• Proceedings of the Korean Society for Technology of Plasticity Conference
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• 2005.05a
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• pp.341-341
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• 2005

• Korean Journal of Food Science and Technology
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• v.33 no.4
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• pp.469-473
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• 2001

Fuji apples were sliced and dipped in distilled water, 1% (w/v) ascorbic acid and 1% (w/v) oxalic acid. After minimal processing, the slices were packaged with three films which have different gas transmission rate and stored in cold room$(0-2^{\circ}C)$. The visual quality, gas composition, pH, texture, soluble solids content and titratable acidity were determined. The most deteriorative effects on quality were produced by browning of flesh. Ascorbic acid inhibited the development of browning and extended storage life from 7 days of control to 14 days at $0-2^{\circ}C$. Minimally processed Fuji apple treated with ascorbic acid and P640 film showed exhausting of oxygen in the packaging after 14 days. It showed only a slight reduction of pH from 3.73 to 3.72. The visual quality, gas composition, pH, texture, soluble solids content, titratable acidity were slightly changed, indicating that higher quality was maintained during storage. Ascorbic acid inhibited the development of browning and extended storage life of fresh-cut Fuji apple.

• Culinary science and hospitality research
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• v.23 no.3
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• pp.147-157
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• 2017

This study investigated quality characteristics and sensory properties of gluten-free bread using teff flour and various gums. The five samples used in this study were control (wheat flour), T (teff flour), TG (teff flour, guar gum), TX (teff flour, xanthan gum), and TGX (teff flour, guar gum, xanthan gum). Baking loss, moisture content, pH, salinity, brix, dough expansion, color value, texture property, and sensory property were measured for each sample. As a result, pH was the highest in TX at 6.11 and the lowest in the control at 5.77. Salinity was the highest in the control at 0.80% and lowest in TG at 0.04%. Brix was the lowest in TX at $1.10^{\circ}Bx$. While moisture content was the highest in the control at 43.58%, gluten-free breads using teff flour had no significant difference (p<0.05). Baking loss rate of bread was no significant difference among samples (p<0.05). Dough expansion rate by fermentation was the highest in the control at 108.89% and the lowest in T at 17.84%. L-value of crust had no significant difference (p<0.05). For L-value of crumb, the control was the highest at 64.34 and T was the lowest at 33.84. In texture properties analysis, hardness was the highest in TGX at 16.00 N and the lowest in the control at 2.87 N. There was no significant difference in springiness (p<0.05). Chewiness was the highest in TX and TGX. The result of sensory properties was that while there were no significant differences in color, salty taste, flavor, and overall acceptability, there was a significant difference in softness and sweetness (p<0.05). These results showed that use of teff flour and gums rather than using only teff flour for bread manufacturing can improve quality characteristics in dough expansion and texture properties. It is considered that xanthan gum or guar gum are appropriate on bread using teff for quality characteristics.

• Proceedings of the Korean Society of Near Infrared Spectroscopy Conference
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• 2001.06a
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• pp.1256-1256
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• 2001

The physico-chemical and texture characteristics of meat determine the nutritional, technological and sensory quality. However, the analysis of meat quality requires expensive, laborious and time consuming analytical methods. The objective of this study was to evaluate NIR spectroscopy using transmittance for determining the moisture, fat, protein and total pigment content, the water holding capacity (WHC) and the toughness of beef meat. A total of 318 spectra were recorded from ground beef samples by a Feed Analyzer 1265 of Infratec. The samples were obtained from the Longissimus muscle of the 10$^{th}$ rib of yearling bulls, ground with an electrical chopper, vacuum packaged, aged during 7 days and frozen at -24$^{\circ}C$ until the analyses were done. Moisture content was measured by oven drying at 10$0^{\circ}C$, fat content was determined by Soxhlet extraction and protein content was estimated from nitrogen content using the Kjeldahl analysis. The total pigment content was determined by the method of Hornsey and the WHC using the method of filter paper press. The instrumental evaluation of texture (maximum load WB, maximum stress MS and toughness) was conducted in an Instron equipment with a Warner-Bratzler shearing device. This analysis was performed on a chop of 3.5 cm obtained from the longissimus of the 8$^{th}$ rib, aged during 7 days, kept frozen at -24$^{\circ}C$ and cooked before the analysis. Near infrared spectra were recorded as log 1/T (T=transmittance) at 2 nm intervals from 850 to 1050 nm using a Feed Analyzer 1265 of Infratec. Calibrations were performed with the WinISI software (vs. 1.02) using the MPLS method. To examine the effect of scatter correction o. derivation of spectra on the calibration performance, calibrations were calculated with the crude spectra or pretreated with different mathematical treatments (inverse MSC, SNVD) and/or second derivative operation. For chemical composition, the use of the scatter corrections improved the calibration statistics, in terms of lower SECV and higher $r^2$. In most of the variables, the use of the 2$^{nd}$ derivative improved the predictions, mainly when combined with the SNVD treatment. However, for predicting the texture traits, the best estimation was obtained from the crude spectrum. These results showed that the equations obtained for predicting moisture, fat and total pigments were very accurate, with $r^2$ being higher that 0.9. However, the prediction of the texture traits (WB, MS, toughness) from ground meat was poor.

