鳙鱼鱼肉粒赋形剂及调味配方的研究

通过实验发现,赋形剂按3％马铃薯淀粉、3％麦芽糊精、1.5％卡拉胶,调味料按2.5％食盐、3％食糖、1％辣椒粉、0.5％五香粉配比制成的鳙鱼肉粒边角整齐,不易破碎,经咀嚼口感结实且软硬程度适中,质地均匀,无粉质感,有嚼劲,鱼肉粒成甜协调,鲜辣适口,鱼香味突出,色泽和风味纯正,是一种理想的休闲食品,有很大开发价值,同时也为低值淡水鱼产品的开发提供了一条新的途径.     

鳙鱼鱼块油煎工艺的研究

以鳙鱼鱼块为研究对象,以质构、色差、水分含量、硫代巴比妥酸值(TBA)及感官评定为评价指标,研究了腌制液糖浓度、油煎温度及油煎时间对产品品质的影响,并确定了最佳的油煎工艺。结果表明:鳙鱼鱼块最佳腌制液糖浓度为3%,最佳油煎条件为油温180℃左右油煎5min,此条件下得到的产品品质最佳。      

Bioactive fatty acids of three commercial scallop species

The fat content and fatty acid profile of commercially important scallops Flexopecten glaber, Mimachlamys varia, and Pecten jacobaeus were investigated in samples of adductor muscle, gonad, mantle, and viscera. The viscera showed the highest lipid content in all species examined. Signi?cant differences were found in the fatty acid composition among tissues and among scallops. All pectinids exhibited high levels of eicosapentaenoic and docosahexaenoic acids in the adductor muscle, with a maximum value of 211 mg/100 g tissue and 252 mg/100 g tissue in the viscera of F. glaber. Highest n3/n6 ratios were recorded in F. glaber gonad and viscera, in P. jacobaeus muscle, and in the gonad of M. varia. M. varia adductor muscle had the lowest values of atherogenicity and thrombogenicity indices used as indicators of beneficial health effects. These data contribute to the overall evaluation of the nutritional quality of scallops and suggest that their consumption may provide health benefits.     

Exploitation of essential oil extracted from Tunisian Laurus nobilis for the development of PET antibacterial sutures

The main purpose of this study is the use of a Tunisian bio resource for the improvement of mechanical and physical properties of braided polyethylene terephthalate (PET) sutures. In this study, antibacterial PET sutures were developed using Tunisian essential oil of Laurus nobilis. A new lubrication process was proposed for this fact. The essential oil of L. nobilis was selected because of its antibacterial properties as well as analgesic, antiseptic, antiviral, and anti-infectious proprieties. Optimized extraction process of essential oil was also determined. Characteristics and cytotoxicity of extracted essential oil were also investigated. In order to study the impact of lubrication conditions on PET suture performances, mechanical properties and antibacterial effects of braided sutures were studied. The obtained results prove that sutures lubrication improves suture knot efficiency and leads to smoother surface. Developed sutures show also obvious antibacterial effect against Staphylococcus aureus ATCC 6538 G (+) colonies.     

凤眼果壳多酚的抗氧化和抗人肺癌细胞A549增殖活性

本研究以凤眼果壳为原料,提取凤眼果壳游离态和结合态多酚,通过不同极性有机溶剂萃取游离态多酚获得四相提取物,分别是正己烷相(HF),乙酸乙酯相(EAF),正丁醇相(BF)和水相(AqF).测量游离态、结合态和萃取后的四相提取物的总多酚和总黄酮含量,结果表明游离态的多酚和黄酮含量均比结合态高.萃取后的四相提取物中,EAF的...