MUMBAI, India, June 30 -- Intellectual Property India has published a patent application (202641075032 A) filed by Dr. B. Poornima; and Vijaya Institute Of Pharmaceutical Sciences Women on June 17, 2026, for Impact Of Thermal Processing On Oxidative Stability And Antioxidant Activity Of Peanuts And Peanut Butter.
Inventors include Dr. B. Poornima; A. Dhanusha; A. Meghana; Bi Bi Ameena; M. Sneha; and P. Pujitha.
The application for the patent was published on June 26, 2026, under issue no. 26/2026.
Abstract: ABSTRACT [0021] activity in peanuts and peanut-based products. This study evaluated the impact of dry heat (roasting) and hydrothermal treatment (boiling) on oxidative deterioration and antioxidant capacity in peanut oil and peanut butter. The lipid yield decreased significantly after hydrothermal treatment (20.0%) compared with roasted (36.0%) and raw samples (43.2%), indicating greater oil loss under moist heat conditions. Spectrophotometric analysis of primary oxidation products showed increased conjugated dienes (K232) and trienes (K268), with boiled samples exhibiting the highest values, suggesting enhanced lipid oxidation and hydroperoxide formation. Secondary oxidation assessed by TBARS revealed higher malondialdehyde levels in boiled peanuts (0.024 nmol/g), while roasted samples demonstrated comparatively lower oxidation. Protein carbonyl content was also higher in boiled samples (8.09 nmol/mg), confirming increased protein oxidation during hydrothermal processing. Antioxidant activity measured using the DPPH assay indicated strong radical scavenging activity in raw peanut oil, moderate activity in boiled samples, and reduced activity in roasted oil. However, roasted peanut butter showed higher inhibition, possibly due to the formation of Maillard reaction–derived antioxidant compounds during roasting. Overall, the results suggest that hydrothermal processing accelerates lipid and protein oxidation, whereas controlled roasting may help maintain oxidative stability and improve the functional quality of peanut- based products.
Disclaimer: Curated by HT Syndication.
