• 한국식품영양과학회지
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• 제32권7호
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• pp.1021-1025
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• 2003

녹차를 이용한 기능성 면류를 제조하기 위해서 가루녹차를 밀가루에 1, 2, 3, 5, 7.5 및 10%첨가하여 제조한 생면의 품질 특성 변화를 조사하였다. 가루녹차의 첨가 농도가 증가함에 따라 아밀로그래프상의 호화개시 온도는 증가하였고, 최고 점도와 최종 점도는 감소하였다. 조리면의 성질도 가루녹차 첨가량이 증가함에 따라 무게와 부피는 상대적으로 감소함을 보였고, 탁도는 증가하였다. 표면색의 측정 결과 L값과 a값은 감소하였고, b값은 증가하였다. 조리면에 대한 TPA(texture profile analysis) 결과 가루녹차 2% 첨가까지는 견고성, 부착성, 탄력성, 씹힘성이 증가하였으나 3% 첨가부터 감소하였으며, 응집성은 첨가량이 증가함에 따라 감소하였다. 조리면의 관능검사 결과 가루녹차 1% 첨가시에 가장 좋은 품질로 평가되었다.

• 한국수산과학회지
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• 제36권2호
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• pp.69-73
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• 2003

To improve the sensory quality of sliced raw fish, the effect of cold brine temperature on the texture properties was investigated. Fishes were immersed in cold brine by various condition and killed instantly by spiking at the head. The onset of rigor-mortis was accelerated by decrease of immersion temperature. Also, the time reaching full rigor was shortened remarkably too. However, the rigor index of samples immersed in the cold brine decreased more than that of samples killed instantly. Rigor index was the highest in samples killed instantly, followed by $0^{\circ}C,\;-5^{\circ}C,\;-10^{\circ}C,\;-12.5^{\circ}C,\;-15^{\circ}C\;and\;-20^{\circ}C$ in that order. The breaking strength of samples immersed in the cold brine increased slowly but did not increase through all the conditions in the samples. Breaking strength of all samples immersed in the cold brine decreased significantly after reaching the maximum values (p<0.05). The lactate content of muscle was increased by the decreased brine temperature, however ATP content decreased. Minimum lactate and maximum ATP content in fish muscle showed at $-12.5^{\circ}C$. Those results demonstrate that optimal temperature for improvement of sliced raw fish quality by cold brine was $-12.5^{\circ}C.$

• 한국방사선학회논문지
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• 제10권8호
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• pp.645-652
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• 2016

본 연구는 통계적 속성에 기반한 질감특징값 분석을 바탕으로 뇌 전산화단층촬영 영상에서 정상과 뇌경색의 컴퓨터보조진단의 적용 가능성을 알아보고자 하였다. 실험은 질감특징값을 나타내는 6개의 파라미터를 이용한 질환인식률 평가와 ROC curve를 분석하였다. 그 결과 평균밝기 88%, 대조도 92%, 평탄도 94%, 균일도 88%, 엔트로피 84%의 높은 질환인식률을 나타내었다. 하지만 왜곡도의 경우 58%로 다소 낮은 질환 인식률을 나타내었다. ROC curve를 이용한 분석에서 각 파라미터의 곡선아래면적이 0.886(p=0.0001)이상을 나타내어 질환인식에 의미가 있는 결과로 나타났다. 또한 각 파라미터의 cut-off값 결정으로 컴퓨터보조진단을 통한 질환예측이 가능할 것으로 판단된다.

• 한국식품영양학회지
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• 제33권2호
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• pp.131-141
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• 2020

This purpose of this study was to investigate the quality characteristics of jellies added with lemon myrtle extract. Lemon myrtle leaves were extracted for 0, 3, 5, 7, 9 minutes, respectively, in 90℃ water and used for jelly preparation. The moisture content of control showed the lowest value and the content increased significantly as the extraction time of lemon myrtle increased. The pH of L0 was significantly high and increased significantly with the increase of extraction duration time. The lightness value was the lowest in the L3. The redness showed the lowest value in the L9. The yellowness showed the lowest value in the L0. In texture properties the hardness of L9 showed the highest value and the lemon myrtle extraction duration increased significantly. The cohesiveness was highest in the L0 and lowest in the L5. Gumminess and chewiness increased significantly with increasing extraction duration. Total polyphenol content was the highest in the L5 and the jellies with lemon myrtle extracts were significantly higher than the L0. DPPH radical scavenging activities increased significantly with increasing extraction duration. The ABTS radical scavenging activity of the L0 was the lowest. In the sensory evaluation overall preference, color, sweetness, texture, and lemon myrtle flavor did not show any significant differences among the samples.

