cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.6084/m9.figshare.7451846
title: Prediction of moisture transfer parameters for convective drying of shrimp at different pretreatments

description: Abstract By the analytical model proposed by Dincer and Dost, the mass transfer parameters (moisture transfer coefficient and moisture diffusivity) of shrimp samples were determined. Three sets of drying experiments were performed with three samples of shrimp: without boiling (WB), boiled in salt solution (SB) and boiled in salt solution and subjected to liquid smoking process (SBS). The experiments were performed under controlled conditions of drying air at temperature of 60°C and velocity of 1.5 m/s. Experimental dimensionless moisture content data were used to calculate the drying coefficients and lag factors, which were then incorporated into the analytical model for slab and cylinder shapes. The results showed an adequate fit between the experimental data and the values predicted from the correlation. The boiling is the most recommended pretreatment, because provided a shorter drying time, with high values of moisture transfer coefficient and moisture diffusivity.
DOI: 10.6084/m9.figshare.7451840.v1
title: Prevalence of metallo-β-lactamase-encoding genes among carbapenem-resistant Pseudomonas aeruginosa strains isolated from burn patients in Iran

description: Abstract Carbapenem-resistant Pseudomonas aeruginosa (CRPA) has been considered a major cause of infection and mortality in burn patients, especially in developing countries such as Iran. One of the most common mechanisms of carbapenem resistance is production of metallo-β-lactamases [(MBLs), including Verona Integron-encoded Metallo-beta-lactamase (VIM), imipenemase (IMP), São Paulo metalo-beta-lactamase (SPM), German imipenemase (GIM), New Delhi metallo-beta-lactamase (NDM), Dutch imipenemase (DIM), Adelaide imipenemase (AIM), Seoul imipenemase (SIM), KHM, Serratia metallo-β-lactamase (SMB), Tripoli metallo-β-lactamase (TMB), and Florence imipenemase (FIM)]. Limited information is available on the prevalence of CRPA and MBLs in Iranian burn units. We performed a systematic search by using different electronic databases, including Medline (via PubMed), Embase, Web of Science, and Iranian Database. Of 586 articles published from January 2000 to December 2016, 14 studies reporting the incidence of CRPA and MBLs as detected by molecular methods in burn patients were included in this review. The meta-analyses showed that the prevalence of CRPA, IMP, and VIM was 76.8% (95% CI 67.5-84.1), 13.1% (95% CI 4.7-31.5), and 21.4% (95% CI 14.6-30.1), respectively, in Iranian burn centers and remaining MBLs types have not yet been detected. There was a high prevalence of MBLs and CRPA in Iranian burn centers. Therefore, these measurements should be applied nationally and rigorous infection control measures and antimicrobial stewardship will be the major pillars to control multidrug resistant microorganisms, such as CRPA.
DOI: 10.6084/m9.figshare.7451843.v1
title: Chemical composition, percent of dietary reference intake, and acceptability of gluten-free bread made from Prosopis nigra flour, added with hydrocolloids

description: Abstract The objective of the work was to know the nutritional contribution of gluten-free bread made with Prosopis nigra flour, and the acceptability measured by celiac and non celiac persons. Gluten-free bread was made from a mixture of corn, rice and Prosopis nigra flours. To achieve better technological characteristics, xanthan gum and whey concentrate were added. A portion of bread (50g) provided 19% of DRI for protein for children aged 4 to 8 years, while for a pregnant or lactating woman, this value reached 5%. Regarding the fibers, 50g of bread covered 16% and 14% of the DRI for these biological moments. The fat requirement was covered by 16% for all biological moments analyzed. The dietary contribution of this bread surpasses in proteins and fiber to the commercial ones. Bread made with Prosopis nigra flour presented a balanced caloric distribution, contributing a high proportion of proteins, fats, dietary fiber (mainly of the insoluble fraction), and low quantity of carbohydrates available, characteristics that make it a recommendable product for celiac persons in different biological moments.
DOI: 10.6084/m9.figshare.7451846.v1
title: Prediction of moisture transfer parameters for convective drying of shrimp at different pretreatments

