Food & Beverage Asia Oct/Nov 2018

58 FOOD & BEVERAGE ASIA OCTOBER / NOVEMBER 2018 FIRST LOOK StePac Coperion Optimised Rotary Valve ldeal for Fragile Food Materials In response to the high demand for gentle handling of food and pet food products, Coperion has optimised its ZVB rotary valve design. The modi̬cations have been engineered to provide the gentlest mode of material handling, while maintaining the strict sanitary standards of the food and pet food industries. The improvements include lower overall weight while maintaining the same robust design, optimisation of the housing wall thickness, increased inlet cross section, and an optimised inlet geometry for fragile food materials such as pet food kibbles, roasted co ̫ ee and ̬nished cereals. This unique combination results in a much gentler handling and introduction of product to the rotary valve. The increased “anti- chopping” inlet deflects the product into the rotating rotor chambers of the rotary valve without damaging the product, thanks to the metering vanes. Several tests with customers have shown a signi̬cant reduction in product degradation of fragile and sensitive materials such as pet food kibbles, compared to common rotary valves with standard inlet geometries. Furthermore, an improved overall capacity through the valve is realised by the larger, optimised inlet cross section. Ideal applications include positioning the rotary valve to meter and load finished product into big bags or supersacks, or for ̬lling of ̬nished product packaging lines. All automated transfers of product is then done without degradation or “chopping” of the ̬nished product or ingredient. In addition to the modifications outlined above, the Coperion ZVB rotary valves are also available in Coperion’s innovative design for wet cleaning. The overall design is engineered to provide optimum operational reliability for sanitary production. In addition to including materials of construction and design for use with cleaning agents or hot water ̭ushing, the valve can be equipped with ̭ush end sealing at the inlet and outlet and between side covers and the housing . Ŷ E ̫ orts to overcome common challenges in lengthy supply chains and to move toward more responsible and cost-e ̫ ective delivery processes, is generating increased demand for advanced functional packaging solutions. Meeting these challenges is especially critical when it comes to preserving and extending fresh produce shelf life and reducing waste. StePac L.A. Ltd. is working closely with its partners to implement a comprehensive supply chain solution for the delivery of fresh cherries from farm-to-fork. The company has joined forces with Tadbik Ltd., Israel, to produce the next generation of modi̬ed atmosphere resealable lidding ̬lm. The new technology is engineered to extend the shelf life and reduce waste of fresh packaging in aesthetic and functional retail packaging. The product was showcased at the Asia Fruit Logistica trade show in Hong Kong, September 5-7, 2018. In this collaboration Tadbik created a “FreshLid” laminated ̬lm structure that is sealed to trays containing fresh produce and whose upper layer can be repeatedly peeled back for reuse. The companies then worked together to develop suitable condensation control properties and control film permeability to deliver optimal modified atmosphere compositions (MAP) for high value fresh produce items such as cherries. This innovative packaging will be marketed under the Xgo ® line, Stepac’s leading retail brand. This packaging design incorporates multiple capabilities to e ̫ ectively slow respiration and ageing processes, and to control humidity inside the packaging and extend fresh produce shelf life. Following research and trials at StePac's post-harvest lab, the groundbreaking ̬lm was approved for shelf life extension of cherries. Ŷ Resealable Lidding Film Technology Extends Produce Shelf Life