水产调味品鲫鱼汁的研制

随着人们生活水平的提高,对食品质量的要求也在不断的提高,调味品在食品质量中扮演着非常重要的角色。本实验以普通养殖鲫鱼为主要原料,研究水产调味品鲫鱼汁的最佳工艺。通过正交试验和感官评价,最终得到水产调味鲫鱼汁的最佳配方:黄原胶0.04%,鲫鱼汁30%,盐15%,糖5%,谷氨酸钠5%,5′-肌苷酸0.25%,叶黄素0.03%,鱼味香精0.03%,山梨酸钾0.05%,均质压力35MPa。水产调味品鲫鱼汁质地均匀,口感细腻,鱼鲜风味突出,色泽淡黄,气味芬芳,符合人们对于风味和营养的需求,具有广阔的市场前景。     

Growth performance,carcass traits,physiochemical characteristics and intramuscular fatty acid composition of finishing Japanese black steers fed soybean curd residue and soy sauce cake

This study was conducted to determine the effects of dietary soybean curd residue (SCR) and soy sauce cake (SSC) on the growth performance, carcass traits and physiochemical and intramuscular fatty acid (FA) characteristics in Japanese Black steers. Ten steers (29.7 ± 0.3 months old, 856.6 ± 24.4 kg body weight) were assigned to either treatment C, fed a conventional concentrate or T, fed the test diet including dried SCR and SSC for 3 months. In growth performance, dry matter (DM) intake and average daily gain, and carcass traits did not differ significantly between the treatments. Color of beef was affected by the dietary treatments and meat samples from T showed higher a^* value and chroma than those in C. On FA composition, there was no significant difference between the treatments in neutral lipids, whereas in polar lipids, meat samples from T had higher C16:1 (P < 0.05) and tended to have higher C16:0 (P = 0.05) and C18:1 (P = 0.08), but lower C17:0 (P = 0.098), C18:2 (P = 0.06) and C20:4 (P = 0.07) than those from C. The study suggested that SCR and SSC could be used as a substitute for conventional concentrate and would influence meat color and intramuscular FA composition of polar lipids.     

固液混合油辣椒多相流灌装的数值模拟

以固液混合油辣椒多相流的灌装过程为主要研究对象,采用流体力学计算软件Fluent对其灌装过程进行数值模拟,分别对直径为36、48、60 mm的计量缸在灌装过程中的密度场、各相体积分数的分布状况进行研究。数值模拟结果表明:随着灌装机构计量缸直径的增大,灌装流场的密度均匀性变好,高密度和低密度区域明显减少,直径为60 mm的计量缸其固液混合油辣椒多相流流体的各相体积分数和密度分布比其他两种较好,体积分数与初始设定基本吻合,研究结果为灌装装置的结构设计和灌装工艺提供了理论依据。     

酱油渣不溶性膳食纤维的功能特性及其应用研究

研究酱油渣中不溶性膳食纤维的膨胀性、持水能力、持油性、亚硝酸根离子吸附性,以及阳离子交换能力等功能特性,及其在桃酥中的应用。结果表明,酱油渣不溶性膳食纤维具有较好的膨胀性、持水能力、持油性和一定的阳离子交换能力,对亚硝酸根离子的吸附性能随着时间的增加而增大,120min时的吸附性趋于饱和,吸附率高达83.24%,且在酸性条件下的吸附性能更佳。应用实验表明,在桃酥中添加适量的酱油渣不溶性膳食纤维,不仅对桃酥的口感、色泽及组织形态等方面的影响较小,而且其保健功能有很大的提高。     

酱卤肉制品连续式传输轨道关键技术研究

通过研究钢板式、PU式、网带式、双节距式等不同类型的传送装备对酱卤肉制品感官、微生物指标的影响,确定最佳传送装备为双节距式传送装备,以设备清洗方便性、清洗后食品接触面微生物水平、产品外观完整性为评价指标,调整并确定双节距间隙为0.5 cm;根据产品完整性和产能,确定双节距最佳传送速度15 m/min,显著提高了工作效率,同时提高了产品的感官特性。     

鲢及其加工废弃物发酵鱼露的比较

本研究分别以鲢全鱼及鲢鱼糜加工中的废弃物为原料发酵鱼露。测定了发酵过程中ｐＨ１Ｔ－ＶＢＮ以及氨基酸的变化情况,分析了产品的理化成份并比较了氨基酸组成。结果表明,以鲢全鱼和废弃物发酵鱼露过程中ｐＨ、Ｔ－ＶＢＮ以及氨基酸总量的变化情况基本相同。产品的感官评价结果无显著差异;全鱼发酵产品的氨基氮、总氮比由废弃物发酵的产品高,但是后者的氨基酸转化率、脂肪、红色指数以及呈鲜味的氨基酸占氨基酸总量的比例比前者高。     

鱼酱脱腥调味工艺研究

以低值淡水鱼为原料,添加日常调味料如姜汁、紫苏、食醋、辣椒、香叶、八角、味精、花椒粉等,综合开展鱼酱脱腥调味的影响研究,确定鱼酱脱腥工艺参数。结果表明:样品添加1%的姜汁,经蒸煮后,加入乙基麦芽酚0.05%,每250 g鱼酱添加含有紫苏水14%,香料水4%、料酒8%,食盐1.0%,辣椒酱3%,胡椒粉0.4%,味精0.6%,酱油2.5%的混合调味料,鱼酱成品感官评分显著升高(P<0.05),脂质氧化速度显著减慢(P<0.05),脱腥效果十分显著(P<0.05)。     

豆酱生产中HACCP体系的应用效果评价

本文以HACCP体系实施前、后两个不同时期的酱醅和成品豆酱为研究对象,对其各项理化指标及微生物指标进行检测,阐述HACCP体系在豆酱生产中的重要作用。结果表明:HACCP体系的实施对产品的各项理化指标影响不大,铅、砷等重金属含量均达到国家标准;体系的实施对于大肠菌群和菌落总数控制效果明显,HACCP体系实施前的产品中大肠菌群和菌落总数明显高于实施后的产品;体系实施前的酱醅产品中检出少量的沙门氏菌和蜡样芽孢杆菌,体系实施后的酱醅中未检出沙门氏菌和蜡样芽孢杆菌;体系实施前后各时期产品中均无黄曲霉毒素、肉毒梭菌、和金黄色葡萄球菌检出。通过HACCP体系的实施,产品的报废率明显下降,产品质量得到了有效控制。     

Quality aspect of fish sauce prepared from underutilized fatty Japanese anchovy and rabbit fish

ABSTRACT:   To explore the potential utility of underutilized fish in the fish sauce industry, fish sauces were prepared from both raw and heat-induced meat of Japanese anchovy Engraulis japonica and rabbit fish Siganus fuscescens using wheat malt, and their quality aspects and sensory properties were assessed. Proximate composition of the fish meat represents protein as the major component (16.0–17.8%), other than moisture. Analyses of free amino acids, peptides including oligopeptides, and organic acids contents in fish sauces revealed suitability of both raw and heat-induced meat of the selected species in commercial fish sauce production. The variations in taste of raw meat fish sauces were species-specific, but the taste of fish sauces from heat-induced meat were similar.     

鸡深层发酵制作营养酱油的研究

鸡(土从)连续发酵生产营养酱油,其最适接种量为20％,发酵时间7d;果胶酶和纤维素酶混合处理发酵液,可显著提高氨基态N和总N含量,氨基酸生成率达62.8％。