| the pharmacological and pathological studies on taiwan folk medicine (viii): the anti-inflammatory and liver protective effects of "mu-mien". | the bark, xylem of stem, and root of (1) bombax malabarica dc. and (2) ceiba pentandra gaertn. are marked as "mu-mien" in taiwan. in order to clarify the pharmacological effects of these three parts, anti-inflammatory and liver protective effect were evaluated with carrageenan-induced paw edema and ccl4-induced hepatotoxicity in rats. the statistical analysis (anova) shows that all of the treatment used exhibited significant anti-inflammatory activity against carrageenan-induced edema. furthermo ... | 1992 | 1519554 |
| "stepping-sticks" and "seat-sticks": new types of tools used by wild chimpanzees (pan troglodytes) in sierra leone. | in tenkere, sierra leone, a community of wild chimpanzees (pan troglodytes verus) spent long hours eating the fruits and flowers of the kapok (ceiba pentandra) tree. the branches of this species are covered in sharp thorns which make movement in their high canopies problematic for the chimpanzees. in an apparent attempt to increase their mobility and to ease the discomfort of lengthy bouts of eating in these trees, some of the tenkere chimpanzees have been observed using stick tools as foot ("st ... | 1997 | 9064197 |
| two new isoflavones from ceiba pentandra and their effect on cyclooxygenase-catalyzed prostaglandin biosynthesis. | the new isoflavone glucoside vavain 3'-o-beta-d-glucoside (1) and its aglycon, vavain (2), were isolated from the bark of ceiba pentandra, together with the known flavan-3-ol, (+)-catechin, these novel structures were elucidated by one- and two-dimensional nmr experiments and by ms, ir, and uv spectroscopy as 5-hydroxy-7,4',5'-trimethoxyisoflavone 3'-o-beta-d-glucoside (1) and 5,3'-dihydroxy-7,4',5'-trimethoxyisoflavone (2), respectively. the compounds were isolated following bioactivity-directe ... | 1998 | 9461647 |
| inhibitory effects of vietnamese medicinal plants on tube-like formation of human umbilical venous cells. | seven of 58 plant materials from vietnamese medicinal plants showed strong to moderate inhibitory activity on the tube-like formation induced by human umbilical venous endothelial cells in the in vitro angiogenesis assay. these plant materials include the herb of ephedra sinica, leaves and stem of ceiba pentandra, seed of coix lachryma-jobi, rhizome of drynaria fortunei, fruits and stem of illicium verum and stem of bombax ceiba. of these, the methanol extracts of the herb of ephedra sinica and ... | 2003 | 12601670 |
| hypoglycemic properties of aqueous bark extract of ceiba pentandra in streptozotocin-induced diabetic rats. | the claim by nigerian traditional herbal medicine practitioners that the silk cotton tree, ceiba pentandra l. gaertn (bombacaceae) barks extract has antidiabetic properties was investigated. diabetes mellitus was induced with streptozotocin and graded doses of the aqueous bark extract were then administered ad libitum in drinking water to the experimentally diabetic rats for 28 days. administration of the aqueous bark extract caused a statistically significant reduction in plasma glucose level i ... | 2003 | 12648806 |
| chemical composition and nutritive value of kapok seed meal for broiler chickens. | 1. mechanically extracted kapok (ceiba pentandra) seed meal (ksm) contained 324 g crude protein, 97 g ether extract, 289 g fibre, 94 g ash, 128 g available carbohydrates, 3-8 g calcium, 11 g phosphorus, 10.4 g cyclopropenoid fatty acids and 15 g tannins per kg. 2. in a 4 x 2 factorial experiment, ksm was incorporated in broiler starter and finisher feeds at 0, 30, 60 and 90 g/kg, replacing sunflower meal (sfm) w/w; without and with multi-enzyme supplementation. 3. no significant differences were ... | 2003 | 12964636 |
| evaluation of medicinal plants from mali for their in vitro and in vivo trypanocidal activity. | water, methanol and dichloromethane extracts prepared from various parts of 40 medicinal plant species from mali were investigated for their trypanocidal activity against trypanosoma brucei brucei. of a total of 165 extracts tested in vitro in the low inoculation long incubation test (lilit), 24 extracts showed a high trypanocidal activity. using the long-term viability assay (ltva) for corroboration of the results of the 24 extracts, it was found that 15 samples had minimum inhibitory concentra ... | 2006 | 16188409 |
