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... 1 Necrobia ruficollis bred abundantly in the “Fly Room” at the Imperial College of Science, London, in 1917–8. The larvae lived in the debris in the vessels in which houseflies were bred. This debris consisted of remains of food provided for the fly‐maggots (a mixture of bread or bran, casein, and banana or beetroot), sawdust, and numbers of empty puparia. 2 During long periods in which the room‐t ...
... In the banana plantations in Costa Rica four species of Lepidoptera pass their life cycle on the banana plant, and their larvae utilize the leaves of this plant for food. The species are Ceramidia butleri, Caligo memnon, Opsiphanes tamarindi, and Sibine apicalis. C. butleri is the most abundant. Laboratory evidence, when compared with observations in the field, indicates that C. butleri population ...
Heliconia bihai; Protozoa; arthropods; bananas; bracts; community structure; insect larvae; laboratory experimentation; wild flowers; Puerto Rico
Abstract:
... Observations of communities living in water held in the bracts of flowers of the wild banana, Heliconia bihai, in Puerto Rico show mosquito larvae to have very great influence in determination of community structure. These larvae quickly eliminate all or nearly all Protozoa and micro—Metazoa (other than arthropods) which, in the absence of mosquito larvae, are abundant in Heliconia—held water. Lab ...
... Spectral analysis is applied to weekly supply and price series for bananas traded on the Sydney wholesale market. Many interesting features are revealed such as the pronounced seasonal component and the two week lag structure between the supply and price series. These results are discussed in relation to the known behaviour of the market and some implications for marketing decisions are tentativel ...
... Two parent materials of soils; namely tertiary sandstone and mudstone, as well as several soils planted with various crops were investigated by means of thin-layer chromatography and gas chromatography for their lipid content. The total free fatty acids were found in greater quantity and variety than the fatty acids of the triglycerides of most of the materials studied. In addition to small amount ...
... From laboratory data of flying and resting metabolism and field data on time budgets of territorial male Eulampis jugularis hummingbirds we were able to estimate caloric energy budgets associated with territorial behavior. The relative time and energy expenditures for territorial defense, foraging, and sitting varied in territories with different species of flowers. For example, territories center ...
Musa acuminata; ammonium; bananas; fertilizers; laboratory experimentation; mineralization; nitrites; nitrogen; soil; temperature
Abstract:
... The mineralization of ureaform in the soil has been observed during the three weeks following application in a small plot of a banana (Musa Cavendishii, var. Cavendish) plantation at two different seasons of the year. In the cooler season ammonium and nitrite accumulated and persisted for 2 weeks. In the warmer season, only ammonium accumulated during 2 days. The rate of mineralization, calculated ...
... The spatial and temporal distributions of the egg and larva of Nacoleia octasema (Meyrick) in relation to the banana bunch were studied in north Queensland. The preferred oviposition site is dependent on the stage of inflorescence development; in early stages of bunching the pseudostem and leaf petioles are preferred whereas later the spade leaf and bracts are preferred. The development of larvae ...
Chrysomelidae; Heliconia; Magnoliopsida; Megalopyge; Musa; Sibine; alternative hosts; bananas; chemical defenses; herbivores; host plants; insects; instars; larvae; leaves; metabolism; nitrogen; nitrogen content; pests; rearing; starvation; tropical rain forests; Costa Rica; North America; South America
Abstract:
... Efficiencies of food use, growth rates, and consumption rates were measured for larvae of eight tropical insect species, reared upon normal and fertilized Heliconia species (Zingiberales: Heliconiaceae) and Musa sp. (Zingiberales: Musaceae) in Costa Rica. Cephaloleia consanguinea and Chelobasis perplexa (Coleptera: Chrysomelidae, Hispinae) feed only on Heliconia. Caligo memnon and Opsiphanes tamar ...
