This study investigated the effect of bactocease, as a natural preservative, on the microbial growth and quality of fried fish paste during storage. To select the optimal concentration of bactocease, the inhibition effect of its different treatment concentrations (0.2, 0.4, and 0.8%) on total aerobic bacteria in fish paste dough during 5 days of storage was examined. The sample treated with 0.4% bactocease showed a 1.21 log reduction in microorganisms compared with that of the control. This result was higher than that with 0.2% bactocease and potassium sorbate and similar to that with 0.8% bactocease. Consequently, 0.4% bactocease was chosen as the best concentration for preparing the fried fish paste. Microbial growth on fried samples treated with preservatives was more inhibited by adding preservatives regardless of their type than that of the control after 15 days of storage. In addition, there were no significant differences in the quality between the samples treated with 0.4% bactocease and 0.2% potassium sorbate, such as volatile basic nitrogen contents, TBARS values, pH, and acidity. Therefore, these results indicate that food preservatives should be added into fried fish paste for controlling microbial growth, and bactocease can have a high potential to replace potassium sorbate in processed marine foods, including fried fish paste.

The principal objective of this study was to evaluate the utilization of fish paste with added Capsosiphon fulvescens powder were 0, 3, 5, and 7%. The moisture, crude protein, crude lipid, crude ash and carbohydrate contents of the used Capsosiphon fulvescens powder were 8.5, 33.2% 1.1, 9.6, and 47.6%, respectively. For the Hunter color values, the L, a values of the fish paste decreased with increasing concentrations of Capsosiphon fulvescens powder. The b values of the fish paste appreciation with increasing concentrations of Capsosiphon fulvescens powder. And the folding test which represent the flexibility of the fish paste, all test samples showed AA. In the texture meter test, the hardness, strength, cohesiveness, and springiness increased according to increasing concentrations of Capsosiphon fulvescens powder. However, the gumminess and brittleness of the fish paste reduced by the addition of Capsosiphon fulvescens powder. In the sensory evaluation, color and taste of the fish paste were preferred 5% Capsosiphon fulvescens powder and the fish paste prepared with 5% Capsosiphon fulvescens powder were preferred over other fish pastes. These results suggest that Capsosiphon fulvescens powder can be applied to fish paste for the purpose of high quality and functionality.

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.

This study was conducted to promote the utilization of fish paste added with green laver powder as a food product. The tested concentrations of green laver powder were 0, 3, 5, and 7%. The pH of the samples ranged from 6.71 to 6.90, and moisture content ranged from 70.03 to 70.57%. The L and a values of the samples decreased as the concentration of green laver powder increased and b value increased. Folding test in all test samples showed AA that mean good flexibility. In the texture meter test, hardness, cohesiveness, and springiness increased according to increasing concentration of green laver powder. However, gumminess and brittleness of the fish paste decreased upon addition of green laver powder. In the sensory evaluation, fish paste prepared with 5% green laver powder was preferred over other fish pastes. These results suggest that green laver powder can be applied to fish paste for the purpose of high quality and functionality.

This study analyzed fish paste containing Lagocephalus lunaris powder (LLP). The moisture, crude ash, crude protein, and crude lipid content of LLP were 6.21%, 1.03%, 74.50%, and 1.21% respectively. The tested concentrations of LLP were 0, 3, 5, and 7%. The pH of the samples ranged from 6.75 to 6.89, and moisture content ranged from 75.23% to 76.95%. The L values of the samples decreased as the concentrations of LLP decreased, and the a and b values increased. In addition, the folding test results in all test samples were “AA”, indicating a good mean flexibility. In the texture meter test, the hardness, strength, springiness, gumminess, and chewiness increased according to increasing concentrations of LLP. In the sensory evaluation, the fish paste prepared with 5% LLP were preferred over other fish pastes. These results suggest that LLP can be applied to fish paste for substantially increasing its quality and functionality.

This study was conducted to investigate rheological and sensory characteristics of fish paste prepared with Curcuma longa L. powder (0, 1, 3, 5, 7%). The moisture content of the fish paste ranged from 71.35 to 72.97%. Increasing the amount of Curcuma longa L. powder in the fish paste tended to decrease the pH value and the folding test good score in all samples. Increasing the amount of Curcuma longa L. powder in the fish paste also tended to decrease the lightness (L) in the hunter color value, but to increase the redness (a) and yellowness (b). For the textural characteristics, the addition of Curcuma longa L. powder increased the strength and decreased the springiness. In a sensory evaluation, the addition of 3% Curcuma longa L. powder had the best score in taste and overall preference. Therefore, this results suggest that adding 3% Curcuma longa L. powder would be feasible for making Curcuma longa L. fish paste.

