加强海洋环境保护预防赤潮灾害

海洋赤潮灾害已成为我国沿海地区主要海洋灾害之一。本文介绍了赤潮的发生、危害、治理及国内外研究现状，并就赤潮预防治理工作，提出了五点建议。     

掺伪食品检验课程教学改革探讨

随着时代的发展,食品安全问题在社会各界引起广泛关注,而掺伪食品检验课程作为当代各大高校、职业院校相关专业必不可少的一门课程,在教学方法、教学模式和教学理念等方面存在多种问题。本文首先从职业院校角度出发,分析了当前掺伪食品检验课程教学中的不足和问题,并立足实际提出多元化教学方法、改革试验教学机制、优化考核模式等教学改革建议,希望能给相关教育者提供参考。     

如何鉴别掺伪中药材

1．地骨皮中掺路边青的根皮。地骨皮为茄科植物枸杞、宁夏枸杞的根皮。药材筒状、槽状或卷片状,厚1～3m。外表面灰黄或棕黄色,粗糙,易呈鳞片状剥落。内表面黄白或灰黄色,易折断,断面不平坦,外层较厚,黄棕色,内层灰白色,味微甘而后苦。     

食糖产量减少对食糖掺伪问题的影响及应对策略研究

本文针对食糖产量减少对食糖掺伪问题的影响展开研究,并提出相应的应对策略,旨在提升食糖产量、加强掺伪检测技术、加强法规监管与执法力度,提升消费者对掺伪问题的认知和监督能力。因此,本研究对于保障食糖质量和食品安全具有重要意义。     

粮油产品质量安全快速检测技术的研究与应用分析

快速检测技术在我国食品安全领域中发挥着关键的作用,粮油产品也是人们日常生活必不可少的一部分.通过快速检测技术的应用,能够准确快速地判断粮油产品质量,从而进一步规范我国粮油行业的发展.本文对食品安全快速检测技术的基本内容进行简要概述,详细阐述几类粮油产品常用的检测技术,并作出总结.     

ATP生物发光法检测拭子的研究进展

ATP(三磷酸腺苷)生物发光法是一种快速的微生物检测方法,具有简便、灵敏度高、可实时检测等优点.就ATP生物发光法的发展概况、检测原理、拭子的操作方法、优势与劣势进行了综述,并提出了ATP生物发光检测拭子的相关研究思路.     

原子吸收光谱法在食品金属检测中的研究进展

环境污染导致食品中的重金属含量超标,危害人类健康,甚至摄入一定量后会导致人中毒身亡,因此重金属含量的检测和监控对于食品安全监管工作十分重要.原子吸收光谱法是常用的金属检测法之一,在食品检测领域被广泛研究.本文介绍原子吸收光谱法的工作原理,探讨其在果蔬、粮食、动物肉及其制品、生活饮用水等食品中金属含量检测的研究进展.     

Valuing Consumer Perceptions of Olive Oil Authenticity

Nowadays, while the authenticity of agri-food products becomes a major concern for consumers, given the increasing rate of food fraud reports across the world, olive oil records the highest adulterations. The high selling price of olive oil is the main reason for conducting adulteration, which is often caused through false indications on the packaging (mislabeling). On the other hand, consumers are well aware of the alteration, and they are looking for authenticity signals during the purchase process. Authenticity, therefore, becomes an evaluation and decision-making criterion that guides consumer choices. The aim of this paper was twofold: to highlight the attributes in which Greek consumers attach great importance during the evaluation of olive oil’s authenticity, and second, through consumers’ demographic segmentation, to gain more detailed knowledge about the attributes that consumers evaluate in olive oil authenticity. CUB (Covariates in a mixture of Uniform and Binomial random variables) models are employed for the interpretation of ordinal data due to the ability of comparing and clustering the rating distributions consumers express about olive oil features, and due to the ability of detecting significant similarities and differences in consumer responses. Moreover, with the introduction of respondents’ social, demographic, and financial characteristics, CUB models allow the measurement of the influence that the consumers’ profile has upon the attributes of olive oil authenticity. The results showed that consumers attached great importance to taste, acidity, country and region of origin, olive variety, color, organic production, and regional certification in the evaluation of olive oil authenticity. In addition, secondary school graduates tend to use taste and olive variety, also indicating confidence in the authenticity of organic olive oil.     

Commercial Strategies in the Olive Oil Bottling Sector in Spain

Abstract

The main objective of this study is to analyse the olive oil bottling sector in Spain, applying the strategic group methodology to a group of firms from the sector. The study is divided in four sections:

? Identification of the strategic groups, using multivariate statistical techniques.

? Characterization of the groups, analysing their internal structure, delimiting and explaining their strategies.

? The positioning.

? And differences in the results of the groups.     