description: Abstract By the analytical model proposed by Dincer and Dost, the mass transfer parameters (moisture transfer coefficient and moisture diffusivity) of shrimp samples were determined. Three sets of drying experiments were performed with three samples of shrimp: without boiling (WB), boiled in salt solution (SB) and boiled in salt solution and subjected to liquid smoking process (SBS). The experiments were performed under controlled conditions of drying air at temperature of 60°C and velocity of 1.5 m/s. Experimental dimensionless moisture content data were used to calculate the drying coefficients and lag factors, which were then incorporated into the analytical model for slab and cylinder shapes. The results showed an adequate fit between the experimental data and the values predicted from the correlation. The boiling is the most recommended pretreatment, because provided a shorter drying time, with high values of moisture transfer coefficient and moisture diffusivity.
DOI: 10.6084/m9.figshare.7451834
title: Education and training in Brazilian botanical gardens: are we achieving GSPC targets?

description: Abstract Engage, educate and raise public awareness of the importance of plant diversity is the means through which plant conservation can be achieved. The Global Strategy for Plant Conservation (GSPC) is a programme to halt the loss of plant diversity and recognize botanical gardens as a partners. This paper investigates the implementation of targets 14 and 15 GSPC in Brazilian botanic gardens specially in education and awareness about plant diversity and trained people. A survey was carried out on the institutional websites of 21 gardens registered in the National System of Botanical Gardens Registration to identify actions that follow the guidelines of these two targets. Websites outdated, difficult access and lack online resources for the public shows us that internet tools are poorly used to divulgation. The target 14's activities performed in most gardens are educational visits and environmental interpretation and explore collections in situ and ex situ from representative species of regional flora. Trained people is held in all gardens but some stand out as important research centers and graduate programs. Despite the efforts Brazilian botanical gardens need improve the public communication and develop strategies to measure the targets progress.
DOI: 10.6084/m9.figshare.7451834.v1
title: Education and training in Brazilian botanical gardens: are we achieving GSPC targets?

description: Abstract Engage, educate and raise public awareness of the importance of plant diversity is the means through which plant conservation can be achieved. The Global Strategy for Plant Conservation (GSPC) is a programme to halt the loss of plant diversity and recognize botanical gardens as a partners. This paper investigates the implementation of targets 14 and 15 GSPC in Brazilian botanic gardens specially in education and awareness about plant diversity and trained people. A survey was carried out on the institutional websites of 21 gardens registered in the National System of Botanical Gardens Registration to identify actions that follow the guidelines of these two targets. Websites outdated, difficult access and lack online resources for the public shows us that internet tools are poorly used to divulgation. The target 14's activities performed in most gardens are educational visits and environmental interpretation and explore collections in situ and ex situ from representative species of regional flora. Trained people is held in all gardens but some stand out as important research centers and graduate programs. Despite the efforts Brazilian botanical gardens need improve the public communication and develop strategies to measure the targets progress.
DOI: 10.6084/m9.figshare.7451825
title: Chemical modification of in natura collagen by acidic catalysis – structural characterization and mechanistic features of Cd(II) sorption by solution microcalorimetry

description: ABSTRACT Chemically-modified in natura collage was prepared under acidic catalysis for using in sorption of Cd(II) from aqueous solutions. Simultaneous determination of the quantity and energetic parameters of Cd(II) sorption on PGA-scale at pH 8.0 were determined using solution microcalorimetry (SM). The calorimetric enthalpies of Cd(II) sorption on PGA-scale are all exothermic, and Cd(II) adsorption energies decrease as temperature increases. The maximum sorption capacity of PGA-scale for Cd(II) (438 μmol g-1) is superior with many sorption data reported in the literature. Characterization and SM indicate that the main sites for Cd(II) sorption are located in the collagen structure of PGA-scale. It was found that the interactions PGA-scale/Cd(II) are mainly due to chemisorption and diffusion may occur at the PGA-scale/Cd(II) interface. The results of this study underline the good features of PGA-scale as a promising material for sorption of Cd(II) from aqueous media.
DOI: 10.6084/m9.figshare.7451828
title: Phytotoxic effects of Morus nigra aqueous extract on germination and seedling growth of Lactuca sativa

