Determination of biogenic amines in selected Malaysian food

The biogenic amines tryptamine (TRP), putrescine (PUT), histamine (HIS), tyramine (TYR) and spermidine (SPD) were determined in 62 selected food items commonly consumed in Malaysia. This include the local appetisers “budu” and “cincalok”, canned fish, salt-cured fish, meat products, fruit juice, canned vegetables/fruits and soy bean products. After the aqueous extraction, the samples were derivatised with dansyl chloride before analysing using reversed phase HPLC with UV detection. Mean levels of TRP, PUT, HIS, TYR and SPD in eight budu samples were 82.7, 38.1, 187.7, 174.7 and 5.1 mg kg⁻¹, respectively. The main biogenic amines found in cincalok were PUT, HIS and TYR where the mean values were 330.7, 126.1 and 448.8 mg kg⁻¹, respectively. With the exception of “pekasam” and “belacan”, significantly lower levels of biogenic amines were found in canned fish and salt-cured fish samples. Non detectable or low levels of biogenic amines were found in meat, fruit juice and canned vegetables/fruit samples.     

新型食品试验箱的研制及其控温性能试验分析

新型食品试验箱是常压下工作的高低温型试验用小型制冷装置。为使箱内空气温度在给定的时间内达到-30℃,试验箱选用了高效顶置式冷风机和新冷媒全封闭低温压缩机和电子膨胀阀。试验箱同时配有全自动的微机数据采集系统能完成各项温控试验的数据记录。     

Aminocarminic acid in E120-labelled food additives and beverages

An analytical method was developed for investigating aminocarminic acid occurrence in E120-labelled red-coloured-beverages and in E120 additives, with the aim of controlling the purity of the carmine additive in countries where the use of aminocarminic acid is forbidden. The carminic acid and the aminocarminic acid were separated by high-performance liquid chromatography–photodiode array–tandem mass spectrography (HPLC-PDA-MS/MS). The method was statistically validated. The regression lines, ranging from 10 to 100?mg/L, showed r^2?>?0.9996. Recoveries from 97% to 101% were obtained for the fortification level of 50?mg/L; the relative standard deviations did not exceed 3%. The LODs were below 2?mg/L, whereas the LOQs did not exceed 4?mg/L. The method was successfully applied to 27 samples of commercial E120-labelled red-coloured beverages and E120 additives, collected in Italy during quality control investigations conducted by the Ministry. The results demonstrated that more than 50% of the samples contained aminocarminic acid, evidencing the alarming illicit use of this semi-synthetic carmine acid derivative.     

葡萄酒抗氧化的研究进展

氧化问题是造成衰老和心血管疾病的主要原因。葡萄酒作为抗氧化良品在一定程度上可以抗衰老和减少疾病发生。该文介绍近几年,葡萄酒的最新研究进展。从抗氧化能力研究方法、抗氧化机制、葡萄酒不同成分的体外抗氧化作用、生物体(动物和人)内的抗氧化作用4个方面介绍了葡萄酒抗氧化方面的研究进展。最后综合分析当前研究情况,并展望葡萄酒抗氧化研究的发展方向。     

发展有机食品提高农副产品附加值

本文简介了"三农"问题、食品安全问题、绿色贸易壁垒问题,分析了发展绿色、有机食品是解决上述问题的有效措施之一,并提出了发展绿色、有机食品的具体措施。     

生物表面活性剂及其在食品工业中的应用

生物表面活性剂是一类由微生物产生的应用潜力巨大的新型的表面活性剂,具有降低表面张力的作用,对环境无毒害,且生物降解性能好,其应用研究将有广阔的发展前景。     

一种低脂酸奶冰淇淋的配方及生产工艺

研究了一种以冰淇淋基料，糖基料及酸奶基料按比例混合后制作的冷冻饮品。并详细介绍了其配方及生产工艺。该产品的特点为低脂，带活性乳酸菌，是一种深受消费者喜爱的健康型冷冻饮品。     

食品安全管理协同保障措施的探讨

本文论述了企业作为食品责任承担第一者,在解决好食品安全问题上必须通过道德和自律,以及依法监管来实现对危害的防范和对风险的控制。     

食品机械标准化现状与“十三五”发展思路

本文从食品机械标准化发展现状出发,总结了"十二五"期间食品机械标准化主要成就,分析了存在的主要问题,研究了"十三五"期间发展思路,包括指导思想、基本原则和发展目标,提出了保障措施,供业内同行技术人员、管理人员所借鉴。     

凝胶多糖的性质及其应用的研究进展

凝胶多糖是一种天然的微生物胞外多糖,具有独特的理化性质及免疫刺激活性。对凝胶多糖的性质及其在食品、医药、农业、化工、建筑等领域的研究进展进行了介绍,并展望其在国内外的应用前景。