Patents by Inventor Gregar Saxby

Fish Processing Patents

Product made by recovering bone and oil from animal byproducts
Publication number: 20040208964

Abstract: Product made by separating bone and oil from marine byproducts. The byproducts are ground and warmed to a relatively low temperature of approximately 70 deg. C. or less. The warmed material is passed to a refiner to separate the bone from the meat portions. The meat portion is transferred to a digestion tank where the endogenous enzymes perform a first stage digestion. Exogenous enzymes may be added and further digestion may take place for increased liquefaction of the meat portion. The exogenous enzymes can survive temperatures higher than the 60-65 deg. C. range so the liquified material can be heated during the further digestion to increase hydrolysis and pasteurize the product. Oil may be removed from the product by centrifuge following completion of either digesting step. Evaporation of the product may be used to increase the percentage of solid material. Alternatively, the oil may be removed after digestion without mechanically deboning the byproducts.

Hydrolysate assisted phytic acid reduction and feed modification method
Publication number: 20020094357

Abstract: A fish, krill or fish by-product hydrolysate is added to canola meal or like cereal. Phytase enzymes are added to the liquid material with the pH and temperature of the mixture being held at optimum for the phytase enzymes. The mixture is stirred for a predetermined time period to incubate the mixture under the desired pH and temperature conditions. Thereafter, the mixture is acid stabilised for storage and may further be dried or co-dried with other feed ingredients. The phytic acid in the canola meal is transformed and releases the previously bound phosphorous. The quantity of phytic acid in the canola meal is reduced significantly thereby reducing the antinutritional factors in the cereal. The benefits include a reduction of the phosphate necessary to be added as a supplement to the diet and an increase in protein absorption by the fish or animal. Further, less phytate bound phosphorous is added to the environment. Other enzymes and cereals having similar utility are contemplated.


Krill Processing Patents

Method and apparatus for harvesting, digestion and dehydrating of krill hydrolysates and co-drying and processing of such hydrolysates
Patent number: 6555155

Abstract: Method and apparatus used in producing a feed product or premix and the products made by the method. A predetermined quantity of krill hydrolysate is added to a predetermined quantity of dry carrier with or without a predetermined quantity of liquid marine protein. The mixture is subject to evaporation and drying steps in which relatively heavier particles are separated from relatively lighter particles. The mixture may be blended, ground and subject to chemical reaction in a balance tank prior to entering a dryer. The dryer utilizes a warm air source, a tower and a cyclone to dry the mixture following its entry into the dryer. Temperature sensitive enzymes or other bioactive products may be added to the product produced from the dryer. A method for obtaining enzymes from a fresh krill extract or an autolyzed krill preparation and the product are also disclosed

Euphausiid harvesting and processing method and apparatus
Patent number: 6112699

Abstract: Method and apparatus for harvesting and processing zooplankton and, in particular, for harvesting and processing euphausiids for subsequent use as a feed product for early stage juvenile or larvae feed or for a food product as an additive. The euphausiids are continuously harvested from coastal waters and dewatered. The dewatered product is passed to a heat exchanger to increase its temperature and, thence, to a digester where a desired level of enzymatic activity is obtained. The product is then held by a surge tank for subsequent transfer to a ball dryer where the product is dried at a relatively low temperature without destroying the stabilized enzymes created in the digester. The digesting step may be deleted in the event the end use of the product is for a food product.


Shellfish Patents

Shellfish culture and harvesting system
Patent number: 5400745

Abstract: A method for the cultchless cultivation of mollusks comprises placing the mollusks in an elongate bag of mesh material, which is preferably about 100 feet long. The bag has a longitudinal slit therein for providing access to the bag. The bag is suspended under tension in an underwater off-bottom location whereby the slit is maintained in a closed position by the tension. The invention also includes apparatus for raising the bag into an elevated position above the water for husbandry and harvesting purposes. In one embodiment, the apparatus comprises a raft provided with a pair of spiked rollers thereon for moving the bag along the top of the raft.