Penapisan Fitokimia dan Uji Aktivitas Antimikroba Ekstrak Etanol Daun Jeruk Nipis (Citrus Aurantifolia)

Jeruk nipis (Citrus aurantifolia S.) merupakan salah satu tanaman obat tradisional yang digunakan secara luas untuk berbagai penyakit termasuk infeksi. Penelitian ini bertujuan untuk menguji aktivitas ekstrak etanol 70% dan 96% daun Citrus aurantifolia terhadap mikroba penyebab infeksi pada manusia, antara lain Staphylococcus aureus, Salmonella typhi, Escherichia coli, dan Candida albicans secara in vitro. Penapisan fitokimia dilakukan untuk memprediksi metabolit sekunder yang berperan dalam aktivitas antimikroba daun Citrus aurantifolia. Aktivitas antimikroba ditentukan menCitrus aurantifolia S. is a traditional medicinal plant that is widely used for various diseases including infections. This study aims to test the in vitro antimicrobial activity of 70% and 96% ethanolic extract of Citrus aurantifolia leaves to microbes that cause infection in humans, including Staphylococcus aureus, Salmonella typhi, Escherichia coli, and Candida albicans. Phytochemical screening was carried out to predict secondary metabolites that play a role in the antimicrobial activity of Citrus aurantifolia leaves. The antimicrobial activity was determined using agar diffusion method with disc paper and well diffusion method. Phytochemical screening showed that simplicia powder, 70% ethanol extract, and 96% ethanol extract from Citrus aurantifolia leaves contained flavonoids, coumarin, saponins, tannins, steroids / triterpenoids, and essential oils. This study showed that 70% and 96% ethanol extract of Citrus aurantifolia leaves can inhibit the growth of Staphylococcus aureus, Salmonella typhi, and Escherichia coli bacteria. It can be concluded that the ethanol extract of Citrus aurantifolia leaves is potential to be developed as an antibacterial product.ggunakan metode difusi agar dengan kertas cakram dan metode difusi sumuran. Penapisan fitokimia menunjukkan bahwa baik serbuk simplisia, ekstrak etanol 70%, dan ekstrak etanol 96% dari daun Citrus aurantifolia mengandung metabolit sekunder flavonoid, kumarin, saponin, tanin, steroid/triterpenoid, dan minyak atsiri. Ekstrak etanol 70% dan 96% daun Citrus aurantifolia dapat menghambat pertumbuhan bakteri Staphylococcus aureus, Salmonella typhi, dan Escherichia coli. Dengan demikian dapat disimpulkan ekstrak etanol daun Citrus aurantifolia berpotensi dikembangkan sebagai produk antibakteri.  Jeruk nipis (Citrus aurantifolia S.) merupakan salah satu tanaman obat tradisional yang digunakan secara luas untuk berbagai penyakit termasuk infeksi. Penelitian ini bertujuan untuk menguji aktivitas ekstrak etanol 70% dan 96% daun Citrus aurantifolia terhadap mikroba penyebab infeksi pada manusia, antara lain Staphylococcus aureus, Salmonella typhi, Escherichia coli, dan Candida albicans secara in vitro. Penapisan fitokimia dilakukan untuk memprediksi metabolit sekunder yang berperan dalam aktivitas antimikroba daun Citrus aurantifolia. Aktivitas antimikroba ditentukan menggunakan metode difusi agar dengan kertas cakram dan metode difusi sumuran. Penapisan fitokimia menunjukkan bahwa baik serbuk simplisia, ekstrak etanol 70%, dan ekstrak etanol 96% dari daun Citrus aurantifolia mengandung metabolit sekunder flavonoid, kumarin, saponin, tanin, steroid/triterpenoid, dan minyak atsiri. Ekstrak etanol 70% dan 96% daun Citrus aurantifolia dapat menghambat pertumbuhan bakteri Staphylococcus aureus, Salmonella typhi, dan Escherichia coli. Dengan demikian dapat disimpulkan ekstrak etanol daun Citrus aurantifolia berpotensi dikembangkan sebagai produk antibakteri

An ethnopharmacology study of Indonesian medicinal plants in Gunung Sari village as dipeptidyl peptidase-IV inhibitor

During an ethnopharmacology study of traditional antidiabetic treatment in Gunung Sari village, Bogor region, Indonesia, fifteen traditional medicinal plants were selected, collected and prepared as crude extracts. Among fifteen plants, only three plants have previously been screened for dipeptidyl peptidase-IV (DPP-IV) inhibitors. Quantitative phytochemical analysis revealed total phe- nolics content (TPC) ranging from 2.27±0.16 to 5.39±0.05 mg GAE/g extract and total alkaloids content (TAC) from 1.07±0.02 to 4.33±0.07 mg QE/g extract. In-vitro DPP-IV inhibitory activity screening showed that Piper ornatum exhibited the highest inhibition (78.11±1.35 %) and the lowest activity by Syzygium polyanthum (34.30±1.57%) at a concentration of 250 μg/mL, respectively. Anal- ysis of chemical constituents using liquid chromatography-high resolution mass spectrometry (LC-HRMS) indicated at least eleven compounds were present in the crude extract. Among them, several peaks were tentatively assigned as pipcrosides and crocatins, which have previously been isolated from Piper crocatum

