Eter--the sulfur The response surface, reflecting the dependence of your parameter--theEter--the sulfur The response surface,

Eter–the sulfur The response surface, reflecting the dependence of your parameter–the
Eter–the sulfur The response surface, reflecting the dependence in the parameter–the sulfur content material on the on the variable factors–the amount sulfating complex, along with the duration of content material variable factors–the quantity of the of the sulfating complex, along with the duration on the sulfation procedure, has thehas the form of a curvedwith maxima for X1 and X1 and X3and plus the sulfation procedure, type of a curved plane plane with maxima for X3 of three.5 of three.5 2.3, respectively (Figure 4b). 4b). 2.three, respectively (Figure The dependence with the output parameter (sulfur content material in Decanoyl-L-carnitine Autophagy xanthan sulfate) on variable variThe dependence in the output parameter (sulfur content material in xanthan sulfate) on factorsable components of the temperature and duration of the xanthan sulfation the formin the form of the temperature and duration of your xanthan sulfation method in approach of a responsea response surface has thecurved plane thatplane that plateau soon after X3 valuesX3 values of surface has the form of a kind of a curved reaches a reaches a plateau after of 2.three h (Figureh (Figure 4c). of 2.3 4c). The coefficient of determination is R2 adjR2adj = 93.8 . This testifies to theadequacy of EquaThe coefficient of determination is = 93.eight . This testifies to the adequacy of Equation (1) towards the observation final results and allows making use of it it as a mathematical model on the protion (1) to the observation outcomes and allows Charybdotoxin Potassium Channel employing as a mathematical model of your method beneath study. cess under study. The calculated optimal conditions for the sulfation of xanthan with sulfamic acid within the calculated optimal conditions for the sulfation of xanthan with sulfamic acid in 1,4-dioxane within the presence of urea (to obtain xanthan sulfate having a sulfur content of 13.1 1,4-dioxane within the presence of urea (to get xanthan sulfate using a sulfur content of 13.1 wt ) are: the quantity of sulfating complex per 1 g of xanthan three.5 mmol, temperature 90 C, wt ) are: the volume of sulfating complicated per 1 g of xanthan three.5 mmol, temperature 90 and duration 2.three h. , and duration two.three h. 3.3. FTIR Spectroscopy 3.3. FTIR Spectroscopy The characterization from the parent and sulfated xanthan was performed by FTIR The five). The FTIR spectra of the starting xanthan gum include functional by FTIR analysis (Figurecharacterization of the parent and sulfated xanthan was performed groups analysis (Figure 5). The FTIR spectra from the starting xanthan gum include functional groups of of carbonyl, carboxyl, and acetal groups in xanthan gum [5,49]. carbonyl, carboxyl, and acetal groups in xanthan gum [5,49].wt ) are: the amount of sulfating complicated per 1 g of xanthan three.5 mmol, temperature 90 , and duration 2.3 h. 3.3. FTIR SpectroscopyFoods 2021, 10,The characterization on the parent and sulfated xanthan was performed by FTIR of 15 8 analysis (Figure five). The FTIR spectra of your starting xanthan gum include functional groups of carbonyl, carboxyl, and acetal groups in xanthan gum [5,49].Figure five. FTIR-spectra: 1–initial xanthan, 2–sulfated xanthan. Figure 5. FTIR-spectra: 1–initial xanthan, 2–sulfated xanthan.The principle FTIR peaks remained virtually unchanged just after sulfate modification. The introduction of a sulfate group into a xanthan molecule changes the FTIR spectra. Therefore, absorption bands appear at 1247 cm-1 , which correspond to the vibrations of the sulfate group. Within the FTIR spectrum of sulfated xanthan, in comparison using the initial xanthan, there is absolutely no absorption band at 1735 cm-1 , and there is a noticeable lower in th.