| antidiabetic effect of ceiba pentandra extract on streptozotocin-induced non-insulin-dependent diabetic (niddm) rats. | the aim of this work was to investigate the effect of daily oral administration of root bark methylene chloride/methanol extract of ceiba pentandra (linn) in streptozotocin-induced type-2 diabetic rats, and the effect of this treatment on the physiological and metabolic parameters that are related in diabetic animals. the diabetic rats were separated into four groups and each given the following samples by gavage, daily for 28 days: vehicle (diabetic control), ceiba pentandra extract at the dose ... | 2006 | 20162071 |
| protective effect of stem bark of ceiba pentandra linn. against paracetamol-induced hepatotoxicity in rats. | the present study reports protective activity of ethyl acetate fraction of methanol extract of stem bark of ceiba pentandra against paracetamol-induced liver damage in rats. the ethyl acetate fraction (400 mg/kg) was administered orally to the rats with hepatotoxicity induced by paracetamol (3 gm/kg). silymarin (100 mg/kg) was used as positive control. high performance thin layer chromatography (hptlc) fingerprinting of ethyl acetate fraction revealed presence of its major chemical constituents. ... | 2010 | 21808535 |
| isolation of endophytic bacteria from arboreal species of the amazon and identification by sequencing of the 16s rrna encoding gene. | endophytic bacteria from three arboreal species native to the amazon (carapa guianenses, ceiba pentandra, and swietenia macrophylla), were isolated and identified, through partial sequencing of the 16s rrna encoding gene. from these, 16 isolates were obtained, although, when compared to sequences deposited in genbank, only seven had produced identifiable fragments. bacillus, pantoea and two non-culturable samples were identified. results obtained through sequence analysis revealed low genetic di ... | 2011 | 22215973 |
| identification of bacillus species occurring in kantong, an acid fermented seed condiment produced in ghana. | kantong is a condiment produced in ghana by the spontaneous fermentation of kapok tree (ceiba pentandra) seeds with cassava flour as an additive. fermentation is over a 48h period followed by a drying and a kneading process. although lactic acid bacteria (lab) have previously been identified other micro-organisms may also be involved in the fermentation process. in this study we examined the occurrence of aerobic endospore-forming bacteria (aeb) in raw materials, during fermentation and in the f ... | 2014 | 24747716 |
| alpha-amylase inhibition and antioxidative capacity of some antidiabetic plants used by the traditional healers in southeastern nigeria. | oxidative stress plays a significant role in the pathogenesis of metabolic syndrome including diabetes mellitus (dm). the inhibition of alpha-amylase is an important therapeutic target in the regulation of postprandial increase of blood glucose in diabetic patients. the present study investigated the alpha-amylase inhibitory and antioxidant potential of selected herbal drugs used in the treatment of dm by the traditional healers in isiala mbano and ikwuano regions of southeastern nigeria. antiox ... | 2017 | 28367491 |
| scarlet macaw, ara macao, (psittaciformes: psittacidae) diet in central pacific costa rica. | from 1993 to 1997, we observed scarlet macaw (ara macao) feeding behavior in central pacific costa rica. feeding data acquired in this study were not collected systematically, but opportunistically whenever macaws were observed feeding. to supplement feeding observations, we conducted interviews with local residents. scarlet macaws fed on seeds, fruits, leaves, flowers and/or bark of 43 plant species. various plant parts eaten by macaws from several tree species contain secondary compounds toxic ... | 2006 | 18491633 |
| assessing the extent of "conflict of use" in multipurpose tropical forest trees: a regional view. | in the context of multiple forest management, multipurpose tree species which provide both timber and non-timber forest products (ntfp), present particular challenges as the potential of conflicting use for either product may be high. one key aspect is that the magnitude of conflict of use can be location specific, thus adding complexity to policy development. this paper focuses on the extent to which the potential for conflict of use in multipurpose tree species varies across the amazonian lowl ... | 2013 | 24061084 |