Musa; Plethodontidae; Tillandsia; acclimation; ambient temperature; bananas; body temperature; correlation; direct contact; microhabitats; salamanders and newts; temperature profiles; thermoregulation; tropics
Abstract:
... In a substrate thermal gradient in the laboratory, seven species of neotropical plethodontid salamanders exhibited distinct thermal preferences. The mean substrate temperature selected in the gradient (preferred body temperature, PBT) was affected by acclimation temperature and feeding in some species, and was negatively correlated with the elevation at which each species was collected. Regulation ...
... DOP (Dioctyl Phtalate) is a chemical substance which its function as plasticizer in PVC compound preparation, while the function of fibre of banana stem (musaceae) is a filler. The used of banana stem in this research can improve impact resistance of the compound as well. So the addition of DOP and fibre of banana stem influnces the properties of impact resistance and hardness. The optimum value o ...
... This research is an experiment which use plastic material for making enternit. The plastic material is made of PVC resin 100 phr. by adding ingredients DOP 35 phr., EPO 5 phr., BaCdZn 3.5 phr., Stearic Acid 0.75 phr., CaCO3 varied 50-90 phr., and fibre of banana stem 20-40 phr. The experiment result proved that the PVC plastic material can made enternit sheet. The optimum value of physical propert ...
... Second order polynomial equations are generally used to estimate fertilizer response curves. However when new crops are introduced, and especially in the lesser developed tropics, experimental data are often inadequate for their application; consequently alternative functions might be considered. This study was conducted to develop a simple differential equation to predict fertilizer response. The ...
... This study was conducted to investigate the effects of six coconut cropping patterns on the soil properties and nutrient element status of coconut leaves. The experiments were carried out from August 1984 to May 1985 in Silang, Cavite, Philippines. Data on‑soil properties and nutrient element starus of coconut leaves were statistically analyzed in Randomized Block Design with three replications. ...
... Tropical volcanic ash soils are commonly associated within chronosequences and they usually sustain intensive agricultural use. In the Mungo plain, Western Cameroon (Africa), such soils are associated with the following weathering sequence: basaltic ash → allophane → halloysite → kaolinite. This paper was aimed at studying the cation exchange properties of six soils representative of such sequence ...
... Freezing preservation of banana (Musa cavendishii, var. enana) was investigated. Microwave treatment of banana slices at 650 watts for 2 min or immersion of whole peeled fruits in boiling water for 11 min followed by freezing at -24 degrees C inhibited color deterioration in the frozen product. Treatments showed different effectiveness depending on the enzymatic system studied [polyphenoloxidase ( ...
... The wild bananas (Musa) were described in numerical terms many years ago, well before ‘numerical taxonomy’ became popular. Those descriptions, slightly supplemented, are here subjected to analysis by modern methods. Principal co‐ordinate and clustering techniques give essentially similar results. Five groupings, rather than the four sections traditionally recognized, can be discerned. The fifth gr ...
... The olfactory discrimination ability in a fruit-eating bat, Carollia perspicillata, was investigated. In a food-rewarded flight training procedure, four animals were taught to choose one of two odors simultaneously presented in a three-choice apparatus. Carollia chose the odor of ripe banana over that of unripe banana in a spontaneous choice test. With the same method, the bats significantly prefe ...
Carpophilus hemipterus; searching behavior; bioassays; insect traps; bananas; chemical composition; volatile compounds; fungi; wind tunnels; insect control; biological control
Abstract:
... The chemical basis underlying orientation to fruit and fungal odors was investigated for the dried-fruit beetle, Carpophilus hemipterus (L.). in wind-tunnel bioassays of walking and flight response from 1.8 m, beetles were attracted to odors of the yeast Saccharomyces cerevisiae on agar, aseptic banana, or banana inoculated with S. cerevisiae, although both banana substrates elicited greater respo ...
... The searching behaviour of two aphid parasitoids, Lysiphlebus testaceipes (Cresson) and Aphidius colemani Viereck (Hymenoptera, Aphidiidae), was analysed. Both species searched banana plants (Musa spec.) infested with the banana aphid Pemalonia nigronervosa Coq. in a different way. L. testaceipes restricted its search to open plant structures and avoided concealed areas. A. colemani partitioned it ...
