• Title/Summary/Keyword: palatability

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Effects of Freezing Period and Chilling Process after Thawing on Physicochemical Properties and Palatability of Loin from Jeju Island Reared Crossbred Black Pigs (동결 기간 및 해동 후 냉장이 제주 흑돼지고기의 물리화학적, 기호적 품질에 미치는 영향)

  • Moon, Yoon-Hee
    • Journal of the East Asian Society of Dietary Life
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    • v.20 no.4
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    • pp.560-566
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    • 2010
  • In this study, the effects of the chilling process after thawing on pork quality were investigated by comparing the physiochemical properties and palatability of the samples just after thawing(0-TP) and the other chilled at $2^{\circ}C$ for two days after thawing (2-TP). The samples used for this study were obtained from vacuum packaged frozen loin from crossbred black pigs reared on Jeju island, and frozen at $-20^{\circ}C$ for 1 month and 12 months, and then thawing them at $4^{\circ}C$ for 20 hours. In the case of loin that was thawed after freezing for 1 month, 2-TP showed a higher water holding capacity and myofibril fragmentation index, lower hardness and chewiness, as well as better juiciness and palatability than 0-TP. However, effects of chilling after thawing were not significant in the case of loin that had been frozen for 12 months.

Studies on the Grazing Behavior on Mixture Pasture I. Grazing cattle`s paratabiility through grazing time method in response to differente sward height (혼파초지에서 가축의 방목행동에 관한 연구 I. 채식시간법에 의한 초고별 방목우의 채색기호성)

  • 김성우;전병태;신재순;황석중
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.9 no.2
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    • pp.88-95
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    • 1989
  • This experiment 'was conducted to investigate the grazing cattle's palatability by the method of grazing time on the pasture dominated orchardgrass and on the pasture dominated perennial ryegrass from June to October, 1987. The experiment was carried out on the experimental field at Livestock Ex- Experiment Station. The results are summarized as follows: 1. In summer, the grazing time on the pasture dominated orchardgrass increased in 49.7 min, 57.4 min, 102 min, 118.7 min, respectively as sward height decreased in 50 cm, 45 cm, 35 cm, 23 cm, respectively and their correlation coefficiet was -0.9722*(P <0.05). 2. In autumn, the grazing time on the pasture dominated perennial ryegrass decreased in 182 min, 98.5 min, 49.4 min, 31.9 min, respectively as sward height decreased in 43 cm, 34 cm, 25 cm, 18 cm, respectively and their correlation coefficient was 0.9684*. (P <0.05). 3. Grazing time increased as sward height increased on the pasture dominated perennial ryegrass because the composition rate of orchardgrass and red clover which were palatability on the plot of the high sward height.was many. It was suggested that the factor that could be first related to palatability on mixture pasture was the factor of species than the factor of sward height. 4. When the eating rate on the plot of the low sward height was over 55% as the grazing day went by, it gradually decreased because the eating rate on it was high but the fresh yield was low. After all it seemed that it affected palatability because forage availability on the plot of the low sward height was degenerating.

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Quality and Palatability of Beef Patty Containing Gums (Gum류를 첨가한 우육 Patty의 품질 및 기호성)

  • 송형익;박충균;남주현;양종범;김동술;문윤희;정인철
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.31 no.1
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    • pp.64-68
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    • 2002
  • This study was conducted to investigate en the quality characteristics and palatability of beef patties containing various gums such as carrageenan, xanthan gum and guar gum. Moisture contents of raw and cooked patties of control were lower than those of the gum-added Patties, and fat content of control patty was higher than that of the gum-added patties. Protein content of gum-added patties was higher than that of the control patty. Hunter's $L^{*}$ value (lightness) of raw patty of control was higher than that of the gum-added patties, hut Hunter's $a^{*}$(redness) and $b^{*}$(yellowness) values were not different among four kinds of patties. Hunter's $L^{*}$, $a^{*}$ and $b^{*}$ values of cooked patties showed no significant difference among patties. Cooking yield, fat retention and water holding capacity of gum-added patties were higher than those of the control patty. Hardness and chewiness of patties showed no significant difference among patties, but gumminess of gum-added patties was higher than that of the control patty. Aroma, juiciness and palatability were not different among four kinds of patties, but texture of gum-added patties was higher than that of the control patty.l patty.tty.

