A process for the preparation of a flavoring powder based on macruran decapod crustaceans that comprises a) having macruran decapod crustacean cephalothoraxes kept at no more than about 2 degrees centigrade, b) optionally adding vegetable oil to the cephalothoraxes, c) heat treating the cephalothoraxes using dry heat at a temperature of between about 160 and about 180 degrees centigrades so that the inside reaches approximately 70 degrees centigrade for a period of approximately 2 minutes, d) extracting the hepatopancreas of the cephalothoraxes in liquid form, e) filtering the creamy liquid obtained without pressure, separating the solids present; f) lyophilizing the filtrated product obtained in e); and g) grinding the product obtained by lyophilization to a powder with a particle size from about 5 μm to about 80 μm. The flavoring product obtained by the process described above, where the macruran decapod crustacean cephalothoraxes come from Patagonian shrimps (Pleoticusmuelleri), being a powder of between about 5 μm to about 80 μm in particle size, and comprising about 39% protein, which does not include chitin, about 43.0% lipids and about 8.0% ash. Cooking flavored salt which comprises from about 10% w/w to about 15% w/w of the powdered flavoring product obtained by the process described above, mixed with sea salt or salt flakes for culinary use, where the % w/w refer to the final mix.

A process for the preparation of a flavoring powder based on macruran decapod crustaceans that comprises a) having macruran decapod crustacean cephalothoraxes kept at no more than about 2 degrees centigrade, b) optionally adding vegetable oil to the cephalothoraxes, c) heat treating the cephalothoraxes using dry heat at a temperature of between about 160 and about 180 degrees centigrades so that the inside reaches approximately 70 degrees centigrade for a period of approximately 2 minutes, d) extracting the hepatopancreas of the cephalothoraxes in liquid form, e) filtering the creamy liquid obtained without pressure, separating the solids present; f) lyophilizing the filtrated product obtained in e); and g) grinding the product obtained by lyophilization to a powder with a particle size from about 5 μm to about 80 μm. The flavoring product obtained by the process described above, where the macruran decapod crustacean cephalothoraxes come from Patagonian shrimps (Pleoticusmuelleri), being a powder of between about 5 μm to about 80 μm in particle size, and comprising about 39% protein, which does not include chitin, about 43.0% lipids and about 8.0% ash. Cooking flavored salt which comprises from about 10% w/w to about 15% w/w of the powdered flavoring product obtained by the process described above, mixed with sea salt or salt flakes for culinary use, where the % w/w refer to the final mix.

A preparation method of dried scallop is provided and includes: pretreating scallops, impregnating the pretreated scallops with one of the mixed solution of konjac glucomannan and sodium salt, the mixed solution of carrageenan and sodium salt, and the mixed solution of sodium alginate and sodium salt; and then drying the impregnated scallop. The preparation method effectively prevents scallop from cracking, scattering and other quality deterioration during high-temperature drying. The dried scallop processed in this way presents a high rehydration rate. After rehydration, the dried scallop has moderate hardness, high elasticity and good color, good quality and good flavor.

A preparation method of dried scallop is provided and includes: pretreating scallops, impregnating the pretreated scallops with one of the mixed solution of konjac glucomannan and sodium salt, the mixed solution of carrageenan and sodium salt, and the mixed solution of sodium alginate and sodium salt; and then drying the impregnated scallop. The preparation method effectively prevents scallop from cracking, scattering and other quality deterioration during high-temperature drying. The dried scallop processed in this way presents a high rehydration rate. After rehydration, the dried scallop has moderate hardness, high elasticity and good color, good quality and good flavor.

