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  • Articles: DFG German National Licenses  (23)
  • 1975-1979  (23)
  • 1960-1964
  • 1979  (8)
  • 1977  (15)
Source
  • Articles: DFG German National Licenses  (23)
Material
Years
  • 1975-1979  (23)
  • 1960-1964
Year
  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food safety 1 (1977), S. 0 
    ISSN: 1745-4565
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Top and bottom round steaks inoculated with Yersinia enterocolitica were stored vacuum packaged and in polyvinyl chloride (PVC) films at 1, 2.5 and 5°C for 21–35 days. Y. enterocolitica and total aerobic plate counts of steaks were consistently higher in the more oxygen permeable film (PVC) than in the vacuum packages. The microbial flora of the vacuum packaged steaks at the end of the storage period (21–35 days) consisted, in addition to Y. enterocolitica, primarily of Lactobacillus spp., that of the steaks stored in PVC of Pseudomonas spp.
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 44 (1979), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Cow meat and U.S. Choice or Good beef plates were used to make 20 ground beef formulations. One batch contained only beef (control), 9 batches contained beef and TSP (one of three brands at one of three substitution levels), 1 batch contained beef and PPI, and 9 batches contained both TSP and PPI. Brand of TSP affected color of the raw patties and appearance and dimensional shrinkage of cooked patties, with direction and extent of effects on raw patty color and cooked patty dimensions being determined by the interaction of TSP brand with level of TSP substitution and/or use of PPI. Addition of 1% PPI improved (P 〈 0.05) the texture, flavor and palatability of patties and increased (P 〈 0.05) the cohesiveness of cooked patties (as measured by force and area under the deformation curve), irrespective of brand or substitution level of TSP. The effect of addition of 1% PPI on texture and appearance of raw patties and on weight loss and dimensional shrinkage of cooked patties was a function of the combined effects of brand of TSP, percentage of TSP and use of PPI. In general, however, use of 1% PPI was not able to negate most of the undesirable effects of 20% or 30% TSP addition.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 42 (1977), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Muscles from 20 U.S. Good carcasses were passed through a blade tenderizer one (IX), two (2X) or three (3X) times to determine effects on cooking and palatability characteristics. Psoas major (OX, IX) and semitendinosus (OX, IX, 2X, 3X) muscles were studied. Blade tenderization had little or no effect on thawing loss, cooking loss, cooking time or degree of doneness for steaks from either muscle. Blade tenderization (IX) decreased (P 〈 0.05) shear force requirements and amounts of organoleptically detectable connective tissue and increased (P 〈 0.05) ratings for tenderness for cooked steaks from both muscles. Shear force data suggested that semitendinosus can be made as tender as psoas major by blade tenderization (2X), but organoleptic data did not support such a conclusion, suggesting that sensory panel members considered factors other than or in addition to resistance to shear in assessing relative tenderness. Blade tenderization enhanced the tenderness of two muscles which differ greatly in connective tissue content. Absolute response to blade tenderization (IX) was greater for semitendinosus (by 0.3 kg, shear force; by 0.5 rating scale units, connective tissue amount; and by 0.2 rating scale units, tenderness) than for psoas major. Data suggest that blade tenderization disrupts connective tissue, but not to the extent that would allow blade tenderized muscles high in connective tissue to be used interchangeably with untreated muscles of low connective tissue content.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 42 (1977), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Fresh beef cuts and quarters were shipped from Ellensburg, Wash. to Yokohama, Japan in refrigerated vans with either normal (ambient air) or modified (60% CO2, 25% O2, 15% N2) atmospheres. Packaging treatments involved use of polyvinyl chloride film, calcium alginate coating, cotton stockinettes, polyethylene-lined boxes and vacuum packages for rounds, chucks, ribs, loins and/or quarters. Use of a 0.02% solution of sodium hypochlorite (NaOCl) did not affect the terminal condition of beef cuts or quarters. Use of modified atmosphere was associated with significant improvements in overall appearance and desirability of beef cuts and quarters. The best method for protecting fresh beef cuts during long-distance shipments was vacuum packaging; vacuum packaged cuts were adequately protected from deterioration and weight loss during the 20–21 day shipment. The best system for protecting fresh beef quarters during long-distance, transoceanic shipments consisted of wrapping with PVC film and transport in a modified atmosphere van; however, quarters treated in this manner were not adequately protected from deterioration and received relatively low appearance ratings.