The Effects of Extrinsic Cues on Olive Oil Price in Brazil

Over the past two decades, world olive oil consumption registered an impressive growth. Although olive oil consumption remains concentrated in the main producer countries surrounding the Mediterranean Sea (“traditional” markets), it is also growing rapidly in many other countries all over the world, where olive oil is still largely perceived as a novelty food (“nontraditional” markets). This study focuses on the Brazilian market of olive oil, which is one of the most important nontraditional markets in terms of both its dimension and growth rates. A hedonic price model has been used to evaluate whether, and to what extent, extrinsic cues impact on the retail price of olive oil. Data were collected via direct observation of several e-shops where Brazilian consumers could purchase olive oil. Results show that the retail price of olive oil is highly influenced by extrinsic cues such as branding, labeling, and packaging.     

The Olive Oil Sector Facing New International Market Challenges

Abstract

This article explores the new economic context in which international olive oil marketing strategies are framed. The underlying premises are that the growing liberalization of international trade is inducing an emergent globalization process in product trading, and that business strategies are increasingly influenced by a more demand-driven food chain. The first part discusses the macro-factors conditioning olive oil trade on a worldwide scale, surveying the main changes in market regulation schemes as well as in recent world product supply and demand trends. The second part addresses a series of microeconomic and organizational factors shaping business strategies with respect to product marketing, placing special emphasis on quality as a key factor for expansion into potential markets.     

The Influence of Consumer Characteristics and Attitudes on the Demand for Organic Olive Oil

Abstract

The aim of the present study is to examine consumer factors that affect the demand of organic olive oil (socioeconomic characteristics as well as attitudes towards organic products, food safety and the environment). Heckman approach for single equation procedure was applied in order to (1) identify the profile of regular buyers of organic olive oil based on the aforementioned factors and (2) to estimate income elasticity for the same product. Results indicate that the demand for or ganic olive oil is strongly affected by socioeconomic characteristics such as income size and occupation status, and to a lesser extent by attitudes towards organic products, food safety and the environment.     

PDO Olive Oil Products: A Powerful Tool for Farmers and Rural Areas

Abstract

Nowadays, consumers’ quality awareness and health consciousness drive the agri-food market towards a consumer-response food market. As a result, many producers and firms in the Euro-Mediterranean countries have opted for several quality and origin assurance schemes. Among them, a prevalent role is played by the Protected Designation of Origin (PDO) certification that constitutes a successful differentiation tool for agricultural products, and it is also widely used by Euro-Mediterranean olive oil producers due to effective contribution in promoting high-quality olive oil. After going through previous studies of PDO olive oil, this review paper investigates the general aspects and prospects of PDO olive oil products and EU relevant regulations, highlighting the socio-economic dimensions and impacts upon producers, consumers, and rural areas, and determining the gap between literature and practice with regards to PDO’s implementation and the expected benefits. Finally, the paper concludes with the main points and recommendations for further research.     

基于脂肪酸含量变化的茶油掺假判别

采用气质联用(GC-MS)技术获取茶油、花生油、大豆油、菜籽油的纯油脂及茶油掺假后的油脂掺假模型的脂肪酸含量组成,在对脂肪酸含量变化进行分析的基础上,通过绘制以顺式油酸甲酯面积百分含量为X轴,花生酸甲酯面积百分含量为Y轴与茶油、大豆油、花生油、菜籽油油脂含量的等值线图,直观地呈现出茶油掺假油中茶油、花生油、大豆油、菜籽油的分布,可以定性且定量的鉴别茶油掺假油情况。研究结果可以为食用植物油脂的产品质量控制和掺假检测提供理论依据。     

Marketing Olive Oil Products in the Tunisian Local Market: The Importance of Quality Attributes and Consumers' Behavior

This article is, to the best of our knowledge, the first investigation of Tunisian olive oil consumer behavior by the use of the conjoint analysis technique. The conjoint experiment was based on carefully selected olive oil attributes: type, taste, color, packaging, region of origin, and price. The results have important implications to improve the marketing of olive oil in the local market by focusing on key preferred attributes. Consumers were found to prefer more extra-virgin, followed by virgin olive oil, to pomace oil. They also showed higher preference for green colored olive oil with strong flavored taste. Contrary to a common belief in Tunisia, the region of origin attribute did not show significant effect on consumers’ purchasing decisions. The results show also that Tunisian olive oil consumers are price sensitive and therefore any price strategy to introduce bottled products should take into account consumers’ preferences for bulk purchase.     

食品中N-亚硝胺类化合物的检测研究进展

N-亚硝胺类化合物是一种具有强致癌性的化合物,本文综述了N-亚硝胺类化合物的种类及危害,N-亚硝胺类化合物的合成原理,主要介绍了N-亚硝胺类化合物的7种检测方法,探讨不同检测方法的优缺点,以推动建立更为快速、准确、灵敏的N-亚硝胺类化合物检测方法.     

油脂定性试验菜籽油中棉籽油检出测量不确定度评定的探讨

探讨油脂定性试验——菜籽油中棉籽油检出测量不确定度的评定。用已知棉籽油含量的菜籽油进行检测分析测量过程的不确定度分量,合成相对不确定度(Uc)=18.21%。选择与被测样色泽接近的油脂加标对照,可以有效提高测定准确性。