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Full-Text Articles in Natural Products Chemistry and Pharmacognosy

Optimization Of Formula, Stability Testing, And Antioxidant Activity Of Clay Masks As Skin Moisturizers, Naniek Widyaningrum, Agung Dwi Anggoro Bhakti, Alghafiqy Harya Evan Maulana, Amalia Safitri, Adinda Fajrah Ramadhani, Anisa Febriani, Anggit Naufal Hanafi, Thendi Abdul Arief Jul 2025

Optimization Of Formula, Stability Testing, And Antioxidant Activity Of Clay Masks As Skin Moisturizers, Naniek Widyaningrum, Agung Dwi Anggoro Bhakti, Alghafiqy Harya Evan Maulana, Amalia Safitri, Adinda Fajrah Ramadhani, Anisa Febriani, Anggit Naufal Hanafi, Thendi Abdul Arief

Pharmaceutical Sciences and Research

Clay masks are cosmetic formulations designed to adhere closely to the skin, effectively lifting contaminants, cleansing the face, and absorbing impurities. We made a clay mask containing active ingredients such as niacinamide, alpha arbutin, ceramide, and hyaluronic acid. A careful selection of ingredients is essential for ensuring safety and mitigating potential dermatological issues. This study aimed to evaluate the physical characteristics, stability, primary irritation potential, and moisturizing efficacy of this clay mask formulation. Kaolin and bentonite are the primary base materials. The research included formulation optimization and physical stability testing using a cycling test, where each cycle was conducted over …


Investigating The Bioactivity Potential And Standardization Of Two Stingless Bee Propolis From East Kalimantan, Paula Mariana Kustiawan, Muhammad Ali Syahbana, Rika Pratika, Muhammad Nor Ichsan, Ika Ayu Mentari, Indah Hairunnisa, Irfan Muris Setiawan, Putri Hawa Syaifie, Donny Ramadhan, Chanpen Chanchao Dec 2024

Investigating The Bioactivity Potential And Standardization Of Two Stingless Bee Propolis From East Kalimantan, Paula Mariana Kustiawan, Muhammad Ali Syahbana, Rika Pratika, Muhammad Nor Ichsan, Ika Ayu Mentari, Indah Hairunnisa, Irfan Muris Setiawan, Putri Hawa Syaifie, Donny Ramadhan, Chanpen Chanchao

Pharmaceutical Sciences and Research

The standardization of raw materials from nature is essential before they are made into products. Until now, there is still limited information regarding the standardization of propolis from stingless bees. This research aims to determine the bioactivity with standardized specific and non-specific parameters of ethanol extracts from Homotrigona apicalis and Homotrigona fimbriata propolis. The methods include organoleptic tests, tests for water-soluble and ethanol-soluble compound content, drying shrinkage tests, specific gravity tests, water content tests, metal contamination tests, phytochemical screening, and determining total phenolic and flavonoid content. The free radical scavenging capacity was measured using the DPPH (1,1-diphenyl-2-picrylhydrazyl) method, and antimicrobial …


Microencapsulation Of Cosmos Caudatus Kunth Extract Using Sodium Alginate And In Vitro Antioxidant Activity Test, Safina Samara Nur Fadlila, Oktavia Eka Puspita, Zubaidah Ningsih, Anna Safitri Jun 2024

Microencapsulation Of Cosmos Caudatus Kunth Extract Using Sodium Alginate And In Vitro Antioxidant Activity Test, Safina Samara Nur Fadlila, Oktavia Eka Puspita, Zubaidah Ningsih, Anna Safitri

Makara Journal of Science

This study aims to encapsulate Cosmos caudatus K. leaf extract in sodium alginate crosslinked with calcium chloride (CaCl2) as coating materials through freeze-drying. Antioxidant assays were performed to evaluate the applicability of the microcapsules as antidiabetic medicines. Their characteristics, antioxidant activity, and encapsulation efficiency (EE) were also examined. Results indicated that the concentration of sodium alginate and pH influenced the manufacturing process of the microcapsules. The highest EE was obtained at pH 6 and alginate concentration of 2% (w/v). The IC50 for the antioxidant activity of the microcapsules was 139.96 ± 1.094 μg/mL. Scanning electron microscopy confirmed …


Antioxidant, Tyrosinase Inhibition Activity, And In Vitro Spf Evaluation Of Pepino Fruit Extract (Solanum Muricatum Aiton) In Different Solvent Types And Concentrations, Nining Sugihartini, Girly Risma Firsty, Wahyu Kumil Laila, Sri Mulyaningsih, Ichwan Ridwan Rais Apr 2024

