• 한국식품영양학회지
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• 제28권4호
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• pp.558-570
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• 2015

To develop and industrialize functional foods containing peanut sprout extract (PSE) and powder (PSP), the present study investigated the quality characteristics and antioxidant effects of breads prepared with 0, 0.5, 1, 2, 2.5, 5, 7.5, and 10% PSE and PSP. The expansion ratio of the dough, the quality characteristics such as volume, weight, specific volume, baking loss, color, texture, and sensory preference were evaluated. There were significant differences in the bread volume and specific volume among the control, PSE and PSP groups (p<0.001). Additionally, the weight and baking loss were decreased with an increasing amount of PSP (p<0.001). As the amount of PSE and PSP were increased, the L value of the crumb decreased, whereas the a and b values of the crumb significantly increased (p<0.001), suggesting that the crumb color of the bread may be significancy (p<0.001). As the amount of PSE and PSP increased, the hardness of bread significantly and rapidly increased from 5%. Meanwhile, there was no significance in springiness among the control, PSE and PSP groups. The total resveratrol content and DPPH free radical-scavenging activity of the bread significantly increased depending on the amounts of PSE and PSP (p<0.001). In the overall acceptance test, no significant differences were observed in the color, flavour, or texture, however, the taste and overall acceptance were significantly decreased between the control and the PSE group. All the sensory characteristics in the PSP group were significantly reduced compared with the control. Considering the above results, it can be expected that the suitable amount of PSE and PSP substituted for wheat flour will be from 1.0 to 2.5%. Furthermore, follow-up studies are being carried out continuously.

• 동아시아식생활학회지
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• 제19권4호
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• pp.635-640
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• 2009

In this study, muffins were made with the addition of 0%, 3%, 6% and 9% of Chungkukjang powder and, the quality characteristics, such as volume, height, appearance, chromaticity and moisture contents, were measured using SEM (Scanning Electronic Microscope) measurement, texture tests and sensory tests. In the regards to volume, as the added amount of added Chungkukjang increased, the volume also increased. There was no significant difference in the height and moisture content of the muffins at the different Chungkukjang powder concentrations. Using SEM, it was shown that as the amount of added Chungkukjang increased, the gluten content decreased, which in turn caused the formation of thick cell membranes and rough pores and reduced gluten composition capacity. Luminosity L value in Chungkukjang muffin decreased as the amount of added Chungkukjang powder increased. There was significant difference in the red chromaticity a value and yellow chromaticity b value among the samples (p<0.05). The results of the texture test showed that the hardness of the Chungkukjang muffin decreased as the amount of added Chungkukjang increased. In addition, as the amount of added Chungkukjang increased, the adhesiveness decreased. There was no significant difference in springing, chewiness and gumminess among the samples. There was a significant difference in the cohesiveness among all other samples in cohesiveness (p<0.05). The results of the sensory test showed that the wave form of the Chungkukjang muffin decreased as the amount of added Chungkukjang increased. The pore of the muffin increased as the amount of added Chungkukjang increased. The color quality of the muffin decreased as the amount of added Chungkukjang increased. In terms of overall acceptability, 6% Chungkukjang was shown to result in the highest preference level.

• 한국지역사회생활과학회지
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• 제22권4호
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• pp.573-578
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• 2011

This research was conducted to enhance the value of low quality sweet persimmon by processing paste by combining low quality sweet persimmon and red-bean. In order to make sweet persimmon paste containing red-bean, the following procedures were executed : 1) the sweet persimmon was cleaned by water 2) the fruit stalk was removed 3) it was peeled, sliced, pitted and crushed 4) steamed and peeled red-bean paste was mixed 5) sweetening materials(starch syrup, sugar and dextrin) and salt were mixed 6) boiled and stored in refrigerator. Sweet persimmon was peeled, stem and seed was removed to make the paste. When mixing sweet persimmon paste and red-bean paste in the ratio of 6 : 4, sensory point of taste and overall desirability were higher than mixing in 5 : 5 and 4 : 6 but texture was lower. The sweet persimmon paste containing red-bean was softened and the sugar content was increased from 41.4$^{\circ}$Brix to 53.1$^{\circ}$Brix when 10% dextrin was added. The overall sensory evaluation was higher in sweet persimmon paste containing red-bean than commercial red-bean paste when 10% dextrin was added. The overall desirability also shown a significant difference between them. Even though findings were statistically insignificant, sweet persimmon powder with red-bean paste increased in texture and overall desirability compared with commercial red-beans paste. Sweet persimmon powder paste containing red-bean significantly decreased in flavor, color, taste and overall desirability compared with sweet persimmon paste containing red-bean. As a result of this study, the best combination for the quantity of sub-materials to make sweet persimmon paste was 600g of sweet persimmon, 400g of red-bean, starch syrup 120g, sugar 60g, salt 4g and dextrin 100g.

