scholarly journals UJI AKTIVITAS EKSTRAK ETANOL DAUN KARAMUNTING (Rhodomyrtus tomentosa.) TERHADAP PERTUMBUHAN BAKTERI Salmonella thypi

2020 ◽  
Vol 2 (2) ◽  
pp. 102-108
Author(s):  
Suci Wulandari ◽  
Chandra Pranata ◽  
Yanna Rotua Sihombing ◽  
Muhammad Hamim Nasution
Keyword(s):  
Infectious Disease ◽  
Typhoid Fever ◽  
Plant Material ◽  
Leaf Extract ◽  
Ethanol Extract ◽  
Phytochemical Screening ◽  
Paper Disk ◽  
Active Substances ◽  
Rhodomyrtus Tomentosa

Salmonella thypiis a bacterium that causes typhoid fever. Typhoid fever is an infectious disease that is still a health problem, especially in Indonesia. There are several studies on the types of plants that can control bacterial growth. Indonesian plants are often used as medicine, one of which is the karamunting (Rhodomyrtus tomentosa.). Traditionally a number of parasitic species have been used to prevent and treat various diseases such as cough, anticancer, diuretic, anti-inflammatory, antibacterial, wound or infection karamunting (Rhodomyrtus tomentosa.) Has active compounds such as flavonoids, alkaloids, tannins , saponins, and glycosides which have antibacterial abilities. The purpose of this study is to determine the inhibition of extract of karamunting (Rhodomyrtus tomentosa.) at concentrations of 5%, 10%, and 15%. Test samples using Salmonella thypi. This research is an experimental study with a design (posttest). The research methods included the collection of plant material, determination of plant material, making simplicia, phytochemical screening, making ethanol extract from simplicia by maceration, testing chemical compound groups, and antibacterial testing with paper disk diffusion methods. Karamunting is extracted by maceration process, using 70% ethanol solvent. The results of this study indicate that the benalu coffee leaf extract (Rhodomyrtus tomentosa.) has inhibitory capacity as an antibacterial in Salmonella thypi with a mean inhibition of 16.87 mm at a concentration of 5%, 17.24 mm at a concentration of 10%, and 18.21 mm at a concentration of 15%. The greatest inhibition is produced at a concentration of 15%, because the higher the concentration of the extract, the higher the diameter of the inhibition produced, because the more active substances contained in the extract.

scholarly journals KARAKTERISTIK DAN SKRINING FITOKIMIA EKSTRAK ETANOL 70% BATANG KEPUH (Sterculia foetida L.)

Jurnal Kimia ◽  
2019 ◽  
Vol 13 (1) ◽  
pp. 22
Author(s):  
N. P. S. E. Cahyani ◽  
J. Susiarni ◽  
K. C.S. Dewi ◽  
N. L.P. Melyandari ◽  
K. W.A. Putra ◽  
...  
Keyword(s):  
Moisture Content ◽  
Water Content ◽  
Ethanol Extract ◽  
Phytochemical Screening ◽  
Residual Solvent ◽  
Solvent Content ◽  
Residual Content ◽  
Ethanol Level ◽  
Anti Inflammatory

Kepuh (Sterculia foetida L) is a type of kapok plant that has been scientifically proven to have activity as an anti-inflammatory and analgesic. 70% ethanol extract of stem stem is obtained by maceration using 70% ethanol. Examination of the characteristics of 70% ethanol extract of kepuh stem included organoleptic, of moisture content and determination of residual solvent content. Phytochemical screening of 70% ethanol extract of kepuh bark includes: alkaloid, flavonoid, saponin, tannin , polyphenol, and examination of glycosides. The results of the examination of the characteristics of 70% ethanol extract of kepuh stem obtained water content of 8.66 ± 0.748%, the residual content of the solvent had a 0 (zero) ethanol level. The results of phytochemical screening showed 70% ethanol extract of stem stem containing steroid compounds, triterpenoids, flavonoids, saponins, tannins and polyphenols. The identification using UV-Vis spectrophotometry produced ? 212, the absorbance was 1.8601 and ? 284, the absorbance was 0.42186.

scholarly journals Ekstrak Etanol Daun Belimbing Wuluh (Averrhoa bilimbi) sebagai Antioksidan dan Antiinflamasi

