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41.
42.
Sensory and Cooking Properties of Lamb Chops Cooked With and Without External Fat and Epimysium 总被引:1,自引:0,他引:1
When lamb loin chops with or without 0.64-cm subcutaneous fat layer and epimysium (fat-on or fat-off chops) were broiled to an internal temperature of 77°C, cooking losses were higher (P<0.05) for fat-off chops than for fat-on chops. The concentration of ether-extractable fat (g/100g cooked lean) was also higher for the cooked lean from fat-off chops while the opposite was observed for moisture. Sensory properties of the cooked lean were adversely affected by the removal of subcutaneous fat before cooking. TBA-reactive substances in a given amount of the cooked lean, after 4 days of storage at 4°C, were slightly higher (P<0.10) for the lean from fat-off chops than for the lean from fat-on chops. 相似文献
43.
Succinylated cottonseed protein isolates (40% and 54% modification of amino groups of control isolate) were prepared under pilot scale processing conditions. Partial succinylation of cottonseed flour increased the yield of protein isolate in isoelectric precipitation (pH 4.5). The succinylated isolates were more water soluble, less heat-coagulable in water, and lighter in color as compared to conventional isolates. They also showed improved functional properties including higher oil absorption, emulsion capacity, gel strength, water hydration, water retention, and viscosity. Bulk density was decreased and resulted in fluffy isolates. 相似文献
44.
This study was conducted to evaluate chemical, physical, nutritional, and sensory properties and storage stability of expanded extrudates produced from blends of nonmeat ingredients and lamb, pork or beef. Raw material blends contained 24.2% lean meat, 22% corn starch, 49.75–50.24% defatted soy flour, 0–0.62% separable meat fat, and 3.40–3.58% added water, and processed at 162C. Total fat contents of dried extrudates containing lamb, pork, and beef (their extrudates designated as L, P, and B) were 4.51, 4.29, and 3.83%, respectively. Bulk density and sensory hardness scores were greater for L, the extrudates with more fat. L and P exhibited less lipid oxidation than B. This difference was not associated with product fat content or fatty acid composition; L and P contained more fat than B and the fat in P was more polyunsaturated. 相似文献
45.
Properties of Low-Fat Frankfurters Containing Monounsaturated and Omega-3 Polyunsaturated Oils 总被引:3,自引:0,他引:3
Properties of low-fat (<18%) frankfurters containing high-oleic acid sunflower oil (HOSO) and fish oil were studied. Replacement of animal fats by the oils had little effect on emulsion stability. Frankfurters with 5% fish oil had very low sensory scores due to undesirable fish flavor. Incorporation of maximum amounts of HOSO into low-fat beef/pork and all-beef frankfurters increased oleic acid by 34% and 62%, respectively, and the monounsaturated/saturated fatty acid ratio by 178% and 468%, respectively, compared to a regular (30% fat) product containing only animal fats. Sensory evaluation and instrumental texture profile analysis showed that the reduction in total fat caused texture problems, especially increased firmness and springiness and decreased juiciness. 相似文献
46.
Restructured pork slices made with either prerigor or postrigor meat, with or without 1.5% of defatted glandless cottonseed flour (GCF). were batter-breaded with or without GCF in predust and batter-mix: Prerigor products had less cooking losses than postrigor products; GCF in the meat or coating reduced cooking losses. Prefried prerigor products were more susceptible to lipid oxidation and warmed-over flavor development than prefried postrigor products. GCF in the meat or coating markedly reduced the oxidative deterioration in nuggets stored at 4°C or ?20°C regardless of the rigor state of meat used for restructuring. Little lipid oxidation occurred in vacuum-packaged raw nuggets stored at ?20°C. 相似文献
47.
Restructured beef nuggets were batter-breaded and deep-fried in commercial cottonseed oil (CO), cottonseed liquid shortening (CLS), soybean oil (SO) and soybean liquid shortening (SLS) and stored at 4C for 0 or 4 days. Weight losses during frying and reheating were not significantly influenced by the frying medium used. No major sensory differences were noted among the different products except that, on day-0, nuggets fried in SLS had a "slight" warmed-over flavor due to the reversion flavor of the frying medium itself. On day-0, nuggets fried in CO or CLS had lower TBA values than those fried in SO or SLS. However, on day-4, nuggets fried in CLS or SLS had lower TBA values than nuggets fried in CO or SO. CLS may be the frying medium of choice among the four because of its ability to resist lipid oxidation in both fresh fried and stored nuggets. 相似文献
48.
Effects of feed moisture, fat and corn starch levels and process temperature on physical properties of extrudates of defatted soy flour-amylose corn starch-raw beef blends were investigated using response surface methodology. Contour plots showed a convex curve of expansion ratio (ER) with moisture, concave curves of bulk density (BD) and shear-force (SF) with moisture, and concave cmves of SF with each of the four extrusion variables. Fat decreased ER and increased BD, whereas corn starch increased ER. Products with high ER and low BD and SF tended to have prominent air cells, continuous protein matrices, and smooth cell wall surfaces in scanning electron micrographs. The optimum extrusion conditions for minimal SF values, with 20% non-dehydrated beef muscle and varied amounts of defatted soy flour, were: 29.1% feed moisture; 2.96% feed fat; 22% feed corn starch; and 162°C process temperature. 相似文献
49.
Lamb, beef, and pork patties containing ≈ 21% fat were pan-fried to 71C and evaluated by consumers (n=71) and experienced laboratory sensory panelists (n=12) to determine to what extent panelists could correctly identify the species and to document the probable basis of their identification. When six samples (the first three samples representing the first servings of the three species and the next three representing the second servings) were served one at a time, 59%, 49%, and 32% of consumer panelists correctly identified both servings of lamb, beef, and pork, respectively, compared to 67%, 50%, and 33%, respectively, by experienced laboratory panelists. Sensory attribute scores and correlation data on correctly identified samples indicated that flavor intensity of lamb and pork patties did not have positive effects on their overall palatability, whereas flavor intensity of beef patties had positive effects. Lamb patties were rated most intense in flavor and lowest in overall palatability. 相似文献
50.
Ground chicken breast and beef top round (semimembranosus) muscles were treated with CaCl2 (0.05, 0.10, 0.15, and 0.20% on final sample weight basis) and cooked to an internal temperature of 80C. Cooked samples were aerobically stored at 4C for 0 or 4 days and analyzed for 2-thiobarbituric acid (TBA)-reactive substances. Results indicated that CaCl2 can either inhibit or accelerate lipid oxidation in cooked meat depending on its concentration/meat animal species. TBA values of chicken samples were decreased by CaCl2 used at ≥ 0.1% of final weight. However, only beef samples treated with the highest CaCl2 level (0.20%) tended to have lower TBA values when compared to control samples (treated with deionized water only). CaCl2 used at low levels (0.05% for chicken and ≤0.15% for beef) tended to elevate cooked meat TBA values. 相似文献