The Experts below are selected from a list of 753 Experts worldwide ranked by ideXlab platform

Brijesh Kumar - One of the best experts on this subject based on the ideXlab platform.

  • simultaneous determination of pyrroquinazoline alkaloids and flavonoids in Adhatoda beddomei and Adhatoda vasica and their marketed herbal formulations using ultra high performance liquid chromatography coupled with triple quadrupole linear ion trap mass spectrometry
    Biomedical Chromatography, 2017
    Co-Authors: Awantika Singh, Sachin Kumar, Vikas Bajpai, Brijesh Kumar
    Abstract:

    Adhatoda beddomei and Adhatoda vasica leaf, known as ‘Vasaka’ and/or ‘Vasa’ in Ayurveda and Malabar nut in English is an official drug in the Indian Pharmacopoeia. The medicinal properties of these plants are due to the presence of pyrroquinazoline alkaloids. An UHPLC–ESI/MS/MS method in both positive and negative electrospray ionization (ESI) in multiple-reaction-monitoring (MRM) mode was developed and validated for the estimation of alkaloids and flavonoids in Adhatoda species and their marketed herbal formulations. Chromatographic separation was achieved on an Acquity UPLC® BEH C18-column using a gradient elution with 0.1% formic acid in water and methanol. The developed method was validated as per ICH guidelines and found to be accurate with overall recovery in the range 94.2–105.0% (RSD ≤ 1.71%), precise (RSD ≤ 3.44%) and linear (R2 ≥ 0.9992) over the concentration range of 0.5–1000 ng/mL. The total content of alkaloids and flavonoids were found highest in the chloroform and aqueous fraction of A. vasica leaf, respectively. The results indicated that the developed method was simple, rapid, sensitive, selective and accurate for the estimation of multiple bioactive constituents in crude mixture, therefore, could make a contribution for the quality control of Adhatoda species and its derived herbal formulations.

  • structural characterization of flavonoid c and o glycosides in an extract of Adhatoda vasica leaves by liquid chromatography with quadrupole time of flight mass spectrometry
    Rapid Communications in Mass Spectrometry, 2015
    Co-Authors: Awantika Singh, Vikas Bajpai, Brijesh Kumar, Sunil Kumar, K. B. Rameshkumar, Jagadeshwar T Reddy
    Abstract:

    Rationale Adhatoda vasica Nees is a well-known Ayurvedic medicinal plant, belonging to the family Acanthaceae. This study aims to seek identification and characterization of flavonoid C- and O-glycosides in the aqueous fraction of the plant leaves. Methods A method was developed for simultaneous characterization of flavonoids and their glycosides using high-pressure liquid chromatography with quadrupole time-of-flight mass spectrometry (HPLC/ESI-QTOF-MS/MS). The chromatographic separation was carried on an Agilent Poroshell 120 EC-C18 column (4.6 × 150 mm, 2.7 µm) operated with 0.1% formic acid aqueous solution and methanol as the mobile phase. Results The fragmentations of the studied [M–H]− ions of C-glycosides were shown to be cross-ring cleavages of the glycoside moiety [M–H–(60/90/120)]− whereas O-glycosides were shown to eliminate the sugar moiety (Y0− or [Y0–H]−) from the aglycone unit; 6-C-glycosides exhibited [M–H–18]−, a characteristic ion, and also a higher abundance of 0,3X6 or 8 ions in comparison to 8-C glycosides; flavonoid 6,8-di-C-glycosides exhibited cross-ring cleavages of the sugar attached to the C-6 position preferentially. Conclusions This method was successfully applied for analysis of flavonoids and their glycosides in Adhatoda vasica leaves. A total of 29 compounds were tentatively identified including 17 C-, nine O-glycosides and three flavonoids. Copyright © 2015 John Wiley & Sons, Ltd.

