用转基因植物生产生物可降解塑料的研究进展

PHB、蛛丝蛋白等都属于生物可降解塑料，有着广阔的应用前景。本文对近几年用转基冈植物生产生物可降解塑料的研究进展进行了综述。     

Do Biodegradable Labels Lead to an Eco-safety Halo Effect?

Biodegradable products allure consumers despite complications associated with developing consistent guidelines for degradability and potential misperceptions regarding what biodegradability means to consumers. This research investigates inferences consumers make about products bearing 100% biodegradable labels and uses the halo effect as a theoretical foundation for investigation. Past research has found that health labels can have a general halo effect and promote beliefs about attributes unrelated to health claims. The results of two experiments suggest that 100% biodegradable labeling produces a similar eco-safety halo. This eco-safety halo is characterized by assumed consumer safety and environmental attributes of 100% biodegradable products. Results are presented along with implications, limitation, and directions for future research.     

微生物絮凝剂在废水处理中的应用现状研究

微生物絮凝剂是一种天然高分子絮凝剂,因其无毒、可生物降解、无二次污染等独特的性质而被广泛的应用于污水处理、给水工艺以及食品和发酵工业等。本文综述了产生絮凝剂的微生物种类、微生物絮凝剂的主要成分及性质、微生物絮凝剂的絮凝机理、微生物絮凝剂的合成条件及微生物絮凝剂在水处理中的应用现状。     

包装粮氮气气调储藏初探

东莞市东站粮食储备库采用的“双低”储藏能够在投药量在3g/m^3左右的情况下,1a熏蒸2次就可确保粮食全年无虫,本试验是在“双低”的基础上,通过对薄膜6面密封的包装粮粮堆充入氮气,以进一步降低薄膜内氧气含量,抑制害虫呼吸,从而杀死害虫或抑制害虫生长繁殖,达到减少熏蒸杀虫用药量和熏蒸次数甚至无须熏蒸从而达到绿色保粮的目的。     

绿色包装发展的动态

随着时代的进步,出现了一些新的绿色包装发展趋势:研发进展迅猛的天然高分子生物降解塑料,化学合成脂肪族生物降解塑料的快速发展得益于新的高分子设计方法,绿色化学的兴起加速食品绿色包装的发展,轻量化与薄壁化在包装绿色化中所占比重增大,电子商务的快速发展使回收再利用系统建设变得更为迫切,金属包装成为保证食品安全的首选,纸包装的应用领域进一步扩大。     

Media influences on consumption trends: Effects of the film Food,Inc. on organic food sales in the U.S.

In this paper, we empirically investigate the effect of Food, Inc. – an influential documentary film on the US food industry – on organic food sales. We use a novel dataset of Google search volume to measure the influence of the film. Organic food sales are measured using store-level data for three categories in 33 major US markets. For two out of the three studied categories – yogurt and peanut butter – we find that areas with more Google searches for the film experienced a greater increase in the share of organic sales subsequent to the film's release. The effect of the film is more pronounced for the yogurt category, which is closer to the farm and more relevant to animal welfare — one of the key issues featured in the film. The effects are economically significant: ceteris paribus, a one standard deviation increase in our Google search stock measure translates into a 0.66% increase in organic market share for the yogurt and a 0.15% increase for the peanut butter category. In addition, we provide a measure of the decay of the film's effect by deriving the 90% duration interval of the focal search stock variable. We find that, for both categories, the film's effect on organic shares faded within six months.     

Why do consumers purchase biodegradable plastic? The impact of hedonics and environmental motivations on switching intention from synthetic to biodegradable plastic among the young consumers

