• 한국식품조리과학회지
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• 제22권5호통권95호
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• pp.583-590
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• 2006

This study was carried out to investigate the acceptable ratio of Sulgidduk with added soybean curd residue powder. The moisture content of Sulgidduk with added soybean curd residue powder (0${\sim}$ 10%) ranged from 40.54 ${\sim}$41.38%, and there were no significant differences between the addition of soybean curd residue powder and control. There were also no significant differences in swelling power and pore ratio from control to the addition of 4% soybean curd residue powder. However, these decreased with increasing addition of soybean curd residue powder of more than 6%. The L (lightness) value decreased with increasing addition of soybean curd residue powder, but the a (redness) and b (yellowness) values increased significantly. As the amount of soybean curd residue powder increased, the hardness, cohesiveness, springiness and gumminess decreased, and, the decrease was especially significant with addition of more than 6%. With increases in the storage period, the hardness, springiness and gumminess increased, while cohesiveness decreased for all additions of soybean curd residue powder. In sensory evaluations, Sulgidduk with the addition of 4% soybean curd residue powder was the most preferred with regard to overall quality. These results indicated that the Sulgidduk with 2% and 4% added soybean curd residue powder exhibited the best quality.

• 한국식생활문화학회지
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• 제38권5호
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• pp.356-364
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• 2023

This study compared the physicochemical properties of soybean curd residue and black soybean curd residue produced by hot air-drying and freeze-drying. Regardless of drying method, the crude protein, crude ash, crude fiber contents, pH, L, a, b color values and water soluble index were higher in soybean curd residue, whereas total polyphenol contents and antioxidant activity were higher in black soybean curd residue. Significant differences in water absorption index, oil absorption capacity and emulsion activity were observed between soybean curd residue and black soybean curd residue in freeze-drying. On the other hand, the emulsion stability was not significant difference in both hot-air drying and freeze-drying. The crude protein and crude fiber contents of soybean curd residue were not significant difference between hot-air drying and freeze-drying. Freeze-drying resulted in higher crude ash contents, pH, water absorption index, water soluble index, oil absorption capacity, emulsion activity and emulsion stability than hot-air drying. Hot-air drying have caused significantly higher water contents, water activity, total polyphenol contents and antioxidant activity in soybean curd residue than freeze-drying. In conclusion, soybean type and drying methods affect the physicochemical and quality characteristics of soybean curd residue, which could be important factors in the manufacture of processed foods.

• 한국식품영양과학회지
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• 제25권4호
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• pp.632-636
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• 1996

비지는 59.0%의 식이섬유를 함유하였고 막걸리박은 26.0%의 식이섬유를 gakdb하였다. 밀가루에 비지나 막걸리박을 10% 혼합하여 빵을 만들어 제빵 특성을 100% 밀가루빵과 비교하였다. 비지나 막걸리박을 10% 혼합하였을 때 반죽의 수분 흡수율과 빵의 무게는 증가하였으나 빵의 부피는 40% 정도 r마소하였다. 관능검사 결과 비지빵과 막걸리빵의 색깔, 모양, 속결의 질감 등은 100% 밀가루빵에 비하여 품질이 떨어졌다. 비지빵의 단백질 함량은 밀가루빵의 13.5%에서 15.4%로 증가하였고, 막걸리빵의 경우 16.4%로 증가하였다. 빵의 식이섬유 함량은 비지빵의 겨우 밀가루빵의 3배, 막걸리빵의 경우 2배로 증가하였다.

• 한국식품영양과학회지
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• 제25권3호
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• pp.453-459
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• 1996

This study was carried out to determine the changes in quality during the drying process and the optimum drying condition for utilizing soybean curd residue. The quality criteria for soybean curd residue were acid value, peroxide value, fatty acid composition and microbial concentration. The acid values of soybean curd residue were 7.5, 4.5 and 5.9 KOH mg/g upon 12 hour drying with open-air sun, ambient-air blast and warm-air blast, respectively. The numbers of total aerobic bacteria and molds increased remarkably during drying with open-air sunlight, ambient-air blast and warm-air blast except for hot air blast. Among different drying methods, the hot air blast drying(1kg of sample) was the most effective methods, which completed in three hours. Also, the drying method demonstrated a typical drying curve ; settling down, constant rate drying and falling rate drying period were shown within one hour, from one and three hours and after three hours, respectively. Moreover, there was significant variation in the constant drying period for the quality of soybean curd residue.