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 42 (1977), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Two refrigerated (0 to −1°C) vans containing polyvinyl chloride film (PVC) wrapped OI vacuum packaged (VP) beef cuts were monitored from Richmond, Calif. to Honolulu, Hawaii. One van had a normal (ambient air) atmosphere; the other van had a modified (60% CO2, 25% O2, 15% N2) atmosphere. Neither packaging system nor van atmosphere affected (P 〈 0.05) appearance of cuts evaluated 5–6 days after packaging. However, VP cuts evaluated 7–9 days after packaging were superior (P 〉 0.05) in appearance traits to PVC cuts in 6 of 10 comparisons of cuts in normal atmosphere vans and in only 1 of 10 comparisons of cuts in modified atmosphere vans. Use of a modified atmosphere decreased (P 〉 0.05) microbial growth on cuts shipped and/or stored for 7–9 days. Neither packaging method nor van atmosphere affected (P 〈 0.05) weight losses during transit and storage. Cuts with high levels of terminal vacuum were superior (p 〉 0.05) to those wrapped with PVC film in: freedom from surface discoloration (5–9 days), overall appearance (5–9 days), bacterial counts (7–9 days), and trim losses (7–9 days). Vacuum packaged cuts which were leakers (no terminal vacuum) did not differ from those wrapped with PVC film in any appearance trait (5–9 days) but sustained increased (P 〉0.05) purge loss after 5–6 days of transit-storage. Short interval (5–6 days) transoceanic beef shipments can be consummated with acceptable product condition in normal atmosphere vans and wrapped in PVC film; if longer transit-storage periods (7–9 days) prior to cutting are anticipated, cuts should either be vacuum packaged or wrapped with PVC film and shipped in modified atmosphere vans.
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 42 (1977), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Twelve batches of frankfurters were prepared to contain 10, 25 or 40% mechanically deboned (MDB) meat from each of four sources (young goat, old goat, mutton and pork) and compared to a control frankfurter batch comprised of manually deboned beef and pork. MDB pork (derived from neckbones, vertebrae and ribs which had been previously debohed manually) contained less (P 〈 0.05) moisture and protein as well as more (P 〈 0.05) fat, ash and calcium than old goat, young goat and mutton (all of which were obtained by mechanically deboning whole carcasses). There were no major differences in moisture, fat or protein among the 13 batches of frankfurters. Processing characteristics (extent of fatting-out, ease of peelability, external surface color) differed very little when frankfurters containing MDB goat or MDB mutton were compared with control frankfurters. Frankfurters containing 10% MDB pork were acceptable in processing traits, but those containing 25% or 40% of MDB pork were very susceptible to mechanical deformation. Consumer panelists (n = 95) generally preferred or did not dislike the flavor, juiciness and texture of frankfurters containing 10, 25 or 40% MDB goat (young or old); 10, 25 or 40% MDB mutton; or 10% MDB pork when compared to control frankfurters. Frankfurters containing 25% or 40% MDB pork were assigned lower (P 〈 0.05) palatability ratings than were control frankfurters. Data suggest than desirability of MDB meat for use in processed meats may depend more on the proportion of bone in the meat that is mechanically deboned than upon differences in species.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 42 (1977), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Boneless strip loins (n = 90) and inside rounds (n = 90) from Heavy-Choice, Heavy-Good and Light-Good carcasses were randomly assigned to one of six treatments representing combinations of storage interval (7 or 14 days), blade tenderization (prior to or following storage) and packaging (vacuum packages or polyethylene bags). Vacuum packaging was much more satisfactory than polyethylene packaging for maintaining appearance of subprimal cuts following storage and for assuring desirable overall appearance of steaks during retail display. Subprimal cuts should be blade tenderized after, rather than prior to, storage to minimize weight losses of subprimals during storage, but time of blade tenderization did not affect retail caselife or palatability traits. Light-Good beef was not generally inferior to that from Heavy-Choice or Heavy-Good carcasses in storage-life, retail caselife or palatability if subprimal cuts were stored in vacuum packages. However, Light-Good strip loins which were blade tenderized prior to storage and stored in polyethylene bags were discolored and unattractive following storage and produced steaks which had very limited retail caselife. Blade tenderization increased tenderness above that achieved by aging alone but did not otherwise affect palatability.