Kim, Hyun-Jeong;Kim, Mi-Jin;Oh, Song-I;Jung, Young-Tae;Park, Soo-Kyoung;Lee, In-Seon
Journal of the Korean Society of Food Science and Nutrition
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v.40
no.1
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pp.102-109
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2011
Antioxidant and antibacterial activities of Phlomis umbrosa Turcz. (PU) ethanol extracts were investigated in vitro. Total polyphenols, flavonoids and FRAP values of PU extracts were $57.32{\pm}2.30{\mu}g$/mg, $21.44{\pm}2.52{\mu}g$/mg and 0.26 mmol $Fe^{2+}$/g, respectively. The PU extracts also showed strong DPPH scavenging activity and antibacterial effects against Staphylococcus aureus. In addition, the DPPH scavenging effect of the seasoning sauces was increased by the addition of PU extracts. This study was also conducted to evaluate the quality characteristics of seasoned pork treated with PU extracts during storage at $4^{\circ}C$ for 21 days. Seasoned pork was produced containing 0, 0.5, and 1% PU extracts and 0.1% BHA. The total bacteria and TBARS values of seasoned pork added with PU were decreased compared to the control, whereas coliform bacteria were not detected after longer storage periods. With regards to sensory evaluation, seasoned pork treated with 0.5% PU had higher juiciness, flavor and overall acceptability compared to seasoned fork. These results suggest the possibility of manufacturing seasoned pork with PU extracts for the improvement of shelf-life and quality.
Park, Kyung-Sook;Lee, Kyung-Soo;Choi, Young-Jun;Park, Hyun-Suk;Moon, Yoon-Hee;Jung, In-Chul
Korean journal of food and cookery science
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v.27
no.3
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pp.95-104
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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.
Journal of the Korean Society of Food Science and Nutrition
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v.44
no.2
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pp.242-249
/
2015
This study examined the antioxidant and antimicrobial activities of 70% ethanol extracts and water extracts of Allium hookeri root. We evaluated the effects of water extracts of A. hookeri root on storage of seasoned pork added with water extracts at $4^{\circ}C$ for 21 days in order to evaluate its potential as a functional food material. A. hookeri root water extracts displayed antioxidant activities (total polyphenol content and DPPH and ABTS radical scavenging activities) that were superior to those of 70% ethanol extracts. The 70% ethanol extracts and water extracts of A. hookeri root showed antimicrobial activities against food-borne Staphylococcus aureus bacteria that were about 1/400 times greater than that of vancomycin. Chemical composition analysis was conducted on pork seasoned with sauce containing 5%, 10%, and 15% water extracts. Moisture and crude ash contents significantly decreased as the amount of water extracts increased (P<0.05), and the highest crude protein content was in the 10% group. Acidity of seasoned pork increased proportionally in the early stages of storage, whereas it significantly decreased as the amount of water extracts increased after day 12 (P<0.05). Although the total number of bacteria in seasoned pork continuously increased during storage, growth of bacteria was significantly restricted as level of A. hookeri root water extracts increased (P<0.05). In the sensory evaluation, pork seasoned with 10% A. hookeri root water extracts showed the highest scores for taste, texture, and overall acceptance (P<0.05). In summary, A. hookeri water extracts display antioxidant and antimicrobial activities that can improve quality characteristics of seasoned pork and have potential as natural preservatives to restrict bacteria growth. Regarding the amount of extracts, 10% was determined to be the most appropriate level to minimize changes in seasoned pork during storage and improve sensory quality.