| treatment of leishmaniasis in the oyapock basin (french guiana): a k.a.p. survey and analysis of the evolution of phytotherapy knowledge amongst wayãpi indians. | cutaneous leishmaniasis is a neglected disease with a high incidence in french guiana, mainly in the middle and upper oyapock basin, where amerindian and some brazilian people live. the main goals of this work were (i) to assess the knowledge about leishmaniasis in the different populations of the middle and upper oyapock basin, (ii) to study the therapeutic strategies adopted by people affected by leishmaniasis and (iii) to document the use of phytotherapeutic remedies for leishmaniasis. knowle ... | 2011 | 21816216 |
| physicochemical characterization of cellulose nanocrystal and nanoporous self-assembled cnc membrane derived from ceiba pentandra. | this research involves the rare utilisation of the kapok fibre (ceiba pentandra) as a raw material for the fabrication of cellulose nanocrystal (cnc) and self-assembled cnc membranes. the isolation of cnc from ceiba pentandra began with the extraction of cellulose via the chemical alkali extraction by using 5wt% naoh, followed by the typical acidified bleaching method and, finally, the cnc production through acid hydrolysis with 60wt% h2so4 at the optimum time of 60min. the prepared cnc was then ... | 2017 | 27987909 |
| field evidence of strong differential pollen placement by old world bat-pollinated plants. | sympatric plant species that share pollinators potentially compete for pollination and risk interspecific pollen transfer, but this competition can be minimized when plant species place pollen on different areas of the pollinator's body. multiple studies have demonstrated strong differential pollen placement by sympatric plant species under laboratory conditions; however, field evidence collected in natural settings is less common. furthermore, it is unknown whether precise pollen placement on t ... | 2017 | 27864223 |
| evaluation of ceiba pentandra (l.) gaertner bark extracts for in vitro cytotoxicity on cancer cells and in vivo antitumor activity in solid and liquid tumor models. | the stem bark of ceiba pentandra (l.) gaertner is claimed to be useful in the treatment of tumors in the southern part of india. this plant possesses a number of sesquiterpenoids and isoflavones which are known for their anticancer properties. the present study was designed to scientifically evaluate the cytotoxic potential of bark extracts in in vitro on ehrlich ascites carcinoma (eac), mcf-7 and b16f10 cells and in vivo in eac (liquid tumor) model and dalton's lymphoma ascites (dla or solid tu ... | 2016 | 27456242 |
| kinetic study on microwave-assisted esterification of free fatty acids derived from ceiba pentandra seed oil. | recently, a great attention has been paid to advanced microwave technology that can be used to markedly enhance the biodiesel production process. ceiba pentandra seed oil containing high free fatty acids (ffa) was utilized as a non-edible feedstock for biodiesel production. microwave-assisted esterification pretreatment was conducted to reduce the ffa content for promoting a high-quality product in the next step. at optimum condition, the conversion was achieved 94.43% using 2wt% of sulfuric aci ... | 2016 | 27019128 |
| differential pollen placement on an old world nectar bat increases pollination efficiency. | plant species that share pollinators are potentially subject to non-adaptive interspecific pollen transfer, resulting in reduced reproductive success. mechanisms that increase pollination efficiency between conspecific individuals are therefore highly beneficial. many nocturnally flowering plant species in thailand are pollinated by the nectar bat eonycteris spelaea (pteropodidae). this study tested the hypothesis that plant species within a community reduce interspecific pollen movement by plac ... | 2016 | 26482654 |
| assessment of phytochemicals and antioxidant activities of raw and germinating ceiba pentandra (kapok) seeds. | to determine the significance of germination on phytochemical constituents and non-enzymatic antioxidant activities of ceiba pentandra seed extracts. phytochemicals and antioxidant activities of raw and germinating seeds of ceiba pentandra were estimated by different methods. the levels of phytochemical constituents were influenced by germination and increased except alkaloids and tannins, which were decreased significantly during germination. among non-enzymatic antioxidants like dpph, frap, re ... | 2015 | 26442618 |