... This work was carried out to investigate the relative roles of phosphofructokinase and pyrophosphate-fructose-6-phosphate 1-phosphotransferase during the increased glycolysis at the climacteric in ripening bananas (Musa cavendishii Lamb ex Paxton). Fruit were ripened in the dark in a continuous stream of air in the absence of ethylene. CO2 production, the contents of glucose 6-phosphate, fructose ...
apple juice; bananas; honey; Mentha; plant fats and oils; enantiomers; essential oils; flavor; food chemistry; gas chromatography
Abstract:
... Multidimensional gas chromatography (MDGC), employing heart-cutting techniques from a polar and nonchiral preseparation column onto a chiral main column, coated with heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin as the chiral stationary phase, is proved to be a rather sensitive method of high selectivity to differentiate the enantiomers of 2-methylbutanoic acid (esters), chiral monoterpenes, alka ...
... An efficient method for the determination of nanogram levels of cadmium in food and feed crops is described. Plant samples from the coast of the province of Granada (Spain) were analyzed by electrothermal atomic absorption spectrometry of tissues previously treated in a microwave acid bomb. The samples were injected through a graphite tube with a L'vov platform. The concentrations of cadmium in fo ...
... Host orientation by two nitidulid beetles was compared: Stelidota geminata (Say), which is very broad in its' host range, and Stelidota octomaculata (Say), a species whose feeding is restricted primarily to acorns. In a no-choice assay, both species responded to all food substrates offered and neither showed a significant preference among substrates (except banana versus wood fungi for S. octomacu ...
... High-resolution carbon-13 NMR spectra of intact fruit tissues (grape, peach, persimmon, banana, and apple) were obtained while spinning the sample at the 'magic angle' (MAS) to improve resolution. Only low speeds were required (a few hundred hertz) to reduce susceptibility broadening, which decreased as apple > banana > grape. Fructose, glucose, and sucrose resonances appeared with correct chemica ...
Musa paradisiaca; bananas; developing countries; information processing; land evaluation; plantations; soil; soil map; soil surveys; statistics; Costa Rica
Abstract:
... In most soil surveys, and particularly those carried out in developing countries, the bulk of recorded soil data is on an ordinal measurement scale. This determines the type of statistics and techniques that can be used for data processing. For example, with ordinal data the mode, median, and range can be used as summary statistics. For describing the spatial structure of ordinal data we propose t ...
... Changes in both solid-phase and liquid-phase components were observed by proton (1H) nuclear magnetic resonance (NMR) on intact samples of edible banana tissue (pulp) during ripening. Solid-selective cross-relaxation NMR showed that rigid components dominated by starch decreased from 20% of fresh weight in the mature green stage to 2.0% in the ripe yellow stage. Transverse relaxation measurements ...
... High-resolution 1H (proton) NMR spectra were obtained on intact fruit tissues (grape, banana, and apple). Liquid-phase component line widths showed field-dependent broadening due to magnetic susceptibility effects; the effect was larger in more physically heterogeneous tissues (apple > banana > grape). Magic angle spinning (MAS) reduced susceptibility broadening, while water peak suppression incre ...
... The volatiles of the Delicious banana were analyzed by gas chromatography and a combined gas chromatograph-mass spectrometer. Eighty-six components were identified for the first time in banana among a total of 152 components. The acetate, butanoate, 3-methylbutanoate, and pentanoate esters of hex-4(Z)-en-1-ol, hept-4(Z)-en-2-ol, oct-4(Z)-en-1-ol oct-5(Z)-en-1-ol, and dec-4(Z)-en-1-ol were newly fo ...
... With progressive ripeness there is a decrease in starch and an increase in free sugar content of bananas. The starch also is considered to be poorly digestible. Therefore, we decided to study plasma glucose, serum insulin, C-peptide, and plasma glucagon responses to bananas with increasing degrees of ripeness. Seven male subjects with untreated noninsulin-dependent diabetes mellitus ingested 50 g ...
... Low numbers of conidia of Colletotrichum musae (10–50) applied directly to the surface of freshly cut banana crowns caused extensive rot development. At least 20 times more conidia of Fusarium pallidoroseum were required to cause comparable levels of crown rot. Examination of the relative pathogenicity of the major fungal species involved in development of crown rot, C. musae, F. pallidoroseum, Fu ...