This study was conducted to survey the perception of domestic consumers about traditional pork dishes, and to utilize the survey result as a basis for the development of processed pork products. A survey was conducted on 218 domestic consumers regarding the following: general questions, propensity and preference to consume pork dishes, pork dishes feasible for export, and the types and problems of processed products feasible for export. The results of the survey showed that the respondents consumed pork dishes 3-4 times a month on average and they appeared to consume the pork dishes most frequently in specialized restaurants. The highest preference was shown in Samgyeopasal gui (grilled pork belly) and Galbi gui (grilled pork rib) among the pork dishes, whereas the lowest preference was shown in Kkubdegi gui (grilled pork skin) and Gookbob (boiled rice and pork served in soup). When the type of processed pork products available according to pork dishes were analyzed, the result showed that Samgyeopasal gui (grilled pork belly) and Nirbiani (slices of roast, seasoned pork in width) could be developed as a frozen product, Geyook Bokeum (stir-fried spicy pork), Bulgogi (Korean-style barbecued pork), and Galbi jjim (braised short ribs) could be developed as a retort product, and that Bossam (boiled pork eaten with a salty sauce and wrapped in greens), Pyeonyuk (slices of boiled pork), Jokbal (pork trotters), and Sundae (kneading together seasoned mixture of vegetables and glass noodles stuffing it into casings made of hog intestines, which are then tied off at the ends and boiled) could be developed as a vacuum-packed product. When the survey concerning the problems expected in the development of processed products using pork dishes was conducted, the result showed that there could be a texture change issue for Galbi gui, Samgyeopasal gui and Nirbiani; a preservation issue for Bossam, Pyeonyuk; a safety issue for Bulgogi and Geyook Bokeum; a taste and flavor change issue for Geyook Bokeum and Sundae; and a packaging issue for Gookbob.
This study examined the microbiological quality of daycare center meals. Six menu items from five daycare centers in Daegu included uncooked processed foods (seasoned cucumber and lettuce salad), post-preparation after cooking processed foods (rolled omelet and seasoned soybean sprout), and cooking processed foods (panbroiled beef with oyster sauce and seasoned pork roast). Microbiological analyses were performed for the aerobic plate counts (APC), coliforms, and Escherichia coli. The analyses were conducted in July and November 2017. The mean APC and coliform count of seasoned cucumber decreased significantly from 4.71 log colony forming units (CFU)/g and 2.50 log CFU/g in July to 4.07 log CFU/g and 1.78 log CFU/g in November, respectively (P<0.01 and P<0.001). The APC of panbroiled beef with oyster sauce and seasoned pork roast were significantly lower in July (1.84 and 1.79 log CFU/g) than in November (2.41 and 2.28 log CFU/g) (P<0.001). The coliform counts of panbroiled beef with oyster sauce and seasoned pork roast were significantly greater in November (2.11 and 1.62 log CFU/g) (P<0.001). E. coli was not detected. Among the foods prepared using the three preparation processes, the post-preparation after cooking processed foods had the lowest microbial quality. The APC and coliform counts of cooking processed foods were satisfactory in July, with an acceptable rating for pan-broiled beef with oyster sauce in November. Time-temperature control and the prevention of cross-contamination are essential during meal production for food safety, regardless of the season.
This study was conducted to develop food for the elderly, which is easier to chew and swallow, using gelification. Various foods for the elderly with chewing and swallowing difficulties were used for sensory assessment. The sensory panel consisted of 10 dieticians (10 women) working in nursing care facilities. The sensory optimal composite recipes were determined by the central composite design (CCD). The optimum formulation of hot pepper paste stir fried pork calculated by the numerical and graphical method was 1.48 g of sugar and 18.97 g of hot pepper paste. The optimum formulation of seasoned spinach was 8.0 g of sesame oil and 5.41 g of soy sauce. Moisture content, hardness, and adhesiveness of hot pepper paste stir fried pork was 76.49%, 2.50, and -1.20, respectively. Moisture content, hardness, and adhesiveness of seasoned spinach was 83.48%, 2.27, and -1.17, respectively. This study provides the basic materials for the development of easily chewable and swallowable foods for the elderly, which can reduce the risk of food going down the wrong pipe, and the preference can be improved by eating solid food instead of porridge or liquid food. The development of food for the elderly, which takes the difficulties in chewing and swallowing among the elderly into consideration and reflects their preference and has sufficient amount of nutrients, is important to enable the elderly to enjoy their meals and it is one of the biggest challenges in Korea, as Korean society is aging rapidly.
