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  • 1980-1984  (10)
  • 1
    Electronic Resource
    Electronic Resource
    Nutrient Composition of Lamb of Two Age Groups (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: The nutrient composition of Spring and Fall lambs were investigated. Seven retail cuts from carcasses of lambs raised under commercial conditions, and representing two age groups (4–4½ mo and 8–9 mo) were analyzed in both raw and cooked form. Separable lean meat was analyzed for proximate composition, 8 vitamins, 8 inorganic nutrients, cholesterol and 12 fatty acids. Except for moisture, total lipid, riboflavin, niacin, Zn and Fe, there were no practical differences in nutrients between cuts or age groups. Thiamin had the lowest cooking retention with a range of 29.0-63.5%.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1984.tb14961.x
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  • 2
    Electronic Resource
    Electronic Resource
    Nutrient Composition of Fresh Retail Pork (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: The nutrient composition of fresh pork was studied in samples from 71 carcasses. On separable lean, nutrient composition was determined for 7 raw retail cuts from one side of each of 11 carcasses, and nutrient retention was determined on the 7 matching cuts from the other side that had been cooked by common household methods. Loins from 60 additional carcasses were analyzed to determine whether USDA grades 1, 2, and 3 and region of production affected nutrient composition. The data indicated that variation in nutrient composition of pork is more dependent on the retail cut within the carcass than either the grade or the region of production of the carcass. Cooking method significantly affected retention of most of the nutrients analyzed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1983.tb05080.x
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  • 3
    Electronic Resource
    Electronic Resource
    EFFECT OF ELECTRICAL STIMULATION ON CARCASSES FROM STRESSED AND UNSTRESSED STEERS (1983)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food quality 6 (1983), S. 0 
    Details
    ISSN: 1745-4557
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Twelve steers of known breeding and management history were assigned to two antemortem treatment groups (stress or no stress). After evisceration and splitting, sides in each group were randomly assigned to two electrical stimulation treatments (no stimulation or stimulated intermittently with one amp current for 2 min). ES did not affect any of the carcass characteristics in the stressed group except lean and overall maturity. Although ES did not affect lean color in stressed carcasses, they were darker in color than unstressed carcasses. The unstressed stimulated carcasses were more tender and contained less panel detectable connective tissue than the unstressed-unstimulated carcasses. ES did not improve tenderness of stressed carcasses. Thus, it appears that ES will be effective only on carcasses that have not severely depleted their stores of muscle glycogen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1745-4557.1983.tb00758.x
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  • 4
    Electronic Resource
    Electronic Resource
    Vitamin B12, E and D Content of Raw and Cooked 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: The relationship of carcass grade, primal cuts and cooking to vitamin B12, E and D in separable lean beef was studied. The average vitamin B12 content in 471 samples of raw and cooked beef was 3.17 μg/100g. The vitamin B12 content of raw and cooked beef was similar; however, on considering the moisture and fat losses during cooking, there was a 27–33% loss of B12. The vitamin E content of raw and cooked beef was similar and averaged 133 μg/100g for 464 samples. From 33–44% of the original vitamin E in the meat was lost upon cooking. Raw and cooked beef contained 80–100 ng of vitamin D/100g, with 35–42% of the original vitamin D content being lost upon cooking. The content of vitamins E and D in beef is low and of little nutritional importance; however, beef is an important dietary source of vitamin B12.〈section xml:id="abs1-2"〉〈title type="main"〉SUMMARY & CONCLUSIONSRAW OR COOKED separable lean contained approximately 80–100 ng of vitamin D/100g, with 35–42% of the original vitamin D being lost upon cooking. Raw and cooked separable lean contained approximately 40–800 μg of vitamin E/100g with a mean value of 133 μg for 464 samples. From 33–44% of the original vitamin E was lost during cooking. Fat trim contained 300–350 μg of vitamin E/100g. HPLC showed that α-tocopherol was the major E vitamer in meat. Vitamin B-12 content of raw and cooked separable lean ranged from 1 – 10 μg/100g, with a mean value of 3.17 μg B-12/100g for 471 samples. Fat trim contained approximately 1.5 μg of B-12/100g. RID was a feasible method for determining B-12 in meat, with the B-12 values reported herein being appreciably greater than typical values reported for B-12 in beef as determined by microbiological assays. Beef consumption makes an important contribution towards meeting an individual's dietary requirement for B-12.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1982.tb12883.x
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  • 5
    Electronic Resource
    Electronic Resource
    Sampling of Fresh Pork for Nutrient Analysis (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: Paired loins from 18 barrow and gilt carcasses were randomly selected to evaluate the effect of marketing on the nutrient composition of fresh pork loins. The paired loin from one side was shipped through a predetermined marketing system, while the control loin was transported immediately back to Beltsville, MD. Rib chops from each loin were analyzed for key nutrients. The overall results from this study indicate that pork loins subjected to extreme marketing conditions have weights, appearance and quality traits and nutritional composition similar to loins shipped from a slaughter plant directly to the research facility. Thus, pork samples handled by a controlled research technique and sampled at the point of slaughter are basically equivalent to what the consumer purchases at the retail level.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1981.tb02978.x
