沙棘叶多酚在苹果汁保鲜中的应用

沙棘叶多酚是从沙棘叶里提取出来的一种植物多酚,由于植物多酚的结构是多样性的,所以沙棘叶多酚具备多种生物活性.在沙棘叶多酚中具备一种较为特殊的活性,这就是抑菌活性.基于其抑菌活性的特点,人们可以将沙棘叶多酚应用于苹果汁保鲜中.由于沙棘叶多酚是一种天然的植物多酚,所以对人体并不会产生副作用,人们可以将其广泛地应用于苹果汁保鲜中.本文从沙棘叶多酚的提取、沙棘叶多酚的抑菌机制及在苹果汁保鲜中的应用等角度出发说明沙棘叶多酚在食品保鲜中的价值.     

荔枝系列产品深加工技术

介绍了糖水荔枝罐头、荔枝汁、荔枝酒、速冻荔枝等产品的加工技术。     

Tradeoffs between sensory attributes and organic labels: the case of orange juice

Researchers have investigated the role of sensory attributes and organic labels on consumers’ preferences and perceptions of food, but few has examined whether sensory attributes are relevant for consumers who prefer organic food and the extent to which sensory attributes influence consumer's marginal willingness to pay for organic food. The objective of this study is to determine how sensory attributes and organic label work together to influence consumer's stated preference and marginal willingness to pay for orange juice. To achieve this, we conducted a blind sensory evaluation of two orange juices followed by a discrete choice experiment to determine the extent to which consumer's stated preference for orange juice labelled as organic is affected by sensory experience preceding the choice experiment. Random parameter logit models and latent class conditional logit models are used to explain stated preference. Results indicate that the effect of sensory attributes on consumer's marginal willingness to pay differed by organic juice and conventional juice.     

两种有色植物染色的尝试

柑橘皮和黑莓都是天然植物染料,橘皮染色的性质相对于黑莓染色稳定,橘皮和黑莓等植物类染色原料染色是环保的染色方式,能减少环境污染,节省能源,相对合成染料非常廉价。可能有些种类容易褪色,但是值得推广的染色方式。     

我国开发浓缩苹果汁期货的必要性和可行性分析

我国是世界第一大苹果和苹果汁生产国,苹果汁出口占据世界贸易量一半以上。分析我国推出浓缩苹果汁期货在抵御价格风险、提高果农收入、赢得反倾销诉讼、促进产业发展等方面的必要性。同时进一步从苹果汁现货市场发育程度、产业规模、厂商数量、交割标准制定等方面进行可行性分析。浓缩苹果汁期货的上市,可以使我国牢牢掌握苹果汁的定价权,促进整个苹果产业链的健康发展。     

苦瓜啤酒的生产技术

文章介绍了苦瓜基汁苦瓜啤酒的工艺流程,阐述了生产过程的操作步骤和要求,并提出了苦瓜啤酒的质量标准。     

Study on formation mechanisms of Gannan navel orange characteristic industrial clusters on organizational ecology

The planter history of Gannan navel orange might trace to 1970s, up to now underwent in more than 30 years. Approximately, the development historical division on the Gannan navel orange is 4 stages. The natural environment factor, the customer factor, and the political factor have played crucial roles in the formation and development of GNOCIC. Among them, the rich natural resource and the superior geographical environment are the material base. And government＇s support is the main propelling force. The customers＇ expense is the final decision strength by chance which it develops, expands.     

The Impacts of Retail Promotions on the Demand for Orange Juice: A Study of a Retail Chain

This study examined the impacts of retail promotions on the demand for five brands of orange juices for a retail chain (referred to as Retailer X) and its competitors using the Rotterdam model. Results show that the combination of feature ads and displays had the largest impacts on retail revenue among the four promotional tactics considered, whereas temporary price reductions had no advertising impacts on retail revenue. Results also show that when Retailer X promotes an orange juice (OJ) brand using any of the tactics, a larger portion of the increased demand for the promoted brand comes from reduced demand for other brands of OJ in the same store or chain.A smaller portion comes from the decreased demand in Retailer X's competing stores in the same trading area.     

Perceptual Density of Guava Juice: The Effect of Image Location and Surface Texture

Guava is known for its rough (astringent) appearance and texture; feature attached to its nutritional benefits but rejected from consumers’ point of view. This study deals with the rough property of guava juice through packaging expecting to influence its perceived density. Two studies were designed by manipulating (a) the location of the image on the bottle and (b) the surface texture of the bottle, controlling for transparency. Results confirm that it is possible to shift the perception of density in guava juice (a) locating the image of the fruit on the top (not the bottom) of the bottle and (b) using a smooth surface texture (not a rough) on an opaque bottle. Concerning practical implications, agribusinesses should enforce the use of sensory marketing strategies to sell the best of fruits and vegetables.     

果汁褐变机理研究进展

纵观可知,为充分实现水果附加值的全面强化,可运用果汁加工这一有效的措施途径,旨在合理规避由于果汁未能及时出售而造成的经济损失情况出现。然而,在果汁加工进程当中,果汁褐变始终是果汁加工行业所面临的巨大难题,基于此进行研究显得十分重要。