• Food Science of Animal Resources
• /
• v.34 no.1
• /
• pp.122-126
• /
• 2014

This study was performed to evaluate the effects of chicken breast meat on the quality of mackerel sausages. The mackerel sausages were manufactured by additions of 5%, 7%, and 10% of chicken breast meat. The lightness of mackerel sausages showed no significant differences between the control and addition groups. The redness increased in a dose-dependent manner, but the yellowness decreased significantly with the addition of 7% chicken breast meat (p<0.05). The whiteness value of mackerel sausage added with 7% chicken breast meat was significantly higher than those of the other groups (p<0.05). In texture analysis, the hardness and adhesiveness of the mackerel sausage added with 5% of chicken breast meat showed no significant differences as compared to the control. However, the mackerel sausages added with 7% and 10% of chicken breast meat showed a dose-dependent decrease. The gel strength of the mackerel sausage added with 5% chicken breast meat was not significantly different from the control, but the addition of 7% and 10% chicken breast meat reduced the gel strength of the mackerel sausage. In sensory evaluation, the mackerel sausages prepared with chicken breast meat have higher scores in smell, taste, texture, hardness, chewiness, and overall preference as compared to the no addition group. Therefore, these results suggest that the optimal condition for improving the properties within mackerel sausages was 5% addition of chicken breast meat.

• Journal of Animal Science and Technology
• /
• v.53 no.6
• /
• pp.541-548
• /
• 2011

This study was performed to determine the effects of dietary Kocetin$^{TM}$ on meat quality of Hanwoo (Korean native cattle) beef. Samples were divided into 3 groups; dietary supplementation of Kocetin$^{TM}$ (KC) at 21 and 42 ppm (n=4), and non-supplemented control (n=3) for 75 days. The KC composed of 10% of quercetin which was a bioactive compound. After slaughtering the Hanwoo, each loin from 10 Hanwoos were obtained and analyzed. Dietary supplementation of KC did not affect the final pH, water holding capacity, drip loss, cooking loss, surface color, total phenolics content, radical scavenging activity, and sensory scores. Dietary quercetin also showed no difference in both TBARS and VBN values. Textural profile analysis results also showed no difference, except for adhesiveness and springness. Springness was significantly higher in loin from Hanwoo treated by dietary KC at 42 ppm when compared to control. Results revealed that the loin from Hanwoo fed dietary KC up to 42 ppm (approximately 4.2 ppm of quercetin) was not sufficient to have clear positive effects on meat quality of loin.

• Korean journal of food and cookery science
• /
• v.32 no.2
• /
• pp.157-167
• /
• 2016

Purpose: The objective of this study was to investigate the quality characteristics of pork and beef meat according to species (pork: modern genotype pork, Korean native black pork; beef: Holstein, Korean native cattle) and cuts (pork: shoulder, ham, loin; beef: loin, tenderness, round). Methods: The moisture content, protein content, fat content, ash content, fatty acid compositions pH, whater holding capacity, cooking loss, shear force, color, and sensory characteristics were measured in triplicate. Results: The moisture content, pH, cooking loss, and shear force of modern genotype pork were significantly higher than the Korean native black pork; in addition, the moisture content of loin was significantly higher than shoulder and ham. The fatty acid compositions for different parts of pork showed no significant differences. Among the sensory characteristics, the parameters of pork were not significantly different. The moisture content of Holstein was significantly higher than Korean native cattle. The fatty acid composition of beef could not confirm the specific differences. Water holding capacity of Korean native cattle was higher than Holstein, while cooking loss of Korean native cattle was lower than Holstein. Overall acceptability scores of Korean native cattle was higher than Holstein. Conclusion: The study results of several parameters in selected raw meat samples provide useful information for developing new strategies to improve the quality of meat products consumption.

• Food Science of Animal Resources
• /
• v.33 no.1
• /
• pp.119-124
• /
• 2013

This study was conducted to investigate meat quality and sensory characteristics between castrated and non-castrated dairy goats. Dairy goat of Saanen breeds was slaughtered at an age of 6 mon. Then, characteristics of dairy goat meat were analyzed to chemical compositions, collagen content, pH, meat color, cooking loss, water-holding capacity, shear force, protein solubility, and myofibrillar protein fractions by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE). Also, odor from dairy goat meats was analyzed by sensory evaluation and volatile substances by gas chromatography-mass spectrometry (GC-MS). As a result, the chemical compositions and physicochemical characteristics were not significantly different between castrated and non-castrated dairy goats meat. Also, there is no difference protein solubility (sarcoplasmic, myofibrillar and total protein) and protein fraction by SDS-PAGE. Sensory evaluation results in odour scores are highly (p<0.05) non-castration dairy goat meat better than castration. As a result, overall palatability was higher (p<0.05) in castrated goat meat when compared with non-castrated one. The indole and octadecanoic acid by GC-MS based on sensory evaluation results were only detected in non-castrated dairy goat meat. Therefore, distribution for goat meats castrated compared to non-castrated dairy goat meat is expected to be able to get a good response to the Korean consumer.

