• 한국식생활문화학회지
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• 제29권1호
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• pp.84-90
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• 2014

This study investigated the effects of ginkgo nut powder on the antioxidant activity and quality characteristics of mung bean starch gel. Mung bean starch gels were prepared with different amounts of ginkgo nut powder (0, 1, 3, 5, and 7%). The antioxidant activity of ginkgo nut powder and mung bean starch gel was estimated through measuring DPPH free radical scavenging activity and total phenolic acid content. For analyzing quality characteristics several factors were considered: syneresis, pH, color, texture profile analysis, and sensory evaluations. In the results, syneresis in the treated group was higher than the control group. The pH, b values, total phenolic acid content, and DPPH free radical scavenging activity of mung bean starch gels also significantly increased with increasing ginkgo nut powder. In contrast, the L values and a values of mung bean starch gels significantly decreased with increasing ginkgo nut powder. In the texture profile analysis, the mung bean starch gels with 5% and 7% ginkgo nut powder showed significantly lower degrees of hardness, chewiness, and gumminess. On the other hand, cohesiveness was highest in the mung bean starch gels with 5% and 7% ginkgo nut powder. The consumer acceptability score for the mung bean starch gel prepared with 5% and 7% ginkgo nut powder ranked significantly higher than the other groups in flavor and taste. Overall, these results suggest that ginkgo nut powder is a good ingredient for increasing the consumer acceptability and functionality of mung bean starch gel.

• 한국식품과학회지
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• 제23권3호
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• pp.317-324
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• 1991

옥수수 전분을 propylene oxide와 반응시켜 하이드록시프로필화 옥수수 전분을 제조한 후 물리화학적 특성을 조사하였다. DSC, Amylograph 등을 이용하여 호화특성을 조사한 결과 치환기가 증가할수록 호화온도가 낮아져 치환도가 DS 0.068 이상에서는 호화개시온도가 $59^{\circ}C$로 감자 전분의 호화온도인 $62^{\circ}C$ 보다도 낮았으며 DS $0.120{\sim}0.147$에서는 $53^{\circ}C$까지 떨어졌다. 호화시킨 전분을 $4^{\circ}C$에 저장하면서 노화속도를 측정한 결과 DS 0.120 이상에서는 $4^{\circ}C$에서 7일간 방치하여도 거의 노화가 일어나지 않아 하이드록시프로필화에 의하여 크게 억제되었다. 또한 하이드록시프로필화 시킨 옥수수 전분은 빛 투과도 증가 시작온도가 낮아졌으며 빛 투과도는 현저히 증가되었다. 옥수수 전분을 하이드록시프로필화 시켰을때 gel 형성시간은 늦어졌으며 gel 조직이 연해지고 겔 강도도 떨어졌다.

• Archives of Plastic Surgery
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• 제50권2호
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• pp.160-165
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• 2023

Background The number of cosmetic and reconstructive surgeries that use breast implants is increasing in Korea. Recently, it has been reported that breast implant-associated anaplastic large-cell lymphoma is related to textured breast implants, and interest in classification according to the texture of breast implants is increasing. However, there is currently no clear and unified classification. In particular, the definition of "microtextured" is highly varied. In this study, we retrospectively investigated and analyzed the clinical outcomes of smooth and microtextured breast implants. Methods A retrospective chart review of all patients who underwent breast augmentation surgery with smooth and microtextured silicone gel implants between January 2016 and July 2020 was performed. We retrospectively analyzed implant manufacturer, age, body mass index (BMI), smoking status, incision location, implant size, follow-up period, complications, and reoperation rate. Results A total of 266 patients underwent breast augmentation surgery, of which 181 used smooth silicone gel implants and 85 used microtextured silicone gel implants. Age, BMI, smoking status, implant size, and follow-up period were not significantly different between the two groups. Similarly, complications and reoperation rates were not significantly different between the two groups. Conclusion It is important to provide information regarding the clinical risks and benefits of breast implants to surgeons and patients through a clear and unified classification according to the texture of the breast implant.

• 한국식품영양과학회지
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• 제41권8호
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• pp.1168-1175
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• 2012

