• 한국식품조리과학회지
• /
• 제19권5호
• /
• pp.659-666
• /
• 2003

The purpose of this study was to standardize the various methods and recipes of Hwajeun (glutinous rice pancake with flower) that appeare in the literature. For this purpose, the effects on sensory and physical characteristics of Hwajeun in various kinds of dipping syrups (S1 : honey, S2 : rice syrup, S3 : com syrup, S4 : sugar syrup and S5 : sugar) during storage for 24hrs were investigated. This experiment consisted of the measurement of water content, color difference meter, texture analyser and sensory evaluation for acceptance (color, flavor, moistness, softness, chewiness, adhesiveness, sweetness and overall acceptability). The moisture contents decreased with increasing storage time, indicating that S1 had a significantly (p<0.01) high value until 12hrs. The colorimetric values of lightness (L), redness (a) and yellowness (b) decreased and the total color difference values ($\Delta$E) increased with increasing storage time. In the two bite compression test, the hardness of S1 and S3 showed significantly (p<0.0001) lower values than other samples. As a result of the sensory evaluation for Hwajeun prepared with various kinds of dipping syrup, S1 and S3 were most preferred in color, flavor, moistness, chewiness, adhesiveness, sweetness and overall acceptability of sensory evaluation.

• 한국식품조리과학회지
• /
• 제21권4호
• /
• pp.528-535
• /
• 2005

This paper aims to compare and evaluate the quality of beef jerky made with Korean beef meat, Korean beef cattle and imported beef meat from Australia and New Zealand through sensory evaluation, measurement of hardness, thickness and contents of the moisture and crude lipid, and microscopic texture observation (SEM). According to the sensory evaluation, beef jerky made with Korean beef meat recorded the highest score in overall acceptability; New Zealand beef meat, the lowest. The preference of beef jerky made with Korean beef meat was shown in the appearance, smell, and texture, and especially in the taste. Whereas Korean beef jerky scored highest in color, glaze and palatability, New Zealand beef meat showed the lowest score. Korean beef meat showed the lowest in hardness, but New Zealand beef meat showed the highest as shown in the result of technical evaluation through rheometer. The evaluation through colormeter concluded that New Zealand beef meat had the highest scores in L and a values, but that Korean beef meat showed the lowest score. When it comes to the color difference compared with Korean beef meat, New Zealand beef meat showed the biggest difference. Although the moisture contents of jerky made with different beef meat showed little difference, the content of the crude lipid of jerky made with Korean beef meat and Australian beef meat was lower than that of Korean beef cattle and New Zealand beef meat. When the beef jerky is dry, fat contained in the beef meat is dissolved, which causes the glaze on the outside. Scanning electron micrographs showed that Korean and Australian beef jerky had larger gaps than Korean beef cattle and New Zealand beef jerky. It was concluded that this affected the hardness of beef jerky.

• 한국식품조리과학회지
• /
• 제18권6호
• /
• pp.562-566
• /
• 2002

Seolgiddeok a representative rice cake was prepared by the addition of silkworm powder(SP) at various concentrations, and their physical characteristics were monitored by sensory evaluation, chromaticity, and rheometric measurement. In the proximate composition of SP cake, the contents of crude protein and ash were increased as the ratio of SP increased, but the moisture content was decreased. In the sensory evaluation, 3%-SP cake showed the highest preference, old showed the highest values in color, flavor, taste. texture, and overall duality. Lightness(L) value of SP cake was decreased as the ratio of SP increased. In the rheometer test, 15%-SP cake showed the highest value in the hardness, but 3%-SP cake showed the highest value in cohesiveness, gumminess and brittleness.

• Asian-Australasian Journal of Animal Sciences
• /
• 제27권6호
• /
• pp.880-885
• /
• 2014

Experiments were conducted to evaluate the effect of an outdoor-grazed raising model on meat composition, physical properties and sensory attributes of Taiwan game hens. Six hundred 1-d old female chicks were raised on a floor for 8 weeks. On day 57, 600 healthy birds, with similar body weight, were selected and randomly assigned to three treatment groups (cage, floor-pen and free-range). The results showed that different feeding models had no effect on drip loss, cooking loss, moisture, crude protein, crude fat, crude ash, zinc and calorie contents in breast meat and moisture content in thigh meat. The free-range group had the lowest fat content in both breast and thigh meat, and the lowest calorie content in thigh meat. The firmness and toughness in both thigh and breast of the free-range group were the highest values (p<0.05). The crude protein, total collagen, zinc and iron contents in thigh meat and total collagen content in breast meat of the free-range group were significantly higher than those of the cage-feeding group (p<0.05). The meat sensory scores of flavor, chewiness and overall acceptability of both thigh and breast meat of the free-range group were significantly (p<0.05) better than those of the other two groups. Moreover, the current findings also indicate that the Taiwan game hens of the free-range feeding model displayed well-received carcass traits and meat quality, with higher scores for flavor, chewiness and overall acceptability for greater sensory satisfaction in both breast and thigh meat. In addition, the thigh meat contained high protein and total collage but low fat, offering a healthier diet choice.

• 한국식생활문화학회지
• /
• 제30권5호
• /
• pp.667-673
• /
• 2015

This study was conducted to investigate the effects of chlorella powder on quality characteristics of maejakgwa (a Korean traditional cookies). Maejakgwa was prepared with different amounts of chlorella powder (in ratios 0, 1, 2, 3, and 4% of flour quantity). The moisture, crude ash, crude protein, and crude lipid contents of used chlorella powder were 2.38, 7.25, 65.95, and 0.95% respectively. The pH of maejakgwa dough decreased significantly as the level of chlorella powder increased; however, density of the batter, spread factor values, and moisture contents of the groups increased significantly with higher level of the chlorella powder. In addition, Hunter's color L, a, and b values decreased significantly with increasing amounts of chlorella powder. In the texture meter test, hardness increased according to increasing concentration of chlorella powder. Finally, maejakgwas containing 1~2% chlorella powder had the highest sensory evaluation. From these results, we suggest that chlorella powder is a good ingredient for increasing consumer acceptability as well as functionality of maejakgwas.

