CHANGES IN POSTMORTEM QUALITY INDICES IN FINESCALE TRIGGERFISH MUSCLE STORED IN ICE

Postmortem changes of Finescale triggerfish muscle during 20 days of storage at 0C were evaluated by monitoring changes in chemical, biochemical and microbiological parameters. The K value increased linearly from an initial value of 3.5% to 43.3% at day 20. pH fluctuated from 6.38 to 6.55. TMA‐N and TVB‐N remained below critical limits with final values of 1.18 mg TMA‐N/100 g muscle and 29.7 mg TVB‐N/100 g muscle, respectively, suggesting a low microbial activity. Composition of muscle protein fractions was not affected during the storage period; however, an initial high level of alkali‐soluble protein was detected. The overall results indicated that triggerfish has excellent shelf‐life on ice.     

名利场中的设计圈

代表一:名利结合 大品牌邀请明星参与设计部分新品,是近年来的趋向——这比以前单是高价请人来拍几个广告的手法高明多了.既能在拍摄期间吸引更多娱乐时尚媒体关注,又能在产品推出市场后吸引更多粉丝来追捧,可谓是更深入地发掘并利用了明星效应. 如麦当娜这般的天后级人物早就已经与零售业巨头H&M合作设计过衣服,该系列上架后瞬间抢购一空,绝对是商业战略上的双赢.如今,麦当娜又与之前合作过平面广告拍摄的Dolce&Gabbana一起,联手推出了最新款的太阳镜.本身就是太阳眼镜狂热爱好者的麦当娜,设计起自己的“心头好”自然得心应手.现在正值太阳眼镜出镜颇高的季节,相信这款眼镜可以为你加分不少.这款太阳镜在Dolce&Gabbana的专卖店里都可以寻得到.     

活性氧在造纸废水处理中的应用

本文阐述了活性氧的性质、活性氧的生产方法、活性氧在造纸废水处理中的应用，并提出了用活性氧处理造纸废水的流程。     

DETERMINATION OF ETHANOL IN BEVERAGES LOW IN ALCOHOL

Two methods for the determination of ethanol in beverages low in alcohol have been assessed by the Analysis committee and are recommended for use.     

IN潮流

珠宝镜框 炫丽亮眼；D＆G黑框眼镜的性感席卷而来；2009春夏配饰潮流；香奈儿无限定义的全新风格手袋系列;大牌盛开缤纷繁花;     

AFLATOXIGENIC ASPERGILLI IN FOODS AND FEEDS IN UGANDA

Studies conducted during the sixties and the seventies on food crops in Uganda showed that the populace was exposed to consumption of aflatoxin-contaminated foods. These studies also linked the highest incidence of liver cancer in the world to the presence of high levels of aflatoxins in the food and beverages. After a lapse of a decade, it was of interest to investigate the occurrence of aflatoxins and aflatoxigenic fungi in staple Ugandan food crops and poultry feeds derived from these foodstuffs. A simple, rapid and reproducible procedure was used. The procedure consisted of growing or culturing feed grains on a selective medium, Aspergillus flavus/parasiticus agar (AFPA) followed by screening for aflatoxin producing fungi on a coconut agar medium (CAM) under UV light with a subsequent confirmatory screening method for aflatoxin production by the fungi in pure culture. Fifty-four samples consisting of corn and peanuts, soybean and poultry feed were analyzed for content of aflatoxigenic. A. flavus/parasiticus and 25 of the samples were also screened for aflatoxins B₁ and G₁, zearalenone, sterigmatocystin, ochratoxin A, citrinin, vomitoxin, and diacetoxyscirpenol (DAS). Aflatoxigenic A. flavus/parasiticus was detected from the majority of corn (77%), peanuts (36% human food and 83.3% animal feed) and poultry feed (66.6%). but not from soybean samples. Two samples out of 25 contained detectable levels of aJatosin B, (20 ppb). For the jirst time other mycotoxins, zearalenone (3 samples) and vomitoxin (2 samples) were detected in corn from Uganda.     

高温加热食品丙烯酰胺问题的探讨

丙烯酰胺对人和动物是一种有效累积性神经毒物，近年来研究发现在高温加热食品中有丙烯酰胺产生，本文介绍了高温加热食品中丙烯酰胺的形成机理、影响其形成的各种因素以及测定其含量的各种方法，最后提出了降低丙烯酰胺的一些措施．     

NITRATE AND NITRITE CONTAMINATION IN VEGETABLES IN CHINA

This paper reviews recent studies of nitrate and nitrite contamination in Chinese vegetables. Nitrate and nitrite contamination is very serious and increases the amount of nitrogenous fertilizer applications. Factors influencing nitrate and nitrite contamination in vegetables are analyzed and discussed.     

NITRATE AND NITRITE CONTAMINATION IN VEGETABLES IN CHINA

This paper reviews recent studies of nitrate and nitrite contamination in Chinese vegetables. Nitrate and nitrite contamination is very serious and increases the amount of nitrogenous fertilizer applications. Factors influencing nitrate and nitrite contamination in vegetables are analyzed and discussed.     

VARIATION IN pH AND LACTATE LEVELS IN MALTS

Malt pH, defined as the pH of worts prepared by the Institute of Brewing Methods of Analysis, was examined in commercial malts from a single malting plant over four crop years, 1990 to 1993. Batch to batch variability was found, in addition to a distinct pattern within two of the years, with a gradual decrease in the winter months following commencement of malting of the new crop barley, followed by a subsequent increase in the late summer. Variability in pH and the longer term trend were not related to any measured processing variables or characteristics of the barley used for malting. Possible reasons for the differences in pH were examined and a negative relationship between malt pH and wort lactate content was demonstrated in a selection of malts from two crop years. A method is proposed for extraction and purification of lactate directly from malt and using this method it was shown that lactate in wort derives mainly from malt with only small amounts being produced during mashing.     

鞣制材料及成品革中甲醛的研究

甲醛通常是用于合成鞣剂制备的一种基本原材料。即使目前的工业生产过程采用电脑进行控制,但也可能在最终产品中含有甲醛。甲醛是一种对于人体或其他生物极具危害性的物质。因此,在一些强制性条文中明确规定了这种物质在成品革中的最大含量以及测定其存在所应参照的分析方法。然而皮革中甲醛含量的测定方法不能完全适用于鞣剂产品中甲醛含量的测定,实际上会有很多因其他物质的存在而产生的干扰因素。所以不可能把鞣剂材料中甲醛含量和成品革的甲醛含量之间进行比较。论文对以上这些因素的数据进行了研究,旨在降低鞣剂产品及其所生产皮革中的甲醛含量。