물결합능력은 북한산이 중국산과 국내산에 비해 높은 것으로 나타났으며 3개 시료간의 원산지별 유의적 차이가 있었다(p<0.05). X-선 회절도의 강도 및 피크의 위치나 모양은 거의 비슷하게 관찰되었으나 원산지별 뚜렷한 차이는 보이지 않았다. 장방출주사전자현미경으로 관찰한 조전분은 중국산과 북한산에서 일부 호화가 관찰되어 원산지별 뚜렷한 차이를 보였으나 겔전분은 원산지별 차이를 보이질 않았다. 겔의 이수율에서는 국내산과 중국산의 경우 10일차 저장기간 중 2, 3일차에서 북한산은 3, 4일차에서 가장 높은 이수율을 보였다. 3개 시료 간 저장 1, 2, 3일차에서는 유의적 차이를 나타내었으나(p<0.05), 4일차부터 10일차까지는 유의적 차이가 없었다. 시차주사열량계에 의한 호화특성피크에서는 저장 1일차 시료에서 국내산이 $55.28^{\circ}C$로 중국산의 $54.45^{\circ}C$와 북한산의 $54.12^{\circ}C$보다 높았다. 저장일수가 지날수록 점차 감소하였으며 호화개시온도 및 최대호화온도에서 비슷한 경향을 보였다. 호화엔탈피값(${\Delta}H$)은 시료의 저장일수에 따라 증가하였으며, 국내산 북한산 중국산으로 높았다. 물성의 특성치를 나타내는 조직감의 경도에서는 북한산이 국내산, 중국산보다 높은 값을 보였다. 저장일수별 1, 3, 5, 7일차에서 3개 시료간의 원산지별 유의적 차이가 있었다(p<0.05). 도토리묵의 외관적 품질을 결정하는 표면의 색도 변화는 L값, a값에서 북한산, 중국산, 국내산으로 높았으며, 저장일수 1, 3, 5, 7, 9일차에서 시료간의 유의적 차이를 나타내었다(p<0.05). b값은 국내산이 가장 높았으며 그 다음 북한산, 중국산으로 높았다. b값에서도 시료간의 유의적 차이가 있었다(p<0.05). 관능검사 전체항목에서는 3개 시료간의 유의성은 없는 것으로 나타났다.

• Asian-Australasian Journal of Animal Sciences
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• 제20권8호
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• pp.1285-1291
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• 2007

This research investigated variation in the improvement of the texture of chicken and pork sausages induced by microbial transglutaminase (MTG). The extractability of myofibrillar proteins from these sausages as well as the ${\varepsilon}-({\gamma}-glutamyl)$lysine (G-L)　content were also investigated. MTG treatment of sausages significantly increased the breaking strength values in both meat types, especially for samples incubated at $40^{\circ}C$. However, values of the breaking strength in both meat types were increased differently. The variation in protein extractability of samples incubated at $40^{\circ}C$ for both meat types could lead to some consideration of the mechanisms and the high accessions of myosin heavy chain (MHC) to MTG. SDS-PAGE analysis showed significant changes in the density of the bands after adding MTG, especially for the pork samples in which the bands disappeared totally. The G-L content in the presence of MTG was double that in control samples of both meat types. This study suggests that the binding ability of myofibrillar proteins with MTG is strong. This leads us to suggest that MTG functions positively with different improvements in the texture of chicken and pork products that are treated mechanically, such as sausages. Variability in gel improvement level between chicken and pork sausages was observed; this resulted from the variation in meat proteins in response to MTG, as well as to the original glutamyl and lysine content.

• 한국축산식품학회지
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• 제34권1호
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• pp.122-126
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• 2014

This study was performed to evaluate the effects of chicken breast meat on the quality of mackerel sausages. The mackerel sausages were manufactured by additions of 5%, 7%, and 10% of chicken breast meat. The lightness of mackerel sausages showed no significant differences between the control and addition groups. The redness increased in a dose-dependent manner, but the yellowness decreased significantly with the addition of 7% chicken breast meat (p<0.05). The whiteness value of mackerel sausage added with 7% chicken breast meat was significantly higher than those of the other groups (p<0.05). In texture analysis, the hardness and adhesiveness of the mackerel sausage added with 5% of chicken breast meat showed no significant differences as compared to the control. However, the mackerel sausages added with 7% and 10% of chicken breast meat showed a dose-dependent decrease. The gel strength of the mackerel sausage added with 5% chicken breast meat was not significantly different from the control, but the addition of 7% and 10% chicken breast meat reduced the gel strength of the mackerel sausage. In sensory evaluation, the mackerel sausages prepared with chicken breast meat have higher scores in smell, taste, texture, hardness, chewiness, and overall preference as compared to the no addition group. Therefore, these results suggest that the optimal condition for improving the properties within mackerel sausages was 5% addition of chicken breast meat.

• 동아시아식생활학회지
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• 제26권2호
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• pp.171-180
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• 2016

The purpose of this study was to develop a cooking method for skate pipyun made from skate skin and water. As the gel formation conditions, several skin contents (30~60%) and cooking times (10, 14, and 18 min) were determined. Test for quality characteristics of pipyuns was carried out by measuring texture, water content and pH, sensory evaluation, and heat stability of pipyun gel: five samples (S2: 40%, 10 min, S3: 50%, 10 min, S6: 40%, 14 min, S9: 30%, 18 min, S10: 40%, 18 min) with appropriate gel texture were selected based on their hardness, adhesiveness, and springiness. There was no difference in color among the five pipyuns. Hardness, chewiness, and gumminess of pipyuns significantly increased depending on skate skin content and cooking time. Water contents were significantly higher in S2 (83.40%) and S6 (82.97%). The pH levels of pipyuns appeared to be weakly alkali in the range of 8.17~8.71. In the sensory evaluation, S2 was the most preferred overall with significantly higher evaluation of transparence, gloss, and smoothness. The stability of gels S2 and S9 decreased during storage at $10^{\circ}C$ for 8 hours, and at $20^{\circ}C$ for 60 min. Therefore, heating a mixture of 40% skate skin with 60% water for 10 min is recommended as optimum conditions for producing skate pipyun.