... The potential of different agro-wastes like green grass (Cynodon dactylon (L.)), bagasse, algae (Enteromorpha spp.), banana stem and water hyacinth (Eichhornia crassipes) in combination with cattle dung for methane production by anaerobic digestion have been evaluated. The results indicate that these wastes can be exploited for methane generation in combination with cattle dung. Best results were ...
... A study was conducted to determine the effects of banana maturity (less mature; maturity stage 3, more mature; maturity stage 7), heat treatment of banana puree, heat pasteurization of juice, and ultrafiltration (UF) of juice on color, polyphenoloxidase (PPO) activity, and flavor of puree and juice. Heating puree to 90C inactivated PPO and reduced browning in puree and juice, especially in puree f ...
... The impacts of four different management systems on diversity of ground—foraging ants were examined to assess potential for conservation of biological diversity in human—influenced agricultural or agroforestry systems. Using a variety of indices, diversity was measured along a gradient of anthropogenically disturbed habitats. The gradient, in terms of increasing levels of disturbance, ranged from ...
potatoes; apples; bananas; benzimidazole fungicides; fungicide residues; extraction; chemical analysis; high performance liquid chromatography
Abstract:
... An analytical method employing supercritical fluid extraction (SFE) of the benzimidazole fungicides thiabendazole, benomyl/carbendazim, and thiophanate-methyl was developed and tested with potato, banana, and apple matrices. Ion-pairing HPLC coupled with UV absorbance or fluorescence detection was used for analysis. Sample preparation involved shredding a 100 g sample, mixing a 3 g subsample with ...
... In many postharvest fruit diseases, fungi remain latent until the fruit ripens. How the fungus times its infection at ripening of the host is not known. We have found that the volatiles produced by the climacteric tomato, avocado, and banana fruits induce germination and appressorium formation in Colletotrichum gloeosporioides and Colletotrichum musae. Exposure of the spores of these fungi to ethy ...
... Nucleic acids extracted from partially purified banana bunchy top virus (BBTV) consisted of 20 Kb DNA, 0.9–1.1 Kb DNA and 0.3 Kb RNA. Partially purified BBTV preparations predigested with DNase and RNase before particle disruption and nucleic acid isolation yielded only the 0.9–1.1 Kb DNA, but no corresponding nucleic acid band was obtained in total nucleic acid isolated from healthy banana tissue ...
bananas; microirrigation; semiarid zones; economic analysis; Puerto Rico
Abstract:
... Five irrigation regimes based on class A pan factors ranging from 0.25 to 1.25 were used to obtain fractions of the potential evapotranspiration and to evaluate their influence on yield and other crop traits. Results were extrapolated to make projections on productivity, gross sales and irrigation costs incurred in the operation of a 20-ha farm of drip-irrigated plantains (cv. Maricongo) or banana ...
... Starch contents, respiration rates, sucrose synthase (SS) activity, and sucrose phosphate synthase (SPS) activity in crude extract or in partially purified preparations were comparatively studied during fruit development and ripening in either attached or detached bananas. Data showed that while SS activity is almost abolished during ripening, SPS activity increased concomitantly to starch disappe ...
gas exchange; adenosine monophosphate; postharvest physiology; metabolites; carbohydrate metabolism; glucose; starch; fructose; degradation; temporal variation; sugar phosphates; pyruvic acid; sucrose; adenosine triphosphate; plant tissues; biosynthesis; Musa acuminata; ripening; chemical constituents of plants; bananas
Abstract:
... The effect of exogenous glucose on the major fluxes of carbohydrate metabolism in cores of climacteric fruit of banana (Musa cavendishii Lamb ex Paxton) was determined with the intention of using the effects in the application of top-down metabolic control analysis. Hands of bananas, untreated with ethylene, were allowed to ripen in the dark at 21 degrees C. Cores were removed from climacteric fru ...