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  • 6
    Electronic Resource
    Electronic Resource
    Ultrastructural localization of acid phosphatase activity in the small intestinal absorptive cells of postnatal rats (1981)
    Springer
    Histochemistry and cell biology 71 (1981), S. 501-512 
    Details
    ISSN: 1432-119X
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine
    Notes: Summary The ultrastructural localization of acid phosphatase activity was investigated in ultrathin (0.05 μm) and semithin (0.5 μm) sections of the small intestinal epithelial cells of postnatal rats. Until around the 15th day of neonatal life acid phosphatase activity in the duodenal and jejunal epithelial cells was observed on the microvillous membrane, the membrane of the tubulo-vacuolar system, the lateral cell membrane, the lysosomes, the Golgi apparatus and the GERL of Novikoff (1963). After about the 15th neonatal day, the tubulo-vacuolar system enzyme disappeared from both cells. Acid phosphatase activity then became localized on the microvillous membrane, the lateral cell membrane, the lysosomes, the Golgi apparatus, and the GERL, as in adult rats. During the suckling period, acid phosphatase in the ileal cells could be seen on the microvillous membrane, the lateral cell membrane, the Golgi apparatus, the GERL, the membrane of tubulo-vacuolar system and the supranuclear vacuole. At weaning, however, the tubulovacuolar system and the supranuclear vacuole enzyme disappeared, and only the lysosomes and the GERL of these cells showed acid phosphatase activity, as in the adult rat. It was concluded that the acid-phosphatase-containing tubulo-vacuolar system and the supranuclear vacuole in the epithelial cells of the distal intestine of suckling rats may possess a strong phagolysosomal function as well as having an absorptive capacity.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00508376
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  • 7
    Electronic Resource
    Electronic Resource
    A comparative study of histology in perthes' disease and idiopathic avascular necrosis of the femoral head in adults (IANF) (1980)
    Springer
    International orthopaedics 4 (1980), S. 39-46 
    Details
    ISSN: 1432-5195
    Keywords: Perthes' disease ; Idiopathic avascular necrosis ; Femoral head
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Résumé Les auteurs ont pratiqué l'étude histologique de 37 têtes fémorales atteintes de nécrose avasculaire idiopathique de l'adulte et de 57 biopsies du noyau de la tête fémorale dans la maladie de Legg-Perthes-Calvé. Bien que les modifications pathologiques précoces soient semblables dans ces deux maladies, elles divergent aux stades intermédiaire et terminal. Si la cause déterminante de ces maladies reste obscure, les deux sont vraisemblablement produites par des épisodes répétés d'infarcissement de la tête fémorale.
    Notes: Summary Thirty-seven femoral heads in idiopathic avascular necrosis of adults and fifty-seven biopsy specimens of the capital nucleus of Perthes' disease were studied histologically. Although the early pathological changes in these two diseases are very similar, in the intermediate and late (advanced) stages they gradually take differing courses. Although the initiating causes in both diseases are still obscure both are probably produced by repeated episodes of infarction of the femoral head.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00266602
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  • 8
    Electronic Resource
    Electronic Resource
    Fate of streptomycin in mycelium of the producer organism (1981)
    Springer
    Biotechnology letters 3 (1981), S. 239-244 
    Details
    ISSN: 1573-6776
    Source: Springer Online Journal Archives 1860-2000
    Topics: Process Engineering, Biotechnology, Nutrition Technology
    Notes: Summary While the mycelium of streptomycin (SM) producer takes up extracellular SM, it eliminates the accumulated SM after phosphorylation with SM 6-kinase. The rate of uptake of SM, rather than the content of SM 6-kinase in mycelium, limits the capacity of mycelium to phosphorylate the extracellular SM.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00154651
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  • 9
    Electronic Resource
    Electronic Resource
    Two-stage nuclear demagnetization refrigerator (1980)
    Springer
    Journal of low temperature physics 38 (1980), S. 737-745 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Two-stage nuclear demagnetization has been performed using PrCu6 and Cu as coolants. The Cu nuclear stage reached temperatures as low as 10 ΜK with a rate of temperature rise of less than a few ΜK/h. The corresponding conduction electron temperature is estimated to be less than 50 ΜK. A nuclear orientation thermometer of Al 54Mn has been successfully used to measure temperatures down to 10 ΜK.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00115500
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  • 10
    Electronic Resource
    Electronic Resource
    Two-stage nuclear demagnetization refrigerator reaching 27 µK (1984)
    Springer
    Journal of low temperature physics 55 (1984), S. 17-31 
    Details
    ISSN: 1573-7357
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Abstract A two-stage nuclear demagnetization refrigerator with large cooling capacity has been constructed and successfully operated. The first stage consists of 11 moles of the Van Vleck paramagnet PrNi5 in an initial field of 6 T, and the second stage consists effectively of 19 moles of copper in an initial field of 7.6 T. The minimum temperature as measured with pulsed platinum NMR is 27 µK, the lowest ever obtained in a low-field experimental region.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00683649
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