Antioxidant, Tyrosinase Inhibition Activity, And In Vitro Spf Evaluation Of Pepino Fruit Extract (Solanum Muricatum Aiton) In Different Solvent Types And Concentrations, Nining Sugihartini, Girly Risma Firsty, Wahyu Kumil Laila, Sri Mulyaningsih, Ichwan Ridwan Rais

Pharmaceutical Sciences and Research

Solvent is a key factor that affects the effectiveness of active compound extraction from plant materials (simplisia). This study aimed to determine the optimal type and concentration of solvent used in the extraction of pepino fruit based on the parameter of antioxidant and tyrosinase inhibition activity, as well as Sun Protection Factor (SPF) value. The extraction was carried out using the maceration method with ethanol or ethyl acetate as the solvent, each at concentrations of 50%, 70%, and 96%, respectively. The antioxidant activity of the extracts was evaluated using the 1,1-diphenyl-2-picrylhydrazyl (DPPH) method. The inhibition of tyrosinase and …


Antioxidant Activities Of Roja Herbal Tea: Combination Of Rosella Flower (Hibiscus Sabdariffa L.) And Ginger Rhizome (Zingiber Officinale Rosc.), Wahyu Widowati, Teresa Liliana Wargasetia, Teddy Marcus Zakaria, Michael Sebastian Gunadi, Nathanael Halim, Sherly Santiadi, Hanna Sari Widya Kusuma, Nida Firyal Fauziyah Dec 2023

Antioxidant Activities Of Roja Herbal Tea: Combination Of Rosella Flower (Hibiscus Sabdariffa L.) And Ginger Rhizome (Zingiber Officinale Rosc.), Wahyu Widowati, Teresa Liliana Wargasetia, Teddy Marcus Zakaria, Michael Sebastian Gunadi, Nathanael Halim, Sherly Santiadi, Hanna Sari Widya Kusuma, Nida Firyal Fauziyah

Pharmaceutical Sciences and Research

Herbal teas and plant-based medicines have been widely used worldwide for their therapeutic and healing qualities. Rosella (Hibiscus sabdariffa L.) has various benefits in preventing digestive problems, liver disease, fever, and others. Ginger (Zingiber officinale Rosc.) or known as jahe in Indonesia is believed to benefit numerous clinical conditions linked to oxidative stress, including pancreatitis, hypertension, diabetic kidney disease, Alzheimer’s disease, and tumor development. They have been utilized in traditional medical practice to treat conditions such as fever, nausea, and headaches. In this study, we aimed to determine the antioxidant activities of rosella flower tea, ginger tea, and …


The Structural Characterization And Bioactivity Assessment Of Nonspecific Lipid Transfer Protein 1 (Nsltp1) From Caraway (Carum Carvi) Seeds, Taibah Aldakhil, Saud O. Alshammari, Bushra Siraj, Bishoy El-Aarag, Shamshad Zarina, David Salehi, Aftab Ahmed Jul 2023

The Structural Characterization And Bioactivity Assessment Of Nonspecific Lipid Transfer Protein 1 (Nsltp1) From Caraway (Carum Carvi) Seeds, Taibah Aldakhil, Saud O. Alshammari, Bushra Siraj, Bishoy El-Aarag, Shamshad Zarina, David Salehi, Aftab Ahmed

Pharmacy Faculty Articles and Research

Background

Carum carvi (caraway) of the Apiaceae family has been used in many cultures as a cooking spice and part of the folk medicine. Previous reports primarily focus on the medicinal properties of caraway seed essential oil and the whole seeds extract. However, no effort has been made to study caraway proteins and their potential pharmacological properties, including nonspecific lipid transfer protein (nsLTP), necessitating further research. The current study aimed to characterize nonspecific lipid transfer protein 1 (nsLTP1) from caraway seed, determine its three-dimensional structure, and analyze protein–ligand complex interactions through docking studies. We also evaluated nsLTP1 in vitro cytotoxic …


Design, Synthesis, Biological And Computational Studies Of Flavonoid Acetamide Derivatives, Daniel Kasungi Isika May 2023

Design, Synthesis, Biological And Computational Studies Of Flavonoid Acetamide Derivatives, Daniel Kasungi Isika

Dissertations

Flavonoid compounds (FC) have extensive biological applications through potent antimicrobial, anti-inflammatory, anticancer, antidiabetic, and antioxidant properties. These applications are nevertheless limited by low bioavailability, poor aqueous solubility, enzymatic degradation, rapid metabolism, and fast body clearance. FC show unique structure-activity relationships (SARs) essential in assessing and mitigating the prevalent challenges impeding their applications. These challenges can be addressed by structural modification of the FC through functionalization of the phenolic rings, modification of the ketone group, and modification of the phenolic hydroxyl groups with bioisosteres.

