• 한국식생활문화학회지
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• 제19권2호
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• pp.150-157
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• 2004

As an attempt to develop new functional health beverage by using medicinal herb, green ginger(Zingiber officinale Roscoe), we investigated the effect of Zingiber officinale on blood pressure and regional cerebral blood flow (rCBF) of rats with Zingiber officinale extracts. Zingiber officinale extract increase rCBF significantly. The drink produced consisted of Zingiber officinale extract 1.825%, maltitol syrup 17.0%, citric aicd 0.06%, ascorbic acid 0.02%, stevioside 0.001%, ginger flavor 0.11% and water. Brix, pH and acidity of product were 13.7, 4.4 and 0.09, respectively. This drink had good score by the sensory evaluation. The above results showed that development of such functional beverage using Zingiber officinale can used as a functional material improving blood circulation in beverage industry.

• 한국식품영양과학회지
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• 제28권3호
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• pp.534-541
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• 1999

This study was undertaken to examine the effect of sea tangle and sea mustard on physiochemical and sensory characteristics of cakes and the possibility commercialization of these functional cakes. The moisture contents of cakes prepared with sea tangle and sea mustard were higher than those of control, and a positive correlation between water holding capacity(WHC) and moisture contents was observed(r=0.836). As addition level of sea tangle and sea mustard was increased, volume of cakes were decreased, whereas hardness was increased slightly and color became deep. Hardness was strongly correlated to the volume of cakes(r= 0.914). Visual observation by photomicrography showed that, as addition level of sea mustard and sea tangle was increased, formation of air cells were prohibited and thus volume of cakes was decreased. The microstructural observation by scanning electron microscopy(SEM) showed that air cells of cakes were well developed up to 5% addition of sea tangle powder. As a result of the sensory evaluation for the cakes prepared with sea tangle and sea mustard, no significant difference was observed between control and those addition levels up to 5%. Flavor was proved to be the most important factor in determining overall acceptability and hedonic hardness score was inversely correlated to the objective hardness value(r= 0.853).

• 한국식품영양과학회지
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• 제27권5호
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• pp.858-863
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• 1998

The Mixed effect of Salvia miltiorrhiza and Glycyrrhiza uralensis(SG) on kimchi fermentation was investigated by measuring changes of physicochemical, icrobiological and sensory qualities of kimchi during fermentation. The pH of SG-added kimchi was a little higher than that of control during the fermentation. Titratable acidity, viable cell of total bacteria and lactic acid bacteria in mixed medicinal herbs(SG) added kimchi were changed more slowly than those in control. The inhibitory effect of the mixture on kimchi fermentation was increased as the concentration of the mixture was increased from 1% to 5%. Total bacteria and lactic acid bacteria of 3% and 5% SG-added kimchi reduced to 1.3~2.9 and 1.2~4.0 log10 cycle after 15 days fermentatin compared to control. The changes in texture of SG-added kimchi was a higher and sour taste of SG-containing kimchi excepts of 1% SG-added kimchi was more weak than that of control. Sensory score of flavor and overall acceptability did not show any significant difference between SG-added kimchi and control during fermentation. But SG-added kimchi decreased its sensory quality by 5% the other kimch.

• 한국식품영양학회지
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• 제34권4호
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• pp.347-355
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• 2021

This study evaluated the quality and antioxidant activities of pork patties after adding Cirsium nipponicum powder in a ratio of 0%, 1%, 2%, 3%, and 4%, and the potential of Cirsium nipponicum as a functional food. The moisture content increased with an increase in the Cirsium nipponicum powder content while the pH, cooking loss rate, diameter loss rate decreased. The L and b values decreased with increase in the Cirsium nipponicum powder content while the a value increased; this trend was observed before and after heating the patties. The hardness, chewiness, and gumminess increased with increase in the Cirsium nipponicum powder content. Consumer acceptability test revealed that the 2% Cirsium nipponicum powder group had a higher score than the other groups in respect to color, flavor, taste, texture, and overall acceptance. Notably, as the Cirsium nipponicum powder content increased, there was an increase in the antioxidant activities; increased total pheonlic, flavonoid, DPPH radical scavenging activity and ABTS radical scavenging activity. Based on the present study results, adding 2% of Cirsium nipponicum powder into pork patties achieved the best functionality and sensory qualities.

