Pre- and Post-harvest Factors Affecting Glucosinolate Content in Broccoli

Area of Science:

• Plant biochemistry and nutrition
• Agricultural science
• Food science

Background:

• Glucosinolates (GLs) are bioactive compounds in broccoli (Brassica oleracea) linked to reduced cancer and cardiovascular disease risk.
• GL synthesis pathways are understood in Arabidopsis, with 56 genes implicated in broccoli.

Purpose of the Study:

• To provide a comprehensive review of pre- and post-harvest factors influencing GL accumulation in broccoli.
• To address the lack of systematic reviews on GL content modulation in broccoli.

Main Methods:

• Literature review of scientific publications on broccoli glucosinolates.
• Analysis of factors affecting GL synthesis, profiles, and levels.

Main Results:

• Significant cultivar-to-cultivar variation exists in GL content in response to environmental and handling factors.
• Both pre-harvest (genotype, environment, stage) and post-harvest (storage, treatment) factors impact GL levels.

Conclusions:

• Understanding factor interactions is crucial for developing broccoli with enhanced health benefits.
• Tailoring pre- and post-harvest strategies to specific broccoli genotypes is essential for maintaining quality and bioactivity.