花生红衣原花青素纯化工艺研究

为探究花生红衣中原花青素的纯化条件,本研究通过静态吸附和解吸试验对8种型号大孔树脂进行选择,再经动态吸附和解吸试验得出最优纯化条件。结果表明,大孔树脂最佳型号为D4020,得出最佳纯化条件为:上样流速1 mL·min^-1,上样浓度1.5 mg·mL^-1,洗脱液为40%乙醇,洗脱流速1 mL·min^-1,最终所得纯化物纯度达97.35%±1.58%。     

中国花生面临的绿色贸易壁垒及对策研究

文章从中国花生出口面临的绿色贸易壁垒出发,综述了中国及世界主要进口市场对花生的食品卫生安全要求,构建了绿色贸易壁垒影响中国花生出口的模型,最后提出了加强跟踪国际标准、建立GAP和CMP等对策措施。     

Peanut exposure during pregnancy,breastfeeding and complementary feeding: perceptions of practices in four countries

Food allergy is an increasing problem worldwide. Allergy to peanuts is a particular concern, given that this is rarely outgrown and may be associated with life‐threatening anaphylaxis. However, it is unclear what factors are responsible for a perceived increase in prevalence rates. One matter on which scientists agree, however, is that exposure to peanuts early in life is significant – although whether early exposure protects or sensitizes to allergy is unclear. There is no significant research that currently records differences in early life exposure either within or between populations. This exploratory study makes a first step in this direction using focus groups conducted in four countries with disparate ‘peanut experiences’ to characterize early exposure in these. The ultimate aim is to help in the development of a survey instrument to attain nationally representative samples of consumers and hence to use the results from this to compare with allergy prevalence data collected in other parts of the European Union‐funded ‘EuroPrevall’ project. The results in this study not only reveal considerable similarities across countries (e.g. in terms of lack of knowledge of guidelines; lack of changes in feeding behaviour during/after pregnancy, feelings that diet variety in children is important) but also one or two interesting and potentially important differences, such as increased consumption in Bulgarian (and some Spanish) breastfeeding mothers because of the ability of peanuts to facilitate lactation. Study limitations and future study intentions are also discussed.     

历史上中国花生种植的区域特点与商业流通

花生是我国的传统经济作物,在我国有着悠久的种植和应用史,但对其在历史上的重要作用却没有论著予以论述。本文从历史地理角度对我国花生在历史上的传播与分布,中国自然环境与花生品种、种植技术的关系,花生在中国的用途与商业流通等方面来进行探讨,希望有助于学界对花生在中国种植历史的深入研究。     

Consumers Acceptance of Peanut Butter and Products Containing Peanut Butter in Two Southeastern States in the U.S.

Abstract

A sample of 606 students, staff and faculty from Auburn and North Carolina A&T State universities were self-administered a questionnaire to evaluate their weekly consumption of peanut butter and products containing peanut butter. The age group ranged from 16 to 78 years, with the majority coming from households of less than four individuals. Their incomes were fairly evenly distributed, with 38 percent earning above $40,000, 31 percent with $10,000 to $40,000, and 31 percent earning less than $10,000. Age, ethnicity, convenience, whether the product was served as a side dish, peanut flavor, and knowledge of fat content significantly influenced peanut butter consumption; whereas age, ethnicity, income, crunchiness, nutrition, convenience, and consumer's perception of fat level in the product affected the consumption of products containing peanut butter.     

Price Risk Management for Peanut Meal

Abstract

Peanut meal is cross-hedged with soybean meal using peanut meal cash prices and soybean meal futures prices. Hedge ratios are obtained for a 3-year and a 6-year period model. The data is from 1993 to 2000, with the 2000 data used for evaluation. All hedge ratios are significant and the 3-year period model's results suggest that long term data sets have less explanatory power than short-term hedge ratios. Evaluation results indicate positive gains for cross-hedged poultry producers and/or peanut producers. The empirical analyses suggest that soybean meal futures can be used as a potential cross-hedging vehicle for peanut meal.     

花生的传入、传播及其影响研究

文章用历史学和生物学的方法论证了花生非中国起源而是起源于南美洲。分析、考证了花生的传入时间、地点、路线，探索了花生在我国传播的主要方向和扩种的原因。通过历史事实，文章还探讨研究了花生在我国农业经济和人民生活中所起的重要作用。     

胶东花生油供应链现存问题与对策

通过分析胶东花生油供应链现状,找出采购、生产、销售、库存等环节中存在的问题,提出了优化方案,帮助企业适应多变的需方市场,满足顾客的需求并获得核心竞争力。     

The Butter and Margarine Debate from the Consumers' Perspective

This empirical study examines consumers' perceptions of butter and margarine. The study shows that consumers are not well informed about the differences between the products. Some differences between male and female respondents concerning butter and margarine were also discovered. Butter and margarine producers both have work to do in better educating the consumer about their products.