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Registro Completo |
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Biblioteca(s): |
Embrapa Solos. |
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Data corrente: |
31/08/2018 |
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Data da última atualização: |
10/11/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
BELTRAME, K. K.; SOUZA, A. M. de; COELHO, M. R.; WINKLER, T. C. B.; SOUZA, W. E.; VALDERRAMA, P. |
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Afiliação: |
KARLA K. BELTRAME, UTFPR; ANDRE MARCELO DE SOUZA, CNPS; MAURICIO RIZZATO COELHO, CNPS; THAYANE C. B. WINKLER; WYRLLEN E. SOUZA, UTFPR; PATRÍCIA VALDERRAMA, UTFPR. |
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Título: |
Soil organic carbon determination using NIRS: evaluation of dichromate oxidation and dry combustion analysis as reference methods in multivariate calibration. |
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Ano de publicação: |
2016 |
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Fonte/Imprenta: |
Journal of the Brazilian Chemical Society, v. 27, n. 9, p. 1527-1532, 2016. |
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DOI: |
http://dx.doi.org/10.5935/0103-5053.20160031 |
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Idioma: |
Inglês |
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Conteúdo: |
Dichromate oxidation and dry combustion analysis were evaluated as reference methods to determine organic carbon in Brazilian soils using near infrared spectroscopy (NIRS) as an alternative. The main objective of this study was to evaluate which of the reference methods could provide a calibration model with higher predictive ability. A total of 161 soil samples obtained from horizons in full profiles (Parque Estadual da Mata Seca, Minas Gerais State, Brazil) were used. Models were mean centered and built from partial least squares. The dichromate oxidation method presented a lower accuracy when compared to dry combustion analysis as reference for NIRS. Figures of merit such as sensitivity, analytical sensitivity, detection and quantification limits, adjust and linearity presented results very similar. A paired t-test was applied to the figures of merit results and with 95% confidence did not show significant differences between the two methods used as reference for NIRS. The non-parametric Mann Whitney test showed that the samples provided with the partial least squares (PLS) model when the reference method was the dichromate oxidation or dry combustion analysis come from the same population, indicating that the reference methods employed for multivariate calibration from NIRS provide the same results practically. |
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Thesagro: |
Análise do Solo; Carbono. |
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Thesaurus Nal: |
Soil analysis; Soil organic carbon. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/182275/1/2016-175.pdf
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Marc: |
LEADER 02163naa a2200241 a 4500
001 2094899
005 2021-11-10
008 2016 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.5935/0103-5053.20160031$2DOI
100 1 $aBELTRAME, K. K.
245 $aSoil organic carbon determination using NIRS$bevaluation of dichromate oxidation and dry combustion analysis as reference methods in multivariate calibration.$h[electronic resource]
260 $c2016
520 $aDichromate oxidation and dry combustion analysis were evaluated as reference methods to determine organic carbon in Brazilian soils using near infrared spectroscopy (NIRS) as an alternative. The main objective of this study was to evaluate which of the reference methods could provide a calibration model with higher predictive ability. A total of 161 soil samples obtained from horizons in full profiles (Parque Estadual da Mata Seca, Minas Gerais State, Brazil) were used. Models were mean centered and built from partial least squares. The dichromate oxidation method presented a lower accuracy when compared to dry combustion analysis as reference for NIRS. Figures of merit such as sensitivity, analytical sensitivity, detection and quantification limits, adjust and linearity presented results very similar. A paired t-test was applied to the figures of merit results and with 95% confidence did not show significant differences between the two methods used as reference for NIRS. The non-parametric Mann Whitney test showed that the samples provided with the partial least squares (PLS) model when the reference method was the dichromate oxidation or dry combustion analysis come from the same population, indicating that the reference methods employed for multivariate calibration from NIRS provide the same results practically.
650 $aSoil analysis
650 $aSoil organic carbon
650 $aAnálise do Solo
650 $aCarbono
700 1 $aSOUZA, A. M. de
700 1 $aCOELHO, M. R.
