Valorization Challenges to Almond Residues: Phytochemical Composition and Functional Application

Area of Science:

• Agricultural Science
• Food Science
• Biochemistry

Background:

• Almonds are nutritionally valuable, but research primarily focuses on the edible kernel.
• Almond by-products (skin, shell, hull) are underutilized, often relegated to animal feed or energy production.
• These by-products are rich sources of bioactive compounds, including phenolic acids and flavonoids.

Purpose of the Study:

• To review the phytochemical composition and bioactivity of almond by-products.
• To explore the potential functional applications of these underutilized almond components.
• To promote the valorization of almond residues for value-added products.

Main Methods:

• Literature review of scientific data on almond by-products.
• Analysis of phytochemical profiles (phenolic acids, flavonoids).
• Evaluation of biological activities, particularly antioxidant and anti-inflammatory properties.

Main Results:

• Almond by-products contain significant levels of bioactive phenolic compounds.
• Extracts from almond by-products demonstrate capacity to combat oxidative stress and inflammation.
• These by-products show potential for use in functional foods, animal feed, and cosmetic formulations.

Conclusions:

• Almond by-products represent a valuable, underutilized resource.
• Their rich phytochemical profile supports applications in health-promoting products.
• Further research and valorization strategies can unlock the full potential of almond residues.