The objectives of this work are to (i) design and synthesize novel flavonoid acetamide derivatives (FADs) and …


Phytochemical Analysis, Antioxidant And Cytotoxic Activity Of Lannea Egregia Engl. & K. Krause Stem Bark Extracts, Seide M. Akoro, Mutiat A. Omotayo, Oyinlade C. Ogundare, Stemon A. Akpovwovwo, Gbemileke P. Bello Dec 2022

Phytochemical Analysis, Antioxidant And Cytotoxic Activity Of Lannea Egregia Engl. & K. Krause Stem Bark Extracts, Seide M. Akoro, Mutiat A. Omotayo, Oyinlade C. Ogundare, Stemon A. Akpovwovwo, Gbemileke P. Bello

Pharmaceutical Sciences and Research

This study investigates the phytochemical contents, antioxidants and cytotoxic activities of Lannea egregia Engl. & K. Krause stem bark extracts. Secondary metabolites were extracted using n-hexane, ethyl acetate, and ethanol by successive maceration. The concentrated extracts were subjected to preliminary phytochemical screening using standard procedures. The crude flavonoid was obtained from the plant material using Harborne’s method and then profiled using high-performance liquid chromatography (HPLC). The antioxidant activities of the plant extract were assessed using reducing power assay and DPPH scavenging activity, while the cytotoxic activity was determined using the brine shrimp lethality assay. The crude extract of n-hexane or …


The Benefits Of Astaxanthin To Improve Pain Relief In Patients With Painful Diabetic Neuropathy: An Open-Label, Randomized Controlled Trial, Rizaldy Taslim Pinzon, Mary Rose Angelina Budi Harsana Dec 2021

The Benefits Of Astaxanthin To Improve Pain Relief In Patients With Painful Diabetic Neuropathy: An Open-Label, Randomized Controlled Trial, Rizaldy Taslim Pinzon, Mary Rose Angelina Budi Harsana

Pharmaceutical Sciences and Research

Treatment of diabetic neuropathy is still carried out by providing symptomatic therapy, which only improves ± 50% of the total symptoms felt by patients, but does not tackle the underlying causes of the disease. Astaxanthin is a potent antioxidant, anti-inflammatory, and anti-diabetic carotenoid that could be an additional treatment option. We aimed to measure the effectiveness of administering astaxanthin as an additional therapy to improve the impact of pain and discomfort experienced daily by diabetes mellitus patients with painful diabetic neuropathy. We conducted a randomized experimental study with an open label design of 36 patients who had been diagnosed with …


The Effect Of Pre-Extraction Preparation On Antioxidant Compounds Of Sauropus Androgynus (L.) Merr. Leaves Extracts, Ni Putu Ermi Hikmawanti, Sofia Fatmawati, Zainal Arifin, Niken Cahyaningrum, Muhammad Arif Fauzan Dec 2021

The Effect Of Pre-Extraction Preparation On Antioxidant Compounds Of Sauropus Androgynus (L.) Merr. Leaves Extracts, Ni Putu Ermi Hikmawanti, Sofia Fatmawati, Zainal Arifin, Niken Cahyaningrum, Muhammad Arif Fauzan

Pharmaceutical Sciences and Research

Sauropus androgynus (L.) Merr. (Phyllanthaceae) is a green vegetable. It is rich in natural antioxidant compounds such as phenolics and flavonoids. The pre-extraction preparation can affect the results of extracting compounds from natural materials. This study aims to determine the effect of pre-extraction procedures, including sample form (fresh/dried), drying process (oven-drying/indirect sunlight-drying/air-drying), and particle size (ground/powdered) on total phenolic and flavonoid levels of ethanolic extracts of S. androgynus leaves and their antioxidant activity against DPPH radicals. S. androgynus leaves were extracted using the cold maceration method. The total phenolic and flavonoid contents of the extract were determined by the colorimetric …


Preliminary Characterization, Antioxidant And Antiproliferative Properties Of Polysaccharide From Caulerpa Taxifolia, Ariane Marie Bayro, Joanne Katherine Manlusoc, Renaliza Alonte, Catherine Caniel, Patrick Conde, Carlo Embralino Apr 2021

