• 한국식품영양과학회지
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• 제27권3호
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• pp.477-481
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• 1998

Sea mustard paste was prepared by treating wet and dried sea mustard with 0.1M Na2CO3, which mainly aimed to extract alginate from the cell wall of sea mustard. The pastes were added to beef, chicken and pork to manufacture the meat patties. The effects of adding the paste were investigated in terms of sensory properties, texture(hardness)and weight changes after cooking. The sensory attributes such as taste, color, texture and juiciness were generally enhanced by adding the paste. The hardness of cooked patties was significantly decreased, so the paste provided softer texture. The addition of paste also resulted in decreasing the weight loss of meat patties after cooking.

• 한국식품영양학회지
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• 제24권2호
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• pp.210-216
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• 2011

We investigated the quality characteristics of cookies made with Chungkukjang powder. Chungkukjang is a well-known nutritional supplement. Cookie samples were made by adding differrent quantities of Chungkukjang powder(0%, 4%, 8% and 12%). We examined the resulting, moisture, pH, color, spread factor, hardness and sensory evaluation of the cookies. While the moisture and, a and b value of the cookies significantly increased when more Chungkukjang powder was added (p<0.01), the pH, L value, spread factor and hardness of the cookies significantly decreased(p<0.01). Cookies containing 0% and 4% Chungkukjang powder had similar sensory evaluation score in terms of color, taste and flavor cookies made with 4% Chungkukjang powder had the highest texture and overall consumer acceptability scores.

• 동아시아식생활학회지
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• 제24권5호
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• pp.646-653
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• 2014

The purpose of this study was to optimum the desirable mixture ratio of aronia powder to rice flour for preparation of sulgidduk. The moisture of samples ranged from 39.93% to 42.80%. The pH of samples decreased with increasing amounts of aronia powder. L- and b-values decreased, while a-value increased, with increasing amounts of added aronia powder. As the level of aronia powder increased, hardness of samples decreased while their springiness and chewiness increased. As aronia powder content increased, 1,1-diphenyl-2picriylhydrazyl (DPPH) radical scavenging also significantly increased. Scanning electron microscopy (SEM; ${\times}30$) showed that air cell size on the sulgidduk surface increased with amount of aronia. Consequently, the addition of 3% aronia powder to rice flour was determined to be best formula for aronia sulgidduk in terms of sensory qualities such as appearance, flavor, texture, taste and overall acceptability.

• 한국식생활문화학회지
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• 제34권1호
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• pp.61-67
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• 2019

This study examined the quality characteristics of dumpling shells prepared with 0, 2, 4, 6, and 8% mulberry leaf powder. According to the amylograph data, the composite of mulberry leaf powder-wheat flour samples reduced the gelatinization temperatures, viscosities at $95^{\circ}C$, and maximum viscosity with increasing mulberry leaf powder content. The lightness (L) and redness (a) values decreased with increasing mulberry leaf powder content, whereas the yellowness (b) value increased. In addition, the weight, volume, and turbidity increased after cooking. In terms of the textural characteristics, addition of mulberry leaf powder increased the hardness, springiness, cohesiveness, chewiness, and adhesiveness. The DPPH free radical scavenging activity of the dumpling shells increased significantly (p<0.05) with increasing levels of mulberry leaf powder. The taste, chewiness and texture of the dumpling shells prepared with added 4% mulberry leaf powder were preferred. The sensory evaluation showed that the overall preference of the dumpling shell with the addition of 4% mulberry leaf powder was more effective than the control.

• 한국조리학회지
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• 제21권4호
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• pp.1-15
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• 2015