Human concern for the environment has grown in tandem with recent economic development, particularly in emerging nations. This paradigm change has led Malaysians to pay more attention to synthetic plastics challenges, particularly in Malaysia. This study aims to determine the attitudes of young Malaysian consumers on the usage of biodegradable plastics to minimize the use of synthetic plastic in the country. Generally, two motivations—hedonic and environmental motivations toward switching intention from synthetic to biodegradable plastic among the young consumers were examined in the study. Environmental motivations (environmental concern, environmental knowledge), as well as hedonic motivations (adventurous spirit, novelty-seeking), are used in this study to broaden the theory of consumption value (TCV) into four additional factors that may positively impact the young consumer's attitude and increase switching intention towards biodegradable plastics. The data was collected utilizing an online survey approach and a standardized questionnaire. The data of 386 young Malaysian customers were analyzed using structural equation modelling (SEM) using SmartPLS 3. The study's significant findings indicated that hedonic motivations, environmental motivations, and attitudes all impact switching intentions toward biodegradable plastics. This study also found that attitude is a mediator between hedonic and environmental motivations regarding switching intentions. These findings might aid the government in developing a new policy that encourages residents to adopt biodegradable plastics while also lowering pollution.     

食品中铝的测定及食源铝污染的初步研究

铝是人体不可或缺的一种微量元素,在食品工业及医药行业中应用非常广泛。随着人们生活水平的不断提升,人们对于食品中铝含量与人体健康之间的关系关注度也越来越高。基于此,在对食源铝污染现状进行简单分析的基础上,简单介绍常用的食品中铝的测定方法,并提出相应的控制食源铝污染的措施。     

壳聚糖及其衍生物废水处理进展和含酚废水应用前景

介绍了壳聚糖处理废水的现状,综述了含酚废水处理技术的现状及其发展,阐述了含酚废水处理中各种常用方法的原理,分析各种技术的特点和存在的问题,探讨了以壳聚糖处理含酚废水的技术.     

从出口看食品安全与技术性贸易壁垒影响的思考

食品安全不仅直接关系到消费者的身体健康,而且影响食品生产企业尤其是食品出口企业的生存和发展。我国是食品出口大国,但由于在食品安全方面还存在一定隐患,食品技术法规和标准与国际上许多国家还存在一定差距,致使我国食品的出口频频遭遇技术性贸易壁垒的限制,给我国食品贸易造成巨大损失,严重影响了我国食品行业的发展。针对上述问题,就如何提高食品安全性,使食品安全进一步适应社会发展、冲破壁垒的束缚,本文从四个方面进行了探讨,希望能对我国食品安全和食品出口贸易有一定的借鉴作用。     

Selling French Films on Foreign Markets: The International Strategy of a Medium-Sized Film Company

Foreign markets largely shaped the business strategy of LesFilms Albatros, a medium-sized, internationally networked specialtyproducer of films in interwar France. Depending more on foreignrevenues than did the Hollywood studios, Albatros also realizedhigher gross returns. Because films were capital goods providinga perishable product (seats at a specific time), their pricedepended on both expected performance and the threshold ticket-sellingcapacity necessary to recoup cinema fixed costs; some filmscould not be sold at any price. Given the small potential marketfor its films, Albatros had to find an intricate balance betweenproducing at low cost and delivering films with at least thresholdticket-selling capacity. It did so by differentiating its films,entering film distribution in France, coproducing internationally,and cooperating with Pathé and Gaumont, the two largestFrench film companies. While its larger European rivals wereobsessed with operational effectiveness vis-à-vis Hollywood,Albatros, by adopting a distinct strategic position, hardlyhad to pay attention to operational effectiveness at all. Itwas making a differentiated product for needs unserved by Hollywood.     

Purchases,food habits and waste management in households: exploring responses to local composting

This exploratory study focuses on processes of food purchases, food habits and waste management in the household. The purpose of the study has been to investigate what influences the amount and type of waste generated in the household. Information was collected in 13 households in a residential area close to central Göteborg, Sweden, where a separation of waste and local composting experiment had just been launched. The households registered purchases, meals served, and weight of biodegradable waste, for 2 weeks. In-depth interviews were also carried out. At a general level, environmental concern was found not to influence purchase behaviour. The results show that the households produced a higher level of biodegradable than non-biodegradable waste. Variations between families were found to be considerable. There are clear indications that the experience of participation in the experiment which required local composting per se was a very powerful determinant for increasing the awareness in families of the relationship between consumption and the nature and quantity of waste produced.     