United States beef quality as chronicled by the National Beef Quality Audits, Beef Consumer Satisfaction Projects, and National Beef Tenderness Surveys - A review

  • Gonzalez, John Michael;Phelps, Kelsey Jean
    • Asian-Australasian Journal of Animal Sciences
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    • v.31 no.7
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    • pp.1036-1042
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    • 2018
  • Meat quality is a very difficult term to define because it means different things to different people. When purchasing beef, consumers in the United States are likely to consider color, price, marbling level, subcutaneous fat trim, or cut thickness when determining the quality of beef. Once consumers have consumed the product, meat quality becomes exponentially more difficult to define due to the subjective nature of this term. Traditionally, tenderness, juiciness, and flavor have been considered the three most important factors that determine the palatability of beef. Therefore, American meat science beef research and industry focus has turned to measuring and quantifying these 3 attributes objectively and subjectively, and to determining what influences them. In reviewing the scientific literature, attempting to meaningfully summarize the findings of the thousands of studies on beef meat quality is impossible due to the inherent differences in the objective and methodology of studies. Fortunately, the United States beef industry and their national trade association, the National Cattlemen's Beef Association (NCBA), have conducted numerous surveys and audits to characterize the quality of the products being produced and marketed by their cattlemen and the palatability perceptions of their consumers. The data produced by these studies is quite large and impossible to summarize in entirety in this review. Therefore, this review concentrates on the most important attributes that determine the value of a beef carcass and objectively measured and consumer-assessed palatability characteristics of fresh meat from these carcasses from 1987 through 2010.

Physicochemical Properties of Rice Kernels Affected on Palatability (식미에 영향을 미치는 쌀 곡립의 이화학적 특성)

  • Yoon, Mi-Ra;Kim, Chae-Eun;Koh, Hee-Jong;Kang, Mi-Young
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.52 no.1
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    • pp.45-50
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    • 2007
  • This study was investigated the relationship between palatability and physicochemical properties of rice kernels from two rice cultivars, including Gopumbyeo and Palgongbyeo. Major fatty acids of rice were oleic(35% in Gopum, 33.2% in Palgong, respectively) and linoleic acids (42.9% in Gopumbyeo, 40.7% in Palgongbyeo, respectively). There were significant differences in composition of amino acids and content of sugar from non-starch polysaccharide between two rice cultivars. However, no difference was found in mineral contents between Gopumbyeo and Palgongbyeo. In Rapid Visco Analyzer examination, pasting temperature and breakdown of Gopumbyeo were lower than those of Plagongbyeo. In X-ray diffraction patterns of starches separated from two rice cultivars, traditional A type and there was no difference in crystalline of rice starch. We could also obtain the results that Goupumbyeo, known to have good eating quality, had higher palatability value than Palgongbyeo.

EFFECTS OF ADDITIONAL FEEDING REGIMEN FOR THE OFF-THE PASTURE LAMBS ON CARCASS TRAITS AND MEAT QUALITY

  • Lee, Y.B.;Demment, M.W.
    • Asian-Australasian Journal of Animal Sciences
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    • v.8 no.2
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    • pp.139-143
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    • 1995
  • Two hundred eighty weaned Targhee lambs were grazed on annual grass-subclover pastures for 84 d under continuous and rotational defoliation grazing system. At the end of the grazing season, twenty lambs weighing 44 kg were slaughtered directly off the pasture, whereas two groups of 20 lambs each were fed either a alfalfa pellet or a 50% alfalfa/50 concentrate pellet for additional 6 wk until they reached an average live weight of 50 kg. Carcass traits and loin chop palatability were compared. Lambs slaughtered directly off the pasture were lighter than desirable market weight and some lambs had less than adequate fat cover and approximately half of them were graded U.S. Good in quality. Overall conformation and leg muscling was inferior and loin chops were less tender, less juicy and less flavorful. The lambs on alfalfa pellets for 6 wk appeared to be ideal in terms of carcass quality (all Choice except one), fat cover and yield grade. They had better taste panel scores in all palatability traits than off-the-pasture lambs, and most loin chops were acceptable. The lambs on a 50% concentrate diet for 6 wk had a higher conformation score and a greater muscling in the legs. Loin chops had more marbling and better palatability than other groups. However, some lambs had an excessive fat cover and lower yield of retail cuts. It was concluded that additional feeding for 6 wk on alfalfa pellets until the live weight reached 50 kg(for Targhee lambs) was the best way of finishing lambs at the end of grazing season in the California rangeland.

