• 한국식품영양과학회지
• /
• 제26권3호
• /
• pp.465-467
• /
• 1997

The comparative effects of ozone treatment and gamma irradiation on the sterilization, physicochemical properties and sensory quality of red pepper powder were investigated. As for the sterilization of microorganisms, 7.5~10 KGy of gamma irradiation completely eliminated the coliforms, yeast and molds, and total aerobic bacteria. On the other hand, ozone treatment failed to eliminate the highly contaminated microbial load, especially total aerobic bacteria. The physicochemical properties including capsaicin, capsanthin, browning, fatty acid compositions and sensory quality were not significantly changed by gamma irradiation up to 10 kGy, whereas ozone treatment caused significant changes in fatty acid compositions and destruction of natural pigments (p<0.05). The above results led us to conclude that gamma irradiation was more effective than ozone treatment for the sterilization and maintenance of physicochemical and sensory qualities of red pepper powders.

• 한국식생활문화학회지
• /
• 제30권5호
• /
• pp.650-655
• /
• 2015

Bamboo sprout powder was added to rice cake in an effort to improve the quality and functional properties of dough. The contents of crude protein and carbohydrates increased as the amount of bamboo sprout powder increased, whereas moisture contents decreased. According to increasing contents of bamboo sprout powder, total amino acid contents significantly increased. Hunter's L value decreased as contents of bamboo sprout powder increased, whereas sucrose contents increased. Addition of bamboo sprout powder to rice cake increased dietary fiber contents. Sensory scores of rice cake containing 90 g of bamboo sprout powder were the highest of all rice cakes tested. According to the results, adding bamboo sprout powder could improve the quality and sensory characteristics of rice cake.

• 한국식생활문화학회지
• /
• 제27권1호
• /
• pp.57-65
• /
• 2012

The purpose of this study was to determine the optimum amounts of vegetables to use for flavoring chicken head soup base. The effects of the amounts of ginger and onion on the sensory properties of chicken head soup base were examined, and the optimum amounts were determined using response surface methodology. Sensory properties that were evaluated were yellowness, turbidity, bloody flavor, chicken-brothiness, organ meat-like flavor, and sweet taste. The increased amounts of ginger and onion led to a decrease in bloody flavor and organ meat-like flavor. The optimum levels of ginger and onion were determined to be 40g and 50g, respectively. Chicken head soup base prepared with optimum amounts of vegetables contained more arginine, tryptophan, inosine monophosphate (IMP), and hypoxanthine than plain chicken head soup base. It also had less hexanal, which is related to fat rancidity.

• 한국식품영양과학회지
• /
• 제45권4호
• /
• pp.557-561
• /
• 2016

초석잠 뿌리 분말을 이용한 유동식 개발을 위해 초석잠 뿌리 분말을 첨가(0, 10, 20, 30%)한 수프를 제조하여 이화학적 및 관능적 품질 특성을 알아보았다. 수프의 수분 함량 및 점도는 초석잠 첨가량이 증가할수록 낮은 값을 나타내었다. 수프의 초석잠 뿌리 분말 첨가량이 증가할수록 pH는 감소하였고 산도는 증가하였다. 수프의 색도는 초석잠 뿌리 분말 첨가량이 증가할수록 L값은 감소하였고, a값과 b값은 유의적으로 증가하는 경향을 나타내었다. 수프의 특성 차이 검사에서 색의 강도, 초석잠의 향은 분말 첨가량이 많아질수록 증가하였다. 반면 점도, 느끼한 맛은 분말 첨가량이 많아질수록 낮아지는 경향을 나타내었다. 수프의 기호도 검사에서 외관, 향미, 맛, 전반적인 기호도에서 초석잠 뿌리 분말 20% 첨가군이 가장 높은 값을 나타내었다.