• 한국식품영양과학회지
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• 제36권11호
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• pp.1431-1435
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• 2007

일반 노란콩에 쥐눈이콩을 0, 20, 40, 60% 첨가하여 두부를 제조한 후 품질특성을 조사하였으며, 쥐눈이콩을 첨가한 두부와 아울러 두부부산물인 비지와 순물의 항산화성을 함께 비교하였다. 두부의 수율은 쥐눈이콩 첨가량이 증가함에 따라 약간 증가하였으며, 두부의 색은 L값과 b값이 감소하였다. 쥐눈이콩의 첨가량이 증가할수록 두부의 견고성과 씹힘성이 순차적으로 감소한 반면에, 쥐눈이콩을 첨가한 두부의 부착성과 응집성은 다소 높게 나타났다. DPPH free radical에 대한 전자공여능과 SOD(superoxide dismutase) 유사활성에 의한 항산화 활성을 분석한 결과, 노란콩만으로 제조한 두부에 비해 쥐눈이콩을 첨가한 두부에서 그 활성이 높았으며 쥐눈이콩의 첨가량이 증가함에 따라 항산화 활성이 증가하였다. 두부부산물인 비지, 순물의 경우 쥐눈이콩의 첨가량이 증가함에 따라 항산화 활성의 증가율이 보다 컸으며, 특히 순물의 경우 항산화 활성이 현저하게 높게 나타나 기능성 식품소재로서 활용성이 높을 것으로 전망되었다.

• 한국식품영양과학회지
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• 제26권3호
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• pp.371-375
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• 1997

The content of genistein and daidzein which were known to be major antioxidative compounds in soybeans were detected by $C_{18}$ reverse phase HPLC. Most of isoflavones in soybeans were detected in the methanol extract but much less amount of isoflavones in the water extract. Among the four different kind of soybeans, the isoflavone content was highest in brown soybean, followed by yellow, small black and black soybean, in the order. These isoflavones were known to be soluble in hot water, which means transfer of isoflavone content was highest in brown soybean, followed by yellow, small black and black soybean, in the order. These isoflavones were known to be soluble in hot water, which means transfer of isoflavones in soy curd into whey during soy curd processing. To identify the change of isoflavone content during processing of soybean curd, soybean curd were made from yellow, brown and black soybean and isoflavone content were determined in each soybean curd, curd residue and whey. Most of soflavones were remained in the whey, it means most of useful antioxidative compounds were wasted. Thus, it is necessary to develop new technology to collect these isoflavones lost during soybean curd processing.

• 한국식품조리과학회지
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• 제20권1호
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• pp.17-25
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• 2004

This study was carried out to investigate the frequency of use, knowledge, purchasing, and degree of perception of processed soybean by residents in the Kwangwon area of Korea. The frequency of use of soybean curd was once per 4∼6 days(37.9％), once per 2∼3 days(31.9％), once per ten days(25.3％) and everyday(4.9％). The degrees of knowledge about soybean curd were a little(56.0％), interest(16.5％), much(14.8％) and no interest(12.7％). 73.9％ of respondents had no experience of preparation soybean curd. The frequency of places for the intake of soybean curd were home(83.5％), restaurant(8.8％), tofu restaurant(5.6％) and the others(2.1％). The frequency of places for purchasing of soybean curd were supermarket(59.5％), market(25.0％), the others(9.9％) and department store(5.6％). The degrees of perception of soybean curd types were soybean curd(100％), uncurdled soybean curd(93.7％), soft soybean curd(64.7％), bun soybean curd(15.7％) and seaweed soybean curd(5.2％). The experience on the use of processed soybean of the respondents was highest for soybean curd(98.6％), followed by bean sprouts, soybean paste, soy sauce, soybean oil, soy flour, residue of soybean curd, soy milk, in that order. The most frequent intake experiences of soybean processed products of the subjects were beanpaste pot stew(96.8％), followed by tofu pot stew, tofu and kimchi pot stew, uncurdled bean curd pot stew, bean mixed rice, grilled tofu, in that order.

