• 한국식품과학회지
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• 제20권4호
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• pp.504-510
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• 1988

여러 종류의 제분기를 사용하여 건식 (blade hammer, test, micro mill) 및 습식과 건식병용(roller & micro mill)으로 제조한 쌀가루의 이화학적 특성을 조사 하였다. 쌀가루의 입자는 blade, hammer, test, micro mill및 roller & micro mill의 순으로 점차 미세하였으며, 입자가 미세하여 짐에 따라 색의 밝기를 나타내는 L값은 증가한 반면 a값(적색도) 및 b값(황색도)은 감소하였다. 쌀가루의 표면구조를 주사전자현미경으로 관찰한 결과 입자가 미세하여 짐에 따라 개개의 전분입자의 관찰이 용이하였다. 전분의 손상도. 말토오스 값 및 열수가용성 아밀로오스의 함량은 blade mill이 가장 낮았고 test mill이 가장 높았다. 아밀로그램상 호화개시 온도와 최고점토는 입자가 미세하여 짐에 따라 점차 낮아졌으며, 건식제분한 쌀가루 현탁액의 최고점도는 잔존하는 ${\alpha}$-아밀라아제에 의해 감소경향을 나타내었으나 습식과 건식을 병용한 쌀가루에서는 최고점도의 변화가 없었다. 건식제분의 경우 유리아미노산의 함량은 전분의 손상도가 증가함에 따라 다소 증가하였다. 쌀가루로부터 추출한 냉수가용 ${\alpha}-D-glucan$의 blue value는 $0.023{\sim}0.029$, 극대흡수파장은 $518{\sim}522nm$정도의 범위를 나타내어 이들 물질은 아밀로펙틴에 유사한 성질을 지니고 있었다.

• 한국식품과학회지
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• 제32권2호
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• pp.387-395
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• 2000

멍게껍질로부터 정제된 섬유소 슬러리를 첨가한 빵반죽의 물리적 및 제빵의 품질특성을 조사하였다. Farinograph는 멍게껍질섬유소 첨가량이 증가함에 따라 흡수량의 증가를 보였다. 반죽도달시간 및 반죽형성시간은 섬유소 첨가량이 증가함에 따라 짧아졌고, 안정도에서는 변화를 보이지 않았다. 약화도는 멍게껍질섬유소 첨가량이 증가할수록 약화도가 커졌다. Extensograph에서는 섬유소 첨가량이 증가할수록 흡수율은 증가하였고, 신장도 및 신장저항도는 감소하였다. R/E값은 섬유소 첨가비율이 높을수록 감소하였다. Amylograph에서는 멍게껍질 섬유소 첨가량이 증가할수록 최고점도는 감소하였다. 멍게껍질 섬유소 첨가량이 증가할수록 식빵의 loaf volume 및 용적비가 감소되는 결과를 보였고, 멍게껍질 섬유소 슬러리 20% 첨가까지는 빵의 관능적 품질에 유의적인 차이를 보이지 않았다. 섬유소 첨가 식빵은 보습성을 높혀 빵의 경화를 지연시킴과 함께 저장성 향상 효과를 보였다.

• 한국식품영양과학회지
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• 제33권9호
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• pp.1566-1572
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• 2004

냉동 반죽 제조시 azodicarbonamide(ADA) 첨가량을 달리하여 만든 냉동 반죽의 물성에 미치는 영향인 farinogram, amylogram, extensogram을 비교 조사하였고, 냉동 반죽의 품질을 결정하는 2차 발효 시간, 빵 제품의 pH, 수분 함량, 비용적 및 경도에 미치는 영향을 -20$^{\circ}C$ 냉동고에서 제조 직후부터 12주까지 저장하면서 비교 조사하였다. ADA 첨가량이 증가할수록 farinogram에서 반죽의 흡수율, 안정도와 강력도는 증가하고, 흡수 시간과 약화도는 감소하였으며, amylogram에서 호화 개시 온도와 최고 점도는 증가하고, 최고 점도시 온도는 감소하였다. 또한 extensogram에서는 발효시간 45분에서 면적, 신장도와 저항비는 증가하고, 저항도는 감소되었다. 냉동 반죽 제빵법으로 만든 냉동 반죽은 같은 냉동 저장 기간에서 ADA 첨가량이 증가할수록 2차 발효시간, 수분 함량 및 경도 값은 감소하였으며, pH, 비용적은 증가하였다.