• 한국축산식품학회지
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• 제39권2호
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• pp.197-208
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• 2019

The aim of this study was to investigate the relation of sensory quality traits of cooked beef to fresh meat quality and histochemical characteristics, especially muscle bundle traits, in the longissimus thoracis muscle of Hanwoo steers. Cooking loss negatively correlated with softness, initial tenderness, chewiness, rate of breakdown (RB), and amount of perceptible residue (AR) after chewing (p<0.05), and drip loss showed negative correlation with RB and AR (p<0.05). All the attributes of tenderness exhibited negative correlation with the Warner-Bratzler shear force value (p<0.05). Marbling score and the intramuscular fat (IMF) content showed positive correlation with all the organoleptic characteristics, including tenderness attributes, juiciness, and flavor (p<0.05). Regarding histochemical characteristics, muscle fiber size did not have a significant correlation with all the sensory quality traits, although the area percentage of type I fiber was related with softness, initial tenderness, and chewiness (p<0.05). On the contrary, the characteristics of muscle bundle were related to all the sensory tenderness attributes (p<0.05), and the sensory tenderness increased with smaller muscle bundle size (p<0.05). These results suggest that the IMF content and bundle characteristics can be used as indicators for explaining the variations in sensory tenderness in well-marbled beef.

• 한국식품영양학회지
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• 제34권1호
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• pp.1-14
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• 2021

This study evaluated the antioxidant activity and quality characteristics of rice cookie with added butterbur powder in a ratio of 0, 5, 10, 15, and 20% to confirm the possibility of butterbur as a functional food. The moisture content, spread factor, leavening rate, and hardness of rice cookies increased with an increase in the amount of butterbur powder; whereas a decrease in the pH and baking loss rate was observed. The L and b values decreased as the amount of butterbur powder increased, but the value was the lowest when 5% of butterbur powder was added. The sensory liking score showed the highest preference for 10% butterbur powder regarding appearance, flavor, taste, texture, and overall preference. In the principal component analysis (PCA), the addition of 10% butterbur powder positively affected the measure of food acceptance in terms of organoleptic properties of butterbur. Besides, as the amount of added butterbur powder increased, the antioxidant activity of rice cookies increased. Based on these results, it appears that the addition of butterbur powder to rice cookies in a 10% ratio can produce rice cookies with excellent antioxidant activity, overall quality, and high preference.

• 한국식생활문화학회지
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• 제37권2호
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• pp.133-142
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• 2022

The purpose of this research was to examine the preferences of five traditional Korean drinks and analyze the factors affecting the preferences of children aged 7-12 in Korea, Vietnam, and China. The samples used in a sensory test were omija-cha, yuza-cha, sujeonggwa, sikhye and misutgaru. The test was performed to examine the overall, appearance (color), odor, taste and mouth-feeling and a sweetness intensity using 5 point hedonic scale (1=dislike extremely, 5=like extremely) and, check-all-that-apply (CATA) method was performed to determine preference and non-preferences factors. The preference of all samples except sujeonggwa showed significant differences in all items of the preferences (p<0.001). Almost items of the preference was rated more than 4 points in Chinese and Korea children. The sweetness intensity showed also significant differences in all items of the preferences except sujeonggwa (p<0.001), and evaluated as not sweet-appropriate with the score between 2 and 3 points. Sweetness, color, mouth-feeling, familiar flavor and healthy feeling was selected for the factors affecting the preferences. In conclusion, the result of this study determine the preferences and the affecting factors for the traditional Korean drinks in children of Korea, Vietnam, and China.

• 한국식품과학회지
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• 제28권4호
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• pp.762-771
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• 1996

무의 품종과 계절별로 깍두기의 품질 중 향미 특성이 일정하게 유지되는지 알아 보고자 깍두기의 향미 성분 분석 및 관능 검사를 수행하였으며 또, 향미 특성치들 간의 품종별 계절별 차이와 상관관계 및 관능 검사의 전체적인 수용도에 영향을 미치는 특성치들을 알아 보았다. 소형무 깍두기는 대형무 깍두기에 비해 숙성 전 기간동안 pH는 약간 높았고 산도는 약간 낮게 유지되었다. 계절별 깍두기의 pH는 봄, 여름, 가을의 순으로 각각 평균 3.85, 3.99, 4.46이었다. 총산도의 증가 경향은 전 품종 모두 봄 및 여름무에 비해 가을무의 증가 정도가 컸으며, 소형무보다 대형무의 총산도 증가가 컸다. 계절별로 깍두기 숙성기간동안의 평균 환원당 함량은 가을무 깍두기의 환원당 함량이 가장 높았다. 비휘발성 유기산의 함량은 숙성됨에 따라 lactic acid는 현저히 증가되었고 succinic acid와 fumaric acid는 발효 중반기까지는 증가되다가 그 이후 다시 감소되었으며 malic acid는 숙성이 진행됨에 따라 계속 감소되는 경향을 나타내었다. SDE추출물을 GC/MS로 분석하여 밝혀진 isothiocyanate들은 4-methylthiobutyl, 5-methylthio-pentyl, 4-methylsulfinyl-3-butenyl isothiocyanate 등이었다. 관능검사 결과, 소형무로 담근 깍두기의 전체적인 수용도 점수는 대형무 깍두기보다 높은 점수를 나타내었다(p<0.05). 대형무 깍두기는 향미 특성치들이 계절별로 차이가 있었다. 소형무와 대형무 품종 간에 유의적 차이를 나타내는 깍두기의 특성치들은 lactic acid 함량, 매운맛, 단맛이었다. 계절별로 소형무 품종 간에 또한 소형무 품종별로 계절 간에 환원당 함량과 단맛은 상호 영향이 존재하였다. 품종 및 계절별로 전체적인 수용도 점수가 높은 품종은 동자무이었으며 가을 동자무 깍두기의 전체적인 수용도와 양의 상관관계를 나타내는 특성치는 무김치 냄새와 신냄새이었고 산도, lactic acid 함량, 단맛 및 매운맛과는 음의 상관을 나타내었다. 전체적인 수용도 점수에 영향을 주는 향미 특성치들을 다중 회귀분석한 결과, 봄 동자무 깍두기는 overall acceptability =-0.ll15 + 1.2519 savory taste + 1.5159 malic acid -0.0054 total isothiocyanates + ${\varepsilon}$의 식으로 표시할 수 있었다.

