• 생물환경조절학회지
• /
• 제21권4호
• /
• pp.404-410
• /
• 2012

본 연구는 수출용 딸기 '매향' 품종을 09:00와 14:00에 각각 수확하여 $4^{\circ}C$ 예냉 처리 혹은 예냉 무처리 후 $4^{\circ}C$와 $8^{\circ}C$에 저장하면서 딸기의 품질변화와 상품성 유지 효과를 구명하기 위해 수행되었다. 2010년 5월 4일에 숙도 60%의 과실을 경상남도 진주지역 상업적 온실에서 수확하였다. 농가의 예냉기에서 3시간 동안 예냉한 딸기를 30분 만에 실험실로 수송하고, 즉시 저장고에 저장하였다. 예냉은 농가 현장에 설치되어 있는 간이 예냉기를 이용하였다. 과실은 PVC랩과 골판지상자에 포장 된 후 $4^{\circ}C$와 $8^{\circ}C$의 항온 저장고에 두어 실험하였다. 저장하는 동안 딸기의 무게변화, 경도, 색도, 당도, 잿빛곰팡이 발생률을 이틀 간격으로 2010년 5월 6일부터 5월 14일까지 조사하였다. 숙도가 진행됨에 따라 경도 및 당도가 감소하였다. Hunter 'L'과 'a' 값은 시간이 경과함에 따라 감소하였다. 또한 모든 온도처리에서 저장 기간이 경과함에 따라 무게의 변화가 감소하였다. 과실의 표피조직에 무름병의 발생 시작 후 잿빛곰팡이가 발생하였다. 잿빛곰팡이는 저장온도 $4^{\circ}C$ 처리구에서 보다는 $8^{\circ}C$ 처리구에서 가장 많이 발생하였다. 하지만 수확 시간과 예냉 유무에 따른 저장성의 차이는 나타나지 않았다. 본 연구는 $4^{\circ}C$ 예냉처리 후 $4^{\circ}C$에서 저장하였을 때 신선도가 가장 오래 유지되었다.

• 한국식생활문화학회지
• /
• 제30권2호
• /
• pp.213-219
• /
• 2015

This study was conducted to promote the utilization of fish paste containing four different amounts (0%: control, 2, 4, and 6%) of cheonggukjang powder. For Hunter color values, L values of samples decreased as concentration of cheonggukjang powder increased, and a and b values increased. Folding tests for all samples showed good flexibility. In the texture meter test, hardness, cohesiveness, and springiness increased according to increasing concentrations of cheonggukjang powder. However, gumminess and brittleness of fish paste were reduced upon addition of cheonggukjang powder. In the sensory evaluation, fish paste prepared with 2% cheonggukjang powder was more preferred over other fish pastes. This study suggests that addition of 2% cheonggukjang powder to fish paste could be a good way to increase cheonggukjang powder without decreasing texture acceptability.

• 동아시아식생활학회지
• /
• 제19권3호
• /
• pp.401-408
• /
• 2009

The purpose of this study was to investigate the quality characteristics of Maejakgwas prepared with different concentrations of shrimp powder (0, 1, 2, 3, 4%) substituted for flour as a snack food for kindergarteners. The pH of the Maejakgwas dough decreased significantly as the level of shrimp powder increased; however, there were no significant differences in dough values among the test groups. Furthermore, the spread factor values of the groups were found to be inversely proportional to the shrimp powder concentration. Hunter's color L, a and b values decreased significantly as the level of shrimp powder increased. Moreover, the 2~4% shrimp powder groups had increased levels of hardness, cohesiveness, springiness, and brittleness when compared to the control. Finally, an acceptance test, the Maejakgwas sample containing 3% shrimp powder received the highest scores.