... Bacillus subtilis CBTK 106, isolated from banana wastes, produced high titres of alpha-amylase when banana fruit stalk was used as substrate in a solid-state fermentation system. The effects of initial moisture content, particle size, cooking time and temperature, pH, incubation temperature, additional nutrients, inoculum size and incubation period on the production of alpha-amylase were character ...
Bactrocera dorsalis; Bactrocera latifrons; Carica papaya; Ceratitis capitata; Citrus aurantiifolia; Fopius arisanus; Mangifera indica; Musa paradisiaca; Terminalia catappa; Zeugodacus cucurbitae; bananas; eggs; females; fruit flies; fruits; host preferences; laboratory rearing; limes; mangoes; oviposition; parasitism; parasitoids; progeny; sex ratio
Abstract:
... The host suitability of the oriental fruit fly, Bactrocera dorsalis (Hendel), for development of Biosteres arisanus (Sonan), a braconid parasitoid, was compared with three other fruit fly species, namely, Mediterranean fruit fly, Ceratitis capitata Weidemann, melon fly, Bactrocera cucurbitae Coquilett, and Malaysian fruit fly, Bactrocera latifrons (Hendel). In addition, effects of five different f ...
water content; bananas; food quality; osmotic pressure; diffusion; dried foods; color; texture; air drying
Abstract:
... Ripe banana, cut to 10 mm thick slabs were osmotically treated in sugar solutions of 35, 50 and 65 degrees Brix for 36 h. The initial moisture content fell from a value of 3.13 kg H2O DM to 2.19, 1.63 and 1.16 kg H2O kg-1 for treatment in the three solutions, respectively. These slabs, with Total Soluble Solids (TSS) contents of 26, 34 and 39 degrees Brix, respectively, as well as freshly cut but ...
United States Environmental Protection Agency; agrochemicals; aquatic environment; bananas; ecosystems; environmental assessment; environmental impact; habitat destruction; plantations; risk; risk assessment process; tropics; wildlife; Latin America
Abstract:
... Developing tropical nations have greatly expanded their agricultural production during the past decade. Substantial areas of tropical ecosystems have been altered to accommodate agriculture. Banana cultivation is responsible for much of this habitat alteration. Substantial use of agricultural chemicals is required to successfully cultivate bananas, and this has raised concern over the effects of t ...
... Diarrhea occurs frequently in the critically ill tube-fed population and may result from a multitude of causes. Despite the availability of antidiarrheal medications, diarrhea associated with enteral feedings remains a problem for clinicians and for the patients affected by it. We tested the hypothesis that administration of banana flakes would control diarrhea in critically ill patients receiving ...
agricultural soils; bacteria; bananas; carbofuran; chlordane; field experimentation; paraquat; Caribbean
Abstract:
... Indigenous bacteria from St. Vincent (West Indies) banana farm soil, enriched cultures of three isolates, and a microbial mat were tested for their ability to degrade carbofuran, chlordane, paraquat, and prophos. In single-pesticide application experiments, only 35.0% of the parent carbofuran was recovered after 21 d; paraquat recovery was 40.0%, and chlordane, 91.0%. In a mixture containing each ...
Musa paradisiaca; adverse effects; bananas; latex; models; oral administration; rats; toxicity; Brazil
Abstract:
... In Brazil, unripe banana as well as the latex obtained from the top of the inflorescence are popularly used in the treatment of gastroduodenal ulcers, especially in the poorest regions. However, adverse effects in fasted subjects treated with unripe banana have been described. Thus, the antiulcerogenic effects of Brazilian banana samples and possible toxic effects of prolonged administration of un ...
... The fermentability of commercial xylans and municipal waste hemicelluloses in the presence of Clostridium sp. (C.SAIV; ATCC 700188) has been evaluated. Teak, deal wood, banana stalk and bagasse of the municipal waste contained significant amounts (approx. 12 %-23 %) of hemicellulose. Under optimized growth conditions, the growth rate of C.SAIV was improved as indicated by an increase in the concen ...
bananas; fruit puree; heat treatment; juices; models; pH; preservatives; temperature; viscosity; water activity
Abstract:
... Flow characterization of a banana purée preserved by combined factors (slight reduction of water activity, reduction of pH, addition of preservatives and slight thermal treatment) was obtained at 5 and 25 °C. Fresh banana purée was used as a control. Preserved banana purée had thixotropic and pseudoplastic characteristics, exhibiting a defined yield stress and obeying the Weltmann and Herschel-Bul ...