• 한국조리학회지
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• 제21권1호
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• pp.225-234
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• 2015

본 연구에서는 산사추출액을 첨가한 양갱을 제조하여 이화학적 제품특성을 분석하였다. 산사추출액 첨가 양갱의 수분함량은 32.0~32.7%로 대조군과 차이를 나타내지 않았다. 산사추출액 첨가량이 증가할수록 양갱의 pH는 6.8~5.1로 낮아지는 경향을 보이고, 산도는 0.1~0.7%로 증가하였다. 양갱의 색도 측정에서 명도(L)와 황색도(b)는 산사추출액 첨가량이 증가함에 따라 감소한 반면에 적색도(a)는 증가하였다. 조직감 측정에서는 산사추출액 함량이 증가함에 따라 대조군에 비해 경도가 최대 14%까지 증가한다. 관능검사에서 맛, 색, 향, 질감 및 전반적인 기호도 평가에서 산사추출액 15%를 첨가한 양갱이 가장 높은 평가결과를 받았다. 이상의 결과를 통하여 우수한 기능성 소재로 각광을 받고 있는 산사추출액을 기능성 양갱 제조 시 첨가량은 앙금 대비 15%가 가장 적당할 것으로 사료되며, 기능성 가공 식품의 제품개발 및 연구에 산사추출액의 활용도를 높여 가공식품 시장에 도입하였으면 한다.

• 한국식품영양학회지
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• 제27권1호
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• pp.1-9
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• 2014

This study is performed to examine the functional and quality characteristics of glutinous barley Jeung-pyun added with beet powder. Jeung-pyun is being prepared with concentration of 0, 2, 4, 6 and 8% (w/w) of the beet according to nonglutinous rice powder weight. The pH level of Jeung-pyun batters decrease along with fermentation time. However, the pH level of Jeung-pyun is higher than that of the Jeung-pyun batter. For hunter's color value of glutinous barley Jeung-pyun added with beet powder, the L (lightness) values decrease with increasing concentrations of beet powder, whereas a (redness) values increase (p<0.001). In the texture analysis, the hardness, chewiness and gumminess are significantly increased with the amount of glutinous barley Jeung-pyun with added beet powder. According to sensory evaluations, the appearance, color, flavor, taste, texture and overall quality are considered very good in the 4% of added beer powder in glutinous barley Jeung-pyun (p<0.001). The antioxidant activities of beet powder by DPPH free radical scavenging activity, ferric reducing antioxidant power and total phenolic contents are being recorded at $259.52{\mu}{\ell}/mg$, $0.44{\pm}0.01$, $15.29{\pm}0.04mg$ GAE/g respectively. The antioxidant activities of glutinous barley Jeung-pyun added with beet powder increase with increasing concentrations of beet powder. These results suggest that beet powder are useful as functional food resources within antioxidant activities.

• 한국식품영양과학회지
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• 제12권4호
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• pp.374-381
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• 1983

다획성 적색육어류(多獲性赤色肉魚類)인 정어리를 효율적으로 이용하기 위한 방안의 하나로 정어리소시지의 품질을 개선하고자, 소시지의 원료로서 정어리를 사용하였을 때의 제품의 가공조건을 구명하고, 대두단백질과 훈액을 첨가했을 때 정어리소시지의 품질에 미치는 효과를 검토하였다. 정어리소시지 제조시 첨가물의 최적첨가량은 수세육에 대해 소금 1.5%, 설탕 1.5%, 글루탐산나트륨 0.2%, 후추가루 0.2%, 마늘가루 0.2%, nutmeg 0.2%, beef extract 0.4% 및 식용색소액(Red 40호와 Yellow 5호의 혼합액) 0.05%이었으며, 훈액은 수세육에 대해 0.1~0.2% 첨가하는 것이 좋았다. 이들 최적첨가량으로 선어를 이용한 정어리소시지 제조시 탄력보강제는 옥수수전분 10%에 대해 ${\alpha}$-starch와 대두단백질을 각각 2%, 3% 대체하여 첨가하는 것이 texture나 식감면(食感面)에서 적합하였다.

• Nutrition Research and Practice
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• 제15권5호
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• pp.655-671
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• 2021

BACKGROUND/OBJECTIVES: While plate waste has been widely investigated in hospitals, there have been minimal studies specific to the texture-modified diet (TMD). This study aims to determine the percentage of plate waste among patients prescribed with TMD and its contributory factors. SUBJECTS/METHODS: This was a single-centre study conducted in the university hospital on three types of TMD (blended diet, mixed porridge, minced diet) during lunch and dinner meals. Weighing method and visual estimation method assisted by digital photograph were adopted in this study. Face to face interview was carried out to investigate on 1) the food/food service quality factors in terms of patients' satisfaction level towards sensorial quality of food and food services provided and 2) the clinical/external factors including appetite, the provision of oral nutrition support, time taking the diet, the need for feeding assistance and the length of hospital stay. RESULTS: The mean percentage of overall plate waste of 95 patients receiving TMD was high (47.5%). Blended diet was identified as the most wasted diet (65%) followed by minced diet (56%) and mixed porridge (35%). Satisfaction level among patients was moderate. Patients on TMD in general had higher satisfaction level on the aspect of food service as compared to food quality. Substantial association between sensorial qualities of food and plate waste were varied according to individual TMD type. A multiple linear regression showed that only the satisfaction level toward the aspects of appearance and variety of foods were the predictors of TMD plate waste (R² = 0.254, P < 0.05). CONCLUSIONS: A significant relationship between the percentage of plate waste and the overall satisfaction level of patients receiving TMD suggests that vigorous strategies are needed to reduce the food waste of TMD which will lead to a better nutritional status and clinical outcomes among the patients.

