Volatile Profile of Nuts, Key Odorants and Analytical Methods for Quantification

Area of Science:

• Food Science
• Analytical Chemistry
• Nutritional Science

Background:

• Increasing consumer interest in nuts due to their nutritional value, including antioxidants and unsaturated fatty acids.
• The volatile profile of nuts is crucial for consumer acceptance, raw material selection, breeding programs, and quality assessment.
• Changes in volatile compounds can signal nut degradation or alteration, highlighting the importance of their analysis.

Purpose of the Study:

• To review and synthesize published literature on the determination of volatile compounds in nuts.
• To discuss the primary volatile compounds found in nuts.
• To examine methods for determining these volatiles and factors influencing their profile.

Main Methods:

• Comprehensive literature review of scientific publications on nut volatile determination.
• Categorization of information into sections covering key volatiles, analytical methods, and influencing factors.
• Analysis of how harvesting, health status, and thermal processing affect the volatile fraction.

Main Results:

• Identified key volatile compounds characteristic of various nuts.
• Reviewed diverse analytical techniques employed for volatile compound determination.
• Detailed the significant impact of harvesting conditions, nut health, and thermal treatments on the volatile profile.

Conclusions:

• The determination of volatile compounds in nuts is complex.
• Numerous variables, including agricultural practices and processing, significantly modify the volatile fraction.
• Understanding these volatiles is essential for quality control, product development, and consumer satisfaction in the nut industry.