• Journal of Animal Science and Technology
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• 제49권3호
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• pp.395-404
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• 2007

수리미 원료육의 특성을 분석하기 위하여 폐계가슴살(T1), 기계발골계육인 S사 MDCM(T2) 및 J사 MDCM(T3)을 활용하여 pH 11.0의 알칼리 조절법으로 수리미를 제조한 후 품질 특성을 비교한 결과 명태연육을 활용한 수리미인 대조구는 다른 처리구들에 비해 백색도, 응집성, 관능평가의 기호도가 높은 장점을 나타낸 반면 검성, 씹힘성 및 겔 특성이 낮은 단점을 나타내었다. T1은 다른 처리구들에 비해 명도, 표면경도, 변형값, 젤리강도 및 관능평가의 향이 높은 장점을 나타낸 반면 조직감 및 접기실험 결과가 낮게 나타났다. T2는 다른 처리구들에 비해 조직감, 전단가 및 겔 특성이 높은 반면 변형값, 관능평가의 기호도가 낮고, 황색도가 높은 단점을 나타내었다. 또한 T3의 경우 다른 처리구들에 비해 응집성이 가장 높았으며, 적색도가 높고, 명도 및 백색도 낮은 단점을 나타내었다. 결론적으로 원료육의 차이에 따른 수리미의 품질 특성을 비교한 결과 폐계가슴살을 활용한 T1에서 높은 단백질 함량과 낮은 지방 함량을 보여 수리미 원료로서의 활용도가 높을 것으로 판단된다. 또한 수리미 주요 겔 특성인 변형값과 응집성을 중심으로 볼 때 명태연육을 대체할 수 있는 수리미 원료육으로 T1과 T3가 뛰어난 것으로 나타났다. 그러나 T1과는 달리 MDCM(T2 및 T3)은 적색도가 높고 백색도가 낮아 수리미 제조시 외관적 제품 특성에 부정적인 영향을 미칠 뿐만 아니라 기호도에서 낮은 점수를 획득하여 이에 대한 추가 연구가 필요할 것이라 판단된다.

• 한국식품영양학회지
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• 제20권4호
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• pp.399-405
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• 2007

The quality characteristics of breads made by adding levels of 30%, 60%, and 100% aloe gel were investigated. The 60% aloe gel sample had a larger dough volume than the control dough. Also, the loaf volume and specific volume of the bread made with 60% aloe gel were larger than those of the control bread. The pasting temperature increased gradually with the increasing amounts of substituted aloe gel as compared to wheat flour with water added$(66.5{\pm}12^{\circ}C)$; the wheat flour with 100% aloe gel had a pasting temperature of $90.7{\pm}1.1^{\circ}C$. Peak viscosity decreased gradually with increasing amounts of aloe gel when compared to the wheat flour with water added. Setback also was decreased gradually with the increasing amounts of aloe gel as compared to the wheat flour with added water. From the setback decrease it is suggested that the aloe controlled retrogradation of the bread during short-term storage. The crumb color of the bread made with the aloe gel was not significantly different to that of the control bread, and the color of the crumb was yellow-white. Bread hardness decreased gradually with increasing amounts of the substituted aloe gel. However, bread gumminess and chewiness increased gradually with increasing amounts of aloe gel. The springiness of the bread made with 100% aloe gel was lower than that of the control bread. With regard to flavor and taste, the bread made with 100% aloe gel produced a green-like odor and had a bitter taste. The mouth feel of the breads made with aloe gel was considered soft and moist. The overall acceptabilities of the breads made with 30% and 60% aloe gel were not significantly different from the control bread, but the bread made with 100% aloe gel had a green smell and bitter taste. Yet accordingly, the results indicate that functional and health products with improved quality could be developed by adding aloe gel to breads and cakes.

• Food Science and Biotechnology
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• 제14권1호
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• pp.11-15
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• 2005

Dynamic shear moduli of isolated soy protein solutions upon heating were measured to monitor gelation. Onsets of gelation coincide with onset temperatures of denaturation in glycinin and ${\beta}$-conglycinin solutions, whereas in isolated soy proteins, onset of gelation was above denaturation temperature of ${\beta}$-conglycinin with storage modulus increasing in two steps. The first increase in storage modulus of isolated soy proteins occurred at about $78.5^{\circ}C$, while the second increase started at about $93^{\circ}C$. Gel properties of soy protein gels having different proportions of glycinin and ${\beta}$-conglycinin were measured by compression-decompression test. ${\beta}$-conglycinin was responsible for gel elasticity. Glycinin significantly increased hardness, toughness, and fracturability of gels at high heating temperature near $100^{\circ}C$. Results reveal texture of soy protein gels can be controlled by regulating ratio of glycinin to ${\beta}$-conglycinin and heating temperature.