title: Efficient and simple method for determination of suspendibility of bio-inoculant suspensions.
abstract: This study assessed the utilization of viscosity and zeta potential as a novel method to evaluate suspendibility of formulation of Sinorhizobium meliloti grown in starch industry wastewater for use as bio-inoculants. For this objective, sorbitol was used as a suspending agent at concentrations of 0 to 10% w/v. Model, based on multiple linear regression (with pH as dependant variable, and zeta potential, average particle size and sorbitol concentration as independent variables) demonstrated an important relation which was significant (p<0.001, R2=0.98). Sigmoid regression revealed a significant relation between zeta potential and suspendibility with p value=0.007 and R-squared=0.86, and between viscosity and suspendibility (p value<0.0001 and R squared=0.9823). Thus, these direct correlations established the lowering of measurement time from 12 h to 5 min.
authors.affiliation: INRS-ETE, Université du Québec, 490 rue de la Couronne, Québec, Canada G1K 9A9. tarek.rouissi@ete.inrs.ca
authors.forename: T
authors.initials: T
authors.lastname: Rouissi
authors.forename: R D
authors.initials: RD
authors.lastname: Tyagi
authors.forename: S K
authors.initials: SK
authors.lastname: Brar
authors.forename: D
authors.initials: D
authors.lastname: Prevost
authors.forename: R P
authors.initials: RP
authors.lastname: John
authors.forename: R Y
authors.initials: RY
authors.lastname: Surampalli
mesh_terms: D018929:Cell Culture Techniques / Q000379:methods*; D006863:Hydrogen-Ion Concentration; D010316:Particle Size; D016962:Sinorhizobium meliloti / Q000166:cytology*; D055672:Static Electricity; D013535:Suspensions / Q000737:chemistry*; D014783:Viscosity
chemical_list: D013535:Suspensions