본 연구는 초석잠의 식품 소재로서의 이용을 확대하기 위한 기초자료를 제공하고자 초석잠 분말의 첨가량을 0, 3, 6, 9, 12%로 달리하여 식빵을 제조하고, 그 품질 특성과 관능검사를 실시하였다. 식빵 반죽의 발효율은 초석잠 분말의 첨가량이 증가할수록 낮아졌다. 식빵의 수분 함량과 굽기 손실률은 초석잠 분말의 첨가량이 증가할수록 유의적으로 감소하였다(각각 p<0.001과 p<0.001). 초석잠 분말의 첨가량이 증가할수록 식빵의 부피는 감소한 반면(p<0.001), 무게는 증가하였고(p<0.001), 비용적은 감소하였다(p<0.001). 식빵 내부(crumb)의 색도는 초석잠 분말 첨가에 따라서 유의적인 차이를 보였으며(p<0.001), 초석잠 분말 첨가량이 증가할수록 명도(L)는 감소하였으나, 적색도(a)와 황색도(b)는 유의적으로 증가하였다. 식빵의 TPA 측정 결과, 초석잠 분말 첨가량이 많아질수록 경도(hardness), 씹힘성(chewiness)(p<0.05)과 검성(gumminess)(p<0.001), 부착성(adhesiveness)(p<0.001)은 증가하였으나, 탄력성(springiness)과 응집성(cohesiveness)(p<0.01)은 감소하였다. 식빵의 특성차이 검사 결과, 초석잠 분말의 첨가량이 증가할수록 식빵의 속질 색(crumb color)은 진해졌으며(p<0.001), 기공의 크기(grain size)는 감소하였으나(p<0.05), 기공의 균일성(grain uniformity), 발효향(yeast flavor), 아린향(acridity flavor)(p<0.001), 담백한 맛(plainer taste)(p<0.05), 단맛(sweet taste)(p<0.01), 아린맛(acridity taste)(p<0.001), 견고성(firmness), 탄력성(springiness), 촉촉함(moistness), 부드러움(softness), 씹힘성(chewiness)은 강하게 평가되었다. 전반적인 기호도(overall acceptability)는 초석잠 분말 첨가량이 많아질수록 유의적으로 증가하여 9% 첨가군이 가장 높게 평가되었다(p<0.001). 이상의 결과로 부터 초석잠 분말을 이용한 기능성 식빵 제조시 초석잠 분말을 9% 첨가하는 것이 소비자의 기호도를 충족시킬 수 있을 것으로 생각된다.

• 동아시아식생활학회지
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• 제16권6호
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• pp.684-689
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• 2006

This study evaluated the physicochemical characteristics of domestic and imported packaged Kimchi in Korea. Six types of domestic and imported Kimchi were collected from a supermarket. According to the results, the salt concentrations of the domestic and imported Kimchi were 3.83% and 3.06%, respectively. The total lactic acid content was 0.33% for domestic Kimchi, and 0.29% for imported Kimchi. The total vitamin C content was found to be higher in the domestic Kimchi (30.9mg%) than in the imported Kimchi(25.9mg%). These results suggest that both are within the standards of the Korea Food and Drug Administration in terms of food containment: 1% or lower for acid, and $1{\sim}4%$ for salt. For the number of aerobic bacteria present in each of them, both contain approximately $10^4{\sim}10^5\;CFU/g$g, which is safely under the FDA standard of $10^7{\sim}10^8 \;CFU/g$. Therefore, neither is harmful at all in terms of the number of bacteria but continuous monitoring will be necessary. from texture analysis, the hardness and chewiness of the domestic Kimchi was better than the imported Kimchi. The hardness and chewiness of the domestic Kimchi indicated a better production process than imported Kimchi. There may not be a particular difference in terms of the sensory evaluation apart from its crispy taste. However, this also needs to be continuously monitored while the Kimchi is undergoing the fermentation process.

• 동아시아식생활학회지
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• 제20권5호
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• pp.727-734
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• 2010

As the blueberry content in batter increased, the pH of batter decreased According to the measured results about specific gravity of muffin batter, there was no significant difference among each batter including 0% 10% and 15% blueberry, while each 15% 20% and 30% dough showed significant difference (p<0.001). According to the results about general quality characteristics of muffins such as volume, weight and specific gravity, as the content of blueberry juice increased, the volume decreased. In terms of measuring specific volume, it decreased as the added amount increased According to measuring the chromaticity of muffins, as the blueberry content increased in the muffins, brightness and yellowness decreased while redness increased In terms of the measurement of texture, the hardness showed significant difference among all sample muffins (p<0.001). Significant difference was not shown in the springiness (p<0.05). As the amount of blueberry juice increased, the chewiness of the muffins was grown. The result showed a significant difference between samples in the adhesiveness (p<0.001). As the amount of blueberry juice increased, the adhesiveness of muffins also increased In the organoleptic test, a significant difference was shown in the color among all sample (p<0.001). The blueberry juice content of 20% showed highest figures with $7.12{\pm}0.67$. In terms of flavor, the content of 20% also showed highest figures among all samples with $7.16{\pm}0.62$ (p<0.001). Concerning the taste all samples showed a significant difference while 20% content did the highest figure. In the overall acceptability the content of 10% showed the lowest figure while 20% displayed the highest figure with 7.16. According to the quality characteristics of blueberry muffins, the best blueberry juice content would be 20% content group.