• Culinary science and hospitality research
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• v.16 no.3
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• pp.286-297
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• 2010

This study examines physiochemical characteristics of functional bread with black garlic flour added such as its content, texture, sensory test and quality properties. The loaf volume and weight of black garlic flour-added pan bread showed that for the control, the loaf volume was the greatest, and the more the black garlic flour content increased, the smaller the loaf volume became. The change of crust chromaticity showed that the L value decreased significantly, and crust chromaticity thickened, and as the black garlic flour content increased, a value and b value decreased. The characteristics of texture showed that the hardness and chewiness decreased as the black garlic flour content increased, and gumminess increased significantly while there was no significant difference in cohesiveness. The flavor, taste and texture of pan bread with black garlic flour content didn't showed a significant difference with the control. Consequently, the black garlic flour-added wheat flour was no significant difference with the control up to 3% black garlic flour-added wheat flour, which can be used as a product.

• Korean Journal of Food Science and Technology
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• v.23 no.5
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• pp.538-545
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• 1991

In order to develop low calorie noodles, flours of Jerusalem artichoke and strong wheat were mixed with ratios of 25 : 75, 30 : 70 and 35 : 65. The substitution of wheat flour with Jerusalem artichoke powder up to 25% showed good formation of noodle stripes similar to that of wheat flour alone. The formation was effectively improved by addition of $0.5{\sim}1.0%$ solution alginate, 1.0% Fremol or mixure of 0.5% ${\alpha}-Polygel$, 0.5% Alcalin and 1.5% fremol for $25{\sim}30%$ substitution with Jerusalem articoke powder. Also addition of sodium alginate to the 30% substitution with Jerusalem artichoke powder showed the high Hunter value of Lightness and good cooking quality of noodle, relatively close to those of noodle of wheat flour alone. The dough prepared with mixed flours showed increase in cohesiveness and resilience and decrease in hardness and adhesiveness, compared to those of wheat flour. The addition of sodium alginate was very effective for increase in adhesiveness and cohesiveness. The cohesiveness of cooked noodles was increased with substitution with Jerusalem artichoke powder while sodium alginate influenced little. There is no significant difference of taste, odor, color and texture of cooked noodles between wheat flour alone and composite flours with $25{\sim}30%$ of Jerusalem artichoke and texture modifying agents. The results suggested that good quality noodles could be produced using Jerusalem artichoke powder.

• Korean Journal of Human Ecology
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• v.8 no.1
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• pp.33-48
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• 2005

The purpose of this is to agar powder addition to retard retragradation for making Backsulgi. Backsulgi is manufactured promptly by adding ingredients having agar powder and then observation of sensory and texture characteristics. Then Backsulgi determinded in storing at the temperatures of 20 and Celsius degrees for 0, 24, 48 and 72 hours, respectively. The results from this study are as follow; 1. Moisture absorption of control show 34.4%, compared with, Backsulgi with agar powder added 3%, 6%, 9%, 12%, 15% show higher 37.03%, 39.28%, 41.72%, 43.5%, 44.70%, respectively. 2. In terms of chromaticity, lightness of control show $70.68{\pm}7.248{\sim}61.25{\pm}0.90$, the longer time is and much agar powder Backsulgi show lower and 15% agar powder added Backsulgi show $51.53{\pm}0.921{\sim}54.715$. Then redness(a) of control show $-0.70{\pm}0.14$, compared with 15% agar powder added Backsulgi show $-0.32{\pm}0.047$. 15% agar powder Backsulgi show $9.03{\pm}0.313$ higher in yellowness than control $5.47{\pm}0.40$. 3. Control and agar powder Backsulgi was shown pH 6.1~6.3, the longer time is, all Backsulgi was shown pH 5.5~5.9 and much agar powder Backsulgi was shown an weakly acidity. 4. Swelling and pore ratio of control was shown 85.36% and 118.32%, compared with, agar powder added Backsulgi was higher a rate of increase. 5. For a sensory evaluation, the longer time is, adding agar powder rice cake is more perfected at 20$^{\circ}C$ in times if smooth, inner moisture, chewiness, after selling, overall quality. 6. Determination of texture characteristics by a reometer shows that Backsulgi with agar powder added change more in hardness that controls, indicating that effect of retarding retrogadation is higher when storage time is longer. 7. The correlation of hardness, springness between sensory and instrumental evaluation showed significantly positive function.

