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  • 1
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 64 (1999), 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: Color changes in irradiated meat were species-dependent. Irradiated pork and beef became less red as a result of irradiation and display time. The redness values of turkey increased after irradiation but decreased during display time. The yellowness of the irradiated samples, for all species, increased as a result of irradiation and display. Visual evaluation of irradiated pork and beef indicated an increase in brownness, whereas turkey increased in redness as dose increased. The surface color of irradiated pork became less uniform than unirradiated pork. Reflectance spectra indicated that irradiation induced a metmyoglobin-like pigment in pork and beef, whereas the pigment in turkey was unchanged.
    Type of Medium: Electronic Resource
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  • 2
    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 were formulated with 20% fat, formed on a pattie machine at 113g each (4/lb) and frozen either by liquid nitrogen or liquid carbon dioxide in a cryogenic tunnel at -74°C or by a walk-in mechanical freezer at -29°C. Composition, TBA numbers, shrinkage and taste panel scores evaluated at 0, 30, 60, 90 and 120 days after manufacture showed a significant reduction in quality for the mechanically frozen patties when compared with the cryogenic methods. There was no difference between liquid nitrogen and liquid carbon dioxide for quality retention by ground beef patties.
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 43 (1978), 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: A water-soluble extract was prepared from a cured meat product which had been manufactured with 15N-labelled nitrite. Fractionation of this extract on Sephadex G-10 showed one large and one small peak of 15N content, neither of which contained free nitrite. The two 15N containing peaks did not coincide with the ninhydrin positive or ultraviolet absorbing fractions that were eluted. Examination of the labelled fractions for sulfhydryl groups also proved negative and inhibition of Clostridium botulinum was not accomplished by either of the fractions.
    Type of Medium: Electronic Resource
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  • 4
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 41 (1976), 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: This paper presents results showing that one of the major pathways for loss of nitrite in cured meats may be through reaction with nonheme protein. Incorporation of the stable isotope 15N from nitrite is shown to occur in both bovine serum albumin and the muscle protein myosin, at pH's below and at those found in cured meat. In bovine serum albumin solution at pH 5.5 and at 20°C, 60% loss of added nitrite (200 ppm) occurred within 1 wk and almost half of the lost nitrite nitrogen was recovered as 15N chemically bound to the protein. Analysis of the reaction products of nitrite and myosin showed that, under the conditions used, 10–20% of the incorporated nitrogen was present as 3-nitrotyrosine. Several other products were found in acid hydrolysates of protein containing bound nitrite, but these did not appear to quantitatively account for the remainder of the incorporated nitrite.
    Type of Medium: Electronic Resource
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  • 5
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 38 (1973), 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
    Type of Medium: Electronic Resource
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  • 6
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 47 (1982), 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: Bacon was produced with either 40 ppm NaNO2/0.26% potassium sorbate, or 120 ppm NaNO2. Slices were packaged in either nylon/Surlyn or nylon/Saran/Surlyn pouches and sealed at either a high or intermediate vacuum level. At 0, 10, 21 and 28 days after packaging, residual nitrite, rancidity, pH, residual salt and pigment conversion were measured. Residual nitrite and pH were lower while nitrosopigment conversion was higher in bacon packaged with the high-barrier film. Vacuum level, however, had no effect on any measured characteristic. The sorbate/reduced nitrite cure resulted in lower pigment conversion, lower residual nitrite, and a higher TBA number.
    Type of Medium: Electronic Resource
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  • 7
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 63 (1998), 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: Changes in color of irradiated meat were observed to be species-dependent. Irradiated pork and turkey became redder due to irradiation but irradiated beef a* values decreased and yellowness increased with dose and storage time. The extent of color change was irradiation dose-dependent and was not related to myoglobin concentration. Visual evaluation indicated pork and turkey increased in red ness whereas beef decreased in redness as dose levels increased. Reflectance spectra showed that irradiation induced an oxymyoglobin-like pigment in pork and that both oxymyoglobin and metmyoglobin developed in beef as a result of irradiation.
    Type of Medium: Electronic Resource
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  • 8
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 61 (1996), 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: Increasing salt concentration from 1.5 to 2.5% increased the emulsion stability of frankfurters made with lean finely textured tissue (LFTT). Sodium tripolyphosphate (STPP) at 0.25% improved stability and texture as well as processing and consumer cooking yields. Kappa (K)-carra-geenan (0.5%) reduced cooking losses and increased firmness. Isolated soy protein (ISP) at 2% also improved product stability and firmness but lowered sensory scores. The effect of ISP on sensory scores was greater for those frankfurters produced from lean finely textured beef than for those with lean finely textured pork. Increasing NaCl concentration or including STPP and K-carrageenan may improve comminuted meat products which contain 50% LFTT substituted for lean meat.
    Type of Medium: Electronic Resource
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  • 9
    Electronic Resource
    Electronic Resource
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 61 (1996), 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 pork chops were dipped for a target absorption of 0.5% sodium tripolyphosphate (STPP), 550 ppm sodium ascorbate (SA), or 0.1% potassium sorbate (PS) prior to irradiation (1.0 kGy). Untreated pork chops, both irradiated and unirradiated, were used as controls. Dipping with STPP decreased drip loss and improved color and lipid stability of irradiated chops and resulted in better tenderness and juiciness scores than undipped, irradiated samples. Also, STPP treated chops had similar or better physicochemical and sensory properties than untreated (no irradiation, no dipping) controls. Dipping with SA or PS had little effect compared with STPP, but improved some sensory qualities.
    Type of Medium: Electronic Resource
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  • 10
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: Fatty acid profiles and proximate composition were determined at seven carcass locations from 64 pigs. Fatty acid composition was not altered by PST treatment (P 〉 0.05). The more unsaturated outer layer of subcutaneous fat was present in a greater proportion in the PST-treated pigs. Adipose tissue fat content was decreased (P 〈 0.01), whereas percentage moisture and protein was increased (P 〈 0.01), by PST. Boneless ham characteristics did not differ among treatment groups (P 〈 0.05). Pepperoni from PST pigs dried more efficiently and was harder than control pepperoni. Bacon from PST pigs contained less fat and was softer than control bacon. Difference in texture of products, particularly bellies for bacon from PST-treated pigs, seemed to be a result of an altered proximate composition.
    Type of Medium: Electronic Resource
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