• Food Science of Animal Resources
• /
• v.32 no.4
• /
• pp.414-427
• /
• 2012

Carcass characteristics and meat quality traits as a function of endpoint months of slaughter age (26 vs 32 mon) and chiller ageing (1 vs 10 d) were evaluated for m. longissmus of 26 Hanwoo steers fed with commercial diets including whole crop barley silage. Totally twenty six Hanwoo steers for 6 mon of age that were fed until 26 mon of age constituted the short term-fed group and fed until 32 mon of age constituted long-term fed group. Carcasses were chilled for 24 h and were graded. Strip loin samples were divided into two age groups (1 d and 10 d). Long-term feeding increased carcass weight, rib-eye area, yield grade, marbling score, firmness and quality grade of the meat. The feeding for 32 mon produced tender, juicy meat (p<0.01) with lower cooking loss and higher rating score (p<0.05) than short term feeding, while other quality traits were not influenced by the length of feeding. Intramuscular fat content and oxidative stability (TBARS value) were significantly (p<0.05) higher in beef from long-term feeding however the length of feeding did not alter the fatty acid composition. Chiller aging reduced instrumental tenderness (WBSF value), improved color, sensory tenderness, acceptability and rating of beef. The results of the present study mirrors that Hanwoo steers until 32 mon of age overall improved carcass traits and palatability compared to that for 26 mon. However, from the viewpoints of economical and environmental aspects, cost of the additional feeding for 6 mon for value-adding of eating quality was relatively high and the effects in turn were limited.

• Food Science of Animal Resources
• /
• v.33 no.1
• /
• pp.103-108
• /
• 2013

This study was carried out to observe the effect of superheated steam combined with oven heating on the physico-chemical and sensory properties of chicken meat. Specially, chicken breasts and thighs were heated for 40 min in various heating formulations such as oven heating, superheated steam heating or a combination of two kinds of heating. In the physical properties measurement, the shear force was increased as superheated steam heating time and chicken thighs were higher than chicken breasts in all treatments (p<0.05). The highest level of water holding capacity was solely superheated steam treated chicken for 40 min (p<0.05). The $L^*$ value was decreased but $a^*$ value or $b^*$ value were increased after cooking. Chicken breast exhibited a higher colour value than chicken thigh. Superheated heating was effective to reduce heating loss as 22.64% (p<0.05). However, pH was not different depending on the heating formulation or part of the chicken meat (p>0.05). In the sensory test, the combination of 10 min oven heating and 30 min superheated steam heating was effective to create a good flavour of chicken meat. In this study, an optimum formulation was developed which was a combination of 10 min oven heating and 30 min superheated steam heating. It was more effective to improve the quality of chicken meat than the single heat treatment of chicken meat.

• Food Science of Animal Resources
• /
• v.41 no.2
• /
• pp.224-236
• /
• 2021

The objective of this study was to investigate the effects of quality grade (QG) on the physicochemical composition and eating quality attributes of pork belly and shoulder butt. Seventy-two growing-finishing crossbred pigs were slaughtered and their carcasses were graded according to the Korean pork carcass grading system. Based on the grading criteria, the carcasses were classified into: QG 1+ (n=23), QG 1 (n=23) and QG 2 (n=26) groups. At 24 h postmortem, belly and shoulder butt cuts were collected from the QG groups and used for analysis of meat quality, flavor compounds and eating quality attributes. Results showed that the variation in fat content among QG was approximately 2% in the both cut types. The QG showed no effects on all the quality traits: cooking loss, pH and color of the belly or shoulder butt (p>0.05). Thirty-five flavor compounds comprising mainly fatty acids oxidation/degradation-derived products (e.g., aldehydes) and only few Maillard reaction-derived products (e.g., sulfur-and nitrogen-containing compounds) were identified. However, the QG showed a minor effect on the flavor profiles in both the belly and shoulder butt. Regarding the sensory quality, no effects of the QG were found on all the eating quality attributes (color, flavor, juiciness, tenderness and acceptability) for both the belly and shoulder butt cuts (p>0.05). Thus, it may be concluded that the current pork carcass grading standards do not reflect the real quality and value of the belly and shoulder butt cuts.

