商品包装的图形设计

图形是一种用形象和色彩来直观地传播信息、观念及交流思想的视觉语言,具有一定的寓意象征性.图形在包装上是信息的主要承载者.它的功能有两个:其一是告知内容物;其二是强化产品印象,增强艺术感染力.     

通州区农药包装废弃物回收可持续发展初探

农药作为重要的生产资料,在保障农业生产的同时,也对农产品和环境构成危害。近年来农药包装废弃物对农业生产和环境生态安全的威胁愈演愈烈。近五年来通州区植物保护站开展多种形式的农药包装废弃物回收工作,旨在探索出最佳农药包装废弃物回收模式,还田园清洁,促进农药包装废弃物回收工作可持续发展。     

三疣梭子蟹不同包装方式保鲜效果的比较

三疣梭子蟹属宁波名特优水产养殖品种,但三疣梭子蟹在保藏加工中容易发生褐变,哪种包装方式可抑制梭子蟹褐变并有效延长产品保鲜期,是一个值得探讨的问题。该文对三疣梭子蟹真空包装、气调包装和涂膜包装的保鲜效果进行比较。结果表明：气调包装气体配比为CO2 50%,N2 50%的保鲜效果较好;但真空包装与气调包装和涂膜包装的保鲜效果相比,0～4℃下,真空包装可有效抑制梭子蟹腮部和足部褐变并延长三疣梭子蟹保鲜期,保鲜效果好于气调包装和涂膜包装。     

联合气调包装贮藏对樱桃保鲜效果的影响

采用冷藏条件下联合自发气调包装(CMP)方式贮藏樱桃进行了调查研究,结果表明,贮藏10天樱桃的呼吸强度为4.1 mgCO2/kg·h左右,腐烂率基本控制在10%以内.与纯冷藏相比,联合气调包装保鲜方式可以有效地降低采后樱桃的呼吸强度与腐烂率,有效地保持了采后樱桃的硬度,提高其耐贮性,经济效益显著.     

五香豆干微波杀菌真空包装加工工艺研究

五香豆于是营养丰富又极难防腐保鲜的食品,进行了利用微波杀菌真空包装技术延长五香豆干货架期的研究.将五香豆干采用耐高温蒸煮袋包装,含水量控制在65％左右,在室内常温条件下采用的频率为2450 MHz微波杀菌120～180 s,在(36±1)℃温箱培养7d后,其含菌量不高于GB2711-2003要求,感官评分远远高于对照组...     

Extension of fresh-cut “Blanquilla” pear (Pyrus communis L.) shelf-life by 1-MCP treatment after harvest

‘Blanquilla’ pears processed as fresh-cut products are highly sensitive to browning and softening. Common postharvest methods, such as the use of antibrowning compounds and/or modified atmosphere packaging, fail to preserve ‘Blanquilla’ pear slices long enough to be marketable. However, treatment with 1-MCP before cutting and peeling considerably improved their textural properties (9.2 N vs. 1.1 N with and without 1-MCP treatment, respectively) and color (a* values of 1 vs. 5 after 15 d at 4 °C, for slices pear treated with 1-MCP and without treatment, respectively). These positive changes were closely related to a decrease in respiratory activity determined on whole pears after 3 months of storage in air at 0 ± 1 °C and 95% R.H. (0.40 ± 0.05 mmol CO₂ kg⁻¹ h⁻¹ vs. 0.77 ± 0.04 mmol CO₂ kg⁻¹ h⁻¹ with and without 1-MCP treatment, respectively) and ethylene production (1.18 ± 0.36 nmol C₂H₄ kg⁻¹ h⁻¹ vs. 5.751 ± 1.12 nmol C₂H₄ kg⁻¹ h⁻¹ for samples treated with and without 1-MCP, respectively). The use of 1-MCP allows fresh-cut ‘Blanquilla’ pears to be sold up to about 5 d after processing. Treatment with 1-MCP could be a viable alternative to common technologies for extending the shelf-life of ‘Blanquilla’ pears as a fresh-cut product.     

包装材料对黑珍珠樱桃贮藏效果的研究

以贵阳市乌当区下坝乡黑珍珠樱桃为试材,采用聚乙稀保鲜膜(PE)、聚苯乙烯泡沫塑料(EPS)、普通纸盒对樱桃进行包装处理,在0~1℃的条件下贮藏,研究樱桃果实的商品品质及酶活性。结果表明,聚乙烯保鲜膜对樱桃的贮藏有较为显著的保鲜效果,降低了樱桃的呼吸强度和PPO、POD的活性,减少了樱桃VC和还原糖损失,增加了可滴定酸的含量,减缓丙二醛含量的增高,对可溶性固形物含量的影响不显著,既使樱桃的货架期和贮藏期明显延长,又保证了樱桃的品质。     

塑料包装薄膜粘连性研究及其应用现状

针对塑料薄膜的粘连现象及其对生产和应用的影响,综述了粘连的起因及解决方法,介绍了测试薄膜粘连性和摩擦系数的方法,并简单介绍常用果蔬保鲜膜的粘连现象及其对应用的影响。     

脱皮花生仁充气包装贮藏技术研究

为解决脱皮花生仁贮藏期间极易氧化劣变的技术难题,本文对脱皮花生仁充气密闭贮藏技术进行了研究。结果表明,充氮气和充少量二氧化碳结块贮藏处理均能有效保持脱皮花生仁品质,但综合效果以充少量二氧化碳结块处理最好;不同包装材料贮藏效果不同,使用真空包装袋贮藏的脱皮花生仁品质优于聚乙烯薄膜包装袋;光照对贮藏效果影响明显,脱皮花生仁应避光贮藏。     

Effects of Packaging Method on Salt-Cured Cod Yield and Quality During Storage

Different packaging conditions of salt-cured cod fillets were studied during 2-years chilled storage. Yield and quality of salt-cured Atlantic cod fillets packed in sealed polystyrene boxes or in traditional cardboard boxes were compared. After 4 months, yield decreased by approximately 10% and decreased further when packed in cardboard boxes. Lipid oxidation was low after 12 months, and no microbiological spoilage was registered. The total amount of bacteria in the fish reduced with storage time, independent of packaging. The reddish color of halophilic bacteria was detected after 7–8 weeks at 18°C, but not if packed with MAP.