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CN-121986935-A - Fucoxanthin-containing diglyceride oil and preparation method and application thereof

CN121986935ACN 121986935 ACN121986935 ACN 121986935ACN-121986935-A

Abstract

The application relates to the field of natural product extraction, in particular to grease containing fucoxanthin, a preparation method and application thereof, wherein the method comprises the following steps: mixing the seaweed raw material with diglyceride oil, and performing extraction operation, thereby extracting fucoxanthin from the seaweed raw material and obtaining oil containing fucoxanthin. According to the application, the diglyceride oil is adopted as an extraction medium, so that compared with the traditional edible oil (such as soybean oil, olive oil and the like), the extraction efficiency of fucoxanthin in seaweed is remarkably better, and the fucoxanthin content in the diglyceride oil can be optimally improved by 50% under the same condition, so that the yield of target active ingredients is greatly improved.

Inventors

  • NI JIANGFENG
  • HE LIN
  • Fan Linen
  • ZHENG LILI
  • ZHANG YUEYANG

Assignees

  • 脂代生物科技(杭州)有限公司

Dates

Publication Date
20260508
Application Date
20260306

Claims (10)

  1. 1. A process for preparing a fucoxanthin-containing diglyceride oil comprising the steps of: Mixing seaweed raw material with diglyceride oil, extracting, thereby extracting fucoxanthin from the seaweed raw material to obtain the fucoxanthin-containing diglyceride oil.
  2. 2. The method of claim 1, wherein, The seaweed material is selected from at least one of Undaria pinnatifida, kelp or Sargassum fusiforme.
  3. 3. The method of claim 1, wherein, The mass ratio of the diglyceride oil to the seaweed raw material is (30:15) to (30:1.5).
  4. 4. The method of claim 1, wherein, The extraction operation includes at least one of stirring, sonication, or shaking.
  5. 5. The method of claim 1 or 4, wherein, The extraction operation is carried out under heating conditions at a temperature of 40 ℃ to 70 ℃.
  6. 6. The method of claim 1, wherein, The extraction operation is carried out for a period of 0.5 hours to 3 hours.
  7. 7. The method of claim 1, wherein, The diglyceride oil has a diglyceride content of 40% to 90%.
  8. 8. A diglyceride oil containing fucoxanthin is characterized in that, The grease comprises diglyceride oil and fucoxanthin, wherein, The fucoxanthin is extracted from the seaweed raw material by the method of any one of claims 1-7.
  9. 9. The fucoxanthin-containing diglyceride oil according to claim 8, The content of fucoxanthin in the grease is 40 ppm-223 ppm.
  10. 10. Use of fucoxanthin-containing diglyceride oil according to claim 8 or 9 in food, health care or pharmaceutical products.

Description

Fucoxanthin-containing diglyceride oil and preparation method and application thereof Technical Field The invention relates to the field of natural product extraction, in particular to fucoxanthin-containing diglyceride oil and a preparation method and application thereof. Background Fucoxanthin, a carotenoid naturally occurring in brown seaweed and diatoms, has received a great deal of attention in recent years for its biological activity. Researches show that the pigment has remarkable antioxidation property and also has potential value in the aspects of anti-obesity, anti-diabetes, anti-inflammatory, cardiovascular disease prevention, tumor intervention and the like. With the rapid development of the health food market, the effective integration of fucoxanthin into daily foods or health products has become an important research direction of the industry. However, the instability, water insolubility and low bioavailability of fucoxanthin itself severely limit its scale of application in practical production. These inherent characteristics lead to a number of technical bottlenecks in the extraction, storage and human body absorption links, and how to realize efficient, safe and economical extraction becomes a difficult problem to be broken through in industry. Currently, the traditional methods for extracting fucoxanthin from seaweed mainly rely on organic solvents such as ethanol, methanol, ethyl acetate or n-hexane. Although the solvent extraction process can obtain fucoxanthin with certain purity, the process is generally long in time and high in energy consumption, and the use of volatile organic compounds is involved, so that hidden danger in safety and environmental protection is brought. The problem of solvent residue may also affect the edible safety of the final product, which is contrary to the trend of the modern food industry towards green, clean production. Therefore, the development of environmentally friendly alternative extraction techniques has become a clear evolutionary direction in this field. In order to promote the application of fucoxanthin in food processing, low-cost extraction of fucoxanthin in seaweed by using edible oil is studied. The Chinese patent publication No. CN117343030A discloses a preparation method of food-grade fucoxanthin extract, which adopts conventional edible oil (including linseed oil, soybean oil, rapeseed oil, olive oil and the like) to ultrasonically assist in extracting fucoxanthin from seaweed, so that the fucoxanthin extract is directly obtained, and the process is simple and environment-friendly. However, the method has the defect that the conventional edible oil has poor fucoxanthin extraction effect, so that the utilization rate of fucoxanthin in seaweed is low. This technical bottleneck essentially points to a deeper industry need to find a new lipid carrier that meets both food-grade safety standards and has a high extraction capacity for fucoxanthin. The existing edible oil scheme solves the hidden trouble of solvent residue, but fails to fundamentally optimize extraction kinetics and thermodynamic process, has limited extraction effect improvement, and cannot meet the severe requirements of large-scale commercial production on efficiency and economy. Therefore, a brand new idea is urgently needed in the industry, and the efficiency of the oil extraction method is remarkably improved on the premise of not introducing chemical risks, so that a road is opened up for developing functional oil products with high added values. Disclosure of Invention The application aims to overcome the defects of low extraction efficiency, non-environment-friendly process and poor economy of the conventional edible oil for extracting fucoxanthin in the prior art, and provides the fucoxanthin-containing diglyceride oil, and the preparation method and application thereof. In order to achieve the aim of the invention, the invention is realized by the following technical scheme: In a first aspect, the present invention provides a process for preparing a fucoxanthin-containing diglyceride oil comprising the steps of: Mixing seaweed raw material with diglyceride oil, extracting, thereby extracting fucoxanthin from the seaweed raw material to obtain the fucoxanthin-containing diglyceride oil. As described in the background art, although extraction with edible oil instead of organic solvent has advanced in terms of safety and environmental protection, for example, methods using conventional edible oil such as linseed oil and olive oil have been disclosed, practice shows that such oil is not ideal in fucoxanthin extraction efficiency, precious active ingredients in seaweed cannot be fully utilized, and economic feasibility and application potential of the technology in the field of functional foods are restricted. The applicant found that the core to solve this bottleneck problem was to find a food grade lipid carrier with better affinity for fucoxanthin, thus achieving a substa