Preliminary Characterization, Antioxidant And Antiproliferative Properties Of Polysaccharide From Caulerpa Taxifolia, Ariane Marie Bayro, Joanne Katherine Manlusoc, Renaliza Alonte, Catherine Caniel, Patrick Conde, Carlo Embralino

Pharmaceutical Sciences and Research

Macroalgae are abundant sources of bioactive polysaccharides and prospective candidates for effective and non-toxic substances. This study aims to preliminary characterize and determine the in vitro antioxidant activity and cancer cell growth inhibitory activity against human lung adenocarcinoma cell (A549) of the polysaccharide from an invasive green alga, Caulerpa taxifolia. Crude polysaccharide (CP) was extracted from the dried algal sample of C. taxifolia by hot water extraction followed by absolute ethanol precipitation. CP was subjected to preliminary chemical characterization, including protein, carbohydrate, and sulfate content analysis by Kjeldahl titrimetry, acid hydrolysis, gravimetry, and ashing-acid water digestion ion chromatography, respectively. …


The Antioxidant And Antimicrobial Activities Of Cornsilk Extract Encapsulated In Polysaccharide Nanoparticles, Maryam Mady Jan 2021

The Antioxidant And Antimicrobial Activities Of Cornsilk Extract Encapsulated In Polysaccharide Nanoparticles, Maryam Mady

Theses and Dissertations

Corn silk possess antibacterial and antioxidant activities due to its phenolic compounds but they are of low bioavailability that requires some innovative techniques to develop such active ingredients in a safe and less toxic manner. Accordingly, silk extract SE was encapsulated in chitosan nanoparticles CS NPs, which is a natural and abundant polymer derived from chitin. Among 15 experimental trials via design expert software, the optimum formula of SE x\CS NPs was prepared at 800 rpm, 5hrs. on magnetic stirrer, and by CS: TPP ratio was 2.5:1. Then SEM showed the majority of particles size diameter in the range of …


Antioxidant And Antiaging Assays Of Ageratum Conyzoides (L.) Ethanolic Extract, Afifah B. Sutjiatmo, Novi Edriayani, Tira Endang Mulyasari, Faizal Hermanto, M. Fahrauk, Elin Y. Sukandar, Hanna Sari Widya Kusuma, Rizal Rizal, Wahyu Widowati Dec 2020

Antioxidant And Antiaging Assays Of Ageratum Conyzoides (L.) Ethanolic Extract, Afifah B. Sutjiatmo, Novi Edriayani, Tira Endang Mulyasari, Faizal Hermanto, M. Fahrauk, Elin Y. Sukandar, Hanna Sari Widya Kusuma, Rizal Rizal, Wahyu Widowati

Pharmaceutical Sciences and Research

The declining ability of tissues to repair or replace themselves and maintain their structure and normal function is called aging. Aging is caused by free radical that can induce the activation of elastase and collagenase. Ageratum conyzoides (L.) or known as Babadotan is a medicinal plant that has been reported to be a good source of antioxidants that also inhibit aging process. The purpose of this research is to evaluate the antioxidant and antiaging properties of Babadotan Ethanolic Extract (BEE). Franswoth method was used to determine the phytochemical assay of BEE. Measurement of 2,2-diphenyl 1-picrylhydrazyl (DPPH) scavenger was used for …


Lipid Peroxidation Inhibition Activity Of Sintrong (Crassocephalum Crepidioi-Des) Leaf Extract In Rats Consuming Arak Jembrana, Ni Putu Widayanti, Ayu Saka Laksmita W, Desak Putu Risky Vidika Apriyanthi, I G K Nyoman Arijana Dec 2020

Lipid Peroxidation Inhibition Activity Of Sintrong (Crassocephalum Crepidioi-Des) Leaf Extract In Rats Consuming Arak Jembrana, Ni Putu Widayanti, Ayu Saka Laksmita W, Desak Putu Risky Vidika Apriyanthi, I G K Nyoman Arijana

Makara Journal of Science

The present study was conducted to determine the antioxidant activity of sintrong (Crassocephalum crepidioides) leaf extract to inhibiting lipid peroxidation by decreased malondialdehyde (MDA) level in the blood plasma of rats consuming arak Jembrana. The process of making sintrong leaf extract used 96% ethanol with maceration techniques. In vivo testing used five groups: (1) a control group, (2) treatment with arak, (3) treatment with arak followed by extract at a dose of 37.5 mg/kgBW, (4) treatment with arak followed by extract at a dose of 50 mg/kgBW, and (5) treatment with arak followed by extract at a dose …