• 한국식품영양학회지
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• 제32권1호
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• pp.11-26
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• 2019

The objective of this study was to reduce the waste rate of onion peel, which has excellent functionalities, and to promote its industrial utilization. The methodology involved preparing beef jerkies using liquid seasonings with 0% (OPE0), 50% (OPE50) and 100% (OPE100) onion peel extract (OPE) of domestically produced onion, respectively; and assessing their antioxidant activities and quality characteristics. As the amount of added OPE increased, the contents of crude protein and crude ash increased, while those of crude fat decreased. As for color values, increase in the amount of added OPE led to increase in L value and b value, but decrease in a value. The measurement of mechanical texture showed that hardness and cohesiveness decreased as the amount of added OPE increased. TBARS (thiobarbituric acid reactive substance) content decreased as the amount of added OPE increased. And the amount of added OPE increased, all the antioxidant activity of beef jerky increased. Acceptability test showed the highest preference for OPE50 with regard to flavor, taste texture and overall acceptability. Quantitative descriptive analysis (QDA) showed that increase in the amount of added OPE led to increase in meat color, salty taste, sweet taste, meat flavor and chewiness and decrease in off-flavor. According to principal component analysis (PCA), OPE50 and OPE100 had high levels of the sensory attributes that increase preference-such as meat color, salty taste, sweet taste, meat flavor and chewiness. Based on such results, it was established that 50% is the optimal mixing ratio of OPE for preparing a beef jerky of high preference that also has excellent quality characteristics and antioxidant activity.

• 한국식품영양학회지
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• 제31권6호
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• pp.844-857
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• 2018

This study evaluates antioxidant activity and quality characteristics of noodle adding domestic apiose (Apios americana Medikus) powder at the ratios of 0, 5, 10, 15, and 20%. The moisture content increased as more apiose was added while the pH decreased as more apiose was added. On the other hand, water absorption ratio and turbidity increased as more apiose was added. The L value decreased while the a value increased as more apiose was added. In texture, the hardness increased while cohesiveness decreased as more apiose was added. As a result, the overall preferences, the appearance, aroma, taste, and texture were the best when 15% apiose was added. In quantitative descriptive analysis (QDA), it turned out that brown color, bitter taste, delicate flavor, hardness, adhesiveness and chewiness increased as more apiose was added. However, crystallinity, spreadability, flour flavor, springiness decreased as more apiose was added. In principal component analysis (PCA), it was found out that when more than 15% apiose was added to the noodles. Antioxidant activity increased all for total phenolic, flavonoid contents and DPPH radical scavenging activity as more apiose was added. Collectively, it was noted that the preference, antioxidant activity and quality are the best when 15% apiose was added to noodles.

• 한국축산식품학회지
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• 제42권4호
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• pp.593-608
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• 2022

The effect of hot-air dried Lentinula edodes pileus (DLE) on the quality and organoleptic properties of rolled-dumplings was evaluated. DLE was prepared by drying at 60℃ for 24 h and added (Non, 7%, and 9%) to rolled-dumplings. The proximate composition, pH, color (CIE L^*, a^*, b^*), and cooking yield were analyzed. Texture profile analysis, electronic-nose (e-nose), electronic-tongue (e-tongue), and organoleptic evaluation were also conducted. The cooking yield of dumplings with 9% DLE was significantly lower than that of the congeners without DLE, whereas 7% DLE did not lead to significant differences compared without DLE. With increasing DLE addition, the pH and lightness of the dumplings decreased significantly, whereas the redness tended to increase. The texture profile was significantly higher for the dumplings with DLE compared to those without DLE. E-nose analysis confirmed that DLE addition led to the positive odors (methanethiol: meaty, sulfurous; 3-methylbutanal: malty, toasted) and the negative odors (trimethylamine: ammoniacal; acetic acid: acidic, sour). E-tongue analysis showed that DLE addition decreased the intensity of the sourness and increased the intensity of the saltiness and umami of rolled-dumplings. DLE addition improved the overall organoleptic properties, but 9% DLE can be recognized as a foreign substance in organoleptic acceptance. Consequently, DLE has the potential to serve as a flavor and odor enhancer for rolled-dumplings, and the addition of DLE can positively improve consumer acceptance by improving the quality and organoleptic properties.