水产品中EPA、DHA的氧化和保护方法

介绍了水产品中的EPA和DHA的主要功能和应用价值,对加工过程中影响EPA和DHA氧化的因素进行了分析,并对EPA和DHA在加工过程中的保护方法进行了综述.     

MICROBIOLOGICAL AND PATHOGENIC CONTAMINANTS OF SEAFOOD IN GREECE

A total of 360 samples, including 105 marine fish, 25 prawns, 50 squid, 50 octopus, 30 mussels and 100 freshwater fish were examined microbiologically for the presence of microorganisms potentially pathogenic. All samples were examined following standard microbiological procedures. The isolated microorganisms were: Aeromonas hydrophilia (38–93%), Klebsiella ozonae (1–40%), Escherichia coli (14–87%), Yersinia enterocolitica (0–40%), Hafnia alvei (0–36.6%), Enterobacter agglomerans (0–42%), Citrobacter freundii (0–46%), Proteus vulgaris (15–80%), Proteus mirabilis (7–82%), Morganella morganii (0–30%), Pseudomonas fluorescens (0–34%), Pseudomonas putida (0–6%), Plesiomonas shigelloides (0–4%), Listeria innocua (1–3.3%), Vibrio parahaemolyticus (0–2%), Clostridium perfringens (0–1%), Staphylococcus aureus (0–80%) and Candida quillermondi (0–1%), Candida albicans (0–1%), Penicillium oxalicum (0–1%) and Penicillium italicum (0–12%).     

别具风格的海鲜都汇

安徽芜湖金四海鲜餐饮有限公司经营的金四海鲜楼是一家具有18年历史的品牌餐饮名店，以“锐意进取、开拓创新”为经营理念。餐饮面积近2500平方米，可同时容纳600人同时就餐，拥有装修豪华的包间40个和多功能大厅1个。食客可在尊贵幽雅的环境中，品尝高档的海鲜及浙、徽、川、粤及宫府菜等经典佳肴。     

蒸鱼豉油双城记 联袂演绎美妙味道!

李锦记蒸鱼豉油李锦记味蚝鲜李锦记蒸鱼豉油,精选上等黄豆酿造,调出鲜、咸、甜的黄金配比味道,上色饱满润泽、滋味悠长温和,解决上品菜肴复杂的调色、调味过程。李锦记味蚝鲜复合味蚝油汲取天然蚝汁精华和豉香融合,层次丰富、回口鲜甜。二者联袂使用能提升中式炒菜的档次和风味,烹饪出更多美妙味道,堪称珠联璧合。     

低过敏性海产食品的研究

综述了引起海产品过敏主要的过敏原及其特征，阐述了海产食品过敏原性的研究进展以及面临的困难和存在的问题，对低过敏性海产食品的开发途径进行了展望，为我国海产食品的深加工提供一定的参考。     

DENSITY of FRESH and FROZEN SEAFOOD

The apparent density varied from 1042 to 1093 kg/m³ and 972 to 1017 kg/m³ for fresh seafood at 20C and frozen seafood at -30C, respectively. the apparent density of frozen squid mantle meat decreased from 1062 to 990 kg/m³ when temperature varied from -1.5 to -40C.     

RECOVERY OF VIBRIO METSCHNIKOVII FROM MARKET SEAFOOD

Vibrio metschnikovii, a potentially pathogenic marine bacterium, was recovered from a wide variety of finfish and shellfish purchased at fish markets and supermarkets. Because limited information is available on the occurrence of this organism in food products and human disease, the observations may be relevant to public health considerations of seafood consumption .     

PREVALENCE OF ANTIMICROBIAL RESIDUES IN PREPROCESSED AND PROCESSED COWS' MILK IN TRINIDAD

The prevalences of antimicrobial residues were determined in cows' bulk raw milk from 16 collection centers, in pasteurized milk obtained from sale outlets, and in raw, pasteurized and sterilized milk in the processing line of a plant in Trinidad. The Delvotest SP 5 Pack test kits were used to detect the antimicrobial residues in milk. Thirty-one (10.3%) of 300 bulk milk samples contained antimicrobial residues with penicillin responsible for 90.3% of all the positive samples which originated from 8 (50.0%) of the 16 collection centers. The prevalence of residues in pasteurized milk was 21.3% compared to 8.3% detected in sterilized milk. The difference was not statistically significant (P ± 0.05; X²). Pasteurized milk obtained from sale outlets but originating from two other processing plants had antimicrobial residue prevalence of 0% and 8.3%, respectively. It is concluded that the presence of antimicrobial residues in raw and processed milk in Trinidad could be of public health and economic significance .     

