Chemical Composition and Antifungal Activity of Coffee By-Products and Chitosan Incorporated into a Polymeric Matrix on Botrytis sp. and Rhizopus sp.

• DOI: 10.20944/preprints202502.0492.v1
• Publication Date: 2025-02-07T02:38:16Z
• Authors: Gonzalo Hernández...; Laura Leticia Bar...
• Keywords: Rhizopus; Botrytis; Matrix (chemical analysis)

In blueberry commercialization, non-biodegradable synthetic plastic packaging is used for refrigerated storage to maintain the quality of horticultural product. The fungi Botrytis sp. and Rhizopus can cause significant losses at this stage. Consequently, formula-tions production degradable polymeric based on polylactic acid (PLA)/poly(butylene adipate-co-terephthalate) (PBAT) 60/40 (PP) with coffee parchment (CP), green bean oil (GCBO), chitosan solution (Ch), nanoparticles (ChNp) nanostructured coating (NC) were develop biodegradable polymer matrix (PM). Caffeine hexadecanoic identified as major compounds in GCBO, CP flavonoids, terpenes lignans. 100% mycelial growth inhibition was observed 1, 2 3% 20% Ch, 10 ChNp, NC sp.; GCBO inhibited spore both all evaluated doses. vivo tests, a lower incidence 30% severity obtained treatment compared control. For sp., an 55% 10% NC. PM culture medium presented fungistatic effect. greatest (63%) PLA/PBAT+Nano (PP+NC) (100%) PM+CW made PLA/PBAT+CP+NC (PPCP+NC), PP PP+NC Coffee by-products have potential natural fungicides control postharvest fruits vegetables.