... Headspace composition and glycosidically bound volatile compounds from two banana cultivars, Valery and Pequena Enana, have been studied. Glycosides were isolated from aqueous extracts of banana pulp by means of an Amberlite XAD-2 column. Volatile compounds were released by enzymatic hydrolysis using almond beta-glucosidase and further analyzed by HRGC/MS. Twenty-five main aglycons were analyzed f ...
... A group of Fusarium strains first distinguished by the production of a diffusing yellow pigment is now described as a separate species, Fusarium thapsinum. The teleomorph, Gibberella thapsina, can be formed under laboratory conditions by crossing strains of opposite mating type on carrot agar. Fusarium thapsinum was recovered from banana, maize, peanut and sorghum in Egypt, South Africa, the Phili ...
... Apparent density, true density, specific volume and internal porosity were investigated during vacuum dehydration of banana, apple, carrot and potato, at various moisture contents and pressures. The pressure was found to effect significantly the apparent density and porosity of the materials examined, while for the true density, this effect was practically negligible. In all four materials the dev ...
Muridae; Tyto alba; bananas; edge effects; forests; habitats; paddies; pellets; sea level; small mammals; vocalization; Madagascar
Abstract:
... The rare Madagascar Red Owl Tyto soumagnei was captured, radio tagged and released for study in October 1994. It ranged within an area of 210 ha from October to December 1994, and 50% of the locations were along forest edge and newly created tavies, 36% in rice fields and 14% in cultivated tavies. Nine diurnal roost sites were documented in small ravines among secondary vegetation and bananas (Mas ...
... Phosphoenolpyruvate (P-pyruvate) carboxylase from ripened banana fruit was purified to near homogeneity and a final specific activity of 20-23 U/mg protein; P-pyruvate carboxylase-kinase copurified with P-pyruvate carboxylase throughout the purification. Gel filtration FPLC indicated that the two proteins form a tightly associated 425-kDa complex. Both the 103-kDa and 100-kDa subunits of the carbo ...
... Tanzania is a net importer of dairy products despite its large cattle herd and successive government efforts to promote dairying. This paper draws on survey data to examine the financial attractiveness of dairying to smallholders in an area of high dairy potential on the slopes of Mount Kilimanjaro. On mixed farms in which coffee and bananas are the other main enterprises, producers keep small her ...
bananas; fruit pulp; ripening; texture; ethylene; storage; pH; hardness
Abstract:
... Green banana and plantain fruits were treated with ethylene or kept untreated, then stored in environmental chambers at 13, 16, 20 and 25 degrees C for 8 days. On daily basis, cylindrical samples of the fruits were compressed twice at 50 mm min-1 to 75% of the original height. Changes in the textural properties were estimated by the texture profile analysis (TPA) technique, involving such paramete ...
bananas; biodiversity; deforestation; ecosystems; ecotoxicology; environmental factors; farming systems; gold; habitat destruction; mercury; mining; pineapples; population growth; soybeans; temperate zones; toxic substances; tropics; urbanization; water quality; Caribbean; Latin America
Abstract:
... Ecotoxicology has focused almost exclusively on countries and ecosystems in temperate zones. Tropical ecosystems, which combined contain as much as 75% of the global biodiversity, have been neglected. Tropical ecosystems are under increasing threat of development and habitat degradation from population growth and urbanization, agricultural expansion, deforestation, and mining. Some of these activi ...