• 한국식생활문화학회지
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• 제33권4호
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• pp.374-381
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• 2018

This study evaluated the quality characteristics of wet noodles added with sword bean powder(0, 5, 10, 15%) to determine the most preferred noodle recipe for consumer's desire. The proximate composition of the sword bean powder was as follows: Moisture contents were $13.4{\pm}0.08%$, protein $30.2{\pm}0.12%$, fat $0.3{\pm}0.09%$, protein $1.0{\pm}0.11%$ and carbohydrates $55.1{\pm}0.12%$, respectively. Total amino acid content of sword bean powder was measured 23,054.266 mg/100 g, especially in the order of histidine, glutamic acid and aspartic acid. The flavonoid content of sword bean powder was 17.9750 mg%. Water-binding capacity increased as the level of sword bean powder increased. When viscosity of wheat flours containing sword bean powder was measured by amylograph, the gelatinization point increased significantly as the level of sword bean powder increased, but peak viscosity decreased. As the level of sword bean powder increased, L value decreased, whereas a and b values increased. Weight, water absorption and volume of cooked noodles prepared with wheat flours containing sword bean powder decreased, whereas turbidity of soup increased. For textural properties, addition of sword bean powder increased hardness, springiness, chewiness of cooked noodles, whereas adhesiveness decreased. According to sensory evaluation such as appearance, color, flavor, taste, texture, overall preference, it was revealed noodles with 10% sword bean powder was the most preferred. According to the results, the addition of sword bean powder positively affects the overall sensory evaluation of wet noodle, and 10% is the optimal level for addition.

• 한국식품조리과학회지
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• 제9권3호
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• pp.187-194
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• 1993

송피와 모시풀을 첨가하여 시루, 찜통, 압력솥 그리고 전자레인지를 이용하여 떡을 제조하고 관능검사 및 기계적텍스쳐 측정을 통하여 저장기간에 따른 떡의 품질변화를 비교, 검토하였다. 송피와 모시풀의 첨가량을 17.28%로 하여 이용 조리기기를 달리하여 제조한 경우의 수분함량은 시루, 찜통, 그리고 압력솥 조리가 각각 약 44∼48%였고, 송피와 모시풀떡 모두 전자레인지에 의한 조리에서 약 39∼42%로 가장 낮게 나타났다. 송피와 모시풀의 첨가량을 17.28%로 하여 조리기기를 달리하여 제조한 경우의 호화도 변화는 전자레인지를 이용하여 조리한 시료가 가장 급격한 감소현상을 보여주었으며, 시루를 이용하여 조리한 시료가 가장 완만한 감소현상을 보여주었다. 송피와 모시풀의 첨가량을 17.28%로 하여 조리기기를 달리하여 제조한 시료의 저장기간별 관능검사 결과 조직의 부드러운 정도, 촉촉한 정도, 쫄깃한 정도는 시루와 찜통을 이용한 것이 가장 높았고, 전자레인지 조리에서는 유의적으로 낮게 나타났다. 전반적인 바람직한 정도는 시루가 가장 높게 나타났으며, 찜통, 압력솥, 전자레인지 조리의 순서로 선호도를 보였다. 이들 모두 저장시간이 경과함에 따라 평가치가 낮아졌다. 조리기기별 기계적 측정에서는 견고성, 씹힘성은 전자레인지로 조리한 것이 가장 높았으며, 시루와 찜통을 이용하여 조리한 것이 가장 낮은 값을 보여주었다. 점착성은 시루와 찜통을 이용하여 조리했을 때 높게 나타났으며 저장시간이 경과함에 따라 압력솥, 전자레인지 조리시료가 가장 큰 감소를 보여주었다.

• 한국식품조리과학회지
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• 제22권2호
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• pp.193-203
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• 2006

The quality characteristics of cookies containing black rice flour, which has a greater variety of functional components than wheat flour, were studied. The results of the pasting properties shows that the inclusion of black rice flour to the wheat flour-mixture did not affect the pasting temperature but increased the enthalpy, indicating that more energy is needed for the starch gelatinization. The total dietary fiber and total polyphenol content increased and the cookies color became darker and deeper with increasing black rice flour content. According to the results from TA on texture, the hardness decreased and the crispness increased significantly (both, p<0.001) with increasing black rice flour content. From the acceptance test, the appearance, aroma and texture of the cookies with added black rice flour were significantly (p<0.001) lower than those of the wheat flour cookies. However, the taste and overall acceptance of the cookies with added black rice (lour did not differ significantly from those of the wheat flour cookies. According to the results from the sensory evaluation, the aroma, black rice flavor, crispness, graininess and color(gray-violet) of the cookies increased significantly(p<0.001) with increasing black rice flour content and those of the cookies with 30% black rice flour had the highest values among the cookies which weren't significantly different from those of the cookies with 20% black rice flour. From the above results, the optimal ratio for the addition of black rice flour to the cookies was 10% from the viewpoint of the sensory evaluation and functional components.