본 연구는 식품소재로서의 활용가능성이 높고 생리활성 효과가 우수한 황기분말을 농도별로 첨가(0.5%, 1.0%, 1.5%, 2.0%)하여 어묵을 제조하고 품질특성을 측정하였다. 수분함량은 황기분말의 첨가여부에 관계없이 유의적인 차이는 나타나지 않았으며 pH는 전체적으로 6.75-6.86의 범위를 나타내었다. L값은 황기분말의 첨가량 증가에 따라 유의적인 차이는 나타나지 않았으나 a값은 높아지고 b값은 낮아지는 경향을 나타내었다. 황기분말 첨가 어묵의 절곡검사 결과는 모든 시료에서 AA로 측정되어 황기분말의 첨가가 어묵의 유연성에 영향을 미치지 않았으며 기계적 조직감 중 강도(strength)는 황기분말의 첨가량이 증가할수록 높아지는 경향을 나타내었고 검성(gumminess), 응집성(cohesiveness), 파쇄성(brittleness)은 황기분말 2.0% 첨가구가 가장 높게 측정되었다. 황기분말 첨가 어묵의 관능적특성 중 생선 비린내 정도(fishy smell)는 황기분말의 첨가량 증가에 따라 강도의 정도가 약해졌으며 구수한 냄새의 정도(savory smell)는 황기분말 1.0% 첨가구가 가장 높은 점수를 보였다. 구수한 맛의 정도(savory taste)는 황기분말 1.0% 첨가구가 6.27로 가장 높은 점수를 나타내었으며 느끼한 맛의 정도(oily taste)는 황기분말 첨가량의 증가에 따라 약해지는 것으로 평가되었다. 황기맛의 정도(Astragalus membranaceus taste)는 황기냄새의 정도와 마찬가지로 황기분말의 첨가량이 증가할수록 강하게 평가되었으며 관능적 조직감의 정도는 각 시료간 유의적인 차이가 나타나지 않았다. 관능적 선호도 평가결과, 황기분말 1% 첨가구가 냄새, 맛, 조직감, 전반적인 선호도 항목에서 가장 우수함을 나타내었다.

본 연구는 아로니아를 이용한 다양한 가공식품의 개발에 대한 일환으로 튀김어묵 제조에 아로니아의 기능성 성분을 활용하고자 아로니아 착즙액을 첨가하여 튀김어묵을 제조한 후 품질특성을 조사하여 기능성 식품 개발을 위한 기초 자료를 제공하고자 하였다. 아로니아 착즙액을 물 양 대비 0, 2, 7, 12%를 첨가한 어묵을 제조한 다음 일반성분, 산도, 당도, pH, 색도, 절곡검사, 조직감, 관능적 특성을 평가하였다. 첨가구의 일반성분은 대조구와 차이는 없었으며, 시판어묵과는 유의적인 차이가 있었다(p<0.05). 시판어묵, 대조구 및 첨가구의 산도는 0.10-0.11%, 당도는 2.77-3.10 °Brix로 첨가구의 경우 아로니아 착즙액의 첨가량이 증가함에 따라 높아지는 경향이었고, pH는 6.44-7.11으로 아로니아 착즙액의 첨가량 증가에 따라 감소하는 경향을 나타내었다. 첨가군의 L 값과 b 값은 첨가량이 증가함에 따라 낮아졌으며, a 값(redness)은 높아지는 경향을 나타내었다. 절곡검사 결과는 아로니아 착즙액의 첨가유무와 첨가량에 관계없이 모두 AA로 측정되었고, 어묵의 조직감은 강도(strength), 경도(hardness)와 씹음성(chewiness)의 경우 아로니아 착즙액의 첨가량이 증가함에 따라 높아졌으며, 시판어묵과 대조구는 유사하게 측정되었다. 응집성(cohesiveness)은 시판어묵, 대조구 및 첨가구간에 차이는 나타나지 않았다. 총 폴리페놀 함량 측정결과 시판어묵과 대조구는 비슷하게 측정되었고, 첨가군은 착즙액의 첨가량에 비례하여 증가하였다. DPPH radical 소거능 측정결과 대조구에 비해 첨가구의 IC50 값이 낮게 측정되어 아로니아 착즙액의 첨가량이 증가할수록 항산화활성도 증가하는 것으로 나타났으며, 시판어묵의 경우 12% 첨가구와 유사한 DPPH 소거능을 나타내었다. 관능평가는 색, 향, 조직감, 맛, 전반적인 기호도 평가에서 7% 첨가구와 시판어묵이 높은 점수를 받았다. 이상의 결과를 통하여 아로니아 착즙액을 첨가하여 튀김어묵을 제조할 때 첨가하는 아로니아 착즙액의 양은 7%가 가장 적합할 것으로 사료된다.

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 것으 로 나타났다. 강황 분말을 첨가한 어묵의 기계적 texture 특성은 강황 분말 첨가량이 증가할수록 경도(hardness), 응 집성(cohesiveness), 탄력성(springiness)은 증가하였고, 검 성(gimminess)과 파쇄성(brittleness)은 감소하였다. 관능검 사 결과로 색깔(color), 향미(flavor), 조직감(texture), 맛 (taste), 전체적인 선호도(overall acceptance)는 3%의 첨가군 이 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.

This study was conducted to promote the use of fish paste with shrimp powder as a food. The tested shrimp powder concentrations were 0, 3, 5, and 7%. The pH of the samples ranged from 6.80 to 6.95, and their moisture contents ranged from 70.15 to 70.75%. Their L values decreased as their concentrations increased, and their a and b values increased. The folding test for all the test samples showed AA, which indicates good flexibility. In the texture meter test, the hardness, cohesiveness, and springiness increased when the shrimp powder concentration increased. The gumminess and brittleness of the fish paste was reduced, however, with the addition of shrimp powder. In the sensory evaluation, the fish paste prepared with 5% shrimp powder were preferred most. These results suggest that shrimp powder can be applied to fish paste to achieve high quality and functionality.

In the grilled fish paste stored at , the total aerobic bacterial counts were effectively reduced by 2.5 kGy or more. In the samples stored at , the total aerobic bacterial counts of the samples irradiated at 7.5 kGy were below to the limit of detection (2 log CFU/g). The TBA values of the irradiated samples were considerably higher than those of the controls but not proportional to the irradiation dose. It is apparent that an irradiation treatment causes very little textural degradation and the sensorial quality of the sample was maintained by an irradiation at 7.5 kGy or more.