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. 2018 Jun 12;27(6):1871-1875.
doi: 10.1007/s10068-018-0410-5. eCollection 2018 Dec.

Effect of pepper tree (Schinus molle) essential oil-loaded chitosan bio-nanocomposites on postharvest control of Colletotrichum gloeosporioides and quality evaluations in avocado (Persea americana) cv. Hass

Mireya Esbeiddy Chávez-Magdaleno  1 , Ramsés Ramón González-Estrada  1 , Anelsy Ramos-Guerrero  1 , Maribel Plascencia-Jatomea  2 , Porfirio Gutiérrez-Martínez  1
Affiliations

Effect of pepper tree (Schinus molle) essential oil-loaded chitosan bio-nanocomposites on postharvest control of Colletotrichum gloeosporioides and quality evaluations in avocado (Persea americana) cv. Hass

Mireya Esbeiddy Chávez-Magdaleno et al. Food Sci Biotechnol. .

Abstract

Preventive and curative activity of postharvest treatments with chitosan nanoparticles (CS) and chitosan biocomposites loaded with pepper tree essential oil (CS-PEO) against anthracnose were evaluated on Avocado (Persea americana) cv. Hass artificially inoculated in rind wounds. After 10 days of storage significant preventive and curative activity against Colletotrichum gloeosporioides was observed with the absence of internal damage by applying CS and CS-PEO. Quality parameters like water losses and firmness changes were assessed on fruit treated. CS and CS-PEO were effective to reduce water losses and firmness losses.

Keywords: Anthracnose; Coatings; Disease control; Postharvest; Quality.

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Conflict of interest statement

Compliance with ethical standardsThe authors declare no conflict of interest.

Figures

Fig. 1
Fig. 1
Efficacy of treatments on internal severity of fruits: (A) preventive and (B) curative applications. Mean values and LSD intervals (n = 10). For each treatment, mean values not followed by the same lowercase letter are significantly different (P < 0.05). Control (1) (treated with sterile distilled water); pathogen (2); CS (nanoparticles of chitosan) (3) and CS-PEO (chitosan-pepper tree essential oil biocomposites) (4)
Fig. 2
Fig. 2
Weight loss of avocado fruits during storage at 25 °C after treatment applications: (A) Preventive and (B) curative effect. Mean values and LSD intervals (n = 10). For each treatment, mean values not followed by the same lowercase letter are significantly different (P < 0.05). Control (1) (treated with sterile distilled water); pathogen (2); CS (nanoparticles of chitosan) (3) and CS-PEO (chitosan-pepper tree essential oil biocomposites) (4)
Fig. 3
Fig. 3
Firmness determinations of avocado fruits during storage at 25 °C after treatment applications: (A) Preventive and (B) curative effect. Mean values and LSD intervals (n = 10). For each treatment, mean values not followed by the same lowercase letter are significantly different (P < 0.05). Control (1) (treated with sterile distilled water); pathogen (2); CS (nanoparticles of chitosan) (3) and CS-PEO (chitosan-pepper tree essential oil biocomposites) (4)
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