Available at: https://digitalcommons.calpoly.edu/theses/3146
Date of Award
7-2025
Degree Name
MS in Agriculture - Food Science and Nutrition
Department/Program
Food Science and Nutrition
College
College of Agriculture, Food, and Environmental Sciences
Advisor
Angelos Sikalids
Advisor Department
Food Science and Nutrition
Advisor College
College of Agriculture, Food, and Environmental Sciences
Abstract
This study evaluates the feasibility of repurposing avocado seeds from organic and conventional sources for human and animal consumption, with a focus on microbiological safety, chemical composition, and sustainability. Findings indicate that while avocado seeds contain bioactive compounds with potential nutritional and industrial applications, their microbial load and chemical profile vary significantly based on agricultural practices. Conventional avocado seeds may contain residual pesticide traces, whereas organic seeds may harbor higher microbial diversity, posing distinct challenges for food safety and processing.
The research investigates whether treatment methods such as heat, fermentation, or antimicrobial applications can mitigate microbial risks and enhance seed edibility. Additionally, the study explores potential uses in dietary supplements for humans or as a fiber-rich feed additive for livestock, such as dairy cows. The economic and environmental implications are also assessed, highlighting the dual benefit of reducing agricultural waste while creating new value-added products.
A comparative analysis of organic and conventional avocado seed microbiomes was conducted using laboratory-based microbial assays, chemical characterization, and literature review. Cost-effectiveness and regulatory feasibility were also examined to determine whether avocado seed-derived products could meet FDA or livestock feed safety standards.
The findings of this study suggest that avocado seeds, if properly processed, could serve as a sustainable alternative for both human and animal nutrition, supporting circular economy initiatives. Further research is recommended to refine processing techniques, assess long-term safety, and explore scalable applications.