• 한국식생활문화학회지
• /
• 제25권4호
• /
• pp.473-479
• /
• 2010

The purpose of this study was to investigate the quality characteristics of Maejakgwas prepared with various concentrations of Enteromorpha intenstinalis powder (0, 1, 2, 3, 4%) substituted for flour. The pH of the Maejakgwas dough decreased significantly in response to all levels of Enteromorpha intenstinalis powder (EIP). However, there were no significant differences in dough values among the test groups. Furthermore, when the spread factor values were compared among the groups, they were found to be inversely proportional to the EIP concentration. In addition, the Hunter's color L, a and b values decreased significantly as the level of EIP increased. Moreover, the addition of 2~4% EIP resulted in increased hardness, cohesiveness, springiness and brittleness compared to those of control. Finally, the results of an acceptance test showed that Maejakgwas containing 3% EIP had the highest scores.

• 한국식생활문화학회지
• /
• 제23권6호
• /
• pp.771-778
• /
• 2008

This study was conducted to investigate the quality characteristics of cookies prepared using skate powder (0, 1, 3, 5, 7%) as a substitute for flour. The pH of the cookie dough decreased significantly in response to the addition of all levels of skate powder. However, there were no significant differences in the dough values among the test groups. Furthermore, when the spread factor values were compared among groups, they were found to be inversely proportional to the skate powder concentration. In addition, the Hunter's color L, a and b values decreased significantly as the level of skate powder increased. Moreover, the addition of 1-7% skate powder resulted in increased hardness, cohesiveness, springiness, and brittleness when compared to the control. Finally, the results of the sensory evaluation and acceptance test showed that the cookies containing 3% skate powder had the highest scores.

• 동아시아식생활학회지
• /
• 제19권6호
• /
• pp.935-942
• /
• 2009

For the economical use of the medicinal effects and functionality of Chrysanthemum indicum L (gamkug) this study analyzed the physicochemical and sensory characteristics of juak (tradition Korean rice cakes such as backed rice cakes) prepared with different levels of Chrysanthemum indicum L. powder (0, 1, 2, 3, 4, 5%). The diameter of the juak increased with increasing levels of the added gamkug powder, whereas the height decreased with increasing amount of the powder. The Hunter colorimeteric L-values of the dough and gamkug-juak decreased as the amount of gamkug powder increased. Hunter a and b-values both increased with increasing levels of the gamkug powder. Textural characteristics results for the gamkug juak dough indicated increasing hardness and, chewiness values as the amount of gamkug powder increased. After cooking, there were decrease in hardness and chewiness as the amount of gamkug powder increased. Springiness, cohesiveness, brittleness were not significantly different as the level of gamkug powder increased. According to sensory evaluation results, appearance, color, and flavor showed significantlyn (p<0.001) higher scores as the addition level of gamkug powder increased. The 2~4% addition of gamkug powder presented significantly (p<0.001) higher scores for non-oily and herb taste. There were no significant differences in the sensory texture results among all treatments of the juak. After taste was deemed best for the containing 3% gamkug powder. Overall, the optimum addition level of gamkug powder was proposed as 3% in glutinous flour for attributes of appearance, taste, flavor, texture, and the overall acceptability of the product.

• 동아시아식생활학회지
• /
• 제23권4호
• /
• pp.413-422
• /
• 2013

This study investigates the kimchi from Jangsu area (JSK) and its comparison with commercial kimchi (CMK). We conducted a sensory evaluation for the pH, titratable acidity, salinity, hunter's color values and mechanical characteristics of kimchi. The pH of JSK is significantly higher than CMK throughout the fermentation (p<0.001). At 15 days, JSK reached the stage of optimal maturity for pH 4.23~4.55 and CMK showed pH 3.96~4.00 as conditions after the optimal maturity (p<0.001). From the results of acidity analyses, CMK also showed higher acidity values than JSK (p<0.001), indicating that the rate of fermentation progress was faster in CMK. Salinity of JSK was a litter higher than CMK1 and CMK2 (p<0.001) and JSK indicated significantly higher L, a, b values during fermentation (p<0.001). Moreover, the textural values were significantly higher in JSK2 and JSK3 retaining hardness of the tissues. In the sensory assessment, the color, flavor, crispness, taste, and overall preferences were higher in JSK3 at 15 days and 30 days than CMK. Therefore, it seems necessary for recipe developments of kimchi with local characteristics in order to industrialize kimchi by using alpine crops at Jangsu area.