Comparison of Grain Quality of Bacterial Blight Resistant Near-isogenic Lines of Rice under Different Fertilization Levels

  • Shin Mun-Sik;Kim Ki-Young;Choi Yun-Hi;Shin Seo-Ho;Ko Jae-Kwon;Lee Jae-Kil
    • KOREAN JOURNAL OF CROP SCIENCE
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    • v.51 no.4
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    • pp.318-321
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    • 2006
  • This study was conducted in 2002 and 2003 to investigate variation on rice quality associated with cooking, and eating qualities under the three different fertilizer levels, none fertilizer level($N-P_2O_{5-}K_2O=0-0-0kg/ha$), ordinary fertilizer level($N-P_2O_{5-}K_2O=1l0-45-57kg/ha$), and heavy fertilizer level($N-P_2O_{5-}K_2O=180-90-110kg/ha$). The eight resistant near-isogenic lines(NILs) for bacterial blight in rice were examined for grain appearances, several physicochemical properties, and palatability value measured by Toyo taste meter. Significant variations in NILs(V), Years(Y), and VxY interaction were recognized in grain length and palatability value under the none fertilizer cultivation, in grain width under the heavy fertilizer cultivation, and in white belly ratio under the three different fertilizer cultivations, respectively. According to increase the fertilizer application rate, variation in grain length and grain width were not significant, but grain thickness was thinner under the ordinary and heavy fertilizer cultivations than under the none fertilizer cultivation. On the other hand, white belly ratio, protein content and Mg/K ratio increased, while amylose content and palatability value lowered. Alkali spreading value lowed under the heavy fertilizer cultivation than under the none and ordinary fertilizer cultivations. Palatability value was significantly low in the line carrying XalJ than in the other lines under the ordinary fertilizer cultivations.

Effects of Ultrasonic Treatment Time on the Quality and Palatability of fried Chicken Meat (초음파 처리시간이 튀김 계육의 품질 및 기호성에 미치는 영향)

  • 남주현;송형익;박충균;박성하;김도완;문윤희;정인철
    • Food Science of Animal Resources
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    • v.22 no.2
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    • pp.115-121
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    • 2002
  • This study was carried out to investigate the effect of ultrasonic treatmeat time on the quality and palatability of fried chicken meat. Moisture content, U-10 treatment (chicken meat treated by ultrasonification for 10 minutes) of breast and leg were lower than those of the control, protein contents were not different between samples. Fat content was higher with increasing ultrasonic treated time. Frying loss of ultrasonic treated breast and leg were lower than those of the control, water holding capacity of ultrasonic treated breast and leg were higher than those of the control with increasing ultrasonic treated time. Rheological textures between control and ultrasonic treated samples were not different. L* value(lightness) between control and ultrasonic treated samples were not different, but L* values of breast were higher than those of the leg. And a* value(redness) was not effect by ultrasonic treatment, but a* value of leg were higher than those of the breast. Amino acid composition has included many glutamic acid, aspartic acid, lysine, leucine and arginine. Oleic acid and linoleic acid occupied beyond 50% of fatty acid composition. And taste, texture, juiciness and palatability improved with increasing ultrasonic treated time.

Varietal Difference of Eating Quality after Storage in Room Temperature (벼 상온 저장시 식미관련 특성의 품종간 차이)

  • Lee, Jong-Hee;Cho, Jun-Hyun;Lee, Ji-Yoon;Yeo, Un-Sang;Song, You-Chun;Oh, Seong-Hwan;Kim, Sang-Yeol;Kang, Hang-Won
    • Korean Journal of Breeding Science
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    • v.43 no.4
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    • pp.318-321
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    • 2011
  • Rice ageing describes the changes in physical and chemical properties of rice grains during storage that alter the eating quality of rice. The prevention of deterioration in palatability of rice during storage is important for stable supply. In this study, We conducted to select the variety with superior palatability after storage at room temperature. 'Yeonghojinmi' had much higher head rice ratio of milled rice than that of 'Ilmi', 'Junam'and 'Hwayeong'at similar moisture content of approximately 15%. Grossiness and stickiness were higher in 'Yeonghojinmi' than that of the others. Meanwhile, yellowness(b value) of cooked rice was lower in 'Yeonghojinmi' than that of the others. Of the four varieties, Yeonghojinmi was maintained good eating quality after storage in room temperature, which also contributed to differences in palatability, such as protein content, glossiness, stickiness and color of cooked rice.