2019 ◽  
Vol 8 (3) ◽  
pp. 86
Author(s):  
Hasim Hasim ◽  
Yupi Yulianita Arifin ◽  
Dimas Andrianto ◽  
Didah Nur Faridah
Keyword(s):  
Antioxidant Activity ◽  
Leaf Extract ◽  
Ethanol Extract ◽  
Total Phenolic ◽  
Phytochemical Screening ◽  
Phytochemical Compounds ◽  
Anti Inflammatory ◽  
Ethanol Extracts ◽  
Phenolic And Flavonoid

Belimbing wuluh merupakan tanaman jenis buah dan obat tradisional. Tanaman belimbing wuluh sudah sering dimanfaatkan masyarakat salah satunya untuk mengobati penyakit seperti batuk dan radang rektum. Tujuan penelitian ini adalah menguji senyawa fitokimia, menganalisis kandungan total fenolik dan flavonoid, serta aktivitas antioksidan dan antiinflamasi secara in vitro pada ekstrak etanol daun belimbing wuluh. Metode yang dilakukan pada penelitian ini adalah ekstraksi daun belimbing wuluh, skrining fitokimia, perhitungan total fenol dan flavonoid, uji aktivitas antioksidan, dan uji aktivitas antiinflamasi. Senyawa fitokimia yang terkandung pada ekstrak etanol daun belimbing wuluh adalah saponin, tanin, steroid, flavonoid, dan alkaloid. Kandungan total fenolik dan flavonoid ekstrak etanol daun belimbing wuluh secara berturut-turut sebesar 39,03 dan 97,28 µg QE/mg. Ekstrak etanol daun belimbing wuluh memiliki aktivitas antioksidan yang tergolong sangat kuat, sementara aktivitas antiinflamasinya terutama ditunjukkan pada konsentrasi ekstrak 200 µg/ ml, memiliki nilai persen inhibisi hemolisis yang paling tinggi. Kesimpulannya, ekstrak etanol daun belimbing wuluh dapat menjadi salah satu sumber antioksidan dan antiinflamasi alami.Ethanol Extracts of Averrhoa Bilimbi Leaf Demonstrated Antioxidative and Anti-inflammatory ActivityAbstractAverrhoa bilimbi, a fruit-bearing plant, has been traditionally used for medicinal purposes such as treatment of cough and rectal inflammation. In this current work, ethanol extract of Averrhoa bilimbi leaf was analyzed, with regard to phytochemical composition, i.e. total phenolic, and flavonoid, antioxidant activity, and in vitro antiinflammation activity. Extraction of carambola leaves, phytochemical screening, total phenolic and flavonoid contens, assay of antioxidant activity, and assay of anti-inflammatory activity were done in this research. As a result, the leaf extract positively contained some phytochemical compounds, i.e. saponin, tannin, steroid, flavonoid, and alkaloid. Furthermore, total phenolic and flavonoid of the leaf extract was found at 39.03 and 97.28 µg QE/mg extract, respectively. Additionally, antioxidant activity of the leaf extract was classified as very strong, while its anti-inflammatory feature at extract concentration of 200 µg/ml exhibited the highest inhibition of hemolysis. In summary, the ability of Averrhoa bilimbi leaf ethanol extracts to act as antioxidative and anti-inflammatory agents was determined and this may open the use for natural antioxidant and anti-inflammatory agents.

scholarly journals UJI AKTIVITAS ANTIOKSIDAN DARI EKSTRAK ETANOL DAUN Mimosa pudica Linn. MENGGUNAKAN METODE DPPH

PHARMACON ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 106
Author(s):  
Wulan Wulan ◽  
Adithya Yudistira ◽  
Henki Rotinsulu
Keyword(s):  
Vitamin C ◽  
Leaf Extract ◽  
Ethanol Extract ◽  
Positive Control ◽  
Antioxidant Compounds ◽  
Phytochemical Screening ◽  
Mimosa Pudica ◽  
Average Percentage ◽  
Dpph Method ◽  
High Antioxidant Activity