description: Abstract Some exotic species threat the integrity of natural environments due to their invasive potential. They can affect other species by releasing secondary compounds in the soil. Morus nigra (Moraceae) is an invasive species of riparian forests in southern Brazil. The objective of this study was to verify if the aqueous extracts of fruit, fresh and dry leaves of M. nigra show phytotoxic effects on germination, seedling growth and membrane integrity of seedlings of Lactuca sativa. Extract concentrations of 0.1, 0.25, 0.5, 0.75, 1, 2.5, 5, 7.5 and 10% were tested. Germination rate and speed of germination were determined. Effects on initial growth were evaluated by measuring seedling root and shoot length, and membrane integrity was assessed by conductivity tests. Results showed the phytotoxicity of M. nigra aqueous extracts, causing significant inhibition on germination and seedling growth. The fruit extract was generally less phytotoxic than extracts from fresh and dry leaves. Moreover, the extracts induced changes in membrane integrity and caused morphological deformities in seedlings, such as necrotic roots and chlorotic plants. The high phytotoxicity of fruit, dry and fresh leaf extracts of M. nigra was evidenced, indicating the allelopathic potential of the species.
DOI: 10.6084/m9.figshare.7451825.v1
title: Chemical modification of in natura collagen by acidic catalysis – structural characterization and mechanistic features of Cd(II) sorption by solution microcalorimetry

description: ABSTRACT Chemically-modified in natura collage was prepared under acidic catalysis for using in sorption of Cd(II) from aqueous solutions. Simultaneous determination of the quantity and energetic parameters of Cd(II) sorption on PGA-scale at pH 8.0 were determined using solution microcalorimetry (SM). The calorimetric enthalpies of Cd(II) sorption on PGA-scale are all exothermic, and Cd(II) adsorption energies decrease as temperature increases. The maximum sorption capacity of PGA-scale for Cd(II) (438 μmol g-1) is superior with many sorption data reported in the literature. Characterization and SM indicate that the main sites for Cd(II) sorption are located in the collagen structure of PGA-scale. It was found that the interactions PGA-scale/Cd(II) are mainly due to chemisorption and diffusion may occur at the PGA-scale/Cd(II) interface. The results of this study underline the good features of PGA-scale as a promising material for sorption of Cd(II) from aqueous media.
DOI: 10.6084/m9.figshare.7451828.v1
title: Phytotoxic effects of Morus nigra aqueous extract on germination and seedling growth of Lactuca sativa

description: Abstract Some exotic species threat the integrity of natural environments due to their invasive potential. They can affect other species by releasing secondary compounds in the soil. Morus nigra (Moraceae) is an invasive species of riparian forests in southern Brazil. The objective of this study was to verify if the aqueous extracts of fruit, fresh and dry leaves of M. nigra show phytotoxic effects on germination, seedling growth and membrane integrity of seedlings of Lactuca sativa. Extract concentrations of 0.1, 0.25, 0.5, 0.75, 1, 2.5, 5, 7.5 and 10% were tested. Germination rate and speed of germination were determined. Effects on initial growth were evaluated by measuring seedling root and shoot length, and membrane integrity was assessed by conductivity tests. Results showed the phytotoxicity of M. nigra aqueous extracts, causing significant inhibition on germination and seedling growth. The fruit extract was generally less phytotoxic than extracts from fresh and dry leaves. Moreover, the extracts induced changes in membrane integrity and caused morphological deformities in seedlings, such as necrotic roots and chlorotic plants. The high phytotoxicity of fruit, dry and fresh leaf extracts of M. nigra was evidenced, indicating the allelopathic potential of the species.
DOI: 10.6084/m9.figshare.7451816
title: Effect of different artificial aging protocolson fluorescence of resin composites