The present invention contemplates the creation of a low fluoride crustacean oil processed from a phospholipid-protein complex (PPC) formed immediately upon a crustacean (i.e., for example, krill) catch. Further, the crustacean oil may also have reduced trimethyl amine and/or trimethyl amino oxide content. The process comprises disintegrating the crustaceans into smaller particles, adding water, heating the result, adding enzyme(s) to hydrolyze the disintegrated material, deactivating the enzyme(s), removing solids from the enzymatically processed material to reduce fluoride content of the material, separating and drying the PPC material. Then, using extraction with supercritical CO.sub.2 or supercritical dimethyl ether, and/or ethanol as solvents, krill oil, inter alia, is separated from the PPC. In the extraction the krill oil can be separated almost wholly from the feed material.

The present invention contemplates the creation of a low fluoride crustacean oil processed from a phospholipid-protein complex (PPC) formed immediately upon a crustacean (i.e., for example, krill) catch. Further, the crustacean oil may also have reduced trimethyl amine and/or trimethyl amino oxide content. The process comprises disintegrating the crustaceans into smaller particles, adding water, heating the result, adding enzyme(s) to hydrolyze the disintegrated material, deactivating the enzyme(s), removing solids from the enzymatically processed material to reduce fluoride content of the material, separating and drying the PPC material. Then, using extraction with supercritical CO.sub.2 or supercritical dimethyl ether, and/or ethanol as solvents, krill oil, inter alia, is separated from the PPC. In the extraction the krill oil can be separated almost wholly from the feed material.

The present invention provides a method for oil extraction from dehydrated Euphausia superbas, which is related to the field of food biotechnology. The method combines a low temperature and low oxygen heat pump dehydration system with a microwave-assisted frozen-blasting dehydration system for Euphausia superba dehydration, resulting in formation of a large number of micro porous structures in dehydrated Euphausia superbas that is good for subsequent oil extraction. The dehydration and extraction process can be separated in the present invention. The low temperature and low oxygen heat pump dehydration system may be installed in shrimp boats to dehydrate Euphausia superbas before transportation so as to increase the effective payloads of shrimp boats. The extraction process of subcritical fluid assisted with ultrasonic operation is carried out under low temperature and low oxygen conditions, therefore the oxidation of active ingredients is avoided to a large extent. Compared with existing methods, the present invention not only possess excellent dehydration efficiency but also uses less time and energy.

The present invention provides a method for oil extraction from dehydrated Euphausia superbas, which is related to the field of food biotechnology. The method combines a low temperature and low oxygen heat pump dehydration system with a microwave-assisted frozen-blasting dehydration system for Euphausia superba dehydration, resulting in formation of a large number of micro porous structures in dehydrated Euphausia superbas that is good for subsequent oil extraction. The dehydration and extraction process can be separated in the present invention. The low temperature and low oxygen heat pump dehydration system may be installed in shrimp boats to dehydrate Euphausia superbas before transportation so as to increase the effective payloads of shrimp boats. The extraction process of subcritical fluid assisted with ultrasonic operation is carried out under low temperature and low oxygen conditions, therefore the oxidation of active ingredients is avoided to a large extent. Compared with existing methods, the present invention not only possess excellent dehydration efficiency but also uses less time and energy.

A method for pickling a marine product under conditions satisfying the following a) to c): a) the total ionic strength during treatment is from 0.2 to 0.8 mol/kg; b) the total sodium chloride concentration is less than 1.5% by weight; and c) the pH of the pickled shrimp meat is from 6.5 to 8.6, where, the total ionic strength and total sodium chloride concentration mean the ionic strength and the sodium chloride concentration with respect to the sum of the weight of the marine products and the weight of the water of the pickling solution, assuming that the weight of the marine products is the weight of water.

A method for pickling a marine product under conditions satisfying the following a) to c): a) the total ionic strength during treatment is from 0.2 to 0.8 mol/kg; b) the total sodium chloride concentration is less than 1.5% by weight; and c) the pH of the pickled shrimp meat is from 6.5 to 8.6, where, the total ionic strength and total sodium chloride concentration mean the ionic strength and the sodium chloride concentration with respect to the sum of the weight of the marine products and the weight of the water of the pickling solution, assuming that the weight of the marine products is the weight of water.