Bioeffective krill oil compositions
First Claim
1. A method of production of krill oil comprising:
- obtaining a krill meal produced by a process comprising treating krill to destroy the activity of lipases and phospholipases naturally present in krill and wherein said krill meal has been stored for period of from 1 to 36 months; and
extracting krill oil from said krill meal that has been stored from 1 to 36 months with a polar solvent to provide a krill oil with greater than 30% phosphatidylcholine w/w of said krill oil and astaxanthin esters.
2 Assignments
1 Petition
Accused Products
Abstract
This invention discloses new krill oil compositions characterized by having high amounts of phospholipids, astaxanthin esters and/or omega-3 contents. The krill oils are obtained from krill meal using supercritical fluid extraction in a two stage process. Stage 1 removes the neutral lipid by extracting with neat supercritical CO2 or CO2 plus approximately 5% of a co-solvent. Stage 2 extracts the actual krill oils by using supercritical CO2 in combination with approximately 20% ethanol. The krill oil materials obtained are compared with commercially available krill oil and found to be more bioeffective in a number of areas such as anti-inflammation, anti-oxidant effects, improving insulin resistances and improving blood lipid profile.
45 Citations
19 Claims
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1. A method of production of krill oil comprising:
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obtaining a krill meal produced by a process comprising treating krill to destroy the activity of lipases and phospholipases naturally present in krill and wherein said krill meal has been stored for period of from 1 to 36 months; and extracting krill oil from said krill meal that has been stored from 1 to 36 months with a polar solvent to provide a krill oil with greater than 30% phosphatidylcholine w/w of said krill oil and astaxanthin esters. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of production of Euphausia superba krill oil comprising:
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a) obtaining a Euphausia superba krill meal produced by a process comprising treating Euphausia superba to destroy the activity of lipases and phospholipases naturally present in Euphausia superba and wherein said Euphausia superba krill meal has been stored from 1 to 36 months; and b) extracting Euphausia superba oil from said krill meal that has been stored from 1 to 36 months with a polar solvent to provide a Euphausia superba krill oil comprising greater than 30% phosphatidylcholine w/w of said Euphausia superba krill oil, less than 3% free fatty acids w/w of said Euphausia superba krill oil, and at least 100 mg/kg astaxanthin esters. - View Dependent Claims (14, 15, 16, 17, 18, 19)
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Specification