Allergenic Content of New Alimentary Pasta Made of Lentils Compared with Lentil Seeds and Analysis of the Impact of Boiling Processing

There is growing interest in legumes such as lentil as healthy ingredients in gluten-free products. In that respect, foods based on lentils, like alimentary pasta, have been produced and successfully commercialized in recent years. Lentils are also known for inducing severe allergic reactions; however, it is currently unknown if novel alimentary pasta based on lentil retains the same allergenic potential as lentil seeds. In this study, the allergenic content of alimentary lentil pasta compared with lentil seeds was analyzed by immunoassays using sera from patients with allergic sensitization to lentil or with specific antibodies that recognize major lentil allergens. The effect of boiling processing was also analyzed. Results showed that alimentary lentil pasta has a significant allergenic content close to the general allergenic content observed for lentil seeds. Both alimentary lentil pasta and lentil seeds were similarly affected by boiling, with an important transfer of allergens from the food to the boiling water. This study shows that alimentary pasta made of lentils has a significant allergenic potential and highlights the necessity to analyze the allergenic content of new foods and novel ingredients introduced in traditional food products.

Automated summary

There is a growing interest in using legumes like lentil as healthy ingredients in gluten-free products. However, lentils are known to induce severe allergic reactions, and it is unclear whether lentil-based pasta retains the same allergenic potential as lentil seeds. This study found that alimentary lentil pasta has a significant allergenic content similar to lentil seeds. Boiling process also leads to the transfer of allergens from the food to boiling water. These findings highlight the importance of analyzing the allergenic content of new foods and ingredients introduced in traditional food products.