This study investigated quality characteristics and functional components of yuzu (Citrus junos Sieb.) pulp produced during yuzu juice processing by manufacturing it according to mixing ratio of yuzu pulp. Results of pH measurement showed that the higher the mixing ratio of yuzu pulp, the lower the pH. The acidity showed a concentration-dependent increase as the mixing ratio of yuzu pulp increased. Total flavonoids, total phenols, and functional flavonoids (narirutin, naringin, hesperidin, neohesperidin) significantly increased with increasing yuzu pulp content (all p<0.05). Growth rate of Bifidobacterium infantis was approximately 5~39% higher in seasoned foods containing yuzu pulp than in commercial foods. Antibacterial effects of seasoned foods against Salmonella typhimurium and Streptococcus mutans were stronger when yuzu pulp content increased. In conclusion, seasoned foods added with yuzu pulp could be utilized in various ways as functional seasoned foods with excellent antioxidant and antibacterial activities.

This study was performed to investigate the quality characteristics and antioxidant activity of black soybean Sunsik product with functional food ingredients and functional labeling system. We prepared black soybean Sunsik (BS) containing black beans, cereals, and vegetables. Black soybean Sunsik with nondigestible maltodextrin and calcium lactate (BSN) was prepared by adding non-digestible maltodextrin and calcium lactate to the base recipe to apply a functional labeling system. The particle size in BS was 118.00 μm, whereas BSN was 127.00 μm. The respective L, a, and b color values of BS were 73.25, 2.36, and 14.21. The respective L, a, and b values of BSN were 73.21, 2.36, and 14.31. The respective water retention capacities of BS and BSN were 241.67% and 216.33%. No significant difference was observed between BS and BSN in the three physicochemical properties described above. However, the pH of BSN was 5.45, which was significantly lower than that of BS. The total respective phenolic contents of BS and BSN were 1.75 mg GAE/g and 1.61 mg GAE/g, and total respective flavonoid contents of BS and BSN were 6.36 mg RE/g and 5.95 mg RE/g. The antioxidant capacities of BS and BSN were compared via assays of DPPH and ABTS radical scavenging activities, FRAP, and reducing power. The antioxidant activities of BS and BSN increased in a dose-dependant manner. No significant difference between BS and BSN was observed in any measure of antioxidant capacity. These results suggested that the addition of functional food ingredients (non-digestible maltodextrin and calcium lactate) did not affect the quality characteristics and antioxidant activity of black soybean Sunsik.

This study was performed to determine the quality characteristics of extruded rice flour infant food with mealworm content (0, 15, and 30%) at 110 and 140℃ die temperature and 20 and 25% moisture content. An increase in mealworm content from 0 to 30% led to increased redness, yellowness, color different, water absorption index, reducing sugar, digestibility of protein and rancidity but decreased lightness, water solubility index, and digestibility of starch. Paste viscosity of extrudates increased with increasing mealworm content from 0 to 15% but decreased with increasing mealworm content from 15 to 30%. Elevation of die temperature resulted in increased color difference, water absorption index, and rancidity but decreased water solubility index and digestibility of starch. As moisture content increased, water absorption index and reducing sugar at 140℃ die temperature increased, whereas color difference, water solubility index, and reducing sugar at 110℃ die temperature decreased. In conclusion, addition of mealworm content and extrusion process could enhance nutritional quality and the physicochemical and functional properties of extrudates.