Park, Young-Mi;Han, Byeong-Lyeol;Kim, Young-Joong;Yoon, Hye Hyun
Culinary science and hospitality research
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v.19
no.4
/
pp.1-12
/
2013
The purpose of this study was to find the effects of guava leaf powder as a natural tenderizing ingredient for low-fat pork seasoned with meat sauce, and to promote a consumer demand and practical use of low-fat pork. Moisture content, pH, color, texture, and sensory tests (quantitative descriptive sensory evaluations and acceptance) were conducted to the control and 5 samples of pork seasoned with 0.75, 1, 1.5, 2, 3% guava leaf powder) to determine the highest effectiveness on tenderizing pork. Moisture content and pH values were the highest in the samples with 1% and 1.5% of guava leaf powder added. L-value of cooked meat decreased, while a-value increased. In the texture test, most of the experiments showed the best values in the sample with 1.5% added. Based on quantitative descriptive sensory evaluations, the unpleasant smell of meat tended to decrease with more guava leaf powder, and the scores of the others were highest in the sample with 1.5% added. This sample also got the highest score in the acceptance test. These results can be used as primary data for research on the tenderizing effect of a functional ingredient and solutions to unbalanced consumption of pork.
Journal of Korean Society of Environmental Engineers
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v.33
no.3
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pp.196-201
/
2011
Emission from meat cooking may contribute to the concentration of the Particulate Matters(PM) in the city. This study is to investigate the particle size and the emission characteristics of particulate matters from pork and beef cooking. The chamber was installed for sampling of PM generated from pork belly and beef sirloin cooking including seasoned ones. Cascade Impactor and Portable Aerosol Monitor (PAM) were used to analyse the particle size distribution. At the result of the Cascade Impactor sampling, particulate matters from the pork cooking was higher than that of beef. The gravimetric concentration of PM according to the size was highest at the range of $1.95{\sim}3.2{\mu}m$ and the gravimetric concentration of PM from the non-seasoned meat was higher than that of the seasoned one. The emission factors from pork, pork seasoned, beef and beef seasoned were 1.36 g/kg, 1.03 g/kg, 1.23 g/kg, 0.92 g/kg respectively. To see the result of PAM sampling, the ranges of $1.6{\sim}2.5{\mu}m$ and $2.5{\sim}3.5{\mu}m$ were reveled as highest. The ration of $PM_{2.5}/PM_{10}$ from pork and beef was 0.56~0.58. The emission factors from pork, pork seasoned, beef and beef seasoned measured by PAM were revealed as 3.37 g/kg, 2.76 g/kg, 2.93 g/kg, 2.77 g/kg respectively.
Park, Kyung-Suk;Lee, Kyung-Soo;Park, Hyun-Sook;Choi, Young-Jun;Kang, Se-Ju;Yang, Jong-Beom;Hyon, Jae-Seok;Jung, In-Chul;Moon, Yoon-Hee
Journal of Life Science
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v.21
no.1
/
pp.74-80
/
2011
This study was carried out to investigate the effects of the addition of red wine on the quality characteristics and free amino acid content of seasoned pork meat. Seasoned pork meat was prepared using three variation: pork meat containing 25% water (T0), pork meat containing a combination of 20% water and 5% red wine (T1), pork meat containing a combination of 15% water and 10% red wine (T2), and pork meat containing a combination of 10% water and 15% red wine (T3). There were no significant differences in moisture, crude protein, crude fat, crude ash, a* value, rheological properties, pH, VBN content, saturated fatty acid or unsaturated fatty acid among T0, T1, T2 and T3. The L* and b* value of seasoned pork meat was higher in T2 and T3 than in T0 and T1 (p<0.05). The TBARS value was highest in T0 (p<0.05). The free amino acid content was higher in T2 and T3 than in T0 (p<0.05).
The seasoned pork loin manufactured using with seasoning sauce that were prepared with 3 different composites of medicinal plant extracts ($T-1{\sim}3$). The the quality characteristics were investigated during storage at $4^{\circ}C$ for 15 days. Sensory evaluation was higher in medicinal plant extracts added seasoning pork, in particular, significantly highest in group T-1. Lightness ($L^*$) value tended to decrease with increasing storage days, redness ($a^*$) was significantly higher in the medicinal plant composites added groups (T-1, 2 and 3) than control, yellowness ($b^*$) had no significant difference among three groups added medicinal paint composites. In hardness test, raw pork (control) was lower than seasoned pork groups, but tended to increase by added medicinal plant composites. Cooking loss increased with increasing storage period, but there was no significant difference between the seasoned pork groups ($T-0{\sim}3$). The changes of pH showed lower in control than seasoned pork groups ($T-0{\sim}3$) added seasoning sauce. Moisture content decreased with increasing storage period. VBN content increased during storage. After storage for 15 days, it was significantly higher in the order of T-3 >> T-0 > T-2 > T-1.
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