  • Screening of tricyclic quinazoline alkaloids in the alkaloidal fraction of Adhatoda beddomei and Adhatoda vasica leaves by high-performance liquid chromatography/electrospray ionization quadrupole time-of-flight tandem mass spectrometry.
    Rapid communications in mass spectrometry : RCM, 2015
    Co-Authors: Awantika Singh, Sunil Kumar, T. Jagadeshwar Reddy, K. B. Rameshkumar, Brijesh Kumar
    Abstract:

    RATIONALE Adhatoda beddomei and Adhatoda vasica are popular Ayurvedic medicinal plants in India, belonging to the family Acanthaceae. Tricyclic quinazoline alkaloids are found to be the most abundant in these plants which are responsible for broad-spectrum medicinal properties. This study aims to seek identification and characterization of those alkaloids based on their fragmentation patterns. METHODS A method was developed to elucidate the main fragmentation pathways of tricyclic quinazoline alkaloids in positive ion mode using high-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (HPLC/ESI-QTOF-MS/MS). Chromatographic separation was carried on a Supelco Discovery HS C18 column (15 cm × 4.6 mm, 3 µm) with 0.1% formic acid aqueous solution and acetonitrile as a mobile phase. RESULTS In full scan mass spectra, protonated molecules were observed for all the quinazoline alkaloids. Ring cleavages of the tricyclic quinazoline moiety were observed in MS2 spectra and the characteristic ions provide valuable structural information of these alkaloids. Fragmentation pathways and fragment ion structures were proposed in two groups of quinazoline alkaloids. CONCLUSIONS The established fragmentation patterns have been successfully used to identify 23 tricyclic quinazoline alkaloids in the alkaloidal fraction of A. beddomei and A. vasica. Copyright © 2015 John Wiley & Sons, Ltd.

R.g.s. Wijesekara - One of the best experts on this subject based on the ideXlab platform.

  • Antioxidant activities of traditional plants in Sri Lanka by DPPH free radical-scavenging assay.
    Data in brief, 2018
    Co-Authors: Kotaro Hara, Takao Someya, Katsura Sano, Yoshimasa Sagane, Toshihiro Watanabe, R.g.s. Wijesekara
    Abstract:

    This article describes free radical-scavenging activities of extracts of several plants harvested in Sri Lanka through the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. These plants have traditionally been used in the indigenous systems of medicine in Sri Lanka, such as Ayurveda, as described below. (English name, "local name in Sri Lanka," (scientific name)). bougainvillea plant, "bouganvilla," (Bougainvillea grabla), purple fruited pea eggplant,"welthibbatu," (Solanum trilobatum) [1], country borage plant, "kapparawalliya," (Plectranthus amboinicus) [2], malabar nut plant, "Adhatoda," (Justicia Adhatoda) [3], long pepper plant,"thippili," (Piper longum) [4], holy basil plant, "maduruthala," (Ocimum tenuiflorum) [5], air plant, "akkapana," (Kalanchoe pinnata) [6], plumed cockscomb plant, "kiri-henda," (Celosia argentea) [7], neem plant,"kohomba," (Azadirachta indica) [8], balipoovu plant, "polpala," (Aerva lanata) [9], balloon-vine plant, "wel penera," (Cardiospermum halicacabum) [10], emblic myrobalan plant, "nelli," (Phyllanthus emblica) [11], indian copperleaf plant, "kuppameniya," (Acalypha indica) [12], spreading hogweed plant, "pita sudu sarana," (Boerhavia diffusa) [13], curry leaf plant, "karapincha," (Murraya koenigii) [14], indian pennywort plant, "gotukola," (Centera asiatica) [15], jewish plum plant, "ambarella,"(Spondias dulcis) [16].

  • Antioxidant activities of traditional plants in Sri Lanka by DPPH free radical-scavenging assay
    Elsevier, 2018
    Co-Authors: Kotaro Hara, Takao Someya, Katsura Sano, Yoshimasa Sagane, Toshihiro Watanabe, R.g.s. Wijesekara
    Abstract:

    This article describes free radical-scavenging activities of extracts of several plants harvested in Sri Lanka through the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. These plants have traditionally been used in the indigenous systems of medicine in Sri Lanka, such as Ayurveda, as described below. (English name, “local name in Sri Lanka,” (scientific name)).bougainvillea plant, “bouganvilla,” (Bougainvillea grabla), purple fruited pea eggplant,”welthibbatu,” (Solanum trilobatum) [1], country borage plant, “kapparawalliya,” (Plectranthus amboinicus) [2], malabar nut plant, “Adhatoda,” (Justicia Adhatoda) [3], long pepper plant,”thippili,” (Piper longum) [4], holy basil plant, “maduruthala,” (Ocimum tenuiflorum) [5], air plant, “akkapana,” (Kalanchoe pinnata) [6], plumed cockscomb plant, “kiri-henda,” (Celosia argentea) [7], neem plant,”kohomba,” (Azadirachta indica) [8], balipoovu plant, “polpala,” (Aerva lanata) [9], balloon-vine plant, “wel penera,” (Cardiospermum halicacabum) [10], emblic myrobalan plant, “nelli,” (Phyllanthus emblica) [11], indian copperleaf plant, “kuppameniya,” (Acalypha indica) [12], spreading hogweed plant, “pita sudu sarana,” (Boerhavia diffusa) [13], curry leaf plant, “karapincha,” (Murraya koenigii) [14], indian pennywort plant, “gotukola,” (Centera asiatica) [15], jewish plum plant, “ambarella,”(Spondias dulcis) [16]. Keywords: Antioxidative activity, DPPH radical-scavenging assay, Traditional plant, Medical her

  • Effect of traditional plants in Sri Lanka on skin keratinocyte count
    Elsevier, 2018
    Co-Authors: Katsura Sano, Takao Someya, Kotaro Hara, Yoshimasa Sagane, Toshihiro Watanabe, R.g.s. Wijesekara
    Abstract:

    This article describes the effects of extracts of several plants collected in Sri Lanka on the number of human skin keratinocytes. This study especially focuses on the plants traditionally used in indigenous systems of medicine in Sri Lanka, such as Ayurveda, as described below (English name, “local name in Sri Lanka,” scientific name). Neem plant,”kohomba,” Azadirachta indica (Sujarwo et al., 2016; Nature’s Beauty Creations Ltd., 2014) [1,2], emblic myrobalan plant, “nelli,” Phyllanthus emblica (Singh et al., 2011; Nature’s Beauty Creations Ltd., 2014) [3,4], malabar nut plant, “Adhatoda,” Justicia Adhatoda (Claeson et al., 2000; Nature’s Beauty Creations Ltd., 2014) [5,6], holy basil plant, “maduruthala,” Ocimum tenuiflorum ( Cohen et al., 2014; Nature’s Beauty Creations Ltd., 2014) [7,8]. The expression profiles are provided as line graphs. Keywords: Cell number, Keratinocytes, Calcein assay, Traditional plant, Medical her

  • Effect of traditional plants in Sri Lanka on skin fibroblast cell number
    Elsevier, 2018
    Co-Authors: Katsura Sano, Takao Someya, Kotaro Hara, Yoshimasa Sagane, Toshihiro Watanabe, R.g.s. Wijesekara
    Abstract:

    This article describes the effects of extracts of several plants collected in Sri Lanka on the cell number of human skin fibroblasts. This study especially focuses on the plants traditionally used in indigenous systems of medicine in Sri Lanka, such as Ayurveda, as described below (English name, “local name in Sri Lanka,” scientific name). Bougainvillea plant, “bouganvilla,” Bougainvillea grabla (Nature׳s Beauty Creations Ltd., 2014) [1], purple fruited pea eggplant,”welthibbatu,” Solanum trilobatum (Nature׳s Beauty Creations Ltd., 2014) [2], country borage plant, “kapparawalliya,” Plectranthus amboinicus (Nature׳s Beauty Creations Ltd., 2014) [3], malabar nut plant, “Adhatoda,” Justicia Adhatoda (Nature׳s Beauty Creations Ltd., 2014) [4], long pepper plant,”thippili,” Piper longum (Nature׳s Beauty Creations Ltd., 2014) [5], holy basil plant, “maduruthala,” Ocimum tenuiflorum (Nature׳s Beauty Creations Ltd., 2014) [6], air plant, “akkapana,” Kalanchoe pinnata (Nature׳s Beauty Creations Ltd., 2014) [7], plumed cockscomb plant, “kiri-henda,” Celosia argentea (Nature׳s Beauty Creations Ltd., 2014) [8], neem plant,”kohomba,” Azadirachta indica (Nature׳s Beauty Creations Ltd., 2014) [9], emblic myrobalan plant, “nelli,” Phyllanthus emblica (Nature׳s Beauty Creations Ltd., 2014) [10]. Human skin fibroblast cells were treated with various concentration of plant extracts (0–3.0%), and the cell viability of cells were detected using calcein assay. The cell viabillity profiles are provided as line graphs. Keywords: Cell number, Fibroblasts, Calcein assay, Traditional plant, Medical her