... Cruciferae plants, banana and coriander each showed antibacterial activity. The highest activity among the foodstuffs tested was found in the stems of wasabi. An ethereal extract from wasabi stems had potent antibacterial activity and we isolated the active compound from the extract. Instrumental analysis identified the compound as 6-methylsulfinylhexyl isothiocyanate. Some homologues of 6-methyls ...
bananas; cultivars; food storage; temperature; color
Abstract:
... Two cultivars, namely Cavendish bananas (Musa AAA Group) and plantains (Musa AAB Group) were used to study the changes in their peel color during storage at various temperatures. Gas-treated and nontreated fruits, and the L* a* b* system were used. The temperature effect on the color parameters was mainly through the interaction with the gas treatment, variety and storage time; however, redness (a ...
Zaprionus; artificial diets; bananas; fruit flies; gibberellic acid; glycogen; larvae; lipids; protein content; trehalose
Abstract:
... The influence of gibberellic acid (GA₃), a plant growth regulator (PGR), on the protein, total lipid, total carbohydrate, glycogen and trehalose contents of the banana fruit fly, Zaprionus paravittiger (Godbole and Vaidya) (Diptera: Drosophilidae), was investigated by feeding 63-h-old larvae on artificial diet containing 1000, 2000 and 4000 ppm GA₃, for 30 and 50 h. The maximum increase in the pro ...
... Bananas (cv. Hochuchu) were harvested at 80, 90 and 100 days after inflorescence emergence for quality evaluation. At harvest, the 80-day sample had the highest flesh firmness and starch content, followed in order by the 90-day and the 100-day samples. The opposite was found for total sugars content. Titratable acidity in the 100-day fruit was significantty greater than those in the 80-day and 90- ...
... Pressurized hot water was used to extract two fungicides, thiabendazole (TBZ) and carbendazim (MBC), from agricultural commodities including banana pulp, whole lemons, orange pulp, mushrooms, and rice at extraction temperatures below 100 degrees C and an extraction pressure of 50 atm. The extraction parameters that were studied include temperature, equilibration time, flow rate, pH, and collection ...
Fusarium; bananas; chlamydospores; conidia; mycelium; new species; soil; sporodochia; Central America; South Africa
Abstract:
... An emended description of Fusarium camptoceras is provided to include the presence of pedicellate macroconidia produced in sporodochia and mesoconidia produced on polyblastic conidiogenous cells in the aerial mycelium. Two new Fusarium species morphologically related to F. camptoceras in Section Arthrosporiella are described and illustrated. Fusarium nelsonii sp. nov. was isolated mainly from plan ...
... The effects that different headspace sampling methods have on the analysis of the ratios of compounds present in the headspace of a synthetic mixture and a biological sample were evaluated using the following methods: solid-phase microextraction (SPME), a syringe, and the porous polymers Porapak Q, Tenax TA, and Hayesep Q (thermal and solvent desorption). The performance of each method was only ev ...
... Changes in individual sugar content (fructose, glucose and sucrose) during freezing and frozen storage have been evaluated by HPLC on papaya (Carica papaya grupo Solo var Sunrise), fruits proceedings from female and hermaphrodite flowers, and banana (Musa cavendishii var enana). Effects of thermal treatments, such as blanching and microwaving, prior to freezing banana fruit were examined. Both an ...
Musa balbisiana; agrochemicals; bananas; carbofuran; ethoprophos; fenamiphos; furrow irrigation; geographic information systems; groundwater; groundwater contamination; half life; land cover; leaching; microirrigation; oxamyl; remediation; silviculture; soil depth; soil pH; Canary Islands
Abstract:
... Nonpoint source (NPS) groundwater contamination, that is related to the regional-scale use of agrochemicals, is a major environmental problem. This paper reports preliminary assessments of groundwater vulnerability due to pesticide leaching for areas of banana (Musa balbisiana) silviculture for the Canary Island of Tenerife using simple indices. Estimates of contamination potential were made for t ...
agitation; apples; bananas; equations; fruits; kiwifruit; mass transfer; models; regression analysis; solutes; temperature
Abstract:
... An empirical model was developed to predict the water loss and solid gain during osmotic dehydration of apple, banana and kiwi fruit. The model is based on a first‐order kinetic equation, in which the rate constant is a function of the main process variables (speed of agitation, solute concentration, size of fruit and process temperature). This model was applied to a wide range of experimental dat ...