식초 농도를 달리하여 제조한 배합 초를 이용하여 만든초밥은 상온 25℃와 냉장온도인 4℃ 모두에서 초밥 제조직후에 측정한 결과값과 저장기간에 따른 pH의 변화는 유의적인 차이가 없는 것으로 나타났으며, 일반세균의 경우배합초를 첨가하지 않은 대조군은 저장 1일부터 세균수가 증가하였으나 식초를 첨가한 초밥의 경우에는 2배 산도및 3배 산도 식초를 사용한 초밥은 저장 5일째 가지 일반세균의 유의적인 변화가 없는 것으로 나타났다. 또한, 초밥 제조 시 식초의 농도 증가에 따라 초밥의 견고성, 탄력성, 응집성, 씹힘성, 부착성 및 깨짐성은 유의적으로 (p < 0.05) 감소하는 경향을 보였고, 상온 25℃에서 48시간저장기간 동안 견고성, 탄력성, 씹힘성, 깨짐성은 증가하였고, 부착성은 감소하였고, 저온 4℃에서 48시간 저장기간 동안 견고성은 상온 25℃에서 저장하는 것에 비해 견고성이 높은 것으로 나타났다. 저장온도 및 기간에 따른 색도의 변화를 측정한 결과대조구에 비해 식초를 첨가한 초밥의 명도(L)와 황색도(b)는 유의적으로(p < 0.05) 감소하였으나 초밥의 적색도(a)는 유의적인(p < 0.05) 차이가 없었다. 초밥은 4℃에서 48시간저장하는 동안 명도(L)는 유의적으로(p < 0.05) 증가하였으며, 적색도(a)는 저장하는 동안 초밥의 종류에 관계없이 (-)값이 증가하였다. 그리고 황색도(b)는 저장기간 동안 유의적인(p < 0.05) 변화는 없었다.

In this study, physio-chemical, mechanical, and sensory characteristics of Tofu containing 0, 0.5, 1.0, and 2.0% Adenophora remotiflora powder were examined. In addition, we examined the potential of utilizing Adenophora remotiflora powder as a functional food material by estimating total phenol contents, electron-donating abilities, and hydroxyl radical scavenging activities of the hot water and ethanol extracts of Adenophora remotiflora powder in the range from 0~2.0%. The total phenol content of the ethanol extracts of Adenophora remotiflora powder was 487.93μg/mL while the that of the water extract of Adenophora remotiflora powder was 403.70μ/mL. The electron-donating abilities of the ethanol and water extracts of Adenophora remotiflora powder were 75.37 and 86.10%, respectively. The hydroxyl radical scavenging activities of the ethanol and water extracts of Adenophora remotiflora powder were 65.50 and 66.22%, respectively. We also evaluated the quality characteristics of Tofu containing Adenophora remotiflora powder. In the case of color values, as the level of Adenophora remotiflora powder increased, the values of L (lightness) and a (redness) decreased, whereas that of b (yellowness) increased. In the case of mechanical properties, as the level of Adenophora remotiflora powder increased, hardness, gumminess, and chewiness values increased (p〈0.05), whereas springiness and cohesiveness values decreased (p〈0.05). In the case of sensory evaluation, MPT1.0 scored significantly higher in color, flavor, tenderness, texture, and overall quality. To sum up, Tofu containing 1% Adenophora remotiflora powder showed the highest overall preference.

Recently the market of the food waste disposer has increased. Therefore, many companies in the development of food garbage disposer has been increasing interest. In this study, we used QFD (Quality Function Development) to find out the quality factors for the development of the food waste disposer reflecting the consumer needs. HOQ (House Of Quality) showing the correlation between consumer characteristic and engineering characteristic was written by investigating the consumer needs based on the consumer complaints and survey. In addition, we generated the CTQ (Critical To Quality) reflecting the weighting of the importance of the parts. As the research result, the important quality factors for the food garbage disposer were the grinding capability, drying, and odor emission features. The crushing motor associated with grinding and dehydration appeared as the most important quality factors among the parts. Second thing was the fan motor associated with odor. The findings will be able to contribute to the development of the food waste disposer reflecting the consumer needs.

곰취 (Ligularia fischeri)는 전국의 심산수림이나 비옥 습윤한 초생지에 자생하는 다년생 초본으로 chamomile, jacobine및 ameleme등의 약리성분이 함유되어 있으며 잎의 생즙과 가열즙은 항암효과가 우수한 것으로 알려져 있다. 따라서 본 연구에서는 이러한 곰취의 식품화 이용가치를 증진시키고 이를 이용한 가공식품제조에 관한 연구를 수행하였다. 곰취의 품질특성을 조사한 결과 섬유소의 경우 0.56 g/100 g 함유되어 있