ABSTRACT Antioxidant are compounds that can inhibit the oxidation rate of other molecules or neutralize free radicals. Putri Malu Leaf (Mimosa pudica Linn.) is not yet widely known as a medicinal plant. Through phytochemical screening, Mimosa pudica Linn. leaves known to have antioxidant compounds such as flavonoids, alkaloids, terpenoids, saponins and coumarin. This study aims to determine how much the antioxidant content in the extract of Mimosa pudica Linn. leaves using DPPH method with a concentration of 100 mg/L, 75 mg/L, 50 mg/L and 25 mg/L and Vitamin C as a positive control. Each sampel was made three repetitions of the test. The test uses a UV-Vis Spectrophotometer. The highest results were obtained from the concentration of 100 mg/L in the second repetition of 89.74%. The highest average percentage  of yield obtained is at a concentration of 100 mg/L. Based on the result obtained from Mimosa pudica Linn. leaf extract seems like that the ethanol extract of Mimosa pudica Linn. leaves has high antioxidant activity. Keywords: Antioxidant, DPPH, Mimosa pudica Linn.  ABSTRAK Antioksidan  ialah senyawa yang mampu menghambat laju oksidasi molekul lain atau menetralisir radikal bebas. Daun Putri Malu (Mimosa pudica Linn.) belum dikenal luas sebagai tanaman obat.Melalui skrining fitokimia, daun Mimosa pudica Linn.diketahui memiliki senyawa antioksidan seperti flavonoid, alkaloid, terpenoid, saponin dan kumarin. Penelitian ini bertujuan untuk mengetahui seberapa besar kandungan antioksidan didalam ekstrak tanaman daun Mimosa pudica Linn.menggunakan metode DPPH dengan konsentrasi 100 mg/L, 75 mg/L, 50 mg/L dan 25 mg/L dan Vitamin C sebagai kontrol positif. Masing-masing sampel dibuat tiga kali pengulangan uji.Pengujian menggunakan alat Spektrofotometer UV-Vis. Terlihat hasil tertinggi diperoleh dari konsentrasi 100 mg/L pada pengulangan ke-II yaitu sebesar 89,74%. Rata-rata persentase hasil yang diperoleh tertinggi ialah pada konsentrasi 100 mg/L. Berdasarkan hasil yang diperoleh dari ekstrak daun Mimosa pudica Linn.terlihat bahwa ekstrak etanol daun Mimosa pudica Linn. memiliki aktivitas antioksidan yang tinggi.  Kata Kunci : Antioksidan, DPPH,Mimosa pudica Linn.

scholarly journals In Vitro Determination of SunProtective Factor (SPF) of Dadap Serep (Erythrina Subumbrans (Haks.) Merr.) Leaf Extract Using Spectrophotometric Method

2019 ◽  
Vol 1 (1) ◽  
pp. 64-67
Author(s):  
Indri Maharini
Keyword(s):  
Bioactive Compounds ◽  
Spectrophotometric Method ◽  
Leaf Extract ◽  
Protective Factor ◽  
Ethanol Extract ◽  
Flavonoid Compounds

Dadap serep (Erythrina Subumbrans Haks Merr) contains bioactive compounds of flavonoids, saponins, isoflavones, alkaloids, and lectins. Flavonoid compounds have a sunscreen effect. This studyaimed to determinethe value of Sun Protective Factor (SPF) using spectrophotometry method with variations in the extract concentrations, such as500 ppm,750 ppm, and 1000 ppm.The results showed that the SPF values of each concentration were11.47 ±0.583335, 17.05 ± 0.898838,21.93 ± 0.791557, respectively. In conclusion, the ethanol extract of dadap serep hastheability to become sunscreen in the maximal and ultra category.

scholarly journals Test Activities Antibakteriekstrak Ethanol Young And Old Leaves Of The Soursop(Annonamuricata L.) Against Staphylococcus aureus

2018 ◽  
Vol 1 (2) ◽  
pp. 135-143 ◽  
Author(s):  
Dwi Latifah Sari ◽  
Sudarmi Sudarmi ◽  
Popi Patilaya
Keyword(s):  
Staphylococcus Aureus ◽  
Antibacterial Activity ◽  
Leaf Extract ◽  
Skin Diseases ◽  
Ethanol Extract ◽  
Positive Control ◽  
Annona Muricata ◽  
Phytochemical Screening ◽  
Activity Test ◽  
Young Leaves

