF Vibrio alginolyticus IN TIGER GROUPER (Epinephelus fuscoguttatus Forsskal, 1775)

Berkala Perikanan Terubuk ◽

10.31258/terubuk.47.2.134-150 ◽

2019 ◽

Vol 47 (2) ◽

pp. 134

Author(s):

Novi Santika ◽

Wardiyanto Wardiyanto ◽

Esti Harpeni

Keyword(s):

Leaf Extract ◽

Sea Water ◽

Economic Value ◽

In Vitro Study ◽

Inhibitory Effect ◽

Vibrio Alginolyticus ◽

Leaf Extracts ◽

Tiger Grouper

Tiger Grouper is one of the sea water fish commodities that is quite popular with the community and has a high economic value. The problem faced by farmers is the attack of Vibriosis, one of which is caused by the Vibrio alginolyticus bacteria. The use of synthetic antibiotics has been widely used but has many adverse effects, so it needs new alternatives for the treatment of Vibriosis disease. One of them is by using the extract of lifelong leaf extract. Life-sustaining plants (Gynura procumbens) contain secondary metabolites such as flavonoids, tannins, and antibacterial saponins. This study aims to determine the best dosage of lifelong leaf extract for the treatment of Vibriosis disease in tiger grouper. The study was conducted in two stages, namely in vitro and in vivo. Before the fish were treated with feed that had been given a sambung deca leaf extract, the fish were challenged using Vibrio alginolyticus with a density of 108 CFU / mL as much as 0.1 mL / head and then fed with treatment and maintained for 21 days. The results of the in vitro study showed that the life of sambung leaf extract at a dose of 700 ppm had a broad inhibitory effect on V. alginolyticus, which amounted to 10.47 mm compared to other treatments. Whereas when continued for in vivo testing, a dose of 350 ppm in general has been applied for the treatment of attacks of Vibrio alginolyticus in tiger grouper.

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Haemostatic property of Chromolaena odorata leaf extracts: in vitro and in vivo evaluation in wistar rats

Journal of Biological Research - Bollettino della Società Italiana di Biologia Sperimentale ◽

10.4081/jbr.2016.6211 ◽

2016 ◽

Vol 89 (2) ◽

Author(s):

Henshaw Uchechi Okoroiwu ◽

Item Justin Atangwho ◽

Emmanuel Kufre Uko ◽

Okafor Ifeyinwa Maryann

Keyword(s):

Wistar Rats ◽

Ethanol Extract ◽

Dependent Manner ◽

Chromolaena Odorata ◽

Sample Collection ◽

Leaf Extracts ◽

In Vivo Evaluation ◽

Coagulation Study

This study was designed to investigate the effects of aqueous, ethanol and crude extracts of Chromolaena odorata leaf on haemostatic mechanism of wistar rats and its possible in vitro use in coagulation study. Fifty wistar rats of both sexes weighing between 140-180 g were sorted into 10 groups each fed via oral gavage once daily for 21 days. Sample collection was done by cardiac puncture. Bleeding and clotting times were performed using Duke’s and Ivy’s methods, respectively. The prothrombin time was performed using the Quick’s one stage method, while the partial thromboplastin time using kaolin was done using Macpherson and Hardity method using Giess diagnosis reagent. Significant results were observed in the bleeding and clotting times of the three extracts in a dose-dependent manner. The 300-mg/kg ethanol extract decreased the bleeding time more than the other two extracts. Only the ethanol 150 and 300 mg/mL showed in vitro activity. The study showed the in vivo haemostatic properties of Chromolaena odorata leaf extracts and its possible use in in vitro coagulation study.

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