%0 Journal Article
%T Physicochemical Properties of Edible Seed Hemicelluloses
%A Felipe Domingos de Sousa
%A Marjory Lima Holanda-Ara¨²jo
%A Jos¨¦ Roberto Rodrigues de Souza
%A Rafael de Souza Miranda
%A Rafael Raimundo Almeida
%A Eneas Gomes-Filho
%A N¨¢gila Maria Pontes-Ricardo
%A Ana Cristina Oliveira Monteiro-Moreira
%A Renato de Azevedo Moreira
%J Open Access Library Journal
%V 4
%N 6
%P 1-14
%@ 2333-9721
%D 2017
%I Open Access Library
%R 10.4236/oalib.1103683
%X <div style="text-align:justify;">
	<span style="line-height:1.5;">In this work, galactomannans and xyloglucans were isolated from the seed
endosperm and cotyledon of Brazilian non-conventional sources, respectively.
Extraction yields, monosaccharide ratios, macromolecular parameters and molar
mass distributions were determined and compared to commercial guar gum and
Locust Bean Gum (LBG). The extraction yield in relation to seed mass ranged
from 7.0% to 40.63%, with xyloglucan yields being higher than galactomannan yields. </span><i style="line-height:1.5;">Schizolobium parahyba</i><span style="line-height:1.5;"> and </span><i style="line-height:1.5;">Caesalpinia pulcherrima</i><span style="line-height:1.5;"> galactomannans
exhibited the lowest protein contents, 0.05% and 0.08%, respectively. Flow
curves of 1% hemicellulose solutions (w:v) were measured by varying the shear
rate from 0.1 to 100 s</span><sup>©�1</sup><span style="line-height:1.5;">. The resulting data were fitted to a Power
Law model, and all the hemicelluloses presented shear-thinning behavior.
Galactomannans and xyloglucans with different monosaccharide ratios showed
similar consistency indices. Rheological properties were also compared, and the
results suggest new he</span><span style="line-height:1.5;">micellulose sources, which can be studied for additional
applications in areas such as materials science, medicine and biology.</span> 
</div>
%K Galactomannan
%K Xyloglucan
%K Intrinsic Viscosity
%K Rheology
%U http://www.oalib.com/paper/5286670