• Journal of the East Asian Society of Dietary Life
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• v.18 no.6
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• pp.974-980
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• 2008

The principal objective of this study was to assess the sensory quality, degree of gelatinization, color, texture and moisture content of Paeksulgis to which barley was added. The results were as follows: The moisture contents were approximately $35{\sim}39%$. In terms of the Hunter's color values of Paeksulgis of the control, the lightness (L) was 87.63, redness (a) was -1.07, and yellowness (b) was 5.06. The L-value of the control group was high, at 87.63; the L-values of the A1, A2, and A3 groups were 85.97, 83.74, and 83.56, respectively. As the quantity of barley increased, the L-value of the Paeksulgis decreased. The gelatinization of Paeksulgis to which barley was added decreased most profoundly in the A3 group. In terms of sensory quality, Paeksulgis with 10% added barley evidenced the most favorable sensory qualities. In terms of the mechanical characteristics of Paeksulgis, cohesiveness was the highest in the control group, while springiness, gumminess, and brittleness were the lowest. Springiness, and brittleness were decreased reduced with increases in the amount of added barley powder. Brittleness was increased by increases in the amount of added barley powder.

• Korean journal of food and cookery science
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• v.20 no.6 s.84
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• pp.637-642
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• 2004

Paeksulgis (Korean rice cake), containing $0\~0.5\%$ Opuntia Ficus indica var. Saboten powder, was prepared to enable the quality of the mechanical and sensory characteristics to be tested. The pHs of the Paeksulgis without and with 0.05 to $0.5\%$ Opuntia Ficus indica var. Saboten powder were 5.99 and about 5.7 respectively. With regard to the Hunter's color values of the control Paekulgis, the lightness (L), redness (a) and yellowness (b) were 94.78, -0.01 and 5.58, respectively. The lightness (L) decreased with increasing Opuntia Ficus indica var. Saboten powder concentration, whereas the redness (a) and yellowness (b) were both increased. with regard to the mechanical characteristics of Paeksulgis, the strength hardness, adhesiveness and gumminess were highest in the control group. In the sensory evaluation of Paeksulgis, the control group had the highest score for texture (p<0.05), but the addition of Opuntia Ficus indica var. Saboten powder gave higher scores for color, flavor, moisture, consistency, after taste and overall preference than the control (p<0.05).

• Journal of the East Asian Society of Dietary Life
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• v.9 no.3
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• pp.370-375
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• 1999

This study was attempted to examine the sensory quality, the degree of gelatinization, color, texture and moisture content of Paeksulgies made with black color rice. The results were as follows: The moisture contents was about 32-36%. L-value on the control group was high, 94.74 and $A_1$, $A_2$, and $C_1$ group were 78.72, 78.58, and 78.43 respectively. As the amount of color rice was increased, L-value on the Paeksulgis was decreased. The gelatinization of Paeksulgis added with color block rice was most increased at C group and D group. In sensory quality. Paeksulgis added with 4-10% block color rice showed the most favorable sensory evaluation.

• Food Science and Preservation
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• v.8 no.4
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• pp.427-433
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• 2001

