• 동아시아식생활학회지
• /
• 제16권1호
• /
• pp.99-106
• /
• 2006

New application of rice was carried out by coating the rice with the mixture solution of ginseng and chungkukjang water extract The physicochemical characteristics of the coated rice were investigated. Moisture content of uncoated (15.26%) and coated rice$(15.57\sim15.66%)$ was not different significantly. The contents of crude protein, crude fat, and crude ash of the coated rice were higher as much as $4.28\sim11.82%\;8.47\sim47.46%$, and $11.54\sim42.31%$ than those of control, respectively. As total free amino acids in coated rice were increased by augmenting the amount of the extract, total free amino acids according to rate was increased to $3.1\sim7.8$ times. The major amino acids in the coated rice was alanine$(19.56\sim39.88\;mg%)$, leucine$(5.14\sim17.66\;mg%)$, and proline$(9.98\sim16.82\;mg%)$. Of those amino acids, alanine and $\gamma-aminobutyric$ acid in only coated rice were detected to the level of $19.56\sim39.88\;mg%$ and $7.78\sim12.36\;mg%$ respectively. The calcium amount of coated rice was increased to 15% to 20%. As increasing the coating rate, hardness, cohesiveness, chewiness, and brittleness of coated rice were decreased, but springiness was increased. Before cooking, the color of coated rice appeared yellow and after cooking turned to the light yellow. The color intensity was increased feasibly as increasing the coating rate. The sensory characteristic of rice coated manufactured by adding 15% of the extract was best and found to be similar to that of the control.

• 한국식품조리과학회지
• /
• 제26권4호
• /
• pp.390-397
• /
• 2010

Survey data from 654 adults (225 males, 429 females) were analyzed based on frequency, percentage, chi-square test, one-way ANOVA; and Duncan's multiple range test. The main results were based on the preference for chungkukjang_(CKJ) products using a 5-point Likert scale. According to the survey, traditional CKJ products received the highest score_(3.64) according to personal preference among all tested products. The responses to eight questions about CKJ products were also measured using a 5-point Likert scale. The question_ as to whether or not "CKJ has anticancer function" received the highest score_(4.24) while the "CKJ is good for hangover" scored the lowest. Regarding the preference for CKJ products, "good for health" (55.3%) and "unpleasant smell" (72.9%) were the most popular answers, Regarding the intention to eat CKJ food products, CKJ tofu was most often selected. Among the 11 items, CKJ tofu, CKJ steak, CKJ hamburger, CKJ ice cream; and CKJ vegetable salad were highly preferred foods. The percentage of respondents that expected "increasing" prospects for CKJ consumption was 55.2%, most likely because 76.9% of the respondents selected "healthy food". Regarding the reasons for decreasing prospects, 68.9% of the respondents chose "peculiar smell". In the same manner, 53.4% of adults replied that future quality improvement should "improve the smell".

• 한국식품영양과학회지
• /
• 제36권2호
• /
• pp.137-142
• /
• 2007

전통 콩발효식품인 수시장의 제조방법을 재현하고 이의 항산화활성 및 angiotensin-converting enzyme(ACE)에 대한 저해활성을 측정하였다. TEAC법으로 총항산화능을 측정한 결과 원료콩에 비해 수시장에서 유의적으로 높았고, 청국장과 유사한 항산화능을 나타내었다. 수시장 중의 이소플라본(diazein, genistein) 함량은 청국장보다는 적게 함유되어 있었으나 원료콩에 비해서 유의적으로 높게 나타났다. Phenolic acids의 함량은 수시장 형태로 제조했을 때 가장 높았으며 특히, $\rho-coumaric$ acid와 salicylic acid가 많이 함유되어 있었다. 유리아미노산의 함량은 원료콩과 비교하여 수시장에서 가장 높았고, 청국장이 다음으로높게 나타났다. 고혈압 효과를 측정한 결과 청국장보다 수시장에서 저해활성이 높았으며, 70% 에탄올로 추출한 경우 저해활성이 더 큰 것으로 나타났다.