STANDARDIZATION AND A-GLYCOSIDASE INHIBITION OF EXTRACTS AND NANOPARTICLE EXTRACT OF KEMBANG BULAN LEAVES (TITHONIA DIVERSIVOLIA (HAMSLEY) A. GRAY)

Objective: The purpose of this study was the determination of the quality parameters of the antidiabetic activity of 70% ethanol extract and Kembang Bulan leaf nanoparticle extract. Methods: Kembang Bulan powder was macerated kinetic with 70% ethanol, evaporated until a thick extract was obtained using a rotary evaporator, then specific and non-specific parameters were determined, and phytochemical screening was done. The extract was tested for anti-diabetic activity in vitro using the α-glucosidase enzyme. Results: Phytochemical screening results show the presence of flavonoids, saponins, tannins, essential oils, coumarin, steroids, and triterpenoids. The results of quality parameter examination showed that the extract had a thick consistency, blackish-brown color, aromatic odor, 75.20% dissolved compound and 71.97% dissolved compound in ethanol, 9.65% drying shrinkage, 8.73% moisture content, the remaining solvent is 0.43%, the total ash content is 7.12%, the acid insoluble ash content is 0.93%, the Pb level is 0.1167 mg/kg BW, the Cd level is 0.0620 mg/kg BW, the ALT microbial contamination is 0.6827x and Mold and yeast contamination 0.156x. Total flavonoid levels were 1.15%. Conclusion: The test results can be concluded that the 70% ethanol extract and nanoparticle extracts from Kembang Bulan leaves can inhibit the activity of the αglucosidase enzyme and the inhibitory results obtained by the nanoparticle extract are greater than the 70% ethanol extract

An ethnopharmacology study of Indonesian medicinal plants in Gunung Sari village as dipeptidyl peptidase-IV inhibitor

During an ethnopharmacology study of traditional antidiabetic treatment in Gunung Sari village, Bogor region, Indonesia, fifteen traditional medicinal plants were selected, collected and prepared as crude extracts. Among fifteen plants, only three plants have previously been screened for dipeptidyl peptidase-IV (DPP-IV) inhibitors. Quantitative phytochemical analysis revealed total phenolics content (TPC) ranging from 2.27±0.16 to 5.39±0.05 mg GAE/g extract and total alkaloids content (TAC) from 1.07±0.02 to 4.33±0.07 mg QE/g extract. In-vitro DPP-IV inhibitory activity screening showed that Piper ornatum exhibited the highest inhibition (78.11±1.35 %) and the lowest activity by Syzygium polyanthum (34.30±1.57%) at a concentration of 250 µg/mL, respectively. Analysis of chemical constituents using liquid chromatography-high resolution mass spectrometry (LC-HRMS) indicated at least eleven compounds were present in the crude extract. Among them, several peaks were tentatively assigned as pipcrosides and crocatins, which have previously been isolated from Piper crocatum

Penelitian Terbaru terhadap 3 (Tiga) Jenis Ekstrak Teripang di Pulau Tegal Mas, Lampung

