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Original Articles

Rheological and some Physicochemical Properties of Selected Hydrocolloids and their Interactions with Guar Gum: Characterization using Principal Component Analysis and Viscous Synergism Index

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Pages 1655-1667 | Received 08 Jan 2012, Accepted 24 Feb 2012, Published online: 24 Apr 2014

Figures & data

Table 1 Some physicochemical properties of selected gum samples

Table 2 Viscous synergism index values of mixed gum solutions (0.5% w/v) at constant shear rate and temperature (50 s−1 and 25°C)

Figure 1 Variation in apparent viscosity values of gum samples versus shear rate at constant temperature (25°C).

Figure 1 Variation in apparent viscosity values of gum samples versus shear rate at constant temperature (25°C).

Table 3 Estimation of apparent viscosity of hydrocolloid solution using binary mixture model.a

Figure 2 Apparent viscosity values of selected gum samples at constant shear rate (50 s−1) and temperature (25°C).

Figure 2 Apparent viscosity values of selected gum samples at constant shear rate (50 s−1) and temperature (25°C).

Figure 3 Variation in consistency coefficient (a) and (c) and flow behavior index (b) and (d) of selected gums at constant temperature (25°C). (a) Consistency coefficient of sole gums, (b) flow behavior index of sole gums, (c) consistency coefficient of interactions, and (d) flow behavior index of interactions.

Figure 3 Variation in consistency coefficient (a) and (c) and flow behavior index (b) and (d) of selected gums at constant temperature (25°C). (a) Consistency coefficient of sole gums, (b) flow behavior index of sole gums, (c) consistency coefficient of interactions, and (d) flow behavior index of interactions.

Table 4 Correlation matrix of physicochemical and rheological characteristics of hydrocolloids

Table 5 Results from the principal component analysis for the first six principal components

Table 6 Principal component factor loadings of hydrocolloid samples

Figure 4 Plot of the first two principal component loading vectors.

Figure 4 Plot of the first two principal component loading vectors.

Figure 5 Plot of the first two principal component score vectors (a) and biplot representing both samples and rheological and physicochemical characteristics of hydrocolloids (b).

Figure 5 Plot of the first two principal component score vectors (a) and biplot representing both samples and rheological and physicochemical characteristics of hydrocolloids (b).

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