description: ABSTRACT This study evaluated the effect of different artificial aging on fluorescence of resin composites. Forty-five cylindrical specimens (6mm in diameter and 1mm thick) were made of each resin composite: IPS Empress Direct, Filtek™ Z350 XT, and Durafill. A baseline measurement of fluorescence by the direct method using the fluorescence spectrophotometer RF-5301 PC was performed. After, resin specimens were divided into 3 groups according to artificial aging protocol to be submitted: (1) aging by mechanical brushing: 30,000 cycles were performed, with fluorescence measurements after 10,000, 20,000 and 30,000 cycles; (2) chemical aging by ethanol: the samples were immersed in ethanol for 15 days, with measurements after 5, 10 and 15 days of immersion; (3) light aging: resin specimens were subjected to UV radiation for 216h with fluorescence readings after 72, 144, 216h. Data were submitted to one-way repeated measures ANOVA and Tukey’s test (α=0.05). Baseline fluorescence of the tested resins was ranked in this ascending order: Durafill &lt; Filtek Z350 XT &lt; IPS Empress Direct. Simulated toothbrushing and ethanol immersion reduced fluorescence, except for Z350 XT. For light exposition, fluorescence was reduced after 100h for Empress Direct and Durafill, while a reduction after 100h and 200h was detected for Z350 XT. Artificial aging protocols influenced the fluorescence and that this phenomenon is material dependent. In general, the fluorescence is reduced with aging.
DOI: 10.6084/m9.figshare.7451810
title: Delignification of banana pseudostem by the enzymatic culture broth of Pleurotus sajor-caju

description: ABSTRACT The lignocellulosic materials from plant biomass are composed of cellulose, hemicellulose and lignin and must be decomposed for use in the industry, since they have compact fibrillar formation of difficult degradation. The decomposition can be carried out using acids, bases, or lignocellulolytic enzymes. In this work, delignification of the banana pseudostem was accessed using acid and enzymatic treatment with enzymes produced by the fungus Pleurotus sajor-caju. The culture was carried out in Erlenmeyer flasks containing Manachini solution with 10 g L-1 of pseudostem bran as substrate. The flasks were inoculated with P. sajor-caju and after 14 days of incubation the suspension was vacuum filtered to obtain the enzyme culture broth. In the first treatment (PAE -pseudostem with acid and enzymatic treatment), thermogravimetric results indicated a mass loss of 59% relative to cellulose and hemicellulose and the release of 8.23 g L-1 of reducing sugars. In the second treatment (PAEI -pseudostem with acid treatment and inactivated enzyme), the thermogravimetric results indicated loss of mass of 54.5% of cellulose and hemicellulose and the release of 5.18 g L-1 of reducing sugars. In the third treatment (PE pseudostem without acid treatment and with enzymatic treatment), the action of the enzymatic broth of P. sajor-caju promoted loss of mass of 56.6% of cellulose and hemicellulose and 6.12 g L-1 reducing sugars. Compared with the FP sample (pseudostem bran without acid or enzymatic treatment), there was a 25.85% and 43.4% reduction in the lignin content in PAE and PE samples, respectively. The results point to the potential of the enzymatic broth of P. sajor-caju in the delignification of the banana pseudostem.
DOI: 10.7284/101873
title: ADCP (Acoustic Doppler Current Profiler) data collected during research cruise MV1014 using a Hawaii UHDAS instrument system onboard the platform RV Melville

description: Original (unprocessed) data collected during a Field_expedition
DOI: 10.6084/m9.figshare.7451810.v1
title: Delignification of banana pseudostem by the enzymatic culture broth of Pleurotus sajor-caju

