Abstract：
:Litchi polysaccharide (LP) was extracted from litchi pulp. Its chemical composition, microstructure, zeta potential, flow and viscoelastic behavior were investigated. LP contained uronic acid (41.18%), neutral sugar (42.23%), and protein (2.72%). The monosaccharide composition was mostly arabinose, galactose, and a small amount of mannose, rhamnose and glucose. Scanning electron microscopy (SEM) showed LP was porous network structure. LP concentration had no effect on its zeta potential value while salts reduced them. LP showed shear-thinning behavior during the tested shear rate range. The power-law model was used to evaluate the flow behavior of LP; both its flow behavior index and consistency index changed with different concentrations. The viscosity of LP increased under acidic conditions (pH2-4), but was stable with heat treatment. The LP dispersion displayed as a liquid viscoelastic behavior in 1% and 2% concentrations and behaved as an elastic gel at 3% concentration as well as the addition of NaCl and CaCl2.
journal_name
Int J Biol Macromoljournal_title
International journal of biological macromoleculesauthors
Huang F,Liu Y,Zhang R,Dong L,Yi Y,Deng Y,Wei Z,Wang G,Zhang Mdoi
10.1016/j.ijbiomac.2018.02.054subject
Has Abstractpub_date
2018-06-01 00:00:00pages
968-975eissn
0141-8130issn
1879-0003pii
S0141-8130(17)32376-0journal_volume
112pub_type
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