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 42 (1977), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Ground beef patties containing 10, 20 or 30% textured soy protein (TSP); 10, 20 or 30% mechanically deboned beef (MDB); or combinations of 10% TSP plus 10% MDB, 20% TSP plus 20% MDB, or 30% TSP plus 30% MDB were evaluated for chemical composition, raw product appearance, cooking characteristics and palatability. Raw patties containing 20% or 30% TSP were lighter in color than control (all-beef) patties and therefore received lower overall appearance ratings. Raw patties containing 10% or 20% MDB were significantly darker in color and finer in visual texture than control patties, Raw patties containing combinations of TSP and MDB were generally acceptable in color but too fine in visual texture which lowered overall appearance ratings at the 40% and 60% (TSP plus MDB) substitution levels. Proximate analysis indicated that cooked patties containing TSP retained more moisture but lost more fat than controls, whereas patties containing 10% or 30% MDB lost slightly less fat during cooking than all-beef patties. In comparison with control patties, cooking losses. were lower for patties containing 10% or 30% MDB. Cooking losses were similar for patties containing both TSP and MDB and for patties containing TSP alone. Taste panel evaluation indicated that addition of 20% or 30% TSP decreased flavor desirability and overall palatability ratings. Blended patties containing 20% or 30% MDB had less desirable ratings for taste panel texture than all-beef patties, These data suggest that 10% TSP plus 10% MDB can be added to ground beef patties without significantly affecting overall appearance of raw product, surface area shrinkage during cooking, cooked patty appearance or palatability traits.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 42 (1977), S. 0 
    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 effect of electrical stimulation (100 volts, 5 amps for approx 84–100 set) of beef, lamb and goat carcasses on meat palatability was evaluated. Twenty-nine steers, 14 lambs and 11 goats were slaughtered, split into sides and one side from each carcass was electrically-stimulated immediately before chilling by use of a commercial stunning device. Taste panel evaluation and Warner-Bratzler shear values indicated that longissimus muscle samples from electrically stimulated sides of all three species were significantly more tender than samples from the untreated sides. Tenderness ratings for samples from the legs of lamb and goat carcasses indicated that the differences between treated and control samples were not of the same magnitude as those for samples of the longissimus. Flavor ratings for samples from electrically stimulated sides were significantly higher (P 〈 0.01) for beef; however, no significant differences were observed between samples from treated and cqntrol sides of lamb and goat carcasses. These data suggest that electrical stimulation can be utilized to improve the tenderness of beef, lamb and goat carcasses.
    Type of Medium: Electronic Resource
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  • 10
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 44 (1979), S. 0 
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Estimates were made of panel variation and of repeatability for an untrained sensory panel using beef loins as the test product. Prior to testing, the beef loins were placed in one of three groups (tender, intermediate, tough) based on Warner-Bratzler shear value. The sensory panel evaluated each steak for juiciness, tenderness, connective tissue amount, flavor desirability and overall desirability using an eight-point scale. The accuracy of the untrained panel was not different from the accuracy of trained sensory panels. A considerable amount of variation was observed for individual judges, but this did not affect the accuracy of the panel as a whole. The repeatability of the panel and of individual judges was used as a measure of precision. The repeatability of the whole panel was much higher than the repeatability of the individual judges. Tenderness was found to be the most repeatable palatability characteristic evaluated. The panel as a whole and each individual judge were more repeatable or precise in their evaluation of nine samples per session than three samples per session. This indicates that no panel fatigue occurred during this study. Repeatabilities for the panel and the individual judges were found to be higher for the tougher loins than for more tender loins.
    Type of Medium: Electronic Resource
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