• Food Science of Animal Resources
• /
• v.33 no.2
• /
• pp.287-293
• /
• 2013

This study was conducted to investigate the effect of quality grade on the physicochemical and sensory properties of Hanwoo beef on the basis of four quality grades (grade $1^{{+}{+}}$, $1^{+}$, 1, and 2). Significantly decreased levels of myoglobin content (from 12.73 mg/g to 7.90 mg/g) and Warner-Bratzler shear force (WBs) (from 28.01 kg to 14.03 kg) were found with reduction in quality grade (p<0.05). In contrast, increasing quality grade correlated with significant increase in crude fat contents (from 8.18% to 19.55%). Crude fat contents showed a negative correlation with moisture content (r=-0.966), myoglobin content (r=-0.998), and WBs (r=-0.969). In sensory evaluation experiments it was revealed that quality grades were associated with significantly altered (all p<0.05) flavor, taste, juiciness, tenderness, and overall acceptability. Moisture contents showed negative correlation with taste (r=-0.969) and overall acceptability (r=-0.988). Crude fat contents showed significant correlation with taste (r=0.971), tenderness (r=0.983) and overall acceptability (r=0.968). WBs showed negative correlation with taste (r=-0.957) and overall acceptability (-0.978). The marbling score of fresh meat showed significant correlation with taste (r=0.958), juiciness (r=0.953), and overall acceptance of cooked meat. These results could be used as a fundamental dataset to evaluate the effect of quality grade on the physicochemical and sensory characteristics of Hanwoo beef.

• Food Science of Animal Resources
• /
• v.30 no.3
• /
• pp.419-426
• /
• 2010

This study was conducted to investigate the effect of different castration ages on meat quality and sensory properties of Korean native black goats over 410 days. For the experiment, 32 heads of goat (eight heads/4 treatment) were subjected to either a control (5 month non-castration), T1 (7 month castration), T2 (5 month castration) or T3 (3 month castration). The total weight gain for Korean native black goats was highest in the T2 group after feeding for 410 days and the weight gain/day tended to be similar to the total weight gain. The total feeding amounts were lowest (410.82 kg) in T3; however, the feed intake ratio was 16.39 in T2, indicating that it had the best feed efficiency among groups. The cooking loss and drip loss of the Korean native black goats was highest in the control, being 35.53% and 2.08%, respectively (p<0.05), while the total cholesterol of the treatments was higher than that of the control (p<0.05). Moreover, the overall sensory evaluation of the treatment groups was low, indicating that there was more meat flavor when compared to the controls in terms of juiciness, tenderness, flavor, texture, black goat off-flavor and overall evaluation (p<0.05). T2 was found to have the best meat flavor upon sensory evaluation. Additionally, the meat color of the control showed the highest $L^*$ value and Hue value, while T3 showed the highest $a^*$ value (3.61) and T2 showed the highest $b^*$ value and Chroma. The composition of fatty acids was 53.76% oleic acid in T2, while the amounts of Mono-unsaturated fatty acid (MUFA) were highest in T1 and T2 (p<0.05). As a result, the MUFA/SFA ratios of T1 and T2 were higher than those of the control (p<0.05). In conclusion, it is most advantageous to castrate Korean native black goats at the age of 5 months for the best performance and meat quality.

• Korean journal of food and cookery science
• /
• v.27 no.3
• /
• pp.95-104
• /
• 2011

This study was conducted to investigate the effect of red wine on the quality properties and sensory score of seasoned pork meat. Pork meat was treated with 25% water (control), 20% water and 5% red wine (RW5), 15% water and 10% red wine (RW10), or 10% water and 15% red wine (RW15). The moisture, crude protein, crude fat, $L^*$ value, springiness, cohesiveness, gumminess, chewiness, and VBN content were not significantly different among the samples. Cooking yield, moisture retention, and fat retention were significantly higher in the RW5, RW10, and RW15 (p < 0.05) compared to those in the control. The $a^*$ value of RW5 was the highest among the samples, and the $b^*$ value increased significantly in the control and RW5 (p < 0.05). The hardness of the control was the highest among all samples (p < 0.05). The pH was significantly lower in RW5, RW10 and RW15 (p < 0.05) compared to that in the control. The TBARS value and total bacteria were significantly lower in RW5, RW10, and RW15 (p < 0.05) compared to those in the control. Adding red wine altered the fatty acid and free amino acid of cooked seasoned pork. These results suggest the possibility that red wine could be used an additive to improve the quality of cooked seasoned pork.