Soursop (Annona muricata L.) has been used for generations by some communities in Indonesia to treat diseases. Soursop leaves are used as an alternative treatment for cancer, by boiling them in the water and consuming it. In addition to the treatment of cancer, soursop plant is also used for the treatment of skin diseases such as boils. This study aimed to determine the antibacterial activity of ethanol extract of soursop leaves of young and old against Staphylococcus aureus, determine the content of secondary metabolites, and find out the diameter of inhibitory young leaves and old leaves of soursop in inhibiting Staphylococcus aureus. Soursop leaves were extracted by maceration using ethanol 96%. The extract obtained was then carried out to phytochemical screening. Antibacterial activity test was conducted using disc the Kirby-Bauerdiffusion. This study used 6 concentrations of 500 mg/mL, 400 mg/mL, 300 mg/mL, 200 mg/mL, 100 mg/mL, 80 mg/mL, 60 mg/mL, 40 mg/mL, 20 mg/mL, 10 mg/mL and 1 mg/mL. A positive control used soursop leaf extract of young and old while a negative one used DMSO 10%. Based on phytochemical screening, ethanol extract of soursop leaves contained alkaloids, flavonoids, saponins, tannins, steroids/triterpenoids and glycosides. The antibacterial activity of ethanol extract of leaves of young soursop was higher in inhibitory diameter than the ethanol extract of old soursop leaves. It could be seen that a concentration of 500 mg/mL was equal to 10.87 mm and 8.68 mm; a concentration of 400 mg/mL was equal to 9.15 mm and 7.3 mm; a concentration of 300 mg/mL was equal to 8.34 mm and 6.30 mm; a concentration of 200 mg/mL was equal to 8.23 mm and 7.08 mm; a concentration of 100 mg/mL was equal to 6.32 mm and 6.18 mm, and a concentration of 80 mg/mL did not leave a diameter inhibitory to bacteria Staphylococcus aureus. Young soursop leaf ethanol extract was more effective than the old soursop one against Staphylococcus aureus.

scholarly journals Determination of Quality Parameters and Antioxidant Activity of Cincau Hijau Leaves (Cyclea barbata L.Miers.)

2017 ◽  
Vol 15 (2) ◽  
pp. 236
Author(s):  
Erlindha Gangga ◽  
Rani Purwati ◽  
Yunahara Farida ◽  
Kartiningsih Kartiningsih
Keyword(s):  
Antioxidant Activity ◽  
Heavy Metal Contamination ◽  
Radical Scavenging ◽  
Ethanol Extract ◽  
Ash Content ◽  
Water Soluble ◽  
Phytochemical Screening ◽  
Water Soluble Compound ◽  
Dpph Method

Cincau Hijau leaves (Cyclea barbata L.Miers ) has been used empirically as a medicinal plant because it contains many potential compounds such as flavonoids. Cincau Hijau leaves has been known as antioxidant activity. Determination of pharmacognosy parameters and phytochemical screening of dry leaves and extracts have been carried out as well as determination of total fl avonoids content. Fresh leaves were extracts with water and Dry leaves were macerated with 96% ethanol and were then concentrated by rotavapor to obtain viscous extracts. Free radical scavenging activity of the extracts was evaluated using DPPH method. Afterwards, determination of specifi c and non-specifi c parameters were performed. Results of phytochemical screening of powder and 50% and 96% ethanol extract showed that tall the tested samples contained alkaloid, fl avonoids, saponins, tannins, steroids/ triterpenoids, coumarin. The examination of specifi c parameter showed that the extract has a thick consistency, tawny color, bitter taste, characteristic odor. In addition, water-soluble compound and 96% ethanol extract are 46.64 and 62.13% respectively whereas ethanol-soluble compounds are 39.22 and 74.72%, respectively. While the results of nonspecifi c parameters of 50% and 96 % ethanol extract displayed total ash content of 9.69 and 9.49%, respectively, acid insoluble ash content of 0.30 and 0.16%, respectively, content of water soluble ash of 9.17 and 4.30%, respectively, loss on drying of 9.35 and 8.9%, respectively, water content of 8.45 and 7.25%, respectively. Based on heavy metal contamination, Pb concentration in 50 and 96% ethanol extract are 0.0227 and 0.0333 mg/kg, respectively whereas Cd concentration are 0.1206 and 0.0022 mg/kg, respectively and total number of CFU of 4,22 x 103 and 2,30 x 103 colonies/g, respectively while molds and yeasts number of colony of 0,48 x 102 and 8,88 x 102 colonies/g, respectively. Moreover, the total flavonoid was 0,19 %. Result of DPPH inhibition test showed that IC50 96 % ethanol extract are 83,280 ppm and water extracts are 102,01 ppm

scholarly journals Efektivitas Antifungi Ekstrak Daun Patikan Kebo (Euphorbia hirta) Terhadap Jamur Penyebab Kandidiasis (Candida albicans)