| lack of early inbreeding depression and distribution of selfing rates in the neotropical emergent tree ceiba pentandra: assessment from several reproductive events. | selfing and mixed mating systems are prevalent in many flowering plants. purging of genetic load can occur in these species, reducing negative effects of selfing. long-term studies of the temporal and spatial variation of selfing rates and inbreeding depression at the individual level are necessary to understand the forces that maintain selfing as a mating strategy in these species. | 2015 | 26101422 |
| research and application of kapok fiber as an absorbing material: a mini review. | kapok fiber corresponds to the seed hairs of the kapok tree (ceiba pentandra), and is a typical cellulosic fiber with the features of thin cell wall, large lumen, low density and hydrophobic-oleophilic properties. as a type of renewable natural plant fiber, kapok fiber is abundant, biocompatible and biodegradable, and its full exploration and potential application have received increasing attention in both academic and industrial fields. based on the structure and properties of kapok fiber, this ... | 2015 | 25597659 |
| in vitro anti-hyperglycemic and antioxidant properties of extracts from the stem bark of ceiba pentandra. | the goal of the study was to determine the antidiabetic mechanisms and the antioxidant effects of aqueous (decoction and maceration) and methanol extracts from the stem bark of ceiba pentandra. | 2014 | 25153424 |
| antioxidant activity and free radical scavenging capacity of phenolic extracts from helicteres isora l. and ceiba pentandra l. | in the present study, antioxidant activities of the phenolic extracts from h. isora fruits and c. pentandra seeds were investigated by employing established in vitro systems, which included reducing power, oh(●), dpph(●), abts(●+), linoleic acid emulsion, metal chelation and antihemolytic activity. the extracts of c. pentandra contained relatively higher levels of total phenolics and flavonoids than those of h. isora. all the extracts showed dose dependent reducing power activity and moreover, t ... | 2013 | 24425970 |
| hypoglycemic and antihyperglycemic effect of ceiba pentandra l. gaertn in normal and streptozotocin-induced diabetic rats. | ceiba pentandra (l.) gaertn, commonly called silk-cotton tree, has been extensively used by traditional medicine practitioners in northern and eastern nigeria in the control and management of diabetes. | 2013 | 24391227 |
| decreased thrombin activity by a congolese herbal medicine used in sickle cell anemia. | aqueous extracts from ceiba pentandra (malvaceae/bombacoideae) and quassia africana (simaroubaceae) are used as crude medicines for the management of sickle cell anemia (sca) in the democratic republic of congo (dr congo). since it is postulated that the pathogenesis of sca is associated with an increased blood coagulation activity, the present study is conducted to determine the effect of the two extracts on the coagulation by assessing the thrombin activity and the plasma clotting time. | 2013 | 23711829 |
| potential of ceiba pentandra (l.) gaertn. (kapok) fiber as a resource for second generation bioethanol: parametric optimization and comparative study of various pretreatments prior enzymatic saccharification for sugar production. | various pretreatments on ceiba pentandra (l.) gaertn. (kapok) fiber prior to enzymatic hydrolysis for sugar production were optimized in this study. the optimum conditions for water, acid, and alkaline pretreatments were 170°c for 45 min, 120°c for 45 min in 1.0% (v/v) h2so4 solution and 120°c for 60 min in 2.0% (v/v) naoh solution, respectively. among the three pretreatments, the alkaline pretreatment achieved the highest total glucose yield (glucose yield calculated based on the untreated fibe ... | 2013 | 23672935 |
| arbuscular-mycorrhizal networks inhibit eucalyptus tetrodonta seedlings in rain forest soil microcosms. | eucalyptus tetrodonta, a co-dominant tree species of tropical, northern australian savannas, does not invade adjacent monsoon rain forest unless the forest is burnt intensely. such facilitation by fire of seedling establishment is known as the "ashbed effect." because the ashbed effect might involve disruption of common mycorrhizal networks, we hypothesized that in the absence of fire, intact rain forest arbuscular mycorrhizal (am) networks inhibit e. tetrodonta seedlings. although arbuscular my ... | 2013 | 23460899 |