• Preventive Nutrition and Food Science
• /
• 제13권2호
• /
• pp.77-83
• /
• 2008

To further the goal of isolating Bacillus sp. from commercial chungkukjang (CKJ) for a development of a probiotic dietary adjunct using soymilk or milk, antioxidant activity of CKJ purchased from the Sunchang Traditional Village in Chunbook province was examined. Six CKJ samples were evaluated and 3 were selected based on the results of the physicochemical analysis and sensory evaluation for further antioxidant study. $IC_{50}$ for DPPH scavenging activity of methanol extracts of CKJ ranged from 238.1 to 345.7 ${\mu}g/mL$. CKJ exhibited over 80% scavenging of ${\cdot}OH$ and ONOO- at concentrations of 100 ${\mu}g/mL$ and 250 ${\mu}g/mL$, respectively. $O_2^-$ and NO scavenging activities of three CKJ were increased in a dose dependent manner with the concentration tested from 100 to 1000 ${\mu}g/mL$. In this study, the methanol extract of CKJ exhibited a great reduction capability and powerful free radical scavenging activity, especially against OH. and ONOO-, which are the most toxic radicals responsible for oxidative damage in the body. However, radical scavenging effects of CKJ on DPPH, $O_2^-$, and nitrite radical were rather moderate. In conclusion, CKJ may reduce the oxidative stress in the body by scavenging the free radicals.

• 대한영양사협회학술지
• /
• 제12권3호
• /
• pp.289-298
• /
• 2006

We studied the effects of intake of the steamed bean powder(SB) and chungkukjang powder(CK) on blood parameters such as glucose, albumin, GOT, GPT, hematocrit, hemoglobin, total-/HDL-/LDL-cholesterol and triglyceride, and blood antioxidant nutrients such as retinol, tocopherols and carotenes in 26 college women. There were 2 groups, one group had 13 participants who consumed 30g SP and second group (13 participants) consumed 30g CK daily for 4 weeks. The study compared before with after SP/CK intake. The average age of the participants was 22.1 years, there were no significant differences between the two groups in terms of all parameters before the study. The energy intake showed no significant differences between before and after SP/CK intake. C(carbohydrate) propotion was reduced, and P(protein) and F(fat) ratio were increased after 4 week intake of SP/CK. Indices of nutritional quality(INQ) of protein(p<0.01), iron(p<0.05), zinc(p<0.05), vitamin C(p<0.05) were significantly increased after SP intake, and those of protein(p<0.05) and zinc also increased after CK intake. There were no significant differences in TG, total-/HDL-/LDL-cholesterol before and after SP/CK intake. The CK intake group showed the reduction only in retinol level in blood(p<0.05). Some students reported the improvement of the constipation and the regularity of the bowel elemination, and some students experienced the prolongation effects on one's monthly days after SP/CK intake. In this study, we could see the effect of improvement in some nutrients intake, but no effect in blood parameters by SP/CK intake for 4 weeks. That reason might be that the participants were healthy young women, or the trail period was not enough long to change.

• 한국식품영양과학회지
• /
• 제37권11호
• /
• pp.1479-1484
• /
• 2008

증자한 탈지대두 grits에 B. subtilis NUCI을 2% 접종하여 $40^{\circ}C$에서 24시간 발효하여 DSG 발효물을 제조하였다. 제조한 DSG 발효물 및 DSG의 단백질 함량은 $57.2{\sim}61.0%$로 청국장보다 높았으며, 지질은 함유하지 않았다. 그리고 DSG에서는 protease 및 $\alpha$-amylase의 활성이 없었으며, 점질물도 검출되지 않았으나, DSG 발효물은 청국장보다 더 큰 protease 활성, $\alpha$-amylase 활성, tyrosine 함량, 점질물 함량을 보였다. 또한 DSG 발효물은 DSG보다 유리아미노산 함량이 증가하는 경향이었고, phenylalanine, tyrosine, glutamic acid 등이 주된 유리아미노산으로 확인되었다. 그리고 isoflavone 함량도 DSG 발효물이 DSG보다 1.6배 더 증가되었다. 관능검사에서는 냄새 및 맛에 대한 기호도의 경우 DSG 발효물이 청국장보다 높은 값을 보여 DSG 발효물의 기호도가 더 좋은 것으로 나타났으나, 종합적인 기호도는 청국장이 DSG 발효물보다 조금 높게 나타났지만 큰 차이는 보이지 않았다.