PREVALENCE OF SELECTED UNSAFE FOOD-CONSUMPTION PRACTICES AND THEIR ASSOCIATED FACTORS IN KANSAS1

Results of a survey conducted between 1995 and 1996 in Kansas were analyzed to estimate the prevalence of four high-risk food-consumption practices and to identify population characteristics associated with each practice. The self-reported prevalences were 26.5% for home-canned vegetables, 8.7% for undercooked hamburger, 55.6% for raw or undercooked eggs, and 1.8% for raw milk. Rural residents and those who had a child between ages 13 and 17 were more likely to consume home-canned vegetables. The consumption of undercooked hamburger was low for respondents with a child from one to four years old but was high for overweight respondents. Those respondents who had higher education and a child between ages 13 and 17 were more likely to consume raw or undercooked eggs. Lower income respondents were more likely to drink unpasteurized milk. The population characteristics identified in this study could be incorporated in the formulation and implementation of educational programs aimed at changing these high-risk eating behaviors.     

苎麻织物纤维素酶处理与染色同浴工艺的探讨

运用活性染料和弱酸性纤维素酶对苎麻织物分别采用染色后酶处理、染色前酶处理和二者同浴3种方法进行处理，确定了纤维素酶处理和活性染料染色的较合理的工艺流程，缩短了苎麻织物所需的加工时间，提高了生产效率，降低了生产成本，具有一定的参考价值。     

PREVALENCE OF ANTIMICROBIAL RESIDUES IN MILK AND DAIRY PRODUCTS IN THE STATE OF KUWAIT

ABSTRACT

Approximately, 1,000 locally produced and imported milk and dairy product samples were collected at different seasonal periods from different farms and retail outlets in Kuwait, and screened for the presence of four antimicrobial residues (beta‐lactams, tetracyclines sulfonamides and chloramphenicol) using Charm II system. Results indicated that 29.1% of the analyzed local fresh milk samples were above the maximum residue level (MRL) for tested residues with tetracycline as predominant residue. The prevalence of antimicrobial residues in imported pasteurized milk samples (5.4%) was higher than that of local pasteurized milk samples (3.4%). No residues were detected in powdered and condensed milk samples imported from the European Union (EU) countries with the exception of tetracyclines. Results also showed that 9.4% of the analyzed imported cheese samples were above the MRL for tested residues, while tested ice cream samples were negative for antimicrobial residues. The significant presence of antimicrobial residues, particularly chloramphenicol, in raw and pasteurized milk, clearly implies the misuse of antimicrobial drugs in animal farms in Kuwait and neighboring countries, and implies the need for stricter regulations on antimicrobial drug usage in the dairy industry.

PRACTICAL APPLICATIONS

This article addresses the generation of a baseline data on the current presence of four antimicrobial residues in locally produced and imported milk and dairy products in the state of Kuwait. The outcome of this study will provide valuable baseline information for local governmental authorities for effective monitoring for the use and misuse of agricultural antimicrobial drugs. Such data will also be important for other Gulf Cooperation Council countries, because such countries share similar farming practices and import comparable foodstuffs.

     

PREVALENCE AND ANTIMICROBIAL RESISTANCE OF LISTERIA SPECIES IN FOOD PRODUCTS IN BANGKOK, THAILAND

A total of 380 meat and meat products, dairy and dairy products, fresh vegetables, fresh seafood, and ready-to-eat food samples from supermarkets in Bangkok, Thailand were collected and analyzed for the occurrence of Listeria spp. and of Listeria monocytogenes. The overall incidence of Listeria spp. was 16.8%, most of them were isolated from raw meat and vegetables. L. monocytogenes was isolated from 18 (4.7%) out of 380 studied samples. Other species isolated were L. innocua (6.6%), L. ivanovii (0.8%), L. seeligeri (0.5%), L. grayi (1.6%) and L. welshimeri (2.6%). The antimicrobial susceptibilities of the 64 isolate of Listeria spp. were also examined by the standard disk diffusion method. Listeria spp. were resistant to penicillin (6.3%), chloramphenicol (3.1%) and tetracycline (1.6%), but sensitive to amoxicillin, vancomycin, ampicillin, rifampicin and sulfamethoxazole.

PRACTICAL APPLICATIONS

Listeria monocytogenes prevalence in food products in Bangkok has been documented. More studies on the occurrence of L. monocytogenes are needed to establish microbiological criteria of foods in the country. The findings of our study, increases in antibiotic resistance among Listeria spp. will provide useful information for the development of public health policy in the use of antimicrobials in food animal production.