description: ABSTRACT The lignocellulosic materials from plant biomass are composed of cellulose, hemicellulose and lignin and must be decomposed for use in the industry, since they have compact fibrillar formation of difficult degradation. The decomposition can be carried out using acids, bases, or lignocellulolytic enzymes. In this work, delignification of the banana pseudostem was accessed using acid and enzymatic treatment with enzymes produced by the fungus Pleurotus sajor-caju. The culture was carried out in Erlenmeyer flasks containing Manachini solution with 10 g L-1 of pseudostem bran as substrate. The flasks were inoculated with P. sajor-caju and after 14 days of incubation the suspension was vacuum filtered to obtain the enzyme culture broth. In the first treatment (PAE -pseudostem with acid and enzymatic treatment), thermogravimetric results indicated a mass loss of 59% relative to cellulose and hemicellulose and the release of 8.23 g L-1 of reducing sugars. In the second treatment (PAEI -pseudostem with acid treatment and inactivated enzyme), the thermogravimetric results indicated loss of mass of 54.5% of cellulose and hemicellulose and the release of 5.18 g L-1 of reducing sugars. In the third treatment (PE pseudostem without acid treatment and with enzymatic treatment), the action of the enzymatic broth of P. sajor-caju promoted loss of mass of 56.6% of cellulose and hemicellulose and 6.12 g L-1 reducing sugars. Compared with the FP sample (pseudostem bran without acid or enzymatic treatment), there was a 25.85% and 43.4% reduction in the lignin content in PAE and PE samples, respectively. The results point to the potential of the enzymatic broth of P. sajor-caju in the delignification of the banana pseudostem.
DOI: 10.6084/m9.figshare.7451816.v1
title: Effect of different artificial aging protocolson fluorescence of resin composites

description: ABSTRACT This study evaluated the effect of different artificial aging on fluorescence of resin composites. Forty-five cylindrical specimens (6mm in diameter and 1mm thick) were made of each resin composite: IPS Empress Direct, Filtek™ Z350 XT, and Durafill. A baseline measurement of fluorescence by the direct method using the fluorescence spectrophotometer RF-5301 PC was performed. After, resin specimens were divided into 3 groups according to artificial aging protocol to be submitted: (1) aging by mechanical brushing: 30,000 cycles were performed, with fluorescence measurements after 10,000, 20,000 and 30,000 cycles; (2) chemical aging by ethanol: the samples were immersed in ethanol for 15 days, with measurements after 5, 10 and 15 days of immersion; (3) light aging: resin specimens were subjected to UV radiation for 216h with fluorescence readings after 72, 144, 216h. Data were submitted to one-way repeated measures ANOVA and Tukey’s test (α=0.05). Baseline fluorescence of the tested resins was ranked in this ascending order: Durafill &lt; Filtek Z350 XT &lt; IPS Empress Direct. Simulated toothbrushing and ethanol immersion reduced fluorescence, except for Z350 XT. For light exposition, fluorescence was reduced after 100h for Empress Direct and Durafill, while a reduction after 100h and 200h was detected for Z350 XT. Artificial aging protocols influenced the fluorescence and that this phenomenon is material dependent. In general, the fluorescence is reduced with aging.
DOI: 10.6084/m9.figshare.7451804
title: Obtaining dried extracts from the biomass of the microalga Haematococcus pluvialis by spray drying

description: ABSTRACT Carotenoids comprise a class of more than 600 natural pigments whose biological potential is related to their antioxidant activity, regulation of cell growth, modulation of the immune response and anti-inflammatory activity. Haematococcus pluvialis is a green microalga known to synthesize and accumulate large amounts of carotenoids, among them astaxanthin. The objective of this work was to prepare and characterize dry extracts of H. pluvialis by spray drying technique, evaluating the effect of the use of pharmaceutical adjuvants and the drying parameters on the final characteristics of dry extracts. In addition, the antioxidant and cytotoxic activities of the carotenoids obtained from the dried extracts were evaluated. When the extraction of the carotenoids from the microalgae biomass was evaluated, high yield values ranging from 87.8% to 94.6% were obtained. After extraction and spray drying no differences in particle morphology were observed and bulk density and compacted values did not appear to be affected when different spray drying conditions were tested. It was observed that increasing the temperature and concentration of the drying aid provided a reduction in the total carotenoid content. The antioxidant activity values of carotenoid extracts varied between 55.78 and 77.83%, with the lowest values observed for the dry extracts prepared with the highest inlet temperature. The evaluation of the antiproliferative activity of carotenoid extracts showed that the highest concentrations tested reduced the viability of B16F10 murine melanoma cells from 66.58 and 82.91%. Thus, the results set showed that the extraction of dry extracts from the biomass of Haematococcus pluvialis for the production of pharmaceutical raw materials using spray drying is especially promising, with high total carotenoid values, and without significant loss of antioxidant activity.