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  • 1980-1984  (14)
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Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Effects of Time Postmortem of Electrical Stimulation and Postmortem Chilling Method on Pork Quality and Palatability Traits (1984)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 49 (1984), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Twenty market hogs were used in this study to determine the effects of electrical stimulation (ES) administered at various times postmortem (5, 15-20, or 30-40 min) and chilling treatment (Conventional = 24 hr at 0-2°C, or Rapid = 34°C for 3 hr then 0-2°C for 21 hr) on pork quality and palatability traits. The findings of this study indicated that ES of hog carcasses, particularly at 5 or 15-20 min postmortem, detrimentally affects quality by inducing a paler color, reducing muscle firmness, and increasing muscle separation. Rapid chilling lessened these detrimental effects. Cooking loss, cooking time. shear force values, and palatability traits were not affected by ES or chilling rate.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1984.tb13733.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Assessing Palatability Characteristics of Beef Destined for Retail Distribution (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 48 (1983), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Beef strip loins (n=723) were obtained from nine different suppliers and were evaluated for certain quality-indicating characteristics and fat thickness. After detailed sensory evaluation, several differences in palatability were found when comparing all suppliers. When stratified according to marbling and fat thickness, those steaks with marbling scores of “Slight-minus” regardless of fat thickness received the lowest ratings.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1983.tb05068.x
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Postmortem Muscle Metabolism and Meat Tenderness (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 48 (1983), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Left sides of 75 steers were electrically stimulated (ES) and right sides were nonstimulated controls (NES). NES sides had the highest pH, lowest temperature, were slower-metabolizing (lower R values), and produced steaks that had the least desirable sensory ratings compared to ES sides. Carcass weight, fat thickness, temperature and pH accounted for 31, 32, 34 and 16% of the variation, respectively, in overall tenderness ratings for steaks from NES sides and accounted for 0, 0, 0 and 7% of the variation, respectively, for steaks from ES sides. R values accounted for 28 and 32% of the variation in overall tenderness ratings of steaks derived from NES and ES sides, respectively. Thus, metabolic rate (R value) is a good indicator of postmortem tenderness.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1983.tb14780.x
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    Paper (German National Licenses)
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of Time-on-Feed on the Palatability of Rib Steaks from Steers and Heifers (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 47 (1982), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Rib steaks from steers (n=326) and heifers (n=68) that were either grass-fed or fed high-concentrate diets for 30–230 days were used in palatability studies. Extending time-on-feed beyond 100 days (steers) or 90 days (heifers) provided little additional palatability assurance. Within time-on-feed strata from 100 through 230 days, few differences in palatability were found between rib steaks from carcasses of different USDA quality grades. The minimum marbling requirement for the U.S. Choice grade could be lowered with no appreciable loss in palatability if the stipulation was made that cattle had been fed a high-concentrate diet for at least 90 days.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb10083.x
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    Paper (German National Licenses)
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  • 5
    Electronic Resource
    Electronic Resource
    Comparison of Subcutaneous Fat Thickness, Marbling and Quality Grade for Predicting Palatability of Beef (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 47 (1982), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Beef from yearling steers (n = 254) which were fed either grass only or high-concentrate diets was used to study subcutaneous fat thickness as an alternative method for grading beef carcasses. Assigning carcasses to three expected-palatability groups based on fat thickness was at least equivalent to, and perhaps slightly more precise than, the use of USDA quality grades for grouping the carcasses according to expected palatability. There were progressive increases in palatability of cooked beef as fat thickness of carcasses from cattle fed 90–160 days increased from less than 2.53 mm up to 7.61 mm, but quantities greater than 7.61 mm did not further improve palatability.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb10089.x
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    Paper (German National Licenses)
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  • 6
    Electronic Resource
    Electronic Resource