• 한국식품조리과학회지
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• 제26권2호
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• pp.146-154
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• 2010

The objective of this study was to improve the Dasik through the addition of sugar alcohol(xylitol, mannitol, sorbitol, erythritol) and agar during the production of Dasik in order to complement the texture of Dasik. Dasik sample were prepared, and the sensory quality and physical characteristics of the samples were compared and the antibacterial characteristics of green tea Dasik containing sugar alcohol against oral bacteria were also examined. The results are summarized as follows. The moisture content of green tea containing sugar alcohol to improve the physical properties was over 30%. The water activity of the agar-added Dasik was higher than that of the control group. The pH was significantly higher for both the experimental group and the control group. The color L value was the brightest at 59.21 for FAOG, while the a value was the lowest for SG, and the b value was the highest for MG. In the texture analysis, the hardness of the control group was the highest at $5181.04\;g/cm^2$ for SSG. The cohesiveness was the highest at 0.16% for SG and the chewiness was the highest at 182.12 g for MG, while the lowest cohesiveness was determined to be 43.73 g for EG. As for the adhesiveness, the agar, sugar alcohol-added groups were overall negative (-) while SG was found to have the lowest negative value at -39.25 g. In the sensory evaluation, the control XYG group scored the highest in moistness, adhesiveness, chewiness, and overall acceptance. In addition, all groups except SSG exhibited antibacterial characteristics against P. bivia. In conclusion, Dasik with added agar was shown to complement the texture of Dasik due to the added sugar alcohol.

• 한국식품조리과학회지
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• 제17권4호
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• pp.367-372
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• 2001

본 연구에서는 옐로우 레이어 케이크 제조시 쇼트닝 대신 탄수화물계 지방 대체물인 폴리덱스트로스가 사용될 수 있는지 그 가능성을 조사하고 폴리덱스트로스를 여러 가지 비율로 대체하여 제조한 저열량 레이어 케이크의 특성을 평가하였다. 케이크 반죽의 비중과 점도는 지방 대체율이 증가할수록 비중은 증가하지만 점도는 낮아졌다. 주사전자 현미경 측정 결과 지방 대체물이 증가함에 따라 air cell과 함께 지방구의 수와 크기는 감소하였고 점도는 높을수록 치밀한 구조를 보였다. 물성은 대체율이 높을수록 hardness, gumminess, cohessiveness 및 chewiness는 감소하였고 springiness는 증가하였으며 resilience는 차이를 나타내지 않았다 관능적 평가에서 폴리덱스트로스 첨가 25%에서 대조군과 비슷한 선호도를 나타내었고 지방 대체율이 크게 증가할수록 관능적으로는 낮게 평가되었다. 본 실험 결과 지방 대체물인 폴리덱스트로스는 저열량 레이어 케이크 제조시 쇼트닝 대신 25% 첨가시 대조군과 유사한 특성을 나타내어 지방 대체 소재로 사용될 수 있을 것으로 생각되었다.

• 대한영양사협회학술지
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• 제18권3호
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• pp.213-221
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• 2012

The principal objective of this study was to evaluate the quality characteristics of mungbeanmook prepared with five different levels (0, 5, 10, 15, and 20%) of Gugija (Lycii fructus) infusion. We analyzed Hunter's color values, pH, texture characteristics, and perfomed sensory evaluation of mungbeanmook prepared with Gugija infusion. The pH levels of mungbeanmook ranged between 5.45 and 6.12 and did not show significant differences. As Gugija infusion concentration increased, the color lightness "L" value decreased, whereas redness color "a" value and yellowness color "b" values increased (P<0.05). With regard to mechanical texture properties of the mungbeanmook samples, as the Gugija infusion concentration increased, the scores of hardness, chewiness, and gumminess all significantly decreased (P<0.05) whereas there were no significant differences in springiness or cohesiveness. The results of the sensory evaluation showed that the score of the LFLT10 sample (10% Gugija infusion) was significantly higher than those of others in terms of taste, color, flavor, texture, and overall quality (P<0.05). Taken together, the recommended optimum level of Gugija infusion in mungbeanmook is 10% for sensory evaluation. Gugija infusion can be a useful approach to improving quality of mungbeenmook as a functional food.

