This study was conducted on four types of laver soup prepared using recipes from Gangwon-do (GW), Gyeongsangnamdo (GN), Jeollanam-do (JN), and the media (MD). Salinities, soluble solids, free amino acids, color values, turbidities, and pH values of soups were measured, and sensory evaluations were done. pH values were significantly higher for GW and GN recipes than the JN and MD recipes (p<0.05). The salinities of JN and MD were significantly higher than those of the other soups (p<0.05). Regarding soluble solids, JN had the highest at 2.64oBrix, whereas GW had the lowest at 0.86 °Brix (p<0.05). GW and JN had higher concentrations of valine, phenylalanine, and glutamic acid (p<0.05). JN had significantly higher redness (a) than the other soups but significantly lower lightness (L) and yellowness (b) (p<0.05). Regarding transmittance, GW had a significantly higher value (67.67%T) than the other soups. JN and MD had higher acceptability results than GW or GN in terms of flavor, mouthfeel, and overall acceptability. Sensory intensity evaluations revealed that JN and MD had higher “soy sauce aroma” and “saltiness” and a greater “broth turbidity” than the other soups. These results indicate that the physicochemical and sensory characteristics of regional laver soups differ.

This study investigated the quality characteristics of madeleines prepared using varying amounts of roasted black soybean flour (RBF). The RBF was used to substitute 0% (control group), 20% (RBF-20 group), 40% (RBF-40 group) and 60% (RBF-60 group) of weak flour (WF) in the manufacture of madeleine. The substitution of WF with RBF showed decreased the pH but increased the sugar concentration of the batter (p<0.01). Low lightness (L) and low yellowness (b) were observed in the experimental groups at high ratios of RBF substitution (p<0.05). The experimental groups of madeleines showed higher hardness and chewiness than the control group (p<0.001). The principal component analysis of the RBF- 60 experimental group, which had the highest proportion of RBF, showed that it had relatively strong characteristics with respect to “darkness”, “soybean odor”, “sesame odor”, “grains odor”, “savory flavor”, “sweetness”, “black soybean taste”, and “moistness”. The acceptance test results, showed that the RBF-20 experimental group was similar to the control group with respect to “odor acceptance”, “taste acceptance”, and “texture acceptance”. Thus, this study confirmed the possibility of using RBF for the preparation of madeleines.

In this study, the authors investigated the quality characteristics of convenient rice porridge made from powder (PR) and half-rice (HR) sized freeze-dried cooked rice using Samgwang and Jinsumi rice. The hydration properties of the freeze-dried cooked rice and the color, viscosity, spreadability, and sensory evaluation of porridge were measured. PR showed significantly higher water-binding capacity, solubility, and swelling power than HR for both varieties (p<0.05). As a result of the quality characteristic of the porridge, PR showed significantly higher lightness, redness, yellowness, viscosity, and spreadability than HR (p<0.05). Acceptance testing showed that HR had significantly better results for all acceptance attributes than PR (p<0.05). Jinsumi HR showed better consumer acceptance for taste, texture, and overall acceptability than Samgwang HR (p<0.05). Intensity evaluations of sensory properties revealed that the Samgwang PR was more spreadable but was less chewy than Samgwang HR. Furthermore, Jinsumi HR had higher transparency, greater spreadability, and a better cooked-rice odor and savory taste than Samgwang HR (p<0.05). These results confirm that convenient porridges can be produced using freezedried cooked rice.

In this study, when manufacturing Yakgwa, 0, 25, or 50% of embryonic rice flour (ERF) was substituted for wheat flour (WF) to make the dough. After making Yakgwa by hot air frying (HF) or deep-fat frying (DF) methods, physicochemical characterization and acceptance tests were conducted. ERF had a higher water-binding capacity and a lower fat-binding capacity than WF (p<0.05). Yakgwa prepared by HF had lower crude fat contents, peroxide values, and expansion rates, but higher hardnesses, lightnesses, and rednesses (p<0.05) than that prepared by DF. Higher ERF substitution ratios reduced acid values and expansion rates and increased hardness (p<0.05). Acceptance testing showed 0% ERF Yakgwa prepared by HF had a significantly higher acceptance than Yakgwa prepared by DF. HF was found to have a positive effect on product acceptability. Yakgwa prepared with the DF method by substituting WF with ERF resulted in better flavor and overall acceptability than Yakgwa prepared with WF alone (p<0.05).