Sea cucumbers are deep-sea-dwelling invertebrate animals that are rich in nutrients and have been empirically used to prevent various degenerative diseases, especially due to their ability to dampen free radicals. The purpose of this study was to identify, and determine antioxidant activity, total phenolic content, and toxic properties in extracts of several sea cucumber species originating from Tegal Mas Island, Lampung. The identification results of the three sea cucumber species were Stichopus vastus Sluiter (SV), Stichopus monotuberculatus Quay & Gaimard (SM), and Stichopus quadrifasciatus Massin. (SQ). The extraction was performed by kinetic maceration against all parts of the sea cucumber using a 70% ethanol solvent. Antioxidant activity test using the DPPH (2,2-diphenylpicrilhydrazyl) free radical suppression method and determination of the total phenolic content using the Folin-Ciocalteu method. The results showed that SV had the highest total phenolics and antioxidants with the lowest toxicity. However, optimisation of extraction between wet and dry sea cucumbers is still required. Extraction optimisation with various solvents can also be done to gain secondary metabolites more effectively.Teripang merupakan hewan invertebrata penghuni laut dalam yang kaya akan nutrien dan sudah secara empirik digunakan untuk mencegah berbagai penyakit degeneratif. Teripang berpotensi untuk dikembangkan dalam bidang kesehatan, terutama dalam kemampuannya untuk meredam radikal bebas. Tujuan dari penelitian ini yaitu untuk mengidentifikasi, menentukan aktivitas antioksidan, kandungan total fenol, dan sifat toksisitas pada ekstrak beberapa spesies teripang yang berasal dari Perairan Tegal Mas, Lampung. Hasil identifikasi dari ketiga spesies teripang adalah Stichopus vastus Sluiter (SV), Stichopus monotuberculatus Quay & Gaimard (SM), dan Stichopus quadrifasciatus Massin (SQ). Ekstraksi dilakukan dengan teknik maserasi kinetik terhadap semua bagian teripang menggunakan pelarut etanol 70%. Uji aktivitas antioksidan menggunakan metode peredaman radikal bebas DPPH (2,2-difenil-pikrilhidrazil). Penentuan total fenolik menggunakan metode Folin-Ciocalteu. Uji toksisitas dilakukan menggunakan metode Brine Shrimp Lethality Test (BSLT). Hasil menunjukkan bahwa SV memiliki total fenolik dan antioksidan tertinggi dengan toksisitas yang terendah. Namun demikian, diperlukan optimasi ekstrasi antara teripang basah maupun kering serta variasi pelarut untuk mendapatkan metabolit sekunder lebih efektif

Quality control standardization of Indonesian noni fruit (Morinda citrifolia) extract and evaluation of their angiotensin-converting enzyme inhibitory activity

Morinda citrifolia fruit (Noni) has been used as a folk medicine in several countries. Noni possessed various pharmacological activities such as; anticancer, antidiabetic, antihypertensive, antarthritic, and antioxidants. The present study evaluated pharmacognostic properties, profiling of active constituent through High-Performance Thin Layer Chromatography (HPTLC) and Liquid Chromatography-High Resolution Mass Spectrometer (LC-HRMS) run for quantitative and qualitative phytochemical analysis and determining angiotensin-converting enzyme (ACE) inhibitor activity of Noni from three different locations. The physicochemical parameters of crude drugs and extracts met the requirement of Indonesian Herbal Pharmacopeia. Total phenol content was 2.16-3.08 mg GAE/g extract and total flavonoid content was 0.11 - 1.58 mg QE/g extract. HPTLC analysis revealed that scopoletin content in Noni was in the range of 0.44 - 0.51%. The results were also corresponding well with LC-HRMS fingerprint analysis. In addition, Noni fruit extract from Bogor potential exhibited activity in inhibiting ACE with an IC50 value of 206.26 µg/mL

Silver nanoparticles biogenically synthesised using Maclurodendron porteri extract and their bioactivities

Silver nanoparticle is widely used in various field including medical, cosmetic, food and industrial purposes due to their unique properties in electrical conductivity, thermal, and biological activities. In the medical field, silver nanoparticles (AgNPs) have been reported to have strong antimicrobial and cytotoxic activities. This study aimed to synthesize and characterize silver nanoparticles (AgNPs) using Maclurodendron porteri (MP) extract and to evaluate the antimicrobial and cytotoxic activities of the synthesised MP-AgNPs. Green method of Ultrasound Assisted Extraction (UAE) was used to extract the leaves of M. porter. Liquid Chromatography -Mass Spectrometry/Quadrupole time-of-flight (LC-MS/QTOF) was used to identify the compounds in the leaf extract of M. porteri. Characterisation of the synthesised nanoparticles involved ultraviolet–visible (UV–Vis), Fourier Transform Infrared (FTIR), scanning electromagnetic microscopy (SEM), Zeta potential Analyzer and Particle Size Analyzer. The cytotoxic assay was conducted on MCF-7 and Caco-2 cell lines by MTT assay. Antimicrobial activity was tested on Gram-negative and Gram-positive bacteria using the disc diffusion method. Based on LC-MS/QTOF analysis, 430 compounds were found. The identified major compounds consist of amino acids, polyphenols, steroids, terpenoids and heterocyclic compounds which possibly act as reducing agents. 1 mM, 5 mM and 10 mM of silver nitrate solution were mixed with the leaf extract to form silver nanoparticles. 1.2 mg/ml of MP-AgNPs were found to have antibacterial activity against B. subtilis, S. aureus, E. coli, and P. aeruginosa with inhibitory zones of 8.0 ± 0.36 mm, 8.5 ± 0.45 mm, 7.5 ± 0.36 mm, and 9.0 ± 0.40 mm respectively. MP-AgNPs showed no cytotoxic activity against Caco-2 and MCF-7 cells. In conclusion, the presence of major amine compounds such as 10,11-dihydro-10,11-dihydroxyprotriptyline and harderoporphyrin in the extract facilitated the synthesis of AgNPs and the nanoparticle showed weak bioactivities in the assay conducted