• 한국식품영양학회지
• /
• 제17권1호
• /
• pp.1-7
• /
• 2004

Chlorella 추출물을 첨가한 요구르트를 개발하기 위하여 chlorella 추출물 분말을 수준별(0.25%, 0.5%, 1.0%, 2.0%)로 첨가하여 starter로 사용된 Str. thermophilus와 Lac. casei 혼합 균주의 생육과 산 생성에 미치는 영향 및 요구르트의 품질 특성을 조사하였다. Chlorella 추출물 분말 0.25% 첨가에 의해 유산균의 산 생성은 증가하였으며 생균 수 또한 같은 경향이었다. 발효 12시간 후 chlorella 추출물 분말 0.25% 첨가구의 pH는 4.33, 생균 수는 1.46${\times}$$10^{8}$CFU/mL로 최대 균수를 나타내었다. 색도 측정 결과 chlorella 추출물 분말 첨가 농도가 증가함에 따라 명도(L값)는 대조구에 비해 감소하였고, 황색도(b값)는 크게 증가하였다. Texture 특성은 chlorella 추출물 분말을 0.25% 첨가한 요구르트가 대조구에 비하여 hardness와 gumminess에서 가장 높은 값을 나타내었다. 관능검사 결과 0.5% 이상의 chlorella 추출물 분말 첨가 요구르트에서는 모든 항목에서 대체로 낮은 평가를 받았으나 0.25% chlorella 추출물 분말 첨가 요구르트는 색, chlorella 향, 단맛, chlorella 맛, 조직감, 후미, 전체적인 기호도에서 가장 높은 평가를 받았으며 다른 항목에 있어서도 비교적 우수한 평가를 받아 관능적으로 가장 적당한 첨가량을 나타내었다. 이상과 같이 chlorella 추출물을 0.25% 첨가하여 요구르트를 제조할 때 유산균의 생육 및 산 생성을 촉진시켰으며, 요구르트의 texture와 관능적인 면에서도 좋은 결과를 보였다. 따라서 여러 가지 유용한 생리 활성 효과를 가진 chlorella 추출물은 새로운 기능성을 가지는 요구르트의 개발에 있어 좋은 천연물 소재로서의 가능성을 가지며 신제품 개발에 기여할 수 있을 것으로 사료되었다.

• 한국의류학회지
• /
• 제27권11호
• /
• pp.1291-1299
• /
• 2003

In order to design the better brassiere in terms of appearance and functions, various parameters of the materials should be considered; in this study, fatigue properties and subjective sensation of wing materials and its relation to the preference for a brassiere was investigated. After the survey of commercially available products, five elastic fabrics such as cotton, Modal, polyester, nylon, and Tactel, all of which contain 10% polyurethane, were chosen as specimens. Fabric growth were determined to evaluate fatigue properties. Qmax was determined to evaluate the warm-cool feeling. For the sensory test, semantic differential scale which contains 15 adjectives were developed. Fatigue properties were very similar at the 20% elongation irrespective of the duration of tension, but at 40% and 100% elongation, man made fabric showed less growth than cellulose fabrics. The factor analysis showed four factors such as sense of warmth, smoothness, weight and elasticity. Preference of the specimens was ranked in the order of Tactel>Modal>cotton>nylon>polyester.

• 한국식품영양과학회지
• /
• 제23권2호
• /
• pp.298-302
• /
• 1994

This study is carried out in order to investigate to the physical property of Castella. The material is 19 kinds of Castella on the market in Kyushu area.As an result of the sensory evaluation for Castella, it could be classified into 3 types ; a) high grade, C) low grade, and B) midium grade.The results are summarized as follow. The water content of 3 type Castella was most 26-30% but Korea's was more lower . ΔE of A an dB type Castella was similiar , but A and C types was very different. in the Creep test, 3 types are all the 6-element Voigt model, consisting of Hookean body , Newtonian body and two sets of Voigt body. Eo of A type is 13-36% higher than other types. The parts of retardation strain of A type are 21-41% lower than B type, 8-13% higher than C type, respectively.

