电影《焦裕禄》中焦裕禄的人物形象分析

人物形象是人物传记电影所要表现的主题。形象的表现可以是多方面的,有人物本身的性格特点或者也可以是其他事件和角色所反衬出塑造的人物形象。从影片中主人公焦裕禄的人生信仰为切入点,分析电影《焦裕禄》中人物形象的塑造以及焦裕禄精神的当代价值。     

耐盐微生物对鯷制鱼露风味形成的影响

研究了鯷制鱼露中的耐盐微生物(耐盐乳酸菌M1、M2和耐盐产蛋白酶菌T1)对其发酵初期挥发性风味物质形成的影响。将从鱼露发酵液中分离出来的耐盐微生物经过扩大培养后添加到鱼盐混合物中进行鱼露发酵。在发酵初期,总酸、氨基酸态氮、总氮、非酶褐变指数等理化指标都明显优于未添加发酵剂的空白对照鱼露发酵液。用气相色谱-质谱联用(GC-MS)分析其挥发性风味物质。结果表明,鱼露初期发酵液中分离出来的耐盐乳酸菌M2、产蛋白酶菌T1对鱼露挥发性特征风味成分的形成,尤其是挥发性酸的形成有积极的贡献,而自然发酵的鱼露则很难在发酵初期产生特征挥发性风味物质。     

Biogenic amines in commercially produced Yulu,a Chinese fermented fish sauce

Seven biogenic amines were determined in 35 commercially produced Yulu samples from three provinces of China by pre-column derivatisation with dansyl chloride (Dns-Cl) and high-performance liquid chromatography with fluorescence detection (HPLC-FLD). Putrescine, cadaverine, histamine and tyramine were the major biogenic amines (more than 100 mg kg^?1), while tryptamine, spermidine and spermine were regarded as minor biogenic amines (less than 25 mg kg^?1). Twenty samples contained more than 50 mg kg^?1 histamine (the limit for histamine in seafood products as suggested by the Food and Drug Administration). Twenty-one samples contained more than 100 mg kg^?1 tyramine and 10 contained more than 1000 mg kg^?1 total biogenic amines. This study provided data on biogenic amine levels in Chinese fermented fish sauce. The results suggested that biogenic amine content should be monitored in commercially produced Yulu.