• The Korean Journal of Community Living Science
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• v.27 no.4
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• pp.817-829
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• 2016

In order to develop functional hamburger steak patties, various concentrations of lotus root (Nelumbo nucifera) were incorporated into them. The quality characteristics of the hamburger patties prepared after the addition of 5, 10, 15, 20 or 25% (w/w) lotus root were investigated. The moisture contents of the groups with lotus root were significantly higher than that of the control group. The crude fat and crude protein contents of the control group were higher than those of the other groups. No significant difference in the crude ash content was observed among the groups. The cooking loss rate, rate of reduction in diameter, and reduction in thickness of the groups with lotus root were significantly lower than those of the control group. Accroding to the results, lotus root inhibit cooking loss and help to keep moisture after cooking process. No significant difference in the L value was observed among the groups. The a and b values of the groups with lotus root were significantly decreased compared to those of the control group. No significant difference in hardness was observed among the groups. it suggest lotus root didn't affect the texture of hamburger patties. In the quantitative descriptive analysis, no significant difference in the color and fresh odor was observed among the groups. The groups with lotus root were softer than the control group. The groups with 10 to 25 % of lotus root showed higher juiciness and a sweeter taste than the control group. The preference of appearance, texture, flavor and overall acceptability of the groups with 10 to 25% lotus root were higher than those of the other groups, including the control group. In conclusion, lotus root can increase the acceptability of hamburger patties and 10-25% would appear to be the proper amount of it to use.

• Korean journal of food and cookery science
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• v.32 no.5
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• pp.559-566
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• 2016

Purpose: This study was to investigate the quality characteristics of wet noodle added with radish juice containing with pulp. Methods: Wet noodles were prepared with different amounts of radish juice (0%, 20%, 40%, 60%, 80%, 100%, w/w) instead of water. Results: As the amount of radish juice was increased, water absorption, volume increasing rate, and turbidity of soup were decreased. Lightness (L) values of uncooked wet noodles and cooked noodles were decreased with the addition of radish juice, while redness (a) and yellowness (b) values had no tendency of increasing or decreasing, regardless of the amount of radish juice. Moreover, lightness, redness, and yellowness values of uncooked noodles were higher than those of cooked noodles. The texture of cooked noodles showed significant differences in hardness and chewiness. It was increased as the amount of radish juice was increased. Their adhesiveness and springiness were lower than those of the control. Appearance, texture, and overall acceptability of sensory evaluation revealed that the noodle added with 80% of radish juice had the highest scores, although there were no differences among noodles added with different amounts of radish juice. Conclusion: In summary, the most desirable blending ratio of radish juice and water for the kneading of wet noodles was 80:20.

• Applied Biological Chemistry
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• v.33 no.3
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• pp.216-222
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• 1990

For the improvement of the nutritive value of extruded noodles, dry soymilk residue flour (DSRF) was mixed with wheat How. The effects of the addition of DSRF on the viscosity of wheat flour and the quality of cooked noodles were evaluated As the proportion of DSRF addition was in-creased the viscosity of composite flour was decreased And so were the texture and cooking quality of noodles. To improve noodle-making characteristics of extruded noodles with 10% DRFF, Na-alginate, Na-carboxymethyl cellulose, guar gum crude gluten and xanthan gum were added. Then, the noodle-making characteristics were examined. The viscosity increased with the increase in the concentration of additives and Bnnthan gum was the most effective. The texture of noodles supplemented by Na-alginate 2.0%, Na-carboxymethyl cellulose 2.0%, guar gum 2.0%, xanthan gum 1.0% was similar to that of wheat flour noodles. The results of sensory test (color and texture) was coincidal with the results of instumental tests.