• 한국식품조리과학회지
• /
• 제20권5호
• /
• pp.520-528
• /
• 2004

The effects of the substitution of sugar alcohol for sugar on the sensory properties of mulberry rice cake, 'Bbongseolgy', were evaluated in two phases. First, the relative sweetness of xylitol, erythritol and palatinose to the sucrose in the food systems were examined with paired comparison tests. Second, the sensory properties of the mulberry rice cake containing xylitol, erythritol and palatinose substitution for sugar at a sweetness level equal to sucrose were studied. Sensory analysis for the mulberry rice cake characteristics was conducted and consumer acceptability tests were performed. The physical properties of mulberry rice cake were also examined. The relative sweetness of xylitol, erythritol and palatinose, compared to sucrose, in the solid model food system were 1.00, 0.63 and 0.42, respectively. This result showed that the relative sweetness of xylitol, erythritol and palatinose to sugar was slightly lower than those in the liquid model food system, in which flavor did not influence the sweetness. Mulberry rice cake with erythritol or palatinose had very similar characteristics, with lower fracturability and tenderness, and higher moistness, compactness and chewiness compared to that with sucrose or xylitol. Mulberry rice cake with xylitol was significantly the most fracturable, grainy, and driest, and the least adhesive, among the samples. The consumer test showed no difference in overall acceptability among the samples and consumers perceived differences only in moistness, coarseness and compactness among the samples. Mulberry rice cake with erythritol was the most favored in many characteristics. These results indicate that erythritol substitution for sugar inmulberry rice cake is suitable as a low-calorie rice cake with beneficial functions to improve in the health and texture of the rice cake.

• 한국축산식품학회지
• /
• 제32권5호
• /
• pp.553-560
• /
• 2012

This study was conducted to compare the physicochemical and sensory properties of yogurt containing nanopowdered peanut sprouts (NPPS) and powdered peanut sprouts (PPS) at different concentrations (0.05-0.20%, w/v) during storage at $4^{\circ}C$ for 16 d. The pH values of NPPS (0.05-0.20%, w/v)-added yogurt were lower than those of PPS-added yogurt. The antiradical scavenging activity and LAB counts were significantly higher in NPPS-added yogurt than in PPS-added yogurt during the storage period of 16 d (p<0.05). Higher concentrations (0.15, and 0.20%) NPPS-added yogurt showed greater antiradical scavenging activity. The LAB counts were ranged from $9.00{\times}10^8$ to $1.10{\times}10^9$ and $1.30{\times}10^9$ to $9.10{\times}10^8$ CFU/mL in 0.05% and 0.20% NPPS-added yogurts, respectively. In sensory testing, 0.05 and 0.10% NPPS-added yogurt showed similar results to the control in whey-off, grainy texture, and overall acceptability. Yellowness and astringent scores increased with increasing addition of NPPS or PPS to the yogurt irrespective of its storage times. Peanut and beany flavors were lower during the storage for 0.05 and 0.10% NPPS-added yogurt. Based on the data obtained from the present study, it was concluded that 0.05 and 0.10%, w/v of NPPS could be used to produce NPPS-added yogurt without significant adverse effects on the physicochemical and sensory properties, but with an enhanced functional value added to the yogurt.

• 한국축산식품학회지
• /
• 제33권1호
• /
• pp.9-15
• /
• 2013

A study was conducted to examine the physicochemical and sensory properties of milk supplemented with nanopowdered peanut sprouts (NPPS) at different concentrations (1, 3, 5, 7, and 9%, w/v) during the storage at $4^{\circ}C$ for 16 d. The size of NPPS ranged from 300-350 nm as observed by the particle size analyzer. The pH values of all samples ranged from 6.8 to 6.6 during the storage of 16 d. In color, the $L^*$ value of milk samples were not remarkably influenced by NPPS supplementation, whereas the $b^*$ and $a^*$ values significantly increased with the NPPS supplementation at all concentrations at 0 d storage, due to the original yellow color of NPPS powder (p<0.05). DPPH study revealed that higher antioxidant activity of milk supplement with higher concentrations of NPPS. TBARS value found to lower at the lower concentrations (1 and 3%, w/v) of NPPS supplementation. The sensory test revealed that the overall acceptability scores of NPPS supplemented milk samples (1 and 3%, w/v) were quite similar to control throughout the storage period of 16 d. Based on the data obtained from the present study, it was concluded that the concentrations (1 and 3%, w/v) of NPPS could be used to produce NPPS-supplemented milk without significant adverse effects on physicochemical and sensory properties, and enhance functional components from the supplementation.