• 한국식품저장유통학회:학술대회논문집
• /
• 한국식품저장유통학회 2007년도 학술발표회
• /
• pp.223.2-223.2
• /
• 2007

• 한국식품위생안전성학회지
• /
• 제15권4호
• /
• pp.297-303
• /
• 2000

우리나라 전통 장류인 간장, 된장, 고추장, 청국장의 위생화를 위한 방사선 조사기술의 이용 가능성을 검토할 목적으로 방사선 조사를 실시한 후 유전독성학적 안전성 실험의 일환으로 Ames test를 실시하였다. 감마선 조사 및 비조사된 간장, 된장, 고추장, 청국장 물추출 분획의 Salmonella typhimurium TA98, TA100, TA1535 및 TA1537에 대한 복귀변이 집락수를 조사한 결과, 대사활성계 도입 및 부재시 모두, 모든 시험균주에서 시험적용 농도인 10,000 $\mu\textrm{g}$/plate까지의 농도에서 복귀변이 집락수의 농도 의존적인 증가 혹은 감소를 보이지 않아 20 kGy의 고선량 감마선 조사된 간장, 된장, 고추장, 청국장은 돌연변이원성이 없는 것을 확인할 수 있었다.

• 한국조리학회지
• /
• 제23권8호
• /
• pp.11-16
• /
• 2017

In this study, two kinds of mealworm seasoning pastes (naturally fermented or inoculation of Bacillus subtilis) were prepared by applying fermentation method of chungkukjang. The samples were labeled into soybean control (SC; no fermentation), mealworm control (MC; no fermentation), mealworm natural fermentation (MR) and mealworm inoculated fermentation of Bacillus (MB). Water content, color, pH, titratable acidity, salinity, amino acid nitrogen, reducing sugar and preference test were examined on the pastes. Moisture contents were 46.9 with soybean control (MC) and 54.5~73.3 with mealworm pastes. The L-value was not significantly different between the samples. In the case of the a-value and the b-value, SC showed the highest value whereas mealworm pastes showed lower values than SC. pH and salinity were higher in mealworm pastes. Amino nitrogen and reducing sugar showed the highest values of MR 326,67 and 63.33 mg%, respectively. In the preference test, the appearance and flavor were the highest values with SC, but texture, taste and overall acceptability were with MR, Therefore, soybean fermentation method with Bacillus species could be applied to use protein of mealworm and possibly edible insects as well.

• 한국식품영양과학회지
• /
• 제30권5호
• /
• pp.839-843
• /
• 2001

감마선 조사를 이용한 장류제품의 미생물 살균 시, 감마선 조사가 장류제품의 효소활성에 미치는 영향을 살펴보기 위한여 된장, 고추장, 간장, 청국장, 메주에 5, 10, 20 kGy의 선량으로 감마선을 조사한 다음 amylase, protease, lipase 그리고 혈전용해효소 활성을 비교하였다. 가수분해효소의 활성은 메주, 청국장, 된장에서 대체로 높았고 간장과 고추장은 상대적으로 낮았다. Amylase, protease, lipase의 효소활성은 10 kGy까지의 감마선 조사에 의하여 영향을 받지 않았으며, 20 kGy의 감마선 조사구에서는 10% 내외의 효소활성 감소가 있었으나 청국장의 protease 활성감소(15%)를 제외하고는 통계적인 유의차가 없었다(p<0.05). 혈전용해효소 활성은 20 kGy까지의 감마선 조사에 의해서 효소활성 변화가 없었다.