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Related Experiment Videos

Omega-3-Fortified Lipid-Based Nutrient Supplement: Development, Characterization, and Consumer Acceptability.

Shashank Gaur1, Elizabeth M Sloffer1, Ankur Ojha2

  • 11 Department of Food Science and Human Nutrition, University of Illinois, Urbana-Champaign, Urbana, IL, USA.

Food and Nutrition Bulletin
|April 1, 2017
PubMed
Summary

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This study optimized omega-3 polyunsaturated fatty acid (PUFA) fortified lipid-based nutrition supplements (LNS) using flaxseed oil. The developed LNS demonstrated good storage stability and consumer acceptance, improving the omega-6/omega-3 PUFA ratio.

Area of Science:

  • Food Science and Technology
  • Nutritional Biochemistry
  • Public Health Nutrition

Background:

  • Incorporating omega-3 polyunsaturated fatty acids (PUFAs) into lipid-based nutrition supplements (LNS) for undernourished populations is challenging due to shelf-life and acceptability issues.
  • Flaxseed oil (FO) is a potential omega-3 source, but its stability in LNS requires optimization.

Purpose of the Study:

  • To systematically develop an omega-3 fortified LNS using flaxseed oil.
  • To optimize processing stability and evaluate consumer acceptance of the omega-3 fortified LNS.

Main Methods:

  • Response surface methodology (RSM) was employed to optimize LNS formulations with varying levels of flaxseed oil (FO), antioxidant (ascorbyl palmitate), and emulsifier (soy lecithin).
  • Stability was assessed by monitoring peroxide value, oil separation, water activity, moisture content, hardness, and vitamin C content under accelerated storage conditions (6 months at 40°C).
Keywords:
IndiaLNSflaxseed oillipid-based nutrition supplementresponse surface methodologystorage stability

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  • Consumer acceptability was evaluated using a 9-point hedonic scale.

    • Main Results:

    • Optimized LNS formulation included 4.9% FO, 0.02% antioxidant, and 1.5% emulsifier, balancing storage stability and omega-3 content.
    • The optimized LNS showed improved storage stability, with acceptable levels of oxidation and lipid separation after 6 months of accelerated storage.
    • Consumer acceptance of the FO-fortified LNS was comparable to commercial supplements among Indian women and students.

    Conclusions:

    • A stable omega-3 fortified LNS using flaxseed oil and staple Indian ingredients was successfully developed.
    • The optimized LNS formulation offers an improved omega-6/omega-3 PUFA ratio, addressing a key nutritional gap.
    • The study demonstrates the feasibility of using RSM to enhance the stability and acceptability of omega-3 fortified LNS.