Patents Assigned to Her Majesty the Queen in right of New Zealand (Department of Scientific and Industrial Research
  • Patent number: 5202140
    Abstract: A method for producing a dried fruit product in which certain physical, chemical and/or sensory features such as green color, flavor and Vitamin C content are stabilized wherein pieces of fruit are produced by peeling and slicing from a green chlorophyll-containing fruit, the pieces of fruit are infused with a low molecular weight carbohydrate, preferably in an infusion solution comprising one or more of glucose, sucrose and fructose together with a buffering agent, and then the pieces are dried. The infused dried product is suitably packaged in an oxygen, water vapor and ultraviolet light impermeable medium for prolonged storage. A dried fruit product produced by the method is also claimed.
    Type: Grant
    Filed: June 30, 1992
    Date of Patent: April 13, 1993
    Assignee: Her Majesty the Queen in right of New Zealand for Department of Scientific and Industrial Research, Division of Horticulture and Processing
    Inventors: Conrad O. Perera, Jennifer A. Venning
  • Patent number: 4992097
    Abstract: The invention relates to a process for the recovery of a valuable metal(s) from its ore(s), that includes a method for removal of environmentally hazardous, volatile material prior to the removal of the metal(s) from its ore pulp or liquor carrier.The process comprises forming a pulp of particles of the ore(s) and leaching from that pulp the valuable metal component via the formation of soluble metal complexes.As elements of the leaching chemicals used are often volatile at least the liquor component of the metal containing pulp is contacted by flow of gas to remove any volatile content. In the case of the leaching chemicals volatile elements the recycling of the volatile element to reform the original leaching chemical is a substantial advantage.The metal is removed from the pulp, or its liquor component, by methods known in the art such as adsorption onto carbon or resin, electrowinning, zinc cementation, precipitation solvent extraction or the like.The metal is then recovered in its solid form.
    Type: Grant
    Filed: October 11, 1989
    Date of Patent: February 12, 1991
    Assignee: Her Majesty the Queen in right of New Zealand (Department of Scientific and Industrial Research
    Inventor: Alan G. Fricker