• 한국식생활문화학회지
• /
• 제21권2호
• /
• pp.171-178
• /
• 2006

Tarakjuk with different amylose content was made up using roasted rice flours that consisted of the highest enzyme-resistant starch (RS), while differential scanning calorimetry (DSC) was also utilized to measure the gelatinization temperature of these roasted rice flours in order to establish cooking temperature of tarakjuk. The following qualities of tarakjuk with different amylose content were studied: color, viscosity, spreadability, starch fractions involving total starch (TS), rapidly digestible starch (RDS), slowly digestible starch (SDS) and RS, in vitro starch digestibility (IVSD) and sensory properties. During experimentation, it was found that as the amylose content of the rice flour decreased, the L value of tarakjuk decreased, whereas a value increased significantly (p<0.05). Also, while viscosity showed to increase significantly (p<0.05), on the opposite end, the property of spreadability decreased. TS ranged from $15.95{\sim}17.31%$, RDS $9.36{\sim}10.16%$, SDS $5.46{\sim}6.91%$ and RS $0.33{\sim}1.07%$, on a dry basis. Although the amylose content of rice flours decreased, IVSD increased, however showing no significant difference. When testing the sensory properties of tarakjuk, color and viscosity increased, whereas clumpiness decreased. Ilpum tarakjuk showed the highest score for nutty taste and overall acceptance levels. In fact a high correlation was shown between nutty taste and overall acceptance level (p<0.01), which leads one to believe that nutty taste is a prime factor that greatly influences overall acceptance. Furthermore, viscosity was positively correlated with both a and b values, however negatively correlated with L value (p<0.05). Moreover, roasted nutty taste and overall acceptance were positively correlated with a value (p<0.05), respectively. In conclusion, the above results suggest that tarakjuk could be made by choosing the appropriate rice flour based on the nutritional or sensory purpose.

• 한국축산식품학회지
• /
• 제31권4호
• /
• pp.521-529
• /
• 2011

We evaluated the effects of dietary fiber extracted from brown rice on the quality of reduced-fat emulsion sausage. Reduced-fat emulsion sausage was supplemented with brown rice fiber at levels of 0, 1, 2, 3, and 6%. Adding different levels of brown rice fiber affected the proximate composition of the reduced-fat emulsion sausages (p<0.05), except for protein content. Adding different levels of brown rice fiber influenced the physicochemical properties of the reduced-fat emulsion sausages. The cooking yield, emulsion stability, textural properties, and viscosity of the reduced-fat emulsion sausages containing brown rice fiber improved with increases in added brown rice fiber (p<0.05). The reduced-fat emulsion sausages containing 1-3% brown rice fiber generated sensory evaluation scores similar to those of the high-fat sausage control. These results indicate that reduced-fat emulsion sausages with 1-3% added brown rice fiber had the most acceptable sensory properties and highest quality characteristics compared to the others.

• 한국식품조리과학회지
• /
• 제16권1호
• /
• pp.75-83
• /
• 2000

The effects of salting methods on sensory and microbiological properties of Kakdugi were evaluated during fermentation at 10$\^{C}$ for up to 52 days. Kakdugi samples were prepared by 4 different salting methods at the final salt concentration about 1.5%, which was appropriate for organoleptic quality. The salting methods for radish cubes(2cm size) of Kakdugi included; 1) Treatment S-1: spraying dry salt uniformly onto the radish cubes, at the concentration of about 1.5%(w/w) and cured for 1 hr, 2) Treatment S-5: spraying dry salt uniformly onto the radish cubes, at the concentration of about 1.2%(w/w) and cured for 5 hr, 3) Treatment B-1: brining radish cubes in a 8.5%(w/v) salt solution and cured for 1 hr, 4) Treatment B-5: brining radish cubes in a 4.0%(w/v) salt solution and cured for 5 hr. During the early stage of fermentation, sensory test showed higher scores in the overall acceptability of Kakdugi prepared with salting methods S-1 and S-5 than those with B-1 and B-5. However, the trend of acceptability has been reversed by the treatments B-1 and, more notably, by B-5 at the later stage of fermentation. The counts of lactic acid bacteria increased remarkably and then decreased gradually after the optimum ripening period. The major lactic acid bacteria isolated and identified from Kakdugi were Pediococcus, Streptococcus, Leuconostoc, and Lactobacillus.