• 한국식품영양과학회지
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• 제33권4호
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• pp.730-735
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• 2004

Cook-chill 및 sous vide 콩나물무침과 콩나물국을 단체급식소에 적용시키기 위해 3$^{\circ}C$에서 1일, 3일, 5일간 냉장 저장시킨 후 비타민의 보존율을 분석하였고 소비자 검사를 통해 기호도를 조사하였으며 이에 대한 결과는 다음과 같다. 3$^{\circ}C$에서 저장한 cook-chill 콩나물무침의 thiamin 함량은 1일 저장 후 0.027 mg%,3일 저장 후에는 0.033 mg% 5일 저장 후에는 0.029 mg%이었고 riboflavin 함량은 1일 저장 후 0.060 mg%, 3일 저장 후에는 0.063 mg%, 5일 저장 후에는 0.061 mg%를 나타냈다. Ascorbic acid 함량은 1일 저장 후 4.18 mg%, 3일 저장 후 4.45 mg%, 5일 저장 후 4.42 mg%이었다. 3$^{\circ}C$에서 저장한 cook-chill 콩나물국의 thiamin 함량은 1일 저장 후 0.027 mg%, 3일 저장 후에는 0.035 mg%, 5일 저장 후에는 0.022 mg%이었고 riboflavin 함량은 1일 저장 후 0.027 mg%, 3일 저잘 후에는 0.035 mg%, 5일 저장 후에는 0.025 mg%를 나타냈다. Ascorbic acid 함량은 1일 저장 후 1.32 mg%, 3일 저장 후 1.63 mg%, 5일 저장 후 1.01 mg%이었다. 소비자 검사에서, 콩나물무침은 급식소에서 즉석에서 만든 콩나물무침의 소비자 기호도는 총 평균 3.73점이고 cook-chill콩나물무침의 기호도는 총 평균 3.67점이었다. 콩나물국은 급식소에서 즉석에서 만든 콩나물국의 소비자 기호도는 372점이고 cook-chill콩나물국은 3.54점이었으나 유의적인 차이는 나타나지 않았다. 그러나 cook-chill 콩나물국이 전통적인 콩나물국보다 색(p＜0.05)과 전체적인 수응도 (p＜0.01)에서 유의적으로 낮은 기호도를 보였다.

• Asian-Australasian Journal of Animal Sciences
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• 제27권3호
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• pp.398-405
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• 2014

This study was conducted to compare growth performance, carcass characteristics and meat quality of 4 breeds of local chicken. A total of 480 1-d-old chicks were distributed to 16 pens, with 4 treatments of breed, 4 replicates and 30 chicks per pen. Three Korean local breeds of white-mini broiler, Hanhyup-3-ho, and Woorimatdag, and a breed of silky fowl were raised under identical rearing and feeding conditions for 31-d, 37-d, 36-d, and 59-d, respectively. The BW and feed consumption on a pen basis were weekly measured for all pens, and ADFI, ADG and gain:feed were calculated for each pen. The ADFI and ADG of 3 breeds of Korean local chicken were greater than those of silky fowl (p<0.05). Within the Korean local breeds, ADFI of white-mini broiler was the highest (p<0.05), and ADG of Hanhyup-3-ho and white-mini broiler was the highest (p<0.05). Gain:feed of silky fowl was less than that of the 3 breeds of Korean local chicken. The carcass and breast yield of white-mini broiler were the greater than those of other breeds (p<0.05). The breast meat color (CIE $L^*$, $a^*$, and $b^*$) of 3 breeds of Korean local chicken were higher than that of silky fowl (p<0.05). The breast meat of Hanhyup-3-ho had greater cooking loss (p<0.05), whereas water holding capacity and pH were less than those of other breeds (p<0.05). The color score of 3 breeds of Korean local chicken was higher than that of silky fowl (p<0.05). Woorimatdag had a higher score on tenderness (p<0.05), whereas flavor score was less than that of other breeds (p<0.05). In conclusion, 4 local breeds of chicken have some unique features and seem to have more advantages, and this information can help consumers who prefer healthy and premium chicken meat.