This study investigated the physicochemical properties and acceptability of yellow layer cake prepared using various levels of wet-milled rice flour (RF). RF was used to substitute 0% (control group), 15% (RF-15 group), 30% (RF-30 group) and 45% (RF-45 group) of wheat flour (WF) to manufacture yellow layer cakes. The substitution of WF with RF showed no significant effect on the pH but decreased the specific gravity and viscosity of the batter. Baking loss rates ranged from 4.65% to 5.03%, showing no significant difference among samples. In the color measurement, the experimental groups showed higher redness (a) and yellowness (b) than the control group (p<0.05). The experimental groups showed lower gumminess and chewiness than the control group. According to the results of intensity measurement of sensory properties, the RF-30 and RF-45 groups showed stronger intensities for darkness, sweetness, moistness and softness than the control group. The acceptance test found that the RF-45 group had significantly higher or similar results for all acceptance attributes than the control group. These results indicate that RF addition as a replacement of WF at a ratio of 45% is optimal for producing yellow layer cakes.

우리나라 가정간편식 시장은 2011년 이후 급격히 성장하였으며, 2021년에는 7조 원까지 성장할 것으로 예상되고 있다. 레토르트와 냉동식품을 기반으로 형성된 가정간편식은 다양한 기술 발전에 따라 진공포장식품, 무균포장식 품, 진공동결건조식품 등 여러 형태의 제품으로 개발되고 있다. 그 중 진공동결건조식품은 식품 내 수분을 동결시 킨 후 진공펌프를 이용하여 승화의 원리로 수분을 제거한 식품으로 열에 민감한 영양소의 파괴를 최소화시키는 장 점이 있다. 또한 식품 고유의 향미 손실이 적고 복원성이 우수하여 최근 각광받고 있는 가공 기술이다. 한편 2000 년대 죽 전문점이 등장하면서 다양화되기 시작한 죽은 가정간편식 시장 발전에 따라 통조림이나 레토르트, 건조 죽 등으로 개발되어 활발히 소비되고 있다. 가정간편식 죽 제조에 가장 많이 사용되는 곡물인 쌀은 품종에 따라 영양성분 및 호화 특성이 다르게 나타나며, 이는 최종 죽 제품의 품질 특성에 영향을 미친다. 본 연구에서는 가정 간편식 죽 제조에 적합한 품종을 선정하고자 여러 쌀 품종 중 진수미와 삼광미의 이화학 특성을 비교 분석하였다. 두 품종의 일반성분, 색도, 수분흡수율, 수분결합력, 팽윤력, 그리고 용해도를 측정한 후 비교 분석하였다. 일반성 분 분석 결과, 수분, 조단백질, 조지방, 조회분의 함량의 유의적인 차이는 나타나지 않았다. 색도 측정 결과, 명도 (L), 적색도(a), 그리고 황색도(b) 모두 진수미가 삼광미에 비해 유의적으로 낮은 값을 나타내었다(p<0.01). 수분흡수 율 측정 결과, 삼광미가 20.14%, 진수미가 18.42%의 값을 나타냈으며 유의적인 차이는 없었다. 수분결합력 측정 결 과, 진수미가 170.86%, 삼광미가 164.45%로 진수미가 삼광미에 비해 유의적으로 높은 결과를 나타내었다(p<0.05). 팽윤력 측정 결과, 팽윤력은 진수미가 1.37%, 삼광미가 1.46%로 진수미가 삼광미에 비해 낮은 경향을 보였다. 용해 도 측정 결과, 진수미가 6.97%, 삼광미가 6.30%로 진수미가 삼광미에 비해 유의적으로 높은 값을 나타내었다 (p<0.05).

This study examined the quality characteristics of jelly prepared with green grape juice (GJ). The pH, oBrix value, color, texture, and sensory evaluation of the jelly were measured. The pH of the jelly significantly decreased with increasing amount of GJ over the range of 3.25-5.27. The oBrix value of the jelly showed a significantly higher result as the amount of GJ increased (p<0.001). Lightness (L) and redness (a) decreased with increasing amount of GJ, and yellowness (b) increased. In the texture measurement, the GJ-100 sample group with a high substitute rate of GJ showed high hardness, gumminess, and chewiness (p<0.001). The results of principal component analysis (PCA) showed that the sample groups with high GJ content were classified as having relatively strong yellowness, sweet aroma, metallic aroma, grassy aroma, sweetness, sourness, green grape skin taste, and astringency. In the acceptance test, the GJ-50 sample group was evaluated to be high in flavor (p<0.001) and overall acceptance (p<0.01). However, sample groups consisting of 50% or more GJ were evaluated to be significantly strong in terms of astringency. Therefore, further study needs to be conducted about improving astringency in the future.