2019 ◽  
Vol 2 (1) ◽  
pp. 22
Author(s):  
Zulkarnain Zulkarnain ◽  
Cut Muthiadin ◽  
Fatmawati Nur ◽  
Rusmadi Rukmana
Keyword(s):  
Infectious Disease ◽  
Candida Albicans ◽  
Leaf Extract ◽  
Microbial Growth ◽  
Inhibition Zone ◽  
Euphorbia Hirta ◽  
Randomized Design ◽  
Paper Disk ◽  
Significant Difference ◽  
Completely Randomized Design

<em>Candidiasis is an infectious disease caused by the fungus Candida albicans. This  study aims to determine the effect of patikan kebo (Euphorbia hirta) leaf extract in inhibiting the growth of C. albicans. This research is an experimental study which was compiled using a Completely Randomized Design (CRD) by giving Patikan Kebo (E. hirta) leaf extract  in several concentrations, the concentrations of 40%, 45%, 50%, 55%, and 60% and controls (aquadest) and C. albicans mushroom with three repetitions. The parameters measured are the amount of inhibitory diameter formed around the paper discs in the 24 hour and 48 hour period. D ata obtained with three repetitions and observations of 24 hours and 48 hours showed that giving patikan kebo leaf extract in several types of concentration had an effect on inhibiting the growth and fungi of C . albicans. Furthermore, the data obtained were analyzed using analysis of variance (F-test) at the level of α 0.05 and continued using the Smallest Significant Difference (LSD) α 0.05 where the results showed that the giving of patikan kebo extract significantly affected the microbial growth test (C. albicans), where the higher the concentration of patikan kebo leaf extract, the greater the inhibition zone formed around the paper disk. </em>

scholarly journals PENETAPAN RENDEMEN EKSTRAK DAUN JAMBU MAWAR (Syzygium jambos L. Alston) BERDASARKAN VARIASI KONSENTRASI ETANOL DENGAN METODE MASERASI

2020 ◽  
Vol 2 (3) ◽  
pp. 147-157
Author(s):  
Eka Siswanto Syamsul ◽  
Olanda Anugerah ◽  
Risa Supriningrum
Keyword(s):  
Ethanol Concentration ◽  
Ethanol Extract ◽  
Test Results ◽  
Phytochemical Screening ◽  
Sample Collection ◽  
Syzygium Jambos ◽  
Significant Difference ◽  
Ethanol Extracts ◽  
Guava Leaf

Syzygium jambos is a medicinal plant. This study aims to determine the effect of variations in ethanol concentration on yield of guava leaf extract by maceration method. The research conducted was experimental research. The research phase includes sample collection, determination, manufacture of simplicia, extraction by maceration with variations in ethanol concentration, determination of yield, phytochemical screening and determination of drying losses. Phytochemical screening results showed that 50% of ethanol extracts of positive rose guava contained flavonoids, tannins, saponins and steroids / terpenoids, 70% ethanol and 90% positives contained flavonoids, tannins and steroids / terpenoids. The yield of rose guava ethanol extract was 50% (23.01% ± 0.372), 70% ethanol (21.96% ± 1.181) and 90% ethanol (16.57% ± 0.384). LSD test results showed a significant difference (p <0.05) between the 90% to 50% and 70% groups.

MICROSCOPIC AND PHYTOCHEMICAL EVALUATION OF CALOTROPIS GIGANTEA

INDIAN DRUGS ◽  
2017 ◽  
Vol 54 (06) ◽  
pp. 65-68
Author(s):  
N. K Choudhary ◽  
◽  
S. Sharma ◽  
S. Goyal ◽  
J. Dwivedi
Keyword(s):  
Ethanol Extract ◽  
Chloroform Extract ◽  
Water Soluble ◽  
Phytochemical Screening ◽  
Phytochemical Study ◽  
Calotropis Gigantea ◽  
Traditional System ◽  
Microscopic Evaluation