• 한국식품조리과학회지
• /
• 제12권4호
• /
• pp.481-486
• /
• 1996

This study was compared with conventional kochujang and the preparation of saccharification kochujanf with the utilization of waste cooked rice, rice cake, bread. Saccharification kochuiang tested to estimated the pH, reducing sugar and changes of organic acid conients, sensory evaluation during the aging at 60 days. Moisture content were increased about B-10% nd crude fat contents were decreased about 20-40% during the aging at 60 days. Change of pH value of kochujang reduces gradually from pH 5.0 up to pH 4.7 during the aging. Total reducing sugar contents of saccharification kochujang reached maximum value at 50 days. The Products of organic acids of during aging were acetic acid, lactic acid, malic acid, tartaric acid and citric acid of the chief of source. Sensory evaluation conducted by fifteen students as panelists showed that were at 1% level significant difference 7 samples in color, flavour, apperance.

• 한국조리학회지
• /
• 제13권4호
• /
• pp.119-127
• /
• 2007

Pine mushroom is excellent for its unique smell, nutrients and functional factors. The quality characteristics of Demi-glace sauce made from pine mushrooms that have not been used despite their value as good ingredients and mushrooms that have been added to various kinds of sauce were examined by differing pine mushroom and mushroom powder in stock. The more pine mushroom and mushroom powder was added, the content of minerals increased; however, the content of moisture decreased. Overall, viscosity was increased. The content of each mineral varied in proportion to pine mushroom and mushroom powder contents level. Sensory evaluation of pine mushroom added to demi-glace sauce showed difference in sweetness, savory taste overall. 0.2% addition of sweetness, 0.3% addition of savory taste, 0.2% and 0.3% addition of overall acceptability appeared as the best estimation. Specially, 0.2% addition was the highest in salty taste and color. As the two mushroom powder contents was increased, tastes of demi-glace sauce were not increased; rather, the appropriate amount of addition existed.

• 한국식품영양학회지
• /
• 제21권1호
• /
• pp.22-27
• /
• 2008

This study investigated the quality characteristics of the Seolgiddeok samples prepared with various amounts(0, 0.5, 1.0 and 2.0%) of Paecilomyces japonica powder by examining proximate compositions, color, texture and sensory quality. The composition of the Paecilomyces japonica powder was measured as follows: moisture(7.40%), crude protein(55.77%), crude lipid(7.1l%), and crude ash(5.39%). With increasing Paecilomyces japonica powder content, the moisture and crude protein content of the Seolgiddeok increased; however crude fat and ash contents decreased. In terms of color, the lightness of the Seolgiddeok decreased and yellowness and redness increased with increasing amounts of Paecilomyces japonica powder. Among textural characteristices hardness, cohesiveness, and gumminess were decreased, but springiness increased according to the addition level of Paecilomyces japonica powder. For the sensory evaluation, the overall quality of the SP-l.0% group was not significantly different than the control group(SP group). In conclusion, the optimal addition amount of Paecilomyces japonica powder for Seolgiddeok is proposed as 1% of total weight.

• 한국축산식품학회지
• /
• 제33권5호
• /
• pp.572-580
• /
• 2013

This study was carried out to evaluate the effect on properties of restructured jerky by the addition volume of additives. The treatments were divided into glutinous rice flour, potato starch, soybean and acorn powder. Moisture content, water activity ($a_w$), thiobarbituric acid reactive substances (TBARS), color, yield and sensory evaluation were performed. The moisture contents of four types of restructured jerkies were in the range of 8.92-12.47%, and were lower than that of the control (17.92%). Water activity tended to decreased with increasing addition of all treatments. The restructured jerkies containing glutinous rice flour, potato starch, soybean and acorn powder had lower TBARS than the control. The drying yield tended to increase with increasing amount of additives. In the sensory evaluation results, the highest overall acceptability was found in jerky containing glutinous rice flour, potato starch, and acorn powder when the addition was 9%, while that for soybean powder was determined to be 5%. These results suggest that 9% additions of glutinous rice flour, potato starch or acorn, or 5% soybean powder are optimal addition volumes for the preparation of restructured jerkies.

• 한국식생활문화학회지
• /
• 제23권6호
• /
• pp.748-754
• /
• 2008

The principal objective of this study was to evaluate the quality characteristics of pound and sponge cakes prepared with Cucurbita maxima Duchesne (C. Maxima Duch.) puree, via physical and sensory examinations. The cakes were formulated by repalcing the egg with C. maxima Duch. puree at concentrations of 0, 10, 20 and 30%. C. maxima Duch. puree contained 87.91% water, 0.58% ash, 1.68% protein, 0.55% lipid, 1.02% fiber, and 8.26% carbohydrate. The physicochemical properties of the pound and sponge cakes evidenced similar patterns. The specific gravities of the pound and sponge cakes increased with increasing substitution levels, whereas the specific volumes were reduced. The hardness values of the pound and sponge cakes containing the C. maxima Duch. puree were higher than those of the controls. Substituting C. maxima Duch. puree for egg resulted in reduced lightness and increased redness in the cakes. Pound and sponge cakes with C. maxima Duch. puree evidenced higher moisture contents than the controls over 5 days of storage. Overall acceptances in sensory evaluation scored higher in the 20% substituted pound and sponge cakes.