| effect of a congolese herbal medicine used in sickle cell anemia on the expression of plasminogen activators in human coronary aortic endothelial cells culture. | aqueous extract of ceiba pentandra, which is used for the management of sickle cell anemia (sca) in dr congo, exhibits antithrombin response by activation of heparin cofactor ii in vitro. this study examines the effect of the plant on the fibrinolytic activity to understand whether it can influence the coagulation-fibrinolysis system, since fibrinolysis disorder is one of the contributing causes of thrombotic crises in sca. | 2013 | 23376284 |
| root-shoot allometry of tropical forest trees determined in a large-scale aeroponic system. | this study is a first step in a multi-stage project aimed at determining allometric relationships among the tropical tree organs, and carbon fluxes between the various tree parts and their environment. information on canopy-root interrelationships is needed to improve understanding of above- and below-ground processes and for modelling of the regional and global carbon cycle. allometric relationships between the sizes of different plant parts will be determined. | 2013 | 23250916 |
| potential of ceiba pentandra (l.) gaertn. (kapok fiber) as a resource for second generation bioethanol: effect of various simple pretreatment methods on sugar production. | the importance of bioethanol currently has increased tremendously as it can reduce the total dependency on fossil-fuels, especially gasoline, in the transportation sector. in this study, ceiba pentandra (kapok fiber) was introduced as a new resource for bioethanol production. the results of chemical composition analysis showed that the cellulose (alpha- and beta-) contents were 50.7%. the glucose composition of the fiber was 59.8%. the high glucose content indicated that kapok fiber is a potenti ... | 2012 | 22595099 |
| [seed germination and key to seedling identification for six native tree species of wetlands from southeast mexico]. | wetland tree species are of importance for economic and restoration purposes. we describe the germination process and seedling morphology of six arboreal native species typical of southeastern mexico: annona glabra, ceiba pentandra, pachira aquatica, haematoxylum campechianum, coccoloba barbadensis and crataeva tapia. a total of 300 seeds per species were planted in a mixture of sand, cocoa plant husk and black soil (1:1:1), and maintained in a tree nursery with 30% artificial shade, from februa ... | 2010 | 20527471 |
| physicochemical and sorption characteristics of malaysian ceiba pentandra (l.) gaertn. as a natural oil sorbent. | ceiba pentandra (l.) gaertn (kapok) is a natural sorbent that exhibits excellent hydrophobic-oleophilic characteristics. the effect of packing density, the oil types and solvent treatment on the sorption characteristics of kapok was studied in a batch system. oil sorption capacity, retention capacity, entrapment stability and kapok reusability were evaluated. based on sem and ftir analyses, kapok fiber was shown to be a lignocellulosic material with hydrophobic waxy coating over the hollow struc ... | 2010 | 20060641 |
| removal of mercury from aqueous solutions using activated carbon prepared from agricultural by-product/waste. | removal of mercury from aqueous solutions using activated carbon prepared from ceiba pentandra hulls, phaseolus aureus hulls and cicer arietinum waste was investigated. the influence of various parameters such as effect of ph, contact time, initial metal ion concentration and adsorbent dose for the removal of mercury was studied using a batch process. the experiments demonstrated that the adsorption process corresponds to the pseudo-second-order-kinetic models and the equilibrium adsorption data ... | 2009 | 18313830 |
| the search for polyprenols in dendroflora of vietnam. | the occurrence of polyprenols in leaves of over 340 species of dendroflora in natural habitats in the regions of hanoi and hue in vietnam was studied. plant material was collected in the late autumn (october/november) during the end of a vegetation season. leaves of about 200 plant species did not contain detectable amounts of polyprenols in contrast to few systematic families, e.g. moraceae, euphorbiaceae, where polyprenols were highly abundant and their pattern could be used as a chemotaxonomi ... | 2007 | 18066396 |