Pengaruh Cara Pengeringan Simplisia Daun Senggani (Melastoma Malabathricum L.) Terhadap Aktivitas Antioksidan Menggunakan Metode Dpph (2,2-Difenil-1-Pikrilhidrazil), Sri Luliana, Nera Umilia Purwanti, Kris Natalia Manihuruk Dec 2016

Pengaruh Cara Pengeringan Simplisia Daun Senggani (Melastoma Malabathricum L.) Terhadap Aktivitas Antioksidan Menggunakan Metode Dpph (2,2-Difenil-1-Pikrilhidrazil), Sri Luliana, Nera Umilia Purwanti, Kris Natalia Manihuruk

Pharmaceutical Sciences and Research

Drying is the most important step to keep the compound stability in simplicia. The objective of this research is to know the effect of drying methods on antioxidant activity in Melastoma malabathricum L. The drying methods tested were oven-drying at 40°C, direct sunlight, indirect sunlight, air-drying at ± 25°C and fresh samples as control. Result revealed that the drying methods of simplicia were significant differences for antioxidant activity in Melastoma malabathricum L. (p < 0,05). Drying method that has the highest antioxidant activity was by air-drying at ± 25°C is 54.60 %.


Enzim Papain: Aspek Green Chemistry Pada Reaksi Knoevenagel, Laurentius Haryanto, Antonius Herry Cahyana Aug 2015

Enzim Papain: Aspek Green Chemistry Pada Reaksi Knoevenagel, Laurentius Haryanto, Antonius Herry Cahyana

Pharmaceutical Sciences and Research

Green chemistry aspect is the chemical approach that has been studied in the past two decade. One of the principles is the development of green synthesis process that is friendly for the environment. This research showed that papain can be used as catalyst for Knoevenagel reaction with 3 kinds of substituted-benzaldehyde and malononitrile as substrates in aqueous medium. The best reaction condition with 80% yield was reached by utilizing of 25 mg papain/mmol substrate. Reaction was conducted at ambient temperature and pressure for 30 min. Products were as yellowish to yellow needle crystals and successfully characterized by melting point, UV-Vis, …


Losio Antioksidan Buah Naga Merah (Hylocereus Polyrhizusbritton And Rose), Amanda Angelina Sinaga, Sri Luliana, Andhi Fahrurroji Apr 2015

Losio Antioksidan Buah Naga Merah (Hylocereus Polyrhizusbritton And Rose), Amanda Angelina Sinaga, Sri Luliana, Andhi Fahrurroji

Pharmaceutical Sciences and Research

Hylocereus polyrhizus Britton and Rose (Red dragon fruit) has been shown to have antioxidant activity which contains vitamin C, polyphenol, and flavonoid. This research was aimed to investigate antioxidant activity from H. polyrhizus in form of lotion. Lotion were made with 5 concentration from H. polyrhizus methanol extract were 0.04, 0.08, 0.16, 0.32 and 0.64%. Lotion antioxidant activity was measured using DPPH method. The result showed that H. polyrhizus methanol extract had antioxidant activity with inhibition concentration were 19.99±0.33; 25.01±0.08; 39.14±0.04; 66.69±0.12 and 83.37±0.05. The result showed significant differences on antioxidant activity. The physical stability observation of five formula with …


Aktivitas Antioksidan Ekstrak, Fraksi Dan Golongan Senyawakimia Daun Premna Oblongata Miq, Katrin Katrin, Atika Bendra Apr 2015

Aktivitas Antioksidan Ekstrak, Fraksi Dan Golongan Senyawakimia Daun Premna Oblongata Miq, Katrin Katrin, Atika Bendra

Pharmaceutical Sciences and Research

Indonesia has many kinds of plants which can be used as natural antioxidant sources. This study was focused on antioxidant activity of Cincau Perdu leaves extract (Premna oblongata Miq.) using 1-Diphenyl-2-picrylhydrazyl (DPPH) methods. P. oblongata leaves was extracted using n-hexane, ethylacetate and methanol. It was found that methanol extract has the highest activity with IC50 value 20.01 μg/mL. The extract with highest antioxidant activity were fractionated with accelerated column chromatography and were earned 6 combination fractions. The antioxidant activity of each combination fractions were tested by DPPH methods. Fraction-5 showed the highest activity as antioxidant with IC50 23.51 μg/mL. The …