In traditional system of medicine, Calotropis gigantea (Akra) has been used for treatment of various diseases. Since, there is no proper information regarding pharmacognostic parameters of flowers of this plant, our efforts were devoted to study the microscopical characters and phytochemical study of flowers of this plant. Microscopic evaluation of gynostegium, sepal/ calyx, petal, ovary and pedicel were undertaken, determination of ash and extractive values, phytochemical screening and TLC for presence of triterpenoids. The microscopic characterization of the parts of the flower i.e. gynostegium, sepal/ calyx, petal, ovary and pedicel of Calotropis gigantea was performed. The physicochemical characterization‘s gave ash values (total ash: 18.60; acid insoluble ash: 5.46; water soluble ash; 13.50) and extraction with petroleum ether, chloroform and 90% ethanol extract gave 2.4, 3.9 and 2.1% w/w, respectively. TLC of chloroform extract showed the presence of triterpenoids. The microscopic study of the flower of Calotropis gigantea give us the foot prints for further study with the presence of triterpenoids in the flowers.

scholarly journals Analisis Senyawa Metabolit Sekunder dan Uji Toksisitas Ekstrak Batang Bawang Laut (Proiphys amboinensis (L.) Herb.)

Jurnal MIPA ◽  
2014 ◽  
Vol 3 (2) ◽  
pp. 144
Author(s):  
Chendy Christy Dapas ◽  
Harry S. J. Koleangan ◽  
Meiske S. Sangi
Keyword(s):  
Secondary Metabolites ◽  
Brine Shrimp ◽  
Ethanol Extract ◽  
Artemia Salina ◽  
Phytochemical Screening ◽  
Steroid Saponin ◽  
Brine Shrimp Lethality ◽  
Probit Method ◽  
Dried Extract

Telah dilakukan penelitian mengenai analisis senyawa metabolit sekunder dan uji toksisitas pada batang tanaman bawang laut (Proiphys amboinensis (L.) Herb.) Analisis senyawa metabolit sekunder dilakukan dengan skrining fitokimia untuk senyawa alkaloid, flavonoid, triterpenoid, steroid, saponin dan tanin pada ekstrak batang tanaman bawang laut segar dan kering dan selanjutnya dianalisis menggunakan spektrofotometer UV-VIS. Penentuan toksisitas ekstrak batang tanaman bawang laut menggunakan metode Brine Shrimp Lethality Test (BSLT) dengan hewan uji Artemia salina Leach sebagai bioindikator. Pada skrining fitokimia diperoleh flavonoid dan  steroid positif sedangkan alkaloid, saponin triterpenoid dan tanin negatif. Analisis spektofotometer UV-VIS ekstrak etanol menunjukkan puncak serapan pada 304,40 dan  284,50 nm. Data pengujian toksisitas diperoleh dari analisis Lethality Concentration 50 (LC50) yang dilakukan dengan  metode probit menggunakan perangkat lunak SPSS 20. Hasil uji toksisitas ekstrak batang tanaman bawang laut menunjukkan bahwa  ekstrak segar maupun kering bersifat sangat toksik dengan nilai LC50 kurang dari 30 ppm, yaitu: 9,978 ppm untuk batang kering dan 3,980 ppm untuk batang segar.A research has been done on the analysis of secondary metabolites and toxicity examination on the stems of the sea onion (Proiphys amboinensis (L.) Herb.). Analysis of secondary metabolites carried out with the phytochemical screening for alkaloid compounds, flavonoids, triterpenoids, steroids, saponins, and tannins in extracts of fresh and dried stems of the sea onion, then analyzed using UV-VIS spectrophotometer. The toxicity determination of stems extract of the sea onion plant was done by using Brine Shrimp Lethality Test (BSLT) with Artemia salina Leach as bioindicator. Phytochemical screening showed positive test for flavonoids and steroids while alkaloids, saponins, triterpenoids, and tannins were negative. UV-VIS  spectrophotometer analysis on ethanol extract showed peaks at 304,40 and 284,50 nm. Data of the toxicity examination was obtained from the analysis of Lethality Concentration 50 (LC50) which were performed with the probit method using SPSS 20. Results of toxicity examination of sea onion stems extract showed that fresh or dried extract are very toxic with LC50 values ​​of less than 30 ppm, namely: 9,978 ppm for fresh stems and 3,980 ppm for dried stems.

Sign in / Sign up

Export Citation Format

Share Document