| extreme long-distance dispersal of the lowland tropical rainforest tree ceiba pentandra l. (malvaceae) in africa and the neotropics. | many tropical tree species occupy continental expanses of rainforest and flank dispersal barriers such as oceans and mountains. the role of long-distance dispersal in establishing the range of such species is poorly understood. in this study, we test vicariance hypotheses for range disjunctions in the rainforest tree ceiba pentandra, which is naturally widespread across equatorial africa and the neotropics. approximate molecular clocks were applied to nuclear ribosomal [its (internal transcribed ... | 2007 | 17614916 |
| activated carbon from ceiba pentandra hulls, an agricultural waste, as an adsorbent in the removal of lead and zinc from aqueous solutions. | the ability of low-cost activated carbon prepared from ceiba pentandra hulls, an agricultural waste material, for the removal of lead and zinc from aqueous solutions has been investigated. in the batch tests experimental parameters were studied, including solution ph, contact time, adsorbent dose and initial metal ions concentration. the adsorbent exhibited good sorption potential at ph 6.0. maximum removal of lead (99.5%) and of zinc (99.1%) with 10 g/l of sorbent was observed at 50 mg/l sorbat ... | 2008 | 17416512 |
| in vitro antidrepanocytary actvity (anti-sickle cell anemia) of some congolese plants. | thirty aqueous and ethanolic extracts from 13 congolese plants were evaluated for their antidrepanocytary activity. twelve of these plants, alchornea cordifolia, afromomum albo violaceum, annona senegalensis, cymbopogon densiflorus, bridelia ferruginea, ceiba pentandra, morinda lucida, hymenocardia acida, coleus kilimandcharis, dacryodes edulis, caloncoba welwithsii, and vinga unguiculata exhibited significant activities, thus, supporting the claims of the traditional healers and suggesting a po ... | 2007 | 17113273 |
| evaluation of kapok (ceiba pentandra (l.) gaertn.) as a natural hollow hydrophobic-oleophilic fibrous sorbent for oil spill cleanup. | oil sorption capacity and hydrophobic-oleophilic characteristics of an agricultural product, kapok (ceiba pentandra), was thoroughly examined. the kapok fiber has a hollow structure with large lumen. its performance was compared with that of a polypropylene (pp), a widely used commercial oil sorbent for oil spill cleanup. the oils investigated were diesel, hydraulic oil (aws46), and engine oil (hd40). reusability of the kapok after application to various oils was also evaluated. both loose (at i ... | 2007 | 16839589 |
| removal of copper and cadmium from the aqueous solutions by activated carbon derived from ceiba pentandra hulls. | activated carbon prepared from ceiba pentandra hulls, an agricultural solid waste by-product, for the removal of copper and cadmium from aqueous solutions has been studied. parameters such as equilibrium time, effect of ph and adsorbent dose on removal were studied. the adsorbent exhibited good sorption potential for copper and cadmium at ph 6.0. c=o and s=o functional groups present on the carbon surface were the adsorption sites to remove metal ions from solution. the experimental data was ana ... | 2006 | 16191464 |
| effects of pollination by bats on the mating system of ceiba pentandra (bombacaceae) populations in two tropical life zones in costa rica. | the identity and behavior of pollinators are among the main factors that determine the reproductive success and mating system of plants; however, few studies have directly evaluated the relationship between pollinators and the breeding system of the plants they pollinate. it is important to document this relationship because the global decline in pollinators may significantly affect the breeding systems of many animal-pollinated plants, particularly specialized systems. ceiba pentandra is a trop ... | 2005 | 21652412 |
| a new naphthoquinone from ceiba pentandra. | a new naphthoquinone, 2,7-dihydroxy-8-formyl-5-isopropyl-3-methyl-1,4-naphthoquinone (1) together with a known naphthoquinone, 8-formyl-7-hydroxy-5-isopropyl-2-methoxy-3-methyl-1,4-naphthoquinone (2), has been isolated from the heartwood of ceiba pentandra. the structures of 1 and 2 have been elucidated by extensive 1d and 2d nmr experiments. | 2003 | 12931857 |
| a new isoflavone glycoside from ceiba pentandra (l.) gaertner. | from the 80% etoh extract of the bark of ceiba pentandra (l.) gaertner, a new isoflavone glycoside was isolated along with known isoflavones, vavain and vavain glucoside. the structure was elucidated by spectroscopic analysis as 5-hydroxy-7,4',5'-trimethoxyisoflavone 3'-o-alpha-l-arabinofuranosyl(1-->6)-beta-d-glucopyranoside. | 2002 | 11911207 |
