Valorization of Rana Chensinensis Ovum: An Integrated Chemometric and TOPSIS Approach Revealed Its Potential as a Roe...

Area of Science:

• Food Science and Technology
• Nutritional Biochemistry
• Agricultural Byproduct Valorization

Background:

• Rana chensinensis ovum (RCO) is an agricultural waste product from Oviductus Ranae production.
• The nutritional potential of RCO remains largely unexploited.
• Fish roes serve as a benchmark for evaluating alternative roe resources.

Purpose of the Study:

• To assess the viability of Rana chensinensis ovum (RCO) as a premium roe resource.
• To compare RCO's nutritional profile against commercially available fish roes.
• To evaluate RCO for its fatty acid composition, vitamin E content, antioxidant capacity, and economic factors.

Main Methods:

• Utilized cluster analysis, TOPSIS (Technique for Order of Preference by Similarity to Ideal Solution), and chemometrics for evaluation.
• Assessed major unsaturated fatty acids (UFAs), n-6/n-3 UFAs ratio, vitamin E, vitamin E to linoleic acid (LA) ratio, antioxidant capacity, cost, and oil extraction rate.
• Compared RCO against 31 different commercial roe samples.

Main Results:

• RCO exhibited an ideal n-6/n-3 UFAs ratio of approximately 1:1.1 and a high concentration of seven main UFAs (ranking 5th/31).
• RCO demonstrated superior vitamin E content (10.9465 mg·g⁻¹), ranking 1st among all tested roes.
• RCO ranked first overall in the TOPSIS evaluation, indicating superior economic viability and nutritional value compared to other roes.

Conclusions:

• Rana chensinensis ovum (RCO) is a highly promising roe resource with significant nutritional and economic advantages.
• RCO's ideal fatty acid profile, high vitamin E content, and low cost position it as a valuable functional food or caviar substitute.
• Valorizing RCO reduces agricultural waste and offers a cost-effective, nutrient-rich alternative for consumers.