Efek Fraksi N-Heksana Kulit Hylocereus Polyrhizus Terhadapaktivitas Katalase Tikus Stres Oksidatif, Eka Kartika Untari, Sri Wahdaningsih, Agustia Damayanti Dec 2014

Efek Fraksi N-Heksana Kulit Hylocereus Polyrhizus Terhadapaktivitas Katalase Tikus Stres Oksidatif, Eka Kartika Untari, Sri Wahdaningsih, Agustia Damayanti

Pharmaceutical Sciences and Research

Production of excess free radicals cause oxidative damage and degenerative diseases. Catalase enzyme is one of the endogenous intracellular antioxidant that can be reduced by oxidative stress conditions. The peel of red dragon fruit (Hylocereus polyrhizus) as a potent exogenous antioxidants could support the internal enzyme activity to prevent free radicals. The aim of this research was to determine the effect of n-hexane fraction of H.polyrhizus’s peel and the dose that could increase activity of catalase. The peel was maserated with chloroform, then fractionated by n-hexane. Stress condition was achieved by five days fasting and swimming for 10 mins/day to …


Efek Fraksi N-Heksana Kulit Hylocereus Polyhizus Terhadap Kadar Malondialdehida Tikus Stres Oksidatif, Wirna Maya Sari, Sri Wahdaningsih, Eka Kartika Untari Dec 2014

Efek Fraksi N-Heksana Kulit Hylocereus Polyhizus Terhadap Kadar Malondialdehida Tikus Stres Oksidatif, Wirna Maya Sari, Sri Wahdaningsih, Eka Kartika Untari

Pharmaceutical Sciences and Research

Excessive free radical production will lead to oxidative stress. One of the indicators used to determine stress oxidative is malondialdehyde (MDA). Hylocereus polyhizus peel is potential used natural exogenous antioxidant. The aim of this research was to study the effect of n-hexane fraction of H.polyhizus peel on MDA level and to determine the dose that could reduce the MDA level. H.polyhizus peel was macerated with chloroform, fractionated with n-Hexane. Rats were divided into 7 groups : normal, negative, positive control vitamin E (18 mg/ kgbw), positive control quercetin (4 mg/200gbw), H.polyhizus peel extract group treated with dose I (10mg/ 200gbw), …


Efek Ekstrak Etanol Daun Premna Cordifolia Terhadap Malondialdehida Tikus Yang Dipapar Asap Rokok, Asri Adyttia, Eka Kartika Untari, Sri Wahdaningsih Aug 2014

Efek Ekstrak Etanol Daun Premna Cordifolia Terhadap Malondialdehida Tikus Yang Dipapar Asap Rokok, Asri Adyttia, Eka Kartika Untari, Sri Wahdaningsih

Pharmaceutical Sciences and Research

Free radical from cigarrete smoke cause lipid peroxidation that could be identified by increasing levels of Malondialdehida (MDA). Premna cordifolia leaves known having antioxidant activity in in vitro study. This study aimed to know the effect of P. cordifolia leaves extract on the levels of MDA after exposure to cigarette smoke. The simplicia extracted by maseration using 70% ethanol. Twenty four male wistar rats were divided into six groups, i.e. : control normal, negative control, positive control received cigarette smoke exposure and vitamin E (18mg/kg BW) and three groups received cigarette smoke exposure and P. cordifolia leaves extract with doses …


Isolation And Partial Characterization Of Bioactive Fucoxanthin From Himanthalia Elongata Brown Seaweed: A Tlc-Based Approach, Gaurav Rajauria, Nissreen Abu-Ghannam May 2013

Isolation And Partial Characterization Of Bioactive Fucoxanthin From Himanthalia Elongata Brown Seaweed: A Tlc-Based Approach, Gaurav Rajauria, Nissreen Abu-Ghannam

Articles

Seaweeds are important sources of carotenoids, and numerous studies have shown the beneficial effects of these pigments on human health. In the present study, Himanthalia elongata brown seaweed was extracted with a mixture of low polarity solvents, and the crude extract was separated using analytical thin-layer chromatography (TLC).The separated compounds were tested for their potential antioxidant capacity and antimicrobial activity against Listeria monocytogenes bacteria using TLC bioautography approach. For bio-autography, the coloured band on TLC chromatogram was visualized after spraying with DPPH and triphenyltetrazolium chloride reagents which screen antioxidant and antimicrobial compounds, respectively, and only one active compound was screened …