... We describe a rapid and efficient method for isolation of total RNA from banana fruit tissues. The RNA was extracted with a high ionic strength buffer at room temperature. The proteins, genomic DNA and secondary metabolites in the extract were then removed by precipitation with pre-cooled potassium acetate and repeated phenol/chloroform/isoamyl alcohol extractions. The RNA was recovered by ethanol ...
enzyme activation; catechol oxidase; fruit pulp; kinetics; enzyme activity; bananas
Abstract:
... The monophenolase activity of latent banana polyphenol oxidase (PPO) partially purified by using a combination of two aqueous two-phase systems based on Triton X-114 and PEG 8000 (Sojo et al. J. Agric. Food Chem. 1998, 46, 4924-4930) has been characterized in the presence of sodium dodecyl sulfate (SDS). The purification method used avoids the loss of monophenolase activity described for other ban ...
Musa acuminata; bananas; climacteric fruits; deformation; hydrodynamics; markets; porosity; ripening
Abstract:
... Vacuum impregnation of banana was analysed by a hydrodynamic mechanism to determine effec tive porosity (∈ₑ). In the initial experiments, the influence of the ripening degree and cut was deter mined without taking into account sample deformations caused by the pressure gradients; in these cases ∈ₑ decreased as maturity progressed. Important structural changes were observed 2-4 days after the banan ...
... Female fecundity, oviposition preference and specificity on one normal and two novel food media were assayed on four laboratory populations ofDrosophila melanogaster, revealing considerable among- and within-population variation in oviposition preference. Overall, there was a significant tendency of females to prefer novel media to their normal banana food as an oviposition substrate. Specificity ...
polyphenols; catechol oxidase; fruit pulp; tannins; bananas
Abstract:
... Banana pulp polyphenol oxidase was partially purified in a latent form using sequential aqueous two-phase systems based on Triton X-114 and PEG 8000/phosphate. The purification achieved from a crude extract of banana pulp was 5-fold, with 50% recovery of the activity. The (poly)phenols, including tannins, were also reduced to 6% of the original, avoiding the postpurification tanning of the enzyme ...
Colletotrichum musae; Musa acuminata; bananas; biotechnology; conidia; fruits; phytoalexins
Abstract:
... Fourteen phenylphenalenone-type phytoalexins (1-14), including three new compounds, were isolated from the peel of unripe Musa acuminata [AAA] cv. Buñgulan fruit which had been injured and then inoculated with conidia of Colletotrichum musae. These new phytoalexins were identified as (+)-cis-2,3-dihydro-2,3-dihydroxy-4-(4′-hydroxyphenyl)phenalen-1-one (12), 9-(3′,4′-dimethoxyphenyl)-2-methoxyphena ...
weight; chemical composition; texture; volume; organic compounds; starch; Musa; maturity stage; titratable acidity; pH; color; spatial variation; chemical constituents of plants; bananas; fruiting; ascorbic acid
Abstract:
... Studies on the physico-chemical changes between different hand positions (top, middle and bottom) within a bunch and different finger positions (upper and lower) within a hand at different maturity stages (between 3 and 15 weeks from the flower emergence) were carried out on 'Montel' banana (Musa cavendishii L). The suitable harvesting stage was found to be between 12 and 15 weeks after flower eme ...
... The purpose of the present study was to determine the interaction effect of starch and fat of such products over blood parameters (cholesterol, triglycerides), and to evaluate starch and fat digestibility. Experiments were carried out in eight groups of Sprague-Dawley rats that were under the following diets: four of the groups were fed with a mix of 14% palm oil and 58% of each one of the starche ...
... The relationship between axil age and water-holding capacity on the presence and age of immatures of Aedes (Stegomyia) simpsoni (Theobald) complex (Diptera: Culicidae) in cultivated banana, Musa spp. (Musaceae), Colocasia esculenta and Xanthosoma sagittifolium (Araceae) during the rainy and dry seasons at different locations in Uganda is presented. On Musa spp., higher, younger axils were found to ...