• 한국조리학회지
• /
• 제23권3호
• /
• pp.147-157
• /
• 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.

• 한국축산식품학회지
• /
• 제36권1호
• /
• pp.68-76
• /
• 2016

This study was conducted to investigate the meat quality and sensory properties of 12 major cuts from 10 Hanwoo bulls (25-32 mon of age) after they were aged at 2℃ for 0, 7, 14, and 21 d. Protein content (%) was between 19.17 and 22.50%. Intramuscular fat content ranged from 2.79 to 8.39%. The collagen content of the chuck roll, chuck tender, and short plate muscles was higher (1.97-2.04%) than that of the striploin muscles (1.48%) (p<0.05). CIE lightness (L*) values increased with an increase in aging days for tenderloin, loin, chuck roll, oyster blade, short plate, top sirloin, and eye of round muscles (p<0.05). Most muscles, except the short plate, showed no significant changes in redness CIE (a*) and yellowness (b*) color values during aging. The tenderloin, loin, and striploin showed significantly higher water holding capacity (58.60-62.06%) than that of chuck roll and short plate (53.86-57.07%) muscles (p<0.05). The Warner-Bratzler shear force values of most muscles decreased significantly as the aging period increased (p<0.05), exception the tenderloin. The chuck tender muscles showed the highest cooking loss, whereas tenderloin muscle showed the lowest (p<0.05). The tenderloin muscle had the longest sarcomere length (SL) (3.67-3.86 μm) and the bottom round muscle had the shortest SL (2.21-2.35 μm) (p<0.05). In the sensory evaluation, tenderness and overall-likeness scores of most muscles increased with increase in aging days. The tenderloin and oyster blade showed relatively higher tenderness and overall-likeness values than did the other muscles during the aging period. No significant differences were noted in juiciness and flavor-likeness scores among muscles and aging days.

• 동아시아식생활학회지
• /
• 제27권5호
• /
• pp.491-499
• /
• 2017

본 연구에서 시판 생막걸리의 이화학 성분과 관능적 특성을 살펴보고, 특히 휘발성 성분과 향미 묘사용어와의 상관관계를 분석하였다. 이화학 성분은 우리술 품평회에서 입상한 생막걸리의 알코올, 환원당 함량이 유의적으로 높게 나타났고, 색도가 낮게 나타났다(p<0.05). 또한 휘발성 성분에서 입상한 생막걸리의 ethyl myristate의 함량이 2.4배 낮게 나타났다(p<0.05). 전체 15종 생막걸리의 묘사용어는 총 24개(외관2개, 향 10개, 맛 8개, 질감 4개)의 용어가 개발되었다. 입상주의 관능적 특성은 단내, 배향, 요구르트향, 알코올향, 알코올 향미, 탄산감이 주로 발현되었으며, 구수한 향/향미, 누룩향은 적게 나타났다. 생막걸리에 함유된 휘발성 성분과 묘사 용어 중 향에 관한 항목과의 상관분석 결과, ethyl lactate가 복분자향(r=0.840), 배향(r=0.723)과 높은 양의 상관관계를 보였다(p<0.01). 본 연구에서 도출된 소비자들이 선호하는 이화학 특성과 관능적 특성(단내, 복분자향, 배향, 요구르트향 등)이 생막걸리의 품질특성에 잘 반영된다면 막걸리의 소비 활성화에 기여할 것으로 사료된다.

• 한국생활과학회지
• /
• 제23권2호
• /
• pp.317-328
• /
• 2014

In this study, differences of texture image and preference for men's suit fabrics according to mechanical properties, hand and fabric information were investigated. 55 subjects evaluated texture image and preference of 12 kinds of wool blended fabrics. For statistical analysis, t-test and pearson correlation coefficients were used. The results were as follows: Most of mechanical properties effected on texture images, and bending property and shearing property were effected on tactile preference and purchasing preference. For hand, objective hand values showed correlations with subjective texture images and preferences, but THV had almost no correlations. In sensory images according to presence of fabric information, fabrics were evaluated thinner, lighter, more pliable and smooth by cognition of wool blending ratio. For sensibility images, fabrics were evaluated more refined, intellectual, dignified and less practicable after recognize of wool blending ratio. In preferences, tactile preference was increased and purchasing preference was decreased after recognize fabric information. Therefore, significant differences of texture image and preference were observed according to presence of fabric information.