700 1 $aWINKLER, T. C. B.
700 1 $aSOUZA, W. E.
700 1 $aVALDERRAMA, P.
773 $tJournal of the Brazilian Chemical Society$gv. 27, n. 9, p. 1527-1532, 2016.
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Registro original: |
Embrapa Solos (CNPS) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Agroindústria de Alimentos. Para informações adicionais entre em contato com ctaa.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Agroindústria de Alimentos. |
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Data corrente: |
02/12/2016 |
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Data da última atualização: |
25/09/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
TONUCCI, L. B.; SANTOS, K. M. O. dos; OLIVEIRA, L. L. de; RIBEIRO, S. M. R.; MARTINO, H. S. D. |
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Afiliação: |
Livia Bordalo Tonucci, INTA; KARINA MARIA OLBRICH DOS SANTOS, CTAA; Leandro Licursi de Oliveira, UFV; Sonia Machado Rocha Ribeiro, UFV; Hercia Stampini Duarte Martino, UFV. |
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Título: |
Clinical application of probiotics in type 2 diabetes mellitus: a randomized, double-blind, placebo-controlled study. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
Clinical Nutrition, v. 36, n. 1, p. 85-92, 2017. |
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DOI: |
10.1016/j.clnu.2015.11.011. |
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Idioma: |
Inglês |
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Conteúdo: |
Background & aims: Type 2 diabetes has been associated with dysbiosis and one of the possible routes to restore a healthy gut microbiota is by the regular ingestion of probiotics. We aimed to investigate the effects of probiotics on glycemic control, lipid profile, inflammation, oxidative stress and short chain fatty acids in T2D. Methods: In a double-blind, randomized, placebo-controlled trial, 50 volunteers consumed daily 120 g/d of fermented milk for 6 wk. Participants were assigned into two groups: probiotic group, consuming fermented milk containing Lactobacillus acidophilus La-5 and Bifidobacterium animalis subsp lactis BB-12 (109 colony-forming units/d, each) and control group, consuming conventional fermented milk. Anthropometric measurements, body composition, fasting blood and faecal samples were taken at baseline and after 6 wk. Results: 45 subjects out of 50 (90%) completed follow-up. After 6 wk, there was a significant decrease in fructosamine levels (9.91 mmol/L; p ¼ 0.04) and hemoglobin A1c tended to be lower (0.67%; p ¼ 0.06) in probiotic group. TNF-a and resistin were significantly reduced in probiotic and control groups (1.5 and 1.3 pg/mL, .1 and 2.8 ng/mL, respectively), while IL-10 was significantly reduced ( 0.65 pg/mL; p < 0.001) only in the control group. Fecal acetic acid was increased in both groups (0.58 and 0.59% in probiotic and control groups, respectively; p < 0.01). There was a significant difference between groups concerning mean changes of HbA1c (þ0.31 for control group vs 0.65 for probiotic group; p ¼ 0.02), total cholesterol (þ0.55 for control group vs 0.15 for probiotic group; p ¼ 0.04) and LDL-cholesterol (þ0.36 for control group vs 0.20 for probiotic group p ¼ 0.03). Conclusions: Probiotic consumption improved the glycemic control in T2D subjects, however, the intake of fermented milk seems to be involved with others metabolic changes, such as decrease in inflammatory cytokines (TNF-a and resistin) and increase in the acetic acid. MenosBackground & aims: Type 2 diabetes has been associated with dysbiosis and one of the possible routes to restore a healthy gut microbiota is by the regular ingestion of probiotics. We aimed to investigate the effects of probiotics on glycemic control, lipid profile, inflammation, oxidative stress and short chain fatty acids in T2D. Methods: In a double-blind, randomized, placebo-controlled trial, 50 volunteers consumed daily 120 g/d of fermented milk for 6 wk. Participants were assigned into two groups: probiotic group, consuming fermented milk containing Lactobacillus acidophilus La-5 and Bifidobacterium animalis subsp lactis BB-12 (109 colony-forming units/d, each) and control group, consuming conventional fermented milk. Anthropometric measurements, body composition, fasting blood and faecal samples were taken at baseline and after 6 wk. Results: 45 subjects out of 50 (90%) completed follow-up. After 6 wk, there was a significant decrease in fructosamine levels (9.91 mmol/L; p ¼ 0.04) and hemoglobin A1c tended to be lower (0.67%; p ¼ 0.06) in probiotic group. TNF-a and resistin were significantly reduced in probiotic and control groups (1.5 and 1.3 pg/mL, .1 and 2.8 ng/mL, respectively), while IL-10 was significantly reduced ( 0.65 pg/mL; p < 0.001) only in the control group. Fecal acetic acid was increased in both groups (0.58 and 0.59% in probiotic and control groups, respectively; p < 0.01). There was a significant difference between groups concerning mean changes of Hb... Mostrar Tudo |
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Palavras-Chave: |
Gut microbiota; Oxidative; Type 2 diabetes. |
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Thesagro: |
Stress. |
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Thesaurus NAL: |
inflammation; probiotics. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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Marc: |
LEADER 02784naa a2200253 a 4500
001 2057801
005 2017-09-25
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1016/j.clnu.2015.11.011.$2DOI
100 1 $aTONUCCI, L. B.
245 $aClinical application of probiotics in type 2 diabetes mellitus$ba randomized, double-blind, placebo-controlled study.$h[electronic resource]
260 $c2017
520 $aBackground & aims: Type 2 diabetes has been associated with dysbiosis and one of the possible routes to restore a healthy gut microbiota is by the regular ingestion of probiotics. We aimed to investigate the effects of probiotics on glycemic control, lipid profile, inflammation, oxidative stress and short chain fatty acids in T2D. Methods: In a double-blind, randomized, placebo-controlled trial, 50 volunteers consumed daily 120 g/d of fermented milk for 6 wk. Participants were assigned into two groups: probiotic group, consuming fermented milk containing Lactobacillus acidophilus La-5 and Bifidobacterium animalis subsp lactis BB-12 (109 colony-forming units/d, each) and control group, consuming conventional fermented milk. Anthropometric measurements, body composition, fasting blood and faecal samples were taken at baseline and after 6 wk. Results: 45 subjects out of 50 (90%) completed follow-up. After 6 wk, there was a significant decrease in fructosamine levels (9.91 mmol/L; p ¼ 0.04) and hemoglobin A1c tended to be lower (0.67%; p ¼ 0.06) in probiotic group. TNF-a and resistin were significantly reduced in probiotic and control groups (1.5 and 1.3 pg/mL, .1 and 2.8 ng/mL, respectively), while IL-10 was significantly reduced ( 0.65 pg/mL; p < 0.001) only in the control group. Fecal acetic acid was increased in both groups (0.58 and 0.59% in probiotic and control groups, respectively; p < 0.01). There was a significant difference between groups concerning mean changes of HbA1c (þ0.31 for control group vs 0.65 for probiotic group; p ¼ 0.02), total cholesterol (þ0.55 for control group vs 0.15 for probiotic group; p ¼ 0.04) and LDL-cholesterol (þ0.36 for control group vs 0.20 for probiotic group p ¼ 0.03). Conclusions: Probiotic consumption improved the glycemic control in T2D subjects, however, the intake of fermented milk seems to be involved with others metabolic changes, such as decrease in inflammatory cytokines (TNF-a and resistin) and increase in the acetic acid.
650 $ainflammation
650 $aprobiotics
650 $aStress
653 $aGut microbiota
653 $aOxidative
653 $aType 2 diabetes
700 1 $aSANTOS, K. M. O. dos
700 1 $aOLIVEIRA, L. L. de
700 1 $aRIBEIRO, S. M. R.
700 1 $aMARTINO, H. S. D.
773 $tClinical Nutrition$gv. 36, n. 1, p. 85-92, 2017.
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