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  • 1980-1984  (17)
Source
Material
Years
Year
  • 1
    Electronic Resource
    Electronic Resource
    Comparison of the Effects of High and Low Voltage Electrical Stimulation on Quality-Indicating Characteristics of Beef Carcasses (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: Electrical stimulation, both high-voltage (HVES; 55OV) and low-voltage (LVES; 35V), resulted in brighter, more youthful appearing color of lean as compared to that of controls (not stimulated). There were no differences attributable to electrical stimulation for marbling or “heat-ring” score. Contrasts were made between LVES-A (35V), LVES-B (60V) and nonstimulated sides. LVES-A resulted in brighter color of lean but lower marbling scores than did LVES-B. LVES-B produced brighter lean color and lower “heat-ring” scores as compared to that of controls. Use of LVES-A resulted in higher marbling scores as compared to that of controls. “Shackled” sides of LVES (both A and B) carcasses had significantly higher incidences of iridescence and two-toning than did the “Free” sides and the controls.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1984.tb13229.x
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    Paper (German National Licenses)
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  • 2
    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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  • 3
    Electronic Resource
    Electronic Resource
    A Technique to Measure Binding Properties of Non-meat Proteins in Muscle-Juncture Formation (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: Junctures of meat containing five nonmuscle protein products were made by use of a technique in which cubes of porcine longissimus muscle were oriented according to three fiber directions and joined together with certain nonmuscle protein products to form blocks. These blocks were cooked (72°C) and their junctures evaluated for viscoelastic properties. Viscoelastic properties were not different (P 〉 0.05) among all comparisons of junctures except for those made with sodium caseinate and no protein product (controls) which did not form a juncture. Junctures made with plasma protein (PP) or egg albumin (EA) had higher numerical values for viscoelastic properties than those made with either isolated soy protein (ISP) or vital wheat gluten (VWG). VWG-junctures had higher numerical values for viscoelastic properties when cooked to 93°C than when cooked to 72°C. The technique of preparing muscle junctures was satisfactory, but techniques for Instron stress-relaxation measurements of junctures need improvement.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb12696.x
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  • 4
    Electronic Resource
    Electronic Resource
    Effect of Postmortem Time and Temperature on the Release of Lysosomal Enzymes and Their Possible Effect on Bovine Connective Tissue Components of Muscle (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: The influence of postmortem time and incubation temperature on the release of lysosomal enzyme activity and their effect on the muscle connective tissue have been investigated. Semimembranosus muscles from nine steers were restrained and held at 2°C (C) for 60 hr; five portions of each muscle were elevated to 37°C (HT) for different 12-hr sequences of the 60 hr. It was found that HT incubated samples showed a greater release of lysosomal enzymes (β-galactosidase and β-glucuronidase), regardless of the time postmortem when high temperature conditioning occurred. The inclusion of hyaluronidase or β-galactosidase in the sample incubation solution resulted in an increase in the dissolution of collagen fibers by collagenase, which indicates that lysosomal glycosidases may also participate in the dissolution of collagen fibers during postmortem aging.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1981.tb03008.x
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    Paper (German National Licenses)
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  • 5
    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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  • 6
    Electronic Resource
    Electronic Resource
    FRAGMENTATIÓN PROCEDURE FOR BOVINE LONGISSIMUS MUSCLE AS AN INDEX OF COOKED STEAK TENDERNESS (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: A relatively simple fragmentation procedure using raw bovine muscle has been refined for use in predicting tenderness of broiled loin steaks. Fragmentation measures were obtained on muscle tissue by stirring homogenates through nylon cloth screens of specific pore sizes (250 km, 149 pm, and 88 pm). Raw muscle from “tough” steaks produced higher quantities of muscle fragments greater than 250 pm in size than did “tender” steaks. Fragmentation is best expressed by use of a fragmentation index which accounted for approximately 50% of the observed variation in loin steak tenderness for carcasses of A maturity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1980.tb07470.x