• Asian-Australasian Journal of Animal Sciences
• /
• 제29권5호
• /
• pp.702-708
• /
• 2016

Aloe vera has been used worldwide for pharmaceutical, food, and cosmetic industries due to its wide biological activities. However, quality improvement of low fat meat products and their acceptability with added Aloe vera gel (AVG) is scanty. The aim of this study was to explore the feasibility of using fresh AVG on physicochemical, textural, sensory and nutritive qualities of goat meat nuggets. The products were prepared with 0%, 2.5%, and 5% fresh AVG replacing goat meat and were analyzed for proximate composition, physicochemical and textural properties, fatty acid profile and sensory parameters. Changes in lipid oxidation and microbial growth of nuggets were also evaluated over 9 days of refrigerated storage. The results showed that AVG significantly (p<0.05) decreased the pH value and protein content of meat emulsion and nuggets. Product yield was affected at 5% level of gel. Addition of AVG in the formulation significantly affected the values of texture profile analysis. The AVG reduced the lipid oxidation and microbial growth in nuggets during storage. Sensory panelists preferred nuggets with 2.5% AVG over nuggets with 5% AVG. Therefore, AVG up to 2.5% level could be used for quality improvement in goat meat nuggets without affecting its sensorial, textural and nutritive values.

• Food Science and Biotechnology
• /
• 제17권5호
• /
• pp.996-1002
• /
• 2008

Pickled hen egg dipped in brewed apple vinegar for 7 and 14 days was prepared and changes of weight, pH, viscosity, calcium content, antioxidative effect, and sensory characteristics were determined. During a pickling, the egg weight was increased from 62.03 g at day 0 to 91.13 and 94.93 g at day 7 and 14, respectively. The pH of the egg white and yolk, initially at pH 10.24 and 6.56, was decreased, while that of the pickling solution was increased by the pickling days. Viscosity of the pickled egg white was significantly decreased with the pickling days (p<0.05). Significant antioxidative effect was found from the pickled egg mixture (egg white:yolk=1:1). Calcium content of the egg white after 7 and 14 days of the pickling was 280-300 times higher than the fresh egg white and 1.9 times higher than fresh egg yolk. Addition of plain yogurt and honey improved the sensory quality of a pickled egg and was able to mask the unpleasant sour taste. Results suggest that, in addition to the use of pickled egg by itself, egg-based foods such as mayonnaise with enforced calcium content can be developed using a pickled egg.

• 한국식품영양학회지
• /
• 제17권2호
• /
• pp.120-127
• /
• 2004

생리적 활성이 높은 클로렐라 추출물을 효율적으로 활용하기 위한 방안으로 클로렐라 추출물 분말을 0.5％, 1.0％, 1.5％, 2.0％ 수준으로 첨가하여 제조한 생국수의 품질 특성에 관하여 조사하였다. 클로렐라 추출물 분말을 첨가한 국수는 조리시의 중량, 부피, 함수율, 고형분 용출량이 대조구보다 높게 나타났다. 색도는 클로렐라 추출물 분말 첨가량이 증가할수록 L값과 a값은 감소되었고 b값은 증가하였으며 조리하였을 때 L, a, b값이 모두 감소하는 경향을 보였다. 클로렐라 추출물을 첨가한 국수의 조리 후 텍스쳐에서 경도, 응집성, 탄성, 점성, 씹힘성은 대조구에 비해 낮은 값을 나타내었다. 관능 검사 결과 클로렐라 추출물 1.5％ 첨가구에서 맛, 텍스쳐, 후미, 전체적인 기호도가 가장 좋게 평가되었고, 색깔과 향은 대조구와 유의적인 차이를 나타내지 않았다. 이상의 결과를 보면 클로렐라 추출물 분말을 1.5％첨가함으로써 품질과 관능성이 향상된 생국수 제조가 가능함을 알 수 있었다.