• 한국식품영양학회지
• /
• 제21권2호
• /
• pp.184-189
• /
• 2008

Soybean powder is a readily available ingredient that is consumed daily as a functional food material. Furthermore, red Ginseng is an herb with various physiological effects. Therefore, in this study, we examined the physiochemical characteristics of Soybean Dasik samples prepared with different amounts of added red Ginseng gel, including Hunter's color values, mechanical characteristics, and sensory qualities. The results of each analysis are as follows. For the soybean Dasik stored at room temperature($20^{\circ}C$), luminance was reduced as the amount of added red Ginseng gel increased. In addition, Hunter's a and b values were significantly higher in Dasik samples that did not contain red Ginseng gel, as compared to those with increasing red Ginseng gel content. The mechanical properties of the Dasik were also measured at room temperature showing significant differences between samples(p<0.001) for hardness, springiness, cohesiveness, gumminess, and chewiness. In the sensory evaluation, 3 rounds of testing indicated that sweetness acceptance scores were significantly reduced(p<0.001) as the amount of added red Ginseng gel in the Dasik increased. Finally, overall quality was significantly different between the samples(p<0.001) and acceptance scores increased with increasing red Ginseng gel content.

• 한국식품영양학회지
• /
• 제25권4호
• /
• pp.1081-1085
• /
• 2012

본 연구에서는 수문사설에 수록된 '사삼병'의 제조법 및 기호성을 개선하기 위하여 전처리 조건과 튀김온도에 따른 품질특성을 비교 분석하였다. 거피한 더덕을 2 mm 두께로 펴고 찹쌀가루를 묻히고, 상온에서 0, 30 min간 예비건조한 후 $160^{\circ}C$에서 1 min, $180^{\circ}C$에서 40 sec간 각각 튀겼을 때, 예비 건조 시 조지방 함량 및 경도는 유의적으로 높았고, 튀김 온도에 따른 차이는 크게 나타나지 않았다. 예비건조 후 튀김 처리 시 예비건조 전에 비해 관능특성이 전반적으로 높게 평가되었다. 수침시간에 따른 사삼병의 조지방 함량 및 경도는 감소하는 경향을 보였고, 색도는 큰 차이를 보이지 않았으며, 외관, 색, 향미, 질감 및 전반적인 기호도 등의 관능특성도 유의적인 차이가 없는 것으로 나타났다. 이상의 결과로부터 30 min간 예비건조 후 $160^{\circ}C$에서 1 min간 튀김 처리 시 사삼병의 관능특성이 양호한 것으로 나타났다.

• 한국식품저장유통학회지
• /
• 제22권1호
• /
• pp.78-83
• /
• 2015

강황 분말을 0, 2, 3, 4%를 첨가한 어묵을 제조하여 색도, 절곡검사, 조직감, 관능검사 등의 품질 특성을 조사하였다. 색도 변화는 L, a값은 강황 분말의 첨가량이 증가할수록 감소하였고 b값은 증가하였다. 어묵의 유연성과 탄력성을 나타내는 절곡검사에서는 대조군을 포함한 모든 시료에서 AA로 측정되어 강황 분말의 첨가에 관계없이 우수한 것으로 나타났다. 강황 분말을 첨가한 어묵의 기계적 texture 특성은 강황 분말 첨가량이 증가할수록 경도(hardness), 응집성(cohesiveness), 탄력성(springiness)은 증가하였고, 검성(gimminess)과 파쇄성(brittleness)은 감소하였다. 관능검사 결과로 색깔(color), 향미(flavor), 조직감(texture), 맛(taste), 전체적인 선호도(overall acceptance)는 3%의 첨가군이 가장 높은 평가를 받았다. 따라서 강황 분말을 첨가한 기능성 강황 어묵의 가공 적성에 적절한 강황의 첨가량은 3%가 적당하다고 사료되며 강황을 함유한 고품질 어묵의 제조 가능성을 확인하였다.