    Effects of Certain Electrical Stimulation Parameters on Quality and Palatability of Beef (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 46 (1981), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Grain-finished steers and heifers (n=390) were slaughtered in a commercial plant and assigned to one of five groups: (a) electrical stimulation (ES) immediately after exsanguination, (b) ES immediately before evisceration, (c) ES immediately after evisceration, (d) ES immediately after splitting, and (e) untreated (not ES). ES consisted of either 150 or 550 volts for either 1 or 2 mm. Electrically stimulated carcasses had more youthful, brighter colored lean and less “heat-ring” than untreated (not ES) carcasses. Steaks from electrically stimulated carcasses had (P〈0.05) lower shear force values, were more tender, had less panel-detectable connective tissue and higher overall palatability ratings than did steaks from untreated (not ES) carcasses. Steaks from carcasses receiving 550-volt ES usually had more youthful, brighter colored lean and lower shear force values, were more tender, had less panel-detectable connective tissue and higher overall palatability ratings than steaks from carcasses that received 150-volt electrical stimulation. Quality and palatability traits of carcasses electrically stimulated for 1 mm were not different from those of carcasses receiving 2 mm of electrical stimulation. Electrical stimulation at different stages in the slaughter-dressing sequence did not evoke differential responses in quality or palatability factors.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1981.tb14519.x
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Glandless Cottonseed, Peanut and Soy Protein Ingredients in Ground Beef Patties: Effect on Rancidity and Othei Quality Factors (1981)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 46 (1981), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Defatted flours and protein concentrates and isolates produced from glandless cottonseed, peanut, and soybean were used in rehydrated state (1:2 dry material/water) to replace 10% of the meat in ground beef patties. Fat content of both all-beef and extended patties was adjusted to 20%. Patties were baked on racks to varying final internal temperatures. Extended patties were compared with all-beef patties for rancidity development, cooking properties, and sensory quality. All the oilseed protein ingredients retarded oxidative rancidity development in cooked refrigerated patties, with the highest antioxidant potential shown by the cottonseed protein ingredients. Extended patties had higher cooked yields than all-beef patties, contamed less fat, and were not significantly different from all-beef patties in sensory quality.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1981.tb14530.x
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    Paper (German National Licenses)
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  • 8
    Electronic Resource
    Electronic Resource
    Concentration of Creatine Phosphate, Adenine Nucleotides and Their Derivatives in Electrically Stimulated and Nonstimulated Beef Muscle (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 47 (1982), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The concentration of creatine phosphate (CP), adenosine tri-, di- and monophosphate (ATP, ADP and AMP, respectively), inosine monophosphate (IMP) and inosine in longissimus muscle removed from electrically stimulated (ES) and nonstimulated (NS) beef sides was enzymatically determined. After aging the carcass 7 days, steaks were removed for flavor evaluation. R values (absorbance ratios) were obtained from muscle samples removed over time from both sides. Data indicate more rapid catabolism of CP, ATP, and ADP in ES samples, with subsequent fluctuations in IMP and inosine concentration. At 12 and 24 hr post-stimulation, ES samples had more inosine; however, this difference did not exist after aging. Flavor differences were not observed after the 7-day aging period. R values parallel the degradation of adenine nucleotides and indicate rapid onset of rigor mortis in ES muscle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb07683.x
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    Paper (German National Licenses)
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  • 9
    Electronic Resource
    Electronic Resource
    Rheological Properties of Two Heat-Induced Protein Gels (1982)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 47 (1982), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Rheological properties of heat-induced gels from egg albumen and bovine plasma proteins were measured using a mechanical loading device. Each protein was tested at 8% protein concentration and heated for 0–120 min at 80°C in an agitating water bath. After heating, the viscosity index, apparent elasticity and initial penetration force of the gels were evaluated. Bovine plasma protein dispersions exhibited a substantially higher viscosity index, apparent elasticity and initial penetration force than egg albumen gels. Bovine plasma proteins produced a gel structure which was strong and elastic. By comparison, heat-induced gels of egg albumen proteins were fragile and somewhat brittle.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb12714.x
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    Paper (German National Licenses)
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  • 10
    Electronic Resource
    Electronic Resource
    LYSOSOMAL ENZYME DISTRIBUTION IN ELECTRICALLY STIMULATED OVINE MUSCLE (1980)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 45 (1980), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Six lamb carcasses were split, the left side (ES) was electrically stimulated (25 pulses, 0.5–1 set each at 440V) while the right side (C) served as an unstimulated control. Samples were removed at 1 hr post-stimulation and assayed for total, free, and specific activities of the lysosomal enzymes β-glucuronidase and cathepsin-C. A significant (P 〈 0.05) increase in percent free activity and a significant decrease in specific sedimentable activity and total activity of both enzymes was found for the ES samples. This indicates that the lysosomal membranes are disrupted due to electrical stimulation. The possible effects of the free lysosomal enzymes on muscle proteins and meat tenderness is discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1980.tb07533.x
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    Paper (German National Licenses)
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