• 한국식품과학회지
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• 제25권6호
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• pp.602-607
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• 1993

본 실험에서는 토양에서 분리한 호알카리성 Bacillus sp. 유래의 cyclodextrin glycosyltransferase(CGTase)를 이용하여 전분을 기질로 하였을 때 CD의 생산에 미치는 여러 조건을 고찰하였다. CD의 초기생성속도를 최대로 하는 기질의 최적 dextrose equivalent(DE)값은 10.5이었고 이로부터 CD 생산반응인 cyclization에 필요한 기질의 최적 DE값이 존재함을 알았다. 온도가 증가할수록 CGTase의 활성도는 급격히 감소하였지만 CD 생산속도와 수율은 온도에 따라 증가하였다. 이는 CD 생산반응중 CGTase는 기질과 결합하여 열에 대해 안정성이 증가하기 때문인 것으로 생각된다.

• 한국식생활문화학회지
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• 제31권1호
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• pp.88-95
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• 2016

This study evaluated the quality characteristics of dried noodles prepared with strawberry powder in order to determine the most preferred noodle recipe for children's school meals. The proximate composition of strawberry powder used was as follows: moisture, 3.39%; crude protein, 1.53%; crude lipid, 0.97%; crude ash, 0.82%; and carbohydrates, 93.29%. When viscosity of the composite strawberry powder-wheat flours was measured by amylograph. Gelatinization point, maximum viscosity, viscosity at $95^{\circ}C$ and viscosity at $95^{\circ}C$ after 15 min decreased as the level of strawberry powder increased. As the level of strawberry powder increased, both L and b color values decreased, whereas a value increased. Weight, water absorption and volume of cooked noodles decreased, whereas turbidity of soup increased. For textural properties, addition of strawberry powder to cooked noodles reduced hardness, chewiness and brittleness. Overall preference according to the results of the sensory evaluation, noodles added with 6% strawberry powder were the most preferred. According to the results, the addition of strawberry powder can positively affect the overall sensory evaluation of dried noodles, and 6% is the optimal level for addition.

• 한국식품영양학회지
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• 제23권2호
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• pp.162-170
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• 2010

This study investigated the effect of addition of pumpkin on the physicochemical properties of rice sponge cakes. Water retention capacity(WRC) was lowest in control preparations to which no pumpkin flour was added. WRC increased as more pumpkin flour was added and rice flour with 25% of added pumpkin flour showed a WRC of 89.0%. Similar to WRC, alkaline water retention capacity(AWRC) also increased as more pumpkin flour was added and ranged from 69.7% to 80.7%. As the amount of pumpkin flour added increased, the pH increased. Similar to the sedimentation value, the Pelshenke value also increased as the amount of the added pumpkin flour increased. The gelatinization temperature did not vary significantly between the samples(p<0.05). The midline peak height, which is the height of the peak point from the baseline, showed the same tendency with that of the midline peak time, but was not significantly different between samples(p<0.05). Volume was decreased as the amount of the added pumpkin flour increased. The weight of the rice sponge cakes showed significant difference increasing with the increasing added pumpkin flour(p<0.05). There was significant difference as the specific loaf volume decreased with the increasing pumpkin flour(p<0.05).

• 동아시아식생활학회지
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• 제24권6호
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• pp.883-895
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• 2014

This study investigated quality characteristics of pan breads prepared with 0, 10, 20, 30 and 40% purple rice flour and naturally fermented blueberry-rice starters. RVA (Rapid Visco Analyzer) analysis showed that wheat flour retrogradation was not retarded by addition of purple rice flour. Using amylography, gelatinization tem. perature of purple rice flour samples was higher than that of the control, whereas maximum viscosity temperature. and maximum viscosity of purple rice flour samples were lower than those of the control. Weights of pan breads containing purple rice flour were lower than that of the control, whereas volume, specific volume and baking loss rate were higher than those of the control. The anthocyanin contents and antioxidative activites as measured by DPPH radical scavenging activity of breads increased as the concentration of purple rice flour increased. The moisture content of pan breads containing purple rice flour decreased as storage time increased. The pH of breads containing purple rice flour was higher than that of the control. Color L value decreased, whereas a and b values increased significantly, as storage time increased. In texture analyzer measurement, hardness of breads containing purple rice flour significantly increased as storage time increased. Breads containing 10~20% purple rice flour showed acceptable sensory properties, such as mouth feel, appearance, flavor, texture, taste and overall acceptability.