糯小麦粉特性研究进展

由于糯小麦粉几乎不合直链淀粉,所以在食品工业和非食品工业上将有重要的应用价值。综述了近几年国内外糯小麦育种、糯小麦淀粉特性和糯小麦配粉研究进展。并阐述了其在食品工业中的开发和应用。     

"Selling America to the World"? The Rise and Fall of an International Film Distributor in its Largest Foreign Market: United Artists in Britain, 1927-1947

Few industries are as widely associated with the spread of Americanvalues, ideas, and products as the film industry. U.S. firmscertainly dominated the global market for feature films, butdid they do so simply by "selling America to the world" or wasthere more to be gained by catering to the diverse tastes ofinternational audiences? This article examines the operationsof a leading U.S. film distributor in its largest foreign market.United Artists, like other U.S. firms, was forced to offer aminimum proportion of British films for distribution in theUnited Kingdom in the 1930s and 1940s. Was this requirementa burden, or were the firm’s British films actually atthe heart of its success in the U.K. market?     

可食性小麦蛋白膜的研究

本文介绍了小麦蛋白及其成膜特性,总结了国内外可食性蛋白膜的研究现状,提出了可食性小麦蛋白膜的研究方案,并对膜的安全性及其应用作了展望。     

European Union Market Access Conditions and Africa's Extensive Margin of Food Trade

This paper examines the impact of two European Union (EU) market access regulations in the food sector presumed to simultaneously affect firms’ decisions to export food products to the EU. We analysed EU pesticide standards on African exports alongside a complementary non‐tariff measure in the form of a minimum entry price regulation, which aims to protect EU growers of certain fruits and vegetables against international competition. Analysis was based on Africa's exports of tomatoes, oranges, and lime and lemon to the EU between 2008 and 2013, using the gravity model of trade. Our results show that EU market access conditions constitute significant barrier to the formation of new trade relation between the EU and Africa. In addition, initiation of trade relationships is contingent not only on market access conditions but also on domestic market constraints in Africa. These results imply that negotiating preferential entry prices duties and the removal of domestic market restraints as well as strengthening domestic capacity to comply with EU standards to enhance continuous market access for the continent could stimulate food trade along the extensive margin.     

Brand Placement in Movies: The Effect of Film Genre on Viewer Recognition

This study investigates viewer recognition of brands placed in films, according to film genre, gender, and previous viewing experience. A sample of 137 moviegoers watched 12 film clips representing three popular genres (action, comedy, and drama) and reported their recognition of brand placements. Results suggest that brand recognition is more common in drama films. Previous viewing experience and gender did not make significant differences in brand recognition. It is suggested that brand placements require more public relations research.     

魔芋制品的环保应用

综述了魔芋制品(包括可溶性食用薄膜、食品保鲜剂、生物全降解薄膜、缓释剂、魔芋飞粉等)的环保作用在食品工业、农业和建筑行业中的应用现状、潜在用途及发展方向。     

Young adults’ responses to product placement in movies and television shows

This research examines young adults’ attitudes towards product placement in films and television shows from two countries that represent contrasting cultural distinctions: the US and Korea. The results suggest that young adults in both countries perceive film product placement in a similar way but, with respect to television, Korean respondents tend to perceive it as less effective in enhancing content realism and more unethical and misleading. In addition, the findings suggest that, for both film and TV, materialism, attitude towards advertising, and realism enhancement appeared to be significant predictors of consumer cognitive response to product placement. However, cross-cultural differences were observed for TV product placement. In the US, materialism and realism enhancement were found to be most powerful predictors of cognitive response to product placement. In contrast, attitude towards advertising and materialism were found to be the strongest predictors in Korea. Implications for both advertising researchers and practitioners are provided.     

Promoting Brands through Product Placement in Successful and Unsuccessful Films in Emerging Markets

ABSTRACT

This article examines the nature and role of the product placement in film as an alternative strategy for better brand recall. For this study, four films, two successful and another two un-successful based on box office reports, are selected. Clippings of the films are shown to 119 respondents. The article concludes by arguing product placement in film can be an alternative to advertisements for better brand recall, purchase intentions and changes in perceptions toward the brands as well as improving attitudes toward the brand. It also gives direction on developing the consumer as a brand spokesperson for global brands.