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    Paper (German National Licenses)
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  • 7
    Electronic Resource
    Electronic Resource
    Factors Affecting Properties of Raw-Frozen Pork Sausage Patties Made with Various NaCl/Phosphate Combinations (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: Whole hog sausage patties made with (1) no phosphate, (2) 0.375% sodium tripolyphosphate (STP) and (3) 0.441% Lem-O-Fos® in combination with salt levels of 1.5, 1.0, 0.5, and 0.0% NaCl were frozen and packaged. Use of phosphates decreased off-flavor and rancidity development, improved binding, and increased pH values, cooking yields and scores for saltiness and juiciness. The prooxidant effect of NaCl was masked by the antioxidant properties of STP and Lem-O-Fos®. Extended periods of frozen storage reduced cooking yields, juiciness and texture scores and enhanced development of off-flavor and rancidity. However, use of phosphates or vacuum packaging exhibited an antioxidant effect during extended periods of frozen storage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1984.tb14991.x
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  • 8
    Electronic Resource
    Electronic Resource
    Factors Affecting Properties of Precooked-Frozen Pork Sausage Patties Made with Various NaCl/Phosphate Combinations (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: Whole hog sausage patties made with (1) no phosphate, (2) 0.375% sodium tripolyphosphate (STP) and (3) 0.441% Lem-0-Fos® in combination with salt levels of 1.5, 1.0, 0.5 and 0.0% NaCl were precooked, frozen and packaged. Use of phosphates increased pH values, cooking yield, saltiness and juiciness scores and decreased the formation of off-flavor and rancidity. Higher NaCl levels increased saltiness scores and maintained juiciness scores and reheating yields over extended periods of frozen storage. Sodium chloride alone increased TBA values but did not affect (P 〉 0.05) off-flavor scores. The use of phosphates or vacuum packaging reduced the development of off-flavor and rancidity during extended periods of frozen storage.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1984.tb14993.x
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  • 9
    Electronic Resource
    Electronic Resource
    Enzymic Lipid Peroxidation in Microsomal Fractions from Beef Skeletal Muscle (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: Enzymic lipid peroxidation in microsomes isolated from beef muscle (longissimus dorsi: LD) has been demonstrated. The reaction requirad NADPH or NADH, ADP, and Fe2+ or Fe3+. The optimum pH of the reaction was approximately 6.5. The rate of oxidation was higher with NADPH than with NADH and also higher with Fe2+ than with Fe3+. For microsomes isolated from the LD muscles stored for 3–11 days postmortem at 4°C, the rate of oxidation at pH 6.8 and with 0.1 mM NADPH, 0.1 mM ADP and 0.015 mM Fe3+ ranged from 4.89–16.52 nmoles malonaldehyde per mg protein for 30 min incubation at 36°C. Prolonged storage of the intact muscles at 4°C considerably reduced the oxidative enzymic activity of the isolated microsomes.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1984.tb13186.x
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  • 10
    Electronic Resource
    Electronic Resource
    Ultrastructural Changes During Chopping and Cooking of A Frankfurter Batter (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: Frankfurters were made in a nonvacuum bowl chopper. Batter samples were taken after 2, 6, 9, 12, and 15 min of chopping and after 30, 60, and 90 min of cooking. Both raw and cooked batter samples were fixed in solutions of glutaraldehyde and paraformaldehyde, OsO4, and then embedded in SPURR (low-viscosity resin). Light microscopy (toluidine blue-stained sections) was used to identify the location, appearance and structures of major components; electron microscopy (lead citrate-stained sections) was used to determine ultrastructural changes. During chopping, muscle fibers were reduced in size but some remained intact; lipid droplets were reduced in size with only a portion of them being surrounded by a protein interface and collagen fibers were somewhat dispersed but were otherwise unaltered. More observable changes occurred during cooking than during chopping. At the end of cooking (90 min) collagen fibrils had lost their banding pattern; some lipid droplets retained their protein interface and myofilaments changed from a fibrous to a granular appearance.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb12768.x
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