• 한국식품영양과학회지
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• 제22권6호
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• pp.673-677
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• 1993

백서를 이용하여 콩가공품(두부, 비지)의 섭취가 간장 및 혈청의 콜레스테롤 농도에 미치는 효과를 검토하였다. 단백질원으로서 casein, 건조두부분말 또는 casein과 건조비지분말의 혼합물(3 : 1, w/w)을 코레스테롤이 첨가된 정제사료로 4주간 수컷 백서를 사육하였다. 두부분말과 비지혼합물의 섭취는 카제인 단독섭취에 비하여 현저한 혈청콜레스테롤 농도를 감소시켰다. HDL-콜레스테롤농도는 카제인 섭취군이 다른 두 군보다 높았으나, HDL-콜레스테롤과 총콜레스테롤 농도에 비해 유의한 차이는 없었다. 간장콜레스테롤은 caseind을 섭취했던 두 군에 비하여 두부섭취군에서 현저하게 낮은 온도를 나타내었다. 이러한 결과는 콜레스테롤 첨가사료를 섭취한 백서에 있어서 콩가공품의 콜레스테롤 저하작용, 더 나아가 비지의 섭취는 식이중 동물성 단백질의 존재에도 불구하고 효과적인 혈청콜레스테롤 농도의 조절 가능성을 시사한다.

• Food Science and Biotechnology
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• 제16권3호
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• pp.426-433
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• 2007

We analyzed the isoflavone content of domestic soybeans during steaming, boiling, fermentation, germinating cultivation, fermentation, and soybean curd production. The isoflavone content of the beans was reduced by steaming and boiling, and overall reductions ranging from 16.0 to 65.0% of initial isoflavone values were detected. After 4 days of germinating cultivation, the total isoflavones of Eunhakong increased from 1,341 to $2,017\;{\mu}g/g$ and the total isoflavones of Guinunikong increased from 1,284 to $1,535\;{\mu}g/g$. The isoflavone content of the vinegar beans produced from Hwangkeumkong and Black No.1 increased from 1,877 to $1,956\;{\mu}g/g$, and from 885 to $1,956\;{\mu}g/g$ after 8 days of immersion in 4% acetic acid, respectively. During soybean curd production, significant amounts of isoflavones were lost in the whey (30-31 %) and soybean curd residue (15-20%). Only 37.4% of the isoflavones present in the original soybeans remained in the soybean curd with the hot extraction method, and 50.7% of them with the cold extraction method. Soybean curd prepared with whole soybean method, however, retained 80.7% of the initial isoflavones.

• 한국자원식물학회:학술대회논문집
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• 한국자원식물학회 2019년도 추계학술대회
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• pp.102-102
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• 2019

Soybean curd residue (SCR), known as a major waste product of soybean processing, is the water-insoluble fraction which is removed by filtration during soymilk production. For these reasons, SCR was usually considered as food waste. SCR might have a good potential as a functional food material, value-added processing and utilization. SCR contains high-quality protein and consists of a good source of nutrients, including protein, oil, dietary fiber, minerals, along with un-specified monosaccharides and oligosaccharides. Also, SCR might be a potential source of low cost protein for human consumption. However, SCR could be a source of bacterial contamination when during food processing. This study was aimed to investigate antibacterial capacity of natural product through detecting relationship between SCR and microbial. We isolated five bacterial strains from SCR and elucidated antibacterial activity of nature medicines to extend storage capacity of food made with SCR. Thus, the extract which showed antibacterial effects in Corynebacterium calloonae and Raoultella amithinolytica is a combination of seven kinds of extracts: Glycyrrhiza uralensis, Cudrania tricuspidata, Salvia miltiorrhiza Bunge, blueberry, Acorus gramineus, Ginkgo biloba L., Camellia sinensis. This study suggested that antibacterial activities of natural medicines could be used for extension of storage capacity in SCR-contained food.