  • Data on the inhibitory effect of traditional plants from Sri Lanka against tyrosinase and collagenase
    Elsevier, 2018
    Co-Authors: Jun Ito, Takao Someya, Kotaro Hara, Yoshimasa Sagane, Toshihiro Watanabe, R.g.s. Wijesekara, Takao Myoda, Kazuki Toeda, Satoshi Nojima
    Abstract:

    This article describes the inhibitory effects of extracts from 25 plants harvested in Sri Lanka against tyrosinase and collagenase. Inhibitors of these enzymes are common ingredients in cosmetics and medications, which help protect the skin against hyperpigmentation and premature aging. The article also discusses the polyphenol content of the extracts, which is well known to possess antioxidant properties. The extract data from the following plants, which have a long history in Sri Lankan traditional medicine, such as Ayurveda, have been provided: English name, “local name in Sri Lanka,” (scientific name). Indian copperleaf plant, “kuppameniya,” (Acalypha indica); red sandalwood, “madatiya”, (Adenanthera pavonina); balipoovu plant, “polpala,” (Aerva lanata); snap ginger, “heen araththa,” (Alpinia calcarata); bael fruit, “beli,” (Aegle marmelos); coastal waterhyssop, “lunuwila,” (Bacopa monnieri); porcupine flower, “katu karandu,” (Barleria prionitis); balloon-vine plant, “wel penera,” (Cardiospermum halicacabum); water caltrop, “Katupila,” (Flueggea leucopyrus); Indian sarsparilla, “iramusu,” (Hemidesmus indicus); malabar nut plant, “Adhatoda,” (Justicia Adhatoda); wood apple, “divul,” (Limonia acidissima); holy basil plant, “maduruthala,” (Ocimum tenuiflorum); emblic myrobalan plant, “nelli,” (Phyllanthus emblica); long pepper plant,”thippili,” (Piper longum); country borage plant, “kapparawalliya,” (Plectranthus amboinicus); common sesban, “wel murunga,” (Sesbania sesban); turkey berry, “gona batu,” (Solanum rudepannum Dunal); purple fruited pea eggplant,”welthibbatu,” (Solanum trilobatum); black plum, “madan,” (Syzygium cumini); crape jasmine, “wathusudda,” (Tabernaemontana divaricate); purple tephrosia, “pila,” (Tephrosia purpurea); Chinese chaste tree, “nika,” (Vitex negundo); and arctic snow, “suduidda,” (Wrightia antidysenterica). The inhibitory effects of these plant extracts on tyrosinase and collagenase, as well as polyphenol contents in the extracts, are detailed in Table 1

Awantika Singh - One of the best experts on this subject based on the ideXlab platform.

  • simultaneous determination of pyrroquinazoline alkaloids and flavonoids in Adhatoda beddomei and Adhatoda vasica and their marketed herbal formulations using ultra high performance liquid chromatography coupled with triple quadrupole linear ion trap mass spectrometry
    Biomedical Chromatography, 2017
    Co-Authors: Awantika Singh, Sachin Kumar, Vikas Bajpai, Brijesh Kumar
    Abstract:

    Adhatoda beddomei and Adhatoda vasica leaf, known as ‘Vasaka’ and/or ‘Vasa’ in Ayurveda and Malabar nut in English is an official drug in the Indian Pharmacopoeia. The medicinal properties of these plants are due to the presence of pyrroquinazoline alkaloids. An UHPLC–ESI/MS/MS method in both positive and negative electrospray ionization (ESI) in multiple-reaction-monitoring (MRM) mode was developed and validated for the estimation of alkaloids and flavonoids in Adhatoda species and their marketed herbal formulations. Chromatographic separation was achieved on an Acquity UPLC® BEH C18-column using a gradient elution with 0.1% formic acid in water and methanol. The developed method was validated as per ICH guidelines and found to be accurate with overall recovery in the range 94.2–105.0% (RSD ≤ 1.71%), precise (RSD ≤ 3.44%) and linear (R2 ≥ 0.9992) over the concentration range of 0.5–1000 ng/mL. The total content of alkaloids and flavonoids were found highest in the chloroform and aqueous fraction of A. vasica leaf, respectively. The results indicated that the developed method was simple, rapid, sensitive, selective and accurate for the estimation of multiple bioactive constituents in crude mixture, therefore, could make a contribution for the quality control of Adhatoda species and its derived herbal formulations.

  • structural characterization of flavonoid c and o glycosides in an extract of Adhatoda vasica leaves by liquid chromatography with quadrupole time of flight mass spectrometry
    Rapid Communications in Mass Spectrometry, 2015
    Co-Authors: Awantika Singh, Vikas Bajpai, Brijesh Kumar, Sunil Kumar, K. B. Rameshkumar, Jagadeshwar T Reddy
    Abstract:

    Rationale Adhatoda vasica Nees is a well-known Ayurvedic medicinal plant, belonging to the family Acanthaceae. This study aims to seek identification and characterization of flavonoid C- and O-glycosides in the aqueous fraction of the plant leaves. Methods A method was developed for simultaneous characterization of flavonoids and their glycosides using high-pressure liquid chromatography with quadrupole time-of-flight mass spectrometry (HPLC/ESI-QTOF-MS/MS). The chromatographic separation was carried on an Agilent Poroshell 120 EC-C18 column (4.6 × 150 mm, 2.7 µm) operated with 0.1% formic acid aqueous solution and methanol as the mobile phase. Results The fragmentations of the studied [M–H]− ions of C-glycosides were shown to be cross-ring cleavages of the glycoside moiety [M–H–(60/90/120)]− whereas O-glycosides were shown to eliminate the sugar moiety (Y0− or [Y0–H]−) from the aglycone unit; 6-C-glycosides exhibited [M–H–18]−, a characteristic ion, and also a higher abundance of 0,3X6 or 8 ions in comparison to 8-C glycosides; flavonoid 6,8-di-C-glycosides exhibited cross-ring cleavages of the sugar attached to the C-6 position preferentially. Conclusions This method was successfully applied for analysis of flavonoids and their glycosides in Adhatoda vasica leaves. A total of 29 compounds were tentatively identified including 17 C-, nine O-glycosides and three flavonoids. Copyright © 2015 John Wiley & Sons, Ltd.

  • Screening of tricyclic quinazoline alkaloids in the alkaloidal fraction of Adhatoda beddomei and Adhatoda vasica leaves by high-performance liquid chromatography/electrospray ionization quadrupole time-of-flight tandem mass spectrometry.
    Rapid communications in mass spectrometry : RCM, 2015
    Co-Authors: Awantika Singh, Sunil Kumar, T. Jagadeshwar Reddy, K. B. Rameshkumar, Brijesh Kumar
    Abstract:

    RATIONALE Adhatoda beddomei and Adhatoda vasica are popular Ayurvedic medicinal plants in India, belonging to the family Acanthaceae. Tricyclic quinazoline alkaloids are found to be the most abundant in these plants which are responsible for broad-spectrum medicinal properties. This study aims to seek identification and characterization of those alkaloids based on their fragmentation patterns. METHODS A method was developed to elucidate the main fragmentation pathways of tricyclic quinazoline alkaloids in positive ion mode using high-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (HPLC/ESI-QTOF-MS/MS). Chromatographic separation was carried on a Supelco Discovery HS C18 column (15 cm × 4.6 mm, 3 µm) with 0.1% formic acid aqueous solution and acetonitrile as a mobile phase. RESULTS In full scan mass spectra, protonated molecules were observed for all the quinazoline alkaloids. Ring cleavages of the tricyclic quinazoline moiety were observed in MS2 spectra and the characteristic ions provide valuable structural information of these alkaloids. Fragmentation pathways and fragment ion structures were proposed in two groups of quinazoline alkaloids. CONCLUSIONS The established fragmentation patterns have been successfully used to identify 23 tricyclic quinazoline alkaloids in the alkaloidal fraction of A. beddomei and A. vasica. Copyright © 2015 John Wiley & Sons, Ltd.

N N Tripathi - One of the best experts on this subject based on the ideXlab platform.

  • Repellent activity of some essential oils against two stored product beetles Callosobruchus chinensis L. and C. maculatus F. (Coleoptera: Bruchidae) with reference to Chenopodium ambrosioides L. oil for the safety of pigeon pea seeds
    Journal of Food Science and Technology, 2014
    Co-Authors: Abhay K Pandey, Uma Tiwari Palni, N N Tripathi
    Abstract:

    Essential oils from 35 aromatic and medicinal plant species of Gorakhpur Division (U. P., India) were evaluated for their repellent activity against pulse bruchids Callosobruchus chinensis L. and C. maculatus F. of stored pigeon pea seeds. The oil concentration was at 0.36 μl/ml. Out of 35 essential oils, Adhatoda vasica Ness and Chenopodium ambrosioides L. oils showed absolute (100 %) insect repellency. Chenopodium oil exhibited 100 % mortality for both the test insects at 10 μl concentration (LD50 = 2.8 μl for C. chinensis & 2.5 μl for C. maculatus) and more toxic than Adhatoda oil (LD50 = 6.8 μl for C. chinensis & 8.4 μl for C. maculatus). During in vivo evaluation, 0.29 and 0.58 μl/ml of Chenopodium oil significantly enhanced feeding deterrence in insects and reduced the seed damage as well as weight loss of fumigated pigeon pea seeds up to 6 months of storage as compared to control set. Thus, Chenopodium oil can be used as an effective option of commercial fumigants for the storage of pigeon pea seeds against pulse bruchids.

Kotaro Hara - One of the best experts on this subject based on the ideXlab platform.

  • Antioxidant activities of traditional plants in Sri Lanka by DPPH free radical-scavenging assay.
    Data in brief, 2018
    Co-Authors: Kotaro Hara, Takao Someya, Katsura Sano, Yoshimasa Sagane, Toshihiro Watanabe, R.g.s. Wijesekara
    Abstract:

    This article describes free radical-scavenging activities of extracts of several plants harvested in Sri Lanka through the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. These plants have traditionally been used in the indigenous systems of medicine in Sri Lanka, such as Ayurveda, as described below. (English name, "local name in Sri Lanka," (scientific name)). bougainvillea plant, "bouganvilla," (Bougainvillea grabla), purple fruited pea eggplant,"welthibbatu," (Solanum trilobatum) [1], country borage plant, "kapparawalliya," (Plectranthus amboinicus) [2], malabar nut plant, "Adhatoda," (Justicia Adhatoda) [3], long pepper plant,"thippili," (Piper longum) [4], holy basil plant, "maduruthala," (Ocimum tenuiflorum) [5], air plant, "akkapana," (Kalanchoe pinnata) [6], plumed cockscomb plant, "kiri-henda," (Celosia argentea) [7], neem plant,"kohomba," (Azadirachta indica) [8], balipoovu plant, "polpala," (Aerva lanata) [9], balloon-vine plant, "wel penera," (Cardiospermum halicacabum) [10], emblic myrobalan plant, "nelli," (Phyllanthus emblica) [11], indian copperleaf plant, "kuppameniya," (Acalypha indica) [12], spreading hogweed plant, "pita sudu sarana," (Boerhavia diffusa) [13], curry leaf plant, "karapincha," (Murraya koenigii) [14], indian pennywort plant, "gotukola," (Centera asiatica) [15], jewish plum plant, "ambarella,"(Spondias dulcis) [16].