• 한국식품영양학회지
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• 제20권1호
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• pp.40-46
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• 2007

본 연구는 건강지향적인 식품 소재로서 기능성과 효능을 지닌 동충하초를 이용하여 먹기 편한 젤리를 제조하기 위해 동충하초 분말을 각각 0%, 0.5%, 1%, 1.5%, 2% 첨가하여 만든 동충하초 젤리의 일반성분, 무기질 함량, 색도, 물성 및 관능평가를 실시한 결과는 다음과 같다. 동충하초 젤리의 일반성분 함량에서 수분 함량과 조단백질 함량은 동충하초 분말을 첨가한 군에서 높게 나타났으며(p<0.05), 반면에 조지방 함량은 대조군이 가장 높고 동충하초 분말 첨가군이 낮게 나타났다. 무기질 함량은 동충하초 분말을 첨가한 군이 대조군보다 칼슘, 마그네슘 및 칼륨 함량이 높았다(p<0.05). 색도 검사에서 L값과 a값은 대조군에 비해 동충하초 분말을 첨가한 군에서 낮아지는 경향이었으며 b값은 대조군이 가장 낮게 나타났다. 조직감은 대조군에 비해 동충하초 분말을 첨가한 군에서의 Hardness, Gumminess 및 Chewiness가 낮아지는 경향이었다. 관능검사에서는 동충하초 분말 1% 첨가군에서의 색, 맛, 질감 및 전체적인 기호가 높게 평가되었다. 이상의 연구결과를 통해 건강지향적인 기능성 식품 소재로서 기호성과 이용성을 증대시킬 수 있는 동충하초 젤리의 동충하초 분말 첨가량은 1% 첨가군이었으며 겔화제와 같은 첨가물에 따른 동충하초 젤리의 관능평가에 대한 연구가 지속적으로 이루어져야 된다고 사료된다.

• 동아시아식생활학회지
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• 제14권5호
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• pp.449-456
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• 2004

Different types of coagulant and characteristics of its concentration added in the process of making milk curd were compared in this study. The pH of whey decreased when the amount of coagulant increased. The turbidity of whey was decreased when 5% of acetic acid and lemon juice were put into as coagulants. The texture of milk curd made with cow's milk and skim milk was measured the highest when acetic acid and lemon juice were added at 3, 5% of their concentration. The fracturability of milk curd made only with cow's milk decreased as the concentration of each coagulant increased. The cohesiveness was decreased as concentration of coagulant increased. The springiness was slightly changed depending on its coagulant but didn't show much of difference. The gummminess of milk curd made with cow's milk was increased when 3, 5% of coagulant was added. The result of sensory evaluation of milk curd showed that preference of milk curd wasn't depending on types of milk nor its coagulant. Also, flavor preference showed better when lemon juice was added. Preference in texture of milk curd was the highest made with cow's milk and skim milk. Preference in taste was high when 10% of lemon juice was added to skim milk and preference in its appearance showed higher when the alum was added as a coagulant to both cow's milk and skim milk than other coagulants.

• 동아시아식생활학회지
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• 제14권4호
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• pp.370-378
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• 2004

The purpose of this study was to investigate the effect of added nutriprotein and rice powder as a plasticizer on physicohemical property, texture property of Backsulgi. In the physicochemical property, the content of proximate composition of nutriprotein was measured as 6.1% of moisture, 3.6% of carbohydrate, 84.3% of crude protein, 0.6% of crude lipid, 5.4% of ash. The raw material of rice powder was measured as 9.6% of moisture, 83.7% of carbohydrate, 6.0% of crude protein, 0.4% of crude lipid, 0.3% of ash. Swelling power and pore ratio of the control were 78.53% and 72.42%, and tended to increase as the amounts of nutriprotein and plastic rice powder increased. Aging by Avrami eguation retarded in Backsulgi added 10% plastic rice powder than rice powder Backsulgi. All the samples added 2, 4, 6, and 8% nutriprotein at the temperatures of 20 were more effective than others on aging. In texture properties, cohesiveness and springiness were not significantly changed by adding nutriprotein and not significantly changed during the storage period in all samples. Hardness and gumminess decreased by adding 2∼8% nutriprotein and increased during the storage period in all samples. Springiness and gumminess decreased by adding 40% plastic rice powder and increased during the storage period in all sample. Cohesiveness and hardness decreased by the increase of plastic rice powder. The texture characteristics by rheometer showed that Backsulgi with nutriprotein and plastic rice powder exhibited lower in hardness than the control, indicating that nutriprotein and plastic rice powder were effective in retarding retrogradation, which is better when storage time became longer.