The purpose of this study was to investigate the effect of chitosan on the shelf-life and quality of Paeksulkis(Korea rice cake). Paeksulgis containing 0-0.5% chitosan were stored at 5$^{\circ}C$ for 4 week and 2$0^{\circ}C$ for 1 week to test the effect of extenting shelf-life of Paeksulgis by chitosan. The pH of Paeksulkis was 5.65 without chitosan and pH of those were about 7.0(6.94-7.01) with 0.05-0.5% level of chitosan. Moisture content of Paekrukis wish or without chitosan was 38-40%. In Hunter’s color values of Paeksulkis of control, the lightness (L) was 84.28, redness(a) was -1.56 and yellowness(b) was 7.68. The lightness (L), redness(a) and yellowness(b) of Paeksulkis were increased by the increasing concentration of chitosan. In mechanical characteristics, cohesiveness concentration of Paeksulkis were the highest in control while obtained the highest score in color, after swallowing and overall quality (p<0.05). The score of flavor and consistency of Paeksulkis with different levels of chitosan wre not significant while the score of moisture in Paeksulkis with 0.05-0.5% level of chitosan was significantly higher than control (p<0.05). The score of flavor and consistency of Paeksulkis with different levels of chitosan were not significant while the score of moisture in Paeksulkis with 0.05-0.5% level of chitosan was significantly higher than control (p<0.05). Total bacterial counts (TBC) of Paeksulgis immediately before storage were 4.2$\times$10$^2$CFU/g in control and those containing 0.3-0.5% of chitosan were 0.5-1.0 log cycle lower than control. TBC of Paelsulgis containing chitosan was lower than increased for 2 weeks, reached at 1.8$\times$10$^{5}$ CFU/g and decreased for 2 weeks, reached at 1.8$\times$10$^4$CFU/g during storage at 5$^{\circ}C$. TBC of Paeksulkis with more than 0.3% of chitosan were 1.9 log cycles lower than that of control during storage at 5$^{\circ}C$. TBC of Paeksulkis with more than 0.3% of chitosan were 1.9 log cycles lower than that of control during storage at 5$^{\circ}C$ for 4 weeks. TBC of Paeksulgis increased to 10$^{8}$ CFU/g in control and 10$^{6}$-10$^{7}$ CFU/g in more than 0.3% chitosan during storage at 20$^{\circ}C$ for 1 week. The shelf-life of Paeksulkis was increased with increasing concentration of chitosan both temperature at 5$^{\circ}C$ and 20$^{\circ}C$.

• Food Science and Preservation
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• v.9 no.3
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• pp.321-326
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• 2002

Paeksulkis(Korean rice cake) containing 0-0.5% chitosan were prepared for test the quality of microbiological, mechanical and sensory characteristics. The pH of Paeksulkis was 5.65 without chitosan and that was about 7.0 with 0.05-0.5% level of chitosan. In Hunter's color values of Paeksulkis of control, the lightness(L) was 84.28, redness(a) was -1.56 and yellowness(b) was 7.68. The lightness(L), redness(a) and yellowness(b) were increased with increasing concentration of chitosan in Paeksulkis. In mechanical characteristics of Paeksulkis, cohesiveness and springiness were the highest in control group while strength, hardness, gumminess and brittlenes were higher in chitosan added group than control group. In sensory evaluation of Pasksulkis, control group obtained the highest score in color, texture, after swallowing and overall quality(p<0.05) but chitosan added group obtained higher scores in moisture than control(p<0.05). Total bacterial counts(TBC) of Paeksulgis immediately before storage were 4.2∼9.2$\times$10$^2$CFU/g and those of control increased for 2 weeks, reached at 7.4$\times$10$\^$5/ CFU/g and then decreased about 1 log cycle for 2 weeks during storage at 5$\^{C}$. TBC of Paeksulgis added 0.3∼0.5% of chitosan were 2 log cycles lower than that of control at the end of storage at 5$\^{C}$. TBC of Pasksulgis control increased to 10$\^$8/ CFU/g during storage at 20$\^{C}$ but that of 0.5% chitosan added group was 1 log cycle lower than control at the end of storage. Shelf-life extension of Paeksulkis by chitosan was more effective during storage at 5$\^{C}$ than at 20$\^{C}$.

• Food Science and Preservation
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• v.7 no.4
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• pp.380-383
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• 2000

This study attempted to examine the sensory quality, the degree of gelatinization, color, texture and moisture content of Paeksulgis prepared with different level of Gardenia jasminoides. The moisture contents were about 39∼43% in the Paeksulgies prepared with different level of Gardenia jasminoides. L-value on the control group was high, 93.24. and G$_2$was 90.49, high, but another group were about 82∼86, it was not siginificantly. As the amount of Gardenia jasminoides was increased, a-value on the Paeksulgies was decreased, showed green color. In case of Gardenia jasminoides, b-value of the control group was very low, 10.08. As the amount of Gardenia jasminoides was increased, b-value on Paeksulgies was increased. In sensory quality, Paeksulgies by the amount of 2∼3% water extracted Gardenia jasminoides showed the most favorable sensory evaluation.