  • Antioxidant activities of traditional plants in Sri Lanka by DPPH free radical-scavenging assay
    Elsevier, 2018
    Co-Authors: Kotaro Hara, Takao Someya, Katsura Sano, Yoshimasa Sagane, Toshihiro Watanabe, R.g.s. Wijesekara
    Abstract:

    This article describes free radical-scavenging activities of extracts of several plants harvested in Sri Lanka through the 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. These plants have traditionally been used in the indigenous systems of medicine in Sri Lanka, such as Ayurveda, as described below. (English name, “local name in Sri Lanka,” (scientific name)).bougainvillea plant, “bouganvilla,” (Bougainvillea grabla), purple fruited pea eggplant,”welthibbatu,” (Solanum trilobatum) [1], country borage plant, “kapparawalliya,” (Plectranthus amboinicus) [2], malabar nut plant, “Adhatoda,” (Justicia Adhatoda) [3], long pepper plant,”thippili,” (Piper longum) [4], holy basil plant, “maduruthala,” (Ocimum tenuiflorum) [5], air plant, “akkapana,” (Kalanchoe pinnata) [6], plumed cockscomb plant, “kiri-henda,” (Celosia argentea) [7], neem plant,”kohomba,” (Azadirachta indica) [8], balipoovu plant, “polpala,” (Aerva lanata) [9], balloon-vine plant, “wel penera,” (Cardiospermum halicacabum) [10], emblic myrobalan plant, “nelli,” (Phyllanthus emblica) [11], indian copperleaf plant, “kuppameniya,” (Acalypha indica) [12], spreading hogweed plant, “pita sudu sarana,” (Boerhavia diffusa) [13], curry leaf plant, “karapincha,” (Murraya koenigii) [14], indian pennywort plant, “gotukola,” (Centera asiatica) [15], jewish plum plant, “ambarella,”(Spondias dulcis) [16]. Keywords: Antioxidative activity, DPPH radical-scavenging assay, Traditional plant, Medical her

  • Effect of traditional plants in Sri Lanka on skin keratinocyte count
    Elsevier, 2018
    Co-Authors: Katsura Sano, Takao Someya, Kotaro Hara, Yoshimasa Sagane, Toshihiro Watanabe, R.g.s. Wijesekara
    Abstract:

    This article describes the effects of extracts of several plants collected in Sri Lanka on the number of human skin keratinocytes. This study especially focuses on the plants traditionally used in indigenous systems of medicine in Sri Lanka, such as Ayurveda, as described below (English name, “local name in Sri Lanka,” scientific name). Neem plant,”kohomba,” Azadirachta indica (Sujarwo et al., 2016; Nature’s Beauty Creations Ltd., 2014) [1,2], emblic myrobalan plant, “nelli,” Phyllanthus emblica (Singh et al., 2011; Nature’s Beauty Creations Ltd., 2014) [3,4], malabar nut plant, “Adhatoda,” Justicia Adhatoda (Claeson et al., 2000; Nature’s Beauty Creations Ltd., 2014) [5,6], holy basil plant, “maduruthala,” Ocimum tenuiflorum ( Cohen et al., 2014; Nature’s Beauty Creations Ltd., 2014) [7,8]. The expression profiles are provided as line graphs. Keywords: Cell number, Keratinocytes, Calcein assay, Traditional plant, Medical her

  • Effect of traditional plants in Sri Lanka on skin fibroblast cell number
    Elsevier, 2018
    Co-Authors: Katsura Sano, Takao Someya, Kotaro Hara, Yoshimasa Sagane, Toshihiro Watanabe, R.g.s. Wijesekara
    Abstract:

    This article describes the effects of extracts of several plants collected in Sri Lanka on the cell number of human skin fibroblasts. This study especially focuses on the plants traditionally used in indigenous systems of medicine in Sri Lanka, such as Ayurveda, as described below (English name, “local name in Sri Lanka,” scientific name). Bougainvillea plant, “bouganvilla,” Bougainvillea grabla (Nature׳s Beauty Creations Ltd., 2014) [1], purple fruited pea eggplant,”welthibbatu,” Solanum trilobatum (Nature׳s Beauty Creations Ltd., 2014) [2], country borage plant, “kapparawalliya,” Plectranthus amboinicus (Nature׳s Beauty Creations Ltd., 2014) [3], malabar nut plant, “Adhatoda,” Justicia Adhatoda (Nature׳s Beauty Creations Ltd., 2014) [4], long pepper plant,”thippili,” Piper longum (Nature׳s Beauty Creations Ltd., 2014) [5], holy basil plant, “maduruthala,” Ocimum tenuiflorum (Nature׳s Beauty Creations Ltd., 2014) [6], air plant, “akkapana,” Kalanchoe pinnata (Nature׳s Beauty Creations Ltd., 2014) [7], plumed cockscomb plant, “kiri-henda,” Celosia argentea (Nature׳s Beauty Creations Ltd., 2014) [8], neem plant,”kohomba,” Azadirachta indica (Nature׳s Beauty Creations Ltd., 2014) [9], emblic myrobalan plant, “nelli,” Phyllanthus emblica (Nature׳s Beauty Creations Ltd., 2014) [10]. Human skin fibroblast cells were treated with various concentration of plant extracts (0–3.0%), and the cell viability of cells were detected using calcein assay. The cell viabillity profiles are provided as line graphs. Keywords: Cell number, Fibroblasts, Calcein assay, Traditional plant, Medical her

  • Data on the inhibitory effect of traditional plants from Sri Lanka against tyrosinase and collagenase
    Elsevier, 2018
    Co-Authors: Jun Ito, Takao Someya, Kotaro Hara, Yoshimasa Sagane, Toshihiro Watanabe, R.g.s. Wijesekara, Takao Myoda, Kazuki Toeda, Satoshi Nojima
    Abstract:

    This article describes the inhibitory effects of extracts from 25 plants harvested in Sri Lanka against tyrosinase and collagenase. Inhibitors of these enzymes are common ingredients in cosmetics and medications, which help protect the skin against hyperpigmentation and premature aging. The article also discusses the polyphenol content of the extracts, which is well known to possess antioxidant properties. The extract data from the following plants, which have a long history in Sri Lankan traditional medicine, such as Ayurveda, have been provided: English name, “local name in Sri Lanka,” (scientific name). Indian copperleaf plant, “kuppameniya,” (Acalypha indica); red sandalwood, “madatiya”, (Adenanthera pavonina); balipoovu plant, “polpala,” (Aerva lanata); snap ginger, “heen araththa,” (Alpinia calcarata); bael fruit, “beli,” (Aegle marmelos); coastal waterhyssop, “lunuwila,” (Bacopa monnieri); porcupine flower, “katu karandu,” (Barleria prionitis); balloon-vine plant, “wel penera,” (Cardiospermum halicacabum); water caltrop, “Katupila,” (Flueggea leucopyrus); Indian sarsparilla, “iramusu,” (Hemidesmus indicus); malabar nut plant, “Adhatoda,” (Justicia Adhatoda); wood apple, “divul,” (Limonia acidissima); holy basil plant, “maduruthala,” (Ocimum tenuiflorum); emblic myrobalan plant, “nelli,” (Phyllanthus emblica); long pepper plant,”thippili,” (Piper longum); country borage plant, “kapparawalliya,” (Plectranthus amboinicus); common sesban, “wel murunga,” (Sesbania sesban); turkey berry, “gona batu,” (Solanum rudepannum Dunal); purple fruited pea eggplant,”welthibbatu,” (Solanum trilobatum); black plum, “madan,” (Syzygium cumini); crape jasmine, “wathusudda,” (Tabernaemontana divaricate); purple tephrosia, “pila,” (Tephrosia purpurea); Chinese chaste tree, “nika,” (Vitex negundo); and arctic snow, “suduidda,” (Wrightia antidysenterica). The inhibitory effects of these plant extracts on tyrosinase and collagenase, as well as polyphenol contents in the extracts, are detailed in Table 1