| new isoflavones from ceiba pentandra. | two new isoflavones, pentandrin (1) and pentandrin glucoside (2), were isolated from the stem barks of ceiba pentandra along with beta-sitosterol and its 3-o-beta-d-glucopyranoside, which was isolated for the first time from this plant. the structures of these compounds were elucidated with the help of spectroscopic techniques, while the structure of 1 was unambiguously confirmed by single-crystal x-ray diffraction studies. | 2000 | 10846755 |
| effects of leaf litter species on macroinvertebrate community properties and mosquito yield in neotropical tree hole microcosms. | detritus quality and quantity affect macroinvertebrate productivity and distribution in many freshwater ecosystems. this study experimentally investigated the effects of leaf litter from ceiba pentandra, dipteryx panamensis, ficus yoponensis, and platypodium elegans on macroinvertebrate species composition, richness, and abundance in artificial water-filled tree holes in a lowland moist forest of panama. species composition was similar among treatments, but species richness and longevity differe ... | 1999 | 28308046 |
| photosynthesis of a tropical canopy tree, ceiba pentandra, in a lowland forest in panama. | diel (24 h) courses of co(2) and water-vapor exchange of ceiba pentandra (l.) gaertn. (bombacaceae) were studied under natural tropical conditions in the semi-evergreen moist forest of barro colorado island, panama. measurements were conducted from early february 1991 (dry season), shortly after new leaves emerged, until mid-october 1991 (wet season), when leaves were shed. rates of net co(2) uptake were significantly higher in the dry season than in the wet season, and showed a linear decrease ... | 1994 | 14967618 |
| two new sesquiterpene lactones from ceiba pentandra. | two new sesquiterpene lactones showing moderate antimicrobial activity have been isolated from the root bark of ceiba pentandra (bombacaceae) in addition to the known compounds 8-formyl-7-hydroxy-5-isopropyl-2-methoxy-3-methyl-1,4-naphthaquinone+ ++ [1], and 7-hydroxycadalene [2]. the new compounds were characterized as 2,7-dimethoxy-5-isopropyl-3-methyl-8,1-naphthalene carbolactone [3] and 2-hydroxy-5-isopropyl-7-methoxy-3-methyl-8,1-naphthalene carbolactone [4] by chemical and spectroscopic st ... | 1993 | 8133294 |
| nutritive value of four wild leafy vegetables in côte d'ivoire. | the overall composition, vitamin, carotene and mineral contents of the leaves of four wild plants (ceiba pentandra, grewia carpinifolia, hibiscus congestiflorus, triplochiton scleroxylon) used as vegetables in the traditional cuisine in côte d'ivoire were determined. the results are within the range of data published for domesticated leafy vegetables. the leaves revealed to be good sources of iron and calcium. special attention is drawn to their contents of mucilages. | 1993 | 8300336 |
| [tropical woods and contact eczema]. | an enquiry was carried out in zaire among workers handling different woods. the aim of the investigation was to establish which woods provoke undesirable reactions of the skin and mucous membranes. besides the well known toxic woods, 6 types of wood were identified, which had not been known to be cause of these reactions: --autranella congolensis (dermatitis; ocular and respiratory manifestations); --drypetes gossweileri (dermatitis; ocular and respiratory manifestations); --ceiba pentandra (ess ... | 1982 | 6218978 |
| an investigation into the health of kapok workers. | kapok is a cotton-like fibre obtained from the fruits of ceiba pentandra, a tree surgeon in tropical countries. in sri lanka ginning of kapok is usually done by machine in poorly ventilated buildings where workers are exposed to a great deal of dust. forty-one workers in five ginneries in colombo were examined. mill fever occurred in 28 (77-8%) of the 36 workers who were able to give a history. chronic bronchitis, which is an uncommon condition in sri lanka, was detected to seven workers with an ... | 1977 | 911688 |
| cycles of activity, group composition, and diet of lemur mongoz mongoz linnaeus 1766 in madagascar. | a preliminary study of the ecology and behavior of lemur mongoz mongoz was carried out in the northwest of madagascar. the animals were observed for approximately 250 h in july till august, 1973, and for 50 h in june, 1974. l.m.mongoz has been reported to be diurnal and to live in groups of 6-8 individuals. however, we found the animals to be nocturnal and that groups contained an adult male, an adult female and their offspring (groups numbering from 2 to 4 individuals). l.m.mongoz is thus the o ... | 1976 | 827480 |