• 한국식품영양학회지
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• 제30권5호
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• pp.908-915
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• 2017

This study was performed to determine the effects of different processing methods (AD: drying at $50^{\circ}C$ for 15 h; ADR: roasting after drying; SAD: drying after steaming; SADR: roasting after steaming and drying) on the quality characteristics, total phenolic content, anthocyanin content, DPPH radical scavenging activity, and reducing powder of red radish (Bordeaux and watermelon radish) tea. The pH of red radish tea was the highest with SAD. In terms of the total sugar content, Bordeaux radish tea showed the highest level with AD, ADR, and SAD, and watermelon radish tea showed the highest level with SADR. The a value of Bordeaux radish tea was higher with AD and ADR. The b value of Bordeaux radish tea was increased with steaming and roasting treatment. In terms of measuring the colors of watermelon radish tea, the L value was decreased while the b value was increased with roasting treatment. The total phenolic content, DPPH radical scavenging activity, and reducing powder with ADR and SADR were higher than those in samples prepared by different processing methods. AD and SAD resulted in higher anthocyanin contents than ADR and SADR. In terms of sensory evaluation, the appearance and color were rated higher with AD and SAD, whereas the flavor and taste were ranked higher with ADR and SADR than in the other samples. The results suggest that red radish (Bordeaux and watermelon radish) tea prepared by ADR and SADR processing methods can be utilized as health functional tea material with antioxidant activity.

• 한국식품영양학회지
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• 제30권4호
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• pp.653-664
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• 2017

This study added stevia leaf powder at ratios of 0.5, 1.0, 1.5, and 2.0 percent to Omija-pyun (Schisandra chinensis Jelly) as a natural low-calorie sweetener instead of sugar which is added to Omija-pyun in considerable amounts to evaluate quality characteristics and antioxidant activities compared to the control group with the addition of sugar. Moisture content of Omija-pyun expanded by increasing the measurement of stevia leaf powder (p<0.001), pH (p<0.01) and sugar content (p<0.001) decreased. L-values and b-values revealed a tendency to increase by adding more stevia leaf powder, but a-value revealed a tendency to decrease (p<0.001). Hardness (p<0.001) and chewiness (p<0.05) decreased by adding more stevia leaf powder. Based on the consumer preference evaluation, Omija-pyun with the addition of 0.5 percent stevia leaf powder was the most preferable in terms of color and flavor (p<0.001). The control group and Omija-pyun with the addition of 0.5 percent stevia leaf powder was the most preferable in terms of taste and texture (p<0.001). There were significant differences in the organoleptic properties except hardness between the samples by quantitative descriptive analysis. The control group revealed the highest preference in terms of redness and transparency, and redness and transparency tended to decrease by adding more stevia leaf powder (p<0.001). Organoleptic properties on bitterness and sourness were enhanced by adding more stevia leaf powder in the principal component analysis (PCA). Regarding antioxidant properties, total phenol compounds and flavonoid contents of Omija-pyun increased by adding more stevia leaf powder, and DPPH radical scavenging capacity also increased (p<0.001). Based on results, it is preferable to serve Omija-pyun with the addition of 1.0 percent stevia leaf powder instead of sugar within the context of quality and antioxidant activity.

• 동아시아식생활학회지
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• 제13권6호
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• pp.601-607
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• 2003

This study was attempted to investigate the physicochemical changes during soybean-leaf water kimchis fermentation by adding wheat flour in cooking water. Soybean-leaf water kimchis with five different levels of wheat flour in cooking water(0%;A, 5%;B 10%;c, 15%;D, 20%;E) were tested for rhological parameters, fine structural changes, sensory evaluations and chemical analysis. The composition of the soybean-leaf was moisture (80.9%), protein(6.8%), fat(0.6%), ash(2.1%) and alkalinity (+14.9). The amount of reducing sugars of sample A and other samples were 0.75% and 1.08∼1.4% in the initial fermentation stage, but decreased to 0.3 and 0.43∼0.50% in the later fermentation stage, respectively. The pH of sample A decreased from 5.17 to 4.72 during the initial fermentation. On sample B, C, D and E, pH's decreased rapidly during the initial fermentation, but they did not change much in the later fermentation stage. The pectin contents of all samples decreased during 2nd and 4th day of fermentation, then the change was slow. The amount of hemicellulose. cellulose and lignin in terms of the DNF and ADF were varied from 4 to 33%, but the contents of them did not greatly changed during the fermentation. The sensory evaluation showed that both B and C samples had the good score in sweety taste, roasted nutty taste, and the ease of swallowing measured as chewiness. From these results, the optimum soybean-leaf water kimchis can be prepared when 200g soybean-leaf, 1000$m\ell$ water, 15g garlic, 3% red pepper powder and 5 ∼0% wheat flour were fermented at 20$^{\circ}C$ for 2 days.