Use of ultrasound to modify the pyrolyzed biomass of Pinus spp. and the implications for biological models

Pine (Pinus ssp.) needle biomass (PNB) was pyrolyzed at 400 °C for 3 h and then subjected to hydrothermal treatment at the same temperature for 10 min, with and without the addition of potassium chloride (KCl). The suspensions of the materials treated hydrothermally were submitted to ultrasound for...

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Main Authors:	Aislan R. Guimarães, Marcelo E. Cordeiro, Jaqueline Nicolini, Keller P. Nicolini
Format:	Article
Language:	English
Published:	KeAi Communications Co., Ltd. 2018-06-01
Series:	Information Processing in Agriculture
Online Access:	http://www.sciencedirect.com/science/article/pii/S2214317317302032

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spelling	doaj-3457ac1dc79a4777a703ae8d84d1ad7c2021-04-02T10:51:45ZengKeAi Communications Co., Ltd.Information Processing in Agriculture2214-31732018-06-0152199204Use of ultrasound to modify the pyrolyzed biomass of Pinus spp. and the implications for biological modelsAislan R. Guimarães0Marcelo E. Cordeiro1Jaqueline Nicolini2Keller P. Nicolini3Chemistry Department, Federal Institute of Parana, Campus Palmas, PR CEP 85555-000, BrazilChemistry Department, Federal Institute of Parana, Campus Palmas, PR CEP 85555-000, BrazilChemistry Department, Federal Institute of Parana, Campus Palmas, PR CEP 85555-000, BrazilCorresponding author.; Chemistry Department, Federal Institute of Parana, Campus Palmas, PR CEP 85555-000, BrazilPine (Pinus ssp.) needle biomass (PNB) was pyrolyzed at 400 °C for 3 h and then subjected to hydrothermal treatment at the same temperature for 10 min, with and without the addition of potassium chloride (KCl). The suspensions of the materials treated hydrothermally were submitted to ultrasound for 5, 10, 20, 30 and 60 min. Diffuse reflectance UV–Vis (DRUV) spectroscopy results for the materials with variations in sonication times were obtained and the band gap energy (E) was calculated. A culture medium containing Saccharomyces cerevisiae was monitored during 30 min of exposure to different materials for the calculation of the 10% (IC10), 30% (IC30) and 50% (IC50) inhibitory concentrations. Of the samples that underwent ultrasonic treatment, the material pyrolyzed at 400 °C without the addition of potassium ions (PNB4003H60) presented the greatest inhibition of 10% of the Saccharomyces cerevisiae cultures. Of the materials without the addition of potassium, the material pyrolyzed and sonicated for 10 min (PNB4003H10) showed the best characteristics for use as a support for Saccharomyces cerevisiae organisms. Keywords: Potassium, Saccharomyces cerevisiae, Spectroscopyhttp://www.sciencedirect.com/science/article/pii/S2214317317302032
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Aislan R. Guimarães Marcelo E. Cordeiro Jaqueline Nicolini Keller P. Nicolini
spellingShingle	Aislan R. Guimarães Marcelo E. Cordeiro Jaqueline Nicolini Keller P. Nicolini Use of ultrasound to modify the pyrolyzed biomass of Pinus spp. and the implications for biological models Information Processing in Agriculture
author_facet	Aislan R. Guimarães Marcelo E. Cordeiro Jaqueline Nicolini Keller P. Nicolini
author_sort	Aislan R. Guimarães
title	Use of ultrasound to modify the pyrolyzed biomass of Pinus spp. and the implications for biological models
title_short	Use of ultrasound to modify the pyrolyzed biomass of Pinus spp. and the implications for biological models
title_full	Use of ultrasound to modify the pyrolyzed biomass of Pinus spp. and the implications for biological models
title_fullStr	Use of ultrasound to modify the pyrolyzed biomass of Pinus spp. and the implications for biological models
title_full_unstemmed	Use of ultrasound to modify the pyrolyzed biomass of Pinus spp. and the implications for biological models
title_sort	use of ultrasound to modify the pyrolyzed biomass of pinus spp. and the implications for biological models
publisher	KeAi Communications Co., Ltd.
series	Information Processing in Agriculture
issn	2214-3173
publishDate	2018-06-01
description	Pine (Pinus ssp.) needle biomass (PNB) was pyrolyzed at 400 °C for 3 h and then subjected to hydrothermal treatment at the same temperature for 10 min, with and without the addition of potassium chloride (KCl). The suspensions of the materials treated hydrothermally were submitted to ultrasound for 5, 10, 20, 30 and 60 min. Diffuse reflectance UV–Vis (DRUV) spectroscopy results for the materials with variations in sonication times were obtained and the band gap energy (E) was calculated. A culture medium containing Saccharomyces cerevisiae was monitored during 30 min of exposure to different materials for the calculation of the 10% (IC10), 30% (IC30) and 50% (IC50) inhibitory concentrations. Of the samples that underwent ultrasonic treatment, the material pyrolyzed at 400 °C without the addition of potassium ions (PNB4003H60) presented the greatest inhibition of 10% of the Saccharomyces cerevisiae cultures. Of the materials without the addition of potassium, the material pyrolyzed and sonicated for 10 min (PNB4003H10) showed the best characteristics for use as a support for Saccharomyces cerevisiae organisms. Keywords: Potassium, Saccharomyces cerevisiae, Spectroscopy
url	http://www.sciencedirect.com/science/article/pii/S2214317317302032
